Measurement of the total active⁸B solar neutrino flux at the Sudbury Neutrino Observatory with enhanced neutral current sensitivity

Authors

S. N. Ahmed, Queen’s University
A. E. Anthony, The University of Texas at Austin
E. W. Beier, University of Pennsylvania
A. Bellerive, Carleton University
S. D. Biller, University of Oxford
J. Boger, Brookhaven National Laboratory
M. G. Boulay, Los Alamos National Laboratory
M. G. Bowler, University of Oxford
T. J. Bowles, Los Alamos National Laboratory
S. J. Brice, Los Alamos National Laboratory
T. V. Bullard, University of Washington
Y. D. Chan, Lawrence Berkeley National Laboratory
M. Chen, Queen’s University
X. Chen, Lawrence Berkeley National Laboratory
B. T. Cleveland, University of Oxford
G. A. Cox, University of Washington
X. Dai, Carleton University
F. Dalnoki-Veress, Carleton University
P. J. Doe, University of Washington
R. S. Dosanjh, Carleton University
G. Doucas, University of Oxford
M. R. Dragowsky, Los Alamos National Laboratory
C. A. Duba, University of Washington
F. A. Duncan, Queen’s University
M. Dunford, University of Pennsylvania
J. A. Dunmore, University of Oxford
E. D. Earle, Queen’s University
S. R. Elliott, Los Alamos National Laboratory

Document Type

Article

Publication Date

5-7-2004

Abstract

The measurements performed for determining the total active 8B solar neutrino flux at the Sudbury Neutrino Observatory (SNO) were investigated. The measurements were performed without assumptions about the energy dependence of the survival probability. NaCl dissolved in heavy water was used for making the measurements in order to enhance the sensitivity and signature for neutral-current interactions. The hypothesis of maximal mixing at a confidence level equivalent to 5.4σ was found to be inappropriate by the combined results of global solar and neutrino.

Publication Source (Journal or Book title)

Physical Review Letters

Recommended Citation

Ahmed, S., Anthony, A., Beier, E., Bellerive, A., Biller, S., Boger, J., Boulay, M., Bowler, M., Bowles, T., Brice, S., Bullard, T., Chan, Y., Chen, M., Chen, X., Cleveland, B., Cox, G., Dai, X., Dalnoki-Veress, F., Doe, P., Dosanjh, R., Doucas, G., Dragowsky, M., Duba, C., Duncan, F., Dunford, M., Dunmore, J., Earle, E., & Elliott, S. (2004). Measurement of the total active⁸B solar neutrino flux at the Sudbury Neutrino Observatory with enhanced neutral current sensitivity. Physical Review Letters, 92 (18) https://doi.org/10.1103/PhysRevLett.92.181301