New empirical fits to the proton electromagnetic form factors
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Bibliographic record
Abstract
Recent measurements of the ratio of the elastic electromagnetic form factors of the proton, ${G}_{\mathrm{Ep}}{/G}_{\mathrm{Mp}},$ using the polarization transfer technique at Jefferson Lab, show that this ratio decreases dramatically with increasing ${Q}^{2},$ in contradiction to previous measurements using the Rosenbluth separation technique. Using these new high quality data as a constraint, we have reanalyzed most of the world $\mathrm{ep}$ elastic cross section data. In this paper, we present a new empirical fit to the reanalyzed data for the proton elastic magnetic form factor in the region $0<{Q}^{2}<30 {\mathrm{GeV}}^{2}.$ As well, we present an empirical fit to the proton electromagnetic form factor ratio, ${G}_{\mathrm{Ep}}{/G}_{\mathrm{Mp}},$ which is valid in the region $0.1<{Q}^{2}<6 {\mathrm{GeV}}^{2}.$
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 it