Strange Particles: Decays

The theory- of weak interactions of elementary- particles is reviewed relative to the hypotheses of the universal rermi V--A interaction between particles and the composite model of strangely- interacting particles. Emphasis is placed on leptonic decays of strage particles. The properties of weak interactions are discussed. The nature of the weak interaction in muon decay is discussed. The strange particle decavs arising from the two cases of lepton interactions with strongly interacting particies involving no change in the strangeness of the latter are discussed. The non-leptonic decay's of strange particles are considered. (C.J.G.)