Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

6-2007

Journal or Book Title

Physical Review Letters

Volume

98

Issue

23

First Page

232301

DOI

10.1103/PhysRevLett.98.232301

Abstract

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 root s(NN)=200 GeV. The J/psi invariant yield and nuclear modification factor R-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 predict a significantly larger suppression at RHIC and more suppression at midrapidity than at forward rapidity. Both trends are contradicted by our data.

Comments

This article is published as Adare, A., S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, H. Al-Bataineh, J. Alexander et al. "J/ψ Production versus Centrality, Transverse Momentum, andRapidity in Au+ Au Collisions at s N N= 200 GeV." Physical review letters 98, no. 23 (2007): 232301. DOI:10.1103/PhysRevLett.98.232301. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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