English

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 J/ψJ/\psi 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.

Keywords

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