Reducing full one-loop amplitudes to scalar integrals at the integrand level
Sep, 2006
Citations per year
Abstract: (Elsevier)
We show how to extract the coefficients of the 4-, 3-, 2- and 1-point one-loop scalar integrals from the full one-loop amplitude of arbitrary scattering processes. In a similar fashion, also the rational terms can be derived. Basically no information on the analytical structure of the amplitude is required, making our method appealing for an efficient numerical implementation.- Feynman graph
- scattering amplitude
- n-point function
References(39)
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