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-
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.
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Metadaten
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):2006/05/26
Year of first Publication:1992
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2006/05/26
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):License Logo Veröffentlichungsvertrag für Publikationen

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