Hyperons and Heavy Mesons : Systematics and Decays, 1957

We attempt, in this article, to summarize the information available, both experimental and theoretical, on the classification and decays of hyperons and heavy mesons. Our principal emphasis is on the "weak interactions" responsible for the slow decays of these particles. The "strong interactions" involved in production and scattering phenomena form a separate topic, which we do not discuss at length. We do, however, mention the hyperfragments, the study of which bears on both kinds of interactions.