Lifetimes of ground-band states inNd150

Members of the ground-state band of ${}_{}{}^{150}{}_{}{}^{}\mathrm{Nd}$ to spin $8^{+}$ have been Coulomb excited with 149-MeV ${}_{}{}^{40}{}_{}{}^{}\mathrm{Ar}$ ions, and the lifetimes of these states have been measured by the Doppler-shift recoil distance method. The half-lives of the $2^{+}$, $4^{+}$, $6^{+}$, and $8^{+}$ states are 1.44±0.07 ns, 63.0±3.2 ps, 12.4±1.1 ps, and 4.0±0.4 ps, respectively. The observed enhancement of the experimental $B\left(E2\mathrm{}\right)\mathrm{}$'s over rotational values is found to be in agreement with a simple band-mixing description.