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arXiv · 2405.20757

Compressibility of dense nuclear matter in the $\rho$-meson variant of the Skyrme model

Miguel Huidobro·Paul Leask·Carlos Naya·Andrzej Wereszczynski
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Abstract

We show that coupling the $\textrm{SU}(2)$-valued Skyrme field to the $\rho$-meson solves the long-standing issue of (in)compressibility in the solitonic Skyrme model. Even by including only one $\rho\pi$ interaction term, motivated by a holographic-like reduction of Yang-Mills action by Sutcliffe, reduces the compression modulus from $K_0 \simeq 1080$ MeV, in the massive Skyrme model, to $K_0\simeq 351$ MeV.

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Miguel Huidobro, Paul Leask, Carlos Naya, Andrzej Wereszczynski. 2024-05-31. Compressibility of dense nuclear matter in the $\rho$-meson variant of the Skyrme model. https://doi.org/10.1007/jhep01(2025)048

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