For infinitely extended solitons the translation zero mode can be given a normalizable wave function, and the resulting Stokes scattering probability for exciting a string's translation mode is computed.
Compressibility of dense nuclear matter in the $\rho$-meson variant of the Skyrme model
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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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An Extended Soliton's Zero Modes
For infinitely extended solitons the translation zero mode can be given a normalizable wave function, and the resulting Stokes scattering probability for exciting a string's translation mode is computed.