Abstract
The neutron deficient nucleus was studied by fast ion beam collinear laser spectroscopy with a detection scheme based on optical pumping, state selective neutralization, and atom counting. From the measured hyperfine splitting and isotope shift of the Sr II transition 5s →5p the nuclear spin I=5/2, the nuclear moments μ=-0.348(4), =1.40(11) b, and the change in mean square charge radius δ〈=0.248(12) were deduced. These ground-state properties indicate a large prolate deformation of ≃0.4 and allow a comparison with calculations performed in the particle-plus-deformed-core model, assigning a [422]5/2 Nilsson configuration to the ground state of .
- Received 23 March 1992
DOI:https://doi.org/10.1103/PhysRevC.46.797
©1992 American Physical Society