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Paper detail

Polyakov linear-sigma model in mean-field approximation and optimized perturbation theory

We compare results from the Polyakov linear-sigma model (PLSM) in optimized perturbation theory (OPT) with the mean-field approximation (MFA). At finite temperatures and chemical potentials, the chiral condensates and the decofinement order parameters, the thermodynamic pressure, the pseudo-critical temperatures, the subtracted condensates, the second- and high-order moments of various conserved charges (cumulants) obtained in MFA are compared with OPT and also confronted to available lattice QCD simulations. We conclude that when moving from lower- to higher-order moments of various quantum charges, OPT becomes more closer to QCD.

preprint2019arXivOpen access
Abdel Nasser TawfikCarsten GreinerAbdel Magied DiabM. T. GhoneimH. Anwer
hep-phhep-th
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Abdel Nasser TawfikCarsten GreinerAbdel Magied DiabM. T. GhoneimH. Anwer

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