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Measurement of the pp→tt production cross section and the top quark mass at s√=1.96  TeV in the all-hadronic decay mode

CollaborationWith : Campanelli, Mario / Clark, Allan Geoffrey / Hamilton, Andrew / Lefevre, Régis / Moed, Shulamit / Sfyrla, Anna / Shreyber, Irina / Vallecorsa, Sofia / Wu, Xin
Published in Physical Review. D. 2007, vol. 76, no. 07, p. 072009
Abstract We report the measurements of the tt production cross section and of the top quark mass using 1.02  fb−1 of pp data collected with the CDF II detector at the Fermilab Tevatron. We select events with six or more jets on which a number of kinematical requirements are imposed by means of a neural network algorithm. At least one of these jets must be identified as initiated by a b-quark candidate by the reconstruction of a secondary vertex. The cross section is measured to be σtt=8.3±1.0(stat)+2.0−1.5(syst)±0.5(lumi)  pb, which is consistent with the standard model prediction. The top quark mass of 174.0±2.2(stat)±4.8(syst)  GeV/c2 is derived from a likelihood fit incorporating reconstructed mass distributions representative of signal and background.
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CDF COLLABORATION. Measurement of the pp→tt production cross section and the top quark mass at s√=1.96  TeV in the all-hadronic decay mode. In: Physical Review. D, 2007, vol. 76, n° 07, p. 072009. https://archive-ouverte.unige.ch/unige:38439

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Deposited on : 2014-07-03

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