Abstract
The nuclear states in have been investigated following the β decay of . The measurement of was carried out at the National Superconducting Cyclotron Laboratory using fragments from the reaction of a beam in a Be target. The half-life and total neutron emission probability were determined to be 97(8) ms and 7(2)%, respectively, for β decay. Ten γ-ray decays in and a single γ-ray in were observed to establish the β decay scheme for . Shell model calculations are in reasonable agreement with the measured β branching and (GT) values for the lowest energy state. The excitation energies of the first and states have been determined to be 2243(8) and 4066(16) keV, respectively, indicating a widening of the – state gap in . The decay scheme of the largest contaminant in the experiment was established.
2 More- Received 28 September 2006
DOI:https://doi.org/10.1103/PhysRevC.75.024305
©2007 American Physical Society