A recent measurement of ($e,e$) scattering on ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$ supplies a new parameter, the $q^2$ dependence of $M1\mathrm{}$ excitation to the 2.313 MeV state. An exhaustive analysis precludes a satisfactory fit with the ${\mathrm{}\left(1p\right)\mathrm{}}^{-2\mathrm{}}$ configuration. Comparison with ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$ suggests appreciable core effects at $A=14\mathrm{}$. Inclusion of the 15.1 MeV state in the ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ core permits a generally acceptable fit, although with too great flexibility for uniqueness.

NUCLEAR STRUCTURE Lowest states of ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$, ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$ from ($e,e^{\prime }$) analysis; core excitation model indicated for ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$ but not for ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$.

• Received 25 March 1974

DOI:https://doi.org/10.1103/PhysRevC.10.1229