The Interactions Between pi-Mesons and Nucleons

Abstract

During the some seven years which have elapsed since the
\nfirst observa­tion of artificially produced π-mesons
\nat Berkeley, we have seen a very rapid development of
\nelementary particle physics. There are now at least a dozen
\naccelerators capable of producing π-mesons, including
\nseveral which have created or are expected to create heavier
\nparticles. As a result of the work done with these machines,
\nit is perhaps fair to say that we have at least a qualitative knowledge of the elementary interactions of mesons with nu­cleons at low energies.