Reactor antineutrino flux and anomaly

Abstract

Reactor antineutrinos have played a significant role in establishing the standard model of particle physics and the theory of neutrino oscillations. In this article, we review the reactor antineutrino flux and in particular the reactor antineutrino anomaly (RAA) coined over a decade ago. RAA refers to a deficit of the measured antineutrino inverse beta decay rates at very short-baseline reactor experiments compared to the theoretically improved predictions (i.e. the Huber-Mueller model). Since the resolution of several previous experimental anomalies have led to the discovery of non-zero neutrino mass and mixing, many efforts have been invested to study the origin of RAA both experimentally and theoretically. The progress includes the observation of discrepancies in antineutrino energy spectrum between data and the Huber-Mueller model, the re-evaluation of the Huber-Mueller model uncertainties, the potential isotope-dependent rate deficits, and the better agreement between data and new model predictions using the improved summation method. These developments disfavor the hypothesis of a light sterile neutrino as the explanation of RAA and supports the deficiencies of Huber-Mueller model as the origin. Looking forward, more effort from both the theoretical and experimental sides is needed to fully understand the root of RAA and to make accurate predictions of reactor antineutrino flux and energy spectrum for future discoveries.

arXiv comment64 pages, 23 figures, 7 tables

References in corpus (100)

• Evidence for oscillation of atmospheric neutrinos
• First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
• Observation of Reactor Electron Antineutrino Disappearance in the RENO Experiment
• The Reactor Antineutrino Anomaly
• Limits on Neutrino Oscillations from the CHOOZ Experiment
• Solar Models: current epoch and time dependences, neutrinos, and helioseismological properties
• Search for neutrino oscillations on a long base-line at the CHOOZ nuclear power station
• On the determination of anti-neutrino spectra from nuclear reactors
• Measurements of the Solar Neutrino Flux from Super-Kamiokande's First 300 Days
• Determination of Solar Neutrino Oscillation Parameters using 1496 Days of Super-Kamiokande-I Data
• Measurement of the solar neutrino capture rate with gallium metal. III: Results for the 2002--2007 data-taking period
• Measurement of the solar neutrino capture rate with gallium metal
• Reanalysis of the GALLEX solar neutrino flux and source experiments
• Significant Excess of ElectronLike Events in the MiniBooNE Short-Baseline Neutrino Experiment
• The angular distribution of the reaction ${\bar{\nu }}_e+p\to e^{+}+n$
• Design and Construction of the MicroBooNE Detector
• Precise quasielastic neutrino/nucleon cross section
• Unexplained Excess of Electron-Like Events From a 1-GeV Neutrino Beam
• Sterile neutrino search at NEOS Experiment
• Upper limits for neutrino oscillations muon-antineutrino to electron-antineutrino from muon decay at rest
• Neutrino mass limit from tritium beta decay
• Neutrino Mass Models
• Observation of Energy and Baseline Dependent Reactor Antineutrino Disappearance in the RENO Experiment
• Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay
• Measurement of Neutrino-Electron Scattering Cross-Section with a CsI(Tl) Scintillating Crystal Array at the Kuo-Sheng Nuclear Power Reactor
• Systematic Uncertainties in the Analysis of the Reactor Neutrino Anomaly
• Updated Global 3+1 Analysis of Short-BaseLine Neutrino Oscillations
• Search for nu(mu)-->nu(e) Oscillations in the NOMAD 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
• Production of Radioactive Isotopes through Cosmic Muon Spallation in KamLAND
• First Double Chooz ${\theta }_{13}$ Measurement via Total Neutron Capture Detection
• Search for sterile neutrinos in MINOS and MINOS+ using a two-detector fit
• Results from the Baksan Experiment on Sterile Transitions (BEST)
• Neutron Lifetime and Axial Coupling Connection
• eV-scale Sterile Neutrinos
• Reactor Neutrino Spectra
• Final results on the neutrino magnetic moment from the MUNU experiment
• Measurement of the flux and zenith-angle distribution of upward through-going muons in Kamiokande II+III
• New antineutrino energy spectra predictions from the summation of beta decay branches of the fission products
• Spectral Structure of Electron Antineutrinos from Nuclear Reactors
• 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
• Unitarity and the three flavour neutrino mixing matrix
• Experiment Neutrino-4 search for sterile neutrino and results of measurements
• Improved Measurement of the Reactor Antineutrino Flux and Spectrum at Daya Bay
• The Detector System of The Daya Bay Reactor Neutrino Experiment
• Experimental Determination of the Antineutrino Spectrum of the Fission Products of ${}^{238}$U
• Constraints on elastic neutrino nucleus scattering in the fully coherent regime from the CONUS experiment
• Measurement of Coherent Elastic Neutrino-Nucleus Scattering from reactor antineutrinos
• The Possible Origin and Implications of the Shoulder in Reactor Neutrino Spectra
• Online Monitoring of the Osiris Reactor with the Nucifer Neutrino Detector
• Reactor antineutrino anomaly in light of recent flux model refinements
• Reactor as a Source of Antineutrinos: Thermal Fission Energy
• First-forbidden transitions in the reactor anomaly
• First-forbidden transitions in the reactor anomaly
• Total Absorption Spectroscopy Study of ${}^{92}$Rb Decay: A Major Contributor to Reactor Antineutrino Spectrum Shape
• Reevaluating reactor antineutrino spectra with new measurements of the ratio between ${}^{235}$U and ${}^{239}$Pu $\beta$ spectra
• Stereo neutrino spectrum of 235U fission rejects sterile neutrino hypothesis
• Fuel-composition dependent reactor antineutrino yield at RENO
• The 5 MeV bump - a nuclear whodunit mystery
• Extraction of the ${}^{235}$U and ${}^{239}$Pu Antineutrino Spectra at Daya Bay
• Improved Constraints on Sterile Neutrino Mixing from Disappearance Searches in the MINOS, MINOS+, Daya Bay, and Bugey-3 Experiments
• Neutrino Oscillation Studies with Reactors
• Total Absorption Gamma-Ray Spectroscopy of 87Br, 88Br and 94Rb Beta-Delayed Neutron Emitters
• Beta-decay studies for applied and basic nuclear physics
• Sterile Neutrinos and the Global Reactor Antineutrino Dataset
• Data Unfolding with Wiener-SVD Method
• First constraints on light sterile neutrino oscillations from combined appearance and disappearance searches with the MicroBooNE detector
• Reactor Fuel Fraction Information on the Antineutrino Anomaly
• Observation of the Isotopic Evolution of Pressurized Water Reactor Fuel Using an Antineutrino Detector
• Search for sterile neutrino oscillation using RENO and NEOS data
• Enhanced Gamma-Ray Emission from Neutron Unbound States Populated in Beta Decay
• The KamLAND Full-Volume Calibration System
• Neutrino-4 anomaly: oscillations or fluctuations?
• Improved eV-scale Sterile-Neutrino Constraints from the Second KATRIN Measurement Campaign
• Total Absorption Spectroscopy Study of the Beta Decay of ${}^{86}$Br and ${}^{91}$Rb
• Diagnosing the Reactor Antineutrino Anomaly with Global Antineutrino Flux Data
• Effect of first forbidden decays on the shape of neutrino spectra
• Conversion of electron spectrum associated with fission into the antineutrino spectrum
• First antineutrino energy spectrum from ${}^{235}$U fissions with the STEREO detector at ILL
• Revealing Fine Structure in the Antineutrino Spectra From a Nuclear Reactor
• Physics with Reactor Neutrinos
• Prospects for Improved Understanding of Isotopic Reactor Antineutrino Fluxes
• First measurement of high-energy reactor antineutrinos at Daya Bay
• Accurate Measurement of the Electron Antineutrino Yield of U-235 Fissions from the STEREO Experiment with 119 Days of Reactor-On Data
• Antineutrino-Deuteron Experiment at Krasnoyrsk
• Characterization and performance of the DTAS detector
• Impact of Fission Neutron Energies on Reactor Antineutrino Spectra
• Total absorption $\gamma$-ray spectroscopy of niobium isomers
• Particle physics origin of the 5 MeV bump in the reactor antineutrino spectrum?
• Measurement of Reactor Antineutrino Flux and Spectrum at RENO
• Final Measurement of the U235 Antineutrino Energy Spectrum with the PROSPECT-I Detector at HFIR
• Improved Determination of the ${}^{235}\text{U}$ and ${}^{239}\text{Pu}$ Reactor Antineutrino Cross Sections per Fission
• Joint Measurement of the ${}^{235}$U Antineutrino Spectrum by Prospect and Stereo
• Total absorption $\gamma$-ray spectroscopy of the $\beta$-delayed neutron emitters ${}^{137}$I and ${}^{95}$Rb
• Muon capture on light isotopes in Double Chooz
• Improved Measurement of the Evolution of the Reactor Antineutrino Flux and Spectrum at Daya Bay
• Determination of Beta Decay Ground State Feeding of Nuclei of Importance for Reactor Applications
• Exploring Current Constraints on Antineutrino Production by ${}^{241}$Pu and Paths Towards the Precision Reactor Flux Era

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