We have studied states in ${}_{}{}^{15}{}_{}{}^{}\mathrm{O}$ between 10.91- and 13.02-MeV excitation as resonances in the ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}(p,\gamma ){}_{}{}^{15}{}_{}{}^{}\mathrm{O}$ and ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}(p,p^{\prime }\gamma )$ reactions. Several new states are reported, and the elastic, inelastic, and $\gamma$-ray partial widths are given for some of the levels. The levels are compared with corresponding levels in the mirror nucleus ${}_{}{}^{15}{}_{}{}^{}\mathrm{N}$. Of particular interest are the ${\frac{1}{2}}^{+}$ and ${\frac{5}{2}}^{+}$, $T=\frac{3}{2}$ states which should lie in this region. The results imply more mixing of these states in ${}_{}{}^{15}{}_{}{}^{}\mathrm{O}$ with nearby $T=\frac{1}{2}$ levels than is observed in ${}_{}{}^{15}{}_{}{}^{}\mathrm{N}$. However, most of the $T=\frac{3}{2}$ strength in ${}_{}{}^{15}{}_{}{}^{}\mathrm{O}$ remains unaccounted for.

• Received 29 September 1971

DOI:https://doi.org/10.1103/PhysRevC.5.297