Amplitude analysis of the decay<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi>D</mml:mi><mml:mn>0</mml:mn></mml:msup><mml:mo>→</mml:mo><mml:msup><mml:mi>K</mml:mi><mml:mo>−</mml:mo></mml:msup><mml:msup><mml:mi>K</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:msup><mml:mi>π</mml:mi><mml:mn>0</mml:mn></mml:msup></mml:math>
Why this work is in the frame
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Bibliographic record
Abstract
Using $385\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of ${e}^{+}{e}^{\ensuremath{-}}$ collisions, we study the amplitudes of the singly Cabibbo-suppressed decay ${D}^{0}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{K}^{+}{\ensuremath{\pi}}^{0}$. We measure the strong phase difference between the ${\overline{D}}^{0}$ and ${D}^{0}$ decays to ${K}^{*}(892{)}^{+}{K}^{\ensuremath{-}}$ to be $\ensuremath{-}35.5\ifmmode^\circ\else\textdegree\fi{}\ifmmode\pm\else\textpm\fi{}1.9\ifmmode^\circ\else\textdegree\fi{}(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}2.2\ifmmode^\circ\else\textdegree\fi{}(\mathrm{syst})$, and their amplitude ratio to be $0.599\ifmmode\pm\else\textpm\fi{}0.013(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.011(\mathrm{syst})$. We observe contributions from the $K\ensuremath{\pi}$ and ${K}^{\ensuremath{-}}{K}^{+}$ scalar and vector amplitudes, and analyze their angular moments. We find no evidence for charged $\ensuremath{\kappa}$, nor for higher spin states. We also perform a partial-wave analysis of the ${K}^{\ensuremath{-}}{K}^{+}$ system in a limited mass range.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.002 | 0.003 |
| Meta-epidemiology (broad) | 0.002 | 0.004 |
| Bibliometrics | 0.001 | 0.003 |
| Science and technology studies | 0.004 | 0.004 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.003 | 0.002 |
| Research integrity | 0.003 | 0.004 |
| Insufficient payload (model declined to judge) | 0.006 | 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