Neutrino pair production by a virtual photon in an external magnetic   field
  Production of a massive neutrino-antineutrino pair by a virtual polarized photon in the Weiberg-Salam model with mixing is studied. The rate of the neutrino production by photons with various polarizations is found at values of the magnetic field intensity lower than critical. 
V. Ch. Zhukovskii, A. E. Grigoruk, K. G. Levtchenko, P. A. Eminov