Two flavor chiral phase transition from nonperturbative flow equations
High Energy Physics - Phenomenology
2016-09-06 v1 High Energy Physics - Lattice
Nuclear Theory
Abstract
We employ nonperturbative flow equations to compute the equation of state for two flavor QCD within an effective quark meson model. This yields the temperature and quark mass dependence of quantities like the chiral condensate or the pion mass. A precision estimate of the universal critical equation of state for the three-dimensional O(4) Heisenberg model is presented. We explicitly connect the O(4) universal behavior near the critical temperature and zero quark mass with the physics at zero temperature and a realistic pion mass. For realistic quark masses the pion correlation length near T_c turns out to be smaller than its zero temperature value.
Cite
@article{arxiv.hep-ph/9705474,
title = {Two flavor chiral phase transition from nonperturbative flow equations},
author = {J. Berges and D. -U. Jungnickel and C. Wetterich},
journal= {arXiv preprint arXiv:hep-ph/9705474},
year = {2016}
}
Comments
49 pages including 15 figures, LaTeX, uses epsf.sty and rotate.sty