Nuclear charge radii of proton-rich strontium isotopes

D. A. Eastham; P. M. Walker; J. R. H. Smith; D. D. Warner; J. A. R. Griffith; D. E. Evans; S. A. Wells; M. J. Fawcett; I. S. Grant

doi:10.1103/PhysRevC.36.1583

Nuclear charge radii of proton-rich strontium isotopes

D. A. Eastham, P. M. Walker, J. R. H. Smith, D. D. Warner, J. A. R. Griffith, D. E. Evans, S. A. Wells, M. J. Fawcett, and I. S. Grant

Phys. Rev. C 36, 1583 – Published 1 October 1987

Abstract

A new technique of atom-photon coincidence laser spectroscopy has been developed and used to study the isotope shifts of ${}^{78 - 84}{Sr}$ . The results show that neither the droplet model nor existing interacting boson model calculations can adequately describe the rapid onset of nuclear deformation below N=50. The odd-even staggering of the charge radius is found to be opposite to that normally encountered, indicating the possible existence of permanent octupole distortions.