First neutrino observations from the sudbury neutrino observatory

A. B. McDonald, M. G. Boulay, E. Bonvin, M. Chen, F. A. Duncan, E. D. Earle, H. C. Evans, G. T. Ewan, R. J. Ford, A. L. Hallin, P. J. Harvey, J. D. Hepburn, C. Jillings, H. W. Lee, J. R. Leslie, H. B. Mak, A. B. McDonald, W. McLatchie, B. A. Moffat, B. C. RobertsonP. Skensved, B. Sur, I. Blevis, F. Dalnoki-Veress, W. Davidson, J. Farine, D. R. Grant, C. K. Hargrove, I. Levine, K. McFarlane, T. Noble, V. M. Novikov, M. O'Neill, M. Shatkay, C. Shewchuk, D. Sinclair, T. Andersen, M. C. Chon, P. Jagam, J. Law, I. T. Lawson, R. W. Ollerhead, J. J. Simpson, N. Tagg, J. X. Wang, J. Bigu, J. H.M. Cowan, E. D. Hallman, R. U. Haq, J. Hewett, J. G. Hykawy, G. Jonkmans, A. Roberge, E. Saettler, M. H. Schwendener, H. Seifert, R. Tafirout, C. J. Virtue, S. Gil, J. Heise, R. Helmer, R. J. Komar, T. Kutter, C. W. Nally, H. S. Ng, R. Schubank, Y. Tserkovnyak, C. E. Waltham, E. W. Beier, D. F. Cowen, E. D. Frank, W. Frati, P. T. Keener, J. R. Klein, C. Kyba, D. S. McDonald, M. S. Neubauer, F. M. Newcomer, V. Rusu, R. van Berg, R. G. van de Water, P. Wittich, T. J. Bowles, S. J. Brice, M. Dragowsky, M. M. Fowler, A. Goldschmidt, A. Hamer, A. Hime, K. Kirch, J. B. Wilhelmy, J. M. Wouters, Y. D. Chan, X. Chen, M. C.P. Isaac, K. T. Lesko, A. D. Marino, E. B. Norman, C. E. Okada, A. W.P. Poon, A. R. Smith, A. Schuelke, R. G. Stokstad, Q. R. Ahmad, M. C. Browne, T. V. Bullard, P. J. Doe, C. A. Duba, S. R. Elliott, R. Fardon, J. V. Germani, A. A. Hamian, K. M. Heeger, R. Meijer Drees, J. Orrell, R. G.H. Robertson, K. Schaffer, M. W.E. Smith, T. D. Steiger, J. F. Wilkerson, J. C. Barton, S. Biller, R. Black, R. Boardman, M. Bowler, J. Cameron, B. Cleveland, G. Doucas, F. Ferraris, H. Fergami, K. Frame, H. Heron, C. Howard, N. A. Jelley, A. B. Knox, M. Lay, W. Locke, J. Lyon, N. McCaulay, S. Majerus, G. MacGregor, M. Moorhead, M. Omori, N. W. Tanner, R. Taplin, M. Thorman, P. T. Trent, D. L. Wark, N. West, J. Boger, R. L. Hahn, J. K. Rowley, M. Yeh, R. G. Allen, G. Buhler, H. H. Chen

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Abstract

The first neutrino observations from the Sudbury Neutrino Observatory are presented from preliminary analyses. Based on energy, direction and location, the data in the region of interest appear to be dominated by 8B solar neutrinos, detected by the charged current reaction on deuterium and elastic scattering from electrons, with very little background. Measurements of radioactive backgrounds indicate that the measurement of all active neutrino types via the neutral current reaction on deuterium will be possible with small systematic uncertainties. Quantitative results for the fluxes observed with these reactions will be provided when further calibrations have been completed.

Original languageEnglish (US)
Pages (from-to)21-28
Number of pages8
JournalNuclear Physics B - Proceedings Supplements
Volume91
Issue number1-3
StatePublished - Jan 2001

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

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