Abstract
The beta-delayed proton emissions of the odd-Z, =-(3/2) nuclei and have been studied. This work represents the first observation of the decay of , yielding a half-life of 260±80 ms, and completes the series of beta-delayed proton emitters with =-(3/2) in the sd shell. Several new proton groups were attributed to the decay of ; their half-lives are consistent with a previous observation. The estimated logft values of the observed transitions for both and are consistent with clustering of the beta strength above the isobaric analog states in the daughter nuclei as predicted by a complete (1s,0d)-space shell-model calculation. The observed half-lives are in good agreement with the shell-model predictions which include a quenching of the Gamow-Teller strength by a factor of 0.6, in accordance with earlier observations.
- Received 1 July 1985
DOI:https://doi.org/10.1103/PhysRevC.32.1700
©1985 American Physical Society