Impact of baryon resonances on the chiral phase transition at finite temperature and density
- We study the phase diagram of a generalized chiral SU(3)-flavor model in mean-field approxi- mation. In particular, the influence of the baryon resonances, and their couplings to the scalar and vector fields, on the characteristics of the chiral phase transition as a function of temperature and baryon-chemical potential is investigated. Present and future finite-density lattice calculations might constrain the couplings of the fields to the baryons. The results are compared to recent lattice QCD calculations and it is shown that it is non-trivial to obtain, simultaneously, stable cold nuclear matter.
| Verfasserangaben: | Detlef ZschiescheGND, Gebhard ZeebGND, Stefan SchrammGND, Horst StöckerORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30-20611 |
| ArXiv-Id: | http://arxiv.org/abs/nucl-th/0407117 |
| Dokumentart: | Preprint |
| Sprache: | Englisch |
| Datum der Veröffentlichung (online): | 09.11.2005 |
| Jahr der Erstveröffentlichung: | 2004 |
| Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Datum der Freischaltung: | 09.11.2005 |
| Freies Schlagwort / Tag: | chiral; stabile kalte Kerne QCD; chiral; stable cold nuclear matter |
| Quelle: | J.Phys.G31:935-946,2005, http://www.arxiv.org/abs/nucl-th/0407117 |
| HeBIS-PPN: | 190333162 |
| Institute: | Physik / Physik |
| Wissenschaftliche Zentren und koordinierte Programme / Frankfurt Institute for Advanced Studies (FIAS) | |
| DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Lizenz (Deutsch): |  Deutsches Urheberrecht |
