Pseudo-rapidity distributions of charged particles in asymmetric collisions using Tsallis thermodynamics

被引：0

作者：

Tao, Jun-Qi ^{[1
,2
]}

He, Hong-Bin ^{[3
]}

Zheng, Hua ^{[3
]}

Zhang, Wen-Chao ^{[3
]}

Liu, Xing-Quan ^{[4
]}

Zhu, Li-Lin ^{[5
]}

Bonasera, Aldo ^{[6
,7
]}

机构：

[1] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China

[2] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China

[3] Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Peoples R China

[4] Sichuan Univ, Inst Nucl Sci & Technol, Chengdu 610064, Peoples R China

[5] Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China

[6] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA

[7] INFN, Lab Nazl Sud, I-95123 Catania, Italy

来源：

NUCLEAR SCIENCE AND TECHNIQUES | 2023年 / 34卷 / 11期

基金：

美国能源部; 中国国家自然科学基金;

关键词：

Tsallis thermodynamics; Fireball model; Pseudo-rapidity distribution; Heavy-ion collisions; Charged particles; PROTON-PROTON COLLISIONS; PB-PB COLLISIONS; PSEUDORAPIDITY DISTRIBUTIONS; MULTIPLICITY DISTRIBUTIONS; CENTRALITY DEPENDENCE; DENSITY; PP;

D O I：

10.1007/s41365-023-01334-9

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The pseudo-rapidity distributions of the charged particles produced in the asymmetric collision systems p+Al, p+Au and (3) He+Au at root s(NN) = 200 GeV are evaluated in the framework of a fireball model with Tsallis thermodynamics. The fireball model assumes that the experimentally measured particles are produced by fireballs following the Tsallis distribution and it can effectively describe the experimental data. Our results as well as previous results for d+Au collisions at root s(NN) = 200 GeV and p+Pb collisions at root s(NN) = 5.02 TeV validate that the fireball model based on Tsallis thermodynamics can provide a universal framework for pseudo-rapidity distribution of the charged particles produced in asymmetric collision systems. We predict the centrality dependence of the total charged particle multiplicity in the p+Al, p+Au and He-3+Au collisions. Additionally, the dependences of the fireball model parameters ( y(0a), y(0A), sigma(a) and sigma(A)) on the centrality and system size are studied.

引用

页数：8

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