20 citations · 58 across the 12 of their papers we have counts for
14 papers
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…
Quantum computation of partonic Drell-Yan scattering cross sections and interference effects
Erik Bashore, Stefano Moretti, Timea Vitos
We probe the possibilities of efficiently constructing simple Feynman diagrams into quantum devices. More precisely, we study Drell-Yan lepton pair creation at the partonic level o…
Event generation with exponential scaling in multiplicity using AmpliCol
Rikkert Frederix, Timea Vitos
Efficient generation of LHC events is hindered by the rapidly rising cost of evaluating QCD matrix elements with increasing multiplicity. We build on a recently proposed two-step s…
FASTColor -- Full-color Amplitude Surrogate Toolkit for QCD
Javier Mariño Villadamigo, Rikkert Frederix, Tilman Plehn +2
High-multiplicity events remain a bottleneck for LHC simulations due to their computational cost. We present a ML-surrogate approach to accelerate matrix element reweighting from l…
A quantum algorithm for the n-gluon MHV scattering amplitude
Erik Bashore, Stefano Moretti, Timea Vitos
We propose a quantum algorithm for computing the n-gluon maximally helicity violating (MHV) tree-level scattering amplitude. We revisit a newly proposed method for unitarisation of…
Leading-colour-based unweighted event generation for multi-parton tree-level processes
Rikkert Frederix, Timea Vitos
In this work, we revisit unweighted event generation for multi-parton tree-level processes in massless QCD. We introduce a two-step approach, in which initially unweighted events a…
Improving NLO QCD event generators with high-energy EW corrections
Davide Pagani, Timea Vitos, Marco Zaro
In this work we present a new approach for the combination of electroweak (EW) corrections at high energies, the so-called EW Sudakov logarithms (EWSL), and next-to-leading-order Q…
W-boson angular coefficients at LHC at high precision
Timea Vitos
We present state-of-the-art high-precision theory predictions for the dominant angular coefficients parametrizing the spin-correlations in the production and decay of a W-boson pro…
Angular coefficients in W+j production at the LHC with high precision
Mathieu Pellen, Rene Poncelet, Andrei Popescu +1
The extraction of the W-boson mass, a fundamental parameter of the Standard Model, from hadron-hadron collision requires precise theory predictions. In this regard, angular coeffic…
The colour matrix at next-to-leading-colour accuracy for tree-level multi-parton processes
Rikkert Frederix, Timea Vitos
We investigate the next-to-leading-colour (NLC) contributions to the colour matrix in the fundamental and the colour-flow decompositions for tree-level processes with all gluons, o…
Probing the spin correlations of production at NLO QCD+EW
Rikkert Frederix, Ioannis Tsinikos, Timea Vitos
In this work we investigate the NLO QCD+EW corrections to the top quark pair production and their effects on the spin correlation coefficients and asymmetries at fixed-order top qu…
Electroweak corrections to the angular coefficients in finite- -boson production and dilepton decay
Rikkert Frederix, Timea Vitos
We present next-to-leading order (NLO) electroweak corrections to the dominant five angular coefficients parametrizing the Drell-Yan process in the -boson mass peak range for fi…
The electromagnetic form factors of the transition from the spin-3/2 Sigma to the Lambda hyperon
Olov Junker, Stefan Leupold, Elisabetta Perotti +1
The three electromagnetic form factors for the transition from a 3/2+ Sigma* hyperon to the ground-state Lambda hyperon are studied. At low energies, combinations of the transition…