Two-Nucleon Phase-Shift-Set Discrimination by Means of the Binary Optical Potential

The scattering of nucleons from light nuclei at energies of 142, 210, and 310 MeV is calculated using the multiple-scattering optical potential obtained by retaining all terms which are binary or less in the two-nucleon amplitudes. The binary potential includes the impulse-approximation correction as well as the double-scattering correction. Nucleon-nucleus scattering observables are computed, using optical potentials calculated with some of the Yale and Livermore phase-parameter sets and the Fermi and Brueckner-Gammel nuclear-correlation functions. The observables are compared with data in an effort to ascertain the differences caused by changing $N-N$ scattering phase parameters and/or nuclear-correlation functions and to see whether it is feasible to use such changes in attempts to pin down $N-N$ and nuclear parameters.