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 |
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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 |