PoS - Proceedings of Science
Volume 336 - XIII Quark Confinement and the Hadron Spectrum (Confinement2018) - A: Vacuum structure and confinement
Nonperturbative quark-gluon thermodynamics at finite density.
M. Andreichikov* and Y. Simonov
Full text: pdf
Pre-published on: September 12, 2019
Published on: September 26, 2019
Abstract
Thermodynamics of the quark-gluon plasma at finite density is studied with the vacuum correlator method. The contribution of the nonperturbative effects is defined by the Polyakov loops and colormagnetic confinement. An analytical expression was obtained for the equation of state $P(T,\mu)$ for $0 < \mu < 400 \ MeV$ in a good agreement with current lattice data at zero density. A set of branching points were found for the $P(T,\mu)$ in a complex $\mu$-plane which coincide with the Roberge-Weiss singularities.
DOI: https://doi.org/10.22323/1.336.0037
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