Heavy-quark state production in A-A collisions at s\sqrt{s}=200 GeV

preprint2014arXivOpen access

Abstract

We estimate differential rapidity cross sections for J/ΨJ/Ψ and Υ(1S)Υ(1S) production via Cu-Cu and Au-Au collisions at RHIC, and the relative probabilities of Ψ′(2S)Ψ'(2S) to J/ΨJ/Ψ production via p-p collisions using our recent theory of mixed heavy quark hybrids, in which the Ψ′(2S)Ψ'(2S) mesons have approximately equal normal qqˉq\bar{q} and hybrid qqˉgq\bar{q}g components. We also estimate the relative probabilities of Ψ′(2S)Ψ'(2S) to J/ΨJ/Ψ production via Cu-Cu and Au-Au collisions, which will be measured in future RHIC experiments. We also review production ratios of Υ(2S)Υ(2S) and Υ(3S)Υ(3S) to Υ(1S)Υ(1S) in comparison to recent experimental results.This is an extension of our recent work on p-p collisions for possible tests of the production of Quark-Gluon Plasma via A-A collisions at BNL-RHIC.

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