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๐ SIMILAR VOLUMES
We discuss how massless particle reactions may be incorporated into standard S-matrix theory. The crucial element for doing so is a low energy zero. Examples of reactions where such zeros occur are weak interaction processes involving neutrinos, chirally symmetric massless pion scattering and two ph
Faddeev's Hamiltonian path integral method for singular Lagrangians is generalized to the case when second-class constraints appear in the theory. The general formalism is then applied to several problems: quantization of the massive Yang-Mills field theory, light-cone quantization of the self-inter
In this paper we perform a contraction on the Poincare group which leads to a group isomorphic to the Poincare Group. By "contracting" the canonical representation of the Poincare generators, we show that this iso-Poincare group describes the kinematics of a system of particles all with v, = 1. We g
We study the small X behavior of the ground state energy, E(h), of the Hamiltonian -(d2/dsy