Photoproduction of neutrinos on nuclei in a strong magnetic field

The coalescence of photons on nuclei in a strong magnetic field with the production of neutrino pairs is studied in the framework of the Glashow–Weinberg–Salam model. At inductions $B\gg B_0=m^2/e=4,41\cdot 10^{13}$ G, the magnetic field plays the part of a stimulating factor and leads to a quadratic growth of the cross sections and probabilities. Closed expressions are obtained for the physical properties of the process. Numerical calculations, which are represented in graphical form, make it possible to estimate the role of neutral currents and the relative contribution of the $\nu_e\overline\nu_e$ and $\nu_\mu\overline\nu_\mu$ pair production mechanisms. The possible contribution of the process to the neutrino luminosity of collapsed objects is discussed.