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arXiv · 1109.1250

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

F. Dominguez·D. E. Kharzeev·E. M. Levin·A. H. Mueller·K. Tuchin
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Abstract

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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F. Dominguez, D. E. Kharzeev, E. M. Levin, A. H. Mueller, K. Tuchin. 2011-09-06. Gluon saturation effects on the color singlet J/Psi production in high energy dA and AA collisions. https://doi.org/10.1016/j.physletb.2012.02.068

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