On the Cuts of Scattering Amplitudes

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dc.creatorMastrolia, Pierpaolo
dc.date2008-07-22
dc.date.accessioned2026-07-07T11:45:00Z
dc.date.available2026-07-07T11:45:00Z
dc.descriptionThe 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.
dc.descriptionTo appear in the proceedings of 9th Workshop on Elementary Particle Theory: Loops and Legs in Quantum Field Theory, Sondershausen, Germany, 20-25 Apr 2008
dc.identifierhttps://arxiv.org/abs/0807.3493
dc.identifierhttp://arxiv.org/abs/0807.3493
dc.identifierNucl.Phys.Proc.Suppl.183:54-59,2008
dc.identifierdoi:10.1016/j.nuclphysbps.2008.09.082
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201748
dc.subjectHigh Energy Physics - Phenomenology
dc.titleOn the Cuts of Scattering Amplitudes
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