Double-Longitudinal Spin Asymmetry in Single-Inclusive Lepton Scattering at NLO

Abstract

We calculate the double-spin asymmetries $A_{\mathrm{LL}}$ for the processes $\ell N\to hX$ and $\ell N\to \mathrm{jet}X$ at next-to-leading order accuracy in perturbative QCD. We compare our theoretical results for $A_{\mathrm{LL}}$ to data from the SLAC E155 experiment, finding only partially satisfactory agreement. We conclude that measurements of $A_{\mathrm{LL}}$ and the relevant polarized and unpolarized cross sections should be performed at the present-day fixed-target lepton scattering experiments, as well as at a future electron ion collider, in order to verify our understanding of this process. We present predictions of the longitudinal double-spin asymmetries for these experiments.

14 pages, 30 figures

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Cited by in corpus (12)

• Jet-based measurements of Sivers and Collins asymmetries at the future Electron-Ion Collider
• Jets as precision probes in electron-nucleus collisions at the Electron-Ion Collider
• Jet angularities in photoproduction at the Electron-Ion Collider
• Asymmetric jet clustering in deep-inelastic scattering
• Charm jets as a probe for strangeness at the future Electron-Ion Collider
• Inclusive jet production as a probe of polarized PDFs at a future EIC
• Exploring $J/\psi$ production mechanism at the future Electron-Ion Collider
• EIC Physics from An All-Silicon Tracking Detector
• Transverse Nucleon Single-Spin Asymmetry for Single-Inclusive Hadron and Jet Production at NLO Accuracy
• The transverse nucleon single-spin asymmetry for the semi-inclusive production of photons in lepton-nucleon scattering
• Probing the polarized photon content of the proton in $ep$ collisions at the EIC
• Direct- and Resolved-Photon Threshold Resummation for Polarized High-$p_T$ Hadron Production at COMPASS