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arXiv · 1107.5529

A hybrid-chiral soliton model with broken scale invariance for nuclear matter

Alessandro Drago·Valentina Mantovani Sarti
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Abstract

We present a model for describing nuclear matter at finite density based on quarks interacting with chiral fields, sigma and pion. The chiral Lagrangian also includes a logarithmic potential, associated with the breaking of scale invariance. We provide results for the soliton in vacuum and at finite density, using the Wigner-Seitz approximation. We show that the model can reach higher densities respect to the Linear-sigma model, up to approximately 3 rho_0 for m_sigma=1200 MeV.

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Alessandro Drago, Valentina Mantovani Sarti. 2011-07-27. A hybrid-chiral soliton model with broken scale invariance for nuclear matter. https://doi.org/10.1088/1742-6596/336/1/012028

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