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
Subject
Physics and Astronomy (miscellaneous),General Mathematics,Chemistry (miscellaneous),Computer Science (miscellaneous)
Cited by
16 articles.
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