Reconstructing particle number distributions with convoluting volume fluctuations

作者：Esumi, ShinIchi; Nakagawa, Kana; Nonaka, Toshihiro^*

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2021, 987: 164802.

DOI：10.1016/j.nima.2020.164802

• MULTIPLICITY DISTRIBUTIONS
• MOMENTS

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. Ou r study suggests such a tool could investigate the possible bimodal structure of net-proton distribution in Au+Au collisions at root s(N N) = 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).