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Paper detail

New results for loop integrals: AMBRE, CSectors, hexagon

We report on the three Mathematica packages hexagon, CSectors, AMBRE. They are useful for the evaluation of one- and two-loop Feynman integrals with a dependence on several kinematical scales. These integrals are typically needed for LHC and ILC applications, but also for higher order corrections at meson factories. hexagon is a new package for the tensor reduction of one-loop 5-point and 6-point functions with rank R=3 and R=4, respectively; AMBRE is a tool for derivations of Mellin-Barnes representations; CSectors is an interface for the package sector_decomposition and allows a convenient, direct evaluation of tensor Feynman integrals.

preprint2009arXivOpen access
Janusz GluzaKrzysztof KajdaTord RiemannValery Yundin
hep-ph
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Janusz GluzaKrzysztof KajdaTord RiemannValery Yundin

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