Strange nuclear matter within Brueckner-Hartree-Fock Theory

Details Strange nuclear matter within Brueckner-Hartree-Fock Theory Strange nuclear matter within Brueckner-Hartree-Fock Theory

1999-09-09

arxiv.org/abs/nucl-th/9909019v1

Phys.Rev. C61 (2000) 025802

Physics

Nuclear Physics

Nuclear Theory

36 pages, LateX, includes 8 PostScript figures, (submitted to PRC)

Scientific paper

10.1103/PhysRevC.61.025802

We have developed a formalism for microscopic Brueckner-type calculations of dense nuclear matter that includes all types of baryon-baryon interactions and allows to treat any asymmetry on the fractions of the different species (n, p, $\Lambda$, $\Sigma^0$, $\Sigma^+$, $\Sigma^-$, $\Xi^-$ and $\Xi^0$). We present results for the different single-particle potentials focussing on situations that can be relevant in future microscopic studies of beta-stable neutron star matter with strangeness. We find the both the hyperon-nucleon and hyperon-hyperon interactions play a non-negligible role in determining the chemical potentials of the different species.

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