期刊
NUCLEAR PHYSICS B
卷 763, 期 1-2, 页码 147-169出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysb.2006.11.012
关键词
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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. (C) 2006 Elsevier B.V. All rights reserved.
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