Elastic Scattering of 162-MeV Pions by Nuclei

Abstract

The elastic scattering of 162-MeV x+ and m by Be, Si, Ni, and Pb have been measured. All angular distributions, except for Be, exhibit strong diffraction patterns. ;" Optical-model calculations with matter distributions deduced from electron scattering qualitatively reproduce the data, but better agreement for all but Be can be obtained with suitable modifications. No substantial differences in neutron-and proton-matter radii are indicated.