K/pi ratios in relativistic nuclear collisions : a signature for the quark-gluon plasma?
Collisions of Si(14.5A GeV+Au are investigated in the relativistic-quantum-molecular-dynamics approach. The calculated pseudorapidity distributions for central collisions compare well with recent experimental data, indicating a large degree of nuclear stopping and thermalization. Nevertheless, nonequilibrium effects play an important role in such complex multihadron reactions: They lead to a strong enhancement of the total kaon production cross sections, in good agreement with the experimental data, without requiring the formation of a deconfined quark-gluon plasma.
| Author: | R. Mattiello, Heinz Sorge, Horst Stöcker, Walter Greiner |
|---|---|
| URN: | urn:nbn:de:hebis:30-28219 |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 20.06.2006 |
| Year of first Publication: | 1989 |
| Publishing Institution: | Univ.-Bibliothek Frankfurt am Main |
| Source: | Phys. Rev. Lett. 63, 1459-1462 (1989), ©1989 The American Physical Society, http://link.aps.org/abstract/PRL/v63/p1459 |
| HeBIS PPN: | 188705147 |
| Institutes: | Physik |
| Dewey Decimal Classification: | 530 Physik |
| PACS-Classification: | 12.38.Mh Quark-gluon plasma (see also 25.75.Nq Quark deconfinement, quark-gluon plasma production and phase transitions in relativistic heavy ion collisions; see also 21.65.Qr Quark matter) |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Veröffentlichungsvertrag für Publikationen ohne Print on Demand |
