7.9k citations · 16.5k across the 79 of their papers we have counts for
82 papers · 1 filter
pyAmpliCol: fast tree-level matrix elements
Rikkert Frederix, Valentin Hirschi, Lucien Huber +3
Tree-level matrix elements sit at the heart of collider event generation, but their cost rises rapidly just where additional resolved radiation becomes most important. We present p…
Resonance-aware electroweak Sudakov reweighting for multijet-merged predictions
Lenart Jerala, Rikkert Frederix, Miha Muškinja +3
We present a resonance-aware extension of electroweak Sudakov-logarithm reweighting in MadGraph5_aMC@NLO for NLO QCD-matched and FxFx multijet-merged event samples. The method iden…
Exact color sums for multi-gluon amplitudes: direct, multiplet and symmetric-group Fourier methods
Rikkert Frederix, Valentin Hirschi, Malin Sjödahl
We compare three approaches for computing color-summed tree-level all-gluon squared matrix elements: evaluation using direct contraction in the trace and adjoint decompositions, or…
The inseparable three and four tops
Gauthier Durieux, Hesham El Faham, Rikkert Frederix +2
In measurements of four-top-quark production (), LHC collaborations observe a significant degeneracy with three-top-quark production. We compute the dominant three-top-produc…
MAcNLOPS for ZZ Pair Production at the LHC
Yuxiao Che, Rikkert Frederix
We present an implementation of the MAcNLOPS matching prescription for production in a MadGraph5_aMC@NLO + Pythia8 setup. Starting from a standard MC@NLO event sample,…
MC@NLO event generation by reweighting unweighted Born events
Saad El Farkh, Rikkert Frederix, Mohamed Gouighri
We propose a computational strategy for NLO+PS simulations in the MC@NLO framework that starts from Born-accurate (LO) events and reweights them to the full MC@NLO S-event weight,…