On a Latent Structure of Lepton Universality
  The mass of an electroweakly charged lepton consists of the two components of electric and weak nature, and regardless of the difference in masses, all leptons have an equal charge, the same charge radius as well as an identical magnetic moment. Between these currents there appear the most diverse connections, for example, in their interactions with an electroweak field of spinless nuclei. We derive the united equations which relate the structural parts of mass to charge, charge radius and magnetic moment of each lepton as a consequence of the ideas of flavor symmetry laws. Therefore, these ideas require the verification of the lepton universality from the point of view of a constancy of the size implied from the multiplication of a weak mass of lepton by its electric mass. Such a principle gives the possibility to define the lepton weak masses. If this picture does not change, leptons universally interact not only with the photon or the weak boson but also with any of the corresponding types of gauge fields. 
Rasulkhozha S. Sharafiddinov