Observation of B+âηÏ+ and search for B0 decays to ηâ²Î·, ηÏ0, ηâ²Ï0, and ÏÏ0
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Bibliographic record
Abstract
We present measurements of branching fractions for five B-meson decays to two-body charmless final states. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 459Ã106 BBÌ pairs. The results for branching fractions are, in units of 10-6 (upper limits at 90% C.L.), B(B+âηÏ+)=9.9±1.2±0.8, B(B0âηⲠη)=0.5±0.4±0.1( < 1.2), B(B0âηÏ0)=0.9±0. 4±0.1( < 1.5), B(B0âηâ²Ï0)=0.9±0.4±0. 1( < 1.5), and B(B0âÏÏ0)=0.07±0.26±0.02( < 0.5). The first error quoted is statistical and the second systematic. For the ηÏ+ mode, we measure the charge asymmetry Ach(B+âηÏ+)=0. 13±0.11±0.02. © 2008 The American Physical Society.
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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 | 0.002 |
| Open science | 0.000 | 0.000 |
| 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