Review of sterile neutrino searches at very short-baseline reactor experiments

Abstract

Search for New Physics beyond the Standard Model is the main direction in particle physics nowadays. There are several experimental hints of New Physics. The most statistically significant (5-6$\sigma$) are the hints of eV mass scale sterile neutrinos. They come from antineutrino disappearance in reactor experiments, ${\nu }_e$ disappearance in experiments with very powerful radioactive sources, and electron (anti)neutrino appearance in the muon (anti)neutrino beams. Very important results in this field were obtained in 2021 by the BEST, MicroBooNE, and Neutrino-4 collaborations as well as by several other experiments. However, the situation is still or maybe even more controversial. We review these indications of New Physics and prospects for the next few years with the emphasis on reactor experiments.

References in corpus (61)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Evidence for oscillation of atmospheric neutrinos
• A Unified Approach to the Classical Statistical Analysis of Small Signals
• Measurement of the rate of nu_e + d --> p + p + e^- interactions produced by 8B solar neutrinos at the Sudbury Neutrino Observatory
• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm
• The Reactor Antineutrino Anomaly
• Precision Electroweak Measurements on the Z Resonance
• Improved Predictions of Reactor Antineutrino Spectra
• On the determination of anti-neutrino spectra from nuclear reactors
• Evidence for ${\bar{\nu }}_{\mu }\to {\bar{\nu }}_e$ Oscillations from the LSND Experiment at LAMPF
• Improved Search for ${\bar{\nu }}_{\mu }\to {\bar{\nu }}_e$ Oscillations in the MiniBooNE Experiment
• A Search for Electron Neutrino Appearance at the Delta m**2 ~ 1 eV**2 Scale
• Reanalysis of the GALLEX solar neutrino flux and source experiments
• Significant Excess of ElectronLike Events in the MiniBooNE Short-Baseline Neutrino Experiment
• Statistical Significance of the Gallium Anomaly
• Unexplained Excess of Electron-Like Events From a 1-GeV Neutrino Beam
• Updated global analysis of neutrino oscillations in the presence of eV-scale sterile neutrinos
• Sterile neutrino search at NEOS Experiment
• Upper limits for neutrino oscillations muon-antineutrino to electron-antineutrino from muon decay at rest
• Measurement of the response of a Ga solar neutrino experiment to neutrinos from an 37Ar source
• Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay
• Updated Global 3+1 Analysis of Short-BaseLine Neutrino Oscillations
• Updated MiniBooNE Neutrino Oscillation Results with Increased Data and New Background Studies
• Search for nu(mu)-->nu(e) Oscillations in the NOMAD Experiment
• Search for sterile neutrinos at the DANSS experiment
• Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay
• Improved measurements of the neutrino mixing angle ${\theta }_{13}$ with the Double Chooz detector
• Search for sterile neutrinos in MINOS and MINOS+ using a two-detector fit
• Results from the Baksan Experiment on Sterile Transitions (BEST)
• The Short-Baseline Neutrino Program at Fermilab
• First search for short-baseline neutrino oscillations at HFIR with PROSPECT
• Updated Summation Model: An Improved Agreement with the Daya Bay Antineutrino Fluxes
• Improved Short-Baseline Neutrino Oscillation Search and Energy Spectrum Measurement with the PROSPECT Experiment at HFIR
• Experiment Neutrino-4 search for sterile neutrino and results of measurements
• Improved Sterile Neutrino Constraints from the STEREO Experiment with 179 Days of Reactor-On Data
• Tests of lepton universality using $B^0\to K_S^0{\ell }^{+}{\ell }^{-}$ and $B^{+}\to K^{\ast +}{\ell }^{+}{\ell }^{-}$ decays
• A Search for Electron Neutrino Transitions to Sterile States in the BEST Experiment
• Reactor antineutrino anomaly in light of recent flux model refinements
• An eV-scale sterile neutrino search using eight years of atmospheric muon neutrino data from the IceCube Neutrino Observatory
• First-forbidden transitions in the reactor anomaly
• First-forbidden transitions in the reactor anomaly
• New Results from RENO and The 5 MeV Excess
• Model-Independent ${\bar{\nu }}_e$ Short-Baseline Oscillations from Reactor Spectral Ratios
• Reevaluating reactor antineutrino spectra with new measurements of the ratio between ${}^{235}$U and ${}^{239}$Pu $\beta$ spectra
• Fuel-composition dependent reactor antineutrino yield at RENO
• Improved Constraints on Sterile Neutrino Mixing from Disappearance Searches in the MINOS, MINOS+, Daya Bay, and Bugey-3 Experiments
• MicroBooNE and the ${\nu }_e$ Interpretation of the MiniBooNE Low-Energy Excess
• Sterile neutrino self-interactions: $H_0$ tension and short-baseline anomalies
• The Gaussian CL${}_s$ Method for Searches of New Physics
• Statistical significance of the sterile-neutrino hypothesis in the context of reactor and gallium data
• Sterile Neutrinos and the Global Reactor Antineutrino Dataset
• Neutrino-4 anomaly: oscillations or fluctuations?
• The JSNS^2 Detector
• Bound on 3+1 active-sterile neutrino mixing from the first four-week science run of KATRIN
• BEST Impact on Sterile Neutrino Hypothesis
• SoLid: A short baseline reactor neutrino experiment
• Search for Sub-eV Sterile Neutrino at RENO
• The analysis of the results of the Neutrino-4 experiment on search for sterile neutrino and comparison with results of other experiments
• Statistical Significance of Reactor Antineutrino Active-Sterile Oscillations
• Searches for sterile neutrinos at very short baseline reactor experiments

Cited by in corpus (1)

• Baseline and other effects for a sterile neutrino at DUNE