Minimum Bias and Underlying Event Working Group

TH Theory Conference Room (CERN)

TH Theory Conference Room


Michelangelo Mangano (CERN)

 To subscribe to the WG mailing list, go to

For information relative to

  • housing
  • access to CERN for those not holding a CERN card
  • laptop registration

please check

    • 9:00 AM 1:30 PM
      Cross sections, diffraction and forward physics

      The goal of the session is to review recent results from all experiments, and discuss the following points:
      o comparison/correlation/complementarity between the inelastic cross section measured by ALICE/ATLAS/CMS and the forthcoming measurements from TOTEM (e.g. impact of diffractive studies on allowing central experiments to reduce the model dependence in the extrapolation of the inelastic rate)
      o interplay of diffractive measurements performed by central experiments, and potential of TOTEM
      o interplay of very forward neutral energy flow studies by LHCf and central data, and constraints on MC codes for cosmic ray propagation in the atmosphere

      • 9:00 AM
        Inelastic cross section measurement in ALICE 20m
        Speaker: Martino Gagliardi (Universita degli Studi di Torino-Universita e INFN)
      • 9:20 AM
        Measurement of visible (and extrapolation to total) pp cross section in CMS 20m
        Speaker: Mr Nicolo Cartiglia (INFN)
      • 10:00 AM
        Diffraction and forward rapidity gap measurement in MB events in ATLAS 20m
        Speaker: Mr Tim Martin (University of Birmingham)
      • 10:20 AM
        Coffee break 20m
      • 10:40 AM
        Diffraction dissociation in pp with ALICE 20m
        Speaker: Martin Poghosyan (Universita degli Studi di Torino-Universita e INFN)
      • 11:00 AM
        New forward physics results from CMS 30m
        Speaker: Juerg Eugster (ETHZ)
      • 11:30 AM
        Latest results from LHCf 10m
        Speaker: Hiroaki Menjo (Universita e INFN)
      • 11:40 AM
        Cosmic-rays MCs vs LHC data 20m
        Speaker: David D'Enterria (CERN)
      • 12:30 PM
        Lunch break 1h
    • 1:30 PM 4:10 PM
      New recent MB/UE results
      • 1:30 PM
        Update on strange particle production in ALICE 20m
        Speaker: Michal Broz (Faculty of Mathematics and Physics (FMFI)-Comenius University)
      • 1:50 PM
        antiLambda/Lambda and antiLambda/Ks ratios at LHCb 20m
        Speaker: Raluca Muresan (Horia Hulubei National Institute of Physics and Nuclear Enginee)
      • 2:10 PM
        Particle-level-corrected UE data from CMS 20m
        Speaker: Dr Sunil Bansal (Universiteit Antwerpen Physics Department)
      • 2:30 PM
        Status of common plots, and more comparisons of distributions form different experiments 20m
        Speaker: Richard D. Field
      • 2:50 PM
        Two-particle correlations in MB events in ATLAS 20m
        Speaker: Cristina Oropeza Barrera (Department of Physics and Astronomy-University of Glasgow)
      • 3:10 PM
        Status of "the ridge" in CMS 20m
        Speaker: Dragos Velicanu (Department of Physics-Laboratory for Nuclear Science (LNS)-Mass)
      • 3:30 PM
        Global properties of high-multiplicity events in ALICE 20m
        Speaker: Antonio Ortiz Velasquez (Instituto de Ciencias Nucleares-Universidad Nacional Autonoma ()
      • 3:50 PM
        Coffee break 20m
    • 4:10 PM 5:50 PM
      Tuning and tunes
      • 4:10 PM
        Update on PYTHIA tunes 30m
        Speaker: Richard D. Field
      • 4:40 PM
        Perugia 2011 tunes, UE/strangeness updates 10m
        Speaker: Peter Skands (CERN)
      • 5:10 PM
        Status of tuning studies in ATLAS 30m
        Speakers: Judith Katzy (Deutsches Elektronen-Synchrotron (DESY)), Dr Judith Katzy (DESY, HAMBURG)
      • 5:40 PM
        Some ideas on data presentation/publication 10m
        Speaker: Hannes Jung (Deutsches Elektronen-Synchrotron (DESY))
    • 5:50 PM 6:50 PM
      Discussion on future directions for MB&UE WG studies
      • 5:50 PM
        Some perspective and proposals 15m
        Speaker: Michelangelo Mangano (CERN)
      • 6:05 PM
        Discussion 25m