Analysis of Alpha-Particle Elastic Scattering Experiments

By a simple modification of the sharp cutoff (Blair) approximation, a phase-shift analysis has been found to reproduce the experimental alpha-particle elastic scattering data from silver. Only two adjustable parameters were required to fit the experimental data for 22-Mev scattering; four parameters were used for the 40-Mev data. The uniqueness of the fits has not been determined.