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Independent measurement of the total active B8 solar neutrino flux using an array of He3 proportional counters at the Sudbury Neutrino Observatory

Aharmim, B. and Ahmed, S. N. and Amsbaugh, J. F. 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-Mobrand, G. A. and Currat, C. A. and Dai, X. and Deng, H. and Detwiler, J. and DiMarco, M. and Doe, P. J. and Doucas, G. 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 Goldschmidt, A. 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 Hamian, A. A. and Harper, G. C. and Harvey, P. J. and Hazama, R. and Heeger, K. M. and Heintzelman, W. J. and Heise, J. and Helmer, R. L. and Henning, R. and Hime, A. and Howard, C. and Howe, M. A. and Huang, M. and Jagam, P. and Jamieson, B. and Jelley, N. A. and Keeter, K. J. and Klein, J. R. and Kormos, Laura and Kos, M. and Krueger, A. and Kraus, C. and Krauss, C. B. and Kutter, T. and Kyba, C. C. M. and Lange, R. and Law, J. and Lawson, I. T. and Lesko, K. T. and Leslie, J. R. and Loach, J. C. and MacLellan, R. and Majerus, S. and Mak, H. B. and Maneira, J. and Martin, R. and McBryde, K. and McCauley, N. and McDonald, A. B. and Mcgee, S. and Mifflin, C. and Miller, G. G. and Miller, M. L. and Monreal, B. and Monroe, J. and Morissette, B. and Myers, A. and Nickel, B. G. and Noble, A. J. and Oblath, N. S. and O'Keeffe, Helen and Ollerhead, R. W. and Gann, G. D. Orebi and Oser, S. M. and Ott, R. A. and Peeters, S. J. M. and Poon, A. W. P. and Prior, G. and Reitzner, S. D. and Rielage, K. and Robertson, B. C. and Robertson, R. G. H. and Rollin, E. and Schwendener, M. H. and Secrest, J. A. and Seibert, S. R. and Simard, O. and Simpson, J. J. and Sinclair, L. and Skensved, P. and Smith, M. W. E. and Steiger, T. D. and Stonehill, L. C. and Tesic, G. and Thornewell, P. M. and Tolich, N. and Tsui, T. and Tunnell, C. D. and Van Wechel, T. and Van Berg, R. and VanDevender, B. A. and Virtue, C. J. and Walker, T. J. and Wall, B. L. and Waller, D. and Tseung, H. Wan Chan and Wendland, J. and West, N. and Wilhelmy, J. B. and Wilkerson, J. F. and Wilson, J. R. and Wouters, J. M. and Wright, A. and Yeh, M. and Zhang, F. and Zuber, K. (2008) Independent measurement of the total active B8 solar neutrino flux using an array of He3 proportional counters at the Sudbury Neutrino Observatory. Physical Review Letters, 101 (11). ISSN 1079-7114

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    Abstract

    The Sudbury Neutrino Observatory (SNO) used an array of 3He proportional counters to measure the rate of neutral-current interactions in heavy water and precisely determined the total active (νx) 8B solar neutrino flux. This technique is independent of previous methods employed by SNO. The total flux is found to be 5.54-0.31+0.33(stat)-0.34+0.36(syst)×106 cm-2 s-1, in agreement with previous measurements and standard solar models. A global analysis of solar and reactor neutrino results yields Δm2=7.59-0.21+0.19×10-5 eV2 and θ=34.4-1.2+1.3 degrees. The uncertainty on the mixing angle has been reduced from SNO’s previous results.

    Item Type: Article
    Journal or Publication Title: Physical Review Letters
    Additional Information: © 2008 The American Physical Society
    Uncontrolled Keywords: OSCILLATIONS ; SIMULATION ; MATTER ; WATER
    Subjects:
    Departments: Faculty of Science and Technology > Physics
    ID Code: 52341
    Deposited By: ep_importer_pure
    Deposited On: 20 Jan 2012 14:56
    Refereed?: Yes
    Published?: Published
    Last Modified: 21 Sep 2017 04:45
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/52341

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