Speaker
Mr
Daniel Hulme
(UZH)
Description
Abstract: An algorithm for the systematic analytical approximation of multi-scale Feyn-
man integrals will be discussed. The algorithm produces algebraic expressions as functions of
the kinematical parameters and mass scales appearing in the Feynman integrals, allowing
for fast numerical evaluation. The results are valid in all kinematical regions, both above
and below thresholds, up to in principle arbitrary orders in the dimensional regulator. The
scope of the algorithm will be demonstrated by presenting results for selected two-loop three-
point and four-point integrals with an internal mass scale that appear in the two-loop
amplitudes for Higgs+jet production.
Primary author
Mr
Daniel Hulme
(UZH)
