Reconstructing particle number distributions with convoluting volume fluctuations

摘要

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 (S_(NN))~(1/2) = 7.7 GeV as a signature of first-order phase transition and critical point of hadronic matter (Bzdak et al., 2018; Bzdak and Koch, 2019).