Gluon saturation effects on J/Psi production in heavy ion collisions

Abstract

We consider a novel mechanism for J/Psi production in nuclear collisions arising due to the high density of gluons. We calculate the resulting J/Psi production cross section as a function of rapidity and centrality. We evaluate the nuclear modification factor and show that the rapidity distribution of the produced J/Psi's is significantly more narrow in AA collisions due to the gluon saturation effects. Our results indicate that gluon saturation in the colliding nuclei is a significant source of J/Psi suppression that can be disentangled from the quark-gluon plasma effects.

5 pages, 3 figures; v2: typos corrected; presentation improved

References in corpus (5)

• J/psi Production vs Centrality, Transverse Momentum, and Rapidity in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• J/psi Production vs Transverse Momentum and Rapidity in p+p Collisions at sqrt(s) = 200 GeV
• Gluon saturation effects on J/Psi production in heavy ion collisions
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Cited by in corpus (2)

• Gluon saturation effects on J/Psi production in heavy ion collisions
• Exclusive measurement of two-pion production in the dd --> 4Hepipi reaction