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2 The CDF Experiment at Fermilab Contents - Harvard University ...

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60 Section 2: <strong>CDF</strong> Physics Analysis<br />

# Events<br />

2000<br />

1500<br />

1000<br />

500<br />

<strong>CDF</strong>(1B) Preliminary<br />

W→eν<br />

χ 2 /df = 82.6/70 (50 < M T<br />

< 120)<br />

χ 2 /df = 32.4/35 (65 < M T<br />

< 100)<br />

Mw = 80.473 +/- 0.065 (st<strong>at</strong>) GeV<br />

Backgrounds<br />

KS(prob) = 16%<br />

Fit region<br />

0<br />

50 60 70 80 90 100 110 120<br />

Transverse Mass (GeV)<br />

Figure 30: . <strong>The</strong> transverse mass of the W boson in the electron neutrino channel. <strong>The</strong><br />

histogram is a t to the region indic<strong>at</strong>ed.

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