Longitudinally Polarized Photoproduction of Inclusive Hadrons at Fixed-Target Experiments

Abstract

We present a detailed phenomenological study of spin-dependent single-inclusive high-p_T hadron photoproduction with particular emphasis on the kinematics relevant for the Compass and Hermes fixed-target experiments. We carefully examine the theoretical uncertainties associated with the only moderate transverse momenta accessible in such measurements and analyze the sensitivity of the relevant spin asymmetries to the gluon polarization in the nucleon as well as to the completely unknown parton content of circularly polarized photons.

arXiv comment12 pages, 14 figures; final version to appear in EPJC; comparison to E155 data and references added

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Cited by in corpus (19)

• Extraction of Spin-Dependent Parton Densities and Their Uncertainties
• Leading-Order Determination of the Gluon Polarization from high-$p_T$ Hadron Electroproduction
• The hadronization of partons
• Single-Inclusive Production of Hadrons and Jets in Lepton-Nucleon Scattering at NLO
• Machine learning-based jet and event classification at the Electron-Ion Collider with applications to hadron structure and spin physics
• Prospects of Open Charm Production at GSI-FAIR and J-PARC
• Soft-gluon Resummation for High-pT Inclusive-Hadron Production at COMPASS
• Double-Longitudinal Spin Asymmetry in Single-Inclusive Lepton Scattering at NLO
• Measurement of the Cross Section for High-p_T Hadron Production in Scattering of 160 GeV/c Muons off Nucleons
• Photoproduction of single inclusive jets at future ep colliders in next-to-leading order QCD
• Towards a Real-Time Computation of Timelike Hadronic Vacuum Polarization and Light-by-Light Scattering: Schwinger Model Tests
• Measurements of Delta G/G
• Longitudinally Polarized Photoproduction of Heavy Flavors at Next-to-Leading Order of QCD
• Threshold Resummation for Polarized High-$p_T$ Hadron Production at COMPASS
• Transverse Nucleon Single-Spin Asymmetry for Single-Inclusive Hadron and Jet Production at NLO Accuracy
• Next-to-leading order QCD corrections to spin-dependent hadron-pair photoproduction
• Direct- and Resolved-Photon Threshold Resummation for Polarized High-$p_T$ Hadron Production at COMPASS
• Hadron-Pair Photoproduction in Longitudinally Polarized Lepton-Nucleon Collisions
• Hard Quasi-real Photo-production of Charged Hadrons at COMPASS energies