Home > Research > Publications & Outputs > Low-energy-threshold analysis of the Phase I an...

Associated organisational unit

Electronic data

  • E055504

    Rights statement: © 2010 The American Physical Society

    Final published version, 2.08 MB, PDF document

Links

Text available via DOI:

View graph of relations

Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory

Research output: Contribution to journalJournal article

Published

Standard

Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory. / Aharmim, B.; Ahmed, S. N.; Anthony, A. E.; Barros, N.; Beier, E. W.; Bellerive, A.; Beltran, B.; Bergevin, M.; Biller, S. D.; Boudjemline, K.; Boulay, M. G.; Burritt, T. H.; Cai, B.; Chan, Y. D.; Chauhan, D.; Chen, M.; Cleveland, B. T.; Cox, G. A.; Dai, X.; Deng, H.; Detwiler, J.; DiMarco, M.; Doe, P. J.; Doucas, G.; Drouin, P-L.; Duba, C. A.; Duncan, F. A.; Dunford, M.; Earle, E. D.; Elliott, S. R.; Evans, H. C.; Ewan, G. T.; Farine, J.; Fergani, H.; Fleurot, F.; Ford, R. J.; Formaggio, J. A.; Gagnon, N.; Goon, J. Tm; Graham, K.; Guillian, E.; Habib, S.; Hahn, R. L.; Hallin, A. L.; Hallman, E. D.; Harvey, P. J.; Hazama, R.; Heintzelman, W. J.; O'Keeffe, Helen; SNO Collaboration ; Kormos, Laura.

In: Physical Review C, Vol. 81, No. 5, 055504, 05.2010, p. -.

Research output: Contribution to journalJournal article

Harvard

Aharmim, B, Ahmed, SN, Anthony, AE, Barros, N, Beier, EW, Bellerive, A, Beltran, B, Bergevin, M, Biller, SD, Boudjemline, K, Boulay, MG, Burritt, TH, Cai, B, Chan, YD, Chauhan, D, Chen, M, Cleveland, BT, Cox, GA, Dai, X, Deng, H, Detwiler, J, DiMarco, M, Doe, PJ, Doucas, G, Drouin, P-L, Duba, CA, Duncan, FA, Dunford, M, Earle, ED, Elliott, SR, Evans, HC, Ewan, GT, Farine, J, Fergani, H, Fleurot, F, Ford, RJ, Formaggio, JA, Gagnon, N, Goon, JT, Graham, K, Guillian, E, Habib, S, Hahn, RL, Hallin, AL, Hallman, ED, Harvey, PJ, Hazama, R, Heintzelman, WJ, O'Keeffe, H, SNO Collaboration & Kormos, L 2010, 'Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory', Physical Review C, vol. 81, no. 5, 055504, pp. -. https://doi.org/10.1103/PhysRevC.81.055504

APA

Aharmim, B., Ahmed, S. N., Anthony, A. E., Barros, N., Beier, E. W., Bellerive, A., Beltran, B., Bergevin, M., Biller, S. D., Boudjemline, K., Boulay, M. G., Burritt, T. H., Cai, B., Chan, Y. D., Chauhan, D., Chen, M., Cleveland, B. T., Cox, G. A., Dai, X., ... Kormos, L. (2010). Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory. Physical Review C, 81(5), -. [055504]. https://doi.org/10.1103/PhysRevC.81.055504

Vancouver

Aharmim B, Ahmed SN, Anthony AE, Barros N, Beier EW, Bellerive A et al. Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory. Physical Review C. 2010 May;81(5):-. 055504. https://doi.org/10.1103/PhysRevC.81.055504

Author

Aharmim, B. ; Ahmed, S. N. ; Anthony, A. E. ; Barros, N. ; Beier, E. W. ; Bellerive, A. ; Beltran, B. ; Bergevin, M. ; Biller, S. D. ; Boudjemline, K. ; Boulay, M. G. ; Burritt, T. H. ; Cai, B. ; Chan, Y. D. ; Chauhan, D. ; Chen, M. ; Cleveland, B. T. ; Cox, G. A. ; Dai, X. ; Deng, H. ; Detwiler, J. ; DiMarco, M. ; Doe, P. J. ; Doucas, G. ; Drouin, P-L. ; Duba, C. A. ; Duncan, F. A. ; Dunford, M. ; Earle, E. D. ; Elliott, S. R. ; Evans, H. C. ; Ewan, G. T. ; Farine, J. ; Fergani, H. ; Fleurot, F. ; Ford, R. J. ; Formaggio, J. A. ; Gagnon, N. ; Goon, J. Tm ; Graham, K. ; Guillian, E. ; Habib, S. ; Hahn, R. L. ; Hallin, A. L. ; Hallman, E. D. ; Harvey, P. J. ; Hazama, R. ; Heintzelman, W. J. ; O'Keeffe, Helen ; SNO Collaboration ; Kormos, Laura. / Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory. In: Physical Review C. 2010 ; Vol. 81, No. 5. pp. -.

Bibtex

@article{586dd4d4d049495eb722e5439a6f7c03,
title = "Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory",
abstract = "Results are reported from a joint analysis of Phase I and Phase II data from the Sudbury Neutrino Observatory. The effective electron kinetic energy threshold used is T-eff = 3.5MeV, the lowest analysis threshold yet achieved with water Cherenkov detector data. In units of 106 cm(-2) s(-1), the total flux of active-flavor neutrinos from B-8 decay in the Sun measured using the neutral current (NC) reaction of neutrinos on deuterons, with no constraint on the B-8 neutrino energy spectrum, is found to be Phi(NC) = 5.140(-0.158)(+0.160)(stat)(-0.117)(+0.132)(syst). These uncertainties are more than a factor of 2 smaller than previously published results. Also presented are the spectra of recoil electrons from the charged current reaction of neutrinos on deuterons and the elastic scattering of electrons. A fit to the Sudbury Neutrino Observatory data in which the free parameters directly describe the total B-8 neutrino flux and the energy-dependent nu(e) survival probability provides a measure of the total B-8 neutrino flux Phi(8B) = 5.046(-0.152)(+0.159)(stat)(-0.123)(+0.107)(syst). Combining these new results with results of all other solar experiments and the KamLAND reactor experiment yields best- fit values of the mixing parameters of theta(12) = 34.06(-0.84)(+1.16) degrees and Delta m(21)(2) = 7.59(-0.21)(+0.20) x 10(-5) eV(2). The global value of Phi(8B) is extracted to a precision of (+2.38)(-2.95)%. In a three-flavor analysis the best fit value of sin(2) theta(13) is 2.00(-1.63)(+2.09) x 10(-2). This implies an upper bound of sin(2) theta(13) < 0.057 (95% C.L.).",
keywords = "CALIBRATION SOURCE, PHYSICS, MATTER, OSCILLATIONS",
author = "B. Aharmim and Ahmed, {S. N.} and Anthony, {A. E.} and N. Barros and Beier, {E. W.} and A. Bellerive and B. Beltran and M. Bergevin and Biller, {S. D.} and K. Boudjemline and Boulay, {M. G.} and Burritt, {T. H.} and B. Cai and Chan, {Y. D.} and D. Chauhan and M. Chen and Cleveland, {B. T.} and Cox, {G. A.} and X. Dai and H. Deng and J. Detwiler and M. DiMarco and Doe, {P. J.} and G. Doucas and P-L. Drouin and Duba, {C. A.} and Duncan, {F. A.} and M. Dunford and Earle, {E. D.} and Elliott, {S. R.} and Evans, {H. C.} and Ewan, {G. T.} and J. Farine and H. Fergani and F. Fleurot and Ford, {R. J.} and Formaggio, {J. A.} and N. Gagnon and Goon, {J. Tm} and K. Graham and E. Guillian and S. Habib and Hahn, {R. L.} and Hallin, {A. L.} and Hallman, {E. D.} and Harvey, {P. J.} and R. Hazama and Heintzelman, {W. J.} and Helen O'Keeffe and {SNO Collaboration} and Laura Kormos",
note = "{\textcopyright} 2010 The American Physical Society",
year = "2010",
month = may
doi = "10.1103/PhysRevC.81.055504",
language = "English",
volume = "81",
pages = "--",
journal = "Physical Review C",
issn = "0556-2813",
publisher = "American Physical Society",
number = "5",

}

RIS

TY - JOUR

T1 - Low-energy-threshold analysis of the Phase I and Phase II data sets of the Sudbury Neutrino Observatory

AU - Aharmim, B.

AU - Ahmed, S. N.

AU - Anthony, A. E.

AU - Barros, N.

AU - Beier, E. W.

AU - Bellerive, A.

AU - Beltran, B.

AU - Bergevin, M.

AU - Biller, S. D.

AU - Boudjemline, K.

AU - Boulay, M. G.

AU - Burritt, T. H.

AU - Cai, B.

AU - Chan, Y. D.

AU - Chauhan, D.

AU - Chen, M.

AU - Cleveland, B. T.

AU - Cox, G. A.

AU - Dai, X.

AU - Deng, H.

AU - Detwiler, J.

AU - DiMarco, M.

AU - Doe, P. J.

AU - Doucas, G.

AU - Drouin, P-L.

AU - Duba, C. A.

AU - Duncan, F. A.

AU - Dunford, M.

AU - Earle, E. D.

AU - Elliott, S. R.

AU - Evans, H. C.

AU - Ewan, G. T.

AU - Farine, J.

AU - Fergani, H.

AU - Fleurot, F.

AU - Ford, R. J.

AU - Formaggio, J. A.

AU - Gagnon, N.

AU - Goon, J. Tm

AU - Graham, K.

AU - Guillian, E.

AU - Habib, S.

AU - Hahn, R. L.

AU - Hallin, A. L.

AU - Hallman, E. D.

AU - Harvey, P. J.

AU - Hazama, R.

AU - Heintzelman, W. J.

AU - O'Keeffe, Helen

AU - SNO Collaboration

AU - Kormos, Laura

N1 - © 2010 The American Physical Society

PY - 2010/5

Y1 - 2010/5

N2 - Results are reported from a joint analysis of Phase I and Phase II data from the Sudbury Neutrino Observatory. The effective electron kinetic energy threshold used is T-eff = 3.5MeV, the lowest analysis threshold yet achieved with water Cherenkov detector data. In units of 106 cm(-2) s(-1), the total flux of active-flavor neutrinos from B-8 decay in the Sun measured using the neutral current (NC) reaction of neutrinos on deuterons, with no constraint on the B-8 neutrino energy spectrum, is found to be Phi(NC) = 5.140(-0.158)(+0.160)(stat)(-0.117)(+0.132)(syst). These uncertainties are more than a factor of 2 smaller than previously published results. Also presented are the spectra of recoil electrons from the charged current reaction of neutrinos on deuterons and the elastic scattering of electrons. A fit to the Sudbury Neutrino Observatory data in which the free parameters directly describe the total B-8 neutrino flux and the energy-dependent nu(e) survival probability provides a measure of the total B-8 neutrino flux Phi(8B) = 5.046(-0.152)(+0.159)(stat)(-0.123)(+0.107)(syst). Combining these new results with results of all other solar experiments and the KamLAND reactor experiment yields best- fit values of the mixing parameters of theta(12) = 34.06(-0.84)(+1.16) degrees and Delta m(21)(2) = 7.59(-0.21)(+0.20) x 10(-5) eV(2). The global value of Phi(8B) is extracted to a precision of (+2.38)(-2.95)%. In a three-flavor analysis the best fit value of sin(2) theta(13) is 2.00(-1.63)(+2.09) x 10(-2). This implies an upper bound of sin(2) theta(13) < 0.057 (95% C.L.).

AB - Results are reported from a joint analysis of Phase I and Phase II data from the Sudbury Neutrino Observatory. The effective electron kinetic energy threshold used is T-eff = 3.5MeV, the lowest analysis threshold yet achieved with water Cherenkov detector data. In units of 106 cm(-2) s(-1), the total flux of active-flavor neutrinos from B-8 decay in the Sun measured using the neutral current (NC) reaction of neutrinos on deuterons, with no constraint on the B-8 neutrino energy spectrum, is found to be Phi(NC) = 5.140(-0.158)(+0.160)(stat)(-0.117)(+0.132)(syst). These uncertainties are more than a factor of 2 smaller than previously published results. Also presented are the spectra of recoil electrons from the charged current reaction of neutrinos on deuterons and the elastic scattering of electrons. A fit to the Sudbury Neutrino Observatory data in which the free parameters directly describe the total B-8 neutrino flux and the energy-dependent nu(e) survival probability provides a measure of the total B-8 neutrino flux Phi(8B) = 5.046(-0.152)(+0.159)(stat)(-0.123)(+0.107)(syst). Combining these new results with results of all other solar experiments and the KamLAND reactor experiment yields best- fit values of the mixing parameters of theta(12) = 34.06(-0.84)(+1.16) degrees and Delta m(21)(2) = 7.59(-0.21)(+0.20) x 10(-5) eV(2). The global value of Phi(8B) is extracted to a precision of (+2.38)(-2.95)%. In a three-flavor analysis the best fit value of sin(2) theta(13) is 2.00(-1.63)(+2.09) x 10(-2). This implies an upper bound of sin(2) theta(13) < 0.057 (95% C.L.).

KW - CALIBRATION SOURCE

KW - PHYSICS

KW - MATTER

KW - OSCILLATIONS

UR - http://www.scopus.com/inward/record.url?scp=77953305252&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.81.055504

DO - 10.1103/PhysRevC.81.055504

M3 - Journal article

VL - 81

SP - -

JO - Physical Review C

JF - Physical Review C

SN - 0556-2813

IS - 5

M1 - 055504

ER -