Pion-nucleus scattering has been analyzed using an equivalent local potential to calculate the differential cross sections for pions elastically scattered from ${}^{12}\mathrm{C},{\hspace{0.5em}}^{16}\mathrm{O},{\hspace{0.5em}}^{28}\mathrm{Si},$ and ${}^{40,44,48}\mathrm{Ca}$ in the energy range of 30 to 292 MeV. The DWUCK4 computer program was used to predict observables of pion-nucleus elastic scattering. Our results are successfully compared to recent data. The skin neutrons in ${}^{44,48}\mathrm{Ca}$ contribute to ${\pi }^{\pm }$ elastic scattering in this energy range more than the protons.

• Received 7 September 1999

DOI:https://doi.org/10.1103/PhysRevC.62.024603