Abstract
The locations of 48 energy levels in have been deduced from -ray singles, conversion-electron, and coincidence measurements on the decay of . Over -ray transitions have been observed in the decay spectrum, and about 140 of these have been definitely assigned to the level scheme on the basis of 75 coincidence spectra. Spin and parity assignments are proposed for 27 levels besides the ground-state rotationalband members. Less extensive -ray singles data from and decay have also been obtained; these are found to be consistent with the level structure proposed on the basis of decay data. Two excitations in identified at 1150 and 1293 keV are found to display quite different decay properties. Evidence for the existence of a series of low-spin four-quasiparticle states near 3 MeV is cited. The level structure is compared with available theoretical calculations, and a preliminary interpretation of several unusual features of the level scheme is presented.
- Received 28 September 1970
DOI:https://doi.org/10.1103/PhysRevC.3.1294
©1971 American Physical Society