2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/82221A new development in the antisymmetrization of the first-order nucleon-nucleus elastic microscopic optical potential is presented which systematically includes the many-body character of the nucleus within the two-body scattering operators. The results reduce the overall strength of the nucleon-nucleus potential and require the inclusion of historically excluded channels from the nucleon-nucleon potential input. Calculations produced improve the match with neutron-nucleus total cross section, elastic proton-nucleus differential cross section, and spin observable data. A comparison is also done using different nucleon-nucleon potentials from the past twenty years.15 pages, 11 figures, two tables. Presented at the Spring 2004 APS meeting in Denver, ColoradoNuclear Theorytext