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\begin{table}[hhh]
\begin{center}
\begin{tabular}{|c|c|c|c|c||} \hline
 & \multicolumn{2}{|c|}{W search cuts and $P_T^X>25$~GeV} &  \multicolumn{2}{c|}{Top selection}  \\ \hline 
 &  Electron Channel &  Muon Channel
 &  Electron Channel &  Muon Channel \\
 \hline \hline
Data           & 0               &0    &  0   &  0  \\ \hline \hline
Total SM       & $0.26  \pm 0.06 $  & $ 0.20 \pm 0.06 $ & $0.13\pm0.04$&
$0.12\pm0.03$ \\ \hline
$W$ only & $0.16  \pm 0.05 $  & $ 0.18 \pm 0.07$  & $0.07\pm0.02$&
$0.10\pm0.03$\\ \hline
Top efficiency & 43\%   & 51\%  & 37\% & 45\% \\ \hline
\end{tabular}
\caption{Observed and predicted number of events with isolated leptons and missing transverse momentum for $e^-p$ data in $13.6$ pb$^{-1}$ }
\label{tableback2}
\end{center}
\end{table}
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