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Bonn 2010 – scientific programme

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T: Fachverband Teilchenphysik

T 10: QCD (Theorie) I

T 10.6: Talk

Monday, March 15, 2010, 18:00–18:15, HG XVI

Two-Loop Corrections to Top-Quark Pair Production — •Cedric Studerus — Institut für Theoretische Physik, Universität Zürich

The study of the top-quark properties is one of the crucial points of the LHC physics program. The expected experimental precision on the measurement of the top-quark pair production cross section requires the calculation of the next-to-next-to-leading order (NNLO) corrections to this process in QCD. The calculation of the two-loop corrections to the top-quark pair production is an unavoidable step in the evaluation of the NNLO corrections, and poses interesting technical challenges. In this talk I will discuss the salient features of the calculation of the two-loop Feynman diagrams, and I will present analytic results for several sets of graphs in the quark annihilation production channel.

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