J/Psi suppressions in Relativistic Heavy-ion collisions

We study $J/\psi$ survival probability, using short-distance QCD, in an equilibrating parton gas. The evolution of the system is determined within the Parton Cascade Model. Due to the formation of a large number of partons within this model, a large fraction of $J/\psi$ are found to be suppressed. In a thermal equilibrating plasma this suppression is found to be almost 95 percent, while it is around 90 percent in a chemically equilibrating plasma.