"Figure A6 left" of "Search for long-lived particles decaying to a pair of muons in proton-proton collisions at $\sqrt{s}$ = 13 TeV"

Overall signal efficiencies as a function of $c\tau$ for the $\Phi \rightarrow XX \rightarrow 4\mu$ signal process with $m(\Phi) = 200\ GeV$ and $m(X) = 20\ GeV$. The figure shows efficiencies in the three dimuon categories, STA-STA (green), TMS-TMS (red), and STA-TMS (blue), as well as the combined efficiency (black) calculated as the sum of the efficiencies of the individual categories. The signal efficiencies for the 2016 and 2018 datasets are shown as dashed and solid lines, respectively.

对于m(Φ)=200 GeV且m(X)=20 GeV的Φ→XX→4μ信号过程，整体信号效率随cτ的变化关系。该图展示了三种双μ子类别（dimuon categories）下的效率——STA-STA（绿色）、TMS-TMS（红色）和STA-TMS（蓝色），以及通过各单独类别效率之和计算得到的综合效率（黑色）。2016年和2018年数据集的信号效率分别以虚线和实线表示。