Bin Zhang and Donald L Johnson 2005 J. Phys. G: Nucl. Part. Phys. 31 S297 doi:10.1088/0954-3899/31/4/036
Kinetic formation of J/ψ at RHIC
Bin Zhang and Donald L Johnson
Show affiliationsCentrality dependence of J/ψ production in Au–Au collisions at 
is studied using the Glauber model plus the kinetic formation model. Initial J/ψ production and destruction by incoming nucleons are described by the Glauber model. J/ψ-charm equilibration in the gluon plasma is described by the kinetic formation model. We explore the possibility of J/ψ suppression suggested by the recent PHENIX data. We show that the J/ψ yield monotonically decreases with increasing centrality in the kinetic formation model when the charm mass is smaller than a critical mass. The final J/ψ yield is between the value after the Glauber suppression and the dynamical equilibrium value. This underscores the importance of both J/ψ 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/ψ-charm equilibration.
- PACS
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25.75.Dw Particle and resonance production
27.80.+w 190(less-than-or-equal-to)A(less-than-or-equal-to)219
24.10.Pa Thermal and statistical models
25.75.Nq Quark deconfinement, quark–gluon plasma production, and phase transitions
- Subjects
- Dates
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Issue 4 (April 2005)
Received 22 December 2004
Published 17 March 2005
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Kinetic formation of J/ψ at RHIC
Bin Zhang and Donald L Johnson 2005 J. Phys. G: Nucl. Part. Phys. 31 S297
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