Charged lepton interactions

Neutrinos With Z3 Symmetry and New Charged-Lepton Interactions

An approximate Z3 family symmetry is proposed for leptons which results in a neutrino mass matrix with sin 2θatm = 1 and tan 2 θsol = 0.5, but the latter value could easily be smaller. A generic requirement of this approach is the appearance of three Higgs doublets at the electroweak scale, resulting in possibly observable flavor violating leptonic decays, such as μ → eee and μ → eγ. ——————————...

Methods of Testing Lepton Universality using Charged Current Weak Interactions

Charged lepton flavor violation beyond minimal supersymmetry

We discuss charged lepton flavor violation in supersymmetric models with extended leptonic sectors at low energies. Contrary to the usual high-scale realizations of the seesaw mechanism, these non-minimal supersymmetric models have new superfields and/or interactions at the supersymmetric scale. As a consequence of this, the resulting lepton flavor violating phenomenology may be very different ...

Yukawaons in the Charged Lepton Sector

In the so-called Yukawaon model, the effective Yukawa coupling constants Y eff f (f = e, ν, u, d) are given by vacuum expectation values (VEVs) of gauge singlet scalars (Yukawaons) Yf with 3× 3 components, i.e. Y eff f = yf 〈Yf 〉/Λ, where Λ is an energy scale of the effective theory. In order to reveal characteristic features of the model, VEV structures and possible massless Yukawaons are inve...

Inelastic Charged - Lepton Scattering off Nucleons * _ Clemens