Evolution of shape and collectivity along the Ge isotopic chain: The case of $^{80}\mathrm{Ge}$
Résumé
The shape and collectivity of were investigated via a sub-barrier-energy Coulomb excitation measurement using the JANUS setup at the NSCL ReA3 facility. The spectroscopic quadrupole moment of the state was measured for the first time, and the precision of the transition strength was increased. The experimental value indicates a large, prolate deformation for , which is consistent with large-scale shell-model calculations performed for comparison. These results provide important benchmarks for models that try to describe nuclear shape in neutron-rich nuclei near the magic number .