出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We study the free energies of heavy quarks calculated from Polyakov loop correlation functions
in full 2-flavour QCD using the p4-improved staggered fermion action. A small but finite baryon
number density is included via Taylor expansion of the fermion determinant in the baryo-chemical
potential m. For temperatures above Tc we extract Debye screening masses from the large distance
behaviour of the free energies and compare their m-dependence to perturbative results.
