Upsilonium Polarization as a Touchstone in Understanding the Parton Dynamics in QCD
High Energy Physics - Phenomenology
2008-09-23 v1
Abstract
In the framework of the -factorization approach, the production of Upsilon mesons at the Fermilab Tevatron is considered, and the comparisions of calculated -distributions and spin alignment parameter with the D0 experimental data are shown. We argue that measuring the double cross section and the polarization of upsilonium states can serve as a crucial test discriminating two competing theoretical approaches to parton dynamics in QCD.
Keywords
Cite
@article{arxiv.0809.3698,
title = {Upsilonium Polarization as a Touchstone in Understanding the Parton Dynamics in QCD},
author = {S. P. Baranov and N. P. Zotov},
journal= {arXiv preprint arXiv:0809.3698},
year = {2008}
}
Comments
6 pages, 2 figures, to be published in Proceedings of HSQCD Workshop, Gatchina, 2008