The damping of single-particle wave functions, using nonlocal potentials derived in the Hartree-Fock (HF), and no-polarization approximations with respect to wave functions obtained from "equivalent" local potentials is investigated for low-energy $n-{}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ scattering. It is found that strong damping due to the HF exchange term occurs only if the basic nucleon-nucleon interaction is nonlocal; when local interactions are used, a small amount of anti-damping occurs. A study is made of the effect of adding two-body correlations to the ground-state target wave function, where it is found that strong damping effects occur for local nucleon-nucleon interactions.

• Received 12 February 1971

DOI:https://doi.org/10.1103/PhysRevC.4.2020