109 citations · 340 across the 10 of their papers we have counts for
10 papers
The loop-tree duality at work
Sebastian Buchta, Grigorios Chachamis, Ioannis Malamos +3
We review the recent developments of the loop-tree duality method, focussing our discussion on analysing the singular behaviour of the loop integrand of the dual representation of…
On the singular behaviour of scattering amplitudes in quantum field theory
Sebastian Buchta, Grigorios Chachamis, Petros Draggiotis +2
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…
Tree-Loop Duality Relation beyond simple poles
Isabella Bierenbaum, Sebastian Buchta, Petros Draggiotis +2
We develop the Tree-Loop Duality Relation for two- and three-loop integrals with multiple identical propagators (multiple poles). This is the extension of the Duality Relation for…
Counting to one: reducibility of one- and two-loop amplitudes at the integrand level
Ronald H. P. Kleiss, Ioannis Malamos, Costas G. Papadopoulos +1
Calculation of amplitudes in perturbative quantum field theory involve large loop integrals. The complexity of those integrals, in combination with the large number of Feynman diag…
R2SM: a package for the analytic computation of the R2 Rational terms in the Standard Model of the Electroweak interactions
M. V. Garzelli, I. Malamos
The analytical package written in FORM presented in this paper allows the computation of the complete set of Feynman Rules producing the Rational terms of kind R2 contributing to t…
Feynman rules for the rational part of the Electroweak 1-loop amplitudes in the R_xi gauge and in the Unitary gauge
M. V. Garzelli, I. Malamos, R. Pittau
We present the complete set of Feynman rules producing the rational terms of kind R_2 needed to perform any 1-loop calculation in the Electroweak Standard Model. Our formulae are g…