Understanding the mirror asymmetry in Gamow-Teller transition rates between <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mmultiscripts> <mml:mi>Al</mml:mi> <mml:mprescripts/> <mml:none/> <mml:mn>28</mml:mn> </mml:mmultiscripts> <mml:mo>(</mml:mo> <mml:msup> <mml:mi>β</mml:mi> <mml:mo>−</mml:mo> </mml:msup> <mml:mo>)</mml:mo> <mml:mmultiscripts> <mml:mi>Si</mml:mi> <mml:mprescripts/> <mml:none/> <mml:mrow> <mml:mn>28</mml:mn> <mml:mi>m</mml:mi> </mml:mrow> </mml:mmultiscripts> </mml:mrow> </mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mmultiscripts> <mml:mi mathvariant="normal">P</mml:mi> <mml:mprescripts/> <mml:none/> <mml:mn>28</mml:mn> </mml:mmultiscripts> <mml:mo>(</mml:mo> <mml:msup> <mml:mi>β</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>)</mml:mo> <mml:mmultiscripts> <mml:mi>Si</mml:mi> <mml:mprescripts/> <mml:none/> <mml:mrow> <mml:mn>28</mml:mn> <mml:mi>m</mml:mi> </mml:mrow> </mml:mmultiscripts> </mml:mrow> </mml:math>
Bibliographic record
Abstract
The long-standing discrepancy between shell-model and experimental values of the mirror asymmetry in Gamow-Teller transition rates for $^{28}\mathrm{Al}({\ensuremath{\beta}}^{\ensuremath{-}})^{28m}\mathrm{Si}$ and $^{28}\mathrm{P}({\ensuremath{\beta}}^{+})^{28m}\mathrm{Si}$ is partially resolved by integrating the $p$-orbital contribution into the radial mismatch correction term. This approach offers a potential estimate of the radial mismatch-induced core-orbital contribution based on the French-Macfarlane sum rules, avoiding the need for heavy calculations required by the first-principle shell model. Additionally, the isospin-mixing contribution undergoes considerable improvement through scaling the calculated isospin-mixing correction with the experimental energy separation between the lowest two admixed states, in accordance with results from the two-level model.
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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 | 0.014 | 0.011 |
| Meta-epidemiology (narrow) | 0.010 | 0.018 |
| Meta-epidemiology (broad) | 0.004 | 0.016 |
| Bibliometrics | 0.006 | 0.011 |
| Science and technology studies | 0.014 | 0.016 |
| Scholarly communication | 0.015 | 0.014 |
| Open science | 0.019 | 0.018 |
| Research integrity | 0.016 | 0.018 |
| Insufficient payload (model declined to judge) | 0.311 | 0.014 |
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; both teacher heads agree on what is shown here.
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".