activity
20222026
most citedAutomating scattering amplitudes with chirality flow

4 citations · 16 across the 9 of their papers we have counts for

collaborators

10 papers

hep-ph2026

A multi-event interface for next-to-leading order calculations in MadGraph5_aMC@NLO

Rikkert Frederix, Stefan Roiser, Robert Schöfbeck +2

We detail the implementation of a multi-event interface for next-to-leading order (NLO) calculations in MadGraph5_aMC@NLO, allowing tree-level scattering amplitudes for multiple ph…

hep-ph2025★ 1 cited

Rapid event extraction and tensorial event adaption: Libraries for efficient access and generic reweighting of parton-level events and their implementation in the MadtRex module

Stefan Roiser, Robert Schöfbeck, Zenny Wettersten

We present Rex and teaRex, C++17 libraries for efficient management of parton-level hard scattering event information and completely generic reweighting of such events, respectivel…

hep-ph2025★ 1 cited

Data-parallel leading-order event generation in MadGraph5_aMC@NLO

Stephan Hageböck, Daniele Massaro, Olivier Mattelaer +3

The CUDACPP plugin for MadGraph5_aMC@NLO aims to accelerate leading order tree-level event generation by providing the MadEvent event generator with data-parallel helicity amplitud…

physics.comp-ph2025★ 4 cited

Madgraph on GPUs and vector CPUs: towards production (The 5-year journey to the first LO release CUDACPP v1.00.00)

Andrea Valassi, Taylor Childers, Stephan Hageböck +7

The effort to speed up the Madgraph5_aMC@NLO generator by exploiting CPU vectorization and GPUs, which started at the beginning of 2020, has delivered the first production release…

hep-ph2025★ 2 cited

Hardware acceleration for next-to-leading order event generation within MadGraph5_aMC@NLO

Zenny Wettersten, Olivier Mattelaer, Stefan Roiser +2

As the quality of experimental measurements increases, so does the need for Monte Carlo-generated simulated events - both with respect to the total amount and to their precision. I…

physics.comp-ph2023

Acceleration beyond lowest order event generation: An outlook on further parallelism within MadGraph5_aMC@NLO

Zenny Wettersten, Olivier Mattelaer, Stefan Roiser +2

An important area of high energy physics studies at the Large Hadron Collider (LHC) currently concerns the need for more extensive and precise comparison data. Important tools in t…

physics.comp-ph2023★ 4 cited

Madgraph5_aMC@NLO on GPUs and vector CPUs Experience with the first alpha release

Stephan Hageboeck, Taylor Childers, Walter Hopkins +7

Madgraph5_aMC@NLO is one of the most-frequently used Monte-Carlo event generators at the LHC, and an important consumer of compute resources. The software has been reengineered to…

hep-ph2023

Simplifying QCD event generation with chirality flow, reference vectors and spin directions

Emil Boman, Andrew Lifson, Malin Sjodahl +2

The chirality-flow formalism, combined with good choices of gauge reference vectors, simplifies tree-level calculations to the extent that it is often possible to write down amplit…

physics.comp-ph2023

Speeding up Madgraph5 aMC@NLO through CPU vectorization and GPU offloading: towards a first alpha release

Andrea Valassi, Taylor Childers, Laurence Field +9

The matrix element (ME) calculation in any Monte Carlo physics event generator is an ideal fit for implementing data parallelism with lockstep processing on GPUs and vector CPUs. F…

hep-ph2022★ 4 cited

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…