# Description of Charged Particle Pseudorapidity Distributions in Pb+Pb Collisions with Tsallis Thermodynamics

## TL;DR

This paper models charged particle pseudorapidity distributions in heavy-ion collisions using Tsallis thermodynamics within a fireball framework, successfully matching experimental data and predicting distributions at higher energies.

## Contribution

It introduces a fireball model with Tsallis distribution to describe pseudorapidity distributions across different collision energies and centralities, providing new predictive insights.

## Key findings

- Good agreement with RHIC and LHC experimental data
- Predictions for future Pb+Pb collision energies at 5.02 and 10 TeV
- Demonstrates the effectiveness of Tsallis thermodynamics in heavy-ion collision modeling

## Abstract

The centrality dependence of pseudorapidity distributions for charged particles produced in Au+Au collisions at $\sqrt{s_{NN}}=130$ GeV and 200 GeV at RHIC, and in Pb+Pb collisions at $\sqrt{s_{NN}}=2.76$ 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 $\sqrt{s_{NN}}=5.02$ TeV and 10 TeV are predicted.