Measurement of the Rate of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi>ν</mml:mi></mml:mrow><mml:mrow><mml:mi>e</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mi/><mml:mo>+</mml:mo><mml:mi/><mml:mi mathvariant="italic">d</mml:mi><mml:mi/><mml:mo>→</mml:mo><mml:mi/><mml:mi mathvariant="italic">p</mml:mi><mml:mi/><mml:mo>+</mml:mo><mml:mi/><mml:mi mathvariant="italic">p</mml:mi><mml:mi/><mml:mo>+</mml:mo><mml:mi/><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="italic">e</mml:mi></mml:mrow><mml:mrow><mml:mo>−</mml:mo></mml:mrow></mml:msup></mml:mrow></mml:math>Interactions Produced by<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>8</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math>Solar Neutrinos at the Sudbury Neutrino Observatory
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A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Machine scores (provisional)
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
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.
- Teacher spread
- 0.231 · how far apart the two teachers sit on this one work
- Validation status
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
Abstract
Solar neutrinos from ${}^{8}\mathrm{B}$ decay have been detected at the Sudbury Neutrino Observatory via the charged current (CC) reaction on deuterium and the elastic scattering (ES) of electrons. The flux of ${\ensuremath{\nu}}_{e}$'s is measured by the CC reaction rate to be ${\ensuremath{\varphi}}^{\mathrm{CC}}({\ensuremath{\nu}}_{e})\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}1.75\ifmmode\pm\else\textpm\fi{}0.07(\mathrm{stat}{)}_{\ensuremath{-}0.11}^{+0.12}(\mathrm{syst})\ifmmode\pm\else\textpm\fi{}0.05(\mathrm{theor})\ifmmode\times\else\texttimes\fi{}{10}^{6}{\mathrm{cm}}^{\ensuremath{-}2}{\mathrm{s}}^{\ensuremath{-}1}$. Comparison of ${\ensuremath{\varphi}}^{\mathrm{CC}}({\ensuremath{\nu}}_{e})$ to the Super-Kamiokande Collaboration's precision value of the flux inferred from the ES reaction yields a $3.3\ensuremath{\sigma}$ difference, assuming the systematic uncertainties are normally distributed, providing evidence of an active non- ${\ensuremath{\nu}}_{e}$ component in the solar flux. The total flux of active ${}^{8}\mathrm{B}$ neutrinos is determined to be $5.44\ifmmode\pm\else\textpm\fi{}0.99\ifmmode\times\else\texttimes\fi{}{10}^{6}{\mathrm{cm}}^{\ensuremath{-}2}{\mathrm{s}}^{\ensuremath{-}1}$.
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The record
- Venue
- Physical Review Letters
- Topic
- Neutrino Physics Research
- Field
- Physics and Astronomy
- Canadian institutions
- Queen's UniversityAtomic Energy (Canada)Carleton UniversityLaurentian UniversityNational Research Council CanadaUniversity of British ColumbiaUniversity of Guelph
- Funders
- —
- Keywords
- PhysicsNeutrinoFlux (metallurgy)ElectronDeuteriumAstrophysicsAnalytical Chemistry (journal)Nuclear physicsChemistry
- Has abstract in OpenAlex
- yes