Elastic and inelastic scattering of 291-MeV pions by /sup 9/Be, Si, /sup 58/Ni, and /sup 208/Pb

Angular distributions for the elastic and inelastic scattering of 291-MeV ..pi../sup +/ and ..pi../sup -/ by /sup 9/Be, Si, /sup 58/Ni, and /sup 208/Pb have been measured. The characteristics of two first-order optical potentials have been investigated, and reasonable agreement with the elastic scattering data has been obtained. Macroscopic distorted-wave impulse approximation calculations of the inelastic scattering with Kisslinger potentials are reasonably successful in reproducing the experimental data. The inelastic scattering results for /sup 9/Be provide evidence for the importance of radial localization effects in pion inelastic scattering.