Large-angleπ+p elastic scattering at 66.8 MeV

Abstract

Pion-proton elastic scattering measurements at six angles from 101° to 147° center of mass at 66.8 MeV verify previously published differential cross sections which are at variance with earlier data of others and with generally accepted phase-shift solutions which incorporate these earlier data. The present single-arm measurements were made with solid targets and an array of scintillation counters which measured the time of flight of scattered pions.