Poisson baseline of net-charge fluctuations in relativistic heavy ion collisions

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成果类型：

期刊论文

作者：

Pan, Xue*;Lin, Yu-Fu;Chen, Li-Zhu;Xu, Ming-Mei;Wu, Yuan-Fang

通讯作者：

Pan, Xue

作者机构：

[Pan, Xue] Chengdu Technol Univ, Sch Elect Engn, Chengdu 611730, Sichuan, Peoples R China.

[Lin, Yu-Fu; Wu, Yuan-Fang; Xu, Ming-Mei] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Hubei, Peoples R China.

[Lin, Yu-Fu; Wu, Yuan-Fang; Xu, Ming-Mei] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China.

[Chen, Li-Zhu] Nanjing Univ Informat Sci & Technol, Sch Phys & Optoelect Engn, Nanjing 210044, Jiangsu, Peoples R China.

通讯机构：

[Pan, Xue] C

Chengdu Technol Univ, Sch Elect Engn, Chengdu 611730, Sichuan, Peoples R China.

语种：

英文

关键词：

net-charge fluctuations;Poisson baseline;High-order cumulants

关键词(中文)：

重离子碰撞;费用;基线;相对论;松;体积变化;粒子;否定

期刊：

中国物理C

ISSN：

1674-1137

年：

2018

卷：

期：

页码：

074104

DOI：

10.1088/1674-1137/42/7/074104

基金类别：

Fund Project of National Natural Science Foundation of China [11647093, 11405088, 11521064]; Fund Project of Chengdu Technological University [2016RC004]; Major State Basic Research Development Program of ChinaNational Basic Research Program of China [2014CB845402]; Ministry of Science and Technology (MoST)Ministry of Science and Technology, China [2016YFE0104800]

机构署名：

本校为其他机构

院系归属：

物理科学与技术学院

摘要：

Taking doubly charged particles, positive-negative charge pair production and the effects of volume fluctuations into account, the Poisson baseline of the fluctuations of net-charge is studied. Within the Poisson baseline, the cumulants of net-charge are derived. Comparing to the Skellam baseline of net-charge, we infer that doubly charged particles broaden the distributions of net-charge, while positive-negative charge pairs narrow the distributions. Using the ratios of doubly charged particles and positive-negative charge pairs from neutral r...

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Poisson baseline of net-charge fluctuations in relativistic heavy ion collisions

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