Specific heat and its high-order moments in relativistic heavy-ion collisions from a multiphase transport model

Ru-Xin Cao (曹汝鑫), Song Zhang (张松), and Yu-Gang Ma (马余刚)
Phys. Rev. C 106, 014910 – Published 28 July 2022

Abstract

Energy dependence of specific heat extracted from temperature fluctuation of Au + Au collisions at sNN = 7.7 to 200 GeV was investigated by using a multiphase transport (AMPT) model. The results were compared with those from other models and some differences at low sNN were found. To explain the above differences and describe the properties of the hot dense matter at low sNN, a new quantity Cv* was derived for describing specific heat in heavy-ion collisions. It was found that, by using Cv* together with its high-order moments (skewness and kurtosis), thermal properties of the hot dense matter can be described and different thermal properties with or without parton process can be clearly distinguished. The proposed observable provides a way to learn the property of QCD matter in heavy-ion collisions.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
1 More
  • Received 4 February 2022
  • Accepted 8 July 2022

DOI:https://doi.org/10.1103/PhysRevC.106.014910

©2022 American Physical Society

Physics Subject Headings (PhySH)

Nuclear Physics

Authors & Affiliations

Ru-Xin Cao (曹汝鑫)1,2,3, Song Zhang (张松)2,4,*, and Yu-Gang Ma (马余刚)2,4,†

  • 1Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2Key Laboratory of Nuclear Physics and Ion-Beam Application (MOE), Institute of Modern Physics, Fudan University, Shanghai 200433, China
  • 3School of Nuclear Sciences and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
  • 4Shanghai Research Center for Theoretical Nuclear Physics, NSFC and Fudan University, Shanghai 200438, China

  • *song_zhang@fudan.edu.cn
  • mayugang@fudan.edu.cn

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 106, Iss. 1 — July 2022

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×