Abazov, V. M. ; Mondal, N. K. ; et., al (2008) Simultaneous measurement of the ratio R=B(t→Wb)/B(t→Wq) and the top-quark pair production cross section with the D0 detector at √s=1.96 TeV Physical Review Letters, 100 (19). 192003_1-192003_7. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v100/i19/e192003
Related URL: http://dx.doi.org/10.1103/PhysRevLett.100.192003
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 σtt̅ in the lepton plus jets channel using 0.9 fb-1 of pp̅ collision data at √s=1.96 TeV collected with the D0 detector. We extract R and σtt̅ by analyzing samples of events with 0, 1, and ≥2 identified b jets. We measure R=0.97-0.08+0.09(stat+syst) and σtt̅ =8.18-0.84+0.90(stat+syst)±0.50(lumi) pb, in agreement with the standard model prediction.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 92401 |
| Deposited On: | 30 May 2012 09:22 |
| Last Modified: | 30 May 2012 09:22 |
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