This article is cited in 1 paper

Phenomenological Lagrangians in quantum field theory

N. A. Il'ichev, L. V. Prokhorov


Abstract: It is shown that in a theory of quantized fields one can always construct an effective interaction which gives the exact scatt.ering amplitude at all energies in the tree approximation (i.e., in the lowest order of perturbation theory). The transition to a local interaction is discussed. It is shown that no local effective interaction exists for massive fields.

Received: 13.07.1970

 English version: Theoretical and Mathematical Physics, 1971, 6:3, 221–228