Hot and Dense Hadron Gas (HG): A New Excluded-volume approach

TL;DR

This paper introduces a new thermodynamically consistent excluded-volume model for hot, dense hadron gas, calculating thermodynamic, transport, and rapidity spectra, and validating against experimental data.

Contribution

A novel excluded-volume approach for hadron gas that ensures thermodynamic consistency and accurately predicts thermodynamic, transport, and rapidity spectra.

Findings

Model matches experimental hadron ratios

Transport coefficients align with other models

Rapidity spectra are well reproduced

Abstract

We formulate a thermodynamically consistent equation of state (EOS), based on excluded-volume approach, for a hot, dense hadron gas (HG). We calculate various thermodynamical quantities of HG and various hadron ratios and compare our model results with the results of other excluded-volume models and experimental data. We also calculate various transport coefficients such as $\eta/s$ etc. and compare them with other HG model results. Furthermore, we test the validity of our model in getting the rapidity spectra of various hadrons and the effect of flow on them is investigated by matching our predictions with the experimental data.