J/{psi} Production vs Centrality, Transverse Momentum, and Rapidity in Au + Au Collisions at sqrt(s_NN) = 200 GeV

Journal Article · Fri Jun 01 04:00:00 EDT 2007 · Physical Review Letters

OSTI ID:931516

Awes, Terry C ^[1]; Batsouli, Sotiria ^[2]; Cianciolo, Vince ^[1]; Efremenko, Yuri ^[2]; Plasil, F ^[1]; Read, Jr, Kenneth F ^[1]; Silvermyr, David O ^[1]; Sorensen, Soren P ^[3]; Stankus, Paul W ^[1]; Young, Glenn R ^[1]; Zhang, Chun ^[2]

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1. ORNL
2. University of Tennessee, Knoxville (UTK) & Oak Ridge National Laboratory (ORNL)
3. University of Tennessee, Knoxville (UTK)

The PHENIX experiment at the BNL Relativistic Heavy Ion Collider (RHIC)has measured J/{psi} production for rapidities -2.2<y<2.2 in Au+Au collisions at {radical}(s{sub NN})=200 GeV. The J/{psi} invariant yield and nuclear modification factor R{sub AA} as a function of centrality, transverse momentum, and rapidity are reported. A suppression of J/{psi} relative to binary collision scaling of proton-proton reaction yields is observed. Models which describe the lower energy J/{psi} data at the CERN Super Proton Synchrotron invoking only J/psi destruction based on the local medium density predicta significantly larger suppression at RHIC and more suppression at midrapidity than at forward rapidity. Both trends are contradicted by our data.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 931516
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Vol. 98; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ATOM-ATOM COLLISIONS
BNL
CERN
GOLD
HEAVY IONS
MODIFICATIONS
PARTICLE RAPIDITY
PRODUCTION
PROTONS
SYNCHROTRONS
TRANSVERSE MOMENTUM