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arXiv · 1712.06287

In-medium thermal conductivity and diffusion coefficients of a hot hadronic gas mixture

Utsab Gangopadhyaya·Snigdha Ghosh·Sourav Sarkar
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Abstract

The relativistic kinetic theory approach has been employed to study four well-known transport coefficients that characterize heat flow and diffusion for the case of a hot mixture constituting of nucleons and pions. Medium effects on the cross-section for binary collisions ($N\pi$,$\pi\pi$) have been taken into consideration by incorporating self-energy corrections to modify the propagator of the exchanged $\Delta$ baryon in $N\pi$ interaction and the $\rho$ and $\sigma$ meson propagators for the case of $\pi\pi$ interaction. The temperature dependence of the four coefficients have been investigated for several values of the baryon chemical potential.

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Utsab Gangopadhyaya, Snigdha Ghosh, Sourav Sarkar. 2017-12-18. In-medium thermal conductivity and diffusion coefficients of a hot hadronic gas mixture. https://doi.org/10.1142/s0218301319500356

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