Speaker
Description
Precise theoretical predictions for observables with identified hadrons at hadron colliders are essential to understand how partons fragment into hadrons. The hadronization process is parametrized by process-independent fragmentation functions that encode the parton-to-hadron transition. To incorporate hadron fragmentation in higher-order QCD calculations requires a subtraction method to account for final-state collinear radiation associated with the fragmenting parton. To this aim we have extended the antenna subtraction method to hadron fragmentation processes with hadronic initial states at next-to-next-to-leading order (NNLO) in perturbative QCD. In this talk we describe the calculation of the full set of integrated antenna functions in initial-final fragmentation kinematics and their combination with mass-factorization counterterms. These results pave the way towards precise predictions for observables with identified hadrons at the LHC.
