Reconstructing particle number distributions with convoluting volume fluctuations

Abstract

We propose methods to reconstruct particle distributions with and without considering initial volume fluctuations. This approach enables us to correct for detector efficiencies and initial volume fluctuations simultaneously. Our study suggests such a tool could investigate the possible bimodal structure of net-proton distribution in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}=$7.7 GeV a signature of first-order phase transition and critical point [arXiv:1804.04463,arXiv:1811.04456].

arXiv comment11 pages, 12 figures; Final version accepted by NIM

References in corpus (21)

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• Reconstructing the impact parameter of proton-nucleus and nucleus-nucleus collisions
• Large proton cumulants from the superposition of ordinary multiplicity distributions
• Mapping the QCD phase diagram with statistics friendly distributions
• Volume fluctuation and multiplicity correlation on higher-order cumulants
• A general procedure for detector-response correction of higher order cumulants
• Statistical moments in superposition models and strongly intensive measures

Cited by in corpus (7)

• Non-monotonic energy dependence of net-proton number fluctuations
• 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
• 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
• Pileup corrections on higher-order cumulants
• A model-free procedure to correct for volume fluctuations in E-by-E analyses of particle multiplicities
• Pileup Correction on Higher-order Cumulants with Unfolding Approach
• Efficiency corrections for mutually inclusive variables and particle identification effect for mixed-cumulants in heavy-ion collisions