Can lepton flavor violating interactions explain the LSND results?

Abstract

If the atmospheric and the solar neutrino problem are both explained by neutrino oscillations, and if there are only three light neutrinos, then all mass-squared differences between the neutrinos are known. In such a case, existing terrestrial neutrino oscillation experiments cannot be significantly affected by neutrino oscillations, but, in principle there could be an anomaly in the neutrino flux due to new neutrino interactions. We discuss how a non-standard muon decay ${\mu }^{+}\to e^{+}{\bar{\nu }}_e{\nu }_{\ell }$ would modify the neutrino production processes of these experiments. Since $SU(2{)}_L$ violation is small for New Physics above the weak scale one can use related flavor-violating charged lepton processes to constrain these decays in a model independent way. We show that the upper bounds on $\mu \to 3e$, muonium-antimuonium conversion and $\tau \to \mu ee$ rule out any observable effect for the present experiments due to ${\mu }^{+}\to e^{+}{\bar{\nu }}_e{\nu }_{\ell }$ for $\ell =e,\mu ,\tau$, respectively. Applying similar arguments to flavor-changing semi-leptonic reactions we exclude the possibility that the "oscillation signals" observed at LSND are due to flavor-changing interactions that conserve total lepton number.

21 pages, 6 figures, Latex; minor corrections

References in corpus (13)

• Evidence for oscillation of atmospheric neutrinos
• Initial Results from the CHOOZ Long Baseline Reactor Neutrino Oscillation Experiment
• Evidence for nu_mu -> nu_e Neutrino Oscillations from LSND
• Where do we stand with solar neutrino oscillations?
• Super-Kamiokande atmospheric neutrino data, zenith distributions, and three-flavor oscillations
• Variations on Four-Neutrino Oscillations
• A Mechanism for Ordinary-Sterile Neutrino Mixing
• Neutrino - Modulino Mixing
• The Solar Neutrino Problem in the Presence of Flavor Changing Neutrino Interactions
• Interpreting the Atmospheric Neutrino Anomaly
• Grand Unification of the Sterile Neutrino
• Fitting direct interaction pieces into neutrino puzzles
• Supernova neutrinos in the light of FCNC

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