Regular Article - Theoretical Physics
Heavy-quark free energies, internal-energy and entropy contributions
Fakultät für Physik, Universität Bielefeld, 33615, Bielefeld, Germany
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Published online: 13 December 2008
We present lattice QCD results on heavy-quark free energies, extract from its temperature dependence the entropy and internal-energy contributions, and discuss the onset of medium effects that lead to screening of static quark–antiquark sources in a thermal medium. The detailed analysis of the temperature and distance dependence of the different contributions indicate the complex non-perturbative nature of strongly interacting matter. We shall discuss the necessity to include those effects in studies on the behavior of heavy quarks, heavy-quark bound states and their dissociation in the quark–gluon plasma phase.
© Springer-Verlag , 2009