Quarkonium Production in High Energy Heavy Ion Collisions

Physics – Nuclear Physics

Scientific paper

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Scientific paper

We have estimated in a kinetic model the effects of a new production mechanism for quarkonium states in high energy heavy ion collisions. In this mechanism, bound states are formed from a quark and an antiquark which were originally produced in separate incoherent interactions. This requires the mobility of heavy quarks in an extended space-time region, and so will impact predictions of quarkonium production as a signal of deconfinement. Our calculations predict that at RHIC energies the deconfinement signal will change from suppression to enhancement of J/ψ production. The dependence on centrality and total heavy quark population will serve as indicators for the presence of this new mechanism.

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