Energy Dependence of Moments of Net-Proton, Net-Kaon, and Net-Charge Multiplicity Distributions at STAR
arXiv:1611.07134 · doi:10.1088/1742-6596/736/1/012002
Abstract
One of the main goals of the RHIC Beam Energy Scan (BES) program is to study the QCD phase structure, which includes the search for the QCD critical point, over a wide range of chemical potential. Theoretical calculations predict that fluctuations of conserved quantities, such as baryon number (B), charge (Q), and strangeness (S), are sensitive to the correlation length of the dynamical system. Experimentally, higher moments of multiplicity distributions have been utilized to search for the QCD critical point in heavy-ion collisions. In this paper, we report recent efficiency-corrected cumulants and cumulants ratios of the net- proton, net-kaon, and net-charge multiplicity distributions in Au+Au collisions at 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV collected in the years 2010, 2011, and 2014 with STAR at RHIC. The centrality and energy dependence of the cumulants up to the fourth order, as well as their ratios, are presented. Furthermore, the comparisons with baseline calculations (Poisson) and non-critical-point models (UrQMD) will also be discussed.
arXiv comment32nd Winter Workshop on Nuclear Dynamics
References in corpus (16)
- Non-Gaussian fluctuations near the QCD critical point
- On the sign of kurtosis near the QCD critical point
- Fluctuations of conserved charges at finite temperature from lattice QCD
- Higher Moments of Net-proton Multiplicity Distributions at RHIC
- Fluctuations and Correlations of net baryon number, electric charge, and strangeness: A comparison of lattice QCD results with the hadron resonance gas model
- 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
- Scale for the Phase Diagram of Quantum Chromodynamics
- Baryon Number, Strangeness and Electric Charge Fluctuations in QCD at High Temperature
- QCD at finite chemical potential with six time slices
- Third moments of conserved charges as probes of QCD phase structure
- Conserved number fluctuations in a hadron resonance gas model
- Exploring the QCD Phase Structure with Beam Energy Scan in Heavy-ion Collisions
- Unified Description of Efficiency Correction and Error Estimation for Moments of Conserved Quantities in Heavy-Ion Collisions
- Error Estimation for Moments Analysis in Heavy-Ion Collision Experiments
- Search for the QCD Critical Point by Higher Moments of Net-proton Multiplicity Distributions at STAR
Cited by in corpus (5)
- Search for the QCD Critical Point with Fluctuations of Conserved Quantities in Relativistic Heavy-Ion Collisions at RHIC : An Overview
- Holographic study of higher-order baryon number susceptibilities at finite temperature and density
- Multiplicity fluctuations near the QCD critical point
- Correlation functions of net-proton multiplicity distributions in Au + Au collisions at energies available at the BNL Relativistic Heavy Ion Collider from a multiphase transport model
- Features of the QCD phase diagram from small, noisy, fluctuating systems