Chemical freeze-out parameters at RHIC from microscopic model calculations
- The relaxation of hot nuclear matter to an equilibrated state in the central zone of heavy-ion collisions at energies from AGS to RHIC is studied within the microscopic UrQMD model. It is found that the system reaches the (quasi)equilibrium stage for the period of 10-15 fm/c. Within this time the matter in the cell expands nearly isentropically with the entropy to baryon ratio S/A = 150 - 170. Thermodynamic characteristics of the system at AGS and at SPS energies at the endpoints of this stage are very close to the parameters of chemical and thermal freeze-out extracted from the thermal fit to experimental data. Predictions are made for the full RHIC energy square root s = 200$ AGeV. The formation of a resonance-rich state at RHIC energies is discussed.
| Verfasserangaben: | Larissa BravinaORCiDGND, Eugene E. ZabrodinORCiD, Steffen A. BassORCiDGND, Amand FäßlerGND, Christian FuchsGND, Mark I. GorensteinORCiDGND, Walter GreinerGND, Sven SoffORCiD, Horst StöckerORCiDGND, Henning WeberGND |
|---|---|
| URN: | urn:nbn:de:hebis:30-7114 |
| DOI: | https://doi.org/10.1016/S0375-9474(01)01385-9 |
| ISSN: | 0375-9474 |
| ISSN: | 1873-1554 |
| ArXiv-Id: | http://arxiv.org/abs/nucl-th/0104023v1 |
| Dokumentart: | Preprint |
| Sprache: | Englisch |
| Jahr der Fertigstellung: | 2001 |
| Datum der Erstveröffentlichung: | 06.04.2001 |
| Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Datum der Freischaltung: | 14.04.2005 |
| Seitenzahl: | 4 |
| Erste Seite: | 1 |
| Letzte Seite: | 4 |
| Bemerkung: | Später erschienen in: Nuclear physics. A, Nuclear and hadronic physics, 698.2002, Nr. 1-4, S. 383-386, doi:10.1016/S0375-9474(01)01385-9 |
| Quelle: | http://de.arxiv.org/abs/nucl-th/0104023 , Talk at the conference Quark Matter'2001, 4 pages, to appear in Nucl. Phys. A |
| HeBIS-PPN: | 128802073 |
| Institute: | Physik / Physik |
| DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Lizenz (Deutsch): |  Deutsches Urheberrecht |
