TY  - JOUR
AU  - Buchta, S.
AU  - Chachamis, G.
AU  - Draggiotis, P.
AU  - Malamos, I.
AU  - Rodrigo, G.
PY  - 2014
DA  - 2014//
TI  - On the singular behaviour of scattering amplitudes in quantum field theory
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 014
EP  - 13pp
VL  - 11
IS  - 11
PB  - Springer
KW  - QCD Phenomenology
KW  - NLO Computations
AB  - We analyse the singular behaviour of one-loop integrals and scattering amplitudes in the framework of the loop-tree duality approach. We show that there is a partial cancellation of singularities at the loop integrand level among the different components of the corresponding dual representation that can be interpreted in terms of causality. The remaining threshold and infrared singularities are restricted to a finite region of the loop momentum space, which is of the size of the external momenta and can be mapped to the phase-space of real corrections to cancel the soft and collinear divergences.
SN  - 1029-8479
UR  - http://arxiv.org/abs/1405.7850
UR  - https://doi.org/10.1007/JHEP11(2014)014
DO  - 10.1007/JHEP11(2014)014
LA  - English
N1  - WOS:000344788000003
ID  - Buchta_etal2014
ER  -