Measurement of theνeand total8B solar neutrino fluxes with the Sudbury Neutrino Observatory phase-III data set
High Energy Physics - Experiment (hep-ex)
Astrophysics - Solar and Stellar Astrophysics
0103 physical sciences
FOS: Physical sciences
Nuclear Experiment (nucl-ex)
Nuclear Experiment
01 natural sciences
7. Clean energy
Solar and Stellar Astrophysics (astro-ph.SR)
High Energy Physics - Experiment
DOI:
10.1103/physrevc.87.015502
Publication Date:
2013-01-19T08:51:40Z
AUTHORS (150)
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 $^3$He 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 $^8$B solar neutrino flux was largely independent of the methods employed in previous phases. The total flux of active neutrinos was measured to be $5.54^{+0.33}_{-0.31}(stat.)^{+0.36}_{-0.34}(syst.)\times 10^{6}$ 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 $��m^2 = 7.59^{+0.19}_{-0.21}\times 10^{-5}{eV}^2$ and $��= 34.4^{+1.3}_{-1.2}$ degrees.<br/>104 pages, 26 figures, 20 tables, submitted to Phys. Rev. C<br/>
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