Physics / Fizik

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Publisher: search.filters.publisher.Springer VerlagSubject: search.filters.subject.Cross section

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  • Article
    Citation - WoS: 44
    Citation - Scopus: 51
    Measurement of the Tt¯ Production Cross Section in Pp Collisions at ?s=7 Tev Using the Kinematic Properties of Events With Leptons and Jets
    (Springer Verlag, 2011) Karapınar, Güler; Demir, Durmuş Ali
    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. © 2011 CERN for the benefit of the CMS collaboration.