Are we close to the QGP? - Hadrochemical vs. microscopic analysis of particle production in ultrarelativistic heavy ion collisions
- Ratios of hadronic abundances are analyzed for pp and nucleus-nucleus collisions at sqrt(s)=20 GeV using the microscopic transport model UrQMD. Secondary interactions significantly change the primordial hadronic cocktail of the system. A comparison to data shows a strong dependence on rapidity. Without assuming thermal and chemical equilibrium, predicted hadron yields and ratios agree with many of the data, the few observed discrepancies are discussed.
Author: | Steffen A. BassORCiDGND, Mohamed Belkacem, Mathias Brandstetter, Marcus BleicherORCiDGND, Lars GerlandGND, Jens Konopka, Ludwig NeiseGND, Christian Spieles, Sven SoffORCiD, Henning WeberGND, Horst StöckerORCiDGND, Walter GreinerGND |
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URN: | urn:nbn:de:hebis:30-6864 |
ArXiv Id: | http://arxiv.org/abs/nucl-th/9711032 |
Document Type: | Preprint |
Language: | English |
Date of Publication (online): | 2005/04/13 |
Year of first Publication: | 1997 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2005/04/13 |
Note: | Preprint, später in: Phys.Rev.Lett. 81 (1998) 4092-4095 |
Source: | http://de.arxiv.org/abs/nucl-th/9711032 , Phys.Rev.Lett. 81 (1998) 4092-4095 |
HeBIS-PPN: | 12873521X |
Institutes: | Physik / Physik |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Licence (German): | Deutsches Urheberrecht |