Appearance of hyperons in neutron stars
By employing a recently constructed hyperon-nucleon potential the equation of state of {beta}-equilibrated and charge neutral nucleonic matter is calculated. The hyperon-nucleon potential is a low-momentum potential which is obtained within a renormalization group framework. Based on the Hartree-Foc...
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| Veröffentlicht in: | Physical review. C, Nuclear physics Nuclear physics, 2010-03, Vol.81 (3), Article 035803 |
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| container_title | Physical review. C, Nuclear physics |
| container_volume | 81 |
| creator | Ðapo, H. Schaefer, B.-J. Wambach, J. |
| description | By employing a recently constructed hyperon-nucleon potential the equation of state of {beta}-equilibrated and charge neutral nucleonic matter is calculated. The hyperon-nucleon potential is a low-momentum potential which is obtained within a renormalization group framework. Based on the Hartree-Fock approximation at zero temperature the densities at which hyperons appear in neutron stars are estimated. For several different bare hyperon-nucleon potentials and a wide range of nuclear matter parameters it is found that hyperons in neutron stars are always present. These findings have profound consequences for the mass and radius of neutron stars. |
| doi_str_mv | 10.1103/PhysRevC.81.035803 |
| format | Article |
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| identifier | ISSN: 0556-2813 |
| ispartof | Physical review. C, Nuclear physics, 2010-03, Vol.81 (3), Article 035803 |
| issn | 0556-2813 1089-490X |
| language | eng |
| recordid | cdi_osti_scitechconnect_21386720 |
| source | American Physical Society Journals |
| subjects | APPROXIMATIONS BARYONS CALCULATION METHODS DENSITY ELEMENTARY PARTICLES EQUATIONS EQUATIONS OF STATE FERMIONS HADRONS HARTREE-FOCK METHOD HYPERONS MASS MATTER NEUTRON STARS NUCLEAR MATTER NUCLEAR PHYSICS AND RADIATION PHYSICS NUCLEONS PHYSICAL PROPERTIES POTENTIALS RENORMALIZATION STARS STRANGE PARTICLES TEMPERATURE ZERO K |
| title | Appearance of hyperons in neutron stars |
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