Table 7.

Predicted (post-fit) and observed event yields for the signal region (SR), after the requirement on the neural network discriminant, $O_{\text{NN}}>0.8$. The multijet background prediction is obtained from the fit to the $E_{\text{T}}^{\text{miss}}$ distribution described in Sect. 6, while all the other predictions and uncertainties are derived from the total cross-section measurement. An uncertainty of 0 means that the value is $<0.5$

Process	${\ell }^{+}$ SR $(O_{\text{NN}}>0.8)$	${\ell }^{-}$ SR $(O_{\text{NN}}>0.8)$
$tq$	4470 ± 180	5 ± 0
$\overline{t}q$	3 ± 0	2270 ± 130
$t\overline{t},Wt,t\overline{b}/\overline{t}b$	754 ± 45	753 ± 45
$W^{+}$ + jets	960 ± 190	1 ± 0
$W^{-}$ + jets	1 ± 0	610 ± 120
Z, VV + jets	52 ± 10	60 ± 12
Multijet	291 ± 46	267 ± 39
Total estimated	6540 ± 270	3960 ± 190
Data	6567	4007