Examples of Semiclassical Instanton-Like Scattering: Massless ϕ4 and SU(2) Gauge Theories
D. T. Son, P. G. Tinyakov
Abstract
Two-parameter sets of solutions to the classical field equations in the massless ϕ4 model and SU(2) gauge theory are found, each solution presumably describing a multi-particle instanton-like transition at high energy. In the limit of small number of initial particles, the probability of the transition is suppressed by (-2S0), where S0 is the instanton action.
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