Work

Bayesian method for quantifying the non-Gaussian fluctuations in low-intermediate energy heavy ion collisions

Year: 2025

Type: article

Abstract: In this work, we present a model-independent method to quantify the non-Gaussian fluctuations in the observable distributions, which are assessed by the difference between the measured observable distributions and reconstructed observable distributions via the Bayesian method. Our results indicate that the strength of non-Gaussian fluctuation increases with the beam energy, and is primarily driven by non-central collision mechanisms. The experimental measurement of the strength of non-Gaussian fluctuation of the observable distributions will provide valuable insights into understanding the nonequilibrium effects in heavy ion collisions and the liquid-gas phase transition in finite nuclei.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2025.139427

Authors: Xinyu Wang, Xiang Chen, Junping Yang, Ying Cui, Zhuxia Li, Kai Zhao, Yingxun Zhang

Institutions: China Institute of Atomic Energy, National Natural Science Foundation of China, Fudan University, Guangxi Normal University

Language: English

Topic: High-Energy Particle Collisions Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funder: National Natural Science Foundation of China

OpenAlex ID: W4408915715

FWCI: 0.945

Cites: 33

Cited by: 2

Related to: 10