2007/03/31 by Yu. A. Simonov, M. A. Trusov · 4 citations
Earth and Planetary Sciences · Physics and Astronomy · #High-Energy Particle Collisions Research #High-pressure geophysics and materials #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1016/j.physletb.2007.04.052
published as Phys.Lett.B650:36-40,2007 · 14 pages, 2 figures, 1 table; some abbreviations explained; to appear in Physics Letters B
arxiv created 2007/04/30 · openalex publication_date 2007/05/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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)9/4known 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 ΔG2. Resulting transition temperature Tc(μ) is calculated in terms of ΔG2 and Lfund(Tc). The phase curve Tc(μ) is in good agreement with lattice data. In particular Tc(0)=0.27; 0.19; 0.17 GeV for nf=0,2,3 and fixed ΔG2=0.0035 GeV4.