Abstract
Isotope shifts of the stable strontium isotopes , , , and and the radioactive isotopes and have been measured using laser spectroscopy on collimated atomic beams. The changes in mean square charge radii extracted from the isotope shifts show a pronounced shell effect at the closed neutron shell N=50. The experimental data are compared with the predictions of the droplet model and Hartree-Fock plus BCS calculations. The analysis suggests that the changes in mean square charge radii are due to a change in size, a change in the predominantly dynamic deformation, and a change in the diffuseness of the nuclear charge distribution.
- Received 28 May 1985
DOI:https://doi.org/10.1103/PhysRevC.32.2058
©1985 American Physical Society