The 90° yield from the reaction ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}(d,{\gamma }_0){}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ has been measured between 2.1 and 2.9 MeV to accurately determine the location of the strong resonance previously observed in this region. Two separate measurements were made. It is found that the resonance occurs at $E_d=2.40\mathrm{}\pm 0.05$ MeV, moving it with respect to the dip ${}_{}{}^{15}{}_{}{}^{}\mathrm{N}(p,{\gamma }_0){}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ and ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}(\gamma ,n_0){}_{}{}^{15}{}_{}{}^{}\mathrm{O}$. This result brings into question interpretations of the fine structure of the ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ giant dipole resonance made on the basis of earlier experimental work.

• Received 24 May 1971

DOI:https://doi.org/10.1103/PhysRevC.5.648