QCD critical end point from a realistic PNJL model

Abstract

With parameters fixed by critical temperature and equation of state at zero baryon chemical potential, a realistic Polyakov--Nambu--Jona-Lasinio (rPNJL) model predicts a critical end point of chiral phase transition at $({\mu }_B^E=720\mathrm{MeV},T^E=93\mathrm{MeV})$. The extracted freeze-out line from heavy ion collisions is close to the chiral phase transition boundary in the rPNJL model, and the kurtosis $\kappa {\sigma }^2$ of baryon number fluctuations from the rPNJL model along the experimental freeze-out line agrees well with the BES-I measurement. Our analysis shows that the dip structure of measured $\kappa {\sigma }^2$ is determined by the relationship between the freeze-out line and chiral phase transition line at low baryon density region, and the peak structure can be regarded as a clean signature for the existence of CEP.

arXiv comment8 papges, proceedings of QCD@Work 2018

References in corpus (37)

• Non-Gaussian fluctuations near the QCD critical point
• The Phase Structure of the Polyakov--Quark-Meson Model
• Phase diagrams in the three-flavor Nambu--Jona-Lasinio model with the Polyakov loop
• A new method to study lattice QCD at finite temperature and chemical potential
• Energy Dependence of Moments of Net-proton Multiplicity Distributions at RHIC
• On the sign of kurtosis near the QCD critical point
• Search for the QCD Critical Point with Fluctuations of Conserved Quantities in Relativistic Heavy-Ion Collisions at RHIC : An Overview
• Higher Moments of Net-proton Multiplicity Distributions at RHIC
• Universality, the QCD critical/tricritical point and the quark number susceptibility
• Third moments of conserved charges as probes of QCD phase structure
• Phase diagram and critical endpoint for strongly-interacting quarks
• Critical Points in the Linear Sigma Model with Quarks
• Critical point in the phase diagram of primordial quark-gluon matter from black hole physics
• Using Higher Moments of Fluctuations and their Ratios in the Search for the QCD Critical Point
• Real time evolution of non-Gaussian cumulants in the QCD critical regime
• The phase diagram and bulk thermodynamical quantities in the NJL model at finite temperature and density
• Thermodynamics of the PNJL model
• QCD critical region and higher moments for three flavor models
• Phase diagram and thermodynamics of the Polyakov linear sigma model with three quark flavors
• PNJL model with a Van der Monde term
• Baryon number fluctuations at finite temperature and density
• Universal off-equilibrium scaling of critical cumulants in the QCD phase diagram
• Cluster Expansion Model for QCD Baryon Number Fluctuations: No Phase Transition at ${\mu }_B/T<\pi$
• The QCD Equation of State to $\mathcal{O}({\mu }_B^4)$ from Lattice QCD
• Fluctuations and Correlations of Conserved Charges near the QCD Critical Point
• Robust characteristics of nongaussian fluctuations from the NJL model
• The phase structure of QCD
• Locating the QCD critical end point through the peaked baryon number susceptibilities along the freeze-out line
• Identified particle production and freeze-out properties in heavy-ion collisions at RHIC Beam Energy Scan program
• Baryon susceptibilities, nongaussian moments and the QCD critical point
• Density Effect on Hadronization of a Quark Plasma
• Polyakov-Nambu-Jona-Lasinio phase diagrams and quarkyonic phase from order parameters
• Reparametrizing the Polyakov$-$Nambu$-$Jona-Lasinio model
• Phase transition of strongly interacting matter with a chemical potential dependent Polyakov loop potential
• Updates to the p+p and A+A chemical freeze-out lines from the new experimental data
• Susceptibilities of Conserved Charges within a Modified Nambu-Jona-Lasinio Model
• Baryon number fluctuations and QCD phase structure

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