LHC Monte Carlo WG plenary meeting

Name: LHC Monte Carlo WG plenary meeting
Start: 2026-10-05T00:00:00+02:00
End: 2026-10-06T19:00:00+02:00
Location: CERN

5 Oct 2026, 00:00 → 6 Oct 2026, 19:00 Europe/Zurich

4/3-006 - TH Conference Room (CERN)

4/3-006 - TH Conference Room

CERN

110

Show room on map

Description

This is the second plenary and in-person meeting of the LHC MC Working Group. It will cover an overview of the ongoing progress by the experiments and the theoretical community, and report on the ongoing initiatives stimulated by the WG. More details on the format, contents and agenda to follow in due time.

The meeting will take place at CERN and also via Zoom (hybrid format).

To subscribe to the general WG mailing list, used to distribute announcements about WG meetings and available documents, go to
https://e-groups.cern.ch/e-groups/EgroupsSubscription.do?egroupName=lhc-mcwg

Of potential interest to participants is the MCnet meeting on Wednesday the 7th with presentations of the work done by the students in the LPCC short-term studentship program: https://indico.cern.ch/event/1721951/

Support

lhc-mcwg-admin@cern.ch

Registration

LHC MC WG Registration

Participants

79 View full list

69002406714

Leif Lönnblad

Join via phone

Monday 5 October
- Mon 5 Oct
- Tue 6 Oct
- 09:00 → 10:00
  
  Arrival 1h 4/3-006 - TH Conference Room
  
  4/3-006 - TH Conference Room
  
  CERN
  
  110
  Show room on map
- 10:00 → 10:30
  
  Coffee break 30m 4/2-011 - TH common room
  
  4/2-011 - TH common room
  
  CERN
  
  15
  Show room on map
- 10:30 → 10:35
  
  Welcome 5m 4/3-006 - TH Conference Room
  
  4/3-006 - TH Conference Room
  
  CERN
  
  110
  Show room on map
  
  Speaker: Leif Lönnblad (Lund University (SE))
  
  LPCC-MCWG-26.pdf
- 10:35 → 12:30
  Updates from event generators and related tools 4/3-006 - TH Conference Room
  
  4/3-006 - TH Conference Room
  
  CERN
  
  110
  Show room on map
  
  Convener: Leif Lönnblad (Lund University (SE))
  - 10:35
    
    Sherpa 20m
    
    Speaker: Enrico Bothmann (CERN)
    
    LPCC-MCWG-26-Bothmann-SHERPA.pdf
  - 10:55
    
    Herwig 20m
    
    Speaker: James Whitehead
    
    MCWG_Herwig.pdf
  - 11:15
    
    MadGraph 20m
    
    Speaker: Daniele Massaro (CERN)
    
    Massaro_TALK_LHC_MC_WG_plenary_meeting.pdf
  - 11:35
    
    CEDAR tools 25m
    
    Speaker: Tomasz Procter (Jagiellonian University (PL))
    
    CEDAR_LHCMCWG_2026.pdf
  - 12:00
    
    Pythia 20m
    
    Speaker: Christian Bierlich (Lund University (SE))
    
    bierlich-cern2026.pdf
- 12:30 → 14:00
  
  Lunch break 1h 30m
- 14:00 → 15:30
  Updates from Experiments 4/3-006 - TH Conference Room
  
  4/3-006 - TH Conference Room
  
  CERN
  
  110
  Show room on map
  - 14:00
    
    ATLAS 20m
    
    Speaker: Spyros Argyropoulos (Aristotle University of Thessaloniki (GR))
    
    ATLAS overview - LHCMCWG 5 Oct 2026-2.pdf
  - 14:20
    
    ALICE 20m
    
    Speaker: Marco Giacalone (CERN)
    
    LPCC meeting plenary-3.pdf
  - 14:40
    
    CMS 20m
    
    Speaker: Efe Yazgan (National Taiwan University (TW))
    
    lpcc_mc_wg_Oct2026_eyazgan.pdf
  - 15:00
    
    LHCb (remote) 20m
    
    Speaker: Tom Hadavizadeh (Monash University (AU))
    
    2026_10_05_MCWG_LHCb_update.pdf
- 15:30 → 16:00
  
  Coffee break 30m 4/2-011 - TH common room
  
  4/2-011 - TH common room
  
  CERN
  
  15
  Show room on map
- 16:00 → 17:30
  Topical session on gluon splitting into (heavy) quarks 4/3-006 - TH Conference Room
  
  4/3-006 - TH Conference Room
  
  CERN
  
  110
  Show room on map
  
  Convener: Joey Huston (Michigan State University (US))
  - 16:00
    
    Introduction 10m
    
    Speaker: Joey Huston (Michigan State University (US))
    
    huston_LHCMWWG_oct_26.pdf
    
    huston_LHCMWWG_oct_26.pptx
  - 16:10
    
    Review from CMS (remote) 20m
    
    Speaker: Jennifer Roloff (Brown University (US))
    
    cms_gbb.pdf
  - 16:30
    
    Review from ATLAS 20m
    
    Speaker: Alberto Rescia (Università della Calabria & INFN (IT))
    
    Rescia_gluonSplittings_LHCMCWG.pdf
  - 16:50
    
    Review from Theory/Generators (remote) 20m
    
    Speaker: Christian Preuss (RWTH Aachen University)
    
    mcwg-heavy-quarks-ctp.pdf
  - 17:10
    
    Discussion 20m
    
    Speaker: Joey Huston (Michigan State University (US))
- 18:00 → 19:30
  
  Reception 1h 30m 4/2-011 - TH common room
  
  4/2-011 - TH common room
  
  CERN
  
  15
  Show room on map
Tuesday 6 October
- Mon 5 Oct
- Tue 6 Oct
- 09:00 → 10:30
  Repots from sub groups 4/3-006 - TH Conference Room
  
  4/3-006 - TH Conference Room
  
  CERN
  
  110
  Show room on map
  
  Convener: Leif Lönnblad (Lund University (SE))
  - 09:00
    
    HepMC 30m
    
    Speaker: Andrzej Konrad Siodmok (Jagiellonian University (PL))
    
    A_Siodmok_HepMC_status_and_next_steps.pdf
    
    A_Verbytskyi_hepmc3-1.pdf
  - 09:30
    
    Event sharing 30m
    
    Speaker: Enrico Bothmann (CERN)
    
    LPCC-MCWG-26-Bothmann-Data-Sharing.pdf
  - 10:00
    
    Tuning 30m
    
    Speakers: Aidin Masouminia (IPPP, Durham University), Lorenzo Bernardinis (Universita e INFN Trieste (IT))
    
    LB-Tuning_forum-Highlights.pdf
- 10:30 → 11:00
  
  Coffee break 30m 4/2-011 - TH common room
  
  4/2-011 - TH common room
  
  CERN
  
  15
  Show room on map
- 11:00 → 12:40
  Monte Carlo uncertainties 4/3-006 - TH Conference Room
  
  4/3-006 - TH Conference Room
  
  CERN
  
  110
  Show room on map
  
  Convener: Melissa Corona van Beekveld (Nikhef National institute for subatomic physics (NL))
  - 11:00
    
    Intoduction 5m
    
    Speaker: Melissa Corona van Beekveld (Nikhef National institute for subatomic physics (NL))
  - 11:05
    
    Input from the top WG 30m
    
    Speaker: Carlos Vico Villalba (Rice University (US))
    
    06-10-2026_InputFromTopWG_CV.pdf
  - 11:35
    
    Input from the Higgs WG 30m
    
    Speaker: Dermot Anthony Moran (CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tec. (ES))
    
    MCWG_HWG1.pdf
  - 12:05
    
    Discussion 30m
    
    Speaker: Melissa Corona van Beekveld (Nikhef National institute for subatomic physics (NL))
- 12:30 → 14:00
  
  Lunch break 1h 30m
- 14:00 → 15:48
  Code and hardware acceleration 4/3-006 - TH Conference Room
  
  4/3-006 - TH Conference Room
  
  CERN
  
  110
  Show room on map
  
  Convener: Enrico Bothmann (CERN)
  - 14:00
    
    TBA (MadSpace, MadMatrix, MadNIS, etc.) 18m
    
    Speaker: Theo Heimel (UCLouvain)
    
    ml_for_madgraph.pdf
  - 14:18
    
    SHERPA with PEPPER and ML Acceleration 18m
    
    Speaker: Enrico Bothmann (CERN)
    
    LPCC-MCWG-26-Bothmann-SHERPA-ML-PEPPER.pdf
  - 14:36
    
    Floating-Point Accuracy 18m
    
    Speaker: Frantisek Stloukal (Centre National de la Recherche Scientifique (FR))
    
    LHC_MC_WG_plenary-FS_numanal.pdf
  - 14:54
    
    Cell Resampling – the impact of a relative metric 18m
    
    Speaker: Jeppe Andersen (IPPP, University of Durham)
    
    Andersen_MCWG.pdf
  - 15:12
    
    Reduction of negative and pathological weights 18m
    
    Speaker: Rishabh Jain (Brown University (US))
    
    LHC_MC_WG_Meeting_2026_final.pdf
  - 15:30
    
    MadVfold: accelerating NLO event generation and reducing negative weights with SIMD vectorization and GPUs 18m
    
    Speaker: Andrea Valassi (CERN)
    
    20261006-MadVfold-LHCMCWG-AV-v005.pdf
    
    20261006-MadVfold-LHCMCWG-AV-v005.pptx
    
    arxiv preprint
- 15:48 → 16:20
  
  Coffee break 32m 4/2-011 - TH common room
  
  4/2-011 - TH common room
  
  CERN
  
  15
  Show room on map
- 16:20 → 17:30
  
  Discussions, short contributions, and wrap-up 4/3-006 - TH Conference Room
  
  4/3-006 - TH Conference Room
  
  CERN
  
  110
  Show room on map

LHC Monte Carlo WG plenary meeting

4/3-006 - TH Conference Room

CERN

4/3-006 - TH Conference Room

CERN

4/2-011 - TH common room

CERN

4/3-006 - TH Conference Room

CERN

4/3-006 - TH Conference Room

CERN

4/3-006 - TH Conference Room

CERN

4/2-011 - TH common room

CERN

4/3-006 - TH Conference Room

CERN

4/2-011 - TH common room

CERN

4/3-006 - TH Conference Room

CERN

4/2-011 - TH common room

CERN

4/3-006 - TH Conference Room

CERN

4/3-006 - TH Conference Room

CERN

4/2-011 - TH common room

CERN

4/3-006 - TH Conference Room

CERN