Independent Measurement of Theta13 via Neutron Capture on Hydrogen at Daya Bay

Abstract

A new measurement of the ${\theta }_{13}$ mixing angle has been obtained at the Daya Bay Reactor Neutrino Experiment via the detection of inverse beta decays tagged by neutron capture on hydrogen. The antineutrino events for hydrogen capture are distinct from those for gadolinium capture with largely different systematic uncertainties, allowing a determination independent of the gadolinium-capture result and an improvement on the precision of ${\theta }_{13}$ measurement. With a 217-day antineutrino data set obtained with six antineutrino detectors and from six 2.9 GW${}_{th}$ reactors, the rate deficit observed at the far hall is interpreted as ${\sin }^{2}2{\theta }_{13}=0.083\pm 0.018$ in the three-flavor oscillation model. When combined with the gadolinium-capture result from Daya Bay, we obtain ${\sin }^{2}2{\theta }_{13}=0.089\pm 0.008$ as the final result for the six-antineutrino-detector configuration of the Daya Bay experiment.

References in corpus (24)

• First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
• Observation of electron-antineutrino disappearance at Daya Bay
• Observation of Reactor Electron Antineutrino Disappearance in the RENO Experiment
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• Indication for the disappearance of reactor electron antineutrinos in the Double Chooz experiment
• Improved Predictions of Reactor Antineutrino Spectra
• On the determination of anti-neutrino spectra from nuclear reactors
• Improved search for muon-neutrino to electron-neutrino oscillations in MINOS
• Observation of Electron Neutrino Appearance in a Muon Neutrino Beam
• Reactor electron antineutrino disappearance in the Double Chooz experiment
• Improved Measurement of Electron Antineutrino Disappearance at Daya Bay
• Constraints on ${\theta }_{13}$ from A Three-Flavor Oscillation Analysis of Reactor Antineutrinos at KamLAND
• Spectral measurement of electron antineutrino oscillation amplitude and frequency at Daya Bay
• Measurement of the neutrino mass splitting and flavor mixing by MINOS
• Systematic Uncertainties in the Analysis of the Reactor Neutrino Anomaly
• Electron neutrino and antineutrino appearance in the full MINOS data sample
• The LMA MSW Solution of the Solar Neutrino Problem, Inverted Neutrino Mass Hierarchy and Reactor Neutrino Experiments
• A side-by-side comparison of Daya Bay antineutrino detectors
• New antineutrino energy spectra predictions from the summation of beta decay branches of the fission products
• Supernova Relic Neutrino Search with Neutron Tagging at Super-Kamiokande-IV
• Determination of the Neutrino Mass Hierarchy at an Intermediate Baseline
• First Measurement of θ_13 from Delayed Neutron Capture on Hydrogen in the Double Chooz Experiment
• Precision Neutrino Oscillation Physics with an Intermediate Baseline Reactor Neutrino Experiment
• Determination of Neutrino Mass Hierarchy and Theta_13 with a Remote Detector of Reactor Antineutrinos

Cited by in corpus (28)

• A new measurement of antineutrino oscillation with the full detector configuration at Daya Bay
• Measurement of electron antineutrino oscillation based on 1230 days of operation of the Daya Bay experiment
• Neutrino Mass Hierarchy
• Nonzero ${\theta }_{13}$ and Leptogenesis in a Type-I See-saw Model with $A_4$ Symmetry
• An overview of the Daya Bay Reactor Neutrino Experiment
• New measurement of ${\theta }_{13}$ via neutron capture on hydrogen at Daya Bay
• Missing energy and the measurement of the CP-violating phase in neutrino oscillations
• Physics with Reactor Neutrinos
• Determination of the total absorption peak in an electromagnetic calorimeter
• Spontaneous CP Violation in Lepton-sector: a common origin for ${\theta }_{13}$, Dirac CP phase and leptogenesis
• Search for a time-varying electron antineutrino signal at Daya Bay
• Constraints on Large Extra Dimensions from the MINOS Experiment
• Revealing Fundamental Physics from the Daya Bay Neutrino Experiment using Deep Neural Networks
• Design, characterization, and sensitivity of the supernova trigger system at Daya Bay
• Recent Results From The Daya Bay Experiment
• Measurement of Electron Antineutrino Oscillation Amplitude and Frequency via Neutron Capture on Hydrogen at Daya Bay
• Some new progress on the light absorption properties of linear alkyl benzene solvent
• Performance of the 1-ton Prototype Neutrino Detector at CJPL-I
• Trimaximal Mixing and Extended Magic Symmetry in a Model of Neutrino Mass Matrix
• The possibility of leptonic CP-violation measurement with JUNO
• Type II seesaw supersymmetric neutrino model for ${\theta }_{13}\ne 0$
• A Precise Calculation of Delayed Coincidence Selection Efficiency and Accidental Coincidence Rate
• Revisiting T2KK and T2KO physics potential and ${\nu }_{\mu }$ - ${\bar{\nu }}_{\mu }$ beam ratio
• Hybrid seesaw neutrino model in SUSY $SU(5)\times {\mathbb{A}}_4$
• Observation of Reactor Antineutrino Disappearance Using Delayed Neutron Capture on Hydrogen at RENO
• Prospects for Reconstruction of Leptonic Unitarity Quadrangle and Neutrino Oscillation Experiments
• A Decade of Discoveries by the Daya Bay Reactor Neutrino Experiment
• Search For Electron-Antineutrinos Associated With Gravitational-Wave Events GW150914, GW151012, GW151226, GW170104, GW170608, GW170814, and GW170817 at Daya Bay