Analysis of the 142-MeV Proton-Proton Scattering Data

Abstract

After some amount of data selection, modified phase-shift analyses were made on the 137.5-147-MeV proton-proton scattering data. Standard deviations were obtained for phase shifts of the Stapp-Ypsilantis-Metropolis solution type 1. As previously reported by Perring, solution 2 was found to be very improbable. The pion-nucleon coupling constant was not well defined by the data at this energy. The Amati-Leader-Vitale phases were examined, and several discrepancies noted. Further experiments are suggested.