Combined analysis of all three phases of solar neutrino data from the Sudbury Neutrino Observatory
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Aharmim_Combined-analysis.pdf
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Author(s)
Formaggio, Joseph A.
Miller, Melanie L.
Monroe, Jocelyn
Solomon-Oblath, Noah
Ott, Richard A.
Sonley, T. J.
Monreal, Benjamin, 1977-
Date Issued
August 2013
Journal
Physical Review C
Publisher
American Physical Society
Citation
Aharmim, B., S. N. Ahmed, A. E. Anthony, N. Barros, E. W. Beier, A. Bellerive, B. Beltran, et al. “Combined analysis of all three phases of solar neutrino data from the Sudbury Neutrino Observatory.” Physical Review C 88, no. 2 (August 2013). © 2013 American Physical Society
Version
Final published version
Abstract
We report results from a combined analysis of solar neutrino data from all phases of the Sudbury Neutrino Observatory (SNO). By exploiting particle identification information obtained from the proportional counters installed during the third phase, this analysis improved background rejection in that phase of the experiment. The combined analysis of the SNO data resulted in a total flux of active neutrino flavors from [superscript 8]B decays in the Sun of (5.25±0.16(stat.)[+0.11 over −0.13](syst.))×10[superscript 6] cm[superscript −2]s[superscript −1], while a two-flavor neutrino oscillation analysis yielded Δm[2 over 21]=(5.6[+1.9 over −1.4])×10[superscript −5] eV[superscript 2] and tan[superscript 2]θ[subscript 12]=0.427[+0.033 over −0.029]. A three-flavor neutrino oscillation analysis combining the SNO result with results of all other solar neutrino experiments and reactor neutrino experiments yielded Δm[2 over 21]=(7.46[+0.20 over −0.19])×10[superscript −5] eV[superscript 2], tan[superscript 2]θ[subscript 12]=0.443[+0.030 over −0.025], and sin[superscript 2]θ[subscript 13]=(2.49[+0.20 over −0.32])×10[superscript −2].
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1103/PhysRevC.88.025501
