Charmonium in strongly coupled quark-gluon plasma

Details Charmonium in strongly coupled quark-gluon plasma Charmonium in strongly coupled quark-gluon plasma

2008-03-19

arxiv.org/abs/0803.2866v2

Phys.Rev.C79:034907,2009

Physics

Nuclear Physics

Nuclear Theory

12 pages, 13 figures

Scientific paper

10.1103/PhysRevC.79.034907

The growing consensus that a strongly-coupled quark-gluon plasma (sQGP) has been observed at the SPS and RHIC experiments suggests a different framework for examining heavy quark dynamics. We present both semi-analytical treatment of Fokker-Planck (FP) evolution in pedagogical examples and numerical Langevin simulations of evolving charm quark-antiquark pairs on top of a hydrodynamically expanding fireball. In this way, we may conclude that the survival probability of bound charmonia states is greater than previously estimated, as the spatial equilibration of pairs proceeds through a ``slowly dissolving lump'' stage related to the pair interaction.

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