Evidence of Antineutrinos from Distant Reactors using Pure Water at SNO+

Abstract

The SNO+ Collaboration reports the first evidence of reactor antineutrinos in a Cherenkov detector. The nearest nuclear reactors are located 240~km away in Ontario, Canada. This analysis uses events with energies lower than in any previous analysis with a large water Cherenkov detector. Two analytical methods are used to distinguish reactor antineutrinos from background events in 190 days of data and yield consistent evidence for antineutrinos with a combined significance of 3.5$\sigma$.

v2: add missing author, add link to supplemental material v3: minor updates to match PRL publication

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Cited by in corpus (10)

• Solar fusion III: New data and theory for hydrogen-burning stars
• Stellar Neutrino Emission Across The Mass-Metallicity Plane
• Production of pentaquarks with hidden charm and double strangeness in ${\Xi }_b$ and ${\Omega }_b$ decays
• Initial measurement of reactor antineutrino oscillation at SNO+
• Environmental radon control in the 700-m underground laboratory at JUNO
• Measurement of reactor antineutrino oscillation at SNO+
• Measurement of the ${}^8$B Solar Neutrino Flux Using the Full SNO+ Water Phase Dataset
• Directional Response of Several Geometries for Reactor-Neutrino Detectors
• Water-based Quantum Dots Liquid Scintillator for Particle Physics
• Canadian Contributions to the Search for Neutrinoless Double Beta Decay