Elastic Scattering of 400-MeV Protons byPb208

Abstract
Cross-section and analyzing-power angular distributions for elastic scattering of 400-MeV protons by Pb208 have been measured between 3° and 51°. Results have been compared to second-order Kerman-McManus-Thaler calculations of the optical potential. There is evidence that free nucleon-nucleon scattering amplitudes do not adequately describe nucleon propagation in nuclear matter at this energy.