LHC Monte Carlo WG subgroup meeting – data sharing and new workflows

Thursday Oct 2, 2025, 1:00 PM → 5:00 PM Europe/Zurich

42/3-002 (CERN)

1:00 PM → 1:10 PM Introduction

Speaker: Enrico Bothmann (CERN)

data-sharing-welcome.pdf

1:10 PM → 1:50 PM Infrastructure

What is the status and prospects of generating, storing and staging (MC) data?

Convener: Enrico Bothmann (CERN)

1:10 PM WLCG

Status+future of compute, opportunistic HPC, HPC pledges, ...

Speaker: Simone Campana (CERN)

WLCG-generators-ws-2025.pdf

WLCG-generators-ws-2025.pptx

1:30 PM Rucio

Speakers: Luis Antonio Obis Aparicio (CERN), Martin Barisits (CERN)

Rucio sharing.pdf

1:50 PM → 2:30 PM Event generators

What are the available input and output formats?
 What workflows are/will be supported? Parton- & particle-level in stages/in one go? 
What are the bottlenecks, how are they best addressed? HPC support?

Convener: Enrico Bothmann (CERN)

1:50 PM General-purpose event generators

Speakers: Christian Gutschow (UCL (UK)), Enrico Bothmann (CERN)

data-sharing-generators.pdf

2:10 PM NNLO calculations (STRIPPER and HighTEA)

Speaker: Rene Poncelet (IFJ PAN Krakow)

2025.10.02-CERN-MCWG-poncelet.pdf

2:30 PM → 3:00 PM Discussion

3:00 PM → 3:30 PM Break

3:30 PM → 4:30 PM Experiments

What has/will be shared? What is the experience so far?
 What is the uptake of Open Data from the outside world?
 What are obstructions stopping us from sharing more?

Convener: Enrico Bothmann (CERN)

3:30 PM ALICE

Speakers: Antonin Maire (IPHC - Strasbourg (CNRS-In2p3/Unistra)), Marco Giacalone (CERN)

Conf-2025-10-02-LPCC-MCdataSharing.pdf

3:50 PM ATLAS

Speaker: Zach Marshall (Lawrence Berkeley National Lab. (US))

20251002 Open Event Generation.pdf

4:10 PM CMS

Speaker: Si Hyun Jeon (Boston University (US))

20251002_lhcmcwg.pdf

4:30 PM → 5:00 PM Discussion

Convener: Enrico Bothmann (CERN)