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<p>We show that coupling the SU(2)-valued Skyrme field to the <i>ρ</i>-meson solves the long-standing issue of (in)compressibility in the solitonic Skyrme model. Even by including only one <i>ρπ</i> interaction term, motivated by a holographic-like reduction of Yang-Mills action by Sutcliffe, reduces the compression modulus from <i>K</i><sub>0</sub> ≃ 1080 MeV, in the massive Skyrme model, to <i>K</i><sub>0</sub> ≃ 351 MeV.</p>

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Compressibility of dense nuclear matter in the ρ-meson variant of the Skyrme model

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年1月8日

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  • Miguel Huidobro,
  • Paul Leask,
  • Carlos Naya,
  • Andrzej Wereszczyński

摘要

We show that coupling the SU(2)-valued Skyrme field to the ρ-meson solves the long-standing issue of (in)compressibility in the solitonic Skyrme model. Even by including only one ρπ interaction term, motivated by a holographic-like reduction of Yang-Mills action by Sutcliffe, reduces the compression modulus from K0 ≃ 1080 MeV, in the massive Skyrme model, to K0 ≃ 351 MeV.