Simultaneous measurement of the ratio B($t\to Wb$) /B($t\to Wq$) and the top quark pair production cross section with the D0 detector at $\sqrt{s}$ = 1.96-TeV
(2008) Physical Review Letters — Vol. 100 (2008)
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- Abstract
- We present the first simultaneous measurement of the ratio of branching fractions, R=B(t->Wb)/B(t->Wq), with q being a d, s, or b quark, and the top quark pair production cross section sigma_ttbar in the lepton plus jets channel using 0.9 fb-1 of ppbar collision data at sqrt(s)=1.96 TeV collected with the D0 detector. We extract R and sigma_ttbar by analyzing samples of events with 0, 1 and >= 2 identified b jets. We measure R = 0.97 +0.09-0.08 (stat+syst) and sigma_ttbar = 8.18 +0.90-0.84 (stat+syst)} +/-0.50 (lumi) pb, in agreement with the standard model prediction.
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Citations
Tanasijczuk, A. J., D0, & et al. (2008). Simultaneous measurement of the ratio B($t\to Wb$) /B($t\to Wq$) and the top quark pair production cross section with the D0 detector at $\sqrt{s}$ = 1.96-TeV. Physical Review Letters, 100. https://doi.org/10.1103/PhysRevLett.100.192003 (Original work published 2008)