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/sup 4/He(p,2p)/sup 3/H reaction at intermediate energies

Journal Article · · Phys. Rev. C; (United States)
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The /sup 4/He(p,2p)/sup 3/He reaction has been studied at 250, 350, and 500 MeV using coplanar symmetric and asymmetric geometries. The data are presented as energy-sharing spectra, coplanar symmetric angular distributions, and quasifree angular distributions. A comparison with distorted-wave impulse approximation calculations indicates reasonable agreement for small recoil momenta (q< or approx. =150 MeV/c). For larger recoil momenta, the distorted-wave impulse approximation calculations increasingly underestimate the data. The discrepancies are substantially reduced by inclusion of a spin-orbit term in the optical potential used to generate the distorted waves. Improvements of the single particle wave function for the struck nucleon influence the calculations to a lesser degree. The remaining discrepancies at large recoil momenta may, in part be ascribed to multiple scattering effects and exchange processes not included in the standard distorted-wave impulse approximation.

Research Organization:
Department of Physics, University of Manitoba, Winnipeg, Manitoba R3T 2N2, Canada
OSTI ID:
5755202
Journal Information:
Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 25:1; ISSN PRVCA
Country of Publication:
United States
Language:
English

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Related Subjects

651225* -- Nuclear Properties &amp; Reactions
A=1-5
Experimental-- Nuclear Reactions &amp; Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BARYON REACTIONS
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DIRECT REACTIONS
DISTORTED WAVE THEORY
DISTRIBUTION
ENERGY RANGE
HADRON REACTIONS
HELIUM 4 TARGET
IMPULSE APPROXIMATION
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUCLEON REACTIONS
OPTICAL MODELS
PROTON REACTIONS
QUASI-ELASTIC SCATTERING
QUASI-FREE REACTIONS
SCATTERING
TARGETS
TRITONS