Gluon saturation effects on the color singlet J/Psi production in high energy dA and AA collisions

Details Gluon saturation effects on the color singlet J/Psi production in high energy dA and AA collisions Gluon saturation effects on the color singlet J/Psi production in high energy dA and AA collisions

2011-09-06

arxiv.org/abs/1109.1250v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 6 figures

Scientific paper

We derive the formulae for the cross section of J/Psi production in high energy pA and AA collisions taking into account the gluon saturation/color glass condensate effects. We then perform the numerical calculations of the corresponding nuclear modification factors and find a good agreement between our calculations and the experimental data on J/Psi production in dA collisions. We also observe that cold nuclear modification effects alone cannot describe the data on J/Psi production in AA collisions. Additional final state suppression (at RHIC) and enhancement (at LHC) mechanisms are required to explain the experimental observations.

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