Polarized proton-deuteron Drell-Yan processes and parton distributions
Abstract
We show in general that there are 108 structure functions in the proton-deuteron Drell-Yan processes. However, there exist only 22 finite ones after integrating the cross section over the virtual-photon transverse momentum \vec Q_T or after taking the limit Q_T->0. There are 11 new structure functions in comparison with the ones of the proton-proton reactions, and they are related to the tensor structure of the deuteron. Parton-model analyses indicate an important tensor structure function V_T^{UQ_0}, which can be measured by a quadrupole spin asymmetry. The Drell-Yan process has an advantage over lepton reactions in finding tensor polarized antiquark distributions. We hope that our studies will be realized in the next-generation RHIC-Spin project and other ones.
Keywords
Cite
@article{arxiv.hep-ph/9902314,
title = {Polarized proton-deuteron Drell-Yan processes and parton distributions},
author = {S. Hino and S. Kumano},
journal= {arXiv preprint arXiv:hep-ph/9902314},
year = {2009}
}
Comments
1+4 pages, LaTeX, espcrc1.sty, amsmath.sty, epsfig.sty, wrapfig.sty, 4 eps figures. Talk at the KEK-Tanashi International Symposium on "Physics of Hadrons and Nuclei", Tokyo, Japan, Dec.14-17, 1998. To be published in Nucl. Phys. A. Complete postscript file is available at http://www2.cc.saga-u.ac.jp/saga-u/riko/physics/quantum1/structure.html Email: [email protected], [email protected]