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

研究成果: 雜誌貢獻期刊論文同行評審

50 引文 斯高帕斯(Scopus)

摘要

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.

原文???core.languages.en_GB???
文章編號1721
頁(從 - 到)1-27
頁數27
期刊European Physical Journal C
71
發行號9
DOIs
出版狀態已出版 - 1 7月 2011

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