Constraint on Neutrino Decay with Medium-Baseline Reactor Neutrino Oscillation Experiments
arXiv:1506.02314
Abstract
The experimental bound on lifetime of nu_3, the neutrino mass eigenstate with the smallest nu_e component, is much weaker than those of nu_1 and nu_2 by many orders of magnitude to which the astrophysical constraints apply. We argue that the future reactor neutrino oscillation experiments with medium-baseline (~ 50 km), such as JUNO or RENO-50, has the best chance of placing the most stringent constraint on nu_3 lifetime among all neutrino experiments which utilize the artificial source neutrinos. Assuming decay into invisible states, we show by a detailed chi^2 analysis that the nu_3 lifetime divided by its mass, tau_3/m_3, can be constrained to be tau_3/m_3 > 7.5 (5.5) x 10^{-11} s/eV at 95% (99%) C.L. by 100 kt.years exposure by JUNO. It may be further improved to the level comparable to the atmospheric neutrino bound by its longer run. We also discuss to what extent nu_3 decay affects mass-ordering determination and precision measurements of the mixing parameters.
arXiv comment23 pages, 6 figures, clarification of some discussions, added some references, no change in results and conclusions, version accepted for publication in JHEP
References in corpus (27)
- Evidence for High-Energy Extraterrestrial Neutrinos at the IceCube Detector
- Improved Predictions of Reactor Antineutrino Spectra
- On the determination of anti-neutrino spectra from nuclear reactors
- Updated fit to three neutrino mixing: status of leptonic CP violation
- Improved Measurement of Electron Antineutrino Disappearance at Daya Bay
- Spectral measurement of electron antineutrino oscillation amplitude and frequency at Daya Bay
- Atmospheric neutrino oscillation analysis with sub-leading effects in Super-Kamiokande I, II, and III
- Unambiguous Determination of the Neutrino Mass Hierarchy Using Reactor Neutrinos
- Decay of High-Energy Astrophysical Neutrinos
- A new measurement of antineutrino oscillation with the full detector configuration at Daya Bay
- Do solar neutrinos decay?
- A side-by-side comparison of Daya Bay antineutrino detectors
- Status of Oscillation plus Decay of Atmospheric and Long-Baseline Neutrinos
- Neutrino Decays over Cosmological Distances and the Implications for Neutrino Telescopes
- Neutrino Decay and Atmospheric Neutrinos
- Revising Limits on Neutrino-Majoron Couplings
- Statistical Evaluation of Experimental Determinations of Neutrino Mass Hierarchy
- Constraints on neutrino decay lifetime using long-baseline charged and neutral current data
- Neutrino mass hierarchy and electron neutrino oscillation parameters with one hundred thousand reactor events
- Solar Neutrinos and the Decaying Neutrino Hypothesis
- Mass Hierarchy Resolution in Reactor Anti-neutrino Experiments: Parameter Degeneracies and Detector Energy Response
- Constraints on decay plus oscillation solutions of the solar neutrino problem
- Neutrino Decay and Solar Neutrino Seasonal Effect
- Determination of the Neutrino Mass Hierarchy via the Phase of the Disappearance Oscillation Probability with a Monochromatic \barν_e Source
- Reactor Measurement of theta_12; Principles, Accuracies and Physics Potentials
- Strategies to link tiny neutrino masses with huge missing mass of the Universe
- Jiangmen Underground Neutrino Observatory
Cited by in corpus (6)
- On the Impact of Neutrino Decays on the Supernova Neutronization-Burst Flux
- Constraining the invisible neutrino decay with KM3NeT-ORCA
- Constraining Neutrino Lifetimes and Magnetic Moments via Solar Neutrinos in the Large Xenon Detectors
- Why matter effects matter for JUNO
- Exploring invisible neutrino decay at ESSnuSB
- Damping signatures at JUNO, a medium-baseline reactor neutrino oscillation experiment