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Measurement of the tt production cross section in pp collisions at s√=1.8TeV

CollaborationWith : Clark, Allan Geoffrey / Kambara, Hisanori / Speer, Thomas / Strumia Michelini, Federica / Wu, Xin
Published in Physical Review. D. 2001, vol. 64, no. 03
Abstract We update the measurement of the tt¯ production cross section using the CDF detector at the Fermilab Tevatron. This measurement uses tt¯ decays to the final states e+ν+jets and μ+ν+jets. We search for b quarks from t decays via secondary-vertex identification or the identification of semileptonic decays of the b and cascade c quarks. The background to the tt¯ production is determined primarily through a Monte Carlo simulation. However, we calibrate the simulation and evaluate its uncertainty using several independent data samples. For a top quark mass of 175GeV/c2, we measure σtt¯=5.1±1.5pb and σtt¯=9.2±4.3pb using the secondary vertex and the lepton tagging algorithms, respectively. Finally, we combine these results with those from other tt¯ decay channels and obtain σtt¯=6.5+1.7-1.4pb.
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CDF COLLABORATION. Measurement of the tt production cross section in pp collisions at s√=1.8TeV. In: Physical Review. D, 2001, vol. 64, n° 03. https://archive-ouverte.unige.ch/unige:37902

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Deposited on : 2014-06-17

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