Combination of inclusive and differential t(t)over-bar charge asymmetry measurements using ATLAS and CMS data at root S =7 and 8 TeV
Bibliographic record
Abstract
This paper presents combinations of inclusive and differential measurements\nof the charge asymmetry ($A_{\\mathrm{C}}$) in top quark pair\n($\\mathrm{t}\\overline{\\mathrm{t}}$) events with a lepton+jets signature by the\nATLAS and CMS Collaborations, using data from LHC proton-proton collisions at\ncentre-of-mass energies of 7 and 8 TeV corresponding to integrated luminosities\nof about 5 and 20 fb$^{-1}$ for each experiment, respectively. The resulting\ncombined LHC measurements of the inclusive charge asymmetry are\n$A_{\\mathrm{C}}^{\\mathrm{LHC7}} = 0.005 \\pm0.007 \\text{ (stat)}\\pm0.006 \\text{\n(syst)}$ at 7 TeV and $A_{\\mathrm{C}}^{\\mathrm{LHC8}} = 0.0055 \\pm0.0023\\text{\n(stat)}\\pm0.0025\\text{ (syst)}$ at 8 TeV. These values, as well as the\ncombination of $A_{\\mathrm{C}}$ measurements as a function of the invariant\nmass of the $\\mathrm{t}\\overline{\\mathrm{t}}$ system at 8 TeV, are consistent\nwith the respective standard model predictions.
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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 | 0.000 | 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 | 0.001 | 0.002 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.005 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".