PMID: 15245274Jul 13, 2004Paper

In-medium effects on charmonium production in heavy-ion collisions

Physical Review Letters
Loïc GrandchampGerald E Brown

Abstract

Charmonium production in heavy-ion collisions is investigated within a kinetic theory framework incorporating in-medium properties of open- and hidden-charm states in line with recent QCD lattice calculations. A continuously decreasing open-charm threshold across the phase boundary of hadronic and quark-gluon matter is found to have important implications for the equilibrium abundance of charmonium states. The survival of J/psi resonance states above the transition temperature enables their recreation also in the quark-gluon plasma. Including effects of chemical and thermal off-equilibrium, we compare our model results to available experimental data at CERN SPS and BNL RHIC energies. In particular, earlier found discrepancies in the psi(')/psi ratio can be resolved.

References

Aug 1, 1987·Physical Review. D·V BernardI Zahed
May 1, 1988·Physical Review. D·B Svetitsky
Jun 1, 1995·Physical Review C: Nuclear Physics·P LévaiX N Wang

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Citations

Jul 30, 2016·The European Physical Journal. C, Particles and Fields·A AndronicP Zhuang
Sep 21, 2018·Nature·Anton AndronicJohanna Stachel
Oct 13, 2007·Physical Review Letters·R ArnaldiUNKNOWN NA60 Collaboration
Feb 7, 2007·Physical Review Letters·Li YanNu Xu

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