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T: Fachverband Teilchenphysik

T 12: QCD (Theorie) III / Quantenfeldtheorie I

T 12.6: Talk

Wednesday, March 17, 2010, 15:15–15:30, HG XVI

Computation of Genuine Massive 2- and 3-loop 2-Point Functions with Operator Insertion — •Johannes Bluemlein¹, Alexander Hasselhuhn¹, and Sebastian Klein² — ¹DESY — ²RWTH Aachen

Results are presented on the calculation of massive 2- and 3-loop 2-point functions in QCD containing local composite operator insertions. We consider primitive divergent Feynman diagrams. The integrals are of importance for the massive operator matrix elements, which describe the heavy flavor Wilson coefficients of deep-inelastic scattering structure functions in the region Q² ≫ m² at general values of the Mellin variable N.