The ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}(d, {\alpha }_3){}_{}{}^{14}{}_{}{}^{}\mathrm{N}$ reaction involves the spin-parity system 0+1+→0+$0^{-}$ and as such is important for absolute determination of deuteron vector analyzing powers. To aid in such uses I have measured $\frac{d\sigma }{d\Omega }$ at 17 angles for $6.7<\mathrm{}{E}_d<12.5\mathrm{}$ MeV. The new data identify a number of unnatural parity states in ${}_{}{}^{18}{}_{}{}^{}\mathrm{F}$ and usually limit their $J^{\pi }$ assignments to one of two values.

NUCLEAR REACTIONS ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}(d, {\alpha }_3){}_{}{}^{14}{}_{}{}^{}\mathrm{N}$, $E_d=6.7-12.5\mathrm{}$ MeV; measured $\sigma (E, \theta )$ at 17 angles, $\Delta E_d=30\mathrm{}$ keV for $E_d<12.0\mathrm{}$ MeV; ${}_{}{}^{18}{}_{}{}^{}\mathrm{F}$ deduced levels, $J$, $\pi$. Calculated coherence widths.

• Received 24 April 1978

DOI:https://doi.org/10.1103/PhysRevC.18.1547