Abstract
The -delayed proton spectra of and the hitherto unknown isotope were investigated in bombardments of and ., respectively. The + data confirm preliminary results of Klepper et al. that the delayed-proton spectrum has a high-energy cutoff at ∼5 MeV and is dominated by distinct peaks below 4 MeV in excitation. The proton spectrum following decay has a half-life of 9±1 sec and extends from about 2.0 to 6.5 MeV; it has less of the sharp structure observed for . The difference probably arises from the expected lower level density in , a nucleus with one proton outside the core.
- Received 16 February 1984
DOI:https://doi.org/10.1103/PhysRevC.30.712
©1984 American Physical Society