32 citations · 79 across the 10 of their papers we have counts for
3 papers · 1 filter
Improving Colour Computations in MadGraph5_aMC@NLO and Exploring a 1/Nc Expansion
Andrew Lifson, Olivier Mattelaer
In this paper, we present an extension of MadGraph5_aMC@NLO which is able to evaluate tree-level QCD matrix-elements up to (one more particle than before). To achieve this…
The chirality-flow formalism for standard model calculations
Joakim Alnefjord, Andrew Lifson, Christian Reuschle +1
Scattering amplitudes are often split up into their color (su(N)) and kinematic components. Since the su(N) gauge part can be described using flows of color, one may anticipate tha…
Automating scattering amplitudes with chirality flow
Andrew Lifson, Malin Sjodahl, Zenny Wettersten
Recently we introduced the chirality-flow formalism, a method which builds on the spinor-helicity formalism and is inspired by the color-flow idea in QCD. With this formalism, Feyn…