J/{psi} production in Au+Au collisions at {radical}(s{sub NN})=200 GeV and the nuclear absorption

Journal Article · Sun Oct 15 04:00:00 EDT 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.74.044907· OSTI ID:20863881

Chaudhuri, A K ^[1]

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1. Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700 064 (India)

It is shown that a quantum chromodynamics-based nuclear absorption model, with few parameters fixed to reproduce experimental J/{psi} yield in 200 GeV proton-proton/proton-nucleon and 450 GeV proton-nucleon collisions, can explain the preliminary PHENIX data on the centrality dependence of J/{psi} suppression in Cu+Cu collisions at Relativistic Heavy Ion Collider (RHIC) energy, {radical}(s{sub NN})=200 GeV. However, the model does not give a satisfactory description for the preliminary PHENIX data on the centrality dependence of J/{psi} suppression in Au+Au collisions. The analysis suggests that in Au+Au collisions, J/{psi} are suppressed in a medium unlike the medium produced in CERN Super Proton Synchrotron energy nuclear collisions or in RHIC energy Cu+Cu collisions.

• OSTI ID: 20863881
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 74; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ABSORPTION
BROOKHAVEN RHIC
COPPER 63 REACTIONS
COPPER 63 TARGET
GEV RANGE
GOLD 197 REACTIONS
GOLD 197 TARGET
J PSI-3097 MESONS
LINEAR ABSORPTION MODELS
MULTIPARTICLE SPECTROMETERS
NUCLEAR REACTION YIELD
PARTICLE IDENTIFICATION
PROTON-NUCLEON INTERACTIONS
PROTONS
QUANTUM CHROMODYNAMICS