Compact Muon Solenoid
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| CMS-TOP-11-004 ; CERN-PH-EP-2012-374 | ||
| Measurement of the tˉt production cross section in the τ+jets channel in pp collisions at √s = 7 TeV | ||
| CMS Collaboration | ||
| 25 January 2013 | ||
| Eur. Phys. J. C 73 (2013) 2386 | ||
| Abstract: The top-quark pair production cross section in 7 TeV centre-of-mass proton proton collisions is measured using data collected by the CMS detector at the LHC. The measurement uses events with one jet identified as a hadronically-decaying tau lepton and at least four additional energetic jets, at least one of which is identified as coming from a b quark. The analysed data sample corresponds to an integrated luminosity of 3.9 inverse femtobarns recorded by a dedicated multijet plus hadronically-decaying tau trigger. A neural network has been developed to separate the top-quark pairs from the W+jets and multijet backgrounds. The measured value of sigma(ttbar) = 152 +/- 2 (stat.) +/- 32 (syst.) +/- 3 (lum.) pb is consistent with the standard model predictions. | ||
| Links: e-print arXiv:1301.5755 [hep-ex] (PDF) ; CDS record ; inSPIRE record ; Public twiki page ; HepData record ; CADI line (restricted) ; | ||
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