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Probing non-leptonic two-body decays of \(B_{c}\) meson. (English) Zbl 1298.81384

Summary: Rates and CP asymmetries of the non-leptonic two-body decay of \(B_{c}\) are calculated based on the low energy effective Hamiltonian. We concentrate on such \(b\) quark decays of the processes with \(0^{-}\) and \(1^{-}\) S-wave particles and/or \(0^{+}\) and \(1^{+}\) P-wave particles in the final states. The Salpeter method, which is the relativistic instantaneous approximation of the original Bethe-Salpeter equation, is used to derive hadron transition matrix elements. Based on the calculation, it is found that the best decay channels to observe CP violation are \(B_{c}^{-} \to \eta_{c} + D^{-}(D_{0}^{\ast -})\), which need about \(\sim 10^{7}B_{c}\) events in experiment. Decays to \(\eta_{c} + D^{\ast -}(D_{s}^{-})\), \(h_{c} + D^{-}(D^{\ast -})(D_{0}^{\ast -})\), \(J/{\Psi} + D^{\ast -}\) are also hopeful channels.

MSC:

81V05 Strong interaction, including quantum chromodynamics
81V35 Nuclear physics
81T16 Nonperturbative methods of renormalization applied to problems in quantum field theory
81U99 Quantum scattering theory
81Q40 Bethe-Salpeter and other integral equations arising in quantum theory

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