"Pressure equilibration" in ultrarelativistic heavy ion collisions
- We study the time scale for pressure equilibration in heavy ion collisions at AGS energies within the three-fluid hydrodynamical model and a microscopic cascade model (UrQMD). We find that kinetic equilibrium is reached in both models after a time of 5 fm/c (center-of-mass time). Thus, observables which are sensitive to the early stage of the reaction differ considerably from the expectations within the instant thermalization scenario (one-fluid hydrodynamical model).
| Author: | Jörg BrachmannGND, Adrian Bogdan DumitruGND, Christian Spieles, Joachim MaruhnORCiDGND, Horst StöckerORCiDGND, Walter GreinerGND |
|---|---|
| URN: | urn:nbn:de:hebis:30-23955 |
| ISSN: | 0174-0814 |
| ArXiv Id: | http://arxiv.org/abs/nucl-th/9701045 |
| Document Type: | Preprint |
| Language: | English |
| Year of Completion: | 1997 |
| Year of first Publication: | 1997 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2006/01/19 |
| Tag: | Kollisionen schwerer Ionen; Quark-Gluon-Plasma; Zustandsgleichungen equation of state; heavy ion collisions; quark-gluon plasma |
| Page Number: | 3 |
| First Page: | 1 |
| Last Page: | 3 |
| Note: | Erschienen in: Scientific Report, 1996, S. 86 |
| HeBIS-PPN: | 185307795 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Licence (German): |  Deutsches Urheberrecht |
