MadGraph General Meeting 2026

9 Feb 2026, 13:45 → 11 Feb 2026, 17:50 Europe/Zurich

Institut für Theoretische Physik, PW12, room 106 (Heidelberg)

Olivier Mattelaer (UCLouvain), Tilman Plehn

Come to the Annual MadGraph Meeting!

Perfect opportunity to present your results or issues with the code and to discuss with the developers and community of MadGraph.

The event will be linked to a developer meeting (up to Friday) where no plenary sessions will be scheduled but where the various developers can meet/discuss and work in small groups: Link to the second event: https://indico.cern.ch/event/1594394/

Registrations for this event are handled in the main event registration form.

This event is supported by

IISN Convention MaxLHC: Convention 4.4503.16

 

Monday 9 February

1 Welcome

Speakers: Olivier Mattelaer (UCLouvain), Tilman Plehn

2 Things we suck at and what to do it about it

Speaker: Monica Dunford (Heidelberg University (DE))

3 Hardware acceleration

Speaker: Daniele Massaro (CERN)

Massaro_TALK_MadGraph_general_meeting_2026.pdf

4 Compiled reweighting executables with the MadtRex module

Speaker: Zenny Wettersten (CERN)

madtrex_is_pretty_cool_zenny_20260209.pdf

16:00 Coffee

5 MadSpace

Speaker: Theo Heimel (UCLouvain)

madspace.pdf

6 MadNIS@NLO

Speaker: Giovanni De Crescenzo (University of Heidelberg)

MG_meeting_De_Crescenzo.pdf

7 NLO negative weight reduction via ML

Speaker: Andrea Valassi (CERN)

20260209-NEGWGT-FVZ-AV-Heidelberg-v002.pdf

20260209-NEGWGT-FVZ-AV-Heidelberg-v002.pptx

8 Tools for High Energy Physics

Speaker: Lucien Huber (University of Bern)

tools_for_HEP_LHMD26.html

tools_for_HEP_LHMD26.pdf

Tuesday 10 February

9 Resonance aware EW corrections for high multiplicity NLO predictions

Speaker: Lenart Jerala (Jozef Stefan Institute (SI))

Resonance_aware_EW_corrections_for_high_multiplicity_NLO_predictions.pdf

10 Toward Precision Higgs and Jet Physics at the Muon Collider

Speaker: Dr Yang Ma (UCLouvain)

MadGraph26_YM.pdf

11 mg5qs: a lightweight MadGraph environment for initial inquiry

Speaker: Leo Megliola (UC San Diego)

slides.pdf

10:30 Coffee

12 (HELAS) MadGraph/MadEvent : reborn

Speaker: Prof. Kentarou Mawatari (Iwate U.)

2602madgraph_mawatari 2.pdf

13 Amplitude Surrogates for Multi-Jet Processes

Speaker: Luca Beccatini

MG_2026_NNAmp_Pres.pdf

14 Reliable uncertainty estimation for amplitude surrogates

Speaker: Nina Elmer (University of Cambridge)

MadgraphMeeting_Elmer.pdf

12:30 Lunch

15 Why molecules matter -- and how ML can help

Speaker: Fred Hamprecht

16 News from Pythia

Speaker: Christian Preuss (University of Goettingen)

pythia-news.pdf

17 Studying dark matter with MadDM, status and updates

Speaker: Gian Marco Lucchetti (INFN, UNIBO)

MadDM_Heidelberg_2026.pdf

16:00 Coffee

18 Efficient high-multiplicity process generation with colour expansion

Speaker: Timea Vitos

MG_meeting_2026_Vitos.pdf

19 FASTColor -- Full-color Amplitude Surrogate Toolkit for QCD

Speaker: Javier Mariño Villadamigo (Institut für Theoretische Physik - University of Heidelberg)

MarinoJavier_MadGraphMeeting_compressed.pdf

MarinoJavier_MadGraphMeeting.pdf

20 On the factorial complexity of scattering amplitudes

Speaker: Rikkert Frederix (Lund University)

frederix.pdf

19:30 Social dinner

Wednesday 11 February

21 MadAgents

Speaker: Daniel Schiller (Institute for Theoretical Physics Heidelberg)

MadAgents_Presentation.pdf

MadAgents_Presentation.pptx

22 Lorentz-equivariant Transformers for the LHC

Speaker: Jonas Spinner

23 A universal vision transformer for fast calorimeter simulation

Speaker: Luigi Favaro (Universite Catholique de Louvain (UCL) (BE))

universal_vit.pdf

10:30 Coffee

24 Fully-differential color-singlet production at NNLO

Speaker: Lukas Simon (LPTHE - CNRS et Sorbonne Université)

MG5meeting_LukasSIMON.pdf

25 Status update on the implementation of the LO NRQCD/NRQED module in MadGraph5

Speaker: Luca MAXIA (LPTHE - CNRS)

MadSons_LMaxia.pdf

26 Photoproduction and Asymmetric Collisions in MG5aMC@NLO

Speaker: Allen Cris John Rubesh Rajan (University College Dublin)

allens_cooler_slides.pdf

allens_cool_slides.pdf

allens_even_cooler_slides.pdf

12:30 Lunch

27 MadAnalysis

Speaker: Jack Y. Araz (City St George's, University of London)

MadAnalysis 5 - Design & reinterpret LHC analyses

28 Automated computation of spin-density matrices and quantum observables

Speaker: Valentin Durupt

Presentation_Valentin_Durupt_MGMeeting.pdf

29 Udpate on MadSpin via density matrix computation

Speaker: Spyros Argyropoulos (Aristotle University of Thessaloniki (GR))

30 Numerical analysis of matrix element calculation with CADNA and PROMISE

Speaker: Frantisek Stloukal (Centre National de la Recherche Scientifique (FR))

MG5_Heidelberg_NumAnal_FS_fin.pdf

16:00 Coffee

31 MG5aMC@NLO checkpointing

Speaker: Jakob Novak (Jozef Stefan Institute (SI))

checkpointing_heidelberg_v2.pdf

32 Quantum corrections in two-photon processes

Speaker: Huasheng Shao (Centre National de la Recherche Scientifique (FR))

Shao_MadGraph2026.pdf

33 Updated Predictions for Polarized Matrix Elements in MG5aMC@NLO

Speaker: Richard Ruiz (Institute of Nuclear Physics (IFJ) PAN)

rruiz_MadGraph2026_PolUpdates.pdf