Table 4.

The selection criteria used to define the signal regions

	$2{\ell }^{\text{ss}}$			$3\ell$		$4\ell$
Selection criteria	$e^{\pm }{e}^{\pm }$	$e^{\pm }{\mu }^{\pm }$	${\mu }^{\pm }{\mu }^{\pm }$	SFOS 0	SFOS 1,2
$m_{H^{\pm \pm }}=200$ GeV
$E_{\text{T}}^{\text{miss}}$ [GeV]	$>100$	$>100$	$>100$	$>45$	$>45$	$>60$
$m_{x\ell }$ [GeV]	[25, 130]	[15, 150]	[35, 150]	$>160$	$>170$	$>230$
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}$[rad.]	$<0.8$	$<1.8$	$<0.9$	[0.15, 1.57]	[0.00, 1.52]
$\mathrm{\Delta }\varphi (\ell \ell ,E_{\text{T}}^{\text{miss}})$ [rad.]	$<1.1$	$<1.3$	$<1.3$
S [rad.]	$<0.3$	$<0.3$	$<0.2$
$m_{\mathrm{jets}}$ [GeV]	[140, 770]	[95, 330]	[95, 640]
$\mathrm{\Delta }{R}_{\ell -\mathrm{jet}}$ [rad.]				[0.08, 1.88]	[0.07, 1.31]
$p_{\mathrm{T}}^{\text{leading jet}}$ [GeV]				$>80$	$>55$
$p_{\mathrm{T}}^{{\ell }_1}$ [GeV]						$>65$
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}^{\text{min}}$ [rad.]						[0.16, 1.21]
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}^{\text{max}}$ [rad.]						[0.27, 2.03]
$m_{H^{\pm \pm }}=300$ GeV
$E_{\text{T}}^{\text{miss}}$ [GeV]	$>200$	$>200$	$>200$	$>65$	$>55$	$>60$
$m_{x\ell }$ [GeV]	[105, 340]	[80, 320]	[80, 320]	$>170$	$>210$	$>270$
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}$ [rad.]	$<1.4$	$<1.8$	$<1.8$	[0.18, 2.23]	[0.08, 2.23]
$\mathrm{\Delta }\varphi (\ell \ell ,E_{\text{T}}^{\text{miss}})$ [rad.]	$<2.1$	$<2.4$	$<2.4$
S [rad.]	$<0.4$	$<0.4$	$<0.4$
$m_{\mathrm{jets}}$ [GeV]	[180, 770]	[130, 640]	[130, 640]
$\mathrm{\Delta }{R}_{\ell j}$ [rad.]				[0.27, 2.37]	[0.21, 2.08]
$p_{\mathrm{T}}^{\text{leading jet}}$ [GeV]				$>95$	$>80$
$p_{\mathrm{T}}^{{\ell }_1}$ [GeV]						$>45$
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}^{\text{min}}$ [rad.]						[0.09, 1.97]
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}^{\text{max}}$ [rad.]						[0.44, 2.68]
$m_{H^{\pm \pm }}=400$ GeV
$E_{\text{T}}^{\text{miss}}$ [GeV]	$>200$	$>200$	$>200$	$>65$	$>85$	$>60$
$m_{x\ell }$ [GeV]	[105, 340]	[80, 350]	[80, 350]	$>230$	$>250$	$>270$
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}$ [rad.]	$<2.2$	$<1.8$	$<1.8$	[0.22, 2.39]	[0.29, 2.69]
$\mathrm{\Delta }\varphi (\ell \ell ,E_{\text{T}}^{\text{miss}})$ [rad.]	$<2.4$	$<2.4$	$<2.4$
S [rad.]	$<0.6$	$<0.6$	$<0.5$
$m_{\mathrm{jets}}$ [GeV]	[280, 1200]	[220, 1200]	[220, 1200]
$\mathrm{\Delta }{R}_{\ell j}$ [rad.]				[0.30, 2.59]	[0.31, 2.30]
$p_{\mathrm{T}}^{\text{leading jet}}$ [GeV]				$>120$	$>100$
$p_{\mathrm{T}}^{{\ell }_1}$ [GeV]						$>110$
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}^{\text{min}}$ [rad.]						[0.39, 2.22]
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}^{\text{max}}$ [rad.]						[0.55, 2.90]
$m_{H^{\pm \pm }}=500$–700 GeV
$E_{\text{T}}^{\text{miss}}$ [GeV]	$>250$	$>250$	$>250$	$>120$	$>100$	$>60$
$m_{x\ell }$ [GeV]	[105, 730]	[110, 440]	[110, 440]	$>230$	$>300$	$>370$
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}$ [rad.]	$<2.6$	$<2.2$	$<2.2$	[0.39, 3.11]	[0.29, 2.85]
$\mathrm{\Delta }\varphi (\ell \ell ,E_{\text{T}}^{\text{miss}})$ [rad.]	$<2.6$	$<2.4$	$<2.4$
S [rad.]	$<1.1$	$<1.1$	$<1.1$
$m_{\mathrm{jets}}$ [GeV]	$>440$	$>470$	$>470$
$\mathrm{\Delta }{R}_{\ell j}$ [rad.]				[0.60, 2.68]	[0.31, 2.53]
$p_{\mathrm{T}}^{\text{leading jet}}$ [GeV]				$>130$	$>130$
$p_{\mathrm{T}}^{{\ell }_1}$ [GeV]						$>160$
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}^{\text{min}}$ [rad.]						[0.53, 3.24]
$\mathrm{\Delta }{R}_{{\ell }^{\pm }{\ell }^{\pm }}^{\text{max}}$ [rad.]						[0.59, 2.94]

The variables are described in Sect. 5