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Measurement of the tt̅ production cross section in pp collisions at √s=7  TeV in dilepton final states containing a τ

(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
Uncontrolled Keywords: p(p)over-bar collisions; events
Subjects: NATURAL SCIENCES > Physics
NATURAL SCIENCES > Physics > Astronomy and Astrophysics
Divisions: Division of Experimental Physics
Projects:
Project titleProject leaderProject codeProject type
Eksperimentalna fizika na LHC energijama[93132] Krešo Kadija098-0982887-2878MZOS
Depositing User: Krešo Kadija
Date Deposited: 16 Sep 2013 14:49
Last Modified: 03 Feb 2016 15:03
URI: http://fulir.irb.hr/id/eprint/616
DOI: 10.1103/PhysRevD.85.112007

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