Polarized semi-inclusive deep-inelastic scattering at NNLO in QCD
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866914068621688832 |
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| author | Bonino, Leonardo Gehrmann, Thomas Löchner, Markus Schönwald, Kay Stagnitto, Giovanni |
| author_facet | Bonino, Leonardo Gehrmann, Thomas Löchner, Markus Schönwald, Kay Stagnitto, Giovanni |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_08597 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Polarized semi-inclusive deep-inelastic scattering at NNLO in QCD Bonino, Leonardo Gehrmann, Thomas Löchner, Markus Schönwald, Kay Stagnitto, Giovanni High Energy Physics - Phenomenology High Energy Physics - Experiment 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. |
| title | Polarized semi-inclusive deep-inelastic scattering at NNLO in QCD |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2404.08597 |