Measurement of the Z boson cross-section in - Harvard University ...

Chapter 6: Event Selection 172
Entries / 0.23
5
10
4
10
3
10
2
10
10
1
-1
∫L
dt = 331 nb
Data 2010 (
Z → µ µ
bb cc
W → µ ν
Z → τ
tt
s=7
TeV)
-2 -1.5 -1 -0.5 0 0.5 1 1.5 2
η
Entries / 5 GeV
10
10
10
4
10
3
10
2
1
-1
-1
∫L
dt = 331 nb
Entries / 0.31
5
10
4
10
3
10
10
2
10
1
-1
∫L
dt = 331 nb
20 30 40 50 60 70 80 90 100 110120
p [GeV]
Data 2010 (
Z → µ µ
bb cc
W → µ ν
Z → τ
tt
s=7
TeV)
-3 -2 -1 0 1 2 3
ATLAS Preliminary
Data 2010 ( s=7
TeV)
Z → µ µ
bb cc
W → µ ν
Z → τ
tt
Figure 6.7: Muon η, φ, pT distributions for signal Monte Carlo, background Monte
Carlo and data after the event preselection. The total Monte Carlo event numbers
have been normalized to the number of events in data.
T
φ