Hyperon-hyperon interactions with the Nijmegen ESC08 model

Maximum mass of hyperon stars with the Nijmegen ESC08 model

Hypernuclear structure with the new Nijmegen potentials

We perform continuous-choice Brueckner-Hartree-Fock calculations of hypernuclear matter, using the recent Nijmegen potentials for hyperon-nucleon and hyperon-hyperon interactions. Single-particle observables of the various hyperons in bulk matter, as well as properties of singleand double-lambda hypernuclei, employing an extended Skyrme-Hartree-Fock scheme, are presented. We find that the poten...

M ay 1 99 8 Hyperon properties in finite nuclei using realistic Y N interactions

Single-particle energies of Λ and Σ hyperons in several nuclei are obtained from the relevant self–energies. The latter are constructed within the framework of a perturbative many-body approach employing present realistic hyperon-nucleon interactions such as the models of the Jülich and Nijmegen groups. The effects of the non-locality and energy-dependence of the self– energy on the bound state...

Hyperon-hyperon interactions and properties of neutron star matter

We present results from Brueckner-Hartree-Fock calculations for b-stable neutron star matter with nucleonic and hyperonic degrees of freedom, employing the most recent parametrizations of the baryon-baryon interaction of the Nijmegen group. It is found that the only strange baryons emerging in b-stable matter up to total baryonic densities of 1.2 fm are S and L . The corresponding equations of ...

X iv : h ep - p h / 05 06 05 9 v 1 6 J un 2 00 5 The influence of strength of hyperon - hyperon interactions on neutron star properties

The influence of strength of hyperon-hyperon interactions on neutron star properties. Abstract. An equation of state of neutron star matter with strange baryons has been obtained. The effects of the strength of hyperon-hyperon interactions on the equations of state constructed for the chosen parameter sets have been analyzed. Numerous neutron star models show that the appearance of hyperons is ...