206 citations · 416 across the 5 of their papers we have counts for
5 papers
On the Cuts of Scattering Amplitudes
Pierpaolo Mastrolia
The use of complex analysis for computing one-loop scattering amplitudes is naturally induced by generalised unitarity-cut conditions, fulfilled by complex values of the loop varia…
Optimizing the Reduction of One-Loop Amplitudes
P. Mastrolia, G. Ossola, C. G. Papadopoulos +1
We present an optimization of the reduction algorithm of one-loop amplitudes in terms of master integrals. It is based on the exploitation of the polynomial structure of the integr…
Closed-Form Decomposition of One-Loop Massive Amplitudes
Ruth Britto, Bo Feng, Pierpaolo Mastrolia
We present formulas for the coefficients of 2-, 3-, 4- and 5-point master integrals for one-loop massive amplitudes. The coefficients are derived from unitarity cuts in D dimension…
The NLO multileg working group: summary report
Z. Bern, S. Dittmaier, L. Dixon +44
This report summarizes the activities of the NLM working group of the Workshop "Physics at TeV Colliders", Les Houches, France, 11-29 June, 2007.
Feynman Diagrams and Differential Equations
Mario Argeri, Pierpaolo Mastrolia
We review in a pedagogical way the method of differential equations for the evaluation of D-dimensionally regulated Feynman integrals. After dealing with the general features of th…