Anti-proton production and annihilation in nuclear collisions at 15-A/GeV
We present a calculation of antiproton yields in Si+Al and Si+Au collisions at 14.5A GeV in the framework of the relativistic quantum molecular dynamics approach (RQMD). Multistep processes lead to the formation of high-mass flux tubes. Their decay dominates the initial antibaryon yield. However, the subsequent annihilation in the surrounding baryon-rich matter suppresses the antiproton yield considerably: Two-thirds of all antibaryons are annihilated even for the light Si+Al system. Comparisons with preliminary data of the E802 experiment support this analysis.
| Author: | André Jahns, Horst Stöcker, Walter Greiner, Heinz Sorge |
|---|---|
| URN: | urn:nbn:de:hebis:30-27093 |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 26.05.2006 |
| Year of first Publication: | 1992 |
| Publishing Institution: | Univ.-Bibliothek Frankfurt am Main |
| Source: | Phys. Rev. Lett. 68, 2895-2897 (1992) , ©1992 The American Physical Society, http://link.aps.org/abstract/PRL/v68/p2895 |
| HeBIS PPN: | 190093129 |
| Institutes: | Physik |
| Dewey Decimal Classification: | 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Veröffentlichungsvertrag für Publikationen ohne Print on Demand |
