Abstract
The isotopes , , and have been studied via intermediate-energy Coulomb excitation at the National Superconducting Cyclotron Laboratory. Absolute excitation strengths have been determined for all three nuclei using a consistent experimental approach, and a measure of quadrupole collectivity has been established in the vicinity of the much discussed doubly magic shell closure at . The energy of and excitation strength to the first state of have been observed for the first time. The results are compared to large-scale shell-model calculations that predict that the strength in should be divided between the first and second states.
- Received 13 March 2004
DOI:https://doi.org/10.1103/PhysRevC.70.054319
©2004 American Physical Society