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Chiral symmetry restoration in strange hadronic matter

P. Wang·V. E. Lyubovitskij·Th. Gutsche·Amand Faessler
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Abstract

The phase transition of chiral symmetry restoration in strange hadronic matter is studied in the chiral SU(3) quark mean field model. When the baryon density is larger than a critical density $ρ_c$, the minimal energy density of the system occurs at the point where the effective masses of nucleon, $Λ$ or $Ξ$ drop to zero. The physical quantities change discontinuously at this density and the system will be in the phase of chiral symmetry restoration. A rich phase structure of strange hadronic matter with different strangeness fraction $f_s$ is obtained.

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P. Wang, V. E. Lyubovitskij, Th. Gutsche, Amand Faessler. 2004-07-16. Chiral symmetry restoration in strange hadronic matter. https://doi.org/10.1103/physrevc.70.015202

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