J/Psi production in heavy ion collisions and gluon saturation
arXiv:0809.2933 · doi:10.1016/j.nuclphysa.2009.06.016
Abstract
We calculate the inclusive J/Psi production in heavy ion collisions including the effects of gluon saturation in the wave functions of the colliding nuclei. We argue that the dominant production mechanism in proton--nucleus and nucleus--nucleus collisions for heavy nuclei is different from the one in hadron-hadron interactions. We find that the rapidity distribution of primary J/Psi production is more peaked around midrapidity than the analogous distribution in elementary pp collisions. We discuss the consequences of this fact on the experimentally observed J/Psi suppression in Au-Au collisions at RHIC energies.
25 pages, 13 figures; v2: many typos corrected, presentation improved
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