Spectroscopic factors from radiative capture reactions
Abstract
The non-resonant γ-ray yield in radiative capture reactions is known to arise from a direct-capture process. Previous studies of this process in several light nuclei have been mainly concerned with astrophysical aspects. The present work demonstrates that this process can be in addition a useful tool in nuclear spectroscopy. The process selects states in the final nucleus which have parentage in the ground state of the target nucleus. The observed γ-ray angular distributions are characterized by the orbital angular momenta of the final states and the observed total cross sections reveal, when compared with model calculations, the spectroscopic factors for the final states. These features are similar to results derived from stripping reactions. The direct capture mechanism (electromagnetic interaction) is amenable to exact calculations in contrast to the more complex stripping reaction mechanism. The results for proton capture by 16O and 17O targets will be compared with available stripping data as well as shell-model calculations.
- Publication:
-
Nuclear Physics A
- Pub Date:
- December 1973
- DOI:
- 10.1016/0375-9474(73)90622-2
- Bibcode:
- 1973NuPhA.217...29R