"Table 15" of "Search for heavy particles decaying into a top-quark pair in the fully hadronic final state in $pp$ collisions at $\sqrt{s} =13$ TeV with the ATLAS detector"

Observed top-quark mass distribution and expected background in Region SR2 Tight 2b after the fit (Post-Fit) under the background-only hypothesis for the boosted analysis.

针对增强型分析(boosted analysis)，在仅本底假设下完成拟合后（Post-Fit），SR2紧选2b区域内的观测顶夸克质量分布与预期本底。