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Symmetry Breaking and Collisions with $σ$-Mesons

F. M. C. Witte
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Abstract

In this brief report we adress spontaneous symmetry breaking in a finite-temperature scalar meson plasma. We calculate the in-medium averaged thermal $σ-σ$ scattering crossection and the related shear viscosity $η(T)$ and mean-free-path $L(T)$. Our results suggest that slightly below the critical temperature there is a 30 percent peak in the crossection leading to equivalent dips in $η(T)$ and $L(T)$. We discuss the relevance of this observation.

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F. M. C. Witte. 1996-02-29. Symmetry Breaking and Collisions with $σ$-Mesons. https://arxiv.org/abs/hep-ph/9602427

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