Inelastic scattering of 162 MeV ${\mathrm{\pi }}^{\mathrm{-}}$ and ${\mathrm{\pi }}^{+}$ was used to study the previously known ${\mathit{J}}^{\mathrm{\pi }}$=$8^{\mathrm{-}}$ stretched transitions in ${}_{}{}^{60}{}_{}{}^{}\mathrm{Ni}$. A consistent analysis of data from electron and pion scattering to stretched states using both harmonic oscillator and Woods-Saxon wave functions (unbound as necessary) was performed for ${}_{}{}^{60}{}_{}{}^{}\mathrm{Ni}$ and three other nuclei: ${}_{}{}^{14}{}_{}{}^{}\mathrm{C}$, ${}_{}{}^{28}{}_{}{}^{}\mathrm{Si}$, and ${}_{}{}^{54}{}_{}{}^{}\mathrm{Fe}$. The experimental pion scattering cross sections were reproduced by distorted-wave impulse approximation calculations using wave functions from (e,e’) with a normalization factor N that generally varied from 1 to 5. The ratio of the total isoscalar to the total isovector strength ranged from 0.2 to 1.2. The use of Woods-Saxon wave functions in the analysis did not significantly improve the fits to the angular distributions.

• Received 24 July 1989

DOI:https://doi.org/10.1103/PhysRevC.41.2246