Heavy-Quarkonia in the Star Experiment

Details Heavy-Quarkonia in the Star Experiment Heavy-Quarkonia in the Star Experiment

2007-06-27

arxiv.org/abs/0706.4016v1

Physics

Nuclear Physics

Nuclear Experiment

Proceedings of X Hadron Physics, submitted to Int. Journal of Mod. Phys. E

Scientific paper

10.1142/S021830130700880X

Heavy Quarkonium states modifications in relativistic heavy ion collisions have been of great interest since the proposal by Matsui and Satz of J/psi suppression as a signature of Quark-Gluon Plasma (QGP) formation. Recent studies suggest that the excited states chi_c, psi(2S) and Upsilon(3S) melt sequentially[1,2] and the amount of observed suppression depends on the state and medium conditions. Therefore, this suppression pattern may be used as a probe of the medium temperature. In this work we present preliminary results on the charmonium and bottomnium measurements performed by the STAR experiment at RHIC for p+p and Cu+Cu collisions at sqrt(s_{NN})=200GeV

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