Dresden 2013 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 10: QCD / Elektroschwache Physik (Theorie) 1

T 10.1: Vortrag

Montag, 4. März 2013, 11:00–11:15, WIL-A120

Numerical evaluation of multi-loop integrals — •Sophia Borowka and Gudrun Heinrich — Max Planck Institute for Physik, Munich, Germany

In this talk the new features of the public program SecDec 2.1 for the numerical evaluation of multi-loop integrals with several mass scales are presented. The program is based on sector decomposition to extract dimensionally regulated singularities. To deal with integrable singularities due to mass thresholds, the integration contour is deformed into the complex plane. As applications, numerical results for massive non-planar two-loop diagrams entering heavy quark pair production at NNLO are shown.