J/psi suppression and the nuclear absorption decrease with increasing energy
High Energy Physics - Phenomenology
2008-11-26 v4
Abstract
In the field theoretical Glauber-Gribov framework in the eikonal approximation, we show that, in hadron-nucleus collisions in the high-energy limit and under especific conditions, the rescattering contributions to the J/psi production cross-section vanish, leading to an A^1 dependence on the atomic number A -- except for nuclear effects in the nucleus structure function, the so-called shadowing. We show that the RHIC data on production in d-Au collisions can be described with nuclear shadowing alone (sigma_{abs} = 0). The corresponding results for Au-Au collisions are also presented and compared with available data.
Cite
@article{arxiv.hep-ph/0610313,
title = {J/psi suppression and the nuclear absorption decrease with increasing energy},
author = {A. Capella and E. G. Ferreiro},
journal= {arXiv preprint arXiv:hep-ph/0610313},
year = {2008}
}
Comments
17 pages, 2 figures, published version