We study the renormalized free energy of a heavy quark anti-quark pair in the different colour channels in full QCD at finite temperature. Similarities and differences to the quenched case are discussed and the temperature dependence as well as their short distance behavior are analyzed. The asymptotic large distance behavior of the free energy is used to define the non-perturbatively renormalized Polyakov loop which is well behaved in the continuum limit.
@article{arxiv.hep-lat/0312015,
title = {Heavy quark free energies and the renormalized Polyakov loop in full QCD},
author = {Olaf Kaczmarek and Shinji Ejiri and Frithjof Karsch and Edwin Laermann and Felix Zantow},
journal= {arXiv preprint arXiv:hep-lat/0312015},
year = {2008}
}
Comments
8 pages, 7 figures, ptptex, Talk at Finite Density QCD at Nara, Japan, 10-12 July 2003