Dynamics of the conserved net-baryon density near QCD critical point within inhomogeneous quark-gluon plasma profile

Abstract

This paper investigates the dynamics of the net-baryon multiplicity fluctuations near the QCD critical point, within the inhomogeneous temperature and baryon chemical potential profile of quark-gluon plasma from the hydrodynamics. The Langevin dynamics of conserved net-baryon density are solved numerically within the temperature and chemical potential profile borrowing from hydrodynamic simulation. It is found that the local systems at different rapidities reach the critical point at different proper times, owing to the inhomogeneous temperature and chemical potential. As a result, it is observed the pronounced enhancement of the magnitude for the net-baryon multiplicity fluctuations with large rapidity acceptance at the freeze-out surface, which is the consequence of the combined effect of critical slowing down and inhomogeneous profile.

arXiv commentversion accepted by Phys. Rev. C

References in corpus (42)

• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• A Multi-Phase Transport Model for Relativistic Heavy Ion Collisions
• The phase diagram of dense QCD
• On the sign of kurtosis near the QCD critical point
• Mapping the Phases of Quantum Chromodynamics with Beam Energy Scan
• The QCD Equation of State to $\mathcal{O}({\mu }_B^6)$ from Lattice QCD
• Slowing Out of Equilibrium Near the QCD Critical Point
• QCD at finite temperature and chemical potential from Dyson-Schwinger equations
• Baryon Number, Strangeness and Electric Charge Fluctuations in QCD at High Temperature
• Non-monotonic energy dependence of net-proton number fluctuations
• Hydro+: hydrodynamics with parametric slowing down and fluctuations near the critical point
• Lattice QCD and heavy ion collisions: a review of recent progress
• Relativistic Theory of Hydrodynamic Fluctuations with Applications to Heavy Ion Collisions
• Dynamic universality class of the QCD critical point
• Dynamical initial state model for relativistic heavy-ion collisions
• Using Higher Moments of Fluctuations and their Ratios in the Search for the QCD Critical Point
• Hydrodynamical evolution near the QCD critical end point
• Cumulants and Correlation Functions of Net-proton, Proton and Antiproton Multiplicity Distributions in Au+Au Collisions at energies available at the BNL Relativistic Heavy Ion Collider
• Real time evolution of non-Gaussian cumulants in the QCD critical regime
• Nonequilibrium chiral fluid dynamics including dissipation and noise
• Fluctuations of conserved charges in relativistic heavy ion collisions: An introduction
• Diffusive dynamics of critical fluctuations near the QCD critical point
• Equation of state for hot QCD and compact stars from a mean field approach
• QCD at finite temperature and density within the fRG approach: An overview
• Higher-order baryon number susceptibilities: interplay between the chiral and the nuclear liquid-gas transitions
• The QCD phase diagram and Beam Energy Scan physics: a theory overview
• Fluctuation dynamics in a relativistic fluid with a critical point
• Searching for the QCD critical point via the rapidity dependence of cumulants
• Evolution of Non-Gaussian Hydrodynamic Fluctuations
• Hydrodynamics of charge fluctuations and balance functions
• Modeling the diffusive dynamics of critical fluctuations near the QCD critical point
• Dynamical evolution of critical fluctuations and its observation in heavy ion collisions
• Net-baryon number variance and kurtosis within nonequilibrium chiral fluid dynamics
• Dynamical exploring the QCD matter at finite temperatures and densities-a short review
• Rapidity scan with multistage hydrodynamic and statistical thermal models
• Critical net-baryon fluctuations in an expanding system
• Multiplicative noise and the diffusion of conserved densities
• Universal scaling of conserved charge in the stochastic diffusion dynamics
• Dynamical critical fluctuations near the QCD critical point with hydrodynamic cooling rate
• N-particle irreducible actions for stochastic fluids
• Generalized nonlinear Langevin equation from quantum nonlinear projection operator
• Thermal noise in non-boost-invariant dissipative hydrodynamics