In the current theory, neutrino oscillations require that the masses of neutrinos are non-vanishing. By analogy with the oscillation of quantum two-state system, we assume that neutrino oscillations may be regarded as quantum tunneling process. The difference of the quantum numbers between two particles may be regarded as a barrier between them. Thus neutrinos with vanishing mass can also oscillate. The hypothesis can also be applied to quark mixing, flavor violation of charged leptons, CP violation of neutral-kaon system, neutral meson mixing and electroweak mixing.
Categories: physics.gen-ph