Table 2.

Event classes for the 7 and 8$\text{TeV}$datasets and some of their main selection requirements

Label	No. of classes		Main requirements
	7$\text{TeV}$	8$\text{TeV}$
$\text{t}\overline{\text{t}}\text{H}$  lepton tag	${}^{\ast }$	1	$p_{\mathrm{T}}^{\mathit{\gamma }1}>m_{\mathit{\gamma }\mathit{\gamma }}/2$
			1 b-tagged jet + 1 electron or muon
VH tight $\ell$ tag	1	1	$p_{\mathrm{T}}^{\mathit{\gamma }1}>3m_{\mathit{\gamma }\mathit{\gamma }}/8$
			[$\mathrm{e}$ or $\mathit{\mu }$, $p_{\mathrm{T}}>20\text{GeV}$, and $E_{\mathrm{T}}^{\text{miss}}>45\text{GeV}$] or
			[$2\mathrm{e}$ or $2\mathit{\mu }$, $p_{\mathrm{T}}{}^{\ell }>10\text{GeV}$; $70<m_{\ell \ell }<110\text{GeV}$]
VH loose $\ell$ tag	1	1	$p_{\mathrm{T}}^{\mathit{\gamma }1}>3m_{\mathit{\gamma }\mathit{\gamma }}/8$
			$\mathrm{e}$ or $\mathit{\mu }$, $p_{\mathrm{T}}>20\text{GeV}$
VBF dijet tag 0–2	2	3	$p_{\mathrm{T}}^{\mathit{\gamma }1}>m_{\mathit{\gamma }\mathit{\gamma }}/2$
			2 jets; classified using combined diphoton-dijet BDT
VH $E_{\mathrm{T}}^{\text{miss}}$  tag	1	1	$p_{\mathrm{T}}^{\mathit{\gamma }1}>3m_{\mathit{\gamma }\mathit{\gamma }}/8$
			$E_{\mathrm{T}}^{\text{miss}}>70\text{GeV}$
$\text{t}\overline{\text{t}}\text{H}$ multijet tag	${}^{\ast }$	1	$p_{\mathrm{T}}^{\mathit{\gamma }1}>m_{\mathit{\gamma }\mathit{\gamma }}/2$
			1 b-tagged jet + 4 more jets
VH dijet tag	1	1	$p_{\mathrm{T}}^{\mathit{\gamma }1}>m_{\mathit{\gamma }\mathit{\gamma }}/2$
			jet pair, $p_{\mathrm{T}}{}^{\mathrm{j}}>40\text{GeV}$ and $60<m_{\mathrm{jj}}<120\text{GeV}$
Untagged 0–4	4	5	The remaining events,
			classified using diphoton BDT

${}^{\ast }$ For the 7$\text{TeV}$dataset, events in the $\text{t}\overline{\text{t}}\text{H}$ lepton tag and multijet tag classes are selected first, and combined to form a single event class