Selective population with both ${}_{}{}^3{}_{}{}^{}\mathrm{C}({}_{}{}^6{}_{}{}^{}\mathrm{Li}, d)$ and ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}({}_{}{}^7{}_{}{}^{}\mathrm{Li}, t)$ is observed for a peak at 13.58±0.02 MeV in ${}_{}{}^{17}{}_{}{}^{}\mathrm{O}$. The peak corresponds to a broad state or states whose combined (${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, $d$) angular distribution is similar to the ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}({}_{}{}^6{}_{}{}^{}\mathrm{Li}, d){}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ (6+, 16.29 MeV) distribution. Based on the relative populations of states with the ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}({}_{}{}^7{}_{}{}^{}\mathrm{Li}, t)$ and ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}({}_{}{}^7{}_{}{}^{}\mathrm{Li}, t)$ reactions, the shapes of the ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}({}_{}{}^6{}_{}{}^{}\mathrm{Li}, d)$ and ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}({}_{}{}^6{}_{}{}^{}\mathrm{Li}, d)$ angular distributions and the fact that a peak is not observed in ${}_{}{}^{15}{}_{}{}^{}\mathrm{N}(\alpha , d)$ at this energy, the peak is suggested to contain a state or states of spins $\frac{11}{2^{-}}$, $\frac{13}{2^{-}}$, or both, with a weak coupling configuration of ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}(6^{+}, 16.29)\otimes p_{\frac{1}{2}}$. Strongly excited peaks are also observed at 14.86, 18.17, and 19.24 MeV in ${}_{}{}^{17}{}_{}{}^{}\mathrm{O}$.

NUCLEAR REACTIONS ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}({}_{}{}^6{}_{}{}^{}\mathrm{Li}, d)$, (${}_{}{}^7{}_{}{}^{}\mathrm{Li}$, $t$), $E=34, 36$ MeV, measured $\sigma (E, \theta )$ and compared results with ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}({}_{}{}^6{}_{}{}^{}\mathrm{Li}, d)$, (${}_{}{}^7{}_{}{}^{}\mathrm{Li}$, $t$). Suggested spin of $\frac{{11}^{-}}{2}$ or $\frac{{13}^{-}}{2}$ or both for the peak at 13.58±0.02 MeV in ${}_{}{}^{17}{}_{}{}^{}\mathrm{O}$.

• Received 21 March 1978

DOI:https://doi.org/10.1103/PhysRevC.18.1262