A Calculational Formalism for One-Loop Integrals

Details A Calculational Formalism for One-Loop Integrals A Calculational Formalism for One-Loop Integrals

2004-02-14

arxiv.org/abs/hep-ph/0402152v3

JHEP0404:029,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, 16 embedded postscript figures, LaTeX, JHEP class, references added, typo in eq 2.27 fixed

Scientific paper

10.1088/1126-6708/2004/04/029

We construct a specific formalism for calculating the one-loop virtual corrections for standard model processes with an arbitrary number of external legs. The procedure explicitly separates the infrared and ultraviolet divergences analytically from the finite one-loop contributions, which can then be evaluated numerically using recursion relations. Using the formalism outlined in this paper, we are in position to construct the next-to-leading order corrections to a variety of multi-leg QCD processes such as multi-jet production and vector-boson(s) plus multi-jet production at hadron colliders. The final limiting factor on the number of particles will be the available computer power.

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