On polarization of strange baryons in reactions p + p → p + Λ~0 + K~+ and p + p → ∑~0 + K~+ near thresholds

摘要

Polarization properties of strange baryons produced in pp reactions, p + p → p + Λ~0 + K~+ and p + p → ∑~0 + K~+, near thresholds of the final states pΛ~0K~+ and p∑~0K~+ are analysed relative to polarizations of colliding protons. The cross-sections for pp reactions are calculated within the effective Lagrangian approach accounting for strong pp rescattering in the initial state of colliding protons with a dominant contribution of the one-pion exchange and strong final-state interaction of daughter hadrons (Eur. Phys. J. A 9, 425 (2000)).