Differential Scattering of Neutrons at Narrow Levels inO17

We measure the differential cross sections for scattering of neutrons from ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ at or near four narrow resonances. The energy spread of the incident neutrons ranges from 5 to 13 keV full width at half maximum. We detect scattered neutrons as a function of angle with a stilbene crystal. Using phase shifts from previous work, we analyze the differential data and make resonant parameter assignments as follows (in order: excitation energy of ${}_{}{}^{17}{}_{}{}^{}\mathrm{O}$ in keV, $J$ value, parity, and c.m. resonant width in keV: $5867 (\frac{3}{2}+,6.6)$, $7164 (\frac{5}{2}-,1.4)$, $7377 (\frac{5}{2}+,0.5)$, and $7380 (\frac{5}{2}-,1.1)$. In table form, we review level assignments of ${}_{}{}^{17}{}_{}{}^{}\mathrm{O}$ up to 7380-keV excitation energy and give estimates of reduced widths in single-particle units.