Combined analysis of all three phases of solar neutrino data from the Sudbury Neutrino Observatory

Aharmim, B. and Ahmed, S. N. and Anthony, A. E. and Barros, N. and Beier, E. W. and Bellerive, A. and Beltran, B. and Bergevin, M. and Biller, S. D. and Boudjemline, K. and Boulay, M. G. and Cai, B. and Chan, Y. D. and Chauhan, D. and Chen, M. and Cleveland, B. T. and Cox, G. A. and Dai, X. and Deng, H. and Detwiler, J. A. and DiMarco, M. and Doe, P. J. and Doucas, G. and Drouin, P. -L. and Duncan, F. A. and Dunford, M. and Earle, E. D. and Elliott, S. R. and Evans, H. C. and Ewan, G. T. and Farine, J. and Fergani, H. and Fleurot, F. and Ford, R. J. and Formaggio, J. A. and Gagnon, N. and Goon, J. T. M. and Graham, K. and Guillian, E. and Habib, S. and Hahn, R. L. and Hallin, A. L. and Hallman, E. D. and Harvey, P. J. and Hazama, R. and Heintzelman, W. J. and Heise, J. and Helmer, R. L. and Kormos, L. L. and O'Keeffe, Helen and SNO Collaboration (2013) Combined analysis of all three phases of solar neutrino data from the Sudbury Neutrino Observatory. Physical Review C, 88 (2). ISSN 0556-2813

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We report results from a combined analysis of solar neutrino data from all phases of the Sudbury Neutrino Observatory (SNO). By exploiting particle identification information obtained from the proportional counters installed during the third phase, this analysis improved background rejection in that phase of the experiment. The combined analysis of the SNO data resulted in a total flux of active neutrino flavors from B-8 decays in the Sun of (5.25 +/- 0.16(stat.)(-0.13)(+0.11)(syst.)) x 10(6) cm(-2)s(-1), while a two-flavor neutrino oscillation analysis yielded Delta m(21)(2) = (5.6(-1.4)(+1.9)) x 10(-5) eV(2) and tan(2) theta(12) = 0.427(-0.029)(+0.033). A three-flavor neutrino oscillation analysis combining the SNO result with results of all other solar neutrino experiments and reactor neutrino experiments yielded Delta m(21)(2) = (7.46(-0.19)(+0.20)) x 10(-5) eV(2), tan(2) theta(12) = 0.443(-0.025)(+0.030), and sin(2) theta(13) = (2.49(-0.32)(+0.20)) x 10(-2).

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Journal Article
Journal or Publication Title:
Physical Review C
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17 Sep 2013 08:09
Last Modified:
20 Sep 2023 00:33