Studies in Elementary Particle Theory involving the pion nucleon interaction

Abstract

This thesis investigates in some problems in field of elementary particle theory. The thesis is constituted by three parts, part (I) dealing with application of Chew-Low formalisms, to the processes, in production, scattering, and absorption of pions; Part (II) uses the method of dispersion relations and part (III) concerns some stochastic aspects in Cascade theory, & the proof of equivalence of the filed theoretic and Feynman formalisms. The major part of this thesis is devoted to the process of pion-nucleon interaction by application of the Chew-Low formalism method, to certain pion production processes.