Intermittency analysis of proton numbers in heavy-ion collisions at energies available at the BNL Relativistic Heavy Ion Collider
arXiv:2104.11524 · doi:10.1103/PhysRevC.104.034902
Abstract
Local density fluctuations near the QCD critical point has been suggested to exhibit a power-law behavior which can be probed by an intermittency analysis on scaled factorial moment (SFM) in relativistic heavy-ion collisions. The collision energy and centrality dependence of the second-order SFMs are systematically investigated in Au Au collisions at = 7.7, 11.5, 19.6, 27, 39, 62.4, and 200 GeV within the UrQMD model. We estimate the noncritical background in the measurement of intermittency and propose a cumulative variable method to effectively remove the background contributions. We further study the effect of particle detection efficiency by implementing the RHIC (STAR) experimental tracking efficiencies in the UrQMD events. A cell-by-cell method is proposed for experimental application of efficiency corrections on SFM. This work can provide a guidance of background subtraction and efficiency correction for the experimental measurement of intermittency in the search of the QCD critical point in heavy-ion collisions.
arXiv commentReplaced with the published version
References in corpus (41)
- Microscopic Models for Ultrarelativistic Heavy Ion Collisions
- Relativistic Hadron-Hadron Collisions in the Ultra-Relativistic Quantum Molecular Dynamics Model (UrQMD)
- Signatures of the Tricritical Point in QCD
- Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
- Critical point of QCD at finite T and μ, lattice results for physical quark masses
- Non-Gaussian fluctuations near the QCD critical point
- Bulk Properties of the Medium Produced in Relativistic Heavy-Ion Collisions from the Beam Energy Scan Program
- Energy Dependence of Moments of Net-proton Multiplicity Distributions at RHIC
- On the sign of kurtosis near the QCD critical point
- Mapping the Phases of Quantum Chromodynamics with Beam Energy Scan
- Search for the QCD Critical Point with Fluctuations of Conserved Quantities in Relativistic Heavy-Ion Collisions at RHIC : An Overview
- Fluctuation Probes of Quark Deconfinement
- Fully integrated transport approach to heavy ion reactions with an intermediate hydrodynamic stage
- Scaling laws for density correlations and fluctuations in multiparticle dynamics
- Scale for the Phase Diagram of Quantum Chromodynamics
- Baryon-strangeness correlations: a diagnostic of strongly interacting matter
- QCD at finite chemical potential with six time slices
- The critical end point of QCD
- Non-monotonic energy dependence of net-proton number fluctuations
- Relation between baryon number fluctuations and experimentally observed proton number fluctuations in relativistic heavy ion collisions
- 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
- Acceptance corrections to net baryon and net charge cumulants
- QCD critical region and higher moments for three flavor models
- Proton number fluctuations in = 2.4 GeV Au+Au collisions studied with HADES
- Unified Description of Efficiency Correction and Error Estimation for Moments of Conserved Quantities in Heavy-Ion Collisions
- Local Efficiency Corrections to Higher Order Cumulants
- Critical Opalescence in Baryonic QCD Matter
- More efficient formulas for efficiency correction of cumulants and effect of using averaged efficiency
- Negative binomial multiplicity distribution in proton-proton collisions in limited pseudorapidity intervals at LHC up to sqrt (s) = 7 TeV and the clan model
- Critical QCD in Nuclear Collisions
- Efficiency correction for cumulants of multiplicity distributions based on track-by-track efficiency
- Fractality in momentum space: a signal of criticality in nuclear collisions
- Probing QCD critical fluctuations from intermittency analysis in relativistic heavy-ion collisions
- Locating the QCD critical endpoint through finite-size scaling
- Scaling properties of multiplicity fluctuations in heavy ion collisions simulated by AMPT model
- Color reconnection as a possible mechanism of intermittency in the emission spectra of charged particles in PYTHIA-generated high-multiplicity collisions at energies available at the CERN Large Hadron Collider
- Proton correlations and apparent intermittency in the UrQMD model with hadronic potentials
- Evidence for divergent baryon-number susceptibility in QCD matter
- A study of event-by-event fluctuations in relativistic heavy-ion collisions
- Event-by-Event Efficiency Fluctuations and Efficiency Correction for Cumulants of Superposed Multiplicity Distributions in Relativistic Heavy-ion Collision Experiments
- Efficiency corrections for factorial moments and cumulants of overlapping sets of particles
Cited by in corpus (6)
- Overview of intermittency analysis in heavy-ion collisions
- Measurement of Intermittency for Charged Particles in Au + Au Collisions at = 7.7-200 GeV from STAR
- Pseudorapidity Window Size Dependence of Multiplicity Fluctuations in High-Energy Collisions with System Size and Beam Energies
- Intermittency of charged particles in the hybrid UrQMD+CMC model at energies available at the BNL Relativistic Heavy Ion Collider
- Identifying weak critical fluctuations of intermittency in heavy-ion collisions with topological machine learning
- Intermittency analysis in relativistic heavy-ion collisions