Abstract
The decay of , produced in the relativistic fission of a beam, was experimentally studied at the RIBF facility at the RIKEN Nishina Center. From the radiation emitted after the decays, a level scheme of was established comprising 31 excited states and 69 -ray transitions. The experimentally determined level energies are compared to state-of-the-art shell-model calculations. The half-lives of the two -decaying states in were deduced and the feeding to excited states in were analyzed. It is found that, as in most cases in the , region, both decays are dominated by the Gamow–Teller transition, although the contribution of first-forbidden transitions cannot be neglected.
1 More- Received 19 January 2015
- Revised 30 April 2015
DOI:https://doi.org/10.1103/PhysRevC.91.054324
©2015 American Physical Society