Radiative decays of strange baryons and the structure of weak interactions

Radiative weak decays such Σ⁺→pγ, Ξ^-→Σ^-γ, etc. are considered and various symmetry relations among these amplitudes are derived. They are then analyzed in a quark model and the operator-product expansion is studied. The effects of introducing right-handed currents are discussed. They are found to change drastically the angular distribution of the decay products, depending on the specific form of the right-handed current used.