2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/200566Low energy $p\bar p$ interaction is considered taking into account the polarization of both particles. The corresponding cross sections are calculated using the Paris nucleon-antinucleon optical potential. Then they are applied to the analysis of the polarization buildup which is due to the interaction of stored antiprotons with polarized protons of a hydrogen target. It is shown that, at realistic parameters of a storage ring and a target, the filtering mechanism provides a noticeable polarization in a time comparable with the beam lifetime.10 pages, 4 figuresHigh Energy Physics - PhenomenologyNuclear TheoryAccelerator Physicstext