Answers are grounded in this paper and cite their sources.
A general expression is derived for the S-matrix elements for a self-interacting boson field in interaction with a classical current. The probability for the emission of boson radiation up to a certain total energy is determined, and it is shown how infrared divergences are canceled or reduced. The formal extension by functional methods to a quantum current is indicated.
No takes yet. Share an insight, caveat, or question.
Eriksson et al. (1978) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: