Semi-inclusive deep-inelastic scattering at NNLO in QCD
arxiv(2024)
摘要
Semi-inclusive hadron production processes in deep-inelastic lepton-nucleon
scattering are important probes of the quark flavour structure of the nucleon
and of the fragmentation dynamics of quarks into hadrons. We compute the full
next-to-next-to-leading order (NNLO) QCD corrections to the coefficient
functions for semi-inclusive deep-inelastic scattering (SIDIS) in analytical
form. The numerical impact of these corrections for precision physics is
illustrated by a detailed comparison with data on single inclusive hadron
spectra from the CERN COMPASS experiment.
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