Single spin asymmetries in heavy quark and antiquark productions

2008/06/11 by Feng Yuan, Jian Zhou · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.physletb.2008.08.045

published as Phys.Lett.B668:216-220,2008 · 12 pages, 4 figures

arxiv created 2008/06/11 · openalex publication_date 2008/08/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The single transverse spin asymmetries in heavy quark and antiquark production from the quark–antiquark annihilation channel contribution is studied by taking into account the initial and final state interactions effects. Because of the different color charges, the final state interaction effects lead to about a factor of 3 difference in the spin asymmetry for heavy quark over that for the antiquark in the valence region of low energy pp collisions. The experimental study of this model-independent prediction shall provide a crucial test for the underlying mechanism for the single spin asymmetry phenomena.

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• Master formula for the three-gluon contribution to single spin asymmetry in semi-inclusive deep inelastic scattering

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