Evidence of Antineutrinos from Distant Reactors Using Pure Water at SNO

Evidence of Antineutrinos from Distant Reactors Using Pure Water at SNO

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 analytic...

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Veröffentlicht in:Physical review letters 2023-03, Vol.130 (9), p.091801-091801, Article 091801
Hauptverfasser: Allega, A, Anderson, M R, Andringa, S, Antunes, J, Askins, M, Auty, D J, Bacon, A, Barros, N, Barão, F, Bayes, R, Beier, E W, Bezerra, T S, Bialek, A, Biller, S D, Blucher, E, Caden, E, Callaghan, E J, Cheng, S, Chen, M, Cleveland, B, Cookman, D, Corning, J, Cox, M A, Dehghani, R, Deloye, J, Deluce, C, Depatie, M M, Dittmer, J, Dixon, K H, Di Lodovico, F, Falk, E, Fatemighomi, N, Ford, R, Frankiewicz, K, Gaur, A, González-Reina, O I, Gooding, D, Grant, C, Grove, J, Hallin, A L, Hallman, D, Heintzelman, W J, Helmer, R L, Hu, J, Hunt-Stokes, R, Hussain, S M A, Inácio, A S, Jillings, C J, Kaluzienski, S, Kaptanoglu, T, Khaghani, P, Khan, H, Klein, J R, Kormos, L L, Krar, B, Kraus, C, Krauss, C B, Kroupová, T, Lam, I, Land, B J, Lawson, I, Lebanowski, L, Lee, J, Lefebvre, C, Lidgard, J, Lin, Y H, Lozza, V, Luo, M, Maio, A, Manecki, S, Maneira, J, Martin, R D, McCauley, N, McDonald, A B, Mills, C, Morton-Blake, I, Naugle, S, Nolan, L J, O'Keeffe, H M, Orebi Gann, G D, Page, J, Parker, W, Paton, J, Peeters, S J M, Pickard, L, Ravi, P, Reichold, A, Riccetto, S, Richardson, R, Rigan, M, Rose, J, Rosero, R, Rumleskie, J, Semenec, I, Skensved, P, Smiley, M, Svoboda, R, Tam, B, Tseng, J, Turner, E
Format: Artikel
Sprache:eng
Schlagworte:
Cherenkov detectors
Neutrinos
Nuclear reactors
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Zusammenfassung: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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.130.091801