Inclusive (π±,π0) reactions in nuclei

Nuclear pion single-charge exchange has been studied using a method of ..pi../sup 0/ detection based on the spectroscopy of the back-angle ..gamma..-ray decay. Charge-exchange scattering from nuclei ranging from Be to Pb was studied for incident pion energies of 50 and 100 MeV. The angular distributions and ..pi../sup 0/ energy spectra beyond 60/sup 0/ suggest effects characteristic of quasifree scattering. Total charge-exchange cross sections are larger than values suggested by optical-model calculations.