Abstract
In this article we report on the results of quarkonia production in p+p, d+Au, and Au+Au collisions at midrapidity via the dielectron decay channel at GeV from STAR. Results from J/ψ production in p+p collisions for pT < 14 GeV/c are presented to provide a baseline for studying suppression in heavy ion collisions and are also used to understand the quarkonium production mechanism. The nuclear modification factor for J/ψ in d+Au collisions for pT < 5 GeV/c and Au+Au collisions for pT < 10 GeV/c is reported, along with J/ψ elliptic flow υ2 in Au+Au collisions. The results from υ(1S+2S+3S) production in p+p and Au+Au collisions are also provided, and the Upsilon nuclear modification factor in Au+Au collisions is presented.
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