Abstract
Nuclear spins and precise values of the magnetic dipole and electric quadrupole moments of the ground states of neutron-rich isotopes were measured using the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at the CERN On-Line Isotope Mass Separator (ISOLDE) facility. The nuclear moments of the less exotic isotopes were remeasured with similar precision, yielding values that are consistent with earlier measurements. The moments of the odd-odd isotopes, and () in particular, are used to investigate excitations of the assumed doubly magic core through comparisons with large-scale shell-model calculations. Despite the narrowing of the shell gap between and , the magicity of and is restored toward . This is due to weakened dynamical correlations, as clearly probed by the present moment measurements.
- Received 27 May 2017
- Revised 3 August 2017
DOI:https://doi.org/10.1103/PhysRevC.96.041302
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
Published by the American Physical Society