Eur. Phys. J. A (2017) 53: 197
https://doi.org/10.1140/epja/i2017-12397-y

Regular Article - Theoretical Physics

Description of charged particle pseudorapidity distributions in Pb+Pb collisions with Tsallis thermodynamics

¹ School of Information Engineering, Hangzhou Dianzi University, 310018, Hangzhou, China
² Laboratori Nazionali del Sud, INFN, I-95123, Catania, Italy
³ College of Physical Science and Technology, Sichuan University, 610064, Chengdu, China
⁴ Cyclotron Institute, Texas A&M University, 77843, College Station, Texas, USA

^* e-mail: zheng@lns.infn.it

Received: 25 July 2017
Accepted: 24 September 2017
Published online: 16 October 2017

Abstract

The centrality dependence of pseudorapidity distributions for charged particles produced in Au+Au collisions at GeV and 200 GeV at RHIC, and in Pb+Pb collisions at TeV at LHC are investigated in the fireball model, assuming that the rapidity axis is populated with fireballs following one distribution function. We assume that the particles in the fireball fulfill the Tsallis distribution. The theoretical results are compared with the experimental measurements and a good agreement is found. Using these results, the pseudorapidity distributions of charged particles produced in Pb+Pb central collisions at TeV and 10 TeV are predicted.