Nonequilibrium fluid-dynamics in the early stage of ultrarelativistic heavy-ion collisions
- To describe ultrarelativistic heavy-ion collisions we construct a three-fluid hydrodynamical model. In contrast to one-fluid hydrodynamics, it accounts for the finite stopping power of nuclear matter, i.e. for nonequilibrium e ects in the early stage of the reaction. Within this model, we study baryon dynamics in the BNL-AGS energy range. For the system Au+Au we find that kinetic equilibrium between projectile and target nucleons is established only after a time teq CM H 5 fm/c C 2RAu/³CM. Observables which are sensitive to the early stage of the collision (like e.g. nucleon flow) therefore di er considerably from those calculated in the one-fluid model.
| Verfasserangaben: | Jörg BrachmannGND, Adrian Bogdan DumitruORCiDGND, Joachim MaruhnORCiDGND, Horst StöckerORCiDGND, Walter GreinerGND, Dirk-Hermann RischkeORCiDGND |
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| URN: | urn:nbn:de:hebis:30-23900 |
| Dokumentart: | Preprint |
| Sprache: | Englisch |
| Datum der Veröffentlichung (online): | 17.01.2006 |
| Jahr der Erstveröffentlichung: | 1997 |
| Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Datum der Freischaltung: | 17.01.2006 |
| Freies Schlagwort / Tag: | Kollisionen schwerer Ionen; Zustandsgleichung; hydrodynamisches Modell equation of state; heavy ion colliders; hydrodynamical model |
| Quelle: | Report-no: UFTP-435/1997, Duke-TH-97-140, Nucl.Phys.A619:391-412,1997. [nucl-th/9703032] |
| HeBIS-PPN: | 185287034 |
| Institute: | Physik / Physik |
| DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Lizenz (Deutsch): |  Deutsches Urheberrecht |
