CERN-THESIS-2012-153 26/07/2012 - CERN Document Server
CERN-THESIS-2012-153 26/07/2012 - CERN Document Server
CERN-THESIS-2012-153 26/07/2012 - CERN Document Server
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TL+ TL Invariant Mass<br />
Events / ( 1 )<br />
TL+ TL Invariant Mass<br />
0.05<br />
0.04<br />
0.03<br />
0.02<br />
Events / ( 1 )<br />
0.01<br />
0.05<br />
0.04<br />
0.03<br />
0.02<br />
ATLAS<br />
∫<br />
Internal<br />
1<br />
L dt = 0.7 fb<br />
e/gamma stream<br />
alpha = 0.6 ± 1.3<br />
alpha2 = 4.6 ± 4.8<br />
mean = 84.796189 ± 11.001715<br />
mean2 = 79.972112 ± 20.370352<br />
n = 14.7 ± 7.8<br />
n2 = 1.0 ± 2.5<br />
sigma = 4.5 ± 6.7<br />
sigma2 = 11.483791 ± 15.611445<br />
0<br />
50 60 70 80 90 100 110 120<br />
+ <br />
TL TL invariant mass [GeV]<br />
0.01<br />
ATLAS Internal<br />
Z→ee<br />
MC<br />
(a)<br />
alpha = 0.6 ± 1.2<br />
alpha2 = 4.7 ± 4.0<br />
mean = 84.871524 ± 10.497748<br />
mean2 = 79.461944 ± 19.809905<br />
n = 14.298642 ± 11.974132<br />
n2 = 1.0 ± 2.5<br />
sigma = 4.3 ± 6.5<br />
sigma2 = 11.062577 ± 15.373774<br />
0<br />
50 60 70 80 90 100 110 120<br />
+ <br />
TL TL invariant mass [GeV]<br />
(c)<br />
TL+ TL Invariant Mass<br />
Events / ( 1 )<br />
TL+ TL Invariant Mass<br />
0.1<br />
0.08<br />
0.06<br />
0.04<br />
0.02<br />
0.12<br />
Events / ( 1 )<br />
0.08<br />
0.06<br />
0.04<br />
0.02<br />
ATLAS<br />
∫<br />
Internal<br />
1<br />
L dt = 0.7 fb<br />
muon stream<br />
mean = 90.8 ± 4.4<br />
sigma = 4.544099 ± 11.181303<br />
width = 1.915010 ± 11.85<strong>26</strong>23<br />
0<br />
50 60 70 80 90 100 110 120<br />
+ <br />
TL TL invariant mass [GeV]<br />
0.1<br />
ATLAS Internal<br />
Z→µ<br />
µ MC<br />
(b)<br />
mean = 90.9 ± 3.8<br />
sigma = 3.933679 ± 11.185895<br />
width = 1.644606 ± 11.563382<br />
0<br />
50 60 70 80 90 100 110 120<br />
+ <br />
TL TL invariant mass [GeV]<br />
Figure 7.1: Opposite charge TLs invariant mass distributions for collisions data (top) and MC (bottom).<br />
All distributions are normalized to unity. The fit for each case is shown in blue.<br />
83<br />
(d)