Scattering of 24.5-MeV Protons fromY89

Scattering of 24.5-MeV protons from ${}_{}{}^{89}{}_{}{}^{}\mathrm{Y}$ has been measured. Angular distributions were obtained for the ground state and the first four excited states as well as for several unresolved multiplets. The inelastic scattering data have been analyzed, using the collective model and a microscopic model with and without core-polarization effects.