Tensor analyzing power measurements in theO16(d→,α)N14reaction at 0°

The tensor analyzing power near 0° is measured in the ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}(\overrightarrow{d},\alpha ){}_{}{}^{14}{}_{}{}^{}\mathrm{N}$ reaction at beam energies of 11, 12, 13, and 14 MeV. Spin-parity assignments for states in ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$ from 4.91 to 9.13 MeV are deduced. In particular, $J^{\pi }=0^{-}$ assignments are made to the level at 4.91 MeV as well as one member of the doublet at 9.13 MeV. The method is discussed, with emphasis on the technique of energy averaging of the cross sections and on the effects of small deviations of the detection angle from 0°. Comparisons of these predictions are made also with data for the ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}(\overrightarrow{d},\alpha ){}_{}{}^{10}{}_{}{}^{}\mathrm{B}$ reaction.