PoS - Proceedings of Science
Volume 364 - European Physical Society Conference on High Energy Physics (EPS-HEP2019) - QCD and Hadronic Physics
Two-loop five-point amplitudes in QCD from Feynman diagrams
H.B. Hartanto
Full text: pdf
Pre-published on: June 18, 2020
Published on: November 12, 2020
We present an approach to compute two-loop amplitudes combining Feynman diagram input, numerical sampling over finite fields and functional reconstruction techniques. We apply the method to compute numerically W+4 parton scattering amplitudes and to derive analytical form of four-quark one-gluon amplitudes, both in the leading colour approximations.
DOI: https://doi.org/10.22323/1.364.0482
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