Resolution of puzzles from the LSND, KARMEN, and MiniBooNE experiments

Abstract

This work has attempted to reconcile puzzling neutrino oscillation results from the LSND, KARMEN and MiniBooNE experiments. We show that the LSND evidence for ${\bar{\nu }}_{\mu }\to {\bar{\nu }}_e$ oscillations, its long-standing disagreement with the results from KARMEN, and the anomalous event excess observed by MiniBooNE in ${\nu }_{\mu }$ and ${\bar{\nu }}_{\mu }$ data could all be explained by the existence of a heavy sterile neutrino (${\nu }_h$). All these results are found to be consistent with each other assuming that the ${\nu }_h$ is created in ${\nu }_{\mu }$ neutral-current interactions and decays radiatively into a photon and a light neutrino. Assuming the ${\nu }_h$ is produced through mixing with ${\nu }_{\mu }$, the combined analysis of the LSND and MiniBooNe excess events suggests that the ${\nu }_h$ mass is in the range from 40 to 80 MeV, the mixing strength is $|U_{\mu h}{|}^2\simeq 10^{-3}-10^{-2}$, and the lifetime is ${\tau }_{{\nu }_h}\lesssim 10^{-9}$ s. Surprisingly, this LSND-MiniBooNE parameters window is found to be unconstrained by the results from the most sensitive experiments searching for heavy neutrino. We set new limits on $|U_{\mu h}{|}^2$ for the LSND-MiniBooNE favorable mass region from the precision measurements of the Michel spectrum by the TWIST experiment. The results obtained provide a strong motivation for a sensitive search for the ${\nu }_h$ in a near future $K$ decay or neutrino experiments, which fit well in the existing/planned experimental programs at CERN or FNAL. The question of whether the heavy neutrino is Dirac or Majorana particle is briefly discussed.

arXiv comment24 pages, 28 figures, version to appear in PRD

References in corpus (37)

• Evidence for Neutrino Oscillations from the Observation of Electron Anti-neutrinos in a Muon Anti-Neutrino Beam
• The Search for Heavy Majorana Neutrinos
• Evidence for ${\bar{\nu }}_{\mu }\to {\bar{\nu }}_e$ Oscillations from the LSND Experiment at LAMPF
• Evidence for nu_mu -> nu_e Neutrino Oscillations from LSND
• Neutrinos in cosmology
• A Search for Electron Neutrino Appearance at the Delta m**2 ~ 1 eV**2 Scale
• Event Excess in the MiniBooNE Search for ${\bar{\nu }}_{\mu }\to {\bar{\nu }}_e$ Oscillations
• Unexplained Excess of Electron-Like Events From a 1-GeV Neutrino Beam
• Upper limits for neutrino oscillations muon-antineutrino to electron-antineutrino from muon decay at rest
• How to find neutral leptons of the nuMSM?
• Measurement of electron-neutrino electron elastic scattering
• Evidence for nu_mu -> nu_e Oscillations from Pion Decay in Flight Neutrinos
• Evidence for Neutrino Oscillations from Muon Decay at Rest
• Heavy sterile neutrinos: Bounds from big-bang nucleosynthesis and SN 1987A
• The Liquid Scintillator Neutrino Detector and LAMPF Neutrino Source
• The MiniBooNE Detector
• Search for heavy neutrinos mixing with tau neutrinos
• The MiniBooNE anomaly and heavy neutrino decay
• Explaining LSND by a decaying sterile neutrino
• Bounds on heavy sterile neutrinos revisited
• Relativistic models for quasi-elastic neutrino scattering
• Anomaly mediated neutrino-photon interactions at finite baryon density
• A Search for Electron Antineutrino Appearance at the $\Delta m^2\sim$ 1 ${\mathrm{eV}}^2$ Scale
• Cosmological and astrophysical bounds on a heavy sterile neutrino and the KARMEN anomaly
• Measurements of the reactions 12C + nu_e -> e- + 12N g.s. and 12C + nu_e -> e- + 12N
• The extended-track reconstruction for MiniBooNE
• Measurements of Charged Current Reactions of muon neutrinos on C12
• Standard Model Gauging of the WZW Term: Anomalies, Global Currents and pseudo-Chern-Simons Interactions
• Limits on the magnetic moment of sterile neutrino and two-photon neutrino decay
• Search for a new gauge boson in ${\pi }^0$ decays
• A Measurement of Coherent Neutral Pion Production in Neutrino Neutral Current Interactions in NOMAD
• Extending Sensitivity for Low-Mass Neutral Heavy Lepton Searches
• The MiniBooNE anomaly, the decay Ds -> mu+nu and heavy sterile neutrino
• Quasielastic neutrino-nucleus scattering
• MicroBooNE: A New Liquid Argon Time Projection Chamber Experiment
• Light Unstable Sterile Neutrino
• Hierarchical Four-Neutrino Oscillations With a Decay Option

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