Independent measurement of the total active 8B solar neutrino flux using an array of 3He proportional counters at the Sudbury Neutrino Observatory

B Aharmim; S N Ahmed; J F Amsbaugh; A E Anthony; J Banar; N Barros; E W Beier; A Bellerive; B Beltran; M Bergevin; S D Biller; K Boudjemline; M G Boulay; T J Bowles; M C Browne; T V Bullard; T H Burritt; B Cai; Y D Chan; D Chauhan; M Chen; B T Cleveland; G A Cox-Mobrand; C A Currat; X Dai; H Deng; J Detwiler; M DiMarco; P J Doe; G Doucas; P-L Drouin; C A Duba; F A Duncan; M Dunford; E D Earle; S R Elliott; H C Evans; G T Ewan; J Farine; H Fergani; F Fleurot; R J Ford; J A Formaggio; M M Fowler; N Gagnon; J V Germani; A Goldschmidt; J T M Goon; K Graham; E Guillian; S Habib; R L Hahn; A L Hallin; E D Hallman; A A Hamian; G C Harper; P J Harvey; R Hazama; K M Heeger; W J Heintzelman; J Heise; R L Helmer; R Henning; A Hime; C Howard; M A Howe; M Huang; P Jagam; B Jamieson; N A Jelley; K J Keeter; J R Klein; L L Kormos; M Kos; A Krüger; C Kraus; C B Krauss; T Kutter; C C M Kyba; R Lange; J Law; I T Lawson; K T Lesko; J R Leslie; J C Loach; R MacLellan; S Majerus; H B Mak; J Maneira; R Martin; K McBryde; N McCauley; A B McDonald; S McGee; C Mifflin; G G Miller; M L Miller; B Monreal; J Monroe; B Morissette; A Myers; B G Nickel; A J Noble; N S Oblath; H M O'Keeffe; R W Ollerhead; G D Orebi Gann; S M Oser; R A Ott; S J M Peeters; A W P Poon; G Prior; S D Reitzner; K Rielage; B C Robertson; R G H Robertson; E Rollin; M H Schwendener; J A Secrest; S R Seibert; O Simard; J J Simpson; L Sinclair; P Skensved; M W E Smith; T D Steiger; L C Stonehill; G Tesić; P M Thornewell; N Tolich; T Tsui; C D Tunnell; T Van Wechel; R Van Berg; B A VanDevender; C J Virtue; T J Walker; B L Wall; D Waller; H Wan Chan Tseung; J Wendland; N West; J B Wilhelmy; J F Wilkerson; J R Wilson; J M Wouters; A Wright; M Yeh; F Zhang; K Zuber; SNO Collaboration

doi:10.1103/PhysRevLett.101.111301

Independent measurement of the total active 8B solar neutrino flux using an array of 3He proportional counters at the Sudbury Neutrino Observatory

Phys Rev Lett. 2008 Sep 12;101(11):111301. doi: 10.1103/PhysRevLett.101.111301. Epub 2008 Sep 9.

Authors

B Aharmim¹, S N Ahmed, J F Amsbaugh, A E Anthony, J Banar, N Barros, E W Beier, A Bellerive, B Beltran, M Bergevin, S D Biller, K Boudjemline, M G Boulay, T J Bowles, M C Browne, T V Bullard, T H Burritt, B Cai, Y D Chan, D Chauhan, M Chen, B T Cleveland, G A Cox-Mobrand, C A Currat, X Dai, H Deng, J Detwiler, M DiMarco, P J Doe, G Doucas, P-L Drouin, C A Duba, F A Duncan, M Dunford, E D Earle, S R Elliott, H C Evans, G T Ewan, J Farine, H Fergani, F Fleurot, R J Ford, J A Formaggio, M M Fowler, N Gagnon, J V Germani, A Goldschmidt, J T M Goon, K Graham, E Guillian, S Habib, R L Hahn, A L Hallin, E D Hallman, A A Hamian, G C Harper, P J Harvey, R Hazama, K M Heeger, W J Heintzelman, J Heise, R L Helmer, R Henning, A Hime, C Howard, M A Howe, M Huang, P Jagam, B Jamieson, N A Jelley, K J Keeter, J R Klein, L L Kormos, M Kos, A Krüger, C Kraus, C B Krauss, T Kutter, C C M Kyba, R Lange, J Law, I T Lawson, K T Lesko, J R Leslie, J C Loach, R MacLellan, S Majerus, H B Mak, J Maneira, R Martin, K McBryde, N McCauley, A B McDonald, S McGee, C Mifflin, G G Miller, M L Miller, B Monreal, J Monroe, B Morissette, A Myers, B G Nickel, A J Noble, N S Oblath, H M O'Keeffe, R W Ollerhead, G D Orebi Gann, S M Oser, R A Ott, S J M Peeters, A W P Poon, G Prior, S D Reitzner, K Rielage, B C Robertson, R G H Robertson, E Rollin, M H Schwendener, J A Secrest, S R Seibert, O Simard, J J Simpson, L Sinclair, P Skensved, M W E Smith, T D Steiger, L C Stonehill, G Tesić, P M Thornewell, N Tolich, T Tsui, C D Tunnell, T Van Wechel, R Van Berg, B A VanDevender, C J Virtue, T J Walker, B L Wall, D Waller, H Wan Chan Tseung, J Wendland, N West, J B Wilhelmy, J F Wilkerson, J R Wilson, J M Wouters, A Wright, M Yeh, F Zhang, K Zuber; SNO Collaboration

Affiliation

¹ Department of Physics and Astronomy, Laurentian University, Sudbury, ON P3E 2C6, Canada.

PMID: 18851271
DOI: 10.1103/PhysRevLett.101.111301

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 (nu_x) 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)x10(6) cm(-2) s(-1), in agreement with previous measurements and standard solar models. A global analysis of solar and reactor neutrino results yields Deltam2=7.59_-0.21;+0.19x10(-5) eV2 and theta=34.4_-1.2;+1.3 degrees. The uncertainty on the mixing angle has been reduced from SNO's previous results.