Angular distributions of elastic differential cross sections were obtained at 65 MeV using positive and negative pions scattered from Ni58, Ni60, and Ni64. The data were compared to predictions using the Michigan State University optical potential. These predictions are not in good agreement with the data. The negative pion cross sections are more poorly described than the positive pion cross sections. The p-wave part of the potential is observed to be especially sensitive to this Coulomb-nuclear interference effect.
ASJC Scopus subject areas
- Nuclear and High Energy Physics