Causal representation of multi-loop Feynman integrands within the loop-tree duality

Causal representation of multi-loop Feynman integrands within the loop-tree duality

Abstract The numerical evaluation of multi-loop scattering amplitudes in the Feynman representation usually requires to deal with both physical (causal) and unphysical (non-causal) singularities. The loop-tree duality (LTD) offers a powerful framework to easily characterise and distinguish these two...

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Bibliographic Details
Main Authors: J. Jesús Aguilera-Verdugo, Roger J. Hernández-Pinto, Germán Rodrigo, German F. R. Sborlini, William J. Torres Bobadilla
Format: Article
Language:English
Published: SpringerOpen 2021-01-01
Series:Journal of High Energy Physics
Subjects:
Duality in Gauge Field Theories
Perturbative QCD
Scattering Amplitudes
Online Access:https://doi.org/10.1007/JHEP01(2021)069

Internet

https://doi.org/10.1007/JHEP01(2021)069

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