publication . Preprint . 2016

Equation of state of a quark-Polyakov loop-meson mixture in the PNJL model at finite temperature

Torres-Rincon, Juan M.; Aichelin, Joerg;
Open Access English
  • Published: 07 Jan 2016
  • Publisher: HAL CCSD
Abstract
Recent consensus on the $N_f=2+1$ equation of state at vanishing chemical potential from different lattice-QCD groups has spoiled the previous agreement with the outcome from the mean-field Polyakov-Nambu-Jona-Lasinio model. In this letter we review the thermodynamics of the PNJL model introducing two important aspects needed to describe the pressure computed in the lattice QCD. First, we consider the thermodynamics of the model beyond the mean-field approach to include pseudoscalar and scalar mesonic-like fluctuations into the grand-canonical potential. This accounts for the hadronic pressure of the system below the critical temperature. On the other hand we al...
Subjects
arXiv: High Energy Physics::LatticeHigh Energy Physics::Phenomenology
free text keywords: [ PHYS.NUCL ] Physics [physics]/Nuclear Theory [nucl-th], [ PHYS.HPHE ] Physics [physics]/High Energy Physics - Phenomenology [hep-ph], Nuclear Theory, High Energy Physics - Phenomenology
Related Organizations
Funded by
EC| HADRONPHYSICS3
Project
HADRONPHYSICS3
Study of Strongly Interacting Matter
  • Funder: European Commission (EC)
  • Project Code: 283286
  • Funding stream: FP7 | SP4 | INFRA
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