Abstract
The article reviews the conditions for lepton-flavor conservation in leptonic interactions. The conditions are similar to those developed in the quark sector. For neutrinos the mass eigenstates are unitary superpositions of flavor states which together with small mass differences produce neutrino oscillations. A new property for neutrinos is the fact that their masses are very small suppressing their couplings to neutral scalar fields. The results are demonstrated in several models.
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Acknowledgements
I wish to thank Dr. I. Alikhanov for help in preparation of the article. This is a report for work in progress and may develop into a larger article.
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Paschos, E.A. Flavor changing neutral couplings for leptons. Eur. Phys. J. Spec. Top. 230, 4405–4408 (2021). https://doi.org/10.1140/epjs/s11734-021-00294-8
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DOI: https://doi.org/10.1140/epjs/s11734-021-00294-8