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Chiral symmetry restoration in strange hadronic matter

P. Wang, V. E. Lyubovitskij, Th. Gutsche, Amand Faessler

nucl-tharXiv:nucl-th/0311074

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 ρc, 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 fs is obtained.

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