The decay Z -> neutrino antineutrino photon in the Standard Model

@article{Hernndez1999TheDZ,
  title={The decay Z -> neutrino antineutrino photon in the Standard Model},
  author={J. M. Hern{\'a}ndez and M. A. P{\'e}rez and G. Tavares-Velasco and J. Jes'us Toscano},
  journal={Physical Review D},
  year={1999}
}
A complete study of the one-loop induced decay Z -> neutrino antineutrino photon is presented within the framework of the Standard Model. The advantages of using a nonlinear gauge are stressed. We have found that the main contributions come from the electric dipole and the magnetic dipole transitions of the Z gauge boson and the neutrino, respectively. We obtain a branching ratio B=7.16E-10, which is about four orders of magnitude smaller than the bound recentely obtained by the L3… 
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