Measurement of the tt̄ production cross section in pp collisions at √s=7 TeV using the kinematic properties of events with leptons and jets

The CMS collaboration

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51 Citations (Scopus)

Abstract

A measurement of the tt̄ production cross section in proton-proton collisions at a centre-of-mass energy of 7 TeV has been performed at the LHC with the CMS detector. The analysis uses a data sample corresponding to an integrated luminosity of 36 pb-1and is based on the reconstruction of the final state with one isolated, high transverse-momentum electron or muon and three or more hadronic jets. The kinematic properties of the events are used to separate the tt̄ signal from W+jets and QCD multijet background events. The measured cross section is 173+39 -32(stat. + syst.) pb, consistent with standard model expectations.

Original languageEnglish
Article number1721
Pages (from-to)1-27
Number of pages27
JournalEuropean Physical Journal C
Volume71
Issue number9
DOIs
Publication statusPublished - 1 Jul 2011
Externally publishedYes

Funding

FundersFunder number
Not addedST/H00081X/2
National Science Foundation0955765
Science and Technology Facilities CouncilST/F006748/1, ST/I000410/1, ST/I002200/1, ST/I505572/1, ST/I005912/1, ST/G502347/1, GRIDPP, ST/F007094/1
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung123501

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