Spin asymmetries at RHIC and polarized parton distributions
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 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 is calculated with possible transversity distributions. Next, we study antiquark flavor asymmetry in the transversity distributions by using a simple model. Its effects on the transverse spin asymmetry are also discussed.
Keywords
Cite
@article{arxiv.hep-ph/9806276,
title = {Spin asymmetries at RHIC and polarized parton distributions},
author = {S. Hino and M. Hirai and S. Kumano and M. Miyama},
journal= {arXiv preprint arXiv:hep-ph/9806276},
year = {2007}
}
Comments
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]