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. 2015 Jul 29;75(7):349. doi: 10.1140/epjc/s10052-015-3543-1

Table 7.

Dilepton channel: pre-fit event yields for signal, backgrounds and data in each of the analysis regions. The quoted uncertainties are the sum in quadrature of the statistical and systematic uncertainties on the yields

2 j, 2 b 3 j, 2 b 3 j, 3 b
tt¯H (125) 1.5 ± 0.2 5.3 ± 0.5 2.2 ± 0.3
tt¯+ light 14000 ± 1800 8100 ± 880 96 ± 21
tt¯+cc¯ 270 ± 170 600 ± 320 76 ± 44
tt¯+bb¯ 150 ± 87 260 ± 130 120 ± 65
Z+jets 330 ± 30 190 ± 49 8.2 ± 3.1
Single top 430 ± 71 270 ± 30 7.6 ± 3.5
Diboson 6.8 ± 2.2 4.2 ± 1.5 0.1±0.1
tt¯+V 8.4 ± 2.7 21 ± 6 1.9 ± 0.6
Lepton misID 21 ± 10 33 ± 17 0.8 ± 0.4
Total 15000 ± 1900 9500 ± 1000 310 ± 85
Data 15296 9996 374
S/B <0.001 0.001 0.006
S/B 0.012 0.053 0.114
4 j, 2 b 4 j, 3 b 4 j, 4 b
tt¯H (125) 15 ± 1 8.6 ± 0.6 2.7 ± 0.3
tt¯+ light 4400 ± 810 120 ± 31 1.9 ± 0.8
tt¯+cc¯ 710 ± 380 130 ± 74 5.0 ± 3.0
tt¯+bb¯ 290 ± 150 200 ± 100 31 ± 17
Z+jets 100 ± 39 10 ± 4 0.6 ± 0.2
Single top 140 ± 55 11 ± 5 0.8 ± 0.2
Diboson 4.0 ± 1.3 0.4 ± 0.1 0.1±0.1
tt¯+V 45 ± 14 7.8 ± 2.4 1.1 ± 0.4
Lepton misID 38 ± 19 4.3 ± 2.2 0.4 ± 0.2
Total 5800 ± 1000 490 ± 140 43 ± 18
Data 6006 561 46
S/B 0.003 0.015 0.059
S/B 0.197 0.365 0.401