https://doi.org/10.1140/epjs/s11734-021-00294-8
Regular Article
Flavor changing neutral couplings for leptons
Department of Physics, TU Dortmund, 44221, Dortmund, Germany
Received:
6
July
2021
Accepted:
19
September
2021
Published online:
2
December
2021
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.
© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2021
