@Article{Aguilera-Verdugo_etal2019,
author="Aguilera-Verdugo, J. J.
and Driencourt-Mangin, F.
and Plenter, J.
and Ramirez-Uribe, S.
and Rodrigo, G.
and Sborlini, G. F. R.
and Torres Bobadilla, W. J.
and Tracz, S.",
title="Causality, unitarity thresholds, anomalous thresholds and infrared singularities from the loop-tree duality at higher orders",
journal="Journal of High Energy Physics",
year="2019",
publisher="Springer",
volume="12",
number="12",
pages="163 - 12pp",
optkeywords="Duality in Gauge Field Theories; Perturbative QCD; Scattering Amplitudes",
abstract="We present the first comprehensive analysis of the unitarity thresholds and anomalous thresholds of scattering amplitudes at two loops and beyond based on the loop- tree duality, and show how non-causal unphysical thresholds are locally cancelled in an efficient way when the forest of all the dual on-shell cuts is considered as one. We also prove that soft and collinear singularities at two loops and beyond are restricted to a compact region of the loop three-momenta, which is a necessary condition for implementing a local cancellation of loop infrared singularities with the ones appearing in real emission; without relying on a subtraction formalism.",
optnote="WOS:000513535500003",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=4288), last updated on Tue, 03 Mar 2020 14:59:40 +0000",
issn="1029-8479",
doi="10.1007/JHEP12(2019)163",
opturl="https://arxiv.org/abs/1904.08389",
opturl="https://doi.org/10.1007/JHEP12(2019)163",
language="English"
}