Using Feynman's Tree Theorem to Evaluate Loop Integrals Numerically

Details Using Feynman's Tree Theorem to Evaluate Loop Integrals Numerically Using Feynman's Tree Theorem to Evaluate Loop Integrals Numerically

2010-02-05

arxiv.org/abs/1002.1289v1

PoS(RADCOR2009)024

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 2 figures; Contribution to the 9th International Symposium on Radiative Corrections (RADCOR 2009), October 25-30 2009

Scientific paper

We report on a new method for the numerical evaluation of loop integrals,
based on the Feynman Tree Theorem. The loop integrals are replaced by
phase-space integration over fictitious extra on-shell particles. This
integration can be performed alongside with the Monte-Carlo integration of
ordinary phase-space, directly leading to NLO event generation.

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