Projects per year
In this paper, we present an extension of MadGraph5_aMC@NLO which is able to evaluate tree-level QCD matrix-elements up to 2 → 6 (one more particle than before). To achieve this, we implemented Berends–Giele-like recursion, and re-implemented the way colour is computed such that we can now expand the colour matrix in powers of 1 / Nc and truncate this expansion to a chosen order. For high multiplicity samples, even without truncating the colour matrix, the new implementation offers a speed gain compared to the previous MadGraph5_aMC@NLO code.
|Journal||European Physical Journal C|
|Publication status||Published - 2022 Dec|
Subject classification (UKÄ)
- Subatomic Physics
FingerprintDive into the research topics of 'Improving colour computations in MadGraph5_aMC@NLO and exploring a 1 / Nc expansion'. Together they form a unique fingerprint.
- 1 Active
The Chirality-Flow Formalism and Optimising Scattering Amplitudes
Lifson, A., Prestel, S., Frederix, R., Reuschle, C., Mattelaer, O. & Plaetzer, S.
2018/10/15 → 2023/04/26