HERNANDEZ, E and OSET, E and WEISE, W (1995) MULTINUCLEON MECHANISM FOR SUBTHRESHOLD ANTIPROTON PRODUCTION IN PROTON-NUCLEUS REACTIONS. ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 351 (1). pp. 99-106. ISSN 0939-7922,
Full text not available from this repository.Abstract
We study a many-body (multipion) mechanism for pBar subthreshold production in proton-nucleus collisions. The incoming proton and the interacting nucleons in the target act as sources of pions that merge to produce a nucleon-antiproton pair. The calculation takes fully into account the initial state interaction and antiproton absorption in the final state. The cooperation of several nucleons in the initial states reduces the threshold for the reaction allowing for production rates that may account for 15-50% of the total pBAR production. We point out that this contribution should be added to the primary pBAR production mechanism due to DELTA formation and rescattering, as found by other groups, and should be taken into account when trying to extract information about pBAR properties in the nuclear medium.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HEAVY-ION COLLISIONS; LOW-ENERGY ANTIPROTONS; PION-PRODUCTION; CROSS-SECTIONS; P-NUCLEUS; ANNIHILATION; SCATTERING; CARBON; MOMENTUM; MODEL; |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:38 |
| URI: | https://pred.uni-regensburg.de/id/eprint/52785 |
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