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

Dmitri Kharzeev*, Eugene Levin, Marzia Nardi, Kirill Tuchin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We consider a novel mechanism for J/ψ production in nuclear collisions arising due to the high density of gluons. The resulting J/ψ production cross section is evaluated as a function of rapidity and centrality. We compute the nuclear modification factor and show that the rapidity distribution of the produced J/ψ'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/ψ suppression and can explain the experimentally observed rapidity and centrality dependencies of the effect.

Original languageEnglish
Article number152301
JournalPhysical Review Letters
Volume102
Issue number15
DOIs
StatePublished - 14 Apr 2009

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