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Abstract
| We propose to measure the ground- and isomeric-state properties of gold $(Z = 79)$ isotopes around neutron mid-shell at $(N = 104$) using the Collinear Resonance Ionization Spectroscopy (CRIS) setup. With this, we can extract nuclear properties, in particular spins and quadrupole moments, from the high-resolution hyperfine structure spectra. Our results will provide detailed information on the "island of deformation" characterized by the large nuclear radii observed in the light gold isotopes. Crucially, the quadrupole moments will provide information on the deformation of the ground- and long-lived excited states, and new insight on shape coexistence in this region. |