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 StöckerORCiDGND, Walter GreinerGND, Heinz Sorge |
|---|---|
| URN: | urn:nbn:de:hebis:30-27093 |
| Parent Title (German): | Physical review letters |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2006/05/26 |
| Year of first Publication: | 1992 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2006/05/26 |
| Volume: | 68 |
| Issue: | 19 |
| Page Number: | 3 |
| First Page: | 2895 |
| Last Page: | 2897 |
| HeBIS-PPN: | 190093129 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Licence (German): |  Deutsches Urheberrecht |
