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Fig. 4. Concepts of boosted decision tree with B0l+τ(l=e,μ) decay. S/(S+B) is a signal efficiency which presents the separation of signal and background. The numbers here show an example of cut variables.
New Phys.: Sae Mulli 2022;72:564~572 https://doi.org/10.3938/NPSM.72.564
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