Search for hep solar neutrinos and the diffuse supernova neutrino background using all three phases of the Sudbury Neutrino Observatory

A search has been performed for neutrinos from two sources, the hep reaction in the solar 𝑝⁢𝑝 fusion chain and the 𝜈𝑒 component of the diffuse supernova neutrino background (DSNB), using the full dataset of the Sudbury Neutrino Observatory with a total exposure of 2.47 kton−years after fiducializati...

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Main Authors: Aharmim, Bassam (Author) , Ahmed, S. N. (Author) , Anthony, A. E. (Author) , Barros, N. (Author) , Beier, E. W. (Author) , Bellerive, A. (Author) , Beltran, B. (Author) , Bergevin, M. (Author) , Biller, S. D. (Author) , Blucher, E. (Author) , Bonventre, R. (Author) , Boudjemline, K. (Author) , Boulay, M. G. (Author) , Cai, B. (Author) , Callaghan, E. J. (Author) , Caravaca, J. (Author) , Chan, Y. D. (Author) , Chauhan, D. (Author) , Chen, M. (Author) , Cleveland, B. T. (Author) , Cox, G. A. (Author) , Dai, X. (Author) , Deng, H. (Author) , Descamps, F. B. (Author) , Detwiler, J. A. (Author) , Doe, P. J. (Author) , Doucas, G. (Author) , Drouin, P.-L. (Author) , Dunford, Monica (Author) , Elliott, S. R. (Author) , Evans, H. C. (Author) , Ewan, G. T. (Author) , Farine, J. (Author) , Fergani, H. (Author) , Fleurot, F. (Author) , Ford, R. J. (Author) , Formaggio, J. A. (Author) , Gagnon, N. (Author) , Gilje, K. (Author) , Goon, J. TM. (Author) , Graham, K. (Author) , Guillian, E. (Author) , Habib, S. (Author) , Hahn, R. L. (Author) , Hallin, A. L. (Author) , Hallman, E. D. (Author) , Harvey, P. J. (Author) , Hazama, R. (Author) , Heintzelman, W. J. (Author) , Heise, J. (Author) , Helmer, R. L. (Author) , Hime, A. (Author) , Howard, C. (Author) , Huang, M. (Author) , Jagam, P. (Author) , Jamieson, B. (Author) , Jelley, N. A. (Author) , Jerkins, M. (Author) , Keeter, K. J. (Author) , Klein, J. R. (Author) , Kormos, L. L. (Author) , Kos, M. (Author) , Kraus, C. (Author) , Krauss, C. B. (Author) , Krüger, A. (Author) , Kutter, T. (Author) , Kyba, C. C. M. (Author) , Labe, K. (Author) , Land, B. J. (Author) , Lange, R. (Author) , LaTorre, A. (Author) , Law, J. (Author) , Lawson, I. T. (Author) , Lesko, K. T. (Author) , Leslie, J. R. (Author) , Levine, I. (Author) , Loach, J. C. (Author) , MacLellan, R. (Author) , Majerus, S. (Author) , Mak, H. B. (Author) , Maneira, J. (Author) , Martin, R. D. (Author) , Mastbaum, A. (Author) , McCauley, N. (Author) , McDonald, A. B. (Author) , McGee, S. R. (Author) , Miller, M. L. (Author) , Monreal, B. (Author) , Monroe, J. (Author) , Nickel, B. G. (Author) , Noble, A. J. (Author) , O’Keeffe, H. M. (Author) , Oblath, N. S. (Author) , Okada, C. E. (Author) , Ollerhead, R. W. (Author) , Orebi Gann, G. D. (Author) , Oser, S. M. (Author) , Ott, R. A. (Author) , Peeters, S. J. M. (Author) , Poon, A. W. P. (Author) , Prior, G. (Author) , Reitzner, S. D. (Author) , Rielage, K. (Author) , Robertson, B. C. (Author) , Robertson, R. G. H. (Author) , Schwendener, M. H. (Author) , Secrest, J. A. (Author) , Seibert, S. R. (Author) , Simard, O. (Author) , Sinclair, D. (Author) , Skensved, P. (Author) , Sonley, T. J. (Author) , Stonehill, L. C. (Author) , Tešić, G. (Author) , Tolich, N. (Author) , Tsui, T. (Author) , Berg, R. van (Author) , VanDevender, B. A. (Author) , Virtue, C. J. (Author) , Wall, B. L. (Author) , Waller, D. (Author) , Wan Chan Tseung, H. (Author) , Wark, D. L. (Author) , Wendland, J. (Author) , West, N. (Author) , Wilkerson, J. F. (Author) , Wilson, J. R. (Author) , Winchester, T. (Author) , Wright, A. (Author) , Yeh, M. (Author) , Zhang, F. (Author) , Zuber, K. (Author)
Corporate Author: SNO Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 29 September 2020
In: Physical review
Year: 2020, Volume: 102, Issue: 6, Pages: 1-12
ISSN:2470-0029
DOI:10.1103/PhysRevD.102.062006
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevD.102.062006
Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.102.062006
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Author Notes:B. Aharmim, S.N. Ahmed, A.E. Anthony, N. Barros, E.W. Beier, A. Bellerive, B. Beltran, M. Bergevin, S.D. Biller, E. Blucher, R. Bonventre, K. Boudjemline, M.G. Boulay, B. Cai, E.J. Callaghan, J. Caravaca, Y.D. Chan, D. Chauhan, M. Chen, B.T. Cleveland, G.A. Cox, X. Dai, H. Deng, F.B. Descamps, J.A. Detwiler, P.J. Doe, G. Doucas, P.-L. Drouin, M. Dunford, S.R. Elliott, H.C. Evans, G.T. Ewan, J. Farine, H. Fergani, F. Fleurot, R.J. Ford, J.A. Formaggio, N. Gagnon, K. Gilje, J.TM. Goon, K. Graham, E. Guillian, S. Habib, R.L. Hahn, A.L. Hallin, E.D. Hallman, P. J. Harvey, R. Hazama, W.J. Heintzelman, J. Heise, R.L. Helmer, A. Hime, C. Howard, M. Huang, P. Jagam, B. Jamieson, N.A. Jelley, M. Jerkins, K.J. Keeter, J.R. Klein, L.L. Kormos, M. Kos, C. Kraus, C.B. Krauss, A. Krüger, T. Kutter, C.C.M. Kyba, K. Labe, B.J. Land, R. Lange, A. LaTorre, J. Law, I.T. Lawson, K.T. Lesko, J.R. Leslie, I. Levine, J.C. Loach, R. MacLellan, S. Majerus, H.B. Mak, J. Maneira, R.D. Martin, A. Mastbaum, N. McCauley, A.B. McDonald, S.R. McGee, M.L. Miller, B. Monreal, J. Monroe, B.G. Nickel, A.J. Noble, H.M. O’Keeffe, N.S. Oblath, C.E. Okada, R.W. Ollerhead, G.D. Orebi Gann, S.M. Oser, R.A. Ott, S.J.M. Peeters, A.W.P. Poon, G. Prior, S.D. Reitzner, K. Rielage, B.C. Robertson, R.G.H. Robertson, M.H. Schwendener, J.A. Secrest, S.R. Seibert, O. Simard, D. Sinclair, P. Skensved, T.J. Sonley, L.C. Stonehill, G. Tešić, N. Tolich, T. Tsui, R. Van Berg, B.A. VanDevender, C.J. Virtue, B.L. Wall, D. Waller, H. Wan Chan Tseung, D.L. Wark, J. Wendland, N. West, J.F. Wilkerson, J.R. Wilson, T. Winchester, A. Wright, M. Yeh, F. Zhang, K. Zuber (SNO Collaboration)
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Summary:A search has been performed for neutrinos from two sources, the hep reaction in the solar 𝑝⁢𝑝 fusion chain and the 𝜈𝑒 component of the diffuse supernova neutrino background (DSNB), using the full dataset of the Sudbury Neutrino Observatory with a total exposure of 2.47 kton−years after fiducialization. The hep search is performed using both a single-bin counting analysis and a likelihood fit. We find a best-fit flux that is compatible with solar model predictions while remaining consistent with zero flux, and set a one-sided upper limit of Φℎ⁡𝑒⁢𝑝<30×103 cm−2 s−1 [90% credible interval (CI)]. No events are observed in the DSNB search region, and we set an improved upper bound on the 𝜈𝑒 component of the DSNB flux of ΦDSNB𝜈𝑒<19 cm−2 s−1 (90% CI) in the energy range 22.9 <𝐸𝜈 <36.9 MeV.
Item Description:Gesehen am 11.08.2025
Physical Description:Online Resource
ISSN:2470-0029
DOI:10.1103/PhysRevD.102.062006