Antiproton Production in Ni+ni Collisions at 1.85 Gev/nucleon
Loading...
Date
1994
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Abstract
Antiproton production in Ni+Ni collisions at 1.85 GeV/nucleon is studied in the relativistic Vlasov-Uehling-Uhlenbeck model. The self-energies of the antiproton are determined from the nucleon self-energies by the G-parity transformation. Also, the final-state interactions of the antiproton including both rescattering and annihilation are explicitly treated. With a soft nuclear equation of state, the calculated antiproton momentum spectrum is in good agreement with recent experimental data from the heavy-ion synchrotron at Gesellschaft, fur Schwerionenforschung Darmstadt. The effect due to the reduced nucleon and antinucleon masses in a medium is found to be more appreciable than in earlier Bevalac experiments with lighter systems and at higher energies.
Description
Journals published by the American Physical Society can be found at http://publish.aps.org/
Keywords
NUCLEUS-NUCLEUS COLLISIONS, HEAVY-ION COLLISIONS, UEHLING-UHLENBECK, MODEL, SUBTHRESHOLD ANTIPROTON, P-NUCLEUS, ENERGY, EQUATION, Physics
Citation
G. Q. Li and Che Ming Ko. Phys.Rev.C 50 1725-1728 1994. "Copyright (1994) by the American Physical Society."