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Author Mastrolia, Pierpaolo
Source arXiv.org
Content type Text
File Format PDF
Date of Submission 2008-07-22
Language English ♦ German
Subject Domain (in DDC) Computer science, information & general works ♦ Natural sciences & mathematics ♦ Physics
Subject Keyword High Energy Physics - Phenomenology ♦ physics:hep-ph
Abstract The use of complex analysis for computing one-loop scattering amplitudes is naturally induced by generalised unitarity-cut conditions, fulfilled by complex values of the loop variable. We report on two techniques: the cut-integration with spinor-variables as contour integrals of rational functions; and the use of the Discrete Fourier Transform to optimize the reduction of tensor-integrals to master scalar integrals.
Description Reference: Nucl.Phys.Proc.Suppl.183:54-59,2008
Educational Use Research
Learning Resource Type Article


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