Rights statement: © 2009 The American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Measurement of the cosmic ray and neutrino-induced muon flux at the Sudbury neutrino observatory
AU - Aharmim, B.
AU - Ahmed, S.
AU - Andersen, T.
AU - Anthony, A.
AU - Barros, N.
AU - Beier, E.
AU - Bellerive, A.
AU - Beltran, B.
AU - Bergevin, M.
AU - Biller, S.
AU - Boudjemline, K.
AU - Boulay, M.
AU - Burritt, T.
AU - Cai, B.
AU - Chan, Y.
AU - Chen, M.
AU - Chon, M.
AU - Cleveland, B.
AU - Cox-mobrand, G.
AU - Currat, C.
AU - Dai, X.
AU - Dalnoki-veress, F.
AU - Deng, H.
AU - Detwiler, J.
AU - Doe, P.
AU - Dosanjh, R.
AU - Doucas, G.
AU - Drouin, P.-l.
AU - Duncan, F.
AU - Dunford, M.
AU - Elliott, S.
AU - Evans, H.
AU - Ewan, G.
AU - Farine, J.
AU - Fergani, H.
AU - Fleurot, F.
AU - Ford, R.
AU - Formaggio, J.
AU - Gagnon, N.
AU - Goon, J.
AU - Graham, K.
AU - Grant, D.
AU - Guillian, E.
AU - Habib, S.
AU - Hahn, R.
AU - Hallin, A.
AU - Hallman, E.
AU - Hargrove, C.
AU - Harvey, P.
AU - O'Keeffe, Helen
AU - SNO Collaboration
N1 - © 2009 The American Physical Society
PY - 2009/7/10
Y1 - 2009/7/10
N2 - Results are reported on the measurement of the atmospheric neutrino-induced muon flux at a depth of 2 kilometers below the Earth’s surface from 1229 days of operation of the Sudbury Neutrino Observatory (SNO). By measuring the flux of through-going muons as a function of zenith angle, the SNO experiment can distinguish between the oscillated and unoscillated portion of the neutrino flux. A total of 514 muonlike events are measured between −1≤cosθzenith≤0.4 in a total exposure of 2.30×1014 cm2 s. The measured flux normalization is 1.22±0.09 times the Bartol three-dimensional flux prediction. This is the first measurement of the neutrino-induced flux where neutrino oscillations are minimized. The zenith distribution is consistent with previously measured atmospheric neutrino oscillation parameters. The cosmic ray muon flux at SNO with zenith angle cosθzenith>0.4 is measured to be (3.31±0.01(stat)±0.09(sys))×10−10 μ/s/cm2.
AB - Results are reported on the measurement of the atmospheric neutrino-induced muon flux at a depth of 2 kilometers below the Earth’s surface from 1229 days of operation of the Sudbury Neutrino Observatory (SNO). By measuring the flux of through-going muons as a function of zenith angle, the SNO experiment can distinguish between the oscillated and unoscillated portion of the neutrino flux. A total of 514 muonlike events are measured between −1≤cosθzenith≤0.4 in a total exposure of 2.30×1014 cm2 s. The measured flux normalization is 1.22±0.09 times the Bartol three-dimensional flux prediction. This is the first measurement of the neutrino-induced flux where neutrino oscillations are minimized. The zenith distribution is consistent with previously measured atmospheric neutrino oscillation parameters. The cosmic ray muon flux at SNO with zenith angle cosθzenith>0.4 is measured to be (3.31±0.01(stat)±0.09(sys))×10−10 μ/s/cm2.
U2 - 10.1103/PhysRevD.80.012001
DO - 10.1103/PhysRevD.80.012001
M3 - Journal article
VL - 80
JO - Physical Review D
JF - Physical Review D
SN - 1550-7998
IS - 1
M1 - 012001
ER -