J/ψ production in Au+Au collisions at in the recombination model

We first determine c and shower parton distributions in jets induced by light and charm hard partons in the framework of the recombination model from relevant fragmentation functions. The shower parton distributions can be used to calculate other fragmentation functions and study charmed hadron production in other collisions. When the distributions are applied to reproduce the J/ψ production in Au+Au collisions at , energy loss effect is taken into account for J/ψ production due to its momentum loss in traversing the dense medium. We find that the contribution of thermal–shower parton recombination dominates over other mechanisms of hadronization in the region of 3.3