The QCD phase diagram and statistics friendly distributions

Abstract

The preliminary STAR data for proton cumulants for central collisions at \sqrt{s}=7.7 GeV are consistent with a two-component proton multiplicity distribution. We show that this two-component distribution is statistics friendly in that factorial cumulants of surprisingly high orders may be extracted with a relatively small number of events. As a consequence the two-component model can be tested and verified right now with the presently available STAR data from the first phase of the RHIC beam energy scan.

arXiv commentProceedings, Quark Matter 2019, Wuhan

References in corpus (8)

• Non-Gaussian fluctuations near the QCD critical point
• Unified Description of Efficiency Correction and Error Estimation for Moments of Conserved Quantities in Heavy-Ion Collisions
• Cumulants and Correlation Functions vs the QCD phase diagram
• Energy Dependence of Moments of Net-Proton and Net-Charge Multiplicity Distributions at STAR
• Correlated stopping, proton clusters and higher order proton cumulants
• Large proton cumulants from the superposition of ordinary multiplicity distributions
• Mapping the QCD phase diagram with statistics friendly distributions
• Inverse moments of univariate discrete distributions via the Poisson expansion

Cited by in corpus (2)

• Higher-Order Cumulants and Correlation Functions of Proton Multiplicity Distributions in $\sqrt{s_{\mathrm{NN}}}$ = 3 GeV Au+Au Collisions at the RHIC STAR Experiment
• Nucleon clustering at kinetic freezeout of heavy-ion collisions via path-integral Monte Carlo