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 (6)

• 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
• Production of q bar-q Pairs in Proton-Nucleus Collisions at High Energies
• Gluon saturation effects on J/Psi production in heavy ion collisions
• Forward hadron production in high energy pA collisions: from RHIC to LHC
• A d-Au data-driven prediction of cold nuclear matter effects on $J/\psi$ production in Au-Au collisions at RHIC

Cited by in corpus (8)

• Heavy quarkonium: progress, puzzles, and opportunities
• Gluon saturation effects on J/Psi production in heavy ion collisions
• Exclusive measurement of two-pion production in the dd --> 4Hepipi reaction
• $J/\psi$ production in hadron scattering: three-pomeron contribution
• Energy Dependence of Direct-Quarkonium Production in pp Collisions from Fixed-Target to LHC Energies: Complete One-Loop Analysis
• Measurement of $\psi$(2S) production as a function of charged-particle pseudorapidity density in pp collisions at $\sqrt{s}$ = 13 TeV and p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 8.16 TeV with ALICE at the LHC
• On heavy-quarkonia suppression by final-state multiple scatterings in most central Au+Au collisions at RHIC
• FKS subtraction for quarkonium production at NLO