Lepton energy and angle dependence theorems for radiative neutrino scattering

Explicit expressions for dependence of cross sections for neutrino processes on lepton energy and angle variables have been obtained as implications of lepton pair locality by Pais and Treiman. We show here that for neutrino processes accompanied by emission of a photon, a modified version of their theorem can be obtained giving dependence of the cross sections on the lepton-system variables.