2011

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

Dominguez, F., Kharzeev, D. E., Levin, E. M. et al.

Understand

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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