States in ${}_{}{}^{15}{}_{}{}^{}\mathrm{N}$ have been studied by comparing the ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}({}_{}{}^7{}_{}{}^{}\mathrm{Li},\alpha ){}_{}{}^{15}{}_{}{}^{}\mathrm{N}$ and ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}({}_{}{}^6{}_{}{}^{}\mathrm{Li},\alpha ){}_{}{}^{15}{}_{}{}^{}\mathrm{N}$ reactions. States assumed to have an ${\left(sd\right)}^3$ configuration because they are observed strongly in three particle transfer but not in two particle transfer are at 10.70, 12.57, 13.20, and 15.43 MeV, with the 12.57 and 13.20 having the lowest spins. The state previously assigned as ${(p_{\frac{1}{2}}\otimes d_{\frac{5}{2}}^2)}_{\frac{11}{2}-}$ is found at 13.02 MeV in ${}_{}{}^{15}{}_{}{}^{}\mathrm{N}$, in agreement with the previous result of 13.03 MeV.

NUCLEAR REACTIONS ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}({}_{}{}^6{}_{}{}^{}\mathrm{Li},\alpha )$ spectra, $E=32\mathrm{}$ MeV. ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}({}_{}{}^7{}_{}{}^{}\mathrm{Li},\alpha )$ spectra, $E=34.9\mathrm{}$ MeV; inferred structure of ${}_{}{}^{15}{}_{}{}^{}\mathrm{N}$ states by comparison of reactions.

• Received 2 February 1976

DOI:https://doi.org/10.1103/PhysRevC.14.368