High‐energy behavior of renormalized Feynman amplitudes. II

Abstract

The high‐energy polynomial and logarithmic behavior of renormalized Feynman amplitudes, involving subtractions, is studied with total generality when some or all of the external momenta of the graphs in question become large in Euclidean space nonexceptionally for theories which on experimental grounds may contain zero mass particles. Initially, all the propagators are defined to have nonzero masses in their denominators. The vanishing masses are led to vanish, and in general, at different rates. Rules are given for applications and examples are then worked out to demonstrate the application of these rules.