Correlations of conserved charges and QCD phase structure

Abstract

Correlations of conserved charges, i.e., the baryon number, electric charge and the strangeness, have been calculated at finite temperature and chemical potential up to the fourth order. The calculations are done in a 2+1 flavor low energy effective theory, where quantum and thermal fluctuations are encoded through the evolution of flow equations within the functional renormalization group approach. Strangeness neutrality and a fixed ratio of the electric charge to the baryon number density are implemented throughout the computation. We find that higher-order correlations carry more sensitive critical dynamics in comparison to the quadratic ones, and a non-monotonic dependence of the fourth-order correlations between the baryon number and strangeness, $-{\chi }_{31}^{BS}/{\chi }_2^S$ and ${\chi }_{22}^{BS}/{\chi }_2^S$, on the collision energy is found.

arXiv comment14 pages, 9 figures, 1 table; v2: discussion and Fig.5 added

References in corpus (61)

• Exact evolution equation for the effective potential
• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• Non-Perturbative Renormalization Flow in Quantum Field Theory and Statistical Physics
• Chiral effective model with the Polyakov loop
• Aspects of the Functional Renormalisation Group
• Phases of QCD: lattice thermodynamics and a field theoretical model
• Decoding the phase structure of QCD via particle production at high energy
• Non-Gaussian fluctuations near the QCD critical point
• Chiral crossover in QCD at zero and non-zero chemical potentials
• Bulk Properties of the Medium Produced in Relativistic Heavy-Ion Collisions from the Beam Energy Scan Program
• The Phase Structure of the Polyakov--Quark-Meson Model
• Energy Dependence of Moments of Net-proton Multiplicity Distributions at RHIC
• Search for the QCD Critical Point with Fluctuations of Conserved Quantities in Relativistic Heavy-Ion Collisions at RHIC : An Overview
• The QCD Equation of State to $\mathcal{O}({\mu }_B^6)$ from Lattice QCD
• The QCD phase structure at finite temperature and density
• Introduction to the functional RG and applications to gauge theories
• Beam energy dependence of moments of the net-charge multiplicity distributions in Au+Au collisions at RHIC
• Probing freeze-out conditions in heavy ion collisions with moments of charge fluctuations
• QCD at finite temperature and chemical potential from Dyson-Schwinger equations
• Fermion Interactions and Universal Behavior in Strongly Interacting Theories
• Chiral symmetry breaking in continuum QCD
• The phase structure of the Polyakov--quark-meson model beyond mean field
• Landau gauge Yang-Mills correlation functions
• Non-perturbative quark, gluon and meson correlators of unquenched QCD
• The Phase Diagram of the Quark-Meson Model
• Chiral phase transition temperature in (2+1)-Flavor QCD
• On the relation of quark confinement and chiral symmetry breaking
• Phase structure of three and four flavor QCD
• Susceptibilities near the QCD (tri)critical point
• Higher order fluctuations and correlations of conserved charges from lattice QCD
• From Quarks and Gluons to Hadrons: Chiral Symmetry Breaking in Dynamical QCD
• 2+1 Flavor Polyakov--Nambu--Jona-Lasinio Model at Finite Temperature and Nonzero Chemical Potential
• Skewness, kurtosis and the 5th and 6th order cumulants of net baryon-number distributions from lattice QCD confront high-statistics STAR data
• Meson fluctuations and thermodynamics of the Polyakov loop extended quark-meson model
• Renormalization Group Approach towards the QCD Phase Diagram
• Collision Energy Dependence of Moments of Net-Kaon Multiplicity Distributions at RHIC
• Improved Polyakov-loop potential for effective models from functional calculations
• Chiral and deconfinement phase transitions of two-flavour QCD at finite temperature and chemical potential
• Thermodynamics of QCD at vanishing density
• Magnetic catalysis in hot and dense quark matter and quantum fluctuations
• The QCD Phase Boundary from Quark-Gluon Dynamics
• Skewness and kurtosis of net baryon-number distributions at small values of the baryon chemical potential
• The Vacuum Structure of Vector Mesons in QCD
• Polyakov loop fluctuations in SU(3) lattice gauge theory and an effective gluon potential
• Baryon number fluctuations at finite temperature and density
• On the Phase Structure of QCD in a Finite Volume
• Fluctuation-induced modifications of the phase structure in (2+1)-flavor QCD
• In-Medium Spectral Functions of Vector- and Axial-Vector Mesons from the Functional Renormalization Group
• QCD phase transitions via a refined truncation of Dyson-Schwinger equations
• Non-perturbative finite-temperature Yang-Mills theory
• On the relevance of matter and glue dynamics for baryon number fluctuations
• Phase diagram and thermal properties of strong-interaction matter
• The Effect of Fluctuations on the QCD Critical Point in a Finite Volume
• Fierz-complete NJL model study: fixed points and phase structure at finite temperature and density
• Collision energy dependence of second-order off-diagonal and diagonal cumulants of net-charge, net-proton and net-kaon multiplicity distributions in Au+Au collisions
• Correlating the skewness and kurtosis of baryon number distributions
• Functional renormalization group study of the Quark-Meson model with $\omega$ meson
• Baryon number fluctuations in the 2+1 flavor low energy effective model
• Functional renormalization group study of the critical region of the quark-meson model with vector interactions
• Baryon number probability distribution at finite temperature
• Non-critical fluctuations of (net) charges and (net) protons from iEBE-VISHNU hybrid model

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• QCD at finite temperature and density within the fRG approach: An overview
• Shocks and quark-meson scatterings at large density
• Ripples of the QCD Critical Point
• Real-time dynamics of the $O(4)$ scalar theory within the fRG approach
• Critical behaviors of the $O(4)$ and $Z(2)$ symmetries in the QCD phase diagram