DIFFRACTION 2012, Lanzarote, Canary Islands, Spain
DIFFRACTION 2012, Lanzarote, Canary Islands, Spain
DIFFRACTION 2012, Lanzarote, Canary Islands, Spain
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t >1 GeV 2 : asymmetric t-distributions as<br />
a tool for evaluating bgd at high t<br />
schematic view of fiber tracker<br />
25 mm<br />
t-distributions<br />
7.5 mm<br />
12.5 mm<br />
x<br />
2.5 mm<br />
Y<br />
p p<br />
• •<br />
2 mm<br />
Y = 7.5 mm<br />
bgnd =<br />
20 evts/GeV 2<br />
‣ tracker’s upper edge: |t|=2.3 GeV 2 , estimated from t~q 2<br />
‣ the lower edge is at |t|= 6.5 GeV 2 (not shown)<br />
‣ background level: region of Y track >Y o data for |t|>2.3 GeV 2<br />
Diffraction <strong>2012</strong> <strong>Lanzarote</strong> Diffractive Dijet Production at CDF K. Goulianos<br />
17
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