Table 5.

Event yields in the signal regions of corresponding targeted masses of $H^{\pm \pm }$

	$2{\ell }^{\text{ss}}$			$3\ell$		$4\ell$
Subchannel	$e^{\pm }{e}^{\pm }$	$e^{\pm }{\mu }^{\pm }$	${\mu }^{\pm }{\mu }^{\pm }$	SFOS 0	SFOS 1,2
$m_{H^{\pm \pm }}=200$ GeV
Prompt lepton	$0.5\pm 0.2$	$0.3\pm 0.2$	$1.3\pm 0.6$	$0.3\pm 0.1$	$1.4\pm 0.5$	$0.07\pm 0.03$
QMisID	$0.6\pm 0.2$	$0.4\pm 0.1$	−	−	−	−
Fake lepton	$1\pm 1$	$<0.4$	$0.4\pm 0.3$	$0.2\pm 0.1$	$0.2\pm 0.1$	$0.03\pm 0.02$
Total background	$2\pm 1$	$0.6\pm 0.3$	$1.7\pm 0.7$	$0.5\pm 0.1$	$1.7\pm 0.6$	$0.11\pm 0.05$
Signal	$1.1\pm 0.2$	$2.3\pm 0.4$	$2.4\pm 0.4$	$1.8\pm 0.3$	$5.0\pm 0.9$	$1.1\pm 0.2$
A [%]	0.037	0.080	0.082	0.061	0.17	0.038
$n_{95}$	12.3	7.1	7.5	4.1	7.7	3.8
Data	3	2	2	1	2	0
$m_{H^{\pm \pm }}=300$ GeV
Prompt lepton	$0.1\pm 0.1$	$0.9\pm 0.4$	$0.02\pm 0.02$	$0.4\pm 0.1$	$4\pm 1$	$0.3\pm 0.1$
QMisID	$0.1\pm 0.1$	$0.07\pm 0.04$	−	−	−	−
Fake lepton	$0.4\pm 0.5$	$<0.2$	$<0.4$	$0.3\pm 0.2$	$0.8\pm 0.4$	$0.2\pm 0.2$
Total background	$0.7\pm 0.5$	$1.0\pm 0.5$	$0.02\pm 0.02$	$0.8\pm 0.2$	$5\pm 2$	$0.5\pm 0.2$
Signal	$0.16\pm 0.03$	$0.6\pm 0.1$	$0.29\pm 0.05$	$0.6\pm 0.1$	$1.8\pm 0.3$	$0.43\pm 0.08$
A [%]	0.027	0.10	0.049	0.11	0.30	0.071
$n_{95}$	4.0	9.6	3.0	3.1	22.7	3.8
Data	0	3	0	0	11	0
$m_{H^{\pm \pm }}=400$ GeV
Prompt lepton	$0.7\pm 0.3$	$1.0\pm 0.4$	$0.2\pm 0.1$	$0.3\pm 0.1$	$4\pm 1$	$0.3\pm 0.1$
QMisID	$0.3\pm 0.1$	$0.2\pm 0.1$	−	−	−	−
Fake lepton	$0.4\pm 0.5$	$<0.3$	$<0.4$	$0.3\pm 0.2$	$0.2\pm 0.1$	$0.05\pm 0.04$
Total background	$1.4\pm 0.6$	$1.2\pm 0.5$	$0.3\pm 0.1$	$0.6\pm 0.2$	$4\pm 1$	$0.4\pm 0.1$
Signal	$0.20\pm 0.04$	$0.38\pm 0.07$	$0.19\pm 0.03$	$0.23\pm 0.04$	$0.6\pm 0.1$	$0.17\pm 0.03$
A [%]	0.11	0.21	0.11	0.13	0.36	0.092
$n_{95}$	10.4	18.3	6.4	3.1	10.4	4.3
Data	2	6	1	0	4	1
$m_{H^{\pm \pm }}=500$ GeV
Prompt lepton	$1.0\pm 0.4$	$0.7\pm 0.3$	$0.3\pm 0.2$	$0.4\pm 0.1$	$3\pm 1$	$0.2\pm 0.1$
QMisID	$0.3\pm 0.1$	$0.2\pm 0.1$	−	−	−	−
Fake lepton	$0.2\pm 0.5$	$0.3\pm 0.5$	$<0.4$	$0.11\pm 0.06$	$0.10\pm 0.05$	$0.2\pm 0.2$
Total background	$1.6\pm 0.6$	$1.2\pm 0.6$	$0.3\pm 0.2$	$0.5\pm 0.1$	$3.0\pm 0.8$	$0.4\pm 0.2$
Signal	$0.10\pm 0.02$	$0.16\pm 0.03$	$0.07\pm 0.01$	$0.09\pm 0.02$	$0.24\pm 0.04$	$0.06\pm 0.01$
A [%]	0.16	0.25	0.11	0.14	0.37	0.098
A [%] $m_{H^{\pm \pm }}=600$ GeV	0.22	0.36	0.16	0.17	0.44	0.11
A [%] $m_{H^{\pm \pm }}=700$ GeV	0.26	0.38	0.17	0.19	0.48	0.12
$n_{95}$	8.6	12.7	3.8	3.0	7.9	4.9
Data	4	3	0	0	2	3

The signal yield is for the corresponding mass point and is normalised to the luminosity of $36.1{\text{fb}}^{-1}$. The dominant background from prompt-lepton sources is from the WZ process in the $2{\ell }^{\text{ss}}$ channel. For the $3\ell$ and $4\ell$ channels, the dominant background from prompt-lepton sources is from WZ and $t\overline{t}V$ processes. The overall signal acceptance A and the upper limit of extra contribution to each signal region at 95% confidence level $n_{95}$ are also presented. The data and SM prediction yields obtained for $m_{H^{\pm \pm }}=500$ GeV are also valid for $m_{H^{\pm \pm }}=600$ and 700 GeV