197 citations
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hep-ph2008★ 75 cited
Closed-Form Decomposition of One-Loop Massive Amplitudes
Ruth Britto, Bo Feng, Pierpaolo Mastrolia
We present formulas for the coefficients of 2-, 3-, 4- and 5-point master integrals for one-loop massive amplitudes. The coefficients are derived from unitarity cuts in D dimension…
hep-ph2007★ 76 cited
Integral Coefficients for One-Loop Amplitudes
Ruth Britto, Bo Feng
We present a set of algebraic functions for evaluating the coefficients of the scalar integral basis of a general one-loop amplitude. The functions are derived from unitarity cuts,…