Five models for lepton mixing

Large Lepton Flavor Mixing and E 6 -type Uniication Models

There are experimental indications of large avor mixing between and. In the uniication models, in which the massless sector includes extra particles beyond the standard model, there possibly appear the mixings between quarks (leptons) and the extra particles. When large mixings occur, lepton avor mixings can be quite diierent from quark avor mixings. By taking the string inspired SU (6) SU (2) ...

Large Lepton Flavor Mixing and E 6 - type Unification Models

There are experimental indications of large flavor mixing between νμ and ντ . In the unification models, in which the massless sector includes extra particles beyond the standard model, there possibly appear the mixings between quarks (leptons) and the extra particles. When large mixings occur, lepton flavor mixings can be quite different from quark flavor mixings. By taking the string inspired...

Lepton Mixing and Seesaw Mechanism

Solar Neutrinos and Lepton Mixing

With latest experimental data the solar neutrino problem enters new phase when crucial aspects of the problem can be formulated in an essentially (solar) model independent way. Original neutrino fluxes can be considered as free parameters to be found from the solar neutrino experiments. Resonance flavour conversion gives the best fit of all experimental results. Already existing data allow one ...

Neutrino mass spectrum and lepton mixing ∗

The program of reconstruction of the neutrino mass and flavor spectrum is outlined and the present status of research is summarized. We describe the role of future solar and atmospheric neutrino experiments, detection of the Galactic supernovae and double beta decay searches in accomplishing this program. The LSND result and four neutrino mass spectra are considered in connection with recent se...