Symmetry energy of nuclear matter and properties of neutron statrs in a relativistic approach
| dc.creator | Lee, C. -H. | |
| dc.creator | Kuo, T. T. S. | |
| dc.creator | Li, G. Q. | |
| dc.creator | Brown, G. E. | |
| dc.date | 1997-03-16 | |
| dc.date.accessioned | 2026-07-07T05:41:57Z | |
| dc.date.available | 2026-07-07T05:41:57Z | |
| dc.description | Asymmetric nuclear matter is treated in the formalism of Dirac-Brueckner approach with Bonn one-boson-exchange nucleon-nucleon interaction. We extract the symmetry energy coefficient at the saturation to be about 31 MeV, which is in good agreement with empirical value of $30\pm 4$ MeV. The symmetry energy is found to increase almost linearly with the density, which differs considerably from the results of non-relativistic approaches. This finding also supports the linear parameterization of Prakash, Ainsworth and Lattimer. We find, furthermore, that the higher-order dependence of the nuclear equation of state on the asymmetry parameter is unimportant up to densities relevant for neutron stars. The resulting equation of state of neutron-rich matter is used to calculate the maximum mass of neutron star, and we find it to be about 2.1$M_\odot$. Possible mechanisms for the softening of the equation of state are also discussed. | |
| dc.description | LaTex, including 8 postscript figures. | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9703034 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9703034 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/82760 | |
| dc.subject | Nuclear Theory | |
| dc.title | Symmetry energy of nuclear matter and properties of neutron statrs in a relativistic approach | |
| dc.type | text |