Abstract
The electric quadrupole moment of the ground state, located at the border of the island of inversion, was obtained using continuous-beam -detected nuclear quadrupole resonance (-NQR). From the measured quadrupole coupling constant MHz in an crystal, a precise value for the electric quadrupole moment is extracted: mb. A comparison with large-scale shell model calculations shows that has at least 50% intruder configurations in the ground state wave function, favoring the excitation of two neutrons across the shell gap. therefore clearly marks the gradual transition north of the deformed Na and Mg nuclei towards the normal isotopes.
- Received 5 July 2016
DOI:https://doi.org/10.1103/PhysRevC.94.034312
©2016 American Physical Society