$J/ψ$ production in PHENIX

Details $J/ψ$ production in PHENIX $J/ψ$ production in PHENIX

2006-08-24

arxiv.org/abs/nucl-ex/0608041v1

Eur.Phys.J.C49:365-369,2007

Physics

Nuclear Physics

Nuclear Experiment

5 pages, 7 figures. To appear in the proceedings of Hot Quarks 2006: Workshop for Young Scientists on the Physics of Ultrarela

Scientific paper

10.1140/epjc/s10052-006-0112-7

Heavy quarkonia production is expected to be sensitive to the formation of a quark gluon plasma (QGP). The PHENIX experiment has measured $J/\psi$ production at $\sqrt{s_{NN}}=$~200 GeV in Au+Au and Cu+Cu collisions, as well as in reference p+p and d+Au runs. $J/\psi$'s were measured both at mid ($|y|<0.35$) and forward ($1.2<|y|<2.2$) rapidity. In this letter, we present the A+A preliminary results and compare them to normal cold nuclear matter expectations derived from PHENIX d+Au and p+p measurements as well as to theoretical models including various effects (color screening, recombination, sequential melting...).

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