• Europe/Zurich
  • English
  • Login
iCal export

LHC detector simulations: status, needs and prospects

chaired by Michelangelo Mangano (CERN), Pere Mato Vila (CERN)
from to (Europe/Zurich)
at CERN ( 4-3-006 - TH Theory Conference Room )
Description

After one full year of validation on collider data, and in preparation for the higher-precision and higher-statistics needs of the coming years, time is ripe for a topical workshop to assess the status of LHC detector simulations, bringing together the current experience of the users from the experiments' physics performance groups, and the developers of the major simulation codes

More details on the proposed format and plan are given in the attached document.
Material:
Workshop plan pdf file
Go to day
  • Thursday, 6 October 2011
    • 08:30 - 18:30 Physics issues 
      Goals:
a- Review what was learned from the comparison of collisions' data and simulations: what worked, what didn't work and got fixed (how), and what still needs to be improved
b- Identify benchmarks for the needed improvements, motivated by specific physics performance goals
      • 09:00 Introduction 10'
      • 09:10 ATLAS: Data and MC comparisons for inner detector tracking and vertexing 25'
        Speaker: Markus Juengst (Universitaet Bonn)
        Material: Slides pdf file
      • 09:35 CMS: Models and approximations used in full simulation 30'
        Speaker: Sunanda Banerjee (Saha Institute of Nuclear Physics (IN))
        Material: Slides pdf file
      • 10:05 ALICE: Geant4 validation 30'
        Speaker: Eva Sicking (Westfaelische Wilhelms-Universitaet Muenster (DE))
        Material: Slides pdf file
      • 10:35 Discussion 15'
      • 10:50 Coffee break 30'
      • 11:20 LHCb: Multiple scattering and EM physics 25'
        Speaker: Matthew Michael Reid (University of Warwick (GB))
        Material: Slides pdf file
      • 11:45 ATLAS: Data and MC comparisons for EM calorimeter, electrons and photons 25'
        Speaker: Olivier Arnaez (Johannes-Gutenberg-Universitaet Mainz (DE))
        Material: Transparents pdf file
      • 12:10 CMS: validation results for calorimeters 30'
        Speakers: Sunanda Banerjee (Saha Institute of Nuclear Physics (IN)), Sunanda Banerjee (Fermilab)
        Material: Slides pdf file
      • 12:40 Discussion 20'
      • 13:00 Lunch break 1h0'
      • 14:00 ATLAS: Data and MC comparisons for hadronic calorimeters, jets and ETmiss 25'
        Speakers: Zachary Louis Marshall (Conseil Europeen Recherche Nucl. (CERN)), Zachary Louis Marshall (CERN)
        Material: Slides pdf file
      • 14:25 LHCb: Hadronic interactions issues 20'
        Speaker: Nigel Watson (University of Birmingham (GB))
        Material: Slides powerpoint file pdf file
      • 14:45 ALICE: Transport of low momentum hadrons 30'
        Speaker: Marco Van Leeuwen (University of Utrecht (NL))
        Material: Slides powerpoint file pdf file
      • 15:15 Discussion 15'
      • 15:30 Coffee break 30'
      • 16:00 CMS: validation results for tracking detectors 30'
        Speakers: Mike Hildreth (University of Notre Dame (US)), Mike Hildreth (Department of Physics-College of Science-University of Notre Da)
        Material: Slides pdf file
      • 16:30 ATLAS: Data and MC comparisons for muon spectrometer, including cavern background 25'
        Speaker: Laura Jeanty (Harvard University (US))
        Material: Slides pdf file
      • 16:55 LHCb: Simulation of RICHes 25'
        Speaker: Sajan Easo (STFC - Science & Technology Facilities Council (GB))
        Material: Slides powerpoint file pdf file
      • 17:20 Discussion 25'
  • Friday, 7 October 2011
    • 08:00 - 14:00 Technical issues 
      Review requirements by the experiments for improvements on the technical side: CPU performance, architectural issues, fast simulations, handling of pileup, etc..
      • 09:00 LHCb: Geant4 in the LHCb simulation application 30'
        Speaker: Gloria Corti (CERN)
        Material: Slides pdf file
      • 09:30 ALICE: Geant4 integration 30'
        Speaker: Dr. Ivana Hrivnacova (Universite de Paris-Sud 11 (FR))
        Material: Slides pdf file
      • 10:00 ATLAS: Fast simulation, current status and plans 30'
        Speaker: Andreas Salzburger (CERN)
        Material: Slides pdf file
      • 10:30 CMS: Fast simulation 30'
        Speaker: Andrea Giammanco (Universite Catholique de Louvain (BE))
        Material: Slides pdf file
      • 11:00 Discussion 20'
      • 11:20 Coffee break 20'
      • 11:40 ATLAS: Overall simulation performance, including pile-up 30'
        Speaker: John Derek Chapman (University of Cambridge (GB))
        Material: Slides pdf file
      • 12:10 CMS: pileup issues 30'
        Speakers: Mike Hildreth (Department of Physics-College of Science-University of Notre Da), Mike Hildreth (University of Notre Dame (US))
        Material: Slides powerpoint file pdf file
      • 12:40 Discussion 20'
      • 13:00 Lunch break 1h0'
    • 14:00 - 16:50 Developers' outlook and feedback 
      Goal: review the plans for future developments, also in view of the needs presented by the experiments in Session 2
      • 14:00 Geant4 kernel: status & perspectives 30'
        Speaker: Makoto Asai (SLAC National Accelerator Laboratory)
        Material: Slides powerpoint file
      • 14:30 Geant4 physics: status & perspectives 45'
        Speaker: Dr. Alberto Ribon (CERN)
        Material: Slides pdf file
      • 15:15 Discussion 15'
      • 15:30 Coffee break 20'
      • 15:50 Detector Simulation R&D 30'
        Speaker: Dr. Rene Brun (CERN)
        Material: Slides powerpoint file pdf file
      • 16:20 Physics Validation 30'
        Speaker: Andrea Dotti (CERN)
        Material: Slides pdf file
    • 16:50 - 18:00 Final discussion 
      Discuss possible ways to monitor progress in this area, and to steer some immediate concrete work. Possible proposals:

- Define a reference version of Geant 4, emergent from the current validation studies with LHC data
- Identify benchmarks for improvements in the simulations, motivated by specific physics performance goals
- Formulate a recommendation to SFT and the experiments for a new mandate for the Geant 4 validation forum
- Propose a format for future meetings of this type: 
o hand over to the revamped validation forum? 
o decide to iterate the workshop on a yearly basis?
o setup focused WGs on separate issues (physics aspects, technical aspects, ....)
o ...
      • 16:50 Introduction 20'
        Speaker: Dr. Pere Mato Vila (CERN)
        Material: Slides powerpoint file