Determinations of Vus using inclusive hadronic τ decay data
Why this work is in the frame
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Bibliographic record
Abstract
Two methods for determining [Formula: see text] employing inclusive hadronic [Formula: see text] decay data are discussed. The first is the conventional flavor-breaking sum rule determination whose usual implementation produces results [Formula: see text] low compared to three-family unitary expectations. The second is a novel approach combining experimental strange hadronic [Formula: see text] distributions with lattice light-strange current–current two-point function data. Preliminary explorations of the latter show the method promises [Formula: see text] determinations competitive with those from [Formula: see text] and [Formula: see text]. For the former, systematic issues in the conventional implementation are investigated. Unphysical dependences of [Formula: see text] on the choice of sum rule weight, [Formula: see text], and upper limit, [Formula: see text], of the weighted experimental spectral integrals are observed, the source of these problems identified and a new implementation which overcomes these problems developed. Lattice results are shown to provide a tool for quantitatively assessing truncation uncertainties for the slowly converging [Formula: see text] OPE series. The results for [Formula: see text] from this new implementation are shown to be free of unphysical [Formula: see text]- and [Formula: see text]-dependences, and [Formula: see text] higher than those produced by the conventional implementation. With preliminary new [Formula: see text] branching fraction results as input, we find [Formula: see text] in excellent agreement with that obtained from [Formula: see text], and compatible within errors with expectations from three-family unitarity.
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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 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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