Measurements are reported of form factors for the electroexcitation of the $0^{+}$ (6.052-MeV), $3^{-}$ (6.131-MeV), $2^{+}$ (6.916-MeV), and $1^{-}$ (7.115-MeV) states of ${\mathrm{O}}^{16}$, in the momentum-transfer region 0.5 to 1.0 ${\mathrm{fm}}^{-1\mathrm{}}$. The data are compared with the predictions of various particle-hole shell models and a two-component phenomenological model.

• Received 15 December 1969

DOI:https://doi.org/10.1103/PhysRevLett.24.152