K −p reactions from 0.960 to 1.355 GeV/ c involving two-body final states

Abstract

Data are presented from a high statistics bubble chamber experiment to study K −p interactions in the c.m. energy range 1775 to 1957 MeV. For the reactions K −p → K −p, K − p → K 0 n , K −p → Λπ 0 and K −p → Σ ± π ∓ channel cross sections, differential cross sections and, where appropriate, polarisation distributions have been obtained. The channel cross sections for K −p → Σ 0 π 0 are presented. In general the results are in agreement with those previously published although a significant discrepancy has been found in the Σ ± π ∓ cross sections at the lower energies. New measurements of the Σ ± lifetimes have also been obtained ( τ Σ − = 1.49 ± 0.03 × 10 −10 sec, τ Σ + = 0.807 ± 0.013 × 10 −10 sec).