Single-nucleon transfer to unbound states by means of the {sup 4}He({alpha},{sup 3}He){sup 5}He reaction at 158 and 200 MeV
- National Accelerator Centre, Faure, 7131 (South Africa)
- Department of Physics, University of Stellenbosch, Stellenbosch, 7600 (South Africa)
- Department of Physics, University of the Western Cape, Bellville, 7535 (South Africa)
The {sup 4}He({alpha},{sup 3}He){sup 5}He(g.s.)reaction was studied at incident laboratory energies of 158 and 200 MeV for c.m. scattering angles ranging from {approximately}16{degree} to 100{degree}. The shape of the {sup 5}He(g.s.)peak in the measured {sup 3}He energy spectra is well reproduced by distorted-wave Born approximation calculations. Whereas calculations utilizing six-parameter optical potentials yield good qualitative agreement with the measured angular distributions, unacceptably poor agreement is found when nine-parameter potentials are utilized. Absolute normalization with {ital D}{sup 2}{sub 0} strengths extracted from corresponding zero-range and finite-range calculations overpredicts the measurements by factors of {approximately}2 to 3. {copyright} {ital 1996 The American Physical Society.}
- OSTI ID:
- 389434
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 54; ISSN PRVCAN; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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