Reducing full one-loop amplitudes to scalar integrals at the integrand level

DOI10.1016/J.NUCLPHYSB.2006.11.012zbMATH Open1116.81067arXivhep-ph/0609007OpenAlexW2086763826MaRDI QIDQ881293

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Publication date: 22 May 2007

Published in: (Search for Journal in Brave)

Abstract: 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

Full work available at URL: https://arxiv.org/abs/hep-ph/0609007

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