Antenna subtraction for processes with identified particles at hadron colliders. (English) Zbl 07926621
Summary: Collider processes with identified hadrons in the final state are widely studied in view of determining details of the proton structure and of understanding hadronization. Their theory description requires the introduction of fragmentation functions, which parametrise the transition of a produced parton into the identified hadron. To compute higher-order perturbative corrections to these processes requires a subtraction method for infrared singular configurations. We extend the antenna subtraction method to hadron fragmentation processes in hadronic collisions up to next-to-next-to-leading order (NNLO) in QCD by computing the required fragmentation antenna functions in initial-final kinematics. The integrated antenna functions retain their dependence on the momentum fractions of the incoming and fragmenting partons.
MSC:
| 81Vxx | Applications of quantum theory to specific physical systems |
| 81Txx | Quantum field theory; related classical field theories |
| 81Uxx | Quantum scattering theory |
Keywords:
higher-order perturbative calculations; jets and jet substructure; specific QCD phenomenologyReferences:
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