PT Journal
AU Aguilera-Verdugo, JD
   Driencourt-Mangin, F
   Hernandez-Pinto, RJ
   Plenter, J
   Prisco, RM
   Ramirez-Uribe, NS
   Renteria-Olivo, AE
   Rodrigo, G
   Sborlini, GFR
   Torres Bobadilla, WJ
   Tramontano, F
TI A Stroll through the Loop-Tree Duality
SO Symmetry-Basel
JI Symmetry-Basel
PY 2021
BP 1029
EP 37pp
VL 13
IS 6
DI 10.3390/sym13061029
LA English
DE Feynman integrals; multi-loop calculations; perturbative QFT; higher orders
AB 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.
ER