Table 1 Observed data and expected event yields in 139 fb−1 of data in the ℓℓℓℓjj and ℓℓννjj SRs. All the minor backgrounds are summed together as ‘Others’, and the WWjj and \(t\overline{t}\) processes are referred to as the non-resonant-ℓℓ backgrounds. Uncertainties in the predictions include both the statistical and systematic components on the predicted yields before fit
From: Observation of electroweak production of two jets and a Z-boson pair
Process | ℓℓℓℓjj | ℓℓννjj | ||
|---|---|---|---|---|
EW ZZjj | 31.4 ± 3.5 | 15.0 ± 0.8 | ||
QCD ZZjj | 77 ± 25 | 17.2 ± 3.5 | ||
QCD ggZZjj | 13.1 ± 4.4 | 3.5 ± 1.1 | ||
Non-resonant-ℓℓ | — | 21.4 ± 4.8 | ||
WZ | — | 24.6 ± 1.1 | ||
Others | 3.2 ± 2.1 | 1.2 ± 0.9 | ||
Total | 124 ± 26 | 82.9 ± 6.4 | ||
Data | 127 | 82 | ||
