Multiplicity fluctuations of net protons on the hydrodynamic freeze-out surface

Abstract

This proceeding briefly summarizes our recent work on calculating the correlated fluctuations of net protons on the hydrodynamic freeze-out surface near the QCD critical point. For both Poisson and Binomial baselines, our calculations could roughly reproduce the energy dependent cumulant $C_4$ and $\kappa {\sigma }^2$ of net protons, but always over-predict $C_2$ and $C_3$ due to the positive contributions from the static critical fluctuations.

Accepted version with minor corrections and updates

References in corpus (2)

• Suppression of elliptic flow in a minimally viscous quark-gluon plasma
• Correlated fluctuations near the QCD critical point

Cited by in corpus (14)

• Search for the QCD Critical Point with Fluctuations of Conserved Quantities in Relativistic Heavy-Ion Collisions at RHIC : An Overview
• Proton Cumulants and Correlation Functions in Au + Au Collisions at $\sqrt{s_{\mathrm{NN}}}$=7.7-200 GeV from UrQMD Model
• Cumulants of event-by-event net-strangeness distributions in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$=7.7-200 GeV from UrQMD model
• The QCD Critical Point and Related Observables
• Dynamical fluctuations in critical regime and across the 1st order phase transition
• Non-critical fluctuations of (net) charges and (net) protons from iEBE-VISHNU hybrid model
• Event-by-Event Efficiency Fluctuations and Efficiency Correction for Cumulants of Superposed Multiplicity Distributions in Relativistic Heavy-ion Collision Experiments
• Enhancements of high order cumulants across the 1st order phase transition boundary
• Collective flow and hydrodynamics in large and small systems at the LHC
• Non-equilibrium cumulants within model A from crossover to first-order phase transition side
• Nonuniform-temperature effects on the phase transition in an Ising-like model
• Net-proton number cumulant ratios as function of beam energy from an expanding nonequilibrium chiral fluid
• Cumulants of the chiral order parameter at lower RHIC energies
• Static critical fluctuations on the freeze-out surface