Radiative capture mechanisms in the {sup 89}Y (p,{gamma}) reaction
Journal Article
·
· Bulletin of the American Physical Society
OSTI ID:391801
- Lawrence Livermore National Laboratory, CA (United States); and others
We have measured the spectra of gamma rays from approximately 14 MeV to the endpoint in the {sup 89}Y({tilde p},{gamma}) reaction with 19.6 MeV polarized protons from the TUNL tandem accelerator. Gamma spectra were measured with a pair of 25.4 cm x 25.4 cm anticoincidence shielded NaI detectors at angles of 30, 55, 90, 125, and 150{degrees} with respect to the incident beam. The gamma spectra show significant analyzing powers as well as forward peaking of the angular distributions. These features allow discrimination between compound processes which do not exhibit such effects of interference between different channels, and direct processes. The observed interference effects indicate that multistep-direct processes are important at energies lower than those for which direct-semidirect capture is the dominant mechanism.
- OSTI ID:
- 391801
- Report Number(s):
- CONF-931044--
- Journal Information:
- Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 9 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
- Country of Publication:
- United States
- Language:
- English
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