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.
| Author: | Jörg Brachmann, Adrian Dumitru, Joachim A. Maruhn, Horst Stöcker, Walter Greiner, Dirk-Hermann Rischke |
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| URN: | urn:nbn:de:hebis:30-23900 |
| Document Type: | Preprint |
| Language: | English |
| Date of Publication (online): | 17.01.2006 |
| Year of first Publication: | 1997 |
| Publishing Institution: | Univ.-Bibliothek Frankfurt am Main |
| Tag: | Kollisionen schwerer Ionen ; Zustandsgleichung ; hydrodynamisches Modell equation of state ; heavy ion colliders ; hydrodynamical model |
| Source: | Report-no: UFTP-435/1997, Duke-TH-97-140, Nucl.Phys.A619:391-412,1997. [nucl-th/9703032] |
| HeBIS PPN: | 185287034 |
| Institutes: | Physik |
| Dewey Decimal Classification: | 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Veröffentlichungsvertrag für Publikationen ohne Print on Demand |
