Hydrodynamic results on multiplicity fluctuations in heavy-ion collisions
arXiv:1910.00705 · doi:10.1103/PhysRevC.101.024904
Abstract
Multiplicity fluctuations are one of the most crucial observables in the Beam Energy Scan program of the Relativistic Heavy Ion Collider. It is understood that they can be utilized to probe the whereabouts of the critical point on the phase diagram of the QCD matter. However, a significant portion of these fluctuations is, apart from that related to the QCD phase transition, attributed to the other origins, which we refer to as "noncritical" ones. The present study is dedicated to the noncritical aspects of the multiplicity fluctuations in heavy-ion collisions. In particular, we focus on those of dynamical origin, such as the hydrodynamic expansion of the system and the event-by-event initial fluctuations, in addition to the usual thermal fluctuations, finite volume corrections, and resonance decay at the freeze-out surface. The obtained results are compared to those of the hadronic resonance gas model as well as to the experimental data.
arXiv comment20 pages, 3 figures, 1 table
References in corpus (50)
- Signatures of the Tricritical Point in QCD
- Hydrodynamics with Triangle Anomalies
- Event-by-Event Fluctuations in Heavy Ion Collisions and the QCD Critical Point
- Critical point of QCD at finite T and μ, lattice results for physical quark masses
- Lattice determination of the critical point of QCD at finite T and μ
- Non-Gaussian fluctuations near the QCD critical point
- On the Phase Diagram of QCD
- Color Superconductivity and Chiral Symmetry Restoration at Nonzero Baryon Density and Temperature
- Parton Ladder Splitting and the Rapidity Dependence of Transverse Momentum Spectra in Deuteron-Gold Collisions 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
- Lattice Results on QCD Thermodynamics
- Parton-Based Gribov-Regge Theory
- Probing freeze-out conditions in heavy ion collisions with moments of charge fluctuations
- Hydro+: hydrodynamics with parametric slowing down and fluctuations near the critical point
- The "Ridge" in Proton-Proton Scattering at 7 TeV
- The phase diagram and bulk thermodynamical quantities in the NJL model at finite temperature and density
- Topics on Hydrodynamic Model of Nucleus-Nucleus Collisions
- Evidence for flow in pPb collisions at 5 TeV from v2 mass splitting
- QCD critical region and higher moments for three flavor models
- Conserved number fluctuations in a hadron resonance gas model
- Nonequilibrium chiral fluid dynamics including dissipation and noise
- Fluctuations of conserved charges in relativistic heavy ion collisions: An introduction
- STAR experiment results from the beam energy scan program at RHIC
- Fluctuations of the Initial Conditions and the Continuous Emission in Hydrodynamic Description of Two-Pion Interferometry
- Importance of Granular Structure in the Initial Conditions for the Elliptic Flow
- Hydrodynamics Near a Chiral Critical Point
- Multiplicity Fluctuations in Hadron-Resonance Gas
- Initial Condition for QGP Evolution from NEXUS
- Chiral fluid dynamics with explicit propagation of the Polyakov loop
- Energy dependence of particle ratio fluctuations in central Pb+Pb collisions from ~6.3 to 17.3 GeV
- STAR Results from the RHIC Beam Energy Scan-I
- Correlated fluctuations near the QCD critical point
- Particlization with local event-by-event conservation laws
- Higher Moments of Net-Particle Multiplicity Distributions
- Multiplicity fluctuations in the hadron gas with exact conservation laws
- Decomposition of fluctuating initial conditions and flow harmonics
- -Dependent Particle Number Fluctuations From Principal Component Analyses in Hydrodynamic Simulations of Heavy-Ion Collisions
- On the origin of trigger-angle dependence of di-hadron correlations
- Particle emission in hydrodynamics: a problem needing a solution
- Critical versus spurious fluctuations in the search for the QCD critical point
- pT distribution of hyperons in 200A GeV Au-Au by smoothed particle hydrodynamics
- Multiplicity Distributions in Canonical and Microcanonical Statistical Ensembles
- Non-critical fluctuations of (net) charges and (net) protons from iEBE-VISHNU hybrid model
- Multiplicity fluctuations near the QCD critical point
- Higher moments of multiplicity fluctuations in a hadron-resonance gas with exact conservation laws
- Hydrodynamic approach to the centrality dependence of di-hadron correlations
- Event-plane dependent di-hadron correlations with harmonic subtraction in a hydrodynamic model
- Estimation of Stopped Protons at Energies Relevant for a Beam Energy Scan at the BNL Relativistic Heavy-Ion Collider
- Centrality and transverse momentum dependence of dihadron correlations in a hydrodynamic model