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Karlsruhe 2011 – scientific programme

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T: Fachverband Teilchenphysik

T 10: QCD (Theorie) I

T 10.2: Talk

Wednesday, March 30, 2011, 17:00–17:15, 30.23: 10-1

Complete off-shell effects in top quark pair hadroproduction with leptonic decay at next-to-leading order — •Giuseppe Bevilacqua1, Michal Czakon1, Andreas van Hameren2, Costas Papadopoulos3, and Malgorzata Worek41Institut für Theoretische Teilchenphysik und Kosmologie, RWTH Aachen, Aachen, Germany — 2The Henryk Niewodniczanski Institute of Nuclear Physics, Cracow, Poland — 3Institute of Nuclear Physics, NCSR Demokritos, Athens, Greece — 4Bergische Universität Wuppertal, Wuppertal, Germany

We present results for NLO QCD corrections to the process pp (pp) → ttW+Wbbe+ νe µ νµb b + X, including the full set of double-, single- and non-resonant top contributions at the order OS3 αEW4). A comparative analysis at Tevatron run II and LHC will be discussed, presenting total cross sections together with scale dependence and several differential distributions. Comparison to the narrow-width approximation for top quarks will be also discussed.

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