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Observation of time-dependent $CP$ violation and measurement of the branching fraction of $B^0 \to J/\psi \pi^0$ decays
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Althubiti, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, N. K. Baghel, S. Bahinipati, P. Bambade, Sw. Banerjee, et al (374)
Oct 14 2024 hep-ex arXiv:2410.08622v1

@misc{2410.08622, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Althubiti and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and N.~K.~Baghel and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bondar and J.~Borah and A.~Boschetti and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and Q.~Campagna and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and C.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and J.~X.~Cui and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and G.~De Pietro and R.~de Sangro and M.~Destefanis and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and M.~Dorigo and S.~Dubey and K.~Dugic and G.~Dujany and P.~Ecker and D.~Epifanov and P.~Feichtinger and T.~Ferber and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and P.~Gironella and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and S.~Granderath and E.~Graziani and Z.~Gruberová and Y.~Guan and K.~Gudkova and I.~Haide and Y.~Han and T.~Hara and H.~Hayashii and S.~Hazra and C.~Hearty and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and R.~Hoppe and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and D.~Kalita and J.~Kandra and K.~H.~Kang and S.~Kang and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and J.-Y.~Kim and K.-H.~Kim and Y.-K.~Kim and Y.~J.~Kim and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and P.~Križan and P.~Krokovny and T.~Kuhr and Y.~Kulii and D.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and K.~Lalwani and T.~Lam and T.~S.~Lau and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and C.~Lemettais and P.~Leo and L.~K.~Li and Q.~M.~Li and W.~Z.~Li and Y.~Li and Y.~B.~Li and Y.~P.~Liao and J.~Libby and J.~Lin and M.~H.~Liu and Q.~Y.~Liu and Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and M.~Maggiora and S.~P.~Maharana and R.~Maiti and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and C.~Martellini and A.~Martens and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and C.~Miller and M.~Mirra and S.~Mitra and K.~Miyabayashi and G.~B.~Mohanty and S.~Mondal and S.~Moneta and H.-G.~Moser and R.~Mussa and I.~Nakamura and M.~Nakao and Y.~Nakazawa and M.~Naruki and Z.~Natkaniec and A.~Natochii and M.~Nayak and G.~Nazaryan and M.~Neu and S.~Nishida and S.~Ogawa and H.~Ono and Y.~Onuki and F.~Otani and P.~Pakhlov and G.~Pakhlova and E.~Paoloni and S.~Pardi and H.~Park and J.~Park and K.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and I.~Prudiiev and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and L.~Reuter and I.~Ripp-Baudot and G.~Rizzo and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and D.~A.~Sanders and S.~Sandilya and L.~Santelj and V.~Savinov and B.~Scavino and C.~Schmitt and S.~Schneider and M.~Schnepf and K.~Schoenning and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and C.~P.~Shen and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and W.~Song and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and J.~Strube and Y.~Sue and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and N.~Suwonjandee and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and M.~Veronesi and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and M.~Wakai and S.~Wallner and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and J.~Yelton and J.~H.~Yin and K.~Yoshihara and Y.~Yusa and L.~Zani and F.~Zeng and B.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{O}bservation of time-dependent ${CP}$ violation and measurement of the branching fraction of ${B}^0 \to {J}/\psi \pi^0$ decays}, year = {2024}, eprint = {2410.08622}, note = {arXiv:2410.08622v1} }
PDF
We present a measurement of the branching fraction and time-dependent charge-parity ($CP$) decay-rate asymmetries in $B^0 \to J/\psi \pi^0$ decays. The data sample was collected with the Belle~II detector at the SuperKEKB asymmetric $e^+e^-$ collider in 2019-2022 and contains $(387\pm 6)\times 10^6$ $B\overline{B}$ meson pairs from $\Upsilon(4S)$ decays. We reconstruct $392\pm 24$ signal decays and fit the $CP$ parameters from the distribution of the proper-decay-time difference of the two $B$ mesons. We measure the branching fraction to be $B(B^0 \to J/\psi \pi^0)=(2.02 \pm 0.12 \pm 0.10)\times 10^{-5}$ and the direct and mixing-induced $CP$ asymmetries to be $C_{CP}=0.13 \pm 0.12 \pm 0.03$ and $S_{CP}=-0.88 \pm 0.17 \pm 0.03$, respectively, where the first uncertainties are statistical and the second are systematic. We observe mixing-induced $CP$ violation with a significance of $5.0$ standard deviations for the first time in this mode.
Search for $C\!P$ violation in $D^+_{(s)}\to{}K_{S}^{0}K^{-}\pi^{+}\pi^{+}$ decays using triple and quadruple products
Belle, Belle II Collaborations, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Althubiti, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, N. K. Baghel, S. Bahinipati, P. Bambade, Sw. Banerjee, et al (348)
Sep 25 2024 hep-ex arXiv:2409.15777v1

@misc{2409.15777, author = {Belle and Belle II Collaborations and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Althubiti and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and N.~K.~Baghel and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Boschetti and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and P.~Cheema and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and J.~X.~Cui and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and G.~De Pietro and R.~de Sangro and M.~Destefanis and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and M.~Dorigo and S.~Dubey and K.~Dugic and G.~Dujany and P.~Ecker and D.~Epifanov and J.~Eppelt and P.~Feichtinger and T.~Ferber and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and P.~Gironella Gironell and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and E.~Graziani and Z.~Gruberová and Y.~Guan and K.~Gudkova and I.~Haide and Y.~Han and T.~Hara and H.~Hayashii and S.~Hazra and C.~Hearty and A.~Heidelbach and I.~Heredia de la Cruz and T.~Higuchi and M.~Hoek and M.~Hohmann and R.~Hoppe and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and J.-Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and P.~Križan and P.~Krokovny and T.~Kuhr and Y.~Kulii and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and K.~Lalwani and T.~Lam and T.~S.~Lau and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and C.~Lemettais and P.~Leo and C.~Li and L.~K.~Li and Q.~M.~Li and W.~Z.~Li and Y.~Li and Y.~B.~Li and Y.~P.~Liao and J.~Libby and J.~Lin and M.~H.~Liu and Q.~Y.~Liu and Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and M.~Maggiora and S.~P.~Maharana and R.~Maiti and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and C.~Martellini and A.~Martens and A.~Martini and T.~Martinov and L.~Massaccesi and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and C.~Miller and M.~Mirra and S.~Mitra and S.~Mondal and S.~Moneta and H.-G.~Moser and I.~Nakamura and M.~Nakao and M.~Naruki and Z.~Natkaniec and A.~Natochii and M.~Nayak and G.~Nazaryan and M.~Neu and S.~Nishida and S.~Ogawa and H.~Ono and F.~Otani and E.~R.~Oxford and G.~Pakhlova and E.~Paoloni and S.~Pardi and H.~Park and J.~Park and K.~Park and S.-H.~Park and A.~Passeri and T.~K.~Pedlar and I.~Peruzzi and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and I.~Prudiiev and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and L.~Reuter and I.~Ripp-Baudot and G.~Rizzo and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and L.~Santelj and V.~Savinov and B.~Scavino and S.~Schneider and M.~Schnepf and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and W.~Song and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and J.~Strube and Y.~Sue and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and N.~Suwonjandee and H.~Svidras and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and I.~Ueda and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and S.~E.~Vahsen and R.~van Tonder and M.~Veronesi and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and M.~Wakai and S.~Wallner and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and S.~Watanuki and C.~Wessel and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and J.~Yelton and J.~H.~Yin and C.~Z.~Yuan and L.~Zani and F.~Zeng and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{S}earch for ${C}\!{P}$ violation in ${D}^+_{(s)}\to{}{K}_{{S}}^{0}{K}^{-}\pi^{+}\pi^{+}$ decays using triple and quadruple products}, year = {2024}, eprint = {2409.15777}, note = {arXiv:2409.15777v1} }
PDF
We perform the first search for $C\!P$ violation in ${D_{(s)}^{+}\to{}K_{S}^{0}K^{-}\pi^{+}\pi^{+}}$ decays. We use a combined data set from the Belle and Belle II experiments, which study $e^+e^-$ collisions at center-of-mass energies at or near the $\Upsilon(4S)$ resonance. We use 980 fb$^{-1}$ of data from Belle and 428 fb$^{-1}$ of data from Belle~II. We measure six $C\!P$-violating asymmetries that are based on triple products and quadruple products of the momenta of final-state particles, and also the particles' helicity angles. We obtain a precision at the level of 0.5% for $D^+\to{}K_{S}^{0}K^{-}\pi^{+}\pi^{+}$ decays, and better than 0.3% for $D^+_{s}\to{}K_{S}^{0}K^{-}\pi^{+}\pi^{+}$ decays. No evidence of $C\!P$ violation is found. Our results for the triple-product asymmetries are the most precise to date for singly-Cabibbo-suppressed $D^+$ decays. Our results for the other asymmetries are the first such measurements performed for charm decays.
Measurement of inclusive jet cross section and substructure in $p$$+$$p$ collisions at $\sqrt{s_{_{NN}}}=200$ GeV
PHENIX Collaboration, N.J. Abdulameer, U. Acharya, C. Aidala, N.N. Ajitanand, Y. Akiba, R. Akimoto, J. Alexander, M. Alfred, V. Andrieux, S. Antsupov, K. Aoki, N. Apadula, H. Asano, E.T. Atomssa, T.C. Awes, B. Azmoun, V. Babintsev, M. Bai, X. Bai, et al (428)
Aug 22 2024 hep-ex nucl-ex arXiv:2408.11144v1

@misc{2408.11144, author = {PHENIX Collaboration and N.J.~Abdulameer and U.~Acharya and C.~Aidala and N.N.~Ajitanand and Y.~Akiba and R.~Akimoto and J.~Alexander and M.~Alfred and V.~Andrieux and S.~Antsupov and K.~Aoki and N.~Apadula and H.~Asano and E.T.~Atomssa and T.C.~Awes and B.~Azmoun and V.~Babintsev and M.~Bai and X.~Bai and N.S.~Bandara and B.~Bannier and E.~Bannikov and K.N.~Barish and S.~Bathe and V.~Baublis and C.~Baumann and S.~Baumgart and A.~Bazilevsky and M.~Beaumier and R.~Belmont and A.~Berdnikov and Y.~Berdnikov and L.~Bichon and D.~Black and B.~Blankenship and D.S.~Blau and J.S.~Bok and V.~Borisov and K.~Boyle and M.L.~Brooks and J.~Bryslawskyj and H.~Buesching and V.~Bumazhnov and S.~Butsyk and S.~Campbell and R.~Cervantes and C.-H.~Chen and D.~Chen and M.~Chiu and C.Y.~Chi and I.J.~Choi and J.B.~Choi and S.~Choi and P.~Christiansen and T.~Chujo and V.~Cianciolo and Z.~Citron and B.A.~Cole and M.~Connors and R.~Corliss and N.~Cronin and N.~Crossette and M.~Csanád and T.~Csörgő and L.~D'Orazio and T.W.~Danley and A.~Datta and M.S.~Daugherity and G.~David and K.~DeBlasio and K.~Dehmelt and A.~Denisov and A.~Deshpande and E.J.~Desmond and L.~Ding and A.~Dion and D.~Dixit and V.~Doomra and J.H.~Do and O.~Drapier and A.~Drees and K.A.~Drees and J.M.~Durham and A.~Durum and H.~En'yo and T.~Engelmore and A.~Enokizono and R.~Esha and K.O.~Eyser and B.~Fadem and W.~Fan and N.~Feege and D.E.~Fields and M.~Finger and Jr.~and M.~Finger and D.~Firak and D.~Fitzgerald and F.~Fleuret and S.L.~Fokin and J.E.~Frantz and A.~Franz and A.D.~Frawley and Y.~Fukao and Y.~Fukuda and T.~Fusayasu and K.~Gainey and P.~Gallus and C.~Gal and P.~Garg and A.~Garishvili and I.~Garishvili and H.~Ge and F.~Giordano and A.~Glenn and X.~Gong and M.~Gonin and Y.~Goto and R.~Granier de Cassagnac and N.~Grau and S.V.~Greene and M.~Grosse Perdekamp and T.~Gunji and T.~Guo and H.~Guragain and Y.~Gu and T.~Hachiya and J.S.~Haggerty and K.I.~Hahn and H.~Hamagaki and H.F.~Hamilton and J.~Hanks and S.Y.~Han and S.~Hasegawa and T.O.S.~Haseler and K.~Hashimoto and R.~Hayano and T.K.~Hemmick and T.~Hester and X.~He and J.C.~Hill and K.~Hill and A.~Hodges and R.S.~Hollis and K.~Homma and B.~Hong and T.~Hoshino and N.~Hotvedt and J.~Huang and T.~Ichihara and Y.~Ikeda and K.~Imai and Y.~Imazu and M.~Inaba and A.~Iordanova and D.~Isenhower and A.~Isinhue and D.~Ivanishchev and S.J.~Jeon and M.~Jezghani and X.~Jiang and Z.~Ji and B.M.~Johnson and K.S.~Joo and D.~Jouan and D.S.~Jumper and J.~Kamin and S.~Kanda and B.H.~Kang and J.H.~Kang and J.S.~Kang and D.~Kapukchyan and J.~Kapustinsky and S.~Karthas and D.~Kawall and A.V.~Kazantsev and J.A.~Key and V.~Khachatryan and P.K.~Khandai and A.~Khanzadeev and K.M.~Kijima and C.~Kim and D.J.~Kim and E.-J.~Kim and M.~Kim and Y.-J.~Kim and Y.K.~Kim and D.~Kincses and E.~Kistenev and J.~Klatsky and D.~Kleinjan and P.~Kline and T.~Koblesky and M.~Kofarago and B.~Komkov and J.~Koster and D.~Kotchetkov and D.~Kotov and L.~Kovacs and F.~Krizek and S.~Kudo and K.~Kurita and M.~Kurosawa and Y.~Kwon and Y.S.~Lai and J.G.~Lajoie and A.~Lebedev and D.M.~Lee and G.H.~Lee and J.~Lee and K.B.~Lee and K.S.~Lee and S.~Lee and S.H.~Lee and M.J.~Leitch and M.~Leitgab and Y.H.~Leung and B.~Lewis and S.H.~Lim and M.X.~Liu and X.~Li and X.~Li and V.-R.~Loggins and S.~Lokos and D.A.~Loomis and K.~Lovasz and D.~Lynch and C.F.~Maguire and T.~Majoros and Y.I.~Makdisi and M.~Makek and A.~Manion and V.I.~Manko and E.~Mannel and M.~McCumber and P.L.~McGaughey and D.~McGlinchey and C.~McKinney and A.~Meles and M.~Mendoza and B.~Meredith and Y.~Miake and T.~Mibe and A.C.~Mignerey and A.~Milov and D.K.~Mishra and J.T.~Mitchell and M.~Mitrankova and Iu.~Mitrankov and G.~Mitsuka and S.~Miyasaka and S.~Mizuno and A.K.~Mohanty and S.~Mohapatra and P.~Montuenga and T.~Moon and D.P.~Morrison and M.~Moskowitz and T.V.~Moukhanova and B.~Mulilo and T.~Murakami and J.~Murata and A.~Mwai and T.~Nagae and K.~Nagai and S.~Nagamiya and K.~Nagashima and T.~Nagashima and J.L.~Nagle and M.I.~Nagy and I.~Nakagawa and Y.~Nakamiya and K.R.~Nakamura and T.~Nakamura and K.~Nakano and C.~Nattrass and P.K.~Netrakanti and M.~Nihashi and T.~Niida and R.~Nouicer and N.~Novitzky and T.~Novák and G.~Nukazuka and A.S.~Nyanin and E.~O'Brien and C.A.~Ogilvie and H.~Oide and K.~Okada and J.D.~Orjuela Koop and M.~Orosz and J.D.~Osborn and A.~Oskarsson and G.J.~Ottino and K.~Ozawa and R.~Pak and V.~Pantuev and V.~Papavassiliou and I.H.~Park and J.S.~Park and S.~Park and S.K.~Park and L.~Patel and M.~Patel and S.F.~Pate and J.-C.~Peng and D.V.~Perepelitsa and G.D.N.~Perera and D.Yu.~Peressounko and C.E.~PerezLara and J.~Perry and R.~Petti and M.~Phipps and C.~Pinkenburg and R.P.~Pisani and M.~Potekhin and M.L.~Purschke and H.~Qu and J.~Rak and I.~Ravinovich and K.F.~Read and D.~Reynolds and V.~Riabov and Y.~Riabov and E.~Richardson and D.~Richford and T.~Rinn and N.~Riveli and D.~Roach and S.D.~Rolnick and M.~Rosati and Z.~Rowan and M.S.~Ryu and A.S.~Safonov and B.~Sahlmueller and N.~Saito and T.~Sakaguchi and H.~Sako and V.~Samsonov and M.~Sarsour and S.~Sato and S.~Sawada and B.~Schaefer and B.K.~Schmoll and K.~Sedgwick and J.~Seele and R.~Seidl and Y.~Sekiguchi and A.~Seleznev and A.~Sen and R.~Seto and P.~Sett and A.~Sexton and D.~Sharma and A.~Shaver and I.~Shein and T.-A.~Shibata and K.~Shigaki and M.~Shimomura and T.~Shioya and K.~Shoji and P.~Shukla and A.~Sickles and C.L.~Silva and D.~Silvermyr and B.K.~Singh and C.P.~Singh and V.~Singh and M.~Skolnik and M.~Slunečka and K.L.~Smith and M.~Snowball and S.~Solano and R.A.~Soltz and W.E.~Sondheim and S.P.~Sorensen and I.V.~Sourikova and P.W.~Stankus and P.~Steinberg and E.~Stenlund and M.~Stepanov and A.~Ster and S.P.~Stoll and M.R.~Stone and T.~Sugitate and A.~Sukhanov and T.~Sumita and J.~Sun and Z.~Sun and J.~Sziklai and A.~Takahara and A.~Taketani and Y.~Tanaka and K.~Tanida and M.J.~Tannenbaum and S.~Tarafdar and A.~Taranenko and G.~Tarnai and E.~Tennant and R.~Tieulent and A.~Timilsina and T.~Todoroki and M.~Tomášek and H.~Torii and C.L.~Towell and R.S.~Towell and I.~Tserruya and Y.~Ueda and B.~Ujvari and H.W.~van Hecke and M.~Vargyas and E.~Vazquez-Zambrano and A.~Veicht and J.~Velkovska and M.~Virius and V.~Vrba and N.~Vukman and E.~Vznuzdaev and R.~Vértesi and X.R.~Wang and D.~Watanabe and K.~Watanabe and Y.~Watanabe and Y.S.~Watanabe and F.~Wei and S.~Whitaker and S.~Wolin and C.L.~Woody and M.~Wysocki and B.~Xia and L.~Xue and C.~Xu and Q.~Xu and S.~Yalcin and Y.L.~Yamaguchi and H.~Yamamoto and A.~Yanovich and S.~Yokkaichi and I.~Yoon and J.H.~Yoo and I.~Younus and Z.~You and I.E.~Yushmanov and H.~Yu and W.A.~Zajc and A.~Zelenski and S.~Zhou and L.~Zou}, title = {{M}easurement of inclusive jet cross section and substructure in $p$$+$$p$ collisions at $\sqrt{s_{_{{NN}}}}=200$ {G}e{V}}, year = {2024}, eprint = {2408.11144}, note = {arXiv:2408.11144v1} }
PDF
The jet cross-section and jet-substructure observables in $p$$+$$p$ collisions at $\sqrt{s}=200$ GeV were measured by the PHENIX Collaboration at the Relativistic Heavy Ion Collider (RHIC). Jets are reconstructed from charged-particle tracks and electromagnetic-calorimeter clusters using the anti-$k_{t}$ algorithm with a jet radius $R=0.3$ for jets with transverse momentum within $8.0<p_T<40.0$ GeV/$c$ and pseudorapidity $|\eta|<0.15$. Measurements include the jet cross section, as well as distributions of SoftDrop-groomed momentum fraction ($z_g$), charged-particle transverse momentum with respect to jet axis ($j_T$), and radial distributions of charged particles within jets ($r$). Also meaureed was the distribution of $\xi=-ln(z)$, where $z$ is the fraction of the jet momentum carried by the charged particle. The measurements are compared to theoretical next-to and next-to-next-to-leading-order calculatios, PYTHIA event generator, and to other existing experimental results. Indicated from these meaurements is a lower particle multiplicity in jets at RHIC energies when compared to models. Also noted are implications for future jet measurements with sPHENIX at RHIC as well as at the future Election-Ion Collider.
Measurement of branching fractions, CP asymmetry, and isospin asymmetry for $\boldsymbol{B\rightarrow\rho\gamma}$ decays using Belle and Belle II data
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, et al (390)
Jul 15 2024 hep-ex arXiv:2407.08984v1

@misc{2407.08984, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and L.~Bierwirth and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-K.~Choi and S.~Choudhury and L.~Corona and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and H.~Hayashii and S.~Hazra and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and H.~Junkerkalefeld and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and Y.~Li and Y.~B.~Li and J.~Libby and M.~H.~Liu and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and C.~Miller and M.~Mirra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and M.~Nakao and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and M.~Neu and C.~Niebuhr and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Panta and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and A.~J.~Schwartz and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~P.~Shen and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and F.~Tenchini and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and S.~Watanuki and C.~Wessel and J.~Wiechczynski and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and L.~Zani and B.~Zhang and Y.~Zhang and V.~Zhilich and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova}, title = {{M}easurement of branching fractions, {CP} asymmetry, and isospin asymmetry for $\boldsymbol{{B}\rightarrow\rho\gamma}$ decays using {B}elle and {B}elle {II} data}, year = {2024}, eprint = {2407.08984}, note = {arXiv:2407.08984v1} }
PDF
We present measurements of $B^{+}\rightarrow\rho^{+}\gamma$ and $B^{0}\rightarrow\rho^{0}\gamma$ decays using a combined data sample of $772 \times 10^6$ $B\overline{B}$ pairs collected by the Belle experiment and $387\times 10^6$ $B\overline{B}$ pairs collected by the Belle II experiment in $e^{+}e^{-}$ collisions at the $\Upsilon (4S)$ resonance. After an optimized selection, a simultaneous fit to the Belle and Belle II data sets yields $114\pm 12$ $B^{+}\rightarrow\rho^{+}\gamma$ and $99\pm 12$ $B^{0}\rightarrow\rho^{0}\gamma$ decays. The measured branching fractions are $(13.1^{+2.0 +1.3}_{-1.9 -1.2})\times 10^{-7}$ and $(7.5\pm 1.3^{+1.0}_{-0.8})\times 10^{-7}$ for $B^{+}\rightarrow\rho^{+}\gamma$ and $B^{0}\rightarrow\rho^{0}\gamma$ decays, respectively, where the first uncertainty is statistical and the second is systematic. We also measure the isospin asymmetry $A_{\rm I}(B\rightarrow\rho\gamma)=(10.9^{+11.2 +7.8}_{-11.7 -7.3})\%$ and the direct CP asymmetry $A_{CP}(B^{+}\rightarrow\rho^{+}\gamma)=(-8.2\pm 15.2^{+1.6}_{-1.2})\%$.
Measurement of $CP$ asymmetries in $B^0 \to K^0_S \pi^0 \gamma$ decays at Belle II
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, et al (419)
Jul 15 2024 hep-ex arXiv:2407.09139v1

@misc{2407.09139, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and L.~Bierwirth and T.~Bilka and S.~Bilokin and D.~Biswas and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Boschetti and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and C.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and J.~X.~Cui and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and D.~Dorner and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and K.~Dugic and G.~Dujany and P.~Ecker and M.~Eliachevitch and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and K.~Hara and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and H.~Junkerkalefeld and M.~Kaleta and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and Y.~Kulii and J.~Kumar and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and P.~Leo and D.~Levit and C.~Li and L.~K.~Li and S.~X.~Li and Y.~Li and Y.~B.~Li and J.~Libby and Y.-R.~Lin and M.~H.~Liu and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and C.~Miller and M.~Mirra and S.~Mitra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and M.~Nakao and H.~Nakazawa and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and M.~Neu and C.~Niebuhr and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Panta and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and I.~Prudiiev and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and K.~Ravindran and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and A.~J.~Schwartz and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and C.~Wessel and E.~Won and Y.~Xie and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and F.~Zeng and B.~Zhang and Y.~Zhang and V.~Zhilich and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{M}easurement of ${CP}$ asymmetries in ${B}^0 \to {K}^0_{S} \pi^0 \gamma$ decays at {B}elle {II}}, year = {2024}, eprint = {2407.09139}, note = {arXiv:2407.09139v1} }
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We report measurements of time-dependent $CP$ asymmetries in $B^0 \to K^0_S \pi^0 \gamma$ decays based on a data sample of $(388\pm6)\times10^6$ $B\bar{B}$ events collected at the $\Upsilon(4S)$ resonance with the Belle II detector. The Belle II experiment operates at the SuperKEKB asymmetric-energy $e^+e^-$ collider. We measure decay-time distributions to determine $CP$-violating parameters $S$ and $C$. We determine these parameters for two ranges of $K^0_S \pi^0$ invariant mass: $m(K^0_S \pi^0)\in (0.8, 1.0)$ $GeV/c^2$, which is dominated by $B^0 \to K^{*0} (\to K^0_S \pi^0) \gamma$ decays, and a complementary region $m(K^0_S \pi^0)\in (0.6, 0.8)\cup(1.0, 1.8)$ $GeV/c^2$. Our results have improved precision as compared to previous measurements and are consistent with theory predictions.
Search for the baryon number and lepton number violating decays $\tau^-\to \Lambda\pi^-$ and $\tau^-\to \bar{\Lambda}\pi^-$ at Belle II
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Althubiti, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, et al (354)
Jul 09 2024 hep-ex arXiv:2407.05117v1

@misc{2407.05117, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Althubiti and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and L.~Bierwirth and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and J.~Borah and A.~Boschetti and A.~Bozek and P.~Branchini and T.~E.~Browder and A.~Budano and S.~Bussino and Q.~Campagna and M.~Campajola and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and R.~Cheaib and P.~Cheema and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and J.~X.~Cui and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dubey and G.~Dujany and P.~Ecker and D.~Epifanov and J.~Eppelt and P.~Feichtinger and T.~Ferber and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and P.~Gironella and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and W.~Gradl and E.~Graziani and D.~Greenwald and Z.~Gruberová and K.~Gudkova and I.~Haide and S.~Halder and K.~Hara and C.~Harris and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and R.~Hoppe and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and H.~Junkerkalefeld and J.~Kandra and K.~H.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Kiesling and D.~Y.~Kim and J.-Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and P.~Križan and P.~Krokovny and T.~Kuhr and R.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and M.~J.~Lee and P.~Leo and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and W.~Z.~Li and Y.~Li and Y.~B.~Li and J.~Libby and J.~Lin and M.~H.~Liu and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and C.~Martellini and A.~Martens and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and C.~Miller and M.~Mirra and S.~Mitra and S.~Mondal and S.~Moneta and H.-G.~Moser and R.~Mussa and I.~Nakamura and M.~Nakao and Y.~Nakazawa and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and M.~Nayak and G.~Nazaryan and M.~Neu and C.~Niebuhr and S.~Nishida and S.~Ogawa and H.~Ono and P.~Pakhlov and E.~Paoloni and S.~Pardi and J.~Park and K.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and L.~Reuter and I.~Ripp-Baudot and G.~Rizzo and J.~M.~Roney and N.~Rout and S.~Sandilya and L.~Santelj and V.~Savinov and B.~Scavino and M.~Schnepf and C.~Schwanda and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and C.~P.~Shen and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and W.~Song and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and Y.~Sue and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and N.~Suwonjandee and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Ueda and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and Z.~Wang and A.~Warburton and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and L.~Zani and B.~Zhang and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{S}earch for the baryon number and lepton number violating decays $\tau^-\to \{L}ambda\pi^-$ and $\tau^-\to \bar{\{L}ambda}\pi^-$ at {B}elle {II}}, year = {2024}, eprint = {2407.05117}, note = {arXiv:2407.05117v1} }
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We present a search for the baryon number $B$ and lepton number $L$ violating decays $\tau^- \rightarrow \Lambda \pi^-$ and $\tau^- \rightarrow \bar{\Lambda} \pi^-$ produced from the $e^+e^-\to \tau^+\tau^-$ process, using a 364 fb$^{-1}$ data sample collected by the Belle~II experiment at the SuperKEKB collider. No evidence of signal is found in either decay mode, which have $|\Delta(B-L)|$ equal to $2$ and $0$, respectively. Upper limits at 90\% credibility level on the branching fractions of $\tau^- \rightarrow \Lambda\pi^-$ and $\tau^- \rightarrow \bar{\Lambda}\pi^-$ are determined to be $4.7 \times 10^{-8}$ and $4.3 \times 10^{-8}$, respectively.
Evidence of $h_{b}(\text{2P}) \to \Upsilon(\text{1S})\eta$ decay and search for $h_{b}(\text{1P,2P}) \to \Upsilon(\text{1S})\pi^0$ with the Belle detector
Belle Collaboration, E. Kovalenko, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, R. Ayad, V. Babu, Sw. Banerjee, K. Belous, J. Bennett, M. Bessner, T. Bilka, D. Biswas, A. Bobrov, D. Bodrov, A. Bondar, A. Bozek, M. Bračko, P. Branchini, et al (147)
Jul 08 2024 hep-ex arXiv:2407.03783v1

@misc{2407.03783, author = {Belle Collaboration and E.~Kovalenko and I.~Adachi and H.~Aihara and D.~M.~Asner and T.~Aushev and R.~Ayad and V.~Babu and Sw.~Banerjee and K.~Belous and J.~Bennett and M.~Bessner and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bondar and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and M.-C.~Chang and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and N.~Dash and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and Z.~Doležal and T.~V.~Dong and S.~Dubey and P.~Ecker and D.~Epifanov and D.~Ferlewicz and B.~G.~Fulsom and R.~Garg and V.~Gaur and A.~Garmash and A.~Giri and P.~Goldenzweig and E.~Graziani and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and T.~Hara and K.~Hayasaka and S.~Hazra and W.-S.~Hou and C.-L.~Hsu and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and Y.~Jin and T.~Kawasaki and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and A.~Korobov and S.~Korpar and P.~Križan and P.~Krokovny and T.~Kuhr and R.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and T.~Lam and D.~Levit and L.~K.~Li and L.~Li Gioi and J.~Libby and D.~Liventsev and Y.~Ma and A.~Martini and M.~Masuda and T.~Matsuda and D.~Matvienko and F.~Meier and M.~Merola and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and R.~Mussa and I.~Nakamura and M.~Nakao and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and M.~Niiyama and S.~Nishida and S.~Ogawa and H.~Ono and G.~Pakhlova and S.~Pardi and J.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and N.~Rout and G.~Russo and S.~Sandilya and L.~Santelj and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and W.~Shan and C.~Sharma and J.-G.~Shiu and B.~Shwartz and A.~Sokolov and E.~Solovieva and M.~Starič and M.~Sumihama and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and R.~Tiwary and M.~Uchida and Y.~Unno and S.~Uno and Y.~Usov and A.~Vinokurova and D.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and E.~Won and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and Y.~Yook and C.~Z.~Yuan and Z.~P.~Zhang and V.~Zhilich}, title = {{E}vidence of $h_{b}(\text{2{P}}) \to \{U}psilon(\text{1{S}})\eta$ decay and search for $h_{b}(\text{1{P},2{P}}) \to \{U}psilon(\text{1{S}})\pi^0$ with the {B}elle detector}, year = {2024}, eprint = {2407.03783}, note = {arXiv:2407.03783v1} }
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We report the first evidence for the $h_{b}(\text{2P}) \to \Upsilon(\text{1S})\eta$ transition with a significance of $3.5$ standard deviations. The decay branching fraction is measured to be $\mathcal{B}[h_{b}(\text{2P}) \to \Upsilon(\text{1S})\eta]=(7.1 ~^{+3.7} _{-3.2}\pm 0.8)\times10^{-3}$, which is noticeably smaller than expected. We also set upper limits on $\pi^0$ transitions of $\mathcal{B}[h_{b}(\text{2P}) \to \Upsilon(\text{1S})\pi^0] < 1.8\times10^{-3}$, and $\mathcal{B}[h_{b}(\text{1P})\to \Upsilon(\text{1S})\pi^0] < 1.8\times10^{-3}$, at the $90\%$ confidence level. These results are obtained with a $131.4$~fb$^{-1}$ data sample collected near the $\Upsilon(\text{5S})$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider.
Measurement of the integrated luminosity of data samples collected during 2019-2022 by the Belle II experiment
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, N. Althubiti, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, et al (387)
Jul 02 2024 hep-ex arXiv:2407.00965v2

@misc{2407.00965, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Althubiti and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and L.~Bierwirth and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and J.~Borah and A.~Boschetti and A.~Bozek and P.~Branchini and T.~E.~Browder and A.~Budano and S.~Bussino and Q.~Campagna and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and J.~X.~Cui and S.~Das and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and K.~Dort and D.~Dossett and S.~Dubey and K.~Dugic and G.~Dujany and P.~Ecker and D.~Epifanov and J.~Eppelt and P.~Feichtinger and T.~Ferber and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and P.~Gironella and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and K.~Gudkova and I.~Haide and S.~Halder and Y.~Han and K.~Hara and T.~Hara and C.~Harris and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and R.~Hoppe and P.~Horak and C.-L.~Hsu and T.~Humair and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and M.~Kaleta and D.~Kalita and J.~Kandra and K.~H.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and J.-Y.~Kim and K.-H.~Kim and Y.-K.~Kim and Y.~J.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and P.~Križan and P.~Krokovny and T.~Kuhr and R.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and M.~J.~Lee and C.~Lemettais and P.~Leo and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and W.~Z.~Li and Y.~Li and Y.~B.~Li and Y.~P.~Liao and J.~Libby and J.~Lin and M.~H.~Liu and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and C.~Martellini and A.~Martens and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and C.~Miller and M.~Mirra and S.~Mitra and K.~Miyabayashi and G.~B.~Mohanty and S.~Mondal and S.~Moneta and H.-G.~Moser and R.~Mussa and I.~Nakamura and M.~Nakao and Y.~Nakazawa and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and M.~Nayak and G.~Nazaryan and M.~Neu and C.~Niebuhr and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and P.~Pakhlov and G.~Pakhlova and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and J.~Park and K.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and L.~Reuter and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and S.~Sandilya and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and C.~Sfienti and W.~Shan and C.~Sharma and C.~P.~Shen and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and W.~Song and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and Y.~Sue and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and N.~Suwonjandee and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and E.~Torassa and K.~Trabelsi and I.~Ueda and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and A.~Vossen and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and Z.~Wang and A.~Warburton and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and L.~Zani and B.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{M}easurement of the integrated luminosity of data samples collected during 2019-2022 by the {B}elle {II} experiment}, year = {2024}, eprint = {2407.00965}, note = {arXiv:2407.00965v2} }
PDF
A series of data samples was collected with the Belle~II detector at the SuperKEKB collider from March 2019 to June 2022. We determine the integrated luminosities of these data samples using three distinct methodologies involving Bhabha ($e^+e^- \to e^+e^-(n\gamma)$), digamma ($e^+e^- \to \gamma\gamma(n\gamma)$), and dimuon ($e^+e^- \to \mu^+ \mu^- (n\gamma)$) events. The total integrated luminosity obtained with Bhabha, digamma, and dimuon events is (426.88 $\pm$ 0.03 $\pm$ 2.61)~fb$^{-1}$, (429.28 $\pm$ 0.03 $\pm$ 2.62)~fb$^{-1}$, and (423.99 $\pm$ 0.04 $\pm$ 3.83)~fb$^{-1}$, where the first uncertainties are statistical and the second are systematic. The resulting total integrated luminosity obtained from the combination of the three methods is (427.87 $\pm$ 2.01)~fb$^{-1}$.
Study of $\chi_{bJ}(2P)\to\omega\Upsilon(1S)$ at Belle
Belle Collaboration, Z. S. Stottler, T. K. Pedlar, B. G. Fulsom, I. Adachi, K. Adamczyk, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, T. Aushev, R. Ayad, V. Babu, Sw. Banerjee, M. Bauer, P. Behera, K. Belous, J. Bennett, F. Bernlochner, M. Bessner, et al (162)
Jul 02 2024 hep-ex arXiv:2407.00879v3

@misc{2407.00879, author = {Belle Collaboration and Z.~S.~Stottler and T.~K.~Pedlar and B.~G.~Fulsom and I.~Adachi and K.~Adamczyk and H.~Aihara and S.~Al Said and D.~M.~Asner and H.~Atmacan and T.~Aushev and R.~Ayad and V.~Babu and Sw.~Banerjee and M.~Bauer and P.~Behera and K.~Belous and J.~Bennett and F.~Bernlochner and M.~Bessner and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and G.~Bonvicini and J.~Borah and A.~Bozek and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and L.~Cao and D.~Červenkov and M.-C.~Chang and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and D.~Cinabro and S.~Das and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and Z.~Doležal and T.~V.~Dong and S.~Dubey and P.~Ecker and D.~Epifanov and T.~Ferber and D.~Ferlewicz and V.~Gaur and A.~Garmash and A.~Giri and P.~Goldenzweig and E.~Graziani and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and T.~Hara and K.~Hayasaka and S.~Hazra and M.~T.~Hedges and D.~Herrmann and W.-S.~Hou and C.-L.~Hsu and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and W.~W.~Jacobs and S.~Jia and Y.~Jin and A.~B.~Kaliyar and T.~Kawasaki and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and P.~Kodyš and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Križan and P.~Krokovny and T.~Kuhr and M.~Kumar and R.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and T.~Lam and M.~Laurenza and S.~C.~Lee and D.~Levit and P.~Lewis and L.~K.~Li and J.~Libby and K.~Lieret and D.~Liventsev and T.~Luo and Y.~Ma and M.~Masuda and S.~K.~Maurya and F.~Meier and M.~Merola and K.~Miyabayashi and G.~B.~Mohanty and I.~Nakamura and M.~Nakao and A.~Natochii and L.~Nayak and N.~K.~Nisar and S.~Nishida and K.~Ogawa and S.~Ogawa and H.~Ono and P.~Oskin and P.~Pakhlov and G.~Pakhlova and T.~Pang and S.~Pardi and J.~Park and S.-H.~Park and S.~Patra and S.~Paul and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and N.~Rout and G.~Russo and S.~Sandilya and A.~Sangal and L.~Santelj and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and W.~Shan and M.~Shapkin and C.~Sharma and J.-G.~Shiu and A.~Sokolov and E.~Solovieva and M.~Starič and M.~Sumihama and W.~Sutcliffe and M.~Takizawa and K.~Tanida and F.~Tenchini and R.~Tiwary and M.~Uchida and Y.~Unno and S.~Uno and S.~E.~Vahsen and G.~Varner and D.~Wang and E.~Wang and M.-Z.~Wang and S.~Watanuki and O.~Werbycka and E.~Won and B.~D.~Yabsley and W.~Yan and J.~H.~Yin and C.~Z.~Yuan and L.~Yuan and Y.~Yusa and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{S}tudy of $\chi_{b{J}}(2{P})\to\omega\{U}psilon(1{S})$ at {B}elle}, year = {2024}, eprint = {2407.00879}, note = {arXiv:2407.00879v3} }
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We report a study of the hadronic transitions $\chi_{bJ}(2P)\to\omega\Upsilon(1S)$, with $\omega\to\pi^{+}\pi^{-}\pi^{0}$, using $28.2\times10^6~\Upsilon(3S)$ mesons recorded by the Belle detector. We present the first evidence for the near--threshold transition $\chi_{b0}(2P)\to\omega\Upsilon(1S)$, the analog of the charm sector decay $\chi_{c1}(3872)\to\omega J/\psi$, with a branching fraction of $B\big(\chi_{b0}(2P)\to\omega\Upsilon(1S)\big) = \big(0.55\pm0.19\pm0.07\big)\%$. We also obtain branching fractions of $B\big(\chi_{b1}(2P)\to\omega\Upsilon(1S)\big) = \big(2.39{}^{+0.20}_{-0.19}\pm0.24\big)\%$ and $B\big(\chi_{b2}(2P)\to\omega\Upsilon(1S)\big) = \big(0.47{}^{+0.13}_{-0.12}\pm0.06\big)\%$, confirming the measurement of the $\omega$ transitions of the $J=1,2~P$--wave states. The ratio for the $J=2$ to $J=1$ transitions is also measured and found to differ by 3.3 standard deviations from the expected value in the QCD multipole expansion.
The Belle II Detector Upgrades Framework Conceptual Design Report
H. Aihara, A. Aloisio, D. P. Auguste, M. Aversano, M. Babeluk, S. Bahinipati, Sw. Banerjee, M. Barbero, J. Baudot, A. Beaubien, F. Becherer, T. Bergauer, F.U. Bernlochner., V. Bertacchi, G. Bertolone, C. Bespin, M. Bessner, S. Bettarini, A. J. Bevan, B. Bhuyan, et al (191)
Jul 01 2024 hep-ex physics.ins-det arXiv:2406.19421v2

@misc{2406.19421, author = {H.~Aihara and A.~Aloisio and D.~P.~Auguste and M.~Aversano and M.~Babeluk and S.~Bahinipati and Sw.~Banerjee and M.~Barbero and J.~Baudot and A.~Beaubien and F.~Becherer and T.~Bergauer and F.U.~Bernlochner.~and V.~Bertacchi and G.~Bertolone and C.~Bespin and M.~Bessner and S.~Bettarini and A.~J.~Bevan and B.~Bhuyan and M.~Bona and J.~F.~Bonis and J.~Borah and F.~Bosi and R.~Boudagga and A.~Bozek and M.~Bračko and P.~Branchini and P.~Breugnon and T.~E.~Browder and Y.~Buch and A.~Budano and M.~Campajola and G.~Casarosa and C.~Cecchi and C.~Chen and S.~Choudhury and L.~Corona and G.~de Marino and G.~De Nardo and G.~De Pietro and R.~de Sangro and S.~Dey and J.~C.~Dingfelder and T.~V.~Dong and A.~Dorokhov and G.~Dujany and D.~Epifanov and L.~Federici and T.~Ferber and T.~Fillinger and Ch.~Finck and G.~Finocchiaro and F.~Forti and A.~Frey and M.~Friedl and A.~Gabrielli and L.~Gaioni and Y.~Gao and G.~Gaudino and V.~Gaur and A.~Gaz and R.~Giordano and S.~Giroletti and B.~Gobbo and R.~Godang and I.~Haide and Y.~Han and K.~Hara and K.~Hayasaka and C.~Hearty and A.~Heidelbach and T.~Higuchi and A.~Himmi and M.~Hoferichter and D.~A.~Howgill and C.~Hu-Guo and T.~Iijima and K.~Inami and C.~Irmler and A.~Ishikawa and R.~Itoh and D.~Iyer and W.~W.~Jacobs and D.~E.~Jaffe and Y.~Jin and T.~Junginger and J.~Kandra and K.~Kojima and T.~Koga and A.~A.~Korobov and S.~Korpar and P.~Križan and H.~Krüger and T.~Kuhr and A.~Kumar and R .Kumar and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and C.~Lacasta and Y.~-T.~Lai and K.~Lalwani and T.~Lam and L.~Lanceri and M.~J.~Lee and C.~Leonidopoulos and D.~Levit and P.~M.~Lewis and J.~F.~Libby and Q.~Y.~Liu and Z.~Y.~Liu and D.~Liventsev and S.~Longo and G.~Mancinelli and M.~Manghisoni and E.~Manoni and C.~Marinas and C.~Martellini and A.~Martens and M.~Massa and L.~Massaccesi and F.~Mawas and J.~Mazorra and M.~Merola and C.~Miller and M.~Minuti and R.~Mizuk and A.~Modak and A.~Moggi and G.~B.~Mohanty and S.~Moneta and Th.~Muller and I.~Na and K.~R.~Nakamura and M.~Nakao and A.~Natochii and C.~Niebuhr and S.~Nishida and A.~Novosel and P.~Pangaud and B.~Parker and A.~Passeri and A.~Passeri and T.~K.~Pedlar and Y.~Peinaud and Y.~Peng and R.~Peschke and R.~Pestotnik and T.~H.~Pham and M.~Piccolo and L.~E.~Piilonen and S.~Prell and M.~V.~Purohit and L.~Ratti and V.~Re and L.~Reuter and E.~Riceputi and I.~Ripp-Baudot and G.~Rizzo and J.~M.~Roney and A.~Russo and S.~Sandilya and L.~Santelj and V.~Savinov and B.~Scavino and L.~Schall and G.~Schnell and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and A.~Seljak and J.~Serrano and J.-G.~Shiu and B.~Shwartz and F.~Simon and A.~Soffer and W.~M.~Song and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and S.~Tanaka and N.~Taniguchi and V.~Teotia and N.~Tessema and R.~Thalmeier and E.~Torassa and K.~Trabelsi and F.~F.~Trantou and G.~Traversi and P.~Urquijo and S.~E.~Vahsen and I.~Valin and G.~S.~Varner and K.~E.~Varvell and L.~Vitale and V.~Vobbilisetti and X.~L.~Wang and C.~Wessel and H.U.~Wienands and E.~Won and D.~Xu and S.~Yamada and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and L.~Zani and Z.~Zong and S.~Zou}, title = {{T}he {B}elle {II} {D}etector {U}pgrades {F}ramework {C}onceptual {D}esign {R}eport}, year = {2024}, eprint = {2406.19421}, note = {arXiv:2406.19421v2} }
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We describe the planned near-term and potential longer-term upgrades of the Belle II detector at the SuperKEKB electron-positron collider operating at the KEK laboratory in Tsukuba, Japan. These upgrades will allow increasingly sensitive searches for possible new physics beyond the Standard Model in flavor, tau, electroweak and dark sector physics that are both complementary to and competitive with the LHC and other experiments.
Measurement of the energy dependence of the $e^+e^- \to B\bar{B}$, $B\bar{B}{}^*$, and $B^*\bar{B}{}^*$ cross sections at Belle~II
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Althubiti, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, et al (449)
May 30 2024 hep-ex arXiv:2405.18928v2

@misc{2405.18928, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Althubiti and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and L.~Bierwirth and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Boschetti and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and Q.~Campagna and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and P.~Cheema and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and J.~X.~Cui and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and D.~Dorner and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and K.~Dugic and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and K.~Hara and T.~Hara and C.~Harris and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and H.~Kakuno and M.~Kaleta and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and Y.~Kulii and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and P.~Leitl and P.~Leo and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~Li and Y.~B.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and A.~Lozar and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and S.~Mitra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and M.~Nakao and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and M.~Neu and C.~Niebuhr and N.~K.~Nisar and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and J.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and S.~Privalov and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and K.~Ravindran and M.~Reif and S.~Reiter and M.~Remnev and L.~Reuter and I.~Ripp-Baudot and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and S.~Schneider and M.~Schnepf and C.~Schwanda and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and C.~P.~Shen and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and K.~Smith and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and Y.~Sue and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and L.~Zani and F.~Zeng and B.~Zhang and Y.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{M}easurement of the energy dependence of the $e^+e^- \to {B}\bar{{B}}$, ${B}\bar{{B}}{}^*$, and ${B}^*\bar{{B}}{}^*$ cross sections at {B}elle~{II}}, year = {2024}, eprint = {2405.18928}, note = {arXiv:2405.18928v2} }
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We report measurements of the $e^+e^- \to B\bar{B}$, $B\bar{B}{}^*$, and $B^*\bar{B}{}^*$ cross sections at four energies, 10653, 10701, 10746 and 10805 MeV, using data collected by the Belle~II experiment. We reconstruct one $B$ meson in a large number of hadronic final states and use its momentum to identify the production process. In the first $2-5$ MeV above $B^*\bar{B}{}^*$ threshold, the $e^+e^- \to B^*\bar{B}{}^*$ cross section increases rapidly. This may indicate the presence of a pole close to the threshold.
Test of light-lepton universality in $\tau$ decays with the Belle II experiment
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, M. Barrett, et al (411)
May 24 2024 hep-ex arXiv:2405.14625v2

@misc{2405.14625, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and F.~Bianchi and L.~Bierwirth and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and J.~Borah and A.~Boschetti and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and L.~Corona and J.~X.~Cui and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and D.~Dorner and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and K.~Dugic and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and H.~Junkerkalefeld and M.~Kaleta and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and Y.~Kulii and J.~Kumar and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and P.~Leo and C.~Lemettais and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~Li and Y.~B.~Li and J.~Libby and Z.~Liptak and M.~H.~Liu and Q.~Y.~Liu and Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and C.~Miller and M.~Mirra and S.~Mitra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and M.~Nakao and H.~Nakazawa and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and M.~Neu and C.~Niebuhr and J.~Ninkovic and S.~Nishida and A.~Novosel and S.~Ogawa and Y.~Onishchuk and H.~Ono and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Panta and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and I.~Prudiiev and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and Y.~Sue and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and N.~Suwonjandee and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and F.~Zeng and B.~Zhang and Y.~Zhang and V.~Zhilich and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{T}est of light-lepton universality in $\tau$ decays with the {B}elle {II} experiment}, year = {2024}, eprint = {2405.14625}, howpublished = {Journal of High Energy Physics 08 (2024) 205}, doi = {10.1007/JHEP08(2024)205}, note = {arXiv:2405.14625v2} }
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We present a measurement of the ratio $R_\mu = \mathcal{B}(\tau^-\to \mu^-\bar\nu_\mu\nu_\tau) / \mathcal{B}(\tau^-\to e^-\bar\nu_e\nu_\tau)$ of branching fractions $\mathcal{B}$ of the $\tau$ lepton decaying to muons or electrons using data collected with the Belle II detector at the SuperKEKB $e^+e^-$ collider. The sample has an integrated luminosity of $362\!\pm\!2\,\text{fb}^{-1}$ at a centre-of-mass energy of $10.58\,\text{GeV}$. Using an optimised event selection, a binned maximum likelihood fit is performed using the momentum spectra of the electron and muon candidates. The result, $R_\mu = 0.9675 \pm 0.0007 \pm 0.0036$, where the first uncertainty is statistical and the second is systematic, is the most precise to date. It provides a stringent test of the light-lepton universality, translating to a ratio of the couplings of the muon and electron to the $W$ boson in $\tau$ decays of $0.9974 \pm 0.0019$, in agreement with the standard model expectation of unity.
Search for Two-Body $B$ Meson Decays to $\Lambda^{0}$ and $\Omega^{(*)0}_{c}$
Belle Collaboration, V. Savinov, I. Adachi, J. K. Ahn, H. Aihara, D. M. Asner, H. Atmacan, R. Ayad, Sw. Banerjee, J. Bennett, M. Bessner, V. Bhardwaj, D. Biswas, A. Bobrov, D. Bodrov, J. Borah, M. Bračko, P. Branchini, T. E. Browder, A. Budano, et al (129)
May 21 2024 hep-ex arXiv:2405.11390v1

@misc{2405.11390, author = {Belle Collaboration and V.~Savinov and I.~Adachi and J.~K.~Ahn and H.~Aihara and D.~M.~Asner and H.~Atmacan and R.~Ayad and Sw.~Banerjee and J.~Bennett and M.~Bessner and V.~Bhardwaj and D.~Biswas and A.~Bobrov and D.~Bodrov and J.~Borah and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and D.~Červenkov and M.-C.~Chang and P.~Chang and B.~G.~Cheon and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and N.~Dash and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and S.~Dubey and P.~Ecker and D.~Epifanov and D.~Ferlewicz and B.~G.~Fulsom and V.~Gaur and A.~Giri and P.~Goldenzweig and E.~Graziani and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and H.~Hayashii and S.~Hazra and M.~T.~Hedges and W.-S.~Hou and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and Y.~Jin and D.~Kalita and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Križan and P.~Krokovny and T.~Kuhr and R.~Kumar and T.~Kumita and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and T.~Lam and J.~S.~Lange and L.~K.~Li and Y.~Li and Y.~B.~Li and L.~Li Gioi and J.~Libby and D.~Liventsev and T.~Luo and Y.~Ma and M.~Masuda and T.~Matsuda and S.~K.~Maurya and F.~Meier and M.~Merola and I.~Nakamura and M.~Nakao and Z.~Natkaniec and L.~Nayak and M.~Nayak and S.~Nishida and S.~Ogawa and H.~Ono and P.~Pakhlov and G.~Pakhlova and S.~Pardi and H.~Park and J.~Park and S.-H.~Park and A.~Passeri and S.~Patra and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and G.~Russo and S.~Sandilya and L.~Santelj and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and W.~Shan and C.~Sharma and J.-G.~Shiu and E.~Solovieva and M.~Starič and M.~Sumihama and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and R.~Tiwary and K.~Trabelsi and M.~Uchida and Y.~Unno and S.~Uno and K.~E.~Varvell and E.~Wang and S.~Watanuki and E.~Won and X.~Xu and B.~D.~Yabsley and W.~Yan and J.~H.~Yin and C.~Z.~Yuan and L.~Yuan and Y.~Yusa and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{S}earch for {T}wo-{B}ody ${B}$ {M}eson {D}ecays to $\{L}ambda^{0}$ and $\{O}mega^{(*)0}_{c}$}, year = {2024}, eprint = {2405.11390}, note = {arXiv:2405.11390v1} }
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We report the results of the first search for Standard Model and baryon-number-violating two-body decays of the neutral $B$ mesons to $\Lambda^{0}$ and $\Omega^{(*)0}_c$ using 711~${\rm fb^{-1}}$ of data collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We observe no evidence of signal from any such decays and set 95\% confidence-level upper limits on the products of $B^0$ and $\bar{B}^0$ branching fractions for these two-body decays with $\mathcal{B}(\Omega_{c}^{0} \to \pi^+ \Omega^-)$ in the range between 9.5~$\times 10^{-8}$ and 31.2~$\times 10^{-8}$.
Determination of the CKM angle $\phi_{3}$ from a combination of Belle and Belle II results
Belle, Belle II Collaborations, I. Adachi, L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, S. Al Said, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, et al (381)
Apr 23 2024 hep-ex arXiv:2404.12817v2

@misc{2404.12817, author = {Belle and Belle II Collaborations and I.~Adachi and L.~Aggarwal and H.~Aihara and N.~Akopov and A.~Aloisio and S.~Al Said and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and K.~Belous and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and L.~Bierwirth and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and L.~Corona and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and H.~Hayashii and S.~Hazra and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and H.~Junkerkalefeld and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and M.~J.~Lee and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and Y.~Li and Y.~B.~Li and J.~Libby and M.~H.~Liu and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and C.~Miller and M.~Mirra and K.~Miyabayashi and H.~Miyake and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and M.~Nakao and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and M.~Neu and C.~Niebuhr and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Panta and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and G.~Schnell and C.~Schwanda and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and N.~Suwonjandee and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and B.~Zhang and Y.~Zhang and V.~Zhilich and Q.~D.~Zhou and V.~I.~Zhukova}, title = {{D}etermination of the {CKM} angle $\phi_{3}$ from a combination of {B}elle and {B}elle {II} results}, year = {2024}, eprint = {2404.12817}, note = {arXiv:2404.12817v2} }
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We report a determination of the CKM angle $\phi_{3}$, also known as $\gamma$, from a combination of measurements using samples of up to 711~fb$^{-1}$ from the Belle experiment and up to 362~fb$^{-1}$ from the Belle II experiment. We combine results from analyses of $B^+\to DK^+, B^+\to D\pi^+$, and $B^+ \to D^{*}K^+$ decays, where $D$ is an admixture of $D^0$ and $\overline{D}{}^{0}$ mesons, in a likelihood fit to obtain $\phi_{3} = (78.6^{+7.2}_{-7.3})^{\circ}$. We also briefly discuss the interpretation of this result.
Search for Rare $b \to d\ell^+\ell^-$ Transitions at Belle
Belle, Belle II Collaborations, I. Adachi, L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, S. Al Said, D. M. Asner, H. Atmacan, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, M. Barrett, et al (375)
Apr 15 2024 hep-ex arXiv:2404.08133v2

@misc{2404.08133, author = {Belle and Belle II Collaborations and I.~Adachi and L.~Aggarwal and H.~Aihara and N.~Akopov and A.~Aloisio and S.~Al Said and D.~M.~Asner and H.~Atmacan and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and A.~Beaubien and F.~Becherer and J.~Becker and K.~Belous and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and F.~Bianchi and L.~Bierwirth and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and C.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and K.~Dugic and G.~Dujany and P.~Ecker and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and H.~Junkerkalefeld and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and Y.~Kulii and J.~Kumar and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and P.~Leo and D.~Levit and P.~M.~Lewis and L.~K.~Li and Y.~Li and Y.~B.~Li and J.~Libby and Q.~Y.~Liu and Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and C.~Marinas and C.~Martellini and T.~Martinov and L.~Massaccesi and M.~Masuda and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and C.~Miller and M.~Mirra and S.~Mitra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and M.~Nakao and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and M.~Neu and J.~Ninkovic and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and F.~Otani and G.~Pakhlova and A.~Panta and S.~Pardi and K.~Parham and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and G.~Schnell and C.~Schwanda and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and M.~E.~Sevior and C.~Sfienti and W.~Shan and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and N.~Suwonjandee and H.~Svidras and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and O.~Tittel and R.~Tiwary and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and L.~Zani and F.~Zeng and B.~Zhang and Y.~Zhang and V.~Zhilich and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{S}earch for {R}are $b \to d\ell^+\ell^-$ {T}ransitions at {B}elle}, year = {2024}, eprint = {2404.08133}, howpublished = {Phys. Rev. Lett. 133, 101804 (2024)}, doi = {10.1103/PhysRevLett.133.101804}, note = {arXiv:2404.08133v2} }
PDF
We present the results of a search for the $b \to d\ell^+\ell^-$ flavor-changing neutral-current rare decays $B^{+, 0} \to (\eta, \omega, \pi^{+,0}, \rho^{+, 0}) e^+e^-$ and $B^{+, 0} \to (\eta, \omega, \pi^{0}, \rho^{+}) \mu^+\mu^-$ using a $711$ fb$^{-1}$ data sample that contains $772 \times 10^{6}$ $B\overline{B}$ events. The data were collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We find no evidence for signal and set upper limits on branching fractions at the $90\%$ confidence level in the range $(3.8 - 47) \times 10^{-8}$ depending on the decay channel. The obtained limits are the world's best results. This is the first search for the channels $B^{+, 0} \to (\omega, \rho^{+,0}) e^+e^-$ and $B^{+, 0} \to (\omega, \rho^{+})\mu^+\mu^-$.
Angular analysis of $B \to K^* e^+ e^-$ in the low-$q^2$ region with new electron identification at Belle
Belle Collaboration, D. Ferlewicz, P. Urquijo, I. Adachi, K. Adamczyk, H. Aihara, D. M. Asner, H. Atmacan, R. Ayad, V. Babu, Sw. Banerjee, P. Behera, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, B. Bhuyan, T. Bilka, D. Biswas, D. Bodrov, et al (150)
Apr 02 2024 hep-ex arXiv:2404.00201v3

@misc{2404.00201, author = {Belle Collaboration and D.~Ferlewicz and P.~Urquijo and I.~Adachi and K.~Adamczyk and H.~Aihara and D.~M.~Asner and H.~Atmacan and R.~Ayad and V.~Babu and Sw.~Banerjee and P.~Behera and K.~Belous and J.~Bennett and M.~Bessner and V.~Bhardwaj and B.~Bhuyan and T.~Bilka and D.~Biswas and D.~Bodrov and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and L.~Cao and D.~Červenkov and M.-C.~Chang and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and S.~Das and N.~Dash and G.~de Marino and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and S.~Dubey and P.~Ecker and D.~Epifanov and T.~Ferber and B.~G.~Fulsom and V.~Gaur and A.~Garmash and A.~Giri and P.~Goldenzweig and E.~Graziani and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and M.~T.~Hedges and D.~Herrmann and W.-S.~Hou and C.-L.~Hsu and T.~Iijima and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and S.~Jia and Y.~Jin and A.~B.~Kaliyar and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and T.~Konno and A.~Korobov and S.~Korpar and E.~Kou and E.~Kovalenko and P.~Križan and P.~Krokovny and T.~Kuhr and R.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and T.~Lam and S.~C.~Lee and D.~Levit and P.~Lewis and L.~K.~Li and Y.~B.~Li and L.~Li Gioi and J.~Libby and D.~Liventsev and Y.~Ma and D.~Matvienko and F.~Meier and M.~Merola and F.~Metzner and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and I.~Nakamura and M.~Nakao and A.~Natochii and L.~Nayak and S.~Nishida and S.~Ogawa and H.~Ono and S.~Pardi and J.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and N.~Rout and G.~Russo and S.~Sandilya and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and W.~Shan and C.~Sharma and J.-G.~Shiu and B.~Shwartz and E.~Solovieva and M.~Starič and M.~Sumihama and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and M.~Uchida and Y.~Unno and S.~Uno and Y.~Ushiroda and S.~E.~Vahsen and K.~E.~Varvell and E.~Wang and M.-Z.~Wang and S.~Watanuki and E.~Won and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and C.~Z.~Yuan and L.~Yuan and Y.~Yusa and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{A}ngular analysis of ${B} \to {K}^* e^+ e^-$ in the low-$q^2$ region with new electron identification at {B}elle}, year = {2024}, eprint = {2404.00201}, note = {arXiv:2404.00201v3} }
PDF
We perform an angular analysis of the $B\to K^* e^+ e^-$ decay for the dielectron mass squared, $q^2$, range of $0.0008$ to $1.1200 ~\text{GeV}^2 /c^4$ using the full Belle data set in the $K^{*0} \to K^+ \pi^-$ and $K^{*+} \to K_S^0 \pi^+$ channels, incorporating new methods of electron identification to improve the statistical power of the data set. This analysis is sensitive to contributions from right-handed currents from physics beyond the Standard Model by constraining the Wilson coefficients $\mathcal{C}_7^{(\prime)}$. We perform a fit to the $B\to K^* e^+ e^-$ differential decay rate and measure the imaginary component of the transversality amplitude to be $A_T^{\rm Im} = -1.27 \pm 0.52 \pm 0.12$, and the $K^*$ transverse asymmetry to be $A_T^{(2)} = 0.52 \pm 0.53 \pm 0.11$, with $F_L$ and $A_T^{\rm Re}$ fixed to the Standard Model values. The resulting constraints on the value of $\mathcal{C}_7^{\prime}$ are consistent with the Standard Model within a $2\sigma$ confidence interval.
Search for a pentaquark state decaying into $pJ/\psi$ in $\Upsilon(1,2S)$ inclusive decays at Belle
Belle Collaboration, X. Dong, H. Y. Zhang, X. L. Wang, I. Adachi, J. K. Ahn, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, R. Ayad, S. Bahinipati, Sw. Banerjee, M. Bessner, V. Bhardwaj, D. Biswas, D. Bodrov, A. Bozek, M. Bračko, P. Branchini, et al (144)
Mar 08 2024 hep-ex arXiv:2403.04340v3

@misc{2403.04340, author = {Belle Collaboration and X.~Dong and H.~Y.~Zhang and X.~L.~Wang and I.~Adachi and J.~K.~Ahn and H.~Aihara and S.~Al Said and D.~M.~Asner and H.~Atmacan and R.~Ayad and S.~Bahinipati and Sw.~Banerjee and M.~Bessner and V.~Bhardwaj and D.~Biswas and D.~Bodrov and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and D.~Červenkov and M.-C.~Chang and P.~Chang and B.~G.~Cheon and H.~E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and S.~Das and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and P.~Ecker and D.~Epifanov and T.~Ferber and D.~Ferlewicz and B.~G.~Fulsom and R.~Garg and V.~Gaur and A.~Giri and P.~Goldenzweig and E.~Graziani and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and H.~Hayashii and S.~Hazra and M.~T.~Hedges and W.-S.~Hou and C.-L.~Hsu and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and S.~Jia and Y.~Jin and D.~Kalita and T.~Kawasaki and D.~Y.~Kim and K.-H.~Kim and Y.~J.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Križan and P.~Krokovny and T.~Kuhr and R.~Kumar and T.~Kumita and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and T.~Lam and J.~S.~Lange and D.~Levit and L.~K.~Li and Y.~Li and Y.~B.~Li and L.~Li Gioi and J.~Libby and D.~Liventsev and Y.~Ma and M.~Masuda and T.~Matsuda and S.~K.~Maurya and F.~Meier and M.~Merola and F.~Metzner and K.~Miyabayashi and R.~Mussa and I.~Nakamura and T.~Nakano and M.~Nakao and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and S.~Nishida and S.~Ogawa and H.~Ono and G.~Pakhlova and S.~Pardi and H.~Park and J.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and G.~Russo and S.~Sandilya and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and W.~Shan and C.~Sharma and J.-G.~Shiu and J.~B.~Singh and E.~Solovieva and M.~Starič and M.~Takizawa and K.~Tanida and F.~Tenchini and R.~Tiwary and M.~Uchida and Y.~Unno and S.~Uno and P.~Urquijo and Y.~Usov and A.~Vinokurova and S.~Watanuki and E.~Won and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and Y.~Yook and C.~Z.~Yuan and L.~Yuan and Y.~Yusa and Z.~P.~Zhang and V.~Zhilich}, title = {{S}earch for a pentaquark state decaying into $p{J}/\psi$ in $\{U}psilon(1,2{S})$ inclusive decays at {B}elle}, year = {2024}, eprint = {2403.04340}, note = {arXiv:2403.04340v3} }
PDF
Using the data samples of 102 million $\Upsilon(1S)$ and 158 million $\Upsilon(2S)$ events collected by the Belle detector, we search for a pentaquark state in the $pJ/\psi$ final state from $\Upsilon(1,2S)$ inclusive decays. Here, the charge-conjugate $\bar{p}J/\psi$ is included. We observe clear $pJ/\psi$ production in $\Upsilon(1,2S)$ decays and measure the branching fractions to be $\mathcal{B}[\Upsilon(1S) \to pJ/\psi + anything] = [4.27 \pm 0.16(stat.) \pm 0.20(syst.)] \times 10^{-5}$ and $\mathcal{B}[\Upsilon(2S) \to pJ/\psi + anything] = [3.59 \pm 0.14(stat.) \pm 0.16(syst.)] \times 10^{-5}$. We also measure the cross section of inclusive $pJ/\psi$ production in $e^+e^-$ annihilation to be $\sigma(e^+e^- \to pJ/\psi + anything) = [57.5 \pm 2.1 (stat.) \pm 2.5(syst.)]$~fb at $\sqrt{s} = 10.52~\hbox{GeV}$ using an 89.5~fb$^{-1}$ continuum data sample. There is no significant $P_c(4312)^+$, $P_c(4440)^+$ or $P_c(4457)^+$ signal found in the $pJ/\psi$ final states in $\Upsilon(1,2S)$ inclusive decays. We determine the upper limits of $\mathcal{B}[\Upsilon(1,2S)\to P_c^{+} + anything] \cdot \mathcal{B}(P_c^{+}\to pJ/\psi)$ to be at the $10^{-6}$ level.
Search for a $\mu^+\mu^-$ resonance in four-muon final states at Belle II
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, et al (384)
Mar 06 2024 hep-ex arXiv:2403.02841v2

@misc{2403.02841, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and M.~Dorigo and K.~Dort and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and G.~Inguglia and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and H.~Junkerkalefeld and D.~Kalita and J.~Kandra and K.~H.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and Y.~Li and Y.~B.~Li and J.~Libby and M.~H.~Liu and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and M.~Nakao and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and C.~Niebuhr and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and G.~Pakhlova and A.~Panta and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~P.~Shen and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and F.~Tenchini and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and B.~Zhang and V.~Zhilich and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova}, title = {{S}earch for a $\mu^+\mu^-$ resonance in four-muon final states at {B}elle {II}}, year = {2024}, eprint = {2403.02841}, howpublished = {Phys. Rev. D 109, 112015 (2024)}, doi = {10.1103/PhysRevD.109.112015}, note = {arXiv:2403.02841v2} }
PDF
We report on a search for a resonance $X$ decaying to a pair of muons in $e^{+}e^{-}\rightarrow \mu^+ \mu^- X$ events in the 0.212-9.000 GeV/$c^{2}$ mass range, using 178 fb$^{-1}$ of data collected by the BelleII experiment at the SuperKEKB collider at a center of mass energy of 10.58 GeV. The analysis probes two different models of $X$ beyond the standard model: a $Z^{\prime}$ vector boson in the $L_{\mu}-L_{\tau}$ model and a muonphilic scalar. We observe no evidence for a signal and set exclusion limits at the 90$\%$ confidence level on the products of cross section and branching fraction for these processes, ranging from 0.046 fb to 0.97 fb for the $L_{\mu}-L_{\tau}$ model and from 0.055 fb to 1.3 fb for the muonphilic scalar model. For masses below 6 GeV/$c^{2}$, the corresponding constraints on the couplings of these processes to the standard model range from 0.0008 to 0.039 for the $L_{\mu}-L_{\tau}$ model and from 0.0018 to 0.040 for the muonphilic scalar model. These are the first constraints on the muonphilic scalar from a dedicated search.
Measurement of $CP$ asymmetries in $B^0 \rightarrow K^0_S K^0_S K^0_S$ decays at Belle II
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, et al (433)
Mar 06 2024 hep-ex arXiv:2403.02590v1

@misc{2403.02590, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and L.~Bierwirth and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and K.~Hara and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and H.~Kakuno and M.~Kaleta and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and Y.~Kulii and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and C.~Li and L.~K.~Li and Y.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and A.~Lozar and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and M.~Nakao and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and M.~Neu and C.~Niebuhr and N.~K.~Nisar and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and Y.~Sue and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and H.~Tanigawa and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and M.~Veronesi and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova}, title = {{M}easurement of ${CP}$ asymmetries in ${B}^0 \rightarrow {K}^0_{S} {K}^0_{S} {K}^0_{S}$ decays at {B}elle {II}}, year = {2024}, eprint = {2403.02590}, note = {arXiv:2403.02590v1} }
PDF
We report a measurement of decay-time dependent charge-parity ($CP$) asymmetries in $B^0 \rightarrow K^0_S K^0_S K^0_S$ decays. We use $387 \times 10^6 B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle II detector at the SuperKEKB asymmetric-energy electron-positron collider. We reconstruct 220 signal events and extract the $CP$-violating parameters $S$ and $C$ from a fit to the distribution of the decay-time difference between the two $B$ mesons. The resulting confidence region is consistent with previous measurements in $B^0 \rightarrow K^0_S K^0_S K^0_S$ and $B^0 \rightarrow (c\bar{c})K^0$ decays, and with predictions based on the standard model.
New graph-neural-network flavor tagger for Belle II and measurement of $\sin2\phi_1$ in $B^0 \to J/\psi K^0_\text{S}$ decays
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, et al (396)
Feb 28 2024 hep-ex arXiv:2402.17260v2

@misc{2402.17260, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and L.~Bierwirth and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and P.~Cheema and C.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and R.~Dhamija and A.~Di Canto and F.~Di Capua and Z.~Doležal and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and Y.~Han and K.~Hara and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and H.~Junkerkalefeld and H.~Kakuno and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and Y.~Kulii and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and D.~Levit and C.~Li and L.~K.~Li and Y.~Li and Y.~B.~Li and J.~Libby and Y.-R.~Lin and M.~H.~Liu and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and C.~Miller and M.~Mirra and S.~Mitra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and M.~Nakao and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and M.~Neu and C.~Niebuhr and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Panta and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and F.~Tenchini and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and B.~Zhang and V.~Zhilich and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{N}ew graph-neural-network flavor tagger for {B}elle {II} and measurement of $\sin2\phi_1$ in ${B}^0 \to {J}/\psi {K}^0_\text{{S}}$ decays}, year = {2024}, eprint = {2402.17260}, howpublished = {Phys. Rev. D 110, 012001, 2024}, doi = {10.1103/PhysRevD.110.012001}, note = {arXiv:2402.17260v2} }
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We present GFlaT, a new algorithm that uses a graph-neural-network to determine the flavor of neutral $B$ mesons produced in $\Upsilon(4S)$ decays. It improves previous algorithms by using the information from all charged final-state particles and the relations between them. We evaluate its performance using $B$ decays to flavor-specific hadronic final states reconstructed in a 362 $\text{fb}^{-1}$ sample of electron-positron collisions collected at the $\Upsilon(4S)$ resonance with the Belle II detector at the SuperKEKB collider. We achieve an effective tagging efficiency of $(37.40 \pm 0.43 \pm 0.36) \%$, where the first uncertainty is statistical and the second systematic, which is $18\%$ better than the previous Belle II algorithm. Demonstrating the algorithm, we use $B^{0}\to J/\psi K^0_\text{S}$ decays to measure the mixing-induced and direct $CP$ violation parameters, $S = (0.724 \pm 0.035 \pm 0.009)$ and $C = (-0.035 \pm 0.026 \pm 0.029)$.
The Neural Network First-Level Hardware Track Trigger of the Belle II Experiment
S. Bähr, H. Bae, J. Becker, M. Bertemes, M. Campajola, T. Ferber, G. Inguglia, Y. Iwasaki, T. Jülg, C. Kiesling, Y.-T. Lai, Y. Liu, A. Knoll, T. Koga, A. Lenz, F. Meggendorfer, H. Nakazawa, M. Neu, J. Schieck, E. Schmidt, et al (4)
Feb 26 2024 hep-ex physics.ins-det arXiv:2402.14962v2

@misc{2402.14962, author = {S.~Bähr and H.~Bae and J.~Becker and M.~Bertemes and M.~Campajola and T.~Ferber and G.~Inguglia and Y.~Iwasaki and T.~Jülg and C.~Kiesling and Y.-T.~Lai and Y.~Liu and A.~Knoll and T.~Koga and A.~Lenz and F.~Meggendorfer and H.~Nakazawa and M.~Neu and J.~Schieck and E.~Schmidt and J.-G.~Shiu and S.~Skambraks and K.~Unger and J.~Yin}, title = {{T}he {N}eural {N}etwork {F}irst-{L}evel {H}ardware {T}rack {T}rigger of the {B}elle {II} {E}xperiment}, year = {2024}, eprint = {2402.14962}, note = {arXiv:2402.14962v2} }
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We describe the principles and performance of the first-level ("L1") hardware track trigger of Belle II, based on neural networks. The networks use as input the results from the standard Belle II trigger, which provides "2D" track candidates in the plane transverse to the electron-positron beams. The networks then provide estimates for the origin of the 2D track candidates in direction of the colliding beams ("$z$-vertex"), as well as their polar emission angles $\theta$. Given the $z$-vertices of the "neural" tracks allows identifying events coming from the collision region ($z \approx 0$), and suppressing the overwhelming background from outside by a suitable cut $d$. Requiring $|z| < d$ for at least one neural track in an event with two or more 2D candidates will set an L1 trigger. The networks also enable a minimum bias trigger, requiring a single 2D track candidate validated by a neural track with a momentum larger than 0.7 GeV in addition to the $|z|$ condition. The momentum of the neural track is derived with the help of the polar angle $\theta$.
Measurement of $CP$ asymmetries in $B^0\to\eta'K^0_s$ decays at Belle II
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, J. Baudot, et al (382)
Feb 07 2024 hep-ex arXiv:2402.03713v1

@misc{2402.03713, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and P.~Cheema and C.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and L.~Corona and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and M.~Dorigo and K.~Dort and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and K.~Hara and T.~Hara and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and H.~Junkerkalefeld and H.~Kakuno and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and Y.~Kulii and J.~Kumar and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and D.~Levit and C.~Li and L.~K.~Li and Y.~Li and Y.~B.~Li and J.~Libby and M.~Liu and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and C.~Miller and M.~Mirra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and C.~Niebuhr and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Panta and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and F.~Tenchini and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and B.~Zhang and Y.~Zhang and V.~Zhilich and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova}, title = {{M}easurement of ${CP}$ asymmetries in ${B}^0\to\eta'{K}^0_s$ decays at {B}elle {II}}, year = {2024}, eprint = {2402.03713}, note = {arXiv:2402.03713v1} }
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We describe a measurement of charge-parity ($CP$) violation asymmetries in $B^0\to\eta'K^0_S$ decays using Belle II data. We consider $\eta'\to\eta(\to\gamma\gamma)\pi^+\pi^-$ and $\eta'\to\rho(\to\pi^+\pi^-)\gamma$ decays. The data were collected at the SuperKEKB asymmetric-energy $e^+e^-$ collider between the years 2019 and 2022, and contain $(387\pm 6) \times 10^6$ bottom-antibottom meson pairs. We reconstruct $829\pm35$ signal decays and extract the $CP$ violating parameters from a fit to the distribution of the proper-decay-time difference between the two $B$ mesons. The measured direct and mixing-induced $CP$ asymmetries are $\text{C}_{\eta'K^0_S} = -0.19 \pm 0.08 \pm 0.03 $ and $\text{S}_{\eta'K^0_S} = +0.67 \pm 0.10 \pm 0.04 $, respectively, where the first uncertainties are statistical and the second are systematic. These results are in agreement with current world averages and standard model predictions.
Search for a heavy neutral lepton that mixes predominantly with the tau neutrino
Belle Collaboration, M. Nayak, S. Dey, A. Soffer, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, R. Ayad, V. Babu, Sw. Banerjee, M. Bauer, P. Behera, K. Belous, M. Bessner, V. Bhardwaj, B. Bhuyan, T. Bilka, D. Biswas, et al (148)
Feb 06 2024 hep-ex arXiv:2402.02580v3

@misc{2402.02580, author = {Belle Collaboration and M.~Nayak and S.~Dey and A.~Soffer and I.~Adachi and H.~Aihara and S.~Al Said and D.~M.~Asner and H.~Atmacan and R.~Ayad and V.~Babu and Sw.~Banerjee and M.~Bauer and P.~Behera and K.~Belous and M.~Bessner and V.~Bhardwaj and B.~Bhuyan and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and D.~Červenkov and M.-C.~Chang and B.~G.~Cheon and H.~E.~Cho and K.~Cho and Y.~Choi and S.~Choudhury and S.~Das and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and S.~Dubey and P.~Ecker and D.~Epifanov and T.~Ferber and O.~Fogel and B.~G.~Fulsom and V.~Gaur and A.~Giri and P.~Goldenzweig and E.~Graziani and K.~Gudkova and C.~Hadjivasiliou and S.~Halder and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and M.~T.~Hedges and D.~Herrmann and W.-S.~Hou and C.-L.~Hsu and K.~Inami and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and S.~Jia and Y.~Jin and T.~Kawasaki and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.~Kinoshita and P.~Kodyš and A.~Korobov and S.~Korpar and P.~Križan and P.~Krokovny and T.~Kuhr and D.~Kumar and R.~Kumar and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and T.~Lam and J.~S.~Lange and M.~Laurenza and S.~C.~Lee and L.~K.~Li and Y.~B.~Li and L.~Li Gioi and J.~Libby and K.~Lieret and Y.-R.~Lin and D.~Liventsev and T.~Luo and Y.~Ma and M.~Masuda and S.~K.~Maurya and F.~Meier and M.~Merola and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and R.~Mussa and I.~Nakamura and M.~Nakao and Z.~Natkaniec and A.~Natochii and L.~Nayak and S.~Nishida and S.~Ogawa and H.~Ono and P.~Oskin and P.~Pakhlov and G.~Pakhlova and S.~Pardi and H.~Park and J.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and M.~Röhrken and A.~Rostomyan and N.~Rout and G.~Russo and S.~Sandilya and L.~Santelj and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and W.~Shan and C.~Sharma and C.~P.~Shen and J.-G.~Shiu and J.~B.~Singh and A.~Sokolov and E.~Solovieva and M.~Starič and M.~Sumihama and M.~Takizawa and K.~Tanida and F.~Tenchini and Y.~Unno and S.~Uno and Y.~Ushiroda and S.~E.~Vahsen and M.-Z.~Wang and S.~Watanuki and E.~Won and B.~D.~Yabsley and W.~Yan and J.~H.~Yin and L.~Yuan and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{S}earch for a heavy neutral lepton that mixes predominantly with the tau neutrino}, year = {2024}, eprint = {2402.02580}, howpublished = {Phys.Rev.D 109 (2024) 11, L111102}, doi = {10.1103/PhysRevD.109.L111102}, note = {arXiv:2402.02580v3} }
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We report a search for a heavy neutral lepton (HNL) that mixes predominantly with $\nu_\tau$. The search utilizes data collected with the Belle detector at the KEKB asymmetric energy $e^+ e^-$ collider. The data sample was collected at and just below the center-of-mass energies of the $\Upsilon(4S)$ and $\Upsilon(5S)$ resonances and has an integrated luminosity of $915~\textrm{fb}^{-1}$, corresponding to $(836\pm 12)\times 10^6$ $e^+e^\to\tau^+\tau^-$ events. We search for production of the HNL (denoted $N$) in the decay $\tau^-\to \pi^- N$ followed by its decay via $N \to \mu^+\mu^- \nu_\tau$. The search focuses on the parameter-space region in which the HNL is long lived, so that the $\mu^+\mu^-$ originate from a common vertex that is significantly displaced from the collision point of the KEKB beams. Consistent with the expected background yield, one event is observed in the data sample after application of all the event-selection criteria. We report limits on the mixing parameter of the HNL with the $\tau$ neutrino as a function of the HNL mass.
Study of $\Upsilon(10753)$ decays to $\pi^{+}\pi^{-}\Upsilon(nS)$ final states at Belle II
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, M. Barrett, et al (376)
Jan 23 2024 hep-ex arXiv:2401.12021v3

@misc{2401.12021, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and P.~Cheema and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and L.~Corona and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and M.~Dorigo and K.~Dort and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and H.~Junkerkalefeld and H.~Kakuno and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and D.~Levit and C.~Li and L.~K.~Li and Y.~Li and Y.~B.~Li and J.~Libby and M.~Liu and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and C.~Miller and M.~Mirra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and C.~Niebuhr and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Panta and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schwanda and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~P.~Shen and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and B.~Zhang and Y.~Zhang and V.~Zhilich and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova}, title = {{S}tudy of $\{U}psilon(10753)$ decays to $\pi^{+}\pi^{-}\{U}psilon(n{S})$ final states at {B}elle {II}}, year = {2024}, eprint = {2401.12021}, note = {arXiv:2401.12021v3} }
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We present an analysis of the process $e^{+}e^{-}\to\pi^{+}\pi^{-}\Upsilon(nS)$ (where $n$ = 1, 2, or 3) reconstructed in $19.6\rm$ $\rm fb^{-1}$ of Belle II data during a special run of the SuperKEKB collider at four energy points near the peak of the $\Upsilon(10753)$ resonance. By analyzing the mass distribution of the $\pi^+\pi^-\Upsilon(nS)$ system and the Born cross sections of the $e^{+}e^{-}\to\pi^{+}\pi^{-}\Upsilon(nS)$ process, we report the first observation of $\Upsilon(10753)$ decays to the $\pi^{+}\pi^{-}\Upsilon(1S)$ and $\pi^{+}\pi^{-}\Upsilon(2S)$ final states, and find no evidence for decays to $\pi^{+}\pi^{-}\Upsilon(3S)$. Possible intermediate states in the $\pi^+\pi^-\Upsilon(1S,2S)$ transitions are also investigated, and no evidence for decays proceeding via the $\pi^\mp Z_b^\pm$ or $f_0(980)\Upsilon(nS)$ intermediate states is found. We measure Born cross sections for the $e^{+}e^{-}\to\pi^{+}\pi^{-}\Upsilon(nS)$ process that, combined with results from Belle, improve the precision of measurements of the $\Upsilon(10753)$ mass and width by nearly a factor of two to $(10756.3\pm2.7\pm0.6)$ MeV/$c^2$ and $(29.7\pm8.5\pm1.1)$ MeV, respectively. The relative ratios of the Born cross sections at the $\Upsilon(10753)$ resonance peak are also reported for the first time.
Search for Baryon-Number-Violating Processes in $B^-$ Decays to the $\bar{\Xi}_{c}^{0} \bar{\Lambda}_{c}^{-}$ Final State
Belle Collaboration, T. Gu, V. Savinov, I. Adachi, H. Aihara, D. M. Asner, H. Atmacan, T. Aushev, R. Ayad, Sw. Banerjee, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, B. Bhuyan, D. Biswas, A. Bobrov, D. Bodrov, J. Borah, A. Bozek, et al (144)
Jan 11 2024 hep-ex arXiv:2401.04807v2

@misc{2401.04807, author = {Belle Collaboration and T.~Gu and V.~Savinov and I.~Adachi and H.~Aihara and D.~M.~Asner and H.~Atmacan and T.~Aushev and R.~Ayad and Sw.~Banerjee and K.~Belous and J.~Bennett and M.~Bessner and V.~Bhardwaj and B.~Bhuyan and D.~Biswas and A.~Bobrov and D.~Bodrov and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and D.~Červenkov and M.-C.~Chang and P.~Chang and B.~G.~Cheon and K.~Chilikin and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and S.~Das and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and S.~Dubey and P.~Ecker and T.~Ferber and D.~Ferlewicz and B.~G.~Fulsom and V.~Gaur and A.~Giri and P.~Goldenzweig and E.~Graziani and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and K.~Hayasaka and H.~Hayashii and M.~T.~Hedges and D.~Herrmann and W.-S.~Hou and C.-L.~Hsu and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and S.~Jia and Y.~Jin and K.~K.~Joo and T.~Kawasaki and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.~J.~Kim and P.~Kodyš and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Križan and P.~Krokovny and T.~Kuhr and K.~Kumara and T.~Kumita and Y.-J.~Kwon and Y.-T.~Lai and S.~C.~Lee and D.~Levit and L.~K.~Li and Y.~B.~Li and L.~Li Gioi and D.~Liventsev and M.~Masuda and T.~Matsuda and S.~K.~Maurya and F.~Meier and M.~Merola and F.~Metzner and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and R.~Mussa and I.~Nakamura and M.~Nakao and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and M.~Niiyama and S.~Nishida and S.~Ogawa and G.~Pakhlova and S.~Pardi and H.~Park and J.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and M.~Röhrken and G.~Russo and S.~Sandilya and L.~Santelj and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and W.~Shan and C.~Sharma and J.-G.~Shiu and E.~Solovieva and M.~Starič and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and R.~Tiwary and K.~Trabelsi and M.~Uchida and Y.~Unno and S.~Uno and Y.~Usov and S.~E.~Vahsen and K.~E.~Varvell and A.~Vinokurova and E.~Wang and M.-Z.~Wang and X.~L.~Wang and S.~Watanuki and E.~Won and X.~Xu and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and L.~Yuan and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{S}earch for {B}aryon-{N}umber-{V}iolating {P}rocesses in ${B}^-$ {D}ecays to the $\bar{\{X}i}_{c}^{0} \bar{\{L}ambda}_{c}^{-}$ {F}inal {S}tate}, year = {2024}, eprint = {2401.04807}, note = {arXiv:2401.04807v2} }
PDF
We report the results of the first search for $B^-$ decays to the $\bar{\Xi}_{c}^{0} \bar{\Lambda}_{c}^{-}$ final state using 711~${\rm fb^{-1}}$ of data collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. The results are interpreted in terms of both direct baryon-number-violating $B^-$ decay and $\Xi_{c}^{0}-\bar{\Xi}_{c}^{0}$ oscillations which follow the Standard Model decay $B^- \to \Xi_{c}^{0} \bar{\Lambda}_{c}^{-}$. We observe no evidence for baryon number violation and set the 95\% confidence-level upper limits on the ratio of baryon-number-violating and Standard Model branching fractions ${\mathcal{B}(B^- \rightarrow \bar{\Xi}_{c}^{0} \bar{\Lambda}_{c}^{-})}/{\mathcal{B}(B^- \rightarrow \Xi_{c}^{0} \bar{\Lambda}_{c}^{-})}$ to be $< 2.7\%$ and on the $\Xi_{c}^{0} - \bar{\Xi}_{c}^{0}$ oscillation angular frequency $\omega$ to be $< 0.76\ \mathrm{ps}^{-1}$ (equivalent to $\tau_{\rm mix} > 1.3$~ps).
Measurements of the branching fraction, polarization, and $CP$ asymmetry for the decay $B^0\rightarrow \omega \omega$
Belle Collaboration, Y. Guan, A. J. Schwartz, K. Kinoshita, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, R. Ayad, S. Bahinipati, Sw. Banerjee, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, B. Bhuyan, D. Biswas, A. Bobrov, D. Bodrov, et al (150)
Jan 10 2024 hep-ex arXiv:2401.04646v1

@misc{2401.04646, author = {Belle Collaboration and Y.~Guan and A.~J.~Schwartz and K.~Kinoshita and I.~Adachi and H.~Aihara and S.~Al Said and D.~M.~Asner and H.~Atmacan and R.~Ayad and S.~Bahinipati and Sw.~Banerjee and K.~Belous and J.~Bennett and M.~Bessner and V.~Bhardwaj and B.~Bhuyan and D.~Biswas and A.~Bobrov and D.~Bodrov and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and A.~Budano and M.~Campajola and L.~Cao and D.~Červenkov and M.-C.~Chang and P.~Chang and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and S.~Das and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and S.~Dubey and P.~Ecker and D.~Epifanov and T.~Ferber and D.~Ferlewicz and B.~G.~Fulsom and V.~Gaur and A.~Giri and P.~Goldenzweig and E.~Graziani and T.~Gu and K.~Gudkova and C.~Hadjivasiliou and K.~Hayasaka and H.~Hayashii and S.~Hazra and M.~T.~Hedges and W.-S.~Hou and C.-L.~Hsu and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and S.~Jia and Y.~Jin and K.~K.~Joo and T.~Kawasaki and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.~J.~Kim and Y.-K.~Kim and P.~Kodyš and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Križan and P.~Krokovny and T.~Kuhr and R.~Kumar and K.~Kumara and T.~Kumita and Y.-J.~Kwon and Y.-T.~Lai and S.~C.~Lee and D.~Levit and L.~K.~Li and Y.~Li and Y.~B.~Li and L.~Li Gioi and J.~Libby and D.~Liventsev and T.~Luo and M.~Masuda and T.~Matsuda and S.~K.~Maurya and F.~Meier and M.~Merola and F.~Metzner and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and R.~Mussa and I.~Nakamura and M.~Nakao and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and M.~Niiyama and S.~Nishida and S.~Ogawa and H.~Ono and G.~Pakhlova and S.~Pardi and H.~Park and J.~Park and S.-H.~Park and S.~Paul and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and M.~Röhrken and G.~Russo and S.~Sandilya and L.~Santelj and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and W.~Shan and J.-G.~Shiu and E.~Solovieva and M.~Starič and K.~Sumisawa and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and R.~Tiwary and K.~Trabelsi and M.~Uchida and Y.~Unno and S.~Uno and P.~Urquijo and Y.~Usov and S.~E.~Vahsen and K.~E.~Varvell and A.~Vinokurova and M.-Z.~Wang and S.~Watanuki and E.~Won and X.~Xu and B.~D.~Yabsley and W.~Yan and Y.~Yook and L.~Yuan and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{M}easurements of the branching fraction, polarization, and ${CP}$ asymmetry for the decay ${B}^0\rightarrow \omega \omega$}, year = {2024}, eprint = {2401.04646}, note = {arXiv:2401.04646v1} }
PDF
We present a measurement of $B^{0} \rightarrow \omega \omega$, a charmless decay into two vector mesons, using 772 $\times 10^6$ $B\overline{B}$ pairs collected with the Belle detector at the KEKB $e^+e^-$ collider. The decay is observed with a significance of 7.9 standard deviations. We measure a branching fraction $\mathcal{B} = (1.53 \pm 0.29 \pm 0.17) \times 10^{-6}$, a fraction of longitudinal polarization $f_L = 0.87 \pm 0.13 \pm 0.13$, and a time-integrated $CP$ asymmetry $A_{CP}$ = $-0.44 \pm 0.43 \pm 0.11$, where the first uncertainties listed are statistical and the second are systematic. This is the first observation of $B^{0} \rightarrow \omega \omega$, and the first measurements of $f_L$ and $A_{CP}$ for this decay.
A test of lepton flavor universality with a measurement of $R(D^{*})$ using hadronic $B$ tagging at the Belle II experiment
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, et al (417)
Jan 08 2024 hep-ex arXiv:2401.02840v1

@misc{2401.02840, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and L.~Bierwirth and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and C.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and Y.~Han and K.~Hara and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and H.~Junkerkalefeld and H.~Kakuno and M.~Kaleta and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and Y.~Kulii and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and Y.~Li and Y.~B.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and A.~C.~Manthei and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and M.~Nakao and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and M.~Neu and C.~Niebuhr and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and K.~Smith and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and Y.~Sue and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and F.~Tenchini and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and C.~Wessel and J.~Wiechczynski and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and B.~Zhang and Y.~Zhang and V.~Zhilich and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{A} test of lepton flavor universality with a measurement of ${R}({D}^{*})$ using hadronic ${B}$ tagging at the {B}elle {II} experiment}, year = {2024}, eprint = {2401.02840}, note = {arXiv:2401.02840v1} }
PDF
The ratio of branching fractions $R(D^{*}) = \mathcal{B}(\overline{B} \rightarrow D^{*} \tau^{-} \overline{\nu}_{\tau})$/$\mathcal{B} (\overline{B} \rightarrow D^{*} \ell^{-} \overline{\nu}_{\ell})$, where $\ell$ is an electron or muon, is measured using a Belle~II data sample with an integrated luminosity of $189~\mathrm{fb}^{-1}$ at the SuperKEKB asymmetric-energy $e^{+} e^{-}$ collider. Data is collected at the $\Upsilon(\mathrm{4S})$ resonance, and one $B$ meson in the $\Upsilon(\mathrm{4S})\rightarrow B\overline{B}$ decay is fully reconstructed in hadronic decay modes. The accompanying signal $B$ meson is reconstructed as $\overline{B}\rightarrow D^{*} \tau^{-}\overline{\nu}_{\tau}$ using leptonic $\tau$ decays. The normalization decay, $\overline{B}\rightarrow D^{*} \ell^{-} \overline{\nu}_{\ell}$, where $\ell$ is an electron or muon, produces the same observable final state particles. The ratio of branching fractions is extracted in a simultaneous fit to two signal-discriminating variables in both channels and yields $R(D^{*}) = 0.262~_{-0.039}^{+0.041}(\mathrm{stat})~_{-0.032}^{+0.035}(\mathrm{syst})$. This result is consistent with the current world average and with standard model predictions.
Search for the $e^+e^-\to\eta_{b}(1S)\omega$ and $e^+e^-\to\chi_{b0}(1P)\omega$ processes at $\sqrt{s}=10.745\,\mathrm{GeV}$
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, J. Baudot, et al (402)
Dec 21 2023 hep-ex arXiv:2312.13043v1

@misc{2312.13043, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and L.~Corona and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and H.~Kakuno and D.~Kalita and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and Y.~Kulii and T.~Kuhr and J.~Kumar and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and L.~K.~Li and Y.~Li and Y.~B.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and A.~Lozar and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and A.~C.~Manthei and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and M.~Nakao and H.~Nakazawa and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and C.~Niebuhr and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schwanda and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and R.~Stroili and Y.~Sue and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and F.~Tenchini and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and L.~Zani and B.~Zhang and V.~Zhilich and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{S}earch for the $e^+e^-\to\eta_{b}(1{S})\omega$ and $e^+e^-\to\chi_{b0}(1{P})\omega$ processes at $\sqrt{s}=10.745\,\mathrm{{G}e{V}}$}, year = {2023}, eprint = {2312.13043}, note = {arXiv:2312.13043v1} }
PDF
We search for the $e^+e^-\to\eta_b(1S)\omega$ and $e^+e^-\to\chi_{b0}(1P)\omega$ processes at a center-of-mass energy of 10.745 GeV, which is close to the peak of the $\Upsilon(10753)$ state. We use data collected by the Belle II experiment during a special run, corresponding to an integrated luminosity of $9.8\,\mathrm{fb}^{-1}$. We reconstruct $\omega\to\pi^+\pi^-\pi^0$ decays and use the $\omega$ meson's recoil mass to search for the signals. We do not find evidence for either process, and set upper limits on the corresponding Born-level cross sections of 2.5 pb and 7.8 pb, respectively, at the 90% confidence level. The $\chi_{b0}(1P)\omega$ limit is the result of a combination of this analysis and a previous search using full reconstruction.
Evidence for $B^{+}\to K^{+}\nu\bar{\nu}$ decays
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, et al (435)
Nov 27 2023 hep-ex arXiv:2311.14647v3

@misc{2311.14647, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and Y.~Fan and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and P.~Grace and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and H.~Kakuno and M.~Kaleta and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and Y.~Kulii and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and A.~Lozar and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and G.~Mancinelli and R.~Manfredi and E.~Manoni and A.~C.~Manthei and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and M.~Nakao and H.~Nakazawa and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and C.~Niebuhr and N.~K.~Nisar and S.~Nishida and S.~Ogawa and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and M.~Schnepf and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and R.~Volpe and B.~Wach and M.~Wakai and H.~M.~Wakeling and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and Y.~M.~Yook and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova}, title = {{E}vidence for ${B}^{+}\to {K}^{+}\nu\bar{\nu}$ decays}, year = {2023}, eprint = {2311.14647}, howpublished = {Phys. Rev. D 109, 112006 (2024)}, doi = {10.1103/PhysRevD.109.112006}, note = {arXiv:2311.14647v3} }
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We search for the rare decay $B^{+}\rightarrow K^{+}\nu\bar{\nu}$ in a $362\ \rm{fb}^{-1}$ sample of electron-positron collisions at the $\Upsilon(4S)$ resonance collected with the Belle II detector at the SuperKEKB collider. We use the inclusive properties of the accompanying $B$ meson in $\Upsilon(4S) \to B\kern 0.18em\overline{\kern -0.18em B}{}$ events to suppress background from other decays of the signal $B$ candidate and light-quark pair production. We validate the measurement with an auxiliary analysis based on a conventional hadronic reconstruction of the accompanying $B$ meson. For background suppression, we exploit distinct signal features using machine learning methods tuned with simulated data. The signal-reconstruction efficiency and background suppression are validated through various control channels. The branching fraction is extracted in a maximum likelihood fit. Our inclusive and hadronic analyses yield consistent results for the $B^{+}\rightarrow K^{+}\nu\bar{\nu}$ branching fraction of $\left[2.7\pm 0.5(\mathrm{stat})\pm 0.5(\mathrm{syst})\right] \times 10^{-5}$ and $\left[1.1^{+0.9}_{-0.8}(\mathrm{stat}){}^{+0.8}_{-0.5}(\mathrm{syst})\right] \times 10^{-5}$, respectively. Combining the results, we determine the branching fraction of the decay $B^{+}\rightarrow K^{+}\nu\bar{\nu}$ to be $\left[2.3 \pm 0.5(\mathrm{stat})^{+0.5}_{-0.4}(\mathrm{syst})\right]\times 10^{-5}$, providing the first evidence for this decay at $3.5$ standard deviations. The combined result is $2.7$ standard deviations above the standard model expectation.
Measurement of branching fractions and direct $CP$ asymmetries for $B \to K\pi$ and $B\to\pi\pi$ decays at Belle II
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, M. Barrett, et al (418)
Oct 11 2023 hep-ex arXiv:2310.06381v2

@misc{2310.06381, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and P.~Grace and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and Y.~Kulii and T.~Kuhr and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and Y.~Li and J.~Libby and S.~Lin and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and M.~Nakao and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and H.~Tanigawa and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and M.~Veronesi and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and H.~M.~Wakeling and S.~Wallner and E.~Wang and M.-Z.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{M}easurement of branching fractions and direct ${CP}$ asymmetries for ${B} \to {K}\pi$ and ${B}\to\pi\pi$ decays at {B}elle {II}}, year = {2023}, eprint = {2310.06381}, howpublished = {Phys. Rev. D 109, 012001 (2024)}, doi = {10.1103/PhysRevD.109.012001}, note = {arXiv:2310.06381v2} }
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We report measurements of the branching fractions and direct $\it{CP}$ asymmetries of the decays $B^0 \to K^+ \pi^-$, $B^+ \to K^+ \pi^0$, $B^+ \to K^0 \pi^+$, and $B^0 \to K^0 \pi^0$, and use these for testing the standard model through an isospin-based sum rule. In addition, we measure the branching fraction and direct $\it{CP}$ asymmetry of the decay $B^+ \to \pi^+\pi^0$ and the branching fraction of the decay $B^0 \to \pi^+\pi^-$. The data are collected with the Belle II detector from $e^+e^-$ collisions at the $\Upsilon(4S)$ resonance produced by the SuperKEKB asymmetric-energy collider and contain $387\times 10^6$ bottom-antibottom meson pairs. Signal yields are determined in two-dimensional fits to background-discriminating variables, and range from 500 to 3900 decays, depending on the channel. We obtain $-0.03 \pm 0.13 \pm 0.04$ for the sum rule, in agreement with the standard model expectation of zero and with a precision comparable to the best existing determinations.
Determination of $|V_{cb}|$ using $\overline{B}^0\to D^{*+}\ell^-\bar\nu_\ell$ decays with Belle II
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, J. Baudot, et al (399)
Oct 04 2023 hep-ex arXiv:2310.01170v2

@misc{2310.01170, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and H.~Junkerkalefeld and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and J.~Kumar and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and Y.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and A.~C.~Manthei and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and G.~Nazaryan and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and M.~Schnepf and C.~Schwanda and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and C.~P.~Shen and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and M.~Veronesi and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and E.~Waheed and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and L.~Zani and Y.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{D}etermination of $|{V}_{cb}|$ using $\overline{{B}}^0\to {D}^{*+}\ell^-\bar\nu_\ell$ decays with {B}elle {II}}, year = {2023}, eprint = {2310.01170}, howpublished = {Phys.Rev.D 108 (2023) 9, 092013}, doi = {10.1103/PhysRevD.108.092013}, note = {arXiv:2310.01170v2} }
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We determine the CKM matrix-element magnitude $|V_{cb}|$ using $\overline{B}^0\to D^{*+}\ell^-\bar\nu_\ell$ decays reconstructed in $189 \, \mathrm{fb}^{-1}$ of collision data collected by the Belle II experiment, located at the SuperKEKB $e^+e^-$ collider. Partial decay rates are reported as functions of the recoil parameter $w$ and three decay angles separately for electron and muon final states. We obtain $|V_{cb}|$ using the Boyd-Grinstein-Lebed and Caprini-Lellouch-Neubert parametrizations, and find $|V_{cb}|_\mathrm{BGL}=(40.57\pm 0.31 \pm 0.95\pm 0.58)\times 10^{-3}$ and $|V_{cb}|_\mathrm{CLN}=(40.13 \pm 0.27 \pm 0.93\pm 0.58 )\times 10^{-3}$ with the uncertainties denoting statistical components, systematic components, and components from the lattice QCD input, respectively. The branching fraction is measured to be ${\cal B}(\overline{B}^0\to D^{*+}\ell^-\bar\nu_\ell)=(4.922 \pm 0.023 \pm 0.220)\%$. The ratio of branching fractions for electron and muon final states is found to be $0.998 \pm 0.009 \pm 0.020$. In addition, we determine the forward-backward angular asymmetry and the $D^{*+}$ longitudinal polarization fractions. All results are compatible with lepton-flavor universality in the Standard Model.
Search for charged-lepton flavor violation in $\Upsilon(2S) \to \ell^\mp\tau^\pm$ ($\ell=e,\mu$) decays at Belle
R. Dhamija, S. Nishida, A. Giri, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, R. Ayad, V. Babu, S. Bahinipati, Sw. Banerjee, M. Bauer, P. Behera, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, D. Biswas, D. Bodrov, J. Borah, et al (161)
Sep 07 2023 hep-ex arXiv:2309.02739v2

@misc{2309.02739, author = {R.~Dhamija and S.~Nishida and A.~Giri and I.~Adachi and H.~Aihara and D.~M.~Asner and T.~Aushev and R.~Ayad and V.~Babu and S.~Bahinipati and Sw.~Banerjee and M.~Bauer and P.~Behera and K.~Belous and J.~Bennett and M.~Bessner and V.~Bhardwaj and D.~Biswas and D.~Bodrov and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and D.~Červenkov and M.-C.~Chang and P.~Chang and V.~Chekelian and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and D.~Cinabro and S.~Das and G.~De Nardo and G.~De Pietro and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and P.~Ecker and D.~Epifanov and T.~Ferber and D.~Ferlewicz and B.~G.~Fulsom and R.~Garg and V.~Gaur and P.~Goldenzweig and E.~Graziani and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and K.~Hayasaka and H.~Hayashii and S.~Hazra and M.~T.~Hedges and D.~Herrmann and W.-S.~Hou and C.-L.~Hsu and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and E.-J.~Jang and S.~Jia and Y.~Jin and K.~K.~Joo and A.~B.~Kaliyar and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and T.~Konno and A.~Korobov and S.~Korpar and P.~Križan and P.~Krokovny and M.~Kumar and R.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and S.~C.~Lee and D.~Levit and P.~Lewis and L.~K.~Li and L.~Li Gioi and J.~Libby and K.~Lieret and Y.-R.~Lin and D.~Liventsev and Y.~Ma and M.~Masuda and T.~Matsuda and S.~K.~Maurya and F.~Meier and M.~Merola and F.~Metzner and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and I.~Nakamura and M.~Nakao and A.~Natochii and L.~Nayak and M.~Niiyama and N.~K.~Nisar and S.~Ogawa and P.~Pakhlov and G.~Pakhlova and S.~Pardi and H.~Park and J.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and N.~Rout and G.~Russo and S.~Sandilya and L.~Santelj and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and W.~Shan and C.~Sharma and J.-G.~Shiu and B.~Shwartz and A.~Sokolov and E.~Solovieva and M.~Starič and Z.~S.~Stottler and M.~Sumihama and M.~Takizawa and K.~Tanida and F.~Tenchini and K.~Trabelsi and M.~Uchida and T.~Uglov and Y.~Unno and S.~Uno and P.~Urquijo and S.~E.~Vahsen and K.~E.~Varvell and A.~Vinokurova and D.~Wang and E.~Wang and M.-Z.~Wang and S.~Watanuki and E.~Won and X.~Xu and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and J.~H.~Yin and C.~Z.~Yuan and L.~Yuan and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{S}earch for charged-lepton flavor violation in $\{U}psilon(2{S}) \to \ell^\mp\tau^\pm$ ($\ell=e,\mu$) decays at {B}elle}, year = {2023}, eprint = {2309.02739}, note = {arXiv:2309.02739v2} }
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We report a search for the charged-lepton flavor violation in $\Upsilon(2S) \to \ell^\mp\tau^\pm$ ($\ell=e,\mu$) decays using a $25~\fbi$ $\Upsilon(2S)$ sample collected by the Belle detector at the KEKB $e^{+}$$e^-$ asymmetric-energy collider. We find no evidence for a signal and set upper limits on the branching fractions ($\mathcal{B}$) at 90\% confidence level. We obtain the most stringent upper limits: $\mathcal{B}(\Ytomutau) < 0.23 \times 10^{-6}$ and $\mathcal{B}(\Ytoetau) < 1.12 \times 10^{-6}$.
Observation of charmed strange meson pair production in $\Upsilon(2S)$ decays and in $e^{+}e^{-}$ annihilation at $\sqrt{s} = 10.52~ \rm{GeV}$
Belle Collaboration, B. S. Gao, W. J. Zhu, X. L. Wang, I. Adachi, H. Aihara, D. M. Asner, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, Sw. Banerjee, M. Bauer, P. Behera, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, T. Bilka, D. Biswas, et al (148)
Aug 21 2023 hep-ex arXiv:2308.08900v3

@misc{2308.08900, author = {Belle Collaboration and B.~S.~Gao and W.~J.~Zhu and X.~L.~Wang and I.~Adachi and H.~Aihara and D.~M.~Asner and V.~Aulchenko and T.~Aushev and R.~Ayad and V.~Babu and Sw.~Banerjee and M.~Bauer and P.~Behera and K.~Belous and J.~Bennett and M.~Bessner and V.~Bhardwaj and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bondar and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and D.~Červenkov and M.-C.~Chang and P.~Chang and V.~Chekelian and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and D.~Cinabro and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and P.~Ecker and T.~Ferber and D.~Ferlewicz and B.~G.~Fulsom and V.~Gaur and A.~Giri and E.~Graziani and T.~Gu and K.~Gudkova and C.~Hadjivasiliou and K.~Hayasaka and H.~Hayashii and S.~Hazra and M.~T.~Hedges and D.~Herrmann and W.-S.~Hou and C.-L.~Hsu and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and E.-J.~Jang and S.~Jia and Y.~Jin and K.~K.~Joo and T.~Kawasaki and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and T.~Konno and A.~Korobov and S.~Korpar and P.~Križan and M.~Kumar and R.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and S.~C.~Lee and D.~Levit and P.~Lewis and L.~K.~Li and L.~Li Gioi and J.~Libby and K.~Lieret and D.~Liventsev and Y.~Ma and M.~Masuda and T.~Matsuda and S.~K.~Maurya and F.~Meier and M.~Merola and R.~Mizuk and I.~Nakamura and M.~Nakao and D.~Narwal and A.~Natochii and L.~Nayak and M.~Niiyama and N.~K.~Nisar and S.~Nishida and S.~Ogawa and P.~Pakhlov and G.~Pakhlova and S.~Pardi and J.~Park and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and G.~Russo and S.~Sandilya and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and W.~Shan and C.~Sharma and J.-G.~Shiu and B.~Shwartz and E.~Solovieva and M.~Starič and Z.~S.~Stottler and M.~Sumihama and K.~Tanida and F.~Tenchini and M.~Uchida and T.~Uglov and Y.~Unno and S.~Uno and S.~E.~Vahsen and K.~E.~Varvell and D.~Wang and E.~Wang and M.-Z.~Wang and S.~Watanuki and E.~Won and X.~Xu and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and J.~H.~Yin and Y.~Yook and C.~Z.~Yuan and L.~Yuan and V.~Zhilich and V.~Zhukova}, title = {{O}bservation of charmed strange meson pair production in $\{U}psilon(2{S})$ decays and in $e^{+}e^{-}$ annihilation at $\sqrt{s} = 10.52~ \rm{{G}e{V}}$}, year = {2023}, eprint = {2308.08900}, note = {arXiv:2308.08900v3} }
PDF
We observe the process $\Upsilon(2S)\to D_s^{(*)+} D_{sJ}^{-}$ and continuum production $e^+e^- \to D_s^{(*)+} D_{sJ}^- $ at $\sqrt{s} = 10.52$ GeV (and their charge conjugates) using the data samples collected by the Belle detector at KEKB, where $D_{sJ}^-$ is $D_{s1}(2536)^-$ or $D^{*}_{s2}(2573)^-$. Both $D_{sJ}^-$ states are identified through their decay into $\bar{K}\bar{D}^{(*)}$. We measure the products of branching fractions ${\cal B}(\Upsilon(2S) \to D_{s}^{(*)+} D_{sJ}^-) {\cal B}(D_{sJ}^-\to \bar{K} \bar{D}^{(*)})$ and the Born cross sections $\sigma^{\rm Born}(e^+e^- \to D_{s}^{(*)+} D_{sJ}^-) {\cal B}(D_{sJ}^-\to \bar{K} \bar{D}^{(*)})$, and then compare the ratios $R_1 \equiv {\cal B}(\Upsilon(2S)\to D_{s}^{(*)+} D_{sJ}^-)/{\cal B}(\Upsilon(2S)\to\mu^{+}\mu^-)$ for $\Upsilon(2S)$ decays and $R_2 \equiv \sigma^{\rm Born}(e^+e^-\to D_{s}^{(*)+}D_{sJ}^-)/\sigma^{\rm Born}(e^+e^-\to \mu^{+}\mu^-)$ for continuum production. We obtain $R_1/R_2 = 9.7\pm 2.3 \pm 1.1$, $6.8 \pm 2.1 \pm 0.8$, $10.2 \pm 3.3 \pm 2.5$, and $3.4 \pm 2.1 \pm 0.5$ for the $D_s^+ D_{s1}(2536)^-$, $D_s^{*+} D_{s1}(2536)^-$, $D_s^+ D_{s2}^{*}(2573)^{-}$, and $D_s^{*+} D_{s2}^{*}(2573)^{-}$ final states in the $D_{sJ}^-\to K^{-} \bar{D}^{(*)0}$ modes, respectively. Therefore, the strong decay is expected to dominate in the $\Upsilon(2S)\to D_{s}^{(*)+}D_{sJ}^-$ processes. We also measure the ratios of branching fractions ${\cal B}(D_{s1}(2536)^-\to K_S^0 D^{*}(2010)^{-})/{\cal B}(D_{s1}(2536)^-\to K^{-} D^{*}(2007)^0) = 0.48 \pm 0.07 \pm 0.02$ and ${\cal B}(D_{s2}^{*}(2573)^- \to K_S^0 D^-)/{\cal B}(D_{s2}^{*}(2573)^- \to K^{-}D^0) = 0.49 \pm 0.10 \pm 0.02$, which are consistent with isospin symmetry. The second ratio is the first measurement of this quantity. Here, the first uncertainties are statistical and the second are systematic.
Measurement of branching-fraction ratios and $CP$ asymmetries in $B^{\pm} \to D_{CP\pm}K^{\pm}$ decays at Belle and Belle II
Belle, Belle II Collaborations, I. Adachi, L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, et al (409)
Aug 10 2023 hep-ex arXiv:2308.05048v2

@misc{2308.05048, author = {Belle and Belle II Collaborations and I.~Adachi and L.~Aggarwal and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and P.~K.~Behera and K.~Belous and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and P.~Cheema and V.~Chekelian and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and T.~Czank and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and P.~Horak and W.-S.~Hou and C.-L.~Hsu and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and H.~Junkerkalefeld and H.~Kakuno and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and J.~Li and L.~K.~Li and Y.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and T.~Nakano and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and G.~Nazaryan and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and G.~Schnell and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and D.~Wang and E.~Wang and M.-Z.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and L.~Zani and Y.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{M}easurement of branching-fraction ratios and ${CP}$ asymmetries in ${B}^{\pm} \to {D}_{{CP}\pm}{K}^{\pm}$ decays at {B}elle and {B}elle {II}}, year = {2023}, eprint = {2308.05048}, note = {arXiv:2308.05048v2} }
PDF
We report results from a study of $B^\pm \rightarrow DK^\pm$ decays followed by $D$ decaying to $CP$~eigenstates, where $D$ indicates a $D^0$ or $\bar{D}^{0}$ meson. These decays are sensitive to the Cabibbo-Kobayashi-Maskawa unitarity-triangle angle $\phi_{3}$. The results are based on a combined analysis of the final data set of $772 \times 10^6~B\bar{B}$ pairs collected by the Belle experiment and a data set of $198 \times 10^6~B\bar{B}$ pairs collected by the Belle~II experiment, both in electron-positron collisions at the $\Upsilon(4S)$ resonance. We measure the $CP$ asymmetries to be $\mathcal{ A}_{CP +} =~(+12.5 \pm 5.8 \pm 1.4)\% $ and $\mathcal{ A}_{CP -} =~(-16.7 \pm 5.7 \pm 0.6)\%$, and the ratios of branching fractions to be $\mathcal{ R}_{CP+}=~1.164 \pm 0.081 \pm 0.036 $ and $\mathcal{ R}_{CP-} =~1.151 \pm 0.074 \pm 0.019$. The first contribution to the uncertainties is statistical, and the second is systematic. The asymmetries $\mathcal{A}_{CP +}$ and $\mathcal{A}_{CP -}$ have similar magnitudes and opposite signs; their difference corresponds to 3.5~standard deviations. From these values we calculate 68.3\% confidence intervals of ($8.5^{\circ}<\phi_{3}<16.5^{\circ}$) or ($84.5^{\circ}<\phi_{3}<95.5^{\circ}$) or ($163.3^{\circ}<\phi_{3}<171.5^{\circ}$) and $0.321<r_{B}<0.465$.
Tests of light-lepton universality in angular asymmetries of $B^0 \to D^{*-} \ell \nu$ decays
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, J. Baudot, et al (399)
Aug 07 2023 hep-ex arXiv:2308.02023v3

@misc{2308.02023, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and A.~Heidelbach and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and H.~Junkerkalefeld and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and J.~Kumar and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and Y.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and A.~C.~Manthei and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and G.~Nazaryan and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and M.~Schnepf and C.~Schwanda and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and C.~P.~Shen and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and M.~Veronesi and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and E.~Waheed and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and L.~Zani and Y.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{T}ests of light-lepton universality in angular asymmetries of ${B}^0 \to {D}^{*-} \ell \nu$ decays}, year = {2023}, eprint = {2308.02023}, howpublished = {Phys. Rev. Lett. 131, 181801 (Published 31 October 2023)}, doi = {10.1103/PhysRevLett.131.181801}, note = {arXiv:2308.02023v3} }
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We present the first comprehensive tests of light-lepton universality in the angular distributions of semileptonic $B^0$-meson decays to charged spin-1 charmed mesons. We measure five angular-asymmetry observables as functions of the decay recoil that are sensitive to lepton-universality-violating contributions. We use events where one neutral $B$ is fully reconstructed in $\Upsilon\left(4S\right)\to{}B \overline{B}$ decays in data corresponding to $189~\mathrm{fb}^{-1}$ integrated luminosity from electron-positron collisions collected with the Belle II detector. We find no significant deviation from the standard model expectations.
Measurement of $CP$ asymmetries in $B^0\to \phi K^0_S$ decays with Belle II
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, et al (415)
Jul 07 2023 hep-ex arXiv:2307.02802v2

@misc{2307.02802, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and P.~K.~Behera and J.~V.~Bennett and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and P.~Cheema and V.~Chekelian and C.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and K.~Hara and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and P.~Horak and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and Y.~Kulii and T.~Kuhr and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and F.~R.~Le Diberder and M.~J.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and A.~Lozar and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and M.~Nakao and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and C.~Niebuhr and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and M.~Schnepf and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and M.~Veronesi and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and H.~M.~Wakeling and S.~Wallner and E.~Wang and M.-Z.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova}, title = {{M}easurement of ${CP}$ asymmetries in ${B}^0\to \phi {K}^0_{S}$ decays with {B}elle {II}}, year = {2023}, eprint = {2307.02802}, howpublished = {Phys. Rev. D 108, 072012 (2023)}, doi = {10.1103/PhysRevD.108.072012}, note = {arXiv:2307.02802v2} }
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We present a measurement of time-dependent rate asymmetries in $B^0\to \phi K^0_S$ decays to search for non-standard-model physics in $b\to q \overline{q}s$ transitions. The data sample is collected with the Belle II detector at the SuperKEKB asymmetric-energy $e^{+}e^{-}$ collider in 2019-2022 and contains $(387\pm 6)\times 10^6$ bottom-antibottom mesons from $\Upsilon(4S)$ resonance decays. We reconstruct $162\pm17$ signal events and extract the charge-parity ($CP$) violating parameters from a fit to the distribution of the proper-decay-time difference of the two $B$ mesons. The measured direct and mixing-induced $CP$ asymmetries are $A=0.31\pm0.20\pm0.05$ and $S=0.54\pm0.26^{+0.06}_{-0.08}$, respectively, where the first uncertainties are statistical and the second are systematic. The results are compatible with the $CP$ asymmetries observed in $b\to c\overline{c} s$ transitions.
Search for a $\tau^+\tau^-$ resonance in $e^{+}e^{-}\rightarrow \mu^{+}\mu^{-} \tau^+\tau^-$ events with the Belle II experiment
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, et al (447)
Jun 22 2023 hep-ex arXiv:2306.12294v2

@misc{2306.12294, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and Y.~Q.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and S.~Halder and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and H.~Kakuno and M.~Kaleta and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and R.~Karl and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and A.~Lozar and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~C.~Manthei and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and H.~Miyake and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and M.~Nakao and H.~Nakayama and H.~Nakazawa and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and C.~Niebuhr and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and J.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and A.~Ramirez Morales and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and J.~Schueler and C.~Schwanda and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and C.~P.~Shen and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and Y.~Sue and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and F.~Tenchini and A.~Thaller and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and A.~Vossen and B.~Wach and M.~Wakai and H.~M.~Wakeling and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and Y.~M.~Yook and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and Y.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{S}earch for a $\tau^+\tau^-$ resonance in $e^{+}e^{-}\rightarrow \mu^{+}\mu^{-} \tau^+\tau^-$ events with the {B}elle {II} experiment}, year = {2023}, eprint = {2306.12294}, howpublished = {Phys. Rev. Lett. 131, 121802 (2023)}, doi = {10.1103/PhysRevLett.131.121802}, note = {arXiv:2306.12294v2} }
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We report the first search for a non-standard-model resonance decaying into $\tau$ pairs in $e^{+}e^{-}\rightarrow \mu^{+}\mu^{-} \tau^+\tau^-$ events in the 3.6-10 GeV/$c^{2}$ mass range. We use a 62.8 fb$^{-1}$ sample of $e^+e^-$ collisions collected at a center-of-mass energy of 10.58 GeV by the Belle II experiment at the SuperKEKB collider. The analysis probes three different models predicting a spin-1 particle coupling only to the heavier lepton families, a Higgs-like spin-0 particle that couples preferentially to charged leptons (leptophilic scalar), and an axion-like particle, respectively. We observe no evidence for a signal and set exclusion limits at 90% confidence level on the product of cross section and branching fraction into $\tau$ pairs, ranging from 0.7 fb to 24 fb, and on the couplings of these processes. We obtain world-leading constraints on the couplings for the leptophilic scalar model for masses above 6.5 GeV/$c^2$ and for the axion-like particle model over the entire mass range.
Search for a long-lived spin-0 mediator in $b\to s$ transitions at the Belle II experiment
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, J. Baudot, et al (394)
Jun 06 2023 hep-ex arXiv:2306.02830v2

@misc{2306.02830, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and T.~Grammatico and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and Y.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and G.~Nazaryan and C.~Niebuhr and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and C.~Schwanda and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and M.~Veronesi and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and L.~Zani and Y.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{S}earch for a long-lived spin-0 mediator in $b\to s$ transitions at the {B}elle {II} experiment}, year = {2023}, eprint = {2306.02830}, howpublished = {Phys.Rev.D 108 (2023) L111104, 2023}, doi = {10.1103/PhysRevD.108.L111104}, note = {arXiv:2306.02830v2} }
PDF
Additional spin-0 particles appear in many extensions of the standard model. We search for long-lived spin-0 particles $S$ in $B$-meson decays mediated by a $b\to s$ quark transition in $e^+e^-$ collisions at the $\Upsilon(4S)$ resonance at the Belle II experiment. Based on a sample corresponding to an integrated luminosity of $189 \mathrm{\,fb}^{-1}$, we observe no evidence for signal. We set model-independent upper limits on the product of branching fractions $\mathrm{Br}(B^0\to K^*(892)^0(\to K^+\pi^-)S)\times \mathrm{Br}(S\to x^+x^-)$ and $\mathrm{Br}(B^+\to K^+S)\times \mathrm{Br}(S\to x^+x^-)$, where $x^+x^-$ indicates $e^+e^-, \mu^+\mu^-, \pi^+\pi^-$, or $K^+K^-$, as functions of $S$ mass and lifetime at the level of $10^{-7}$.
Measurement of $C\!P$ asymmetries and branching-fraction ratios for $B^\pm \to DK^\pm$ and $D\pi^\pm$ with $D\to K^0_{\rm S} K^\pm\pi^\mp$ using Belle and Belle II data
Belle, Belle II Collaboration, I. Adachi, L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, T. Aushev, V. Aushev, M. Aversano, R. Ayad, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, J. Baudot, et al (390)
Jun 06 2023 hep-ex arXiv:2306.02940v2

@misc{2306.02940, author = {Belle and Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and T.~Aushev and V.~Aushev and M.~Aversano and R.~Ayad and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and K.~Hayasaka and S.~Hazra and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and W.-S.~Hou and C.-L.~Hsu and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and H.~Junkerkalefeld and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and C.~Marinas and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and G.~Nazaryan and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and G.~Schnell and M.~Schnepf and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and M.~Veronesi and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{M}easurement of ${C}\!{P}$ asymmetries and branching-fraction ratios for ${B}^\pm \to {DK}^\pm$ and ${D}\pi^\pm$ with ${D}\to {K}^0_{\rm {S}} {K}^\pm\pi^\mp$ using {B}elle and {B}elle {II} data}, year = {2023}, eprint = {2306.02940}, howpublished = {Journal of High Energy Physics 09(2023)146}, doi = {10.1007/JHEP09(2023)146}, note = {arXiv:2306.02940v2} }
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We measure $C\!P$ asymmetries and branching-fraction ratios for $B^\pm \to DK^\pm$ and $D\pi^\pm$ decays with $D\to K^0_{\rm S} K^\pm\pi^\mp$, where $D$ is a superposition of $D^0$ and $\bar{D}^0$. We use the full data set of the Belle experiment, containing $772\times 10^6~B\bar{B}$ pairs, and data from the Belle~II experiment, containing $387\times 10^6~B\bar{B}$ pairs, both collected in electron-positron collisions at the $\Upsilon(4S)$ resonance. Our results provide model-independent information on the unitarity triangle angle $\phi_3$.
Precise measurement of the $D^+_s$ lifetime at Belle II
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, J. Baudot, M. Bauer, et al (342)
Jun 02 2023 hep-ex arXiv:2306.00365v2

@misc{2306.00365, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and D.~Bodrov and A.~Bondar and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and P.~Cheema and V.~Chekelian and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and S.~Das and F.~Dattola and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and D.~Epifanov and P.~Feichtinger and D.~Ferlewicz and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and W.~Gradl and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and Y.~Han and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and I.~Heredia de la Cruz and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and H.~Junkerkalefeld and A.~B.~Kaliyar and J.~Kandra and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and P.~M.~Lewis and L.~K.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and G.~Nazaryan and N.~K.~Nisar and S.~Nishida and H.~Ono and F.~Otani and E.~R.~Oxford and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and P.~Rados and G.~Raeuber and S.~Raiz and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and Z.~S.~Stottler and R.~Stroili and M.~Sumihama and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and O.~Tittel and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and K.~E.~Varvell and M.~Veronesi and V.~S.~Vismaya and L.~Vitale and R.~Volpe and B.~Wach and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and Y.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{P}recise measurement of the ${D}^+_s$ lifetime at {B}elle {II}}, year = {2023}, eprint = {2306.00365}, howpublished = {Phys. Rev. Lett. 131, 171803 (2023)}, doi = {10.1103/PhysRevLett.131.171803}, note = {arXiv:2306.00365v2} }
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We measure the lifetime of the $D_s^+$ meson using a data sample of 207 fb$^{-1}$ collected by the Belle II experiment running at the SuperKEKB asymmetric-energy $e^+ e^-$ collider. The lifetime is determined by fitting the decay-time distribution of a sample of $116\times 10^3$ $D_s^+\rightarrow\phi\pi^+$ decays. Our result is $\tau^{}_{D^+_s} = (499.5\pm 1.7\pm 0.9)$ fs, where the first uncertainty is statistical and the second is systematic. This result is significantly more precise than previous measurements.
Evidence for $B^0 \to p\bar{\Sigma}^0\pi^-$ at Belle
Belle Collaboration, C.-Y. Chang, M.-Z. Wang, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, T. Aushev, R. Ayad, V. Babu, Sw. Banerjee, M. Bauer, P. Behera, K. Belous, J. Bennett, F. Bernlochner, M. Bessner, T. Bilka, D. Biswas, et al (175)
May 31 2023 hep-ex arXiv:2305.18821v2

@misc{2305.18821, author = {Belle Collaboration and C.-Y.~Chang and M.-Z.~Wang and I.~Adachi and H.~Aihara and S.~Al Said and D.~M.~Asner and H.~Atmacan and T.~Aushev and R.~Ayad and V.~Babu and Sw.~Banerjee and M.~Bauer and P.~Behera and K.~Belous and J.~Bennett and F.~Bernlochner and M.~Bessner and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and G.~Bonvicini and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and L.~Cao and D.~Červenkov and M.-C.~Chang and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and D.~Cinabro and S.~Das and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and Z.~Doležal and T.~V.~Dong and S.~Dubey and P.~Ecker and T.~Ferber and D.~Ferlewicz and B.~G.~Fulsom and V.~Gaur and A.~Garmash and A.~Giri and P.~Goldenzweig and E.~Graziani and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and S.~Halder and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and M.~T.~Hedges and D.~Herrmann and W.-S.~Hou and C.-L.~Hsu and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and W.~W.~Jacobs and S.~Jia and Y.~Jin and K.~K.~Joo and A.~B.~Kaliyar and T.~Kawasaki and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Križan and P.~Krokovny and T.~Kuhr and M.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and T.~Lam and M.~Laurenza and S.~C.~Lee and D.~Levit and L.~K.~Li and L.~Li Gioi and J.~Libby and K.~Lieret and Y.-R.~Lin and D.~Liventsev and Y.~Ma and M.~Masuda and D.~Matvienko and S.~K.~Maurya and F.~Meier and M.~Merola and F.~Metzner and R.~Mizuk and R.~Mussa and I.~Nakamura and M.~Nakao and A.~Natochii and L.~Nayak and N.~K.~Nisar and S.~Nishida and K.~Ogawa and S.~Ogawa and H.~Ono and P.~Oskin and P.~Pakhlov and G.~Pakhlova and S.~Pardi and J.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and N.~Rout and G.~Russo and S.~Sandilya and A.~Sangal and L.~Santelj and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and W.~Shan and M.~Shapkin and C.~Sharma and J.-G.~Shiu and J.~B.~Singh and A.~Sokolov and E.~Solovieva and M.~Starič and J.~F.~Strube and M.~Sumihama and W.~Sutcliffe and M.~Takizawa and K.~Tanida and F.~Tenchini and R.~Tiwary and K.~Trabelsi and M.~Uchida and Y.~Unno and S.~Uno and Y.~Usov and S.~E.~Vahsen and G.~Varner and K.~E.~Varvell and D.~Wang and E.~Wang and S.~Watanuki and O.~Werbycka and E.~Won and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and J.~H.~Yin and C.~Z.~Yuan and L.~Yuan and Y.~Yusa and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{E}vidence for ${B}^0 \to p\bar{\{S}igma}^0\pi^-$ at {B}elle}, year = {2023}, eprint = {2305.18821}, note = {arXiv:2305.18821v2} }
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We search for the $B^0\to p\bar{\Sigma}^0\pi^-$ decay with $\bar{\Sigma}^0 \to \bar{\Lambda}\gamma$, where the $\gamma$ is not measured, using a data sample corresponding to an integrated luminosity of 711 $\rm{fb^{-1}}$ which contains 772 $\times$ $10^{6}$ $B\bar{B}$ pairs, collected around the $\Upsilon$(4S) resonance with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. We measure for the first time the $B^0\to p\bar{\Sigma}^0\pi^-$ branching fraction to be $\mathcal{B}(B^0 \to p \bar\Sigma^0 \pi^-) = (1.17^{+0.43}_{-0.40}(\text{stat})\pm 0.07(\text{syst})) \times 10^{-6}$ with a significance of $3.0\sigma$. We simultaneously measure the branching fraction for the related channel $B^{0}\to p\bar{\Lambda}\pi^{-}$ with much improved precision.
Measurement of the $\tau$-lepton mass with the Belle~II experiment
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, et al (401)
May 31 2023 hep-ex arXiv:2305.19116v1

@misc{2305.19116, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and F.~Becherer and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and H.~Ghumaryan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and O.~Gogota and P.~Goldenzweig and P.~Grace and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and C.-L.~Hsu and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and J.~Kumar and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and Y.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and C.~Niebuhr and N.~K.~Nisar and S.~Nishida and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and C.~P.~Shen and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and I.~Ueda and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and M.~Veronesi and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and R.~Volpe and B.~Wach and M.~Wakai and S.~Wallner and E.~Wang and M.-Z.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{M}easurement of the $\tau$-lepton mass with the {B}elle~{II} experiment}, year = {2023}, eprint = {2305.19116}, note = {arXiv:2305.19116v1} }
PDF
We present a measurement of the $\tau$-lepton mass using a sample of about 175 million $e^+e^- \to \tau^+\tau^-$ events collected with the Belle II detector at the SuperKEKB $e^+e^-$ collider at a center-of-mass energy of $10.579\,\mathrm{Ge\kern -0.1em V}$. This sample corresponds to an integrated luminosity of $190\,\mathrm{fb^{-1}}$. We use the kinematic edge of the $\tau $ pseudomass distribution in the decay ${\tau^-\to\pi^-\pi^+\pi^-\nu_\tau}$ and measure the $\tau$ mass to be $1777.09 \pm 0.08 \pm 0.11 \,\mathrm{Me\kern -0.1em V\!/c^2}$, where the first uncertainty is statistical and the second systematic. This result is the most precise to date.
Search for $C\!P$ violation using $T$-odd correlations in $D_{(s)}^{+}\to K^{+} K^{-}\pi^{+}\pi^{0}$, $D_{(s)}^{+}\to K^{+} \pi^{-}\pi^{+}\pi^{0}$, and $D^{+}\to K^{-}\pi^{+}\pi^{+}\pi^{0}$ decays
Belle Collaboration, L. K. Li, A. J. Schwartz, E. Won, K. Kinoshita, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, V. Aulchenko, T. Aushev, V. Babu, Sw. Banerjee, P. Behera, K. Belous, J. Bennett, M. Bessner, T. Bilka, D. Biswas, A. Bobrov, et al (157)
May 23 2023 hep-ex arXiv:2305.12806v1

@misc{2305.12806, author = {Belle Collaboration and L.~K.~Li and A.~J.~Schwartz and E.~Won and K.~Kinoshita and I.~Adachi and H.~Aihara and S.~Al Said and D.~M.~Asner and V.~Aulchenko and T.~Aushev and V.~Babu and Sw.~Banerjee and P.~Behera and K.~Belous and J.~Bennett and M.~Bessner and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and G.~Bonvicini and J.~Borah and M.~Bračko and P.~Branchini and A.~Budano and D.~Červenkov and M.-C.~Chang and B.~G.~Cheon and H.~E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and D.~Cinabro and J.~Cochran and S.~Das and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and S.~Dubey and D.~Epifanov and A.~Frey and B.~G.~Fulsom and V.~Gaur and A.~Giri and P.~Goldenzweig and G.~Gong and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and T.~Hara and K.~Hayasaka and H.~Hayashii and D.~Herrmann and W.-S.~Hou and C.-L.~Hsu and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and J.~Kahn and A.~B.~Kaliyar and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.~J.~Kim and Y.-K.~Kim and H.~Kindo and P.~Kodyš and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Križan and P.~Krokovny and M.~Kumar and R.~Kumar and K.~Kumara and Y.-J.~Kwon and Y.~T.~Lai and T.~Lam and S.~C.~Lee and Y.~Li and J.~Libby and K.~Lieret and Y.-R.~Lin and D.~Liventsev and Y.~Ma and M.~Masuda and T.~Matsuda and D.~Matvienko and S.~K.~Maurya and F.~Meier and M.~Merola and F.~Metzner and R.~Mizuk and G.~B.~Mohanty and M.~Nakao and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and P.~Oskin and G.~Pakhlova and S.~Pardi and H.~Park and J.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and G.~Russo and S.~Sandilya and A.~Sangal and L.~Santelj and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and M.~E.~Sevior and W.~Shan and M.~Shapkin and C.~Sharma and J.-G.~Shiu and B.~Shwartz and E.~Solovieva and M.~Starič and Z.~S.~Stottler and M.~Sumihama and M.~Takizawa and K.~Tanida and F.~Tenchini and M.~Uchida and T.~Uglov and Y.~Unno and K.~Uno and S.~Uno and G.~Varner and K.~E.~Varvell and A.~Vinokurova and D.~Wang and E.~Wang and X.~L.~Wang and S.~Watanuki and O.~Werbycka and X.~Xu and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and J.~H.~Yin and Y.~Yook and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{S}earch for ${C}\!{P}$ violation using ${T}$-odd correlations in ${D}_{(s)}^{+}\to {K}^{+} {K}^{-}\pi^{+}\pi^{0}$, ${D}_{(s)}^{+}\to {K}^{+} \pi^{-}\pi^{+}\pi^{0}$, and ${D}^{+}\to {K}^{-}\pi^{+}\pi^{+}\pi^{0}$ decays}, year = {2023}, eprint = {2305.12806}, note = {arXiv:2305.12806v1} }
PDF
We search for $C\!P$ violation using $T$-odd correlations in five $D_{(s)}^{+}$ and $D_{(s)}^{-}$ four-body decays. Our analysis is based on 980 $\rm fb^{-1}$ of data collected by the Belle detector at the KEKB energy-asymmetric $e^+e^-$ collider. Our results for the $T$-odd $C\!P$-violating parameter $a^{T\text{-odd}}_{C\!P}$ are: $a^{T\text{-odd}}_{C\!P}({D^{+}\to K^{-}K^{+}\pi^{+}\pi^{0}}) = (+2.6\pm 6.6\pm 1.3 )\times10^{-3}$, $a^{T\text{-odd}}_{C\!P}({D^{+}\to K^{+}\pi^{-}\pi^{+}\pi^{0}}) = (-1.3\pm 4.2\pm 0.1 )\times10^{-2}$, $a^{T\text{-odd}}_{C\!P}({D^{+}\to K^{-}\pi^{+}\pi^{+}\pi^{0}}) = (+0.2\pm 1.5\pm 0.8 )\times10^{-3}$, $a^{T\text{-odd}}_{C\!P}({D_s^{+}\to K^{+}\pi^{-}\pi^{+}\pi^{0}}) = (-1.1\pm 2.2\pm 0.1 )\times10^{-2}$, and $a^{T\text{-odd}}_{C\!P}({D_s^{+}\to K^{-}K^{+}\pi^{+}\pi^{0}}) = (+2.2\pm 3.3\pm 4.3 )\times10^{-3}$, where the uncertainties are statistical and systematic, respectively. These results are the first such measurements and are all consistent with zero. They include the first measurement for a $D^+_s$ singly Cabibbo-suppressed decay, and the first measurement for a $D$ meson doubly Cabibbo-suppressed decay. We also measure $a^{T\text{-odd}}_{C\!P}$ in different subregions of phase space, where the decays are dominated by different intermediate resonance states such as $D^+\to\phi\rho^+$, $\bar{K}^{*0}K^{*+}$, and $\bar{K}^{*0}\rho^+$; and $D_s^+\to K^{*+}\rho^{0}$, $K^{*0}\rho^{+}$, $\phi\rho^+$, and $\bar{K}^{*0}K^{*+}$. No evidence for $C\!P$ violation is found.
Measurement of the $e^+e^- \to B_s^0 \bar{B}_s^0 X$ cross section in the energy range from $10.63$ to $11.02$ GeV using inclusive $D_s^{\pm}$ and $D^0$ production
Belle Collaboration, V. Zhukova, R. Mizuk, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, Sw. Banerjee, M. Bauer, P. Behera, K. Belous, J. Bennett, F. Bernlochner, M. Bessner, T. Bilka, et al (171)
May 18 2023 hep-ex arXiv:2305.10098v2

@misc{2305.10098, author = {Belle Collaboration and V.~Zhukova and R.~Mizuk and I.~Adachi and H.~Aihara and S.~Al Said and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and R.~Ayad and V.~Babu and Sw.~Banerjee and M.~Bauer and P.~Behera and K.~Belous and J.~Bennett and F.~Bernlochner and M.~Bessner and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and M.~Campajola and L.~Cao and D.~Červenkov and M.-C.~Chang and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and D.~Cinabro and S.~Das and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and T.~V.~Dong and S.~Dubey and P.~Ecker and D.~Epifanov and T.~Ferber and D.~Ferlewicz and B.~G.~Fulsom and V.~Gaur and A.~Garmash and A.~Giri and P.~Goldenzweig and T.~Gu and K.~Gudkova and C.~Hadjivasiliou and T.~Hara and K.~Hayasaka and S.~Hazra and M.~T.~Hedges and D.~Herrmann and W.-S.~Hou and C.-L.~Hsu and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and W.~W.~Jacobs and E.-J.~Jang and S.~Jia and Y.~Jin and K.~K.~Joo and A.~B.~Kaliyar and T.~Kawasaki and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Križan and P.~Krokovny and M.~Kumar and R.~Kumar and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and T.~Lam and M.~Laurenza and S.~C.~Lee and D.~Levit and L.~K.~Li and J.~Libby and K.~Lieret and D.~Liventsev and Y.~Ma and M.~Masuda and T.~Matsuda and S.~K.~Maurya and F.~Meier and M.~Merola and F.~Metzner and K.~Miyabayashi and G.~B.~Mohanty and I.~Nakamura and T.~Nakano and M.~Nakao and Z.~Natkaniec and A.~Natochii and L.~Nayak and N.~K.~Nisar and S.~Nishida and K.~Ogawa and S.~Ogawa and H.~Ono and P.~Oskin and P.~Pakhlov and G.~Pakhlova and T.~Pang and S.~Pardi and H.~Park and J.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Pestotnik and L.~E.~Piilonen and T.Podobnik and E.~Prencipe and M.~T.~Prim and N.~Rout and G.~Russo and D.~Sahoo and Y.~Sakai and S.~Sandilya and L.~Santelj and V.~Savinov and G.~Schnell and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and K.~Senyo and W.~Shan and M.~Shapkin and C.~Sharma and J.-G.~Shiu and A.~Sokolov and E.~Solovieva and M.~Starič and Z.~S.~Stottler and M.~Sumihama and W.~Sutcliffe and M.~Takizawa and K.~Tanida and F.~Tenchini and R.~Tiwary and K.~Trabelsi and M.~Uchida and Y.~Unno and S.~Uno and Y.~Usov and S.~E.~Vahsen and G.~Varner and A.~Vinokurova and D.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and M.~Watanabe and S.~Watanuki and O.~Werbycka and E.~Won and B.~D.~Yabsley and W.~Yan and J.~H.~Yin and C.~Z.~Yuan and L.~Yuan and Z.~P.~Zhang and V.~Zhilich}, title = {{M}easurement of the $e^+e^- \to {B}_s^0 \bar{{B}}_s^0 {X}$ cross section in the energy range from $10.63$ to $11.02$ {G}e{V} using inclusive ${D}_s^{\pm}$ and ${D}^0$ production}, year = {2023}, eprint = {2305.10098}, doi = {10.1007/JHEP08(2023)131}, note = {arXiv:2305.10098v2} }
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We report the first measurement of the inclusive $e^+e^- \to b\bar{b} \to D_s^{\pm}X$ and $e^+e^- \to b\bar{b} \to D^0/\bar{D}^0X$ cross sections in the energy range from $10.63$ to $11.02$. Based on these results, we determine $\sigma(e^+ e^- \to B_s^0 \bar{B}_s^0 X)$ and $\sigma(e^+ e^- \to B\bar{B}X)$ in the same energy range. We measure the fraction of $B_s^0$ events at $\Upsilon(10860)$ to be $f_{\rm s}=(22.0^{+2.0}_{-2.1})\%$. We determine also the ratio of the $B_s^0$ inclusive branching fractions $\mathcal{B}(B_s^0 \to D^0/\bar{D}^0X)/\mathcal{B}(B_s^0 \to D_s^{\pm} X)=0.416 \pm 0.018 \pm 0.092$. The results are obtained using the data collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider.
Measurement of $C\!P$ violation in $B^{0}\rightarrow K_{S}^{0}\pi^{0}$ decays at Belle II
Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, et al (382)
May 15 2023 hep-ex arXiv:2305.07555v2

@misc{2305.07555, author = {Belle II Collaboration and I.~Adachi and K.~Adamczyk and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and J.~Becker and P.~K.~Behera and J.~V.~Bennett and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and D.~Bodrov and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and D.~Ghosh and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and K.~Hara and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and C.-L.~Hsu and T.~Humair and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and M.~Kaleta and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and S.~Kar and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and H.~Kindo and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and J.~Kumar and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and J.~S.~Lange and M.~Laurenza and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and C.~Li and L.~K.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and M.~Mrvar and R.~Mussa and I.~Nakamura and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and N.~K.~Nisar and S.~Nishida and H.~Ono and Y.~Onuki and P.~Oskin and P.~Pakhlov and G.~Pakhlova and A.~Paladino and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and B.~Wach and M.~Wakai and H.~M.~Wakeling and S.~Wallner and E.~Wang and M.-Z.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhang and V.~Zhilich and Q.~D.~Zhou and V.~I.~Zhukova}, title = {{M}easurement of ${C}\!{P}$ violation in ${B}^{0}\rightarrow {K}_{{S}}^{0}\pi^{0}$ decays at {B}elle {II}}, year = {2023}, eprint = {2305.07555}, howpublished = {PRL 131, 111803 (2023)}, doi = {10.1103/PhysRevLett.131.111803}, note = {arXiv:2305.07555v2} }
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We report a measurement of the $C\!P$-violating parameters $A$ and $S$ in $B^{0}\to K_{S}^{0} \pi^{0}$ decays at Belle II using a sample of $387\times 10^{6}$ $B\bar{B}$ events recorded in $e^{+}e^{-}$ collisions at a center-of-mass energy corresponding to the $\Upsilon(4S)$ resonance. These parameters are determined by fitting the proper decay-time distribution of a sample of 415 signal events. We obtain $A = 0.04^{+0.15}_{-0.14}\pm 0.05$ and $S = 0.75^{+0.20}_{-0.23}\pm 0.04$, where the first uncertainties are statistical and the second are systematic.
Search for lepton-flavor-violating $\tau^- \to \ell^-\phi$ decays in 2019-2021 Belle II data
Belle II Collaboration, F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, M. Aversano, V. Babu, et al (560)
May 09 2023 hep-ex arXiv:2305.04759v3

@misc{2305.04759, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and S.~Bacher and H.~Bae and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and G.~Gong and P.~Grace and W.~Gradl and M.~Graf-Schreiber and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and S.~Halder and Y.~Han and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and H.~Kakuno and M.~Kaleta and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and T.~Kawasaki and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and Y.-K.~Kim and Y.~J.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and J.~F.~Krohn and P.~Krokovny and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and A.~Lozar and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~C.~Manthei and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.~Moon and H.-G.~Moser and M.~Mrvar and Th.~Muller and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and A.~Ramirez Morales and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and P.~Rocchetti and D.~Rodríguez Pérez and M.~Roehrken and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and J.~Schmitz and M.~Schnepf and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and V.~Shebalin and C.~P.~Shen and X.~D.~Shi and H.~Shibuya and T.~Shillington and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and M.~Wakai and H.~M.~Wakeling and S.~Wallner and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and O.~Werbycka and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and Y.~Xie and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and Y.~M.~Yook and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{S}earch for lepton-flavor-violating $\tau^- \to \ell^-\phi$ decays in 2019-2021 {B}elle {II} data}, year = {2023}, eprint = {2305.04759}, note = {arXiv:2305.04759v3} }
PDF
We report a search for lepton-flavor-violating decays $\tau^- \to \ell^- \phi$ ($\ell^- =e^-,\mu^-$) at the Belle II experiment, using a sample of electron-positron data produced at the SuperKEKB collider in 2019-2021 and corresponding to an integrated luminosity of 190 fb$^{-1}$. We use a new untagged selection for $e^+e^- \to \tau^+\tau^-$ events, where the signal $\tau$ is searched for as a neutrinoless final state of a single charged lepton and a $\phi$ meson and the other $\tau$ is not reconstructed in any specific decay mode, in contrast to previous measurements by the BaBar and Belle experiments. We find no evidence for $\tau^- \to \ell^- \phi$ decays and obtain upper limits on the branching fractions at 90% confidence level of 23 $\times 10^{-8}$ and 9.7$\times 10^{-8}$ for $\tau^- \rightarrow e^-\phi$ and $\tau^- \rightarrow \mu^-\phi$, respectively
Observation of ${B\to D^{(*)} K^- K^{0}_S}$ decays using the 2019-2022 Belle II data sample
Belle II Collaboration, F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, M. Aversano, V. Babu, et al (560)
May 03 2023 hep-ex arXiv:2305.01321v1

@misc{2305.01321, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and S.~Bacher and H.~Bae and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and J.~Cochran and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and G.~Gaudino and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and G.~Gong and P.~Grace and W.~Gradl and M.~Graf-Schreiber and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and S.~Halder and Y.~Han and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and H.~Kakuno and M.~Kaleta and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and T.~Kawasaki and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and Y.-K.~Kim and Y.~J.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and J.~F.~Krohn and P.~Krokovny and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and A.~Lozar and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and M.~Maggiora and S.~P.~Maharana and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~C.~Manthei and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.~Moon and H.-G.~Moser and M.~Mrvar and Th.~Muller and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and A.~Ramirez Morales and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and P.~Rocchetti and D.~Rodríguez Pérez and M.~Roehrken and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and J.~Schmitz and M.~Schnepf and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and V.~Shebalin and C.~P.~Shen and X.~D.~Shi and H.~Shibuya and T.~Shillington and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and P.~Stavroulakis and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and M.~Wakai and H.~M.~Wakeling and S.~Wallner and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and O.~Werbycka and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and Y.~Xie and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and Y.~M.~Yook and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{O}bservation of ${{B}\to {D}^{(*)} {K}^- {K}^{0}_{S}}$ decays using the 2019-2022 {B}elle {II} data sample}, year = {2023}, eprint = {2305.01321}, note = {arXiv:2305.01321v1} }
PDF
We present a measurement of the branching fractions of four $B^{0,-}\to D^{(*)+,0} K^- K^{0}_S$ decay modes. The measurement is based on data from SuperKEKB electron-positron collisions at the $\Upsilon(4S)$ resonance collected with the Belle II detector and corresponding to an integrated luminosity of ${362~\text{fb}^{-1}}$. The event yields are extracted from fits to the distributions of the difference between expected and observed $B$ meson energy to separate signal and background, and are efficiency-corrected as a function of the invariant mass of the $K^-K_S^0$ system. We find the branching fractions to be: \[ \textB(B^-\to D^0K^-K_S^0)=(1.89\pm 0.16\pm 0.10)\times 10^-4, \] \[ \textB(\overline B^0\to D^+K^-K_S^0)=(0.85\pm 0.11\pm 0.05)\times 10^-4,\] \[ \textB(B^-\to D^*0K^-K_S^0)=(1.57\pm 0.27\pm 0.12)\times 10^-4, \] \[ \textB(\overline B^0\to D^*+K^-K_S^0)=(0.96\pm 0.18\pm 0.06)\times 10^-4,\]where the first uncertainty is statistical and the second systematic. These results include the first observation of $\overline B{}^0\to D^+K^-K_S^0$, $B^-\to D^{*0}K^-K_S^0$, and $\overline B{}^0\to D^{*+}K^-K_S^0$ decays and a significant improvement in the precision of $\text{B}(B^-\to D^0K^-K_S^0)$ compared to previous measurements.
Novel method for the identification of the production flavor of neutral charmed mesons
Belle II Collaboration, I. Adachi, L. Aggarwal, H. Ahmed, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, M. Aversano, V. Babu, H. Bae, S. Bahinipati, P. Bambade, Sw. Banerjee, M. Barrett, J. Baudot, et al (379)
Apr 06 2023 hep-ex arXiv:2304.02042v2

@misc{2304.02042, author = {Belle II Collaboration and I.~Adachi and L.~Aggarwal and H.~Ahmed and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and M.~Aversano and V.~Babu and H.~Bae and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and M.~Barrett and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and J.~Becker and P.~K.~Behera and J.~V.~Bennett and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and R.~A.~Briere and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and L.~Corona and L.~M.~Cremaldi and S.~Das and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and A.~Gabrielli and E.~Ganiev and M.~Garcia-Hernandez and G.~Gaudino and V.~Gaur and A.~Gaz and A.~Gellrich and G.~Ghevondyan and D.~Ghosh and G.~Giakoustidis and R.~Giordano and A.~Giri and B.~Gobbo and R.~Godang and P.~Goldenzweig and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and S.~Halder and Y.~Han and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and C.-L.~Hsu and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and A.~Johnson and K.~K.~Joo and H.~Junkerkalefeld and H.~Kakuno and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and G.~Karyan and T.~Kawasaki and F.~Keil and C.~Ketter and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and M.~Kumar and K.~Kumara and T.~Kunigo and A.~Kuzmin and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and R.~Leboucher and F.~R.~Le Diberder and P.~Leitl and D.~Levit and C.~Li and L.~K.~Li and J.~Libby and Q.~Y.~Liu and Z.~Q.~Liu and S.~Longo and A.~Lozar and T.~Lueck and C.~Lyu and Y.~Ma and M.~Maggiora and R.~Maiti and S.~Maity and G.~Mancinelli and R.~Manfredi and E.~Manoni and A.~C.~Manthei and M.~Mantovano and D.~Marcantonio and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and R.~Mehta and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and M.~Mirra and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Mondal and S.~Moneta and H.-G.~Moser and R.~Mussa and I.~Nakamura and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and M.~Niiyama and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and Y.~Onuki and P.~Oskin and E.~R.~Oxford and P.~Pakhlov and G.~Pakhlova and A.~Paladino and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Peschke and R.~Pestotnik and M.~Piccolo and L.~E.~Piilonen and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and G.~Raeuber and S.~Raiz and M.~Reif and S.~Reiter and I.~Ripp-Baudot and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and M.~Roehrken and J.~M.~Roney and A.~Rostomyan and N.~Rout and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and C.~Schwanda and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and X.~D.~Shi and T.~Shillington and J.-G.~Shiu and D.~Shtol and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and R.~J.~Sobie and M.~Sobotzik and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and M.~Sumihama and W.~Sutcliffe and H.~Svidras and M.~Takahashi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and A.~Thaller and O.~Tittel and R.~Tiwary and D.~Tonelli and E.~Torassa and K.~Trabelsi and I.~Tsaklidis and M.~Uchida and I.~Ueda and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and V.~S.~Vismaya and L.~Vitale and V.~Vobbilisetti and B.~Wach and M.~Wakai and H.~M.~Wakeling and S.~Wallner and E.~Wang and M.-Z.~Wang and X.~L.~Wang and Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and J.~H.~Yin and Y.~M.~Yook and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and V.~I.~Zhukova}, title = {{N}ovel method for the identification of the production flavor of neutral charmed mesons}, year = {2023}, eprint = {2304.02042}, note = {arXiv:2304.02042v2} }
PDF
We propose a new algorithm for the identification of the production flavor of neutral $D$ mesons in the Belle II experiment. The algorithm exploits the correlation between the flavor of a reconstructed neutral $D$ meson (signal $D$ meson) and the electric charges of particles reconstructed in the rest of the $e^+e^-\to c \bar{c}$ event. These include those originating from the decay of the other charm hadron produced in the event, as well as those possibly produced in association with the signal $D$ meson. We develop the algorithm using simulation and calibrate it in data using decay modes that identify the flavor of the decaying neutral $D$ meson. We use a data sample of $e^+e^-$ collisions, corresponding to $362\,\mathrm{fb}^{-1}$ of integrated luminosity, collected by Belle II at center-of-mass energies near the $\Upsilon(4S)$ mass. The effective tagging efficiency in data is $(47.91 \pm 0.07 \mathrm{(stat)} \pm 0.51 \mathrm{(syst)})\%$, independent of the neutral-$D$-meson decay mode. This charm flavor tagger will approximately double the effective sample size of many $CP$-violation and charm-mixing measurements that so far have exclusively relied on neutral $D$ mesons originating from $D^{*\pm}$ decays. While developed for Belle II, the basic principles underlying the charm flavor tagger can be used in other experiments, including those at hadron colliders.
Measurement of the $B^{0} \rightarrow D^{*-} \ell^{+} \nu_{\ell}$ branching ratio and $|V_{cb}|$ with a fully reconstructed accompanying $B$ meson in 2019-2021 Belle II data
F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, T. Aziz, V. Babu, et al (566)
Jan 13 2023 hep-ex arXiv:2301.04716v1

@misc{2301.04716, author = {F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and G.~Ghevondyan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~Manthei and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and A.~Narimani Charan and M.~Naruki and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{M}easurement of the ${B}^{0} \rightarrow {D}^{*-} \ell^{+} \nu_{\ell}$ branching ratio and $|{V}_{cb}|$ with a fully reconstructed accompanying ${B}$ meson in 2019-2021 {B}elle {II} data}, year = {2023}, eprint = {2301.04716}, note = {arXiv:2301.04716v1} }
PDF
We present a measurement of the $B^{0} \rightarrow D^{*-} \ell^{+} \nu_{\ell}$ ($\ell=e,\mu$) branching ratio and of the CKM parameter $|V_{cb}|$ using signal decays accompanied by a fully reconstructed $B$ meson. The Belle II data set of electron-positron collisions at the $\Upsilon(4S)$ resonance, corresponding to 189.3$\,$fb$^{-1}$ of integrated luminosity, is analyzed. With the Caprini-Lellouch-Neubert form factor parameterization, the parameters $\eta_{\rm EW} F(1) |V_{cb}|$ and $\rho^{2}$ are extracted, where $\eta_{\rm EW}$ is an electroweak correction, $F(1)$ is a normalization factor and $\rho^{2}$ is a form factor shape parameter. We reconstruct 516 signal decays and thereby obtain $\mathcal{B} (B^{0} \rightarrow D^{*-} \ell^{+} \nu_{\ell} ) = \left(5.27 \pm 0.22~\rm{\left(stat\right)} \pm 0.38~\rm{\left(syst\right)}\right) \%$, $\eta_{EW} F(1) |V_{cb}| \times 10^{3} = 34.6 \pm 1.8~\rm{\left(stat\right)} \pm 1.7~\rm{\left(syst\right)}$, and $\rho^{2} = 0.94 \pm 0.18~\rm{\left(stat\right)} \pm 0.11~\rm{\left(syst\right)}$.
Hot and Cold QCD White Paper from ALICE-USA: Input for 2023 U.S. Long Range Plan for Nuclear Science
N. Alizadehvandchali, N. Apadula, M. Arslandok, C. Beattie, R. Bellwied, J. T. Blair, F. Bock, H. Bossi, A. Bylinkin, H. Caines, I. Chakaberia, M. Cherney, T. M. Cormier, R. Cruz-Torres, P. Dhankher, D. U. Dixit, R. J. Ehlers, W. Fan, M. Fasel, F. Flor, et al (63)
Dec 02 2022 nucl-ex hep-ex arXiv:2212.00512v1

@misc{2212.00512, author = {N.~Alizadehvandchali and N.~Apadula and M.~Arslandok and C.~Beattie and R.~Bellwied and J.~T.~Blair and F.~Bock and H.~Bossi and A.~Bylinkin and H.~Caines and I.~Chakaberia and M.~Cherney and T.~M.~Cormier and R.~Cruz-Torres and P.~Dhankher and D.~U.~Dixit and R.~J.~Ehlers and W.~Fan and M.~Fasel and F.~Flor and A.~N.~Flores and D.~R.~Gangadharan and E.~Garcia-Solis and A.~Gautam and E.~Glimos and V.~Gonzalez and A.~Hamdi and R.~Hannigan and J.~W.~Harris and A.~Harton and H.~Hassan and L.~B.~Havener and C.~Hughes and T.~J.~Humanic and A.~Hutson and T.~Isidori and B.~Jacak and P.~M.~Jacobs and F.~Jonas and A.~Khatun and M.~Kim and J.~L.~Klay and S.~Klein and A.~G.~Knospe and Y.~S.~Lai and E.~D.~Lesser and I.~Likmeta and A.~Liu and C.~Loizides and C.~Markert and J.~L.~Martinez and A.~S.~Menon and J.~D.~Mulligan and A.~I.~Nambrath and C.~Nattrass and N.~Novitzky and A.~C.~Oliveira Da Silva and M.~H.~Oliver and L.~Pinsky and M.~Ploskon and M.~G.~Poghosyan and C.~A.~Pruneau and R.~E.~Quishpe and S.~Ragoni and K.~F.~Read and O.~V.~Rueda and D.~Sarkar and M.~H.~P.~Sas and J.~Schambach and N.~V.~Schmidt and A.~R.~Schmier and J.~E.~Seger and O.~Sheibani and N.~Smirnov and J.~Song and P.~J.~Steffanic and J.~D.~Tapia Takaki and C.~Terrevoli and D.~Thomas and A.~R.~Timmins and S.~A.~Voloshin and S.~L.~Weyhmiller and J.~R.~Wright}, title = {{H}ot and {C}old {QCD} {W}hite {P}aper from {ALICE}-{USA}: {I}nput for 2023 {U}.{S}. {L}ong {R}ange {P}lan for {N}uclear {S}cience}, year = {2022}, eprint = {2212.00512}, note = {arXiv:2212.00512v1} }
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The ALICE-USA collaboration presents its plans for the 2023 U.S. Long Range Plan for Nuclear Science.
Reconstruction of $B \to \rho \ell \nu_\ell$ decays identified using hadronic decays of the recoil $B$ meson in 2019 -- 2021 Belle II data
Belle II Collaboration, F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, V. Babu, et al (565)
Nov 29 2022 hep-ex arXiv:2211.15270v1

@misc{2211.15270, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and V.~Babu and S.~Bacher and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and J.~Cerasoli and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and G.~Ghevondyan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and G.~Gong and P.~Grace and W.~Gradl and T.~Grammatico and S.~Granderath and E.~Graziani and D.~Greenwald and Z.~Gruberová and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and M.~Kaleta and D.~Kalita and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and Y.-K.~Kim and Y.~J.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and Z.~Q.~Liu and D.~Liventsev and S.~Longo and A.~Lozar and T.~Lueck and T.~Luo and C.~Lyu and Y.~Ma and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~C.~Manthei and S.~Marcello and C.~Marinas and L.~Martel and C.~Martellini and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and S.~K.~Maurya and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and D.~Narwal and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and J.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and M.~Roehrken and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and J.~Schmitz and M.~Schnepf and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and W.~Shan and C.~Sharma and V.~Shebalin and C.~P.~Shen and X.~D.~Shi and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and D.~Shtol and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and F.~Tenchini and A.~Thaller and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and V.~S.~Vismaya and B.~Wach and E.~Waheed and H.~M.~Wakeling and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and O.~Werbycka and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and Y.~M.~Yook and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~S.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{R}econstruction of ${B} \to \rho \ell \nu_\ell$ decays identified using hadronic decays of the recoil ${B}$ meson in 2019 -- 2021 {B}elle {II} data}, year = {2022}, eprint = {2211.15270}, note = {arXiv:2211.15270v1} }
PDF
We present results on the semileptonic decays $B^0 \to \rho^- \ell^+ \nu_\ell$ and $B^+ \to \rho^0 \ell^+ \nu_\ell$ in a sample corresponding to 189.9/fb of Belle II data at the SuperKEKB $e^- e^+$ collider. Signal decays are identified using full reconstruction of the recoil $B$ meson in hadronic final states. We determine the total branching fractions via fits to the distributions of the square of the "missing" mass in the event and the dipion mass in the signal candidate and find ${\mathcal{B}(B^0\to\rho^-\ell^+ \nu_\ell) = (4.12 \pm 0.64(\mathrm{stat}) \pm 1.16(\mathrm{syst})) \times 10^{-4}}$ and ${\mathcal{B}({B^+\to\rho^0\ell^+\nu_\ell}) = (1.77 \pm 0.23 (\mathrm{stat}) \pm 0.36 (\mathrm{syst})) \times 10^{-4}}$ where the dominant systematic uncertainty comes from modeling the nonresonant $B\to (\pi\pi)\ell^+\nu_\ell$ contribution.
Study of $B^+ \rightarrow p \overline{n} \pi^0$
Belle Collaboration, K.-N. Chu, Y.-R. Lin, M.-Z. Wang, I. Adachi, K. Adamczyk, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, Sw. Banerjee, P. Behera, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, et al (186)
Nov 22 2022 hep-ex arXiv:2211.11251v3

@misc{2211.11251, author = {Belle Collaboration and K.-N.~Chu and Y.-R.~Lin and M.-Z.~Wang and I.~Adachi and K.~Adamczyk and H.~Aihara and S.~Al Said and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and R.~Ayad and V.~Babu and Sw.~Banerjee and P.~Behera and K.~Belous and J.~Bennett and M.~Bessner and V.~Bhardwaj and B.~Bhuyan and T.~Bilka and D.~Biswas and D.~Bodrov and G.~Bonvicini and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and D.~Červenkov and M.-C.~Chang and P.~Chang and A.~Chen and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and D.~Cinabro and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and D.~Epifanov and T.~Ferber and D.~Ferlewicz and B.~G.~Fulsom and V.~Gaur and A.~Garmash and A.~Giri and P.~Goldenzweig and B.~Golob and E.~Graziani and T.~Gu and K.~Gudkova and C.~Hadjivasiliou and S.~Halder and X.~Han and K.~Hayasaka and H.~Hayashii and W.-S.~Hou and C.-L.~Hsu and K.~Huang and T.~Iijima and K.~Inami and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and E.-J.~Jang and Y.~Jin and K.~K.~Joo and D.~Kalita and A.~B.~Kaliyar and T.~Kawasaki and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and P.~Kodyš and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Križan and P.~Krokovny and T.~Kuhr and R.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and T.~Lam and J.~S.~Lange and S.~C.~Lee and C.~H.~Li and J.~Li and L.~K.~Li and S.~X.~Li and Y.~Li and Y.~B.~Li and L.~Li Gioi and J.~Libby and K.~Lieret and D.~Liventsev and T.~Luo and M.~Masuda and T.~Matsuda and D.~Matvienko and S.~K.~Maurya and F.~Meier and M.~Merola and F.~Metzner and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and I.~Nakamura and M.~Nakao and Z.~Natkaniec and A.~Natochii and L.~Nayak and N.~K.~Nisar and S.~Nishida and Y.~Onuki and P.~Oskin and P.~Pakhlov and G.~Pakhlova and S.~Pardi and H.~Park and J.~Park and A.~Passeri and S.~Paul and T.~K.~Pedlar and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and A.~Rostomyan and N.~Rout and G.~Russo and S.~Sandilya and L.~Santelj and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and W.~Shan and M.~Shapkin and C.~Sharma and C.~P.~Shen and J.-G.~Shiu and B.~Shwartz and F.~Simon and A.~Sokolov and E.~Solovieva and M.~Starič and Z.~S.~Stottler and J.~F.~Strube and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and K.~Trabelsi and M.~Uchida and T.~Uglov and Y.~Unno and S.~Uno and P.~Urquijo and Y.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~Varner and K.~E.~Varvell and A.~Vinokurova and A.~Vossen and S.~Watanuki and E.~Won and X.~Xu and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and C.~Z.~Yuan and L.~Yuan and Y.~Yusa and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{S}tudy of ${B}^+ \rightarrow p \overline{n} \pi^0$}, year = {2022}, eprint = {2211.11251}, note = {arXiv:2211.11251v3} }
PDF
We search for the tree-diagram dominated process $B^+ \rightarrow p \overline{n} \pi^0$, using a data sample of $772 \times 10^6~B\overline B$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. This is the first search with the Belle detector for a decay mode including an anti-neutron. No significant signal is observed and an $90\%$ credible upper limit on the branching fraction is set at $6.1\times10^{-6}$.
Determination of $|V_{cb}|$ from $B\to D\ell\nu$ decays using 2019-2021 Belle II data
Belle II collaboration, F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, T. Aziz, et al (575)
Oct 25 2022 hep-ex arXiv:2210.13143v1

@misc{2210.13143, author = {Belle II collaboration and F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and S.~Bacher and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and A.~Bozek and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and G.~Ghevondyan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and P.~Horak and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and M.~Kaleta and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~Manthei and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov}, title = {{D}etermination of $|{V}_{cb}|$ from ${B}\to {D}\ell\nu$ decays using 2019-2021 {B}elle {II} data}, year = {2022}, eprint = {2210.13143}, note = {arXiv:2210.13143v1} }
PDF
We present a determination of the magnitude of the Cabibbo-Kobayashi-Maskawa (CKM) matrix element $V_{cb}$ using $B\to D\ell\nu$ decays. The result is based on $e^+e^-\to\Upsilon(4S)$ data recorded by the Belle II detector corresponding to 189.2/fb of integrated luminosity. The semileptonic decays $B^0\to D^-(\to K^+\pi^-\pi^-)\ell^+\nu_\ell$ and $B^+\to\bar D^0(\to K^+\pi^-)\ell^+\nu_\ell$ are reconstructed, where $\ell$ is either electron or a muon. The second $B$ meson in the $\Upsilon(4S)$ event is not explicitly reconstructed. Using the diamond-frame method, we determine the $B$ meson four-momentum and thus the hadronic recoil. We extract the partial decay rates as functions of $w$ and perform a fit to the decay form-factor and the CKM parameter $|V_{cb}|$ using the BGL parameterization of the form factor and lattice QCD input from the FNAL/MILC and HPQCD collaborations. We obtain $\eta_{EW}|V_{cb}|=(38.53\pm 1.15)\times 10^{-3}$, where $\eta_{EW}$ is an electroweak correction, and the error accounts for theoretical and experimental sources of uncertainty.
Measurement of the photon-energy spectrum in inclusive $B\rightarrow X_{s}\gamma$ decays identified using hadronic decays of the recoil $B$ meson in 2019-2021 Belle II data
Belle II Collaboration, F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, T. Aziz, et al (578)
Oct 20 2022 hep-ex arXiv:2210.10220v1

@misc{2210.10220, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and S.~Bacher and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and A.~Bozek and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and G.~Ghevondyan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and M.~Kaleta and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~Manthei and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and T.~Martinov and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and M.~Röhrken and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and K.~Tackmann and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{M}easurement of the photon-energy spectrum in inclusive ${B}\rightarrow {X}_{s}\gamma$ decays identified using hadronic decays of the recoil ${B}$ meson in 2019-2021 {B}elle {II} data}, year = {2022}, eprint = {2210.10220}, note = {arXiv:2210.10220v1} }
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We measure the photon-energy spectrum in radiative bottom-meson ($B$) decays into inclusive final states involving a strange hadron and a photon. We use SuperKEKB electron-positron collisions corresponding to $189~\mathrm{fb}^{-1}$ of integrated luminosity collected at the $\Upsilon(4S)$ resonance by the Belle II experiment. The partner $B$ candidates are fully reconstructed using a large number of hadronic channels. The $B \rightarrow X_s \gamma$ partial branching fractions are measured as a function of photon energy in the signal $B$ meson rest frame in eight bins above $1.8~\mathrm{GeV}$. The background-subtracted signal yield for this photon energy region is $343 \pm 122$ events. Integrated branching fractions for three photon energy thresholds of $1.8~\mathrm{GeV}$, $2.0~\mathrm{GeV}$, and $2.1~\mathrm{GeV}$ are also reported, and found to be in agreement with world averages.
ATHENA Detector Proposal -- A Totally Hermetic Electron Nucleus Apparatus proposed for IP6 at the Electron-Ion Collider
ATHENA Collaboration, J. Adam, L. Adamczyk, N. Agrawal, C. Aidala, W. Akers, M. Alekseev, M.M. Allen, F. Ameli, A. Angerami, P. Antonioli, N.J. Apadula, A. Aprahamian, W. Armstrong, M. Arratia, J.R. Arrington, A. Asaturyan, E.C. Aschenauer, K. Augsten, S. Aune, et al (420)
Oct 18 2022 physics.ins-det hep-ex nucl-ex arXiv:2210.09048v1

@misc{2210.09048, author = {ATHENA Collaboration and J.~Adam and L.~Adamczyk and N.~Agrawal and C.~Aidala and W.~Akers and M.~Alekseev and M.M.~Allen and F.~Ameli and A.~Angerami and P.~Antonioli and N.J.~Apadula and A.~Aprahamian and W.~Armstrong and M.~Arratia and J.R.~Arrington and A.~Asaturyan and E.C.~Aschenauer and K.~Augsten and S.~Aune and K.~Bailey and C.~Baldanza and M.~Bansal and F.~Barbosa and L.~Barion and K.~Barish and M.~Battaglieri and A.~Bazilevsky and N.K.~Behera and V.~Berdnikov and J.~Bernauer and C.~Berriaud and A.~Bhasin and D.S.~Bhattacharya and J.~Bielcik and J.~Bielcikova and C.~Bissolotti and W.~Boeglin and M.~Bondì and M.~Borri and F.~Bossu and F.~Bouyjou and J.D.~Brandenburg and A.~Bressan and M.~Brooks and S.L.~Bueltmann and D.~Byer and H.~Caines and M.~Calderon de la Barca Sanchez and V.~Calvelli and A.~Camsonne and L.~Cappelli and M.~Capua and M.~Castro and D.~Cavazza and D.~Cebra and A.~Celentano and I.~Chakaberia and B.~Chan and W.~Chang and M.~Chartier and C.~Chatterjee and D.~Chen and J.~Chen and K.~Chen and Z.~Chen and H.~Chetri and T.~Chiarusi and M.~Chiosso and X.~Chu and J.J.~Chwastowski and G.~Cicala and E.~Cisbani and E.~Cline and I.~Cloet and D.~Colella and M.~Contalbrigo and G.~Contin and R.~Corliss and Y.~Corrales-Morales and J.~Crafts and C.~Crawford and R.~Cruz-Torres and D.~D'Ago and A.~D'Angelo and N.~D'Hose and J.~Dainton and S.~Dalla Torre and S.S.~Dasgupta and S.~Dash and N.~Dashyan and J.~Datta and M.~Daugherity and R.~De Vita and W.~Deconinck and M.~Defurne and K.~Dehmelt and A.~Del Dotto and F.~Delcarro and G.~Dellacasa and Z.S.~Demiroglu and G.W.~Deptuch and V.~Desai and A.~Deshpande and K.~Devereaux and R.~Dhillon and R.~Di Salvo and C.~Dilks and D.~Dixit and S.~Dobbs and X.~Dong and J.~Drachenberg and A.~Drees and R.~Dupre and M.~Durham and R.~Dzhygadlo and L.~El Fassi and D.~Elia and E.~Epple and R.~Esha and O.~Evdokimov and O.~Eyser and D.~Falchieri and W.~Fan and A.~Fantini and R.~Fatemi and S.~Fazio and S.~Fegan and A.~Filippi and H.~Fox and A.~Francisco and A.~Freeze and S.~Furletov and Y.~Furletova and C.~Gal and S.~Gardner and P.~Garg and D.~Gaskell and K.~Gates and M.T.W.~Gericke and F.~Geurts and C.~Ghosh and M.~Giacalone and F.~Giacomini and S.~Gilchrist and D.~Glazier and K.~Gnanvo and L.~Gonella and L.C.~Greiner and N.~Guerrini and L.~Guo and A.~Gupta and R.~Gupta and W.~Guryn and X.~He and T.~Hemmick and S.~Heppelmann and D.~Higinbotham and M.~Hoballah and A.~Hoghmrtsyan and M.~Hohlmann and T.~Horn and D.~Hornidge and H.Z.~Huang and C.E.~Hyde and P.~Iapozzuto and M.~Idzik and B.V.~Jacak and M.~Jadhav and S.~Jain and C.~Jena and A.~Jentsch and Y.~Ji and Z.~Ji and J.~Jia and P.G.~Jones and R.W.I.~Jones and S.~Joosten and S.~Joshi and L.~Kabir and G.~Kalicy and G.~Karyan and V.K.S.~Kashyap and D.~Kawall and H.~Ke and M.~Kelsey and J.~Kim and J.~Kiryluk and A.~Kiselev and S.R.~Klein and H.~Klest and V.~Kochar and W.~Korsch and L.~Kosarzewski and A.~Kotzinian and F.~Krizek and A.~Kumar and K.S.~Kumar and L.~Kumar and R.~Kumar and S.~Kumar and A.~Kunnath and N.~Kushawaha and R.~Lacey and Y.S.~Lai and K.~Lalwani and J.~Landgraf and L.~Lanza and D.~Lattuada and M.~Lavinsky and J.H.~Lee and S.H.~Lee and R.~Lemmon and A.~Lestone and N.~Lewis and H.~Li and S.~Li and W.~Li and W.~Li and X.~Li and X.~Li and X.~Liang and T.~Ligonzo and T.~Lin and J.~Liu and K.~Liu and M.~Liu and K.~Livingston and N.~Liyanage and T.~Ljubicic and O.~Long and N.~Lukow and Y.~Ma and J.~Mammei and F.~Mammoliti and K.~Mamo and I.~Mandjavidze and S.~Maple and D.~Marchand and A.~Margotti and C.~Markert and P.~Markowitz and T.~Marshall and A.~Martin and H.~Marukyan and A.~Mastroserio and S.~Mathew and S.~Mayilyan and C.~Mayri and M.~McEneaney and Y.~Mei and L.~Meng and F.~Meot and J.~Metcalfe and Z.-E.~Meziani and P.~Mihir and R.~Milton and A.~Mirabella and M.~Mirazita and A.~Mkrtchyan and H.~Mkrtchyan and B.~Mohanty and M.~Mondal and A.~Morreale and A.~Movsisyan and D.~Muenstermann and A.~Mukherjee and C.~Munoz Camacho and M.J.~Murray and H.~Mustafa and M.~Myska and B.P.~Nachman and K.~Nagai and R.~Naik and J.P.~Naim and J.~Nam and B.~Nandi and E.~Nappi and Md.~Nasim and D.~Neff and D.~Neiret and P.R.~Newman and M.~Nguyen and S.~Niccolai and M.~Nie and F.~Noferini and J.~Norman and F.~Noto and A.S.~Nunes and T.~O'Connor and G.~Odyniec and V.A.~Okorokov and M.~Osipenko and B.~Page and C.~Palatchi and D.~Palmer and P.~Palni and S.~Pandey and D.~Panzieri and S.~Park and K.~Paschke and C.~Pastore and R.N.~Patra and A.~Paul and S.~Paul and C.~Pecar and A.~Peck and I.~Pegg and C.~Pellegrino and C.~Peng and L.~Pentchev and R.~Perrino and K.~Piotrzkowski and T.~Polakovic and M.~Ploskon and M.~Posik and S.~Prasad and R.~Preghenella and S.~Priens and E.~Prifti and M.~Przybycien and P.~Pujahari and A.~Quintero and M.~Radici and S.K.~Radhakrishnan and S.~Rahman and S.~Rathi and B.~Raue and R.~Reed and P.~Reimer and J.~Reinhold and E.~Renner and L.~Rignanese and M.~Ripani and A.~Rizzo and D.~Romanov and A.~Roy and N.~Rubini and M.~Ruspa and L.~Ruan and F.~Sabatie and S.~Sadhukhan and N.~Sahoo and P.~Sahu and D.~Samuel and A.~Sarkar and M.~Sarsour and W.~Schmidke and B.~Schmookler and C.~Schwarz and J.~Schwiening and M.~Scott and I.~Sedgwick and M.~Segreti and S.~Sekula and R.~Seto and N.~Shah and A.~Shahinyan and D.~Sharma and N.~Sharma and E.P.~Sichtermann and A.~Signori and A.~Singh and B.K.~Singh and S.N.~Singh and N.~Smirnov and D.~Sokhan and R.~Soltz and W.~Sondheim and S.~Spinali and F.~Stacchi and R.~Staszewski and P.~Stepanov and S.~Strazzi and I.R.~Stroe and X.~Sun and B.~Surrow and Z.~Sweger and T.J.~Symons and V.~Tadevosyan and A.~Tang and E.~Tassi and L.~Teodorescu and F.~Tessarotto and D.~Thomas and J.H.~Thomas and T.~Toll and L.~Tomasek and F.~Torales-Acosta and P.~Tribedy and Triloki and V.~Tripathi and R.~Trotta and M.~Trzebiński and B.A.~Trzeciak and O.~Tsai and Z.~Tu and R.~Turrisi and C.~Tuve and T.~Ullrich and G.M.~Urciuoli and A.~Valentini and S.~Vallarino and M.~Vandenbroucke and J.~Vanek and G.~Vino and G.~Volpe and H.~Voskanyan and A.~Vossen and E.~Voutier and G.~Wang and Y.~Wang and D.~Watts and N.~Wickramaarachchi and F.~Wilson and C.-P.~Wong and X.~Wu and Y.~Wu and J.~Xie and Q.-H.~Xu and Z.~Xu and Z.W.~Xu and C.~Yang and Q.~Yang and Y.~Yang and Z.~Ye and Z.~Ye and L.~Yi and Z.~Yin and M.~Yurov and N.~Zachariou and J.~Zhang and Y.~Zhang and Z.~Zhang and Z.~Zhang and Y.~Zhao and Y.X.~Zhao and Z.~Zhao and L.~Zheng and M.~Zurek}, title = {{ATHENA} {D}etector {P}roposal -- {A} {T}otally {H}ermetic {E}lectron {N}ucleus {A}pparatus proposed for {IP}6 at the {E}lectron-{I}on {C}ollider}, year = {2022}, eprint = {2210.09048}, howpublished = {JINST 17 (2022) 10, P10019}, note = {arXiv:2210.09048v1} }
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ATHENA has been designed as a general purpose detector capable of delivering the full scientific scope of the Electron-Ion Collider. Careful technology choices provide fine tracking and momentum resolution, high performance electromagnetic and hadronic calorimetry, hadron identification over a wide kinematic range, and near-complete hermeticity. This article describes the detector design and its expected performance in the most relevant physics channels. It includes an evaluation of detector technology choices, the technical challenges to realizing the detector and the R&D required to meet those challenges.
Determination of $|V_{ub}|$ from untagged $B^0\to\pi^- \ell^+ \nu_{\ell}$ decays using 2019-2021 Belle II data
Belle II Collaboration, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, T. Aziz, V. Babu, S. Bacher, et al (573)
Oct 11 2022 hep-ex arXiv:2210.04224v2

@misc{2210.04224, author = {Belle II Collaboration and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and S.~Bacher and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and A.~Bozek and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and G.~Ghevondyan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and M.~Kaleta and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~Manthei and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{D}etermination of $|{V}_{ub}|$ from untagged ${B}^0\to\pi^- \ell^+ \nu_{\ell}$ decays using 2019-2021 {B}elle {II} data}, year = {2022}, eprint = {2210.04224}, note = {arXiv:2210.04224v2} }
PDF
We present an analysis of the charmless semileptonic decay $B^0\to\pi^- \ell^+ \nu_{\ell}$, where $\ell = e, \mu$, from 198.0 million pairs of $B\bar{B}$ mesons recorded by the Belle II detector at the SuperKEKB electron-positron collider. The decay is reconstructed without identifying the partner $B$ meson. The partial branching fractions are measured independently for $B^0\to\pi^- e^+ \nu_{e}$ and $B^0\to\pi^- \mu^+ \nu_{\mu}$ as functions of $q^{2}$ (momentum transfer squared), using 3896 $B^0\to\pi^- e^+ \nu_{e}$ and 5466 $B^0\to\pi^- \mu^+ \nu_{\mu}$ decays. The total branching fraction is found to be $(1.426 \pm 0.056 \pm 0.125) \times 10^{-4}$ for $B^0\to\pi^- \ell^+ \nu_{\ell}$ decays, where the uncertainties are statistical and systematic, respectively. By fitting the measured partial branching fractions as functions of $q^{2}$, together with constraints on the nonperturbative hadronic contribution from lattice QCD calculations, the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element $V_{ub}$, $(3.55 \pm 0.12 \pm 0.13 \pm 0.17) \times 10^{-3}$, is extracted. Here, the first uncertainty is statistical, the second is systematic and the third is theoretical.
Measurement of decay-time dependent $CP$ violation in $B^0 \rightarrow K^0_S K^0_S K^0_S$ using 2019--2021 Belle II data
Belle II Collaboration, F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, T. Aziz, et al (575)
Sep 21 2022 hep-ex arXiv:2209.09547v2

@misc{2209.09547, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and S.~Bacher and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and A.~Bozek and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and G.~Ghevondyan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and M.~Kaleta and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~Manthei and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{M}easurement of decay-time dependent ${CP}$ violation in ${B}^0 \rightarrow {K}^0_{S} {K}^0_{S} {K}^0_{S}$ using 2019--2021 {B}elle {II} data}, year = {2022}, eprint = {2209.09547}, note = {arXiv:2209.09547v2} }
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We report a measurement of decay-time dependent $CP$-violating parameters in $B^0 \rightarrow K^0_S K^0_S K^0_S$ decays. We use $(198.0 \pm 3.0) \times 10^6\ B\overline{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle II detector at the SuperKEKB asymmetric-energy $e^+e^-$ collider. The observed mixing-induced and direct $CP$ violation parameters are $\mathcal{S} = -1.86\ _{-0.46}^{+0.91}~{\rm (stat)} \pm 0.09~{\rm (syst)}$ and $\mathcal{A} = -0.22\ _{-0.27}^{+0.30}~{\rm (stat)} \pm 0.04~{\rm (syst)}$, respectively.
Measurement of the branching fractions and $CP$ asymmetries of $B^+ \rightarrow \pi^+ \pi^0$ and $B^+ \rightarrow K^+ \pi^0$ decays in 2019-2021 Belle II data
Belle II Collaboration, F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, T. Aziz, et al (567)
Sep 13 2022 hep-ex arXiv:2209.05154v2

@misc{2209.05154, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and G.~Ghevondyan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~Manthei and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and A.~Narimani Charan and M.~Naruki and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{M}easurement of the branching fractions and ${CP}$ asymmetries of ${B}^+ \rightarrow \pi^+ \pi^0$ and ${B}^+ \rightarrow {K}^+ \pi^0$ decays in 2019-2021 {B}elle {II} data}, year = {2022}, eprint = {2209.05154}, note = {arXiv:2209.05154v2} }
PDF
We determine the branching fractions ${\mathcal{B}}$ and $CP$ asymmetries ${\mathcal{A}_{{\it CP}}}$ of the decays $B^+ \rightarrow \pi^+ \pi^0$ and $B^+ \rightarrow K^+ \pi^0$. The results are based on a data set containing 198 million bottom-antibottom meson pairs corresponding to an integrated luminosity of $190\;\text{fb}^{-1}$ recorded by the Belle II detector in energy-asymmetric electron-positron collisions at the $\Upsilon (4S)$ resonance. We measure ${\mathcal{B}(B^+ \rightarrow \pi^+ \pi^0) = (6.12 \pm 0.53 \pm 0.53)\times 10^{-6}}$, ${\mathcal{B}(B^+ \rightarrow K^+ \pi^0) = (14.30 \pm 0.69 \pm 0.79)\times 10^{-6}}$, ${\mathcal{A}_{{\it CP}}(B^+ \rightarrow \pi^+ \pi^0) = -0.085 \pm 0.085 \pm 0.019}$, and ${\mathcal{A}_{{\it CP}}(B^+ \rightarrow K^+ \pi^0) = 0.014 \pm 0.047 \pm 0.010}$, where the first uncertainties are statistical and the second are systematic. These results improve a previous Belle II measurement and agree with the world averages.
Search for $C\!P$ violation and measurement of branching fractions and decay asymmetry parameters for $\Lambda_c^+\to\Lambda h^+$ and $\Lambda_c^+\to\Sigma^{0} h^+$ ($h\!=\!K,\,\pi$)
Belle Collaboration, L. K. Li, W. Shan, K. Kinoshita, I. Adachi, H. Aihara, D. M. Asner, H. Atmacan, T. Aushev, V. Babu, S. Bahinipati, Sw. Banerjee, P. Behera, J. Bennett, M. Bessner, V. Bhardwaj, B. Bhuyan, T. Bilka, A. Bobrov, D. Bodrov, et al (170)
Aug 19 2022 hep-ex arXiv:2208.08695v2

@misc{2208.08695, author = {Belle Collaboration and L.~K.~Li and W.~Shan and K.~Kinoshita and I.~Adachi and H.~Aihara and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Babu and S.~Bahinipati and Sw.~Banerjee and P.~Behera and J.~Bennett and M.~Bessner and V.~Bhardwaj and B.~Bhuyan and T.~Bilka and A.~Bobrov and D.~Bodrov and J.~Borah and M.~Bračko and P.~Branchini and A.~Budano and M.~Campajola and D.~Červenkov and M.-C.~Chang and P.~Chang and V.~Chekelian and A.~Chen and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and D.~Cinabro and N.~Dash and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and Z.~Doležal and T.~V.~Dong and D.~Epifanov and T.~Ferber and A.~Frey and B.~G.~Fulsom and V.~Gaur and A.~Garmash and A.~Giri and P.~Goldenzweig and G.~Gong and E.~Graziani and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and K.~Hayasaka and H.~Hayashii and M.~T.~Hedges and W.-S.~Hou and C.-L.~Hsu and K.~Inami and A.~Ishikawa and R.~Itoh and W.~W.~Jacobs and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and P.~Kodyš and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Krokovny and T.~Kuhr and R.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and T.~Lam and J.~S.~Lange and S.~C.~Lee and J.~Li and S.~X.~Li and Y.~Li and Y.~B.~Li and L.~Li Gioi and J.~Libby and K.~Lieret and M.~Masuda and S.~K.~Maurya and M.~Merola and F.~Metzner and K.~Miyabayashi and R.~Mizuk and R.~Mussa and M.~Nakao and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and M.~Niiyama and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and P.~Oskin and G.~Pakhlova and S.~Pardi and H.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and Y.~Sakai and S.~Sandilya and A.~Sangal and V.~Savinov and G.~Schnell and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and Y.~Seino and K.~Senyo and M.~E.~Sevior and M.~Shapkin and C.~Sharma and C.~P.~Shen and J.-G.~Shiu and J.~B.~Singh and A.~Sokolov and E.~Solovieva and M.~Starič and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and W.~Sutcliffe and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and M.~Uchida and T.~Uglov and Y.~Unno and S.~Uno and Y.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~Varner and A.~Vinokurova and A.~Vossen and E.~Waheed and E.~Wang and X.~L.~Wang and M.~Watanabe and S.~Watanuki and O.~Werbycka and E.~Won and X.~Xu and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and J.~Yelton and J.~H.~Yin and Y.~Yook and C.~Z.~Yuan and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{S}earch for ${C}\!{P}$ violation and measurement of branching fractions and decay asymmetry parameters for $\{L}ambda_c^+\to\{L}ambda h^+$ and $\{L}ambda_c^+\to\{S}igma^{0} h^+$ ($h\!=\!{K},\,\pi$)}, year = {2022}, eprint = {2208.08695}, note = {arXiv:2208.08695v2} }
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We report a study of $\Lambda_c^+\to\Lambda h^+$ and $\Lambda_c^+\to\Sigma^{0} h^+$ ($h\!=\!K,\,\pi$) decays based on a data sample of 980~${\rm fb}^{-1}$ collected with the Belle detector at the KEKB energy-asymmetric $e^+e^-$ collider. The first results of direct $C\!P$ asymmetry in two-body singly Cabibbo-suppressed (SCS) decays of charmed baryons are measured, $A_{C\!P}^{\rm{dir}}(\Lambda_c^+\to\Lambda K^+)\!=\!+0.021\pm0.026\pm0.001$ and $A_{C\!P}^{\rm{dir}}(\Lambda_c^+\to\Sigma^0K^+)\!=\!+0.025\pm0.054\pm0.004$. We also make the most precise measurement of the decay asymmetry parameters ($\alpha$) for the four modes of interest and search for $C\!P$ violation via the $\alpha$-induced $C\!P$ asymmetry ($A_{C\!P}^{\alpha}$). We measure $A_{C\!P}^{\alpha}(\Lambda_c^+\to\Lambda K^+)\!=\!{-0.023\pm0.086\pm0.071}$ and $A_{C\!P}^{\alpha}(\Lambda_c^+\to\Sigma^0K^+)\!=\!{+0.08\pm 0.35\pm 0.14}$, which are the first $A_{C\!P}^{\alpha}$ results for SCS decays of charmed baryons. We search for $\Lambda$-hyperon $C\!P$ violation in $\Lambda_c^+\to(\Lambda,\,\Sigma^0)\pi^+$ and find $A_{C\!P}^{\alpha}(\Lambda\to p\pi^{-})\!=\!{+0.013\pm0.007\pm0.011}$. This is the first time that hyperon $C\!P$ violation has been measured via Cabibbo-favored charm decays. No evidence of baryon $C\!P$ violation is found. We also obtain the most precise branching fractions for two SCS $\Lambda_c^+$ decays, $\mathcal{B}(\Lambda_c^+\to\Lambda K^+)\!=\!(6.57\pm0.17\pm0.11\pm0.35)\times10^{-4}$ and $\mathcal{B}(\Lambda_c^+\to\Sigma^0K^+)\!=\!(3.58\pm0.19\pm0.06\pm0.19)\times10^{-4}$. The first uncertainties are statistical and the second systematic, while the third uncertainties come from the uncertainties on the world average branching fractions of $\Lambda_c^+\to(\Lambda,\,\Sigma^0)\pi^+$.
Measurement of Branching Fraction and Longitudinal Polarization in $B^0 \to \rho^+ \rho^-$ Decays at Belle II
Belle II Collaboration, F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, T. Aziz, et al (569)
Aug 09 2022 hep-ex arXiv:2208.03554v1

@misc{2208.03554, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and G.~Ghevondyan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~Manthei and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and Y.~Nakazawa and A.~Narimani Charan and M.~Naruki and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and R.~Okubo and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{M}easurement of {B}ranching {F}raction and {L}ongitudinal {P}olarization in ${B}^0 \to \rho^+ \rho^-$ {D}ecays at {B}elle {II}}, year = {2022}, eprint = {2208.03554}, note = {arXiv:2208.03554v1} }
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We present a measurement of the branching fraction and longitudinal polarization of $B^0 \to \rho^+ \rho^-$ decays. SuperKEKB electron-positron collision data corresponding to 189~fb$^{-1}$ of integrated luminosity and containing $198 \times 10^6 B\bar{B}$ pairs collected with the Belle II detector are used. We obtain \begineqnarray* \mathcalB(B^0\to\rho^+\rho^-) &=& [2.67\pm0.28\,(\mathrmstat)\,\pm0.28\,(\mathrmsyst)] \times 10^-5, \endeqnarray* \begineqnarray* f_L &=& 0.956\pm0.035\,(\mathrmstat)\,\pm 0.033\,(\mathrmsyst), \endeqnarray* These results are consistent with previous measurements and can be used to constrain penguin pollution and to extract the quark-mixing angle $\phi_2$.
First measurement of the $B^{+}\to\pi^{+}\pi^{0}\pi^{0}$ branching fraction and \textitCP asymmetry
Belle Collaboration, Y.-T. Lai, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, S. Bahinipati, P. Behera, K. Belous, J. Bennett, M. Bessner, B. Bhuyan, T. Bilka, A. Bobrov, J. Borah, et al (181)
Aug 04 2022 hep-ex arXiv:2208.01855v2

@misc{2208.01855, author = {Belle Collaboration and Y.-T.~Lai and I.~Adachi and H.~Aihara and S.~Al Said and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and R.~Ayad and V.~Babu and S.~Bahinipati and P.~Behera and K.~Belous and J.~Bennett and M.~Bessner and B.~Bhuyan and T.~Bilka and A.~Bobrov and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and D.~Červenkov and M.-C.~Chang and P.~Chang and V.~Chekelian and A.~Chen and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and Y.~Choi and D.~Cinabro and S.~Cunliffe and T.~Czank and S.~Das and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and T.~Ferber and B.~G.~Fulsom and R.~Garg and V.~Gaur and N.~Gabyshev and A.~Giri and P.~Goldenzweig and E.~Graziani and T.~Gu and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and S.~Halder and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and T.~Higuchi and W.-S.~Hou and C.-L.~Hsu and T.~Iijima and K.~Inami and A.~Ishikawa and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and W.~W.~Jacobs and E.-J.~Jang and S.~Jia and Y.~Jin and A.~B.~Kaliyar and K.~H.~Kang and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Križan and R.~Kroeger and P.~Krokovny and M.~Kumar and R.~Kumar and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and T.~Lam and J.~S.~Lange and M.~Laurenza and S.~C.~Lee and D.~Levit and J.~Li and L.~K.~Li and Y.~B.~Li and L.~Li Gioi and J.~Libby and K.~Lieret and D.~Liventsev and A.~Martini and M.~Masuda and D.~Matvienko and F.~Meier and M.~Merola and F.~Metzner and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and T.~J.~Moon and M.~Mrvar and R.~Mussa and M.~Nakao and A.~Natochii and L.~Nayak and N.~K.~Nisar and S.~Nishida and S.~Ogawa and G.~Pakhlova and T.~Pang and S.~Pardi and H.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and Y.~Sakai and S.~Sandilya and A.~Sangal and L.~Santelj and T.~Sanuki and V.~Savinov and G.~Schnell and J.~Schueler and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and M.~Shapkin and C.~Sharma and C.~P.~Shen and J.-G.~Shiu and J.~B.~Singh and A.~Sokolov and E.~Solovieva and M.~Starič and Z.~S.~Stottler and J.~F.~Strube and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and M.~Takizawa and U.~Tamponi and K.~Tanida and F.~Tenchini and K.~Trabelsi and T.~Uglov and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and R.~Van Tonder and G.~Varner and K.~E.~Varvell and A.~Vinokurova and A.~Vossen and E.~Waheed and C.~H.~Wang and X.~L.~Wang and M.~Watanabe and S.~Watanuki and E.~Won and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and Y.~Zhai and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{F}irst measurement of the ${B}^{+}\to\pi^{+}\pi^{0}\pi^{0}$ branching fraction and \textit{CP} asymmetry}, year = {2022}, eprint = {2208.01855}, howpublished = {Phys. Rev. Lett. 130, 181804 (2023)}, doi = {10.1103/PhysRevLett.130.181804}, note = {arXiv:2208.01855v2} }
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We study $B^{+}\to \pi^{+}\pi^{0}\pi^{0}$ using 711 $\rm{fb}^{-1}$ of data collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider. We measure an inclusive branching fraction of $(19.0\pm 1.5\pm 1.4)\times 10^{-6}$ and an inclusive \textitCP asymmetry of $(9.2 \pm 6.8 \pm 0.7)\%$, where the first uncertainties are statistical and the second are systematic; and a $B^{+}\to \rho(770)^{+}\pi^{0}$ branching fraction of $(11.2\pm 1.1\pm 0.9 ^{+0.8}_{-1.6})\times 10^{-6}$, where the third uncertainty is due to possible interference with $B^{+}\to \rho(1450)^{+}\pi^{0}$. We present the first observation of a structure around 1 GeV/$c^{2}$ in the $\pi^{0}\pi^{0}$ mass spectrum, with a significance of 6.4$\sigma$, and measure a branching fraction to be $(6.9\pm 0.9\pm 0.6)\times 10^{-6}$. We also report a measurement of local \textitCP asymmetry in this structure.
Measurements of the branching fraction, isospin asymmetry, and lepton-universality ratio in $B \to J/\psi K$ decays at Belle II
Belle II Collaboration, F. Abudinén, I. Adachi, R. Adak, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, et al (575)
Jul 26 2022 hep-ex arXiv:2207.11275v1

@misc{2207.11275, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and R.~Adak and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and S.~Bacher and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and A.~Bozek and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and D.~Getzkow and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and Y.~Hu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and I.~Jaegle and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and M.~Kaleta and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and B.~H.~Kim and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and E.~Kou and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and B.~Oberhof and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobiie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and D.~J.~Summers and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and I.~Yeo and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{M}easurements of the branching fraction, isospin asymmetry, and lepton-universality ratio in ${B} \to {J}/\psi {K}$ decays at {B}elle {II}}, year = {2022}, eprint = {2207.11275}, note = {arXiv:2207.11275v1} }
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We report a study of $B \to J/\psi(\ell^{+}\ell^{-})K$ decays, where $\ell$ represents an electron or a muon, using $e^{+}e^{-}$ collisions at the $\Upsilon(4S)$ resonance. The data were collected by the Belle II experiment at the SuperKEKB asymmetric-energy collider during 2019-2021, corresponding to an integrated luminosity of $189$ fb$^{-1}$. The measured quantities are the branching fractions (${\mathcal B}$) of the decay channels $B^{+} \to J/\psi(e^{+}e^{-})K^{+}$, $B^{+} \to J/\psi(\mu^{+}\mu^{-}) K^{+}$, $B^{0} \to J/\psi(e^{+}e^{-}) K^{0}_{S}$, and $B^{0} \to J/\psi(\mu^{+}\mu^{-})K^{0}_{S}$; the lepton-flavor-dependent isospin asymmetries for the electron [$A_{I}\left(B \to J/\psi(e^{+}e^{-}) K\right)$] and muon [$A_{I}\left(B \to J/\psi(\mu^{+} \mu^{-}) K\right)$] channels; and the ratios of branching fractions between the muon and electron channels for the charged [$R_{K^{+}}\left(J/\psi\right)$] and neutral kaon [$R_{K^{0}}\left(J/\psi\right)$] case. The measurements are consistent with the world-average values.
Search for a dark leptophilic scalar produced in association with $\tau^+\tau^-$ pair in $e^+e^-$ annihilation at center-of-mass energies near 10.58 GeV
Belle Collaboration, D. Biswas, Sw. Banerjee, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, R. Ayad, V. Babu, P. Behera, J. Bennett, M. Bessner, V. Bhardwaj, B. Bhuyan, T. Bilka, D. Bodrov, J. Borah, A. Bozek, M. Bračko, P. Branchini, et al (160)
Jul 18 2022 hep-ex arXiv:2207.07476v3

@misc{2207.07476, author = {Belle Collaboration and D.~Biswas and Sw.~Banerjee and I.~Adachi and H.~Aihara and D.~M.~Asner and T.~Aushev and R.~Ayad and V.~Babu and P.~Behera and J.~Bennett and M.~Bessner and V.~Bhardwaj and B.~Bhuyan and T.~Bilka and D.~Bodrov and J.~Borah and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and D.~Červenkov and M.-C.~Chang and P.~Chang and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and D.~Cinabro and S.~Das and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and S.~Dubey and P.~Ecker and D.~Epifanov and T.~Ferber and B.~G.~Fulsom and V.~Gaur and A.~Garmash and A.~Giri and P.~Goldenzweig and E.~Graziani and Y.~Guan and K.~Gudkova and C.~Hadjivasiliou and K.~Hayasaka and H.~Hayashii and S.~Hazra and M.~T.~Hedges and D.~Herrmann and M.~Hernández Villanueva and W.-S.~Hou and C.-L.~Hsu and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and Q.~P.~Ji and S.~Jia and Y.~Jin and K.~K.~Joo and A.~B.~Kaliyar and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.~J.~Kim and Y.-K.~Kim and P.~Kodyš and T.~Konno and A.~Korobov and S.~Korpar and P.~Križan and P.~Krokovny and M.~Kumar and K.~Kumara and Y.-J.~Kwon and Y.-T.~Lai and M.~Laurenza and S.~C.~Lee and D.~Levit and J.~Li and L.~K.~Li and Y.~Li and L.~Li Gioi and J.~Libby and K.~Lieret and Y.-R.~Lin and D.~Liventsev and T.~Luo and Y.~Ma and M.~Masuda and S.~K.~Maurya and F.~Meier and M.~Merola and F.~Metzner and K.~Miyabayashi and R.~Mizuk and I.~Nakamura and M.~Nakao and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Niiyama and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and P.~Pakhlov and G.~Pakhlova and S.~Pardi and H.~Park and J.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and N.~Rout and G.~Russo and S.~Sandilya and L.~Santelj and V.~Savinov and G.~Schnell and C.~Schwanda and Y.~Seino and K.~Senyo and M.~E.~Sevior and W.~Shan and C.~Sharma and J.-G.~Shiu and B.~Shwartz and J.~B.~Singh and A.~Sokolov and E.~Solovieva and M.~Starič and Z.~S.~Stottler and M.~Sumihama and M.~Takizawa and K.~Tanida and F.~Tenchini and K.~Trabelsi and M.~Uchida and T.~Uglov and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and A.~Vinokurova and D.~Wang and E.~Wang and S.~Watanuki and E.~Won and X.~Xu and B.~D.~Yabsley and W.~Yan and J.~H.~Yin and C.~Z.~Yuan and L.~Yuan and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova and V.~Zhulanov}, title = {{S}earch for a dark leptophilic scalar produced in association with $\tau^+\tau^-$ pair in $e^+e^-$ annihilation at center-of-mass energies near 10.58 {G}e{V}}, year = {2022}, eprint = {2207.07476}, howpublished = {Phys. Rev. D 109, 032002 (Published 5 February 2024)}, doi = {10.1103/PhysRevD.109.032002}, note = {arXiv:2207.07476v3} }
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A dark leptophilic scalar $(\phi_L)$ is a hypothetical particle that couples only to leptons rather than quarks. We report on a search for $\phi_L$ in the $e^+e^- \to \tau^+ \tau^- \phi_L, ~\phi_L \to \ell^+ \ell^- ~(\ell = e, \mu)$ process using 626~\invfb of data collected by the Belle experiment near the \Y4S resonance. We validate the backgrounds with multiple control regions in data, using a novel multiclass multivariate event classifier. In absence of a signal, we quote upper limits at the 90\% confidence level on the coupling between $\phi_L$ and leptons. Our bounds, obtained in a blinded approach, are 19\% more constraining than the previous limits, averaged over the mass range $0.04 \leq m_{\phi_L} \leq 6.5~\gev$. We exclude the parameter space below 4~\gev favored by measurement of the anomalous magnetic moment of the muon.
Search for a dark photon and an invisible dark Higgs boson in $\mu^+\mu^-$ and missing energy final states with the Belle II experiment
Belle II Collaboration, F. Abudinén, I. Adachi, L. Aggarwal, H. Aihara, N. Akopov, A. Aloisio, N. Anh Ky, D. M. Asner, H. Atmacan, T. Aushev, V. Aushev, V. Babu, S. Bahinipati, P. Bambade, Sw. Banerjee, S. Bansal, J. Baudot, A. Baur, A. Beaubien, et al (340)
Jul 04 2022 hep-ex arXiv:2207.00509v4

@misc{2207.00509, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and L.~Aggarwal and H.~Aihara and N.~Akopov and A.~Aloisio and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and T.~Aushev and V.~Aushev and V.~Babu and S.~Bahinipati and P.~Bambade and Sw.~Banerjee and S.~Bansal and J.~Baudot and A.~Baur and A.~Beaubien and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and M.~Bertemes and E.~Bertholet and M.~Bessner and B.~Bhuyan and F.~Bianchi and T.~Bilka and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and S.~Bussino and M.~Campajola and G.~Casarosa and C.~Cecchi and V.~Chekelian and C.~Chen and Y.~Q.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and S.~Cunliffe and F.~Dattola and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and G.~Dujany and P.~Ecker and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and B.~G.~Fulsom and E.~Ganiev and M.~Garcia-Hernandez and V.~Gaur and A.~Gaz and A.~Gellrich and R.~Giordano and A.~Giri and B.~Gobbo and R.~Godang and P.~Goldenzweig and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and T.~Gu and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and K.~Hara and T.~Hara and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and M.~Hoek and M.~Hohmann and C.-L.~Hsu and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and Q.~P.~Ji and S.~Jia and Y.~Jin and H.~Junkerkalefeld and H.~Kakuno and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and R.~Karl and G.~Karyan and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and K.-H.~Kim and Y.-K.~Kim and K.~Kinoshita and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and P.~Križan and P.~Krokovny and T.~Kuhr and R.~Kumar and K.~Kumara and T.~Kunigo and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and T.~Lam and J.~S.~Lange and M.~Laurenza and R.~Leboucher and S.~C.~Lee and L.~K.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and Q.~Y.~Liu and D.~Liventsev and S.~Longo and A.~Lozar and T.~Lueck and C.~Lyu and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and K.~Matsuoka and J.~A.~McKenna and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and M.~Mrvar and I.~Nakamura and K.~R.~Nakamura and M.~Nakao and H.~Nakayama and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and N.~K.~Nisar and S.~Nishida and K.~Nishimura and S.~Ogawa and H.~Ono and P.~Oskin and G.~Pakhlova and A.~Paladino and A.~Panta and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and A.~Passeri and S.~Patra and S.~Paul and T.~K.~Pedlar and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and G.~Rizzo and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and A.~Rostomyan and N.~Rout and D.~Sahoo and D.~A.~Sanders and S.~Sandilya and L.~Santelj and Y.~Sato and B.~Scavino and J.~Schueler and C.~Schwanda and Y.~Seino and A.~Selce and K.~Senyo and J.~Serrano and M.~E.~Sevior and C.~Sfienti and T.~Shillington and J.-G.~Shiu and A.~Sibidanov and F.~Simon and J.~B.~Singh and J.~Skorupa and A.~Soffer and A.~Sokolov and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and M.~Sumihama and K.~Sumisawa and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and M.~Uchida and I.~Ueda and Y.~Uematsu and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and E.~Waheed and H.~M.~Wakeling and E.~Wang and M.-Z.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and M.~Welsch and C.~Wessel and H.~Windel and E.~Won and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~H.~Yin and K.~Yoshihara and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhang and V.~Zhilich and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and R.~Žlebčík}, title = {{S}earch for a dark photon and an invisible dark {H}iggs boson in $\mu^+\mu^-$ and missing energy final states with the {B}elle {II} experiment}, year = {2022}, eprint = {2207.00509}, howpublished = {Phys. Rev. Lett. 130, 071804 (2023)}, doi = {10.1103/PhysRevLett.130.071804}, note = {arXiv:2207.00509v4} }
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The dark photon $A^\prime$ and the dark Higgs boson $h^\prime$ are hypothetical particles predicted in many dark sector models. We search for the simultaneous production of $A^\prime$ and $h^\prime$ in the dark Higgsstrahlung process $e^{+}e^{-}\rightarrow A^\prime \, h^\prime$ with $A^\prime \rightarrow \mu^+\mu^-$ and $ h^\prime$ invisible in electron-positron collisions at a center-of-mass energy of 10.58 GeV collected by the Belle II experiment in 2019. With an integrated luminosity of 8.34 fb$^{-1}$, we observe no evidence for signal. We obtain exclusion limits at 90% Bayesian credibility in the range of 1.7--5.0 fb on the cross section and in the range of $1.7 \times10^{-8}$--$200 \times10^{-8}$ on the effective coupling $\varepsilon^2 \times \alpha_D$ for the $A^\prime$ mass in the range of 4.0 GeV/$c^2$ $< M_{A^\prime}< 9.7$ GeV/$c^2$ and for the $h^\prime$ mass $M_{h^\prime} < M_{A^\prime}$, where $\varepsilon$ is the mixing strength between the standard model and the dark photon and $\alpha_D$ is the coupling of the dark photon to the dark Higgs boson. Our limits are the first in this mass range.
Angular analysis of $B^+ \to \rho^+\rho^0$ decays reconstructed in 2019, 2020, and 2021 Belle II data
Belle II Collaboration, F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, T. Aziz, et al (575)
Jun 27 2022 hep-ex hep-ph arXiv:2206.12362v1

@misc{2206.12362, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and S.~Bacher and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and A.~Bozek and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and G.~Ghevondyan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and M.~Kaleta and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~Manthei and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{A}ngular analysis of ${B}^+ \to \rho^+\rho^0$ decays reconstructed in 2019, 2020, and 2021 {B}elle {II} data}, year = {2022}, eprint = {2206.12362}, note = {arXiv:2206.12362v1} }
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We report on a Belle II measurement of the branching fraction ($\mathcal{B}$), longitudinal polarization fraction ($f_L$), and CP asymmetry ($\mathcal{A}_{CP}$) of $B^+\to \rho^+\rho^0$ decays. We reconstruct $B^+\to \rho^+(\to \pi^+\pi^0(\to \gamma\gamma))\rho^0(\to \pi^+\pi^-)$ decays in a sample of SuperKEKB electron-positron collisions collected by the Belle II experiment in 2019, 2020, and 2021 at the $\Upsilon$(4S) resonance and corresponding to 190 fb$^{-1}$ of integrated luminosity. We fit the distributions of the difference between expected and observed $B$ candidate energy, continuum-suppression discriminant, dipion masses, and decay angles of the selected samples, to determine a signal yield of $345 \pm 31$ events. The signal yields are corrected for efficiencies determined from simulation and control data samples to obtain $\mathcal{B}(B^+ \to \rho^+\rho^0) = [23.2^{+\ 2.2}_{-\ 2.1} (\rm stat) \pm 2.7 (\rm syst)]\times 10^{-6}$, $f_L = 0.943 ^{+\ 0.035}_{-\ 0.033} (\rm stat)\pm 0.027(\rm syst)$, and $\mathcal{A}_{CP}=-0.069 \pm 0.068(\rm stat) \pm 0.060 (\rm syst)$. The results agree with previous measurements. This is the first measurement of $\mathcal{A}_{CP}$ in $B^+\to \rho^+\rho^0$ decays reported by Belle II.
Angular analysis of the low $K^{+}K^{-}$ invariant mass enhancement in $B^{+}\to K^{+}K^{-}\pi^{+}$ decays
Belle Collaboration, C.-L. Hsu, M. E. Sevior, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, S. Bahinipati, M. Bauer, P. Behera, K. Belous, J. Bennett, M. Bessner, V. Bhardwaj, B. Bhuyan, et al (185)
Jun 24 2022 hep-ex arXiv:2206.11445v2

@misc{2206.11445, author = {Belle Collaboration and C.-L.~Hsu and M.~E.~Sevior and I.~Adachi and H.~Aihara and S.~Al Said and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and R.~Ayad and V.~Babu and S.~Bahinipati and M.~Bauer and P.~Behera and K.~Belous and J.~Bennett and M.~Bessner and V.~Bhardwaj and B.~Bhuyan and T.~Bilka and J.~Biswal and T.~Bloomfield and A.~Bobrov and A.~Bozek and M.~Bračko and P.~Branchini and T.~E.~Browder and A.~Budano and M.~Campajola and D.~Červenkov and M.-C.~Chang and V.~Chekelian and A.~Chen and B.~G.~Cheon and K.~Chilikin and H.~E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and Y.~Choi and S.~Choudhury and D.~Cinabro and S.~Cunliffe and S.~Das and N.~Dash and G.~De Nardo and G.~De Pietro and R.~Dhamija and F.~Di Capua and J.~Dingfelder and Z.~Doležal and T.~V.~Dong and D.~Dossett and S.~Dubey and D.~Epifanov and T.~Ferber and D.~Ferlewicz and B.~G.~Fulsom and R.~Garg and V.~Gaur and N.~Gabyshev and A.~Garmash and A.~Giri and P.~Goldenzweig and E.~Graziani and T.~Gu and K.~Gudkova and C.~Hadjivasiliou and S.~Halder and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and W.-S.~Hou and K.~Inami and A.~Ishikawa and R.~Itoh and M.~Iwasaki and W.~W.~Jacobs and E.-J.~Jang and S.~Jia and Y.~Jin and K.~K.~Joo and A.~B.~Kaliyar and K.~H.~Kang and C.~Kiesling and C.~H.~Kim and D.~Y.~Kim and Y.-K.~Kim and T.~D.~Kimmel and P.~Kodyš and T.~Konno and A.~Korobov and S.~Korpar and E.~Kovalenko and P.~Križan and P.~Krokovny and T.~Kuhr and R.~Kulasiri and K.~Kumara and A.~Kuzmin and Y.-J.~Kwon and Y.-T.~Lai and J.~S.~Lange and M.~Laurenza and S.~C.~Lee and J.~Li and L.~K.~Li and Y.~B.~Li and L.~Li Gioi and J.~Libby and K.~Lieret and D.~Liventsev and C.~MacQueen and M.~Masuda and T.~Matsuda and D.~Matvienko and F.~Meier and M.~Merola and F.~Metzner and K.~Miyabayashi and R.~Mizuk and G.~B.~Mohanty and M.~Nakao and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and M.~Niiyama and N.~K.~Nisar and S.~Nishida and S.~Ogawa and H.~Ono and Y.~Onuki and P.~Oskin and P.~Pakhlov and G.~Pakhlova and S.~Pardi and H.~Park and S.-H.~Park and A.~Passeri and S.~Paul and T.~K.~Pedlar and R.~Pestotnik and L.~E.~Piilonen and T.~Podobnik and E.~Prencipe and M.~T.~Prim and A.~Rostomyan and N.~Rout and G.~Russo and D.~Sahoo and S.~Sandilya and A.~Sangal and L.~Santelj and T.~Sanuki and V.~Savinov and G.~Schnell and J.~Schueler and C.~Schwanda and Y.~Seino and K.~Senyo and M.~Shapkin and C.~Sharma and C.~P.~Shen and J.-G.~Shiu and B.~Shwartz and A.~Sokolov and E.~Solovieva and M.~Starič and Z.~S.~Stottler and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and M.~Takizawa and U.~Tamponi and K.~Tanida and Y.~Tao and F.~Tenchini and M.~Uchida and T.~Uglov and Y.~Unno and S.~Uno and R.~van Tonder and G.~Varner and K.~E.~Varvell and A.~Vinokurova and E.~Waheed and C.~H.~Wang and E.~Wang and X.~L.~Wang and M.~Watanabe and S.~Watanuki and E.~Won and X.~Xu and B.~D.~Yabsley and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and Z.~P.~Zhang and V.~Zhilich and V.~Zhukova}, title = {{A}ngular analysis of the low ${K}^{+}{K}^{-}$ invariant mass enhancement in ${B}^{+}\to {K}^{+}{K}^{-}\pi^{+}$ decays}, year = {2022}, eprint = {2206.11445}, doi = {10.1103/PhysRevD.107.032013}, note = {arXiv:2206.11445v2} }
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We study the decay $B^{+} \to K^+ K^- \pi^+$ and investigate the angular distribution of $K^{+}K^{-}$ pairs with invariant mass below $1.1$ GeV/$c^2$. This region exhibits both a strong enhancement in signal and very large direct $CP$ violation. We construct a coherent sum model for the angular distribution of $S$- and $P$-wave, and report the ratio of their amplitudes, the relative phase and the forward-backward asymmetry. We also report absolute differential branching fractions and direct $CP$ asymmetry for the decay in bins of $M_{K^+K^-}$ and the differential branching fractions in bins of $M_{K^+\pi^-}$. The results are based on a data sample that contains $772\times10^6$ $B \bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. The measured overall branching fraction and the direct $CP$ asymmetry are $(5.38\pm0.40\pm0.35)\times 10^{-6}$ and $-0.170\pm0.073\pm0.017$, respectively, where the first uncertainties are statistical and the second are systematic.
Study of Exclusive $B \to \pi e^+ \nu_e$ Decays with Hadronic Full-event-interpretation Tagging in 189.3 fb$^{-1}$ of Belle II Data
Belle II Collaboration, F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, T. Aziz, et al (575)
Jun 17 2022 hep-ex arXiv:2206.08102v2

@misc{2206.08102, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and S.~Bacher and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and A.~Bozek and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and G.~Ghevondyan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and M.~Kaleta and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~Manthei and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{S}tudy of {E}xclusive ${B} \to \pi e^+ \nu_e$ {D}ecays with {H}adronic {F}ull-event-interpretation {T}agging in 189.3 fb$^{-1}$ of {B}elle {II} {D}ata}, year = {2022}, eprint = {2206.08102}, note = {arXiv:2206.08102v2} }
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We present a reconstruction of the semileptonic decays $B^0 \to \pi^- e^+ \nu_e$ and $B^+ \to \pi^0 e^+ \nu_e$ in a sample corresponding to 189.3 fb$^{-1}$ of Belle II data, using events where the partner $B$-meson is reconstructed from a large variety of hadronic channels via a tagging algorithm known as the full-event-interpretation. We determine the partial branching fractions in three bins of the squared momentum transfer to the leptonic system using fits to the distribution of the square of the missing mass. The partial branching fractions are summed to determine $\mathcal{B}(B^0 \to \pi^- e^+ \nu_e)$ = (1.43 $\pm$ 0.27(stat) $\pm$ 0.07(syst)) $\times 10^{-4}$ and $\mathcal{B}(B^+ \to \pi^0 e^+ \nu_e)$ = (8.33 $\pm$ 1.67(stat) $\pm$ 0.55(syst)) $\times 10^{-5}$. We extract a first Belle II measurement of the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element $|V_{\mathrm{ub}}|$, with $|V_{\mathrm{ub}}|$ = (3.88 $\pm$ 0.45) $\times 10^{-3}$.
Measurement of the branching fraction of the $B^0 \to K_S^0 \pi^0 \gamma$ decay using 190 fb$^{-1}$ of Belle II data
Belle II Collaboration, F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, T. Aziz, et al (575)
Jun 17 2022 hep-ex arXiv:2206.08280v1

@misc{2206.08280, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and S.~Bacher and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and V.~Bertacchi and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and A.~Bozek and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and S.~A.~De La Motte and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and G.~Ghevondyan and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and S.~Granderath and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and M.~Kaleta and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and S.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and K.~Kojima and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and A.~Manthei and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and A.~Narimani Charan and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and Y.~Sue and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{M}easurement of the branching fraction of the ${B}^0 \to {K}_{S}^0 \pi^0 \gamma$ decay using 190 fb$^{-1}$ of {B}elle {II} data}, year = {2022}, eprint = {2206.08280}, note = {arXiv:2206.08280v1} }
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We report the measurement of the branching fraction of the $B^0 \to K_S^0 \pi^0 \gamma$ decay in $e^+ e^- \to \Upsilon(4S) \to B \overline{B}$ data recorded by the Belle II experiment at the SuperKEKB asymmetric-energy collider and corresponding to 190 fb$^{-1}$ of integrated luminosity. The signal yield is measured to be $121\pm 29\,\hbox{(stat.)}$, leading to the branching fraction ${\cal B}\left(B^0 \to K_S^0 \pi^0 \gamma\right) = \left(7.3 \pm 1.8\,\hbox{(stat.)} \pm 1.0\,\hbox{(syst.)} \right)\times 10^{-6}$, which agrees with the known value.
First decay-time-dependent analysis of $B^{0} \to K_{S}^{0} \pi^{0}$ at Belle II
Belle II Collaboration, F. Abudinén, I. Adachi, R. Adak, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, et al (574)
Jun 16 2022 hep-ex arXiv:2206.07453v1

@misc{2206.07453, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and R.~Adak and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and S.~Bacher and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and A.~Bozek and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunliffe and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and D.~Getzkow and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and Y.~Hu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and I.~Jaegle and D.~E.~Jaffe and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and M.~Kaleta and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and B.~H.~Kim and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and B.~Oberhof and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri and A.~Pathak and S.~Patra and S.~Paul and T.~K.~Pedlar and I.~Peruzzi and R.~Peschke and R.~Pestotnik and F.~Pham and M.~Piccolo and L.~E.~Piilonen and G.~Pinna Angioni and P.~L.~M.~Podesta-Lerma and T.~Podobnik and S.~Pokharel and L.~Polat and V.~Popov and C.~Praz and S.~Prell and E.~Prencipe and M.~T.~Prim and M.~V.~Purohit and H.~Purwar and N.~Rad and P.~Rados and S.~Raiz and A.~Ramirez Morales and R.~Rasheed and N.~Rauls and M.~Reif and S.~Reiter and M.~Remnev and I.~Ripp-Baudot and M.~Ritter and M.~Ritzert and G.~Rizzo and L.~B.~Rizzuto and S.~H.~Robertson and D.~Rodríguez Pérez and J.~M.~Roney and C.~Rosenfeld and A.~Rostomyan and N.~Rout and M.~Rozanska and G.~Russo and D.~Sahoo and Y.~Sakai and D.~A.~Sanders and S.~Sandilya and A.~Sangal and L.~Santelj and P.~Sartori and Y.~Sato and V.~Savinov and B.~Scavino and C.~Schmitt and M.~Schnepf and M.~Schram and H.~Schreeck and J.~Schueler and C.~Schwanda and A.~J.~Schwartz and B.~Schwenker and M.~Schwickardi and Y.~Seino and A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~Sfienti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~Soffer and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and D.~J.~Summers and W.~Sutcliffe and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and I.~Yeo and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{F}irst decay-time-dependent analysis of ${B}^{0} \to {K}_{{S}}^{0} \pi^{0}$ at {B}elle {II}}, year = {2022}, eprint = {2206.07453}, note = {arXiv:2206.07453v1} }
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We report measurements of the branching fraction ($\mathcal{B}$) and direct $CP$-violating asymmetry ($A_{CP}$) of the charmless decay $B^{0} \to K^0 \pi^0$ at Belle II. A sample of $e^{+} e^{-}$ collisions, corresponding to $189.8 fb^{-1}$ of integrated luminosity, recorded at the $\Upsilon(4S)$ resonance is used for the first decay-time-dependent analysis of these decays within the experiment. We reconstruct about 135 signal candidates, and measure $\mathcal{B}(B^{0} \to K^{0} \pi^{0})= [11.0 \pm 1.2 (stat) \pm 1.0 (syst)] \times 10^{-6}$ and $A_{CP} (B^{0} \to K^{0} \pi^{0})= -0.41_{-0.32}^{+0.30} (stat) \pm 0.09 (syst)$.
Measurement of the branching fraction for the decay $B \to K^{\ast}(892)\ell^+\ell^-$ at Belle II
Belle II Collaboration, F. Abudinén, I. Adachi, R. Adak, K. Adamczyk, L. Aggarwal, P. Ahlburg, H. Ahmed, J. K. Ahn, H. Aihara, N. Akopov, A. Aloisio, F. Ameli, L. Andricek, N. Anh Ky, D. M. Asner, H. Atmacan, V. Aulchenko, T. Aushev, V. Aushev, et al (574)
Jun 14 2022 hep-ex arXiv:2206.05946v4

@misc{2206.05946, author = {Belle II Collaboration and F.~Abudinén and I.~Adachi and R.~Adak and K.~Adamczyk and L.~Aggarwal and P.~Ahlburg and H.~Ahmed and J.~K.~Ahn and H.~Aihara and N.~Akopov and A.~Aloisio and F.~Ameli and L.~Andricek and N.~Anh Ky and D.~M.~Asner and H.~Atmacan and V.~Aulchenko and T.~Aushev and V.~Aushev and T.~Aziz and V.~Babu and S.~Bacher and H.~Bae and S.~Baehr and S.~Bahinipati and A.~M.~Bakich and P.~Bambade and Sw.~Banerjee and S.~Bansal and M.~Barrett and G.~Batignani and J.~Baudot and M.~Bauer and A.~Baur and A.~Beaubien and A.~Beaulieu and J.~Becker and P.~K.~Behera and J.~V.~Bennett and E.~Bernieri and F.~U.~Bernlochner and M.~Bertemes and E.~Bertholet and M.~Bessner and S.~Bettarini and V.~Bhardwaj and B.~Bhuyan and F.~Bianchi and T.~Bilka and S.~Bilokin and D.~Biswas and A.~Bobrov and D.~Bodrov and A.~Bolz and A.~Bondar and G.~Bonvicini and A.~Bozek and M.~Bračko and P.~Branchini and N.~Braun and R.~A.~Briere and T.~E.~Browder and D.~N.~Brown and A.~Budano and L.~Burmistrov and S.~Bussino and M.~Campajola and L.~Cao and G.~Casarosa and C.~Cecchi and D.~Červenkov and M.-C.~Chang and P.~Chang and R.~Cheaib and P.~Cheema and V.~Chekelian and C.~Chen and Y.~Q.~Chen and Y.-T.~Chen and B.~G.~Cheon and K.~Chilikin and K.~Chirapatpimol and H.-E.~Cho and K.~Cho and S.-J.~Cho and S.-K.~Choi and S.~Choudhury and D.~Cinabro and L.~Corona and L.~M.~Cremaldi and S.~Cunli e and T.~Czank and S.~Das and N.~Dash and F.~Dattola and E.~De La Cruz-Burelo and G.~de Marino and G.~De Nardo and M.~De Nuccio and G.~De Pietro and R.~de Sangro and B.~Deschamps and M.~Destefanis and S.~Dey and A.~De Yta-Hernandez and R.~Dhamija and A.~Di Canto and F.~Di Capua and S.~Di Carlo and J.~Dingfelder and Z.~Doležal and I.~Domínguez Jiménez and T.~V.~Dong and M.~Dorigo and K.~Dort and D.~Dossett and S.~Dreyer and S.~Dubey and S.~Duell and G.~Dujany and P.~Ecker and S.~Eidelman and M.~Eliachevitch and D.~Epifanov and P.~Feichtinger and T.~Ferber and D.~Ferlewicz and T.~Fillinger and C.~Finck and G.~Finocchiaro and P.~Fischer and K.~Flood and A.~Fodor and F.~Forti and A.~Frey and M.~Friedl and B.~G.~Fulsom and M.~Gabriel and A.~Gabrielli and N.~Gabyshev and E.~Ganiev and M.~Garcia-Hernandez and R.~Garg and A.~Garmash and V.~Gaur and A.~Gaz and U.~Gebauer and A.~Gellrich and J.~Gemmler and T.~Geßler and D.~Getzkow and G.~Giakoustidis and R.~Giordano and A.~Giri and A.~Glazov and B.~Gobbo and R.~Godang and P.~Goldenzweig and B.~Golob and P.~Gomis and G.~Gong and P.~Grace and W.~Gradl and E.~Graziani and D.~Greenwald and T.~Gu and Y.~Guan and K.~Gudkova and J.~Guilliams and C.~Hadjivasiliou and S.~Halder and K.~Hara and T.~Hara and O.~Hartbrich and K.~Hayasaka and H.~Hayashii and S.~Hazra and C.~Hearty and M.~T.~Hedges and I.~Heredia de la Cruz and M.~Hernández Villanueva and A.~Hershenhorn and T.~Higuchi and E.~C.~Hill and H.~Hirata and M.~Hoek and M.~Hohmann and S.~Hollitt and T.~Hotta and C.-L.~Hsu and Y.~Hu and K.~Huang and T.~Humair and T.~Iijima and K.~Inami and G.~Inguglia and N.~Ipsita and J.~Irakkathil Jabbar and A.~Ishikawa and S.~Ito and R.~Itoh and M.~Iwasaki and Y.~Iwasaki and S.~Iwata and P.~Jackson and W.~W.~Jacobs and I.~Jaegle and D.~E.~Ja e and E.-J.~Jang and M.~Jeandron and H.~B.~Jeon and Q.~P.~Ji and S.~Jia and Y.~Jin and C.~Joo and K.~K.~Joo and H.~Junkerkalefeld and I.~Kadenko and J.~Kahn and H.~Kakuno and M.~Kaleta and A.~B.~Kaliyar and J.~Kandra and K.~H.~Kang and P.~Kapusta and R.~Karl and G.~Karyan and Y.~Kato and H.~Kawai and T.~Kawasaki and C.~Ketter and H.~Kichimi and C.~Kiesling and B.~H.~Kim and C.-H.~Kim and D.~Y.~Kim and H.~J.~Kim and K.-H.~Kim and K.~Kim and S.-H.~Kim and Y.-K.~Kim and Y.~Kim and T.~D.~Kimmel and H.~Kindo and K.~Kinoshita and C.~Kleinwort and B.~Knysh and P.~Kodyš and T.~Koga and S.~Kohani and I.~Komarov and T.~Konno and A.~Korobov and S.~Korpar and N.~Kovalchuk and E.~Kovalenko and R.~Kowalewski and T.~M.~G.~Kraetzschmar and F.~Krinner and P.~Križan and R.~Kroeger and J.~F.~Krohn and P.~Krokovny and H.~Krüger and W.~Kuehn and T.~Kuhr and J.~Kumar and M.~Kumar and R.~Kumar and K.~Kumara and T.~Kumita and T.~Kunigo and M.~Künzel and S.~Kurz and A.~Kuzmin and P.~Kvasnička and Y.-J.~Kwon and S.~Lacaprara and Y.-T.~Lai and C.~La Licata and K.~Lalwani and T.~Lam and L.~Lanceri and J.~S.~Lange and M.~Laurenza and K.~Lautenbach and P.~J.~Laycock and R.~Leboucher and F.~R.~Le Diberder and I.-S.~Lee and S.~C.~Lee and P.~Leitl and D.~Levit and P.~M.~Lewis and C.~Li and L.~K.~Li and S.~X.~Li and Y.~B.~Li and J.~Libby and K.~Lieret and J.~Lin and Z.~Liptak and Q.~Y.~Liu and Z.~A.~Liu and D.~Liventsev and S.~Longo and A.~Loos and A.~Lozar and P.~Lu and T.~Lueck and F.~Luetticke and T.~Luo and C.~Lyu and C.~MacQueen and M.~Maggiora and R.~Maiti and S.~Maity and R.~Manfredi and E.~Manoni and S.~Marcello and C.~Marinas and L.~Martel and A.~Martini and L.~Massaccesi and M.~Masuda and T.~Matsuda and K.~Matsuoka and D.~Matvienko and J.~A.~McKenna and J.~McNeil and F.~Meggendorfer and F.~Meier and M.~Merola and F.~Metzner and M.~Milesi and C.~Miller and K.~Miyabayashi and H.~Miyake and H.~Miyata and R.~Mizuk and K.~Azmi and G.~B.~Mohanty and N.~Molina-Gonzalez and S.~Moneta and H.~Moon and T.~Moon and J.~A.~Mora Grimaldo and T.~Morii and H.-G.~Moser and M.~Mrvar and F.~J.~Müller and Th.~Muller and G.~Muroyama and C.~Murphy and R.~Mussa and I.~Nakamura and K.~R.~Nakamura and E.~Nakano and M.~Nakao and H.~Nakayama and H.~Nakazawa and M.~Naruki and Z.~Natkaniec and A.~Natochii and L.~Nayak and M.~Nayak and G.~Nazaryan and D.~Neverov and C.~Niebuhr and M.~Niiyama and J.~Ninkovic and N.~K.~Nisar and S.~Nishida and K.~Nishimura and M.~H.~A.~Nouxman and B.~Oberhof and K.~Ogawa and S.~Ogawa and S.~L.~Olsen and Y.~Onishchuk and H.~Ono and Y.~Onuki and P.~Oskin and F.~Otani and E.~R.~Oxford and H.~Ozaki and P.~Pakhlov and G.~Pakhlova and A.~Paladino and T.~Pang and A.~Panta and E.~Paoloni and S.~Pardi and K.~Parham and H.~Park and S.-H.~Park and B.~Paschen and A.~Passeri 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A.~Selce and K.~Senyo and I.~S.~Seong and J.~Serrano and M.~E.~Sevior and C.~S enti and V.~Shebalin and C.~P.~Shen and H.~Shibuya and T.~Shillington and T.~Shimasaki and J.-G.~Shiu and B.~Shwartz and A.~Sibidanov and F.~Simon and J.~B.~Singh and S.~Skambraks and J.~Skorupa and K.~Smith and R.~J.~Sobie and A.~So er and A.~Sokolov and Y.~Soloviev and E.~Solovieva and S.~Spataro and B.~Spruck and M.~Starič and S.~Stefkova and Z.~S.~Stottler and R.~Stroili and J.~Strube and J.~Stypula and R.~Sugiura and M.~Sumihama and K.~Sumisawa and T.~Sumiyoshi and D.~J.~Summers and W.~Sutcli e and S.~Y.~Suzuki and H.~Svidras and M.~Tabata and M.~Takahashi and M.~Takizawa and U.~Tamponi and S.~Tanaka and K.~Tanida and H.~Tanigawa and N.~Taniguchi and Y.~Tao and P.~Taras and F.~Tenchini and R.~Tiwary and D.~Tonelli and E.~Torassa and N.~Toutounji and K.~Trabelsi and I.~Tsaklidis and T.~Tsuboyama and N.~Tsuzuki and M.~Uchida and I.~Ueda and S.~Uehara and Y.~Uematsu and T.~Ueno and T.~Uglov and K.~Unger and Y.~Unno and K.~Uno and S.~Uno and P.~Urquijo and Y.~Ushiroda and Y.~V.~Usov and S.~E.~Vahsen and R.~van Tonder and G.~S.~Varner and K.~E.~Varvell and A.~Vinokurova and L.~Vitale and V.~Vobbilisetti and V.~Vorobyev and A.~Vossen and B.~Wach and E.~Waheed and H.~M.~Wakeling and K.~Wan and W.~Wan Abdullah and B.~Wang and C.~H.~Wang and E.~Wang and M.-Z.~Wang and X.~L.~Wang and A.~Warburton and M.~Watanabe and S.~Watanuki and J.~Webb and S.~Wehle and M.~Welsch and C.~Wessel and J.~Wiechczynski and P.~Wieduwilt and H.~Windel and E.~Won and L.~J.~Wu and X.~P.~Xu and B.~D.~Yabsley and S.~Yamada and W.~Yan and S.~B.~Yang and H.~Ye and J.~Yelton and I.~Yeo and J.~H.~Yin and M.~Yonenaga and Y.~M.~Yook and K.~Yoshihara and T.~Yoshinobu and C.~Z.~Yuan and Y.~Yusa and L.~Zani and Y.~Zhai and J.~Z.~Zhang and Y.~Zhang and Y.~Zhang and Z.~Zhang and V.~Zhilich and J.~Zhou and Q.~D.~Zhou and X.~Y.~Zhou and V.~I.~Zhukova and V.~Zhulanov and R.~Žlebčík}, title = {{M}easurement of the branching fraction for the decay ${B} \to {K}^{\ast}(892)\ell^+\ell^-$ at {B}elle {II}}, year = {2022}, eprint = {2206.05946}, note = {arXiv:2206.05946v4} }
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We report a measurement of the branching fraction of $B \to K^{\ast}(892)\ell^+\ell^-$ decays, where $\ell^+\ell^- = \mu^+\mu^-$ or $e^+e^-$, using electron-positron collisions recorded at an energy at or near the $\Upsilon(4S)$ mass and corresponding to an integrated luminosity of $189$ fb$^{-1}$. The data was collected during 2019--2021 by the Belle II experiment at the SuperKEKB $e^{+}e^{-}$ asymmetric-energy collider. We reconstruct $K^{\ast}(892)$ candidates in the $K^+\pi^-$, $K_{S}^{0}\pi^+$, and $K^+\pi^0$ final states. The signal yields with statistical uncertainties are $22\pm 6$, $18 \pm 6$, and $38 \pm 9$ for the decays $B \to K^{\ast}(892)\mu^+\mu^-$, $B \to K^{\ast}(892)e^+e^-$, and $B \to K^{\ast}(892)\ell^+\ell^-$, respectively. We measure the branching fractions of these decays for the entire range of the dilepton mass, excluding the very low mass region to suppress the $B \to K^{\ast}(892)\gamma(\to e^+e^-)$ background and regions compatible with decays of charmonium resonances, to be \beginequation \cal B(B \to K^∗(892)\mu^+\mu^-) = (1.19 \pm 0.31 ^+0.08_-0.07) \times 10^-6, \cal B(B \to K^∗(892)e^+e^-) = (1.42 \pm 0.48 \pm 0.09)\times 10^-6, \cal B(B \to K^∗(892)\ell^+\ell^-) = (1.25 \pm 0.30 ^+0.08_-0.07) \times 10^-6, \endequation where the first and second uncertainties are statistical and systematic, respectively. These results, limited by sample size, are the first measurements of $B \to K^{\ast}(892)\ell^+\ell^-$ branching fractions from the Belle II experiment.