A Stroll through the Loop-Tree Duality

Author:

Aguilera-Verdugo José de JesúsORCID,Driencourt-Mangin Félix,Hernández-Pinto Roger JoséORCID,Plenter JudithORCID,Prisco Renato Maria,Ramírez-Uribe Norma SelomitORCID,Rentería-Olivo Andrés ErnestoORCID,Rodrigo GermánORCID,Sborlini GermanORCID,Torres Bobadilla William JavierORCID,Tramontano FrancescoORCID

Abstract

The Loop-Tree Duality (LTD) theorem is an innovative technique to deal with multi-loop scattering amplitudes, leading to integrand-level representations over a Euclidean space. In this article, we review the last developments concerning this framework, focusing on the manifestly causal representation of multi-loop Feynman integrals and scattering amplitudes, and the definition of dual local counter-terms to cancel infrared singularities.

Funder

European Cooperation in Science and Technology

European Regional Development Fund

Generalitat Valenciana

Fundación Bancaria Caixa d'Estalvis i Pensions de Barcelona

H2020 Marie Skłodowska-Curie Actions

Spanish National Plan for Scientific and Technical Research and Innovation

Consejo Nacional de Ciencia y Tecnología

Publisher

MDPI AG

Subject

Physics and Astronomy (miscellaneous),General Mathematics,Chemistry (miscellaneous),Computer Science (miscellaneous)

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