Elastic scattering of pions fromHe4andO16near 1 GeV

The elastic scattering of pions from ${}_{}{}^4{}_{}{}^{}\mathrm{He}$ and ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ is analyzed with a single-scattering optical potential, which is used in the solution of a relativistic integral scattering equation. Good agreement is obtained with available data near 1 GeV and choices are made for the nuclear and nucleon charge form factors and among the phase parameter sets at this energy.