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Measurement of the B-8 solar neutrino flux in SNO plus with very low backgrounds

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Measurement of the B-8 solar neutrino flux in SNO plus with very low backgrounds. / SNO Collaboration.

In: Physical Review D, Vol. 99, No. 1, 012012, 28.01.2019.

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SNO Collaboration. / Measurement of the B-8 solar neutrino flux in SNO plus with very low backgrounds. In: Physical Review D. 2019 ; Vol. 99, No. 1.

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@article{22bc1ce360a04b3ebbbba86f9e34a6b8,
title = "Measurement of the B-8 solar neutrino flux in SNO plus with very low backgrounds",
abstract = "A measurement of the B-8 solar neutrino flux has been made using a 69.2 kt-day dataset acquired with the SNO+ detector during its water commissioning phase. At energies above 6 MeV the dataset is an extremely pure sample of solar neutrino elastic scattering events, owing primarily to the detector's deep location, allowing an accurate measurement with relatively little exposure. In that energy region the best tit background rate is 0.25(-0.07)(+0.09) events/kt-day, significantly lower than the measured solar neutrino event rate in that energy range, which is 1.03(-0.12)(+0.13) events/kt-day. Also using data below this threshold, don to 5 MeV, fits of the solar neutrino event direction yielded an observed flux of 2.51(-0.28)(+0.31)(stat)(-0.10)(+0.13)(syst) x 10(6) cm(-2) s(-1), assuming no neutrino oscillations. This rate is consistent with matter enhanced neutrino oscillations and measurements from other experiments.",
author = "{SNO Collaboration} and M. Anderson and S. Andringa and S. Asahi and M. Askins and Auty, {D. J.} and N. Barros and D. Bartlett and F. Barao and R. Bayes and Beier, {E. W.} and A. Bialek and Biller, {S. D.} and E. Blucher and R. Bonventre and M. Boulay and E. Caden and Callaghan, {E. J.} and J. Caravaca and D. Chauhan and M. Chen and O. Chkvorets and B. Cleveland and C. Connors and Coulter, {I. T.} and Depatie, {M. M.} and {Di Lodovico}, F. and F. Duncan and J. Dunger and E. Falk and V. Fischer and E. Fletcher and R. Ford and N. Gagnon and K. Gilje and C. Grant and J. Grove and Hallin, {A. L.} and D. Hallman and S. Hans and J. Hartnell and Heintzelman, {W. J.} and Helmer, {R. L.} and Hernandez-Hernandez, {J. L.} and B. Hreljac and J. Hu and Inacio, {A. S.} and Kormos, {L. L.} and O'Keeffe, {H. M.} and Parnell, {M. J.} and Peeters, {S. J. M.}",
year = "2019",
month = jan
day = "28",
doi = "10.1103/PhysRevD.99.012012",
language = "English",
volume = "99",
journal = "Physical Review D",
issn = "1550-7998",
publisher = "American Physical Society",
number = "1",

}

RIS

TY - JOUR

T1 - Measurement of the B-8 solar neutrino flux in SNO plus with very low backgrounds

AU - SNO Collaboration

AU - Anderson, M.

AU - Andringa, S.

AU - Asahi, S.

AU - Askins, M.

AU - Auty, D. J.

AU - Barros, N.

AU - Bartlett, D.

AU - Barao, F.

AU - Bayes, R.

AU - Beier, E. W.

AU - Bialek, A.

AU - Biller, S. D.

AU - Blucher, E.

AU - Bonventre, R.

AU - Boulay, M.

AU - Caden, E.

AU - Callaghan, E. J.

AU - Caravaca, J.

AU - Chauhan, D.

AU - Chen, M.

AU - Chkvorets, O.

AU - Cleveland, B.

AU - Connors, C.

AU - Coulter, I. T.

AU - Depatie, M. M.

AU - Di Lodovico, F.

AU - Duncan, F.

AU - Dunger, J.

AU - Falk, E.

AU - Fischer, V.

AU - Fletcher, E.

AU - Ford, R.

AU - Gagnon, N.

AU - Gilje, K.

AU - Grant, C.

AU - Grove, J.

AU - Hallin, A. L.

AU - Hallman, D.

AU - Hans, S.

AU - Hartnell, J.

AU - Heintzelman, W. J.

AU - Helmer, R. L.

AU - Hernandez-Hernandez, J. L.

AU - Hreljac, B.

AU - Hu, J.

AU - Inacio, A. S.

AU - Kormos, L. L.

AU - O'Keeffe, H. M.

AU - Parnell, M. J.

AU - Peeters, S. J. M.

PY - 2019/1/28

Y1 - 2019/1/28

N2 - A measurement of the B-8 solar neutrino flux has been made using a 69.2 kt-day dataset acquired with the SNO+ detector during its water commissioning phase. At energies above 6 MeV the dataset is an extremely pure sample of solar neutrino elastic scattering events, owing primarily to the detector's deep location, allowing an accurate measurement with relatively little exposure. In that energy region the best tit background rate is 0.25(-0.07)(+0.09) events/kt-day, significantly lower than the measured solar neutrino event rate in that energy range, which is 1.03(-0.12)(+0.13) events/kt-day. Also using data below this threshold, don to 5 MeV, fits of the solar neutrino event direction yielded an observed flux of 2.51(-0.28)(+0.31)(stat)(-0.10)(+0.13)(syst) x 10(6) cm(-2) s(-1), assuming no neutrino oscillations. This rate is consistent with matter enhanced neutrino oscillations and measurements from other experiments.

AB - A measurement of the B-8 solar neutrino flux has been made using a 69.2 kt-day dataset acquired with the SNO+ detector during its water commissioning phase. At energies above 6 MeV the dataset is an extremely pure sample of solar neutrino elastic scattering events, owing primarily to the detector's deep location, allowing an accurate measurement with relatively little exposure. In that energy region the best tit background rate is 0.25(-0.07)(+0.09) events/kt-day, significantly lower than the measured solar neutrino event rate in that energy range, which is 1.03(-0.12)(+0.13) events/kt-day. Also using data below this threshold, don to 5 MeV, fits of the solar neutrino event direction yielded an observed flux of 2.51(-0.28)(+0.31)(stat)(-0.10)(+0.13)(syst) x 10(6) cm(-2) s(-1), assuming no neutrino oscillations. This rate is consistent with matter enhanced neutrino oscillations and measurements from other experiments.

U2 - 10.1103/PhysRevD.99.012012

DO - 10.1103/PhysRevD.99.012012

M3 - Journal article

VL - 99

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 1

M1 - 012012

ER -