Lamb shift in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">He</mml:mi></mml:mrow><mml:mrow><mml:mo>+</mml:mo></mml:mrow></mml:msup></mml:mrow><mml:mo>:</mml:mo></mml:math> Resolution of a discrepancy between theory and experiment
Why this work is in the frame
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Bibliographic record
Abstract
An earlier measurement of the ${2}^{2}{S}_{1/2}--{2}^{2}{P}_{1/2}$ Lamb shift in ${\mathrm{He}}^{+}$ by the anisotropy method is repeated in order to either verify or remove a significant discrepancy between theory and experiment. The principal change from our previous measurement is a redesigned photon detection system to eliminate a residual polarization sensitivity of the photon detectors. The result of the measurement corresponds to a Lamb shift of 14 041.13(17) MHz, in excellent agreement with the theoretical value 14 041.18(13) MHz. The good agreement between theory and experiment provides a clear test of the recently calculated two-loop binding correction of $\ensuremath{-}1.339 \mathrm{MHz}.$
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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 | 0.003 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.002 |
| Meta-epidemiology (broad) | 0.001 | 0.003 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.002 | 0.002 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.138 | 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