Abstract
The decays have been studied at the CERN online mass separator ISOLDE by β-γ, β-γ-γ, and measurements in order to corroborate the low-level description of and to obtain the first information on the level structure of the isotope Earlier observed lines in decay were confirmed and new transitions following both decay and neutron emission have been established. The first level scheme of includes three excited states at 910, 974, and 2168 keV. Indication is found for and for the first two excited states, respectively. Beta-decay half-life of and neutron branching value were measured unambiguously. The significance of the single-particle energy determination at for assessing the effective interaction in shell-model calculations is discussed and illustrated by predictions for different neutron-rich isotopes.
- Received 12 May 2000
DOI:https://doi.org/10.1103/PhysRevC.63.044316
©2001 American Physical Society