Abstract
The technique of recoil β tagging has been developed which allows prompt γ decays in nuclei from excited states to be correlated with electrons from their subsequent short-lived β decay. This technique is ideal for studying nuclei very far from stability and improves in sensitivity for very short-lived decays and for high decay Q-values. The method has allowed excited states in to be observed for the first time, as well as an extension in the knowledge of states in . From this new information it has been possible to compare Coulomb energy differences (CED) between states in /, /, and /. The CED exhibit an anomalous behavior which is inconsistent with all other known CED. This behavior may be accounted for qualitatively in terms of small variations in the Coulomb energy arising from shape changes.
- Received 3 November 2006
DOI:https://doi.org/10.1103/PhysRevC.75.061301
©2007 American Physical Society