Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10723000 | Physics Letters B | 2007 | 5 Pages |
Abstract
It is argued that the dominant contribution to the interaction of quark-gluon plasma at moderate T⩾Tc 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 Lfund(T),Ladj(T)=(Lfund)9/4 known from lattice and analytic calculations. Phase transition at any μ is described as a transition due to vanishing of one of correlators, DE(x), which implies the change of gluonic condensate ÎG2. Resulting transition temperature Tc(μ) is calculated in terms of ÎG2 and Lfund(Tc). The phase curve Tc(μ) is in a good agreement with lattice data. In particular Tc(0)=0.27; 0.19; 0.17 GeV for nf=0,2,3 and fixed ÎG2=0.0035 GeV4.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Yu.A. Simonov, M.A. Trusov,