Beta decay of polarized Λ hyperons III. Correlations in the Λ centre-of-mass system and the proton recoil spectrum

Abstract

From the analysis of 817 kinematically resonstructed beta decay events of polarized Λ hyperons for the coefficient α ν of the neutrino correlation with respect to the Λ spin, α ν = 0.89 ± 0.08, for the coefficient α T of the T-odd correlation σ Λ ( p e × p ν ), α T = −0.14 ± 0.13. The proton recoil spectrum yields … g 1/ f 1… = 0.64 ± 0.06.