ISSN - 0168583X, Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 2008, vol. 266, p. 1122-1126
Spin effects in p over(p, ̄) interaction and their possible use to polarize antiproton beams
The polarization buildup in a p over(p, ̄) beam which is due to the interaction of stored antiprotons with polarized protons of a hydrogen target is considered. The corresponding cross section is calculated using the Paris nucleon-antinucleon optical potential in the energy interval 20 < Tlab < 100 MeV. It follows from this estimate that, at realistic parameters of a storage ring and a target, the filtering mechanism can provide a noticeable polarization in a time comparable with the beam lifetime. © 2008 Elsevier B.V. All rights reserved.