High Energy Physics - Phenomenology · arXiv:hep-ph/9711248 v2 · submitted 6 Nov 1997
Comment on Vub from Exclusive Semileptonic B and D Decays
The paper says
“Combining experimental data obtainable from (B->rho l nu), (B->K* l l) and (D->rho l nu) can lead to a model independent determination of |Vub| with an uncertainty from theory of about 10%.”
from the abstract · picked out as the main claim by a classifier
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The paper
Abstract
The prospects for determining |Vub| from exclusive B semileptonic decay are discussed. The double ratio of form factors (fB → ρ/fB → K*)/(fD → ρ/fD → K*) is calculated using chiral perturbation theory. Its deviation from unity due to contributions that are non-analytic in the symmetry breaking parameters is very small. Combining experimental data obtainable from (B->rho l nu), (B->K* l l) and (D->rho l nu) can lead to a model independent determination of |Vub| with an uncertainty from theory of about 10%.
The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. No sentence in this record was written by a model.
abstract compiled · 2026-09-23 · no language-model review
How the main claim is stated: hedged possibility 0.99
What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.49 · human participants 0.02 · controlled comparison 0.08 · randomized assignment 0.01 · states quantitative result 0.95 · compares with prior results 0.34 · mentions code or data availability 0.02
The abstract, sentence by sentence
This table labels the abstract only (arXiv listing abstract v2). The number is the probability the classifier gave the label.
| Sentence | Role | The authors' own work | States the main conclusion | Strength |
|---|---|---|---|---|
| The prospects for determining $|V_{ub}|$ from exclusive B semileptonic decay are discussed. | background 0.72 | 0.20 | 0.06 | unclear 0.62 |
| The double ratio of form factors $(f^{B\to\rho}/f^{B\to K^*})/ (f^{D\to\rho}/f^{D\to K^*})$ is calculated using chiral perturbation theory. | method 0.74 | 0.87 | 0.06 | asserted 1.00 |
| Its deviation from unity due to contributions that are non-analytic in the symmetry breaking parameters is very small. | result 0.97 | 0.72 | 0.09 | asserted 1.00 |
| Combining experimental data obtainable from (B->rho l nu), (B->K* l l) and (D->rho l nu) can lead to a model independent determination of $|V_{ub}|$ with an uncertainty from theory of about 10%. | result 0.66 | 0.49 | 0.87 | hedged possibility 0.99 |
What kind of paper the classifier reports this is: position or commentary 0.52 · evidence from proof or derivation 0.78
What was examined, and what was not
Sources read
- arXiv listing abstract v2
Not examined
- full text
- figures and tables
- references and citing sentences
- relations to other papers
Levels run
- P abstract
Not run
- S sections
- T body sentences
- C citations
- R cross-paper relations
How the labels were made
Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,699 input tokens, $0.0002 reported.
Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. This record as JSON
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