"High-NN score SR 0b qqbb postfit" of "Search for a heavy charged Higgs boson decaying into a $W$ boson and a Higgs boson in final states with leptons and $b$-jets in $\sqrt{s} = 13$ TeV $pp$ collisions with the ATLAS detector"

The mWh distributions in the High-NN-score SRs of the merged qqbb 0b event categories. The term ‘Others’ summarises events from tHjb, tWh, tttt, and SM Vh production. The background prediction is shown after a background-only maximum-likelihood fit to data. The individual background uncertainty does not take into account the possible correlations between the nuisance parameter. The expected signal contributions assuming $m_{H^{\pm}}$ = 900 GeV and $m_{H^{\pm}}$ = 2000 GeV, normalised the expected limit of the cross-section times branching ratio ($\sigma_{sig}$ × B) values of 0.036 pb and 2.7 fb respectively, are shown as dashed histograms.

合并的qqbb零b喷注事件类别中，高神经网络得分信号区（Signal Regions，SRs）内的mWh分布。术语"Others"汇总了tHjb、tWh、tttt以及标准模型Vh产生过程的事件。背景预测是在仅针对数据开展仅背景最大似然拟合后得到的结果。单个背景的不确定性未考虑干扰参数（nuisance parameter）之间可能存在的关联。针对带电希格斯玻色子质量$m_{H^{pm}}$分别为900 GeV和2000 GeV的情况，其预期信号贡献已分别按截面乘以分支比（$sigma_{ ext{sig}} imes B$）的预期极限值（分别为0.036 pb和2.7 fb）进行归一化，以虚线直方图形式展示。