Ratio of baryon and electric-charge cumulants at second order with acceptance corrections
arXiv:2205.10030 · doi:10.1016/j.nuclphysa.2022.122591
Abstract
We evaluate the ratio of baryon and electric-charge cumulants at second order from the recent experimental results at GeV by the STAR Collaboration. The baryon number cumulant is reconstructed from the proton number distribution, and effects of the finite acceptance on the transverse momentum are corrected assuming the independent particle emission. We show that the obtained ratio has a dependence on the rapidity window. Comparison of the result with the hadron resonance gas model and lattice QCD numerical simulations suggests that if the fluctuations are generated from a thermal medium its temperature is significantly lower than the chemical freezeout temperature.
arXiv comment6 pages, 3 figures
References in corpus (43)
- Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
- Event-by-Event Fluctuations in Heavy Ion Collisions and the QCD Critical Point
- Non-Gaussian fluctuations near the QCD critical point
- Mapping the Phases of Quantum Chromodynamics with Beam Energy Scan
- The QCD Equation of State to from Lattice QCD
- Fluctuation Probes of Quark Deconfinement
- Charged Particle Ratio Fluctuation as a Signal for QGP
- Probing freeze-out conditions in heavy ion collisions with moments of charge fluctuations
- Hadronic fluctuations at the QCD phase transition
- Fluctuations as probe of the QCD phase transition and freeze-out in heavy ion collisions at LHC and RHIC
- Third moments of conserved charges as probes of QCD phase structure
- Freeze-out conditions from net-proton and net-charge fluctuations at RHIC
- Skewness, kurtosis and the 5th and 6th order cumulants of net baryon-number distributions from lattice QCD confront high-statistics STAR data
- Freeze-out parameters from electric charge and baryon number fluctuations: is there consistency?
- 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
- Volume fluctuations and higher order cumulants of the net baryon number
- Revealing baryon number fluctuations from proton number fluctuations in relativistic heavy ion collisions
- Strongly Intensive Quantities
- Bridging the gap between event-by-event fluctuation measurements and theory predictions in relativistic nuclear collisions
- Fluctuations of conserved charges in relativistic heavy ion collisions: An introduction
- Diagonal and off-diagonal quark number susceptibilities at high temperatures
- Relativistic nuclear collisions: Establishing a non-critical baseline for fluctuation measurements
- Skewness and kurtosis of net baryon-number distributions at small values of the baryon chemical potential
- Local Efficiency Corrections to Higher Order Cumulants
- Off-diagonal correlators of conserved charges from lattice QCD and how to relate them to experiment
- Second order cumulants of conserved charge fluctuations revisited I. Vanishing chemical potentials
- More efficient formulas for efficiency correction of cumulants and effect of using averaged efficiency
- Global baryon number conservation encoded in net-proton fluctuations measured in Pb-Pb collisions at = 2.76 TeV
- Sensitivity of multiplicity fluctuations to freeze-out conditions in heavy ion collisions
- Collision energy dependence of second-order off-diagonal and diagonal cumulants of net-charge, net-proton and net-kaon multiplicity distributions in Au+Au collisions
- Nonequilibrium time evolution of higher order cumulants of conserved charges and event-by-event analysis
- Effects of global charge conservation on time evolution of cumulants of conserved charges in relativistic heavy ion collisions
- Freeze-out conditions from strangeness observables at RHIC
- Thermal blurring of event-by-event fluctuations provoked by rapidity conversion
- Diagonal and off-diagonal susceptibilities of conserved quantities in relativistic heavy-ion collisions
- Volume fluctuation and multiplicity correlation on higher-order cumulants
- Rapidity window dependences of higher order cumulants and diffusion master equation
- A general procedure for detector-response correction of higher order cumulants
- Higher order net-proton number cumulants dependence on the centrality definition and other spurious effects
- Issues with Search for Critical Point in QCD with Relativistic Heavy Ion Collisions
- Pileup corrections on higher-order cumulants
- Higher moments of net-proton multiplicity distributions in a heavy-ion event pile-up scenario