ABCD Plane
Heatmap (Background + Signal overlay)
Background (sum)
Signal
Cuts (xCut, yCut)
Validation split (xSplit)
Transfer factor diagnostic
Plot C/D vs y-slice (y<yCut). Trends mean non-factorization.
Cuts
60
50
40
60
Run
 = (C/D)·B
—
κ = AD/(BC)
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VR non-closure
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Results
Main ABCD (A/B/C/D)
| Region | Total | Bkg | Sig |
|---|---|---|---|
| A | — | — | — |
| B | — | — | — |
| C | — | — | — |
| D | — | — | — |
Validation ABCD (A′/B′/C′/D′)
| Region | Total | Bkg | Sig |
|---|---|---|---|
| A′ | — | — | — |
| B′ | — | — | — |
| C′ | — | — | — |
| D′ | — | — | — |
Generate data → set cuts → Compute ABCD. Use Validation to estimate a non-closure systematic if needed.