Polyakov linear SU(3) sigma model: features of higher order moments in dense and thermal hadronic medium

Abstract

In order to characterize the higher order moments of the particle multiplicity, we implement the linear-sigma model with Polyakov-loop correction. We first studied the critical phenomena and estimated some thermodynamic quantities. Then, we compared all these results with the first--principle lattice QCD calculations. Then, the extensive study of non-normalized four moments is followed by investigating their thermal and density dependence. We repeat this for moments normalized to temperature and chemical potential. The fluctuations of the second order moment is used to estimate the chiral phase--transition. Then, we implement all these in mapping out the chiral phase transition, which shall be compared with the freeze-out parameters estimated from the lattice QCD simulations and the thermal models are compared with the chiral phase--diagram.

38 pages, 17 figures with 30 eps graphs to appear in PRC

References in corpus (12)

• The QCD transition temperature: results with physical masses in the continuum limit II.
• The QCD Equation of State with almost Physical Quark Masses
• Equation of state and QCD transition at finite temperature
• The Phase Structure of the Polyakov--Quark-Meson Model
• Susceptibilities and speed of sound from PNJL model
• Susceptibilities near the QCD (tri)critical point
• Quark number susceptibilities: lattice QCD versus PNJL model
• The critical surface of the SU(3)_L x SU(3)_R chiral quark model at non-zero baryon density
• Degrees of freedom and the phase transitions of two flavor QCD
• Antiproton-to-Proton Ratios for ALICE Heavy-Ion Collisions
• Susceptibilities with multi-quark interactions in PNJL model
• Thermodynamics and higher order moments in SU(3) linear $\sigma$-model with gluonic quasi-particles

Cited by in corpus (10)

• Polyakov SU(3) extended linear $\sigma$-model: Sixteen mesonic states in chiral phase-structure
• SU(3) Polyakov Linear Sigma-Model in an External Magnetic Field
• SU(3) Polyakov linear-sigma model: Conductivity and viscous properties of QCD matter in thermal medium
• SU(3) Polyakov Linear $\sigma$-Model in Magnetic Field: Thermodynamics, Higher-Order Moments, Chiral Phase Structure and Meson Masses
• Chiral phase structure and sixteen meson states in SU(3) Polyakov linear-sigma model at finite temperature and chemical potential in strong magnetic field
• Influence of finite volume effect on the Polyakov Quark-Meson model
• Thermodynamics and higher order moments in SU(3) linear $\sigma$-model with gluonic quasi-particles
• Mass Spectrum of Non-Charmed and Charmed Meson States in Extended Linear-Sigma Model
• Non-extensive Effects on the QCD Equation of State and Fluctuations of Conserved Charges within Polyakov Quark Meson Model
• Derivation of Meson Masses in SU(3) and SU(4) Extended Linear-Sigma Model at Finite Temperature