CERN-THESIS-2012-153 26/07/2012 - CERN Document Server

Events / 10 GeV
track­leptons / 10 GeV
14
12
10
8
6
4
2
0
14
12
10
8
6
4
2
0
ATLAS Internal
­1
∫ L dt = 2.1 fb
2ID + TL
data
tt→
WbZq signal
fakes
ttW/Z
dibosons
bkg. uncertainty
40 80 120 160 200
(a)
ATLAS Internal
­1
∫ L dt = 2.1 fb
2ID + TL
miss
ET
[GeV]
30 40 50 60 70 80 90 100
(c)
data
tt→
WbZq signal
fakes
ttW/Z
dibosons
bkg. uncertainty
p
T
[GeV]
Events
track­leptons
14
12
10
8
6
4
2
0
10
8
6
4
2
ATLAS Internal
­1
∫ L dt = 2.1 fb
2ID + TL
data
tt→
WbZq signal
fakes
ttW/Z
dibosons
bkg. uncertainty
2 3 4 5
(b)
ATLAS Internal
­1
∫ L dt = 2.1 fb
2ID + TL
Number of jets
data
tt→
WbZq signal
fakes
ttW/Z
dibosons
bkg. uncertainty
0
0 0.4 0.8 1.2 1.6 2 2.4
(d)
| η|
[rad]
Figure 5.11: (a) E miss
T , (b) number of jets, and (c) pT and (d) η of the TL distributions for events after the
final selection. The dashed lines show the shapes of the signal distributions, normalized to the observed BR
limit, at 95% CL. The uncertainties on the background are both statistical and systematic.
68