Levels inU237studied by resonant neutron capture

Primary and secondary $\gamma$ rays in ${}_{}{}^{237}{}_{}{}^{}\mathrm{U}$ from resonant neutron capture in ${}_{}{}^{236}{}_{}{}^{}\mathrm{U}$ have been measured with the fast chopper facility, the neutron monochromator, and 2- and 24-keV neutron beam filters. A level scheme was constructed including 27 levels with spin and parity assignments. Rotational band members of the Nilsson configurations [631↓], [622↑], [624↓], [631↑], [633↓], and [501↓] and of the vibrational bands {[622↑] - $2^{+}$} and {[631↓] + $0^{+}$} were identified. There are more levels below 800 keV, in particular, $K=\frac{1}{2^{-}}$ bands, than expected from comparison with ${}_{}{}^{235}{}_{}{}^{}\mathrm{U}$ and ${}_{}{}^{239}{}_{}{}^{}\mathrm{U}$. The neutron binding energy in ${}_{}{}^{237}{}_{}{}^{}\mathrm{U}$ was determined to be 5125.9±0.5 keV.