Neutron star properties in a chiral SU(3) model
- We investigate various properties of neutron star matter within an e ective chiral SU(3)L × SU(3)R model. The predictions of this model are compared with a Walecka-type model. It is demonstrated that the importance of hy- peron degrees are strongly depending on the interaction used, even if the equation of state near saturation density is nearly the same in both models. While the Walecka-type model predicts a strange star core with strangeness fraction fS 4/3, the chiral model allows only for fS 1/3 and predicts that 0, + and 0 will not exist in star, in contrast to the Walecka-type model. PACS: 26.60+c, 21.65+f, 24.10Jv
| Verfasserangaben: | Matthias HanauskeGND, Detlef ZschiescheGND, Subrata Pal, Stefan SchrammGND, Horst StöckerORCiDGND, Walter GreinerGND |
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| URN: | urn:nbn:de:hebis:30-22468 |
| Dokumentart: | Preprint |
| Sprache: | Englisch |
| Datum der Veröffentlichung (online): | 24.11.2005 |
| Jahr der Erstveröffentlichung: | 1999 |
| Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Datum der Freischaltung: | 24.11.2005 |
| Freies Schlagwort / Tag: | Neutronenstern; SU (3) Modell SU(3) model; neutron star |
| HeBIS-PPN: | 185400515 |
| Institute: | Physik / Physik |
| DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Lizenz (Deutsch): |  Deutsches Urheberrecht |
