Polarized semi-inclusive deep-inelastic scattering at NNLO in QCD

Abstract

Semi-inclusive hadron production in longitudinally polarized deep-inelastic lepton-nucleon scattering is a powerful tool for resolving the quark flavor decomposition of the proton's spin structure. We present the full next-to-next-to-leading order (NNLO) QCD corrections to the coefficient functions of polarized semi-inclusive deep-inelastic scattering (SIDIS) in analytical form, enabling the use of SIDIS measurements in precision studies of the proton spin structure. The numerical impact of these corrections is illustrated by a comparison with data of polarized single-inclusive hadron spectra from the DESY HERMES and CERN COMPASS experiments.

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Cited by in corpus (9)

• Next-to-Next-to-Leading Order QCD Corrections to Polarized Semi-Inclusive Deep-Inelastic Scattering
• NNLO QCD corrections to unpolarized and polarized SIDIS
• Neutral and Charged Current Semi-Inclusive Deep-Inelastic Scattering at NNLO QCD
• Single-inclusive hadron production in electron-positron annihilation at next-to-next-to-next-to-leading order in QCD
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• The Unresolved Behaviour of Polarized Scattering Matrix Elements at NNLO in QCD