Nuclear absorption and $J/\psi$ suppression in Pb+Pb collisions
Nuclear Theory
2009-11-07 v1 High Energy Physics - Phenomenology
Abstract
We have analyzed the NA58 data on suppression in Pb+Pb collisions. production is assumed to be a two step process, (i) formation of pair, which is accurately calculable in QCD and (ii) formation of meson from the pair, which can be conveniently parameterized. In a pA/AA collision, a pair gain relative square momentum as it passes through the nuclear medium and some of the pairs can gain enough momentum to cross the threshold to become an open charm meson, leading to suppression in pA/AA collisions. A new prescription is proposed for the gain in momentum square, consistent with Krammer process. The model without any free parameter could explain the dependence of over Drell-Yan ratio.
Keywords
Cite
@article{arxiv.nucl-th/0203045,
title = {Nuclear absorption and $J/\psi$ suppression in Pb+Pb collisions},
author = {A. K. Chaudhuri},
journal= {arXiv preprint arXiv:nucl-th/0203045},
year = {2009}
}
Comments
4 pages including 2 figurs