Measurement of the νe and total 8B solar neutrino fluxes with the Sudbury Neutrino Observatory phase-III data set

Authors

B. Aharmim, Laurentian University
S. N. Ahmed, Queen’s University
J. F. Amsbaugh, University of Washington
J. M. Anaya, Los Alamos National Laboratory
A. E. Anthony, The University of Texas at Austin
J. Banar, Los Alamos National Laboratory
N. Barros, Laboratório de Instrumentacao e Física Experimental de Partículas
E. W. Beier, University of Pennsylvania
A. Bellerive, Carleton University
B. Beltran, University of Alberta
M. Bergevin, University of Guelph
S. D. Biller, University of Oxford
K. Boudjemline, Carleton University
M. G. Boulay, Queen’s University
T. J. Bowles, Los Alamos National Laboratory
M. C. Browne, Los Alamos National Laboratory
T. V. Bullard, University of Washington
T. H. Burritt, University of Washington
B. Cai, Queen’s University
Y. D. Chan, Lawrence Berkeley National Laboratory
D. Chauhan, Laurentian University
M. Chen, Queen’s University
B. T. Cleveland, University of Oxford
G. A. Cox, University of Washington
C. A. Currat, Lawrence Berkeley National Laboratory
X. Dai, Carleton University
H. Deng, University of Pennsylvania
J. A. Detwiler, Lawrence Berkeley National Laboratory

Document Type

Article

Publication Date

1-18-2013

Abstract

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 3He 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 8B 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.)×106 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 Δm2=7.59-0.21+0.19×10 -5eV2 and θ=34.4-1.2+1.3degrees. © 2013 American Physical Society.

Publication Source (Journal or Book title)

Physical Review C - Nuclear Physics

Recommended Citation

Aharmim, B., Ahmed, S., Amsbaugh, J., Anaya, J., Anthony, A., Banar, J., Barros, N., Beier, E., Bellerive, A., Beltran, B., Bergevin, M., Biller, S., Boudjemline, K., Boulay, M., Bowles, T., Browne, M., Bullard, T., Burritt, T., Cai, B., Chan, Y., Chauhan, D., Chen, M., Cleveland, B., Cox, G., Currat, C., Dai, X., Deng, H., & Detwiler, J. (2013). Measurement of the νe and total 8B solar neutrino fluxes with the Sudbury Neutrino Observatory phase-III data set. Physical Review C - Nuclear Physics, 87 (1) https://doi.org/10.1103/PhysRevC.87.015502