Influence of the N=50 shell closure on mean square charge radii of strontium

F. Buchinger, R. Corriveau, E. B. Ramsay, D. Berdichevsky, and D. W. L. Sprung
Phys. Rev. C 32, 2058 – Published 1 December 1985
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Abstract

Isotope shifts of the stable strontium isotopes Sr84, Sr86, Sr87, and Sr88 and the radioactive isotopes Sr89 and Sr90 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

Authors & Affiliations

F. Buchinger, R. Corriveau, and E. B. Ramsay

  • Foster Radiation Laboratory, McGill University, Montreal, Quebec, Canada H3A 2B2

D. Berdichevsky and D. W. L. Sprung

  • Physics Department, McMaster University, Hamilton, Ontario, Canada L8S 4M1

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Vol. 32, Iss. 6 — December 1985

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