(CMS Collaboration) Chatrchyan, S.; Brigljević, Vuko; Đurić, Senka; Kadija, Krešo; Luetić, Jelena; Morović, Srećko (2012) Measurement of the tt̅ production cross section in pp collisions at √s=7 TeV in dilepton final states containing a τ. Physical Review D, 85 (11). 112007/1-112007/18. ISSN 1550-7998
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Abstract
The top quark pair production cross section is measured in dilepton events with one electron or muon, and one hadronically decaying τ lepton from the decay tt̅ →(ℓνℓ)(τhντ)bb̅ , (ℓ=e,μ). The data sample corresponds to an integrated luminosity of 2.0 fb-1 for the electron channel and 2.2 fb-1 for the muon channel, collected by the CMS detector at the LHC. This is the first measurement of the tt̅ cross section explicitly including τ leptons in proton-proton collisions at √s=7 TeV. The measured value σtt̅ =143±14(stat)±22(syst)±3(lumi) pb is consistent with the standard model predictions.
| Item Type: | Article | ||||||||
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| Uncontrolled Keywords: | p(p)over-bar collisions; events | ||||||||
| Subjects: | NATURAL SCIENCES > Physics NATURAL SCIENCES > Physics > Astronomy and Astrophysics |
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| Divisions: | Division of Experimental Physics | ||||||||
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| Depositing User: | Krešo Kadija | ||||||||
| Date Deposited: | 16 Sep 2013 14:49 | ||||||||
| URI: | http://fulir.irb.hr/id/eprint/616 | ||||||||
| DOI: | 10.1103/PhysRevD.85.112007 |
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