Independent Measurement of the Total Active Solar Neutrino Flux Using an Array <?format ?>of Proportional Counters at the Sudbury Neutrino Observatory
B Aharmim, SN Ahmed, JF Amsbaugh, AE Anthony… - Physical Review Letters, 2008 - APS
Physical Review Letters, 2008•APS
The Sudbury Neutrino Observatory (SNO) used an array of He 3 proportional counters to
measure the rate of neutral-current interactions in heavy water and precisely determined the
total active (ν x) B 8 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)× 10 6
cm-2 s-1, in agreement with previous measurements and standard solar models. A global
analysis of solar and reactor neutrino results yields Δ m 2= 7.59-0.21+ 0.19× 10-5 eV 2 and …
measure the rate of neutral-current interactions in heavy water and precisely determined the
total active (ν x) B 8 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)× 10 6
cm-2 s-1, in agreement with previous measurements and standard solar models. A global
analysis of solar and reactor neutrino results yields Δ m 2= 7.59-0.21+ 0.19× 10-5 eV 2 and …
The Sudbury Neutrino Observatory (SNO) used an array of proportional counters to measure the rate of neutral-current interactions in heavy water and precisely determined the total active () solar neutrino flux. This technique is independent of previous methods employed by SNO. The total flux is found to be , in agreement with previous measurements and standard solar models. A global analysis of solar and reactor neutrino results yields and degrees. The uncertainty on the mixing angle has been reduced from SNO’s previous results.
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