Abstract
The β decay of was studied at CERN/ISOLDE using a resonance ionization laser ion source and mass separator to achieve elemental and mass selectivity, respectively. γ-ray singles and - coincidence spectra were collected as a function of time with the laser on and with the laser off. These data were used to establish the positions of new levels in , including new low-spin states at 440 and 798 keV, which are given tentative spin and parity assignments of and , respectively. The observed levels of are compared with shell-model calculations using different single-particle energies and different interactions.
2 More- Received 14 March 2005
DOI:https://doi.org/10.1103/PhysRevC.72.024305
©2005 American Physical Society