"Table 4 Acceptance and efficiency of this analysis." of "Search for exotic decays of the Higgs boson into $b\bar{b}$ and missing transverse momentum in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector"

Acceptance and efficiency of this analysis for the signal models considered in this paper. The signal is an NMSSM scenario with $pp \rightarrow ZH$, $Z \rightarrow \ell^{+}\ell^{-}$, $H \rightarrow \tilde{\chi}{2}^{0}\tilde{\chi}{1}^{0} \rightarrow a \tilde{\chi}{1}^{0}\tilde{\chi}{1}^{0} \rightarrow b\bar{b} \tilde{\chi}{1}^{0}\tilde{\chi}{1}^{0}$ where the values of $(m_{a}, m_{\tilde{\chi}{1}^{0}}, m{\tilde{\chi}_{2}^{0}})$ are varied. The Z boson decays to $e^{+}e^{-}, \mu^{+}\mu^{-} ;\mathrm{or}; \tau^{+}\tau^{-}$. All branching ratios in the Higgs boson decay chain are set to 100%. The product of acceptance times efficiency is defined by the fraction of simulated events that pass all the selection criteria of this analysis. The acceptance is defined by the fraction of simulated events that pass all the selection criteria as applied to Monte Carlo truth-level quantities. The efficiency is then defined as the acceptance times efficiency, divided by the acceptance.