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Strange nuclear matter within Brueckner-Hartree-Fock theory

Authors: I. Vidaña, A. Polls, A. Ramos, M. Hjorth-Jensen & V. G. J. Stoks

Ref.: Phys. Rev. C 61, 025802 (2000)

Abstract: We have developed a formalism for microscopic Brueckner-type calculations of dense nuclear matter that includes all types of baryon-baryon interactions and allows us to treat any asymmetry in the fractions of the different species (n, p, Λ, Σ−, Σ0, Σ+, Ξ−, and Ξ0). We present results for the different single-particle potentials, focusing on situations that can be relevant in future microscopic studies of beta-stable neutron star matter with strangeness. We find that both the hyperon-nucleon and hyperon-hyperon interactions play a non-negligible role in determining the chemical potentials of the different species.

DOI: 10.1103/PhysRevC.61.025802