Vacuum phase transition at nonzero baryon density
Abstract
It is argued that the dominant contribution to the interaction of quark gluon plasma at moderate is given by the nonperturbative vacuum field correlators. Basing on that nonperturbative equation of state of quark-gluon plasma is computed and in the lowest approximation expressed in terms of absolute values of Polyakov lines for quarks and gluons known from lattice and analytic calculations. Phase transition at any is described as a transition due to vanishing of one of correlators, , which implies the change of gluonic condensate . Resulting transition temperature is calculated in terms of and . The phase curve is in good agreement with lattice data. In particular GeV for and fixed GeV.
Cite
@article{arxiv.hep-ph/0703277,
title = {Vacuum phase transition at nonzero baryon density},
author = {Yu. A. Simonov and M. A. Trusov},
journal= {arXiv preprint arXiv:hep-ph/0703277},
year = {2008}
}
Comments
14 pages, 2 figures, 1 table; some abbreviations explained; to appear in Physics Letters B