Effective models of two-flavor QCD: finite $\mu$ and $m_q$-dependence

Abstract

We study effective models of chiral fields and Polyakov loop expected to describe the dynamics responsible for the phase structure of two-flavor QCD at finite temperature and density. We consider chiral sector described either using linear sigma model or Nambu-Jona-Lasinio model and study the phase diagram and determine the location of the critical point as a function of the explicit chiral symmetry breaking (i.e. the bare quark mass $m_q$). We also discuss the possible emergence of the quarkyonic phase in this model.

arXiv comment10 pages, 6 figures

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Cited by in corpus (24)

• Deconfinement and Chiral Symmetry Restoration in a Strong Magnetic Background
• The renormalization group and quark number fluctuations in the Polyakov loop extended quark-meson model at finite baryon density
• On finite-temperature holographic QCD in the Veneziano limit
• Hot Quark Matter with an Axial Chemical Potential
• Magnetic Susceptibility of the Quark Condensate and Polarization from Chiral Models
• Chiral transition in a magnetic field and at finite baryon density
• The Critical End Point of Quantum Chromodynamics Detected by Chirally Imbalanced Quark Matter
• QCD phase diagram at finite baryon and isospin chemical potentials in Polyakov loop extended quark meson model with vector interaction
• Revisiting the Phase Structure of the Polyakov-quark-meson Model in the presence of Vacuum Fermion Fluctuation
• Quark Matter in a Strong Magnetic Background
• Role of mesonic fluctuations in the Polyakov loop extended quark-meson model at imaginary chemical potential
• Comparing symmetry restoration trends for meson masses and mixing angles in the QCD-like three quark flavor models
• Quark and Polyakov-loop correlations in effective models at zero and non-vanishing density
• Strong-interaction matter under extreme conditions from chiral quark models with nonlocal separable interactions
• Exploring axial $U(1)$ restoration in a modified 2+1 flavor Polyakov quark meson model
• Exploring criticality in the QCD-like two quark flavour models
• Color screening masses from string models
• Deconfinement vs. chiral symmetry and higher representation matter
• On-shell versus curvature mass parameter fixing schemes in the quark-meson model and its phase diagrams
• Mass dependence of the deconfinement and chiral restoration critical temperatures in nonlocal SU(2) PNJL models
• Nucleon Properties at Finite Temperature in the Extended Quark-Sigma Model
• Chiral symmetry breaking and pion condensation in the early universe
• Chiral symmetry restoration and deconfinement in strong magnetic fields
• Transport coefficients of chiral fluid dynamics using low-energy effective models