Hyperons in neutron stars
Nuclear Theory
2015-01-23 v1 Solar and Stellar Astrophysics
High Energy Physics - Phenomenology
Abstract
Using the Dirac-Brueckner-Hartree-Fock approach, the properties of neutron-star matter including hyperons are investigated. In the calculation, we consider both time and space components of the vector self-energies of baryons as well as the scalar ones. Furthermore, the effect of negative-energy states of baryons is partly taken into account. We obtain the maximum neutron-star mass of , which is consistent with the recently observed, massive neutron stars. We discuss a universal, repulsive three-body force for hyperons in matter.
Keywords
Cite
@article{arxiv.1501.05419,
title = {Hyperons in neutron stars},
author = {Tetsuya Katayama and Koichi Saito},
journal= {arXiv preprint arXiv:1501.05419},
year = {2015}
}
Comments
13 pages, 3 figures, 2 tables. arXiv admin note: text overlap with arXiv:1410.7166