Cyclotron radiation of neutrino pair in Weinberg-Salam model allowing for electrons polarization

The magnetic bremsstrahlung of a neutrino pair is considered, taking account of the initial or final electron polarization within the framework of the Weinberg-Salam weak-interaction model. In the case of ultrarelativistic particle energies, the transition to crossed fields is made, and expressions are obtained for the probability of the process in the two limiting cases: χ=Hеp$_{0}/m$^{3}$≪l and χ≫1.