Equation of State and Transport Coefficients of Relativistic Nuclear Matter

TL;DR

This paper investigates the equation of state and transport coefficients of a pion gas, focusing on their dependence on mass-to-temperature ratio to understand the evolution of hot, dense nuclear matter.

Contribution

It provides a detailed analysis of the classical transport coefficients of a pion gas and their relation to relaxation times, enhancing understanding of nuclear matter dynamics.

Findings

Transport coefficients vary with mass-to-temperature ratio.

Bulk viscosity, shear viscosity, and thermal conductivity are characterized.

Insights into the evolution of hot, dense nuclear matter are gained.

Abstract

In order to evaluate qualitatively the space-time evolution of hot and dense nuclear matter the underlying equation of state and transport coefficients must be known. In this study a specific equation of state is studied: the pion gas. The classical or standard transport coefficients, namely the bulk viscosity, shear viscsoity and thermal conductivity are devided by the relaxation times for the corresponding dissipative fluxes and then studied as functions of mass to temperature ratio.