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arXiv · 2401.16281

Semi-inclusive deep-inelastic scattering at NNLO in QCD

Leonardo Bonino·Thomas Gehrmann·Giovanni Stagnitto
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Abstract

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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Leonardo Bonino, Thomas Gehrmann, Giovanni Stagnitto. 2024-01-29. Semi-inclusive deep-inelastic scattering at NNLO in QCD. https://doi.org/10.1103/physrevlett.132.251901

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