A Fully Numerical Approach to One-Loop Amplitudes
arXiv:0802.4171
Abstract
We suggest a new approach for the automatic and fully numerical evaluation of one-loop scattering amplitudes in perturbative quantum field theory. We use suitably formulated dispersion relations to perform the calculation as a convolution of tree-level amplitudes. This allows to take advantage of the iterative numerical algorithms for the evaluation of leading order matrix elements.
31 pages, revised and enlarged manuscript, axodraw.sty needed
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Cited by in corpus (7)
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- Numerical Evaluation of Tensor Feynman Integrals in Euclidean Kinematics
- Towards pp -> VVjj at NLO QCD: Bosonic contributions to triple vector boson production plus jet
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