On the photoproduction of a massive neutring-antineutrino pair on an electron

Consideration is being given to results of calculation conducted on the basis of standard electroweak model, ener-- gy and angular distribution of resulting electrons obtained in photoproduction of neutrino-antineutrino pair with nonzero rest mass on an electron. Analysis of formulae shows that in the region of high photon energies (ω >> m) the contribution into expressions for differential cross sections of addends conditioned by neutral currents can be ignored. This contribution can be noticeable in the region of low photon energies (ω approximately equal to m). In the framework of standard electroweak model the possible contribution of addends conditioned by neutral currents, for example, into the expression for energy spectrum of resulting electrons achieves during oroduction of νsub(e) νsub(e) tilde and νsub(μ)νsub(μ) tilde pairs 17 and 19% respecively