Inelastic J/psi and Upsilon hadroproduction
High Energy Physics - Phenomenology
2011-03-23 v2
Abstract
We consider the prompt hadroproduction of J/psi, psi' and the Upsilon (1S,2S,3S) states caused by the fusion of a symmetric colour-octet two-gluon state and an additional gluon. The cross sections are calculated in leading-order perturbative QCD. We find a considerable enhancement in comparison with previous perturbative QCD predictions. Indeed, the resulting cross sections are found to be consistent with the values measured at the Tevatron and RHIC, without the need to invoke non-perturbative `colour-octet' type of contributions.
Cite
@article{arxiv.hep-ph/0410020,
title = {Inelastic J/psi and Upsilon hadroproduction},
author = {V. A. Khoze and A. D. Martin and M. G. Ryskin and W. J. Stirling},
journal= {arXiv preprint arXiv:hep-ph/0410020},
year = {2011}
}
Comments
21 pages, 10 figures; several clarifying sentences and an additional reference have been added