Second to tenth order susceptibilities of conserved charges within a modified Nambu-Jona-Lasinio model

论文摘要

We discuss the sign and energy dependence of second to tenth order susceptibilities of the baryon number,charge number, and strangeness for the analysis of critical conditions in heavy ion collisions in the LHC and RHIC by applying a modified Nambu-Jona-Lasinio model. This model is fitted to the quark condensate of the lattice QCD result at finite temperature and zero baryon chemical potential. The presence of a critical point made these susceptibilities deviate considerably from a Hadron-Resonance-Gas model that shows no criticality. The sign, magnitude, and energy dependence of these higher order fluctuations hint towards the existence and location of a critical point that could be discovered in future heavy ion collision experiments.

论文目录

文章来源

类型: 期刊论文

作者: 范文凯,罗晓峰,宗红石

来源: Chinese Physics C 2019年05期

年度: 2019

分类: 基础科学

专业: 物理学

单位: Kuang Yaming Honors School, Nanjing University,Key Laboratory of Quark &Lepton Physics (MOE) and Institute of Particle Physics, Central China Normal University,Department of Physics, Nanjing University

基金: Supported in part by the MoST of China 973-Project(2015CB856901),the National Natural Science Foundation of China(11475085,11535005,11690030,11575069,11221504,11890711,11861131009),the Fundamental Research Funds for the Central Universities(020414380074,CCNU19QN054)

分类号: O572.243

页码: 103-110

总页数: 8

文件大小: 3275K

下载量: 3

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