Abstract
The decay of and was investigated in an experiment at the National Superconducting Cyclotron Laboratory of Michigan State University. For the first time -delayed proton emission from was observed with a branching ratio of 0.7(1)%. The proton-energy spectrum allowed for probing the Gamow-Teller strength distribution above the proton-separation energy in the daughter nucleus. Moreover, the absolute branching ration for delayed-proton emission from was found to be compatible with 100%.
- Received 10 January 2020
- Accepted 28 February 2020
DOI:https://doi.org/10.1103/PhysRevC.101.034305
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