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

Abstract

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 twonucleon 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.

Antiproton elastic scattering on even-even nuclei

“…In Ref. [34] it is estimated that lo = 0.88Fm. When e varies slowly over a distance lo, we can estimate CSR, the Fourier transform of CsR, by putting x = y in the Fourier integral.…”

High-energy approximations to nuclear scattering

“…Watson's multiple scattering expansion [2][3][4][5] has been used extensively in the study of the optical potential up to second order [6][7][8][9][10][11]. A different method based on the work by Kerman, McManus and Thaler [12] has recently been developed by Feshbach and collaborators [13][14][15].…”