Heavy quark chemical equilibration rate as a transport coefficient

@article{Bdeker2012HeavyQC,
  title={Heavy quark chemical equilibration rate as a transport coefficient},
  author={D. B{\"o}deker and M. Laine},
  journal={Journal of High Energy Physics},
  year={2012},
  volume={2012},
  pages={1-21}
}
A bstractMotivated by indications that heavy (charm and bottom) quarks interact strongly at temperatures generated in heavy ion collision experiments, we suggest a non- perturbative definition of a heavy quark chemical equilibration rate as a transport coefficient. Within leading-order perturbation theory (corresponding to 3-loop level), the definition is argued to reduce to an expression obtained from the Boltzmann equation. Around T ~ 400 MeV, an order-of-magnitude estimate for charm yields a… Expand
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