All-Purpose Numerical Evaluation of One-Loop Multi-Leg Feynman Diagrams

Details All-Purpose Numerical Evaluation of One-Loop Multi-Leg Feynman Diagrams All-Purpose Numerical Evaluation of One-Loop Multi-Leg Feynman Diagrams

2002-09-19

arxiv.org/abs/hep-ph/0209219v1

Nucl.Phys.B650:162-228,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

56 pages

Scientific paper

10.1016/S0550-3213(02)01070-2

A detailed investigation is presented of a set of algorithms which form the
basis for a fast and reliable numerical integration of one-loop multi-leg (up
to six) Feynman diagrams, with special attention to the behavior around
(possibly) singular points in phase space. No particular restriction is imposed
on kinematics, and complex masses (poles) are allowed.

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