The low-lying level structure of ${}_{}{}^{233}{}_{}{}^{}\mathrm{U}$ has been studied with the ${}_{}{}^{234}{}_{}{}^{}\mathrm{U}\mathrm{}(d,t)\mathrm{}$ and the ${}_{}{}^{234}{}_{}{}^{}\mathrm{U}({}_{}{}^3{}_{}{}^{}\mathrm{He},\alpha )$ reactions, induced by 14-MeV deuterons and 30-MeV ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ particles, respectively. Levels below 1 MeV of excitation energy are identified and their cross sections are compared with theoretical values, calculated including both Coriolis and $\Delta N=2\mathrm{}$ mixing. Nilsson band assignments are made and discussed.

NUCLEAR REACTIONS ${}_{}{}^{234}{}_{}{}^{}\mathrm{U}\mathrm{}(d,t)\mathrm{}$, $E_{\mathrm{lab}}=14\mathrm{}$ MeV; ${}_{}{}^{234}{}_{}{}^{}\mathrm{U}({}_{}{}^3{}_{}{}^{}\mathrm{He},\alpha )$, $E_{\mathrm{lab}}=30\mathrm{}$ MeV; measured $\sigma \left(\theta \right)$, deduced $l$ values, Nilsson configurations, and level scheme of ${}_{}{}^{233}{}_{}{}^{}\mathrm{U}$.

• Received 28 September 1977

DOI:https://doi.org/10.1103/PhysRevC.17.927