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

Understand

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.