A low energy measurement of the B solar neutrino spectrum at the Sudbury Neutrino Observatory
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Bibliographic record
Abstract
The Sudbury Neutrino Observatory has previously shown that 8 B solar neutrinos undergo flavor transformation between the Sun and the Earth.This work presents a joint analysis of one-third of the pure D 2 O and salt phase data sets with an electron energy threshold of 3.5 MeV.A measurement of the neutral current interaction rate, sensitive to all neutrino flavors, gives a total 8 B flux of 4.79 0.22 (stat) 0.13(syst) 10 6 cm -2 s -1 .This is in agreement with the prediction of the Standard Solar Model.For the first time we obtain the e survival probability separately for downward-going (day) and upward-going (night) solar neutrinos.No significant distortion is observed day or night for 8 B neutrinos with energies greater viii than 6 MeV.The lack of distortion, but overall suppression of electron neutrinos relative to the total flux, is consistent with matter-induced neutrino transformation in the Sun and the large mixing angle solution.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.003 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it