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Spin asymmetries at RHIC and polarized parton distributions

1998/06/05 by S. Hino, Hino, S., M. Hirai +5
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph #nucl-th

paper · pdf · doi:10.48550/arxiv.hep-ph/9806276

1+5 pages, LATEX with epsfig.sty, wrapfig.sty, and sprocl.sty, 3 eps figures. Talk given at the 6th International Workshop on Deep Inelastic Scattering and QCD. Brussels, Belgium, April 4-8, 1998, to be published in proceedings by the World Scientific. Complete postscript file including the figures is available at http://www.cc.saga-u.ac.jp/saga-u/riko/physics/quantum1/structure.html Email: [email protected], [email protected], [email protected], [email protected]

arxiv created 1998/06/05 · openalex publication_date 1998/06/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We discuss polarized parton distributions and their effects on spin asymmetries at RHIC. In particular, transversity distributions and transverse spin asymmetry are studied. First, we show the Q2 evolution difference between a transversity distribution and a corresponding longitudinally polarized distribution. The difference could be an important test of perturbative QCD in high-energy spin physics. Then, the transverse spin asymmetry ATT is calculated with possible transversity distributions. Next, we study antiquark flavor asymmetry ΔT u/ ΔT d in the transversity distributions by using a simple model. Its effects on the transverse spin asymmetry are also discussed.

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