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

Research output: Contribution to Journal/MagazineJournal articlepeer-review

  • (The SNO+ Collaboration)
Article number091801
<mark>Journal publication date</mark>1/03/2023
<mark>Journal</mark>Physical review letters
Issue number9
Number of pages8
Publication StatusPublished
<mark>Original language</mark>English


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 3.5σ.