Role of direct mechanisms in large-angle production of. cap alpha. particles in interaction of fast hadrons with 1p-shell nuclei
A consistent theoretical approach is used to evaluate the contributions of the quasielastic-knockout and spectator mechanisms to invariant spectra of ..cap alpha.. particles emitted into large angles in proton, deuteron, and ..cap alpha..-particle interactions with 1p-shell nuclei at energies of several GeV/nucleon. The role of rescattering from the nucleons in the knocked-out fragment, the residual nucleus, and the incident particle is investigated. It is shown that for the quasielastic-knockout mechanism one can obtain a good description of the experimental spectra of fragments emitted into angles of about 90/sup 0/ with 20--60 MeV energies. At larger energies of the particle detected, the contribution of the mechanism is smaller but still appreciable (up to 10%) up to energies of the order 180 MeV.
- Research Organization:
- Nuclear Physics Institute, Moscow State University
- OSTI ID:
- 5366212
- Journal Information:
- Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Vol. 41:1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALPHA REACTIONS
KNOCK-OUT REACTIONS
QUASI-ELASTIC SCATTERING
DEUTERON REACTIONS
PROTON REACTIONS
ALPHA PARTICLES
ALPHA SPECTRA
GEV RANGE 01-10
RESCATTERING
BARYON REACTIONS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
DIRECT REACTIONS
ENERGY RANGE
GEV RANGE
HADRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
QUASI-FREE REACTIONS
SCATTERING
SPECTRA
653003* - Nuclear Theory- Nuclear Reactions & Scattering