Hyperons in neutron stars
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 sta...
Main Authors: | , |
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Format: | Article |
Language: | English |
Published: |
Elsevier
2015-07-01
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Series: | Physics Letters B |
Subjects: | |
Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269315002026 |
Summary: | 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 2.08M⊙, which is consistent with the recently observed, massive neutron stars. We discuss a universal, repulsive three-body force for hyperons in matter. |
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ISSN: | 0370-2693 1873-2445 |