# $J/\psi$ production in PHENIX

Abstract : 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...).
Document type :
Conference papers

http://hal.in2p3.fr/in2p3-00127901
Contributor : Dominique Girod <>
Submitted on : Tuesday, January 30, 2007 - 10:37:29 AM
Last modification on : Thursday, March 5, 2020 - 6:21:40 PM

### Citation

R. Granier de Cassagnac. $J/\psi$ production in PHENIX. Hot Quarks 2006: Workshop for Young Scientists on the Physics of Ultrarelativistic Nucleus-Nucleus Collisions, May 2006, Villasimius, Italy. pp.365-369, ⟨10.1140/epjc/s10052-006-0112-7⟩. ⟨in2p3-00127901⟩

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