Charmonium in strongly coupled quark-gluon plasma

Mar, 2008
12 pages
Published in:
  • Phys.Rev.C 79 (2009) 034907
e-Print:

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Abstract: (arXiv)
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.
  • 25.75.Cj
  • scattering: heavy ion
  • quark gluon: plasma
  • model: strong coupling
  • charmonium
  • quarkonium: lifetime
  • J/psi(3100)
  • psi(3685)
  • quarkonium: potential
  • diffusion: charm