Abstract
has been produced via the reaction at 32 MeV beam energy. Identification is made from the observed rays of energies 429.07(13) and 1607.56(50) keV, which agree with the known excitation energies of the first two excited states of , and from the cascade 1178.52(16)-keV transition. The three rays decay with a common half-life of 2.77 ± 0.20 sec. Relative -ray intensities indicate a 100% -ray branch to the 1608-keV level, and the -ray branches of that level are determined. No information is obtained on a possible ground-state -ray branch. From analysis of the -ray energy spectrum, a mass excess of - 19850 ± 300 keV is determined for . Comparison with theoretical mass predictions is made.
RADIOACTIVITY : measured , deduced decay scheme; measured coincidences; deduced ,, mass excess, ; compared with theory.
- Received 22 December 1976
DOI:https://doi.org/10.1103/PhysRevC.15.1448
©1977 American Physical Society