Testing neutrino mass matrices with approximate Le–Lμ–Lτ symmetry
| Autor: | Rabindra N. Mohapatra, S. P. Ng, H. S. Goh |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics Astrophysics::High Energy Astrophysical Phenomena Solar neutrino High Energy Physics::Phenomenology Mass matrix 01 natural sciences Upper and lower bounds Symmetry (physics) Matrix (mathematics) 0103 physical sciences High Energy Physics::Experiment Neutrino 010306 general physics Neutrino oscillation Lepton |
| Zdroj: | Physics Letters B. 542:116-122 |
| ISSN: | 0370-2693 |
| Popis: | As neutrino experiments are starting to probe the detailed structure of the neutrino mass matrix, we present sumrules relating its matrix elements for a class of models with approximate $L_e-L_{\mu}-L_{\tau}$ symmetry and the observables in neutrino oscillation experiments. We show that regardless of how the above symmetry is broken (whether in the neutrino sector or the charged lepton sector), as long as the breaking terms are small, there is a lower bound on the solar neutrino mixing angle, $sin^22\theta_{\odot}$, correlated with the solar mass difference square, $\Delta m^2_{\odot}$, or the mixing parameter, $U_{e3}$. We also discuss models where such patterns can arise. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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