The ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}({}_{}{}^6{}_{}{}^{}\mathrm{Li},t){}_{}{}^{13}{}_{}{}^{}\mathrm{N}$ and ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}({}_{}{}^6{}_{}{}^{}\mathrm{Li},{}_{}{}^3{}_{}{}^{}\mathrm{He}){}_{}{}^{13}{}_{}{}^{}\mathrm{C}$ reactions were induced with $E_{{}_{}{}^6{}_{}{}^{}\mathrm{Li}}=18\mathrm{}$ MeV in order to test the assignment of mirror pairs by direct comparison of the resulting spectra. The technique appears to be reliable up to excitations of ∼ 10 MeV for these cases. Some new analog pairs are suggested, and a hitherto unreported state is identified at 9.00 MeV in ${}_{}{}^{13}{}_{}{}^{}\mathrm{N}$.

[NUCLEAR REACTIONS ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}({}_{}{}^6{}_{}{}^{}\mathrm{Li},t)$, ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}({}_{}{}^6{}_{}{}^{}\mathrm{Li},{}_{}{}^3{}_{}{}^{}\mathrm{He}) E=18\mathrm{}$ MeV; measured energy levels, $\sigma \left(\theta \right)$; identified $J$, $\pi$ and analog pairs of states in ${}_{}{}^{13}{}_{}{}^{}\mathrm{N}$ and ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}$.]

• Received 27 April 1973

DOI:https://doi.org/10.1103/PhysRevC.9.902