Phase Shift Calculations for Proton-Proton Scattering at High Energies

The theoretical s wave shift for the square well and the Gauss error well which is fitted to experiment from 0.7 to 2.6 Mev is calculated up to energies of 10 Mev. Coulomb functions needed for this purpose are tabulated and the phase shift, as well as the ratio of theoretical scattering to that expected according to Mott's formula, is represented graphically as a function of the energy. The Gauss error well and the square well are found to give very similar extrapolations of the experimental phase shifts to high energies.