Parity-violating inelastic electron-proton scattering at low <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mi>Q</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:math> above the resonance region
Bibliographic record
Abstract
We report the measurement of the parity-violating asymmetry for the inelastic scattering of electrons from the proton, at ${Q}^{2}=0.082\phantom{\rule{4pt}{0ex}}{\mathrm{GeV}}^{2}$ and $W=2.23$ GeV, above the resonance region. The result ${A}_{\mathrm{Inel}}=\ensuremath{-}13.5\ifmmode\pm\else\textpm\fi{}2.0(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}3.9(\mathrm{syst})$ ppm agrees with theoretical calculations, and helps to validate the modeling of the $\ensuremath{\gamma}Z$ interference structure functions ${F}_{1}^{\ensuremath{\gamma}Z}$ and ${F}_{2}^{\ensuremath{\gamma}Z}$ used in those calculations, which are also used for determination of the two-boson exchange $\ensuremath{\gamma}\text{\ensuremath{-}}Z$ box diagram (${\ensuremath{\square}}_{\ensuremath{\gamma}Z}$) contribution to parity-violating elastic scattering measurements. A positive parity-violating asymmetry for inclusive ${\ensuremath{\pi}}^{\ensuremath{-}}$ production was observed, as well as positive beam-normal single-spin asymmetry for scattered electrons and a negative beam-normal single-spin asymmetry for inclusive ${\ensuremath{\pi}}^{\ensuremath{-}}$ production.
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How this classification was reachedexpand
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 | 0.001 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.002 |
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".