Measurement of the nu(e) and total B-8 solar neutrino fluxes with the Sudbury Neutrino Observatory phase-III data set

Aharmim, B. and Ahmed, S. N. and Amsbaugh, J. F. and Anaya, J. M. and Anthony, A. E. and Banar, J. 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 Bowles, T. J. and Browne, M. C. and Bullard, T. V. and Burritt, T. H. and Cai, B. and Chan, Y. D. and Chauhan, D. and Chen, M. and Cleveland, B. T. and Cox, G. A. and Currat, C. A. and Dai, X. and Deng, H. and Detwiler, J. A. and DiMarco, M. and Doe, P. J. and Doucas, G. and Dragowsky, M. R. and Drouin, P. -L. and Duba, C. A. 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 Fowler, M. M. and Gagnon, N. and Germani, J. V. and Kormos, L. L. and O'Keeffe, H. M. and , SNO Collaboration (2013) Measurement of the nu(e) and total B-8 solar neutrino fluxes with the Sudbury Neutrino Observatory phase-III data set. Physical Review C, 87 (1). ISSN 0556-2813

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This paper details the solar neutrino analysis of the 385.17-day phase-III data set acquired by the Sudbury Neutrino Observatory (SNO). An array of He-3 proportional counters was installed in the heavy-water target to measure precisely the rate of neutrino-deuteron neutral-current interactions. This technique to determine the total active B-8 solar neutrino flux was largely independent of the methods employed in previous phases. The total flux of active neutrinos was measured to be 5.54(-0.31)(+0.33)(stat.)(-0.34)(+0.36)(syst.) x 10(6) cm(-2) s(-1), consistent with previous measurements and standard solar models. A global analysis of solar and reactor neutrino mixing parameters yielded the best-fit values of Delta m(2) = 7.59(-0.21)(+0.19) x 10(-5) eV(2) and theta = 34.4(-1.2)(+1.3) degrees. DOI: 10.1103/PhysRevC.87.015502

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Journal Article
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Physical Review C
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©2013 American Physical Society
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22 Apr 2013 08:48
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24 Oct 2020 02:42