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J/psi production in a gluon plasma produced in Au-Au collisions at the Relativistic Heavy Ion Collider | Bin Zhang
; Donald L. Johnson
; | Date: |
28 Dec 2003 | Journal: | Nucl.Phys. A741 (2004) 305-322 | Subject: | nucl-th | Affiliation: | Arkansas State University | Abstract: | Centrality dependence of J/psi production in Au-Au collisions at 200 GeV nucleon-nucleon center of mass energy is studied using the Glauber model plus the kinetic formation model. Initial J/psi production and destruction by incoming nucleons are described by the Glauber model. J/psi-charm equilibration in the gluon plasma is described by the kinetic formation model. We explore the possibility of J/psi suppression suggested by the recent PHENIX data. We show that the J/psi yield monotonically decreases with increasing centrality in the kinetic formation model when the charm mass is smaller than a critical mass. The final J/psi yield is between the value after the Glauber suppression and the dynamical equilibrium value. This underscores the importance of both J/psi production from d-Au collisions, which is essential in determining the Glauber suppression, and high statistics Au-Au data, which can further constrain final state J/psi-charm equilibration. | Source: | arXiv, nucl-th/0312118 | Services: | Forum | Review | PDF | Favorites |
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