Modified Excluded Volume Hadron Resonance Gas Model with Lorentz Contraction

TL;DR

This paper introduces a modified excluded volume hadron resonance gas model incorporating Lorentz contraction, which improves agreement with lattice QCD data for thermodynamic quantities.

Contribution

The study presents a novel modification of the hadron resonance gas model by including Lorentz contraction effects on excluded volumes, enhancing its predictive accuracy.

Findings

Lorentz contraction improves model-data agreement

Modified model reproduces lattice QCD results effectively

Enhanced understanding of hadron interactions at high temperatures

Abstract

In this work we discuss a modified version of Excluded Volume Hadron Resonance Gas model and also study the effect of Lorentz contraction of the excluded volume on scaled pressure and susceptibilities of conserved charges. We find that the Lorentz contraction, coupled with the variety of excluded volume parameters reproduce the lattice QCD data quite satisfactorily.