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arXiv · 0811.1571

Transport Coefficients of Hadronic Matter near $T_c$

Jacquelyn Noronha-Hostler·Jorge Noronha·Carsten Greiner
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Abstract

A hadron resonance gas model including all known particles and resonances with masses $m<2$ GeV and an exponentially rising density of Hagedorn states for $m>2$ GeV is used to obtain an upper bound on the shear viscosity to entropy density ratio, $\eta/s\approx1/(4\pi)$, of hadronic matter near $T_c$. We found a large trace anomaly and small speed of sound near $T_c$, which agree well with recent lattice calculations. We comment on the bulk viscosity to entropy density ratio close to $T_c$.

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Jacquelyn Noronha-Hostler, Jorge Noronha, Carsten Greiner. 2008-11-10. Transport Coefficients of Hadronic Matter near $T_c$. https://doi.org/10.1103/physrevlett.103.172302

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