NON-LEPTONIC HYPERON DECAYS IN SU(3)

Using an s-u-channel-symmetric weak Hamiltonian (8 27) and assuming intermediate states to be nonexotic, we obtain most of the observed features, such as the ΔI=12 rule and the Lee-Sugawara sum rule, for parity-violating (pv) as well as parity-conserving (pc) decays of (1/2)+ hyperons. In addition two sum rules ++=0 and 2++-0+=3Λ-0 in pv and pc modes, respectively, are also obtained, which are well satisfied experimentally. For Ω-→Ξ+π decays, however, the ΔI=12 rule does not follow. Recent CERN data on this mode do indicate about 20% violation of the ΔI=12 rule. © 1979 The American Physical Society.