Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8183784 | Nuclear Physics A | 2013 | 5 Pages |
Abstract
We construct two-meson exchange three-baryon potentials between two nucleons and one hyperon (NNY) consistent with the two body nucleon-hyperon (NY) J04 potential of the Jülich group. In particular, we focus on the NNÎ and NNΣâ forces since Î and Σâ are the first hyperons expected to appear in microscopic calculations of neutron star matter. Brueckner-Hartree-Fock calculations of the hyperonic matter are then performed including the effect of these three-body forces. Our results show that at high densities the total contribution of the NNY force is repulsive making the resulting equation of state stiffer, as required from neutron star mass observations.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
D. Logoteta, I. Vidaña, C. Providência,