Table 2.

Generators, cross-section normalizations, PDF sets, and MC tunes used in this analysis

Sample	Generator	Use	Cross-section	PDF set	Tune
$\mathrm{Z}\to \mathit{\mu }\mathit{\mu }$	Alpgen $+$ Pythia	Signal	NNLO [26]	CTEQ6L1 [27]	PERUGIA2011C [18]
$Z\to ee$	Alpgen $+$ Pythia	Signal	NNLO [26]	CTEQ6L1	PERUGIA2011C
$Z\to \mathit{\tau }\mathit{\tau }$	Alpgen $+$ Herwig	Signal	NNLO [26]	CTEQ6L1	AUET2 [21]
$W\to \mathit{\mu }v$	Alpgen $+$ Pythia	Signal	NNLO [26]	CTEQ6L1	PERUGIA2011C
$W\to ev$	Alpgen $+$ Pythia	Signal	NNLO [26]	CTEQ6L1	PERUGIA2011C
$W\to \mathit{\tau }v$	Alpgen $+$ Pythia	Signal	NNLO [26]	CTEQ6L1	PERUGIA2011C
$t\overline{t}$	Powheg $+$ Pythia	Signal/background	NNLO+NNLL [28, 29]	CTEQ6L1	PERUGIA2011C
VBF $H\to \mathit{\tau }\mathit{\tau }$	Powheg $+$Pythia8	Signal	–	NLO CT10 [30]	AU2 [31]
SUSY 500	Herwig $++$	Signal	–	CTEQ6L1	UE EE3 [32]
$W^{\pm }Z\to {\ell }^{\pm }\mathit{\nu }{\ell }^{+}{\ell }^{-}$	Sherpa	Background	NLO [33, 34]	NLO CT10	Sherpa  default
$ZZ\to {\ell }^{+}{\ell }^{-}\mathit{\nu }\overline{\mathit{\nu }}$	Sherpa	Background	NLO [33, 34]	NLO CT10	Sherpa  default
$W^{+}{W}^{-}\to {\ell }^{+}\mathit{\nu }{\ell }^{-}\overline{\mathit{\nu }}$	Sherpa	Background	NLO [33, 34]	NLO CT10	Sherpa  default
tW	Powheg $+$ Pythia	Background	NNLO+NNLL [35]	CTEQ6L1	PERUGIA2011C
$\mathrm{Z}\to \mathit{\mu }\mathit{\mu }$	Powheg $+$Pythia8	Systematic effects	NNLO [36, 37]	NLO CT10	AU2
$\mathrm{Z}\to \mathit{\mu }\mathit{\mu }$	Alpgen $+$ Herwig	Systematic effects	NNLO [36, 37]	CTEQ6L1	AUET2
$\mathrm{Z}\to \mathit{\mu }\mathit{\mu }$	Sherpa	Systematic effects	NNLO [36, 37]	NLO CT10	Sherpa  default