J/psi suppression and the nuclear absorption decrease with increasing energy

Details J/psi suppression and the nuclear absorption decrease with increasing energy J/psi suppression and the nuclear absorption decrease with increasing energy

2006-10-24

arxiv.org/abs/hep-ph/0610313v4

Phys.Rev.C76:064906,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, 2 figures, published version

Scientific paper

10.1103/PhysRevC.76.064906

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 $J/\psi$ 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.

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