Elastic and inelastic form factors for electron scattering from the ground-state rotational band of ${}_{}{}^{181}{}_{}{}^{}\mathrm{Ta}$ have been studied for momentum transfers $0.4 {\mathrm{fm}}^{-1\mathrm{}}<~q_{\mathrm{eff}}<~2.7 {\mathrm{fm}}^{-1\mathrm{}}$. The data are shown to provide an independent check of the rotational assumption, thus adding confidence that the experimental form factors are characteristic of a stable intrinsic state associated with the rotational band. The data are also compared to a Hartree-Fock calculation using density-dependent interactions.

• Received 28 November 1977

DOI:https://doi.org/10.1103/PhysRevLett.40.368