Workshop on Multi Parton Interaction

Europe/Berlin
Anna Kulesza (RWTH Aachen), Michaela Grimm (DESY), Zoltan Nagy (DESY)
Description
Multiple parton interactions are one of the most common, yet poorly understood, phenomena at the LHC. The results of the first LHC measurements differ substantially from predictions provided by Monte Carlo simulations. The modelling implemented in Monte Carlo generators aims to describe multiple scattering throughout the whole range of scales, from soft to hard. At the same time, much work is ongoing to improve theoretical understanding of multiple scatterings at both low and high pT, and study the related phenomenology at the LHC. Therefore it is extremely important to combine theoretical efforts in order to achieve a better description of multiple interactions, and, in general, the underlying event. Topics to be discussed will include: - Improving theoretical understanding of the multiple interaction (MPI) - Implementation in general purpose MC programs. - Current development on multi parton PDF and use of them in MC programs - Multi parton interaction contribution to signal and background processes - Recent experimental results for LHC (and Tevatron?) and plans for future measurements of MPI at the LHC - Continued development of better MC event generators UPLOADING slides: - Hit the 'Manage' button - the modification code is mpi10
Participants
  • Albert Knutsson
  • Alexander Flossdorf
  • Altan Cakir
  • ana quintero
  • Anna Kulesza
  • Boris Blok
  • Christian Roehr
  • Daniele Treleani
  • Davison Soper
  • Deepak Kar
  • Edmond BERGER
  • Ezio Maina
  • Frank Raupach
  • Gosta Gustafson
  • Hans-Werner Boschmann
  • Iryna Novikova
  • James Stirling
  • Jochen Bartels
  • Jonathan Gaunt
  • Judith Katzy
  • Korinna Zapp
  • Kyrylo Bondarenko
  • Livio Fano'
  • Markus Diehl
  • Michael Schmelling
  • Miroslav Myska
  • Paolo Bartalini
  • Richard Corke
  • Simon Platzer
  • Stanislav Suchek
  • Stefan Gieseke
  • Steve Chun Hay Kom
  • Tomas Kasemets
  • Torbjörn Sjöstrand
  • William Murray
  • Zoltan Nagy
    • 14:00 15:30
      Afternoon session I. Seminar Room 4

      Seminar Room 4

      • 14:00
        Measurement of the Underlying Event activity at 900 GeV and 7 TeV with CMS detector 45m
        Speaker: Livio Fano'
        Slides
        Talk
      • 14:45
        Multiparton interactions as seen by an ATLAS Higgs physicist 45m
        Speaker: Bill Murray
        Slides
        Talk
    • 15:30 16:00
      Coffee Break 30m
    • 16:00 17:30
      Afternoon session II. Seminar Room 4

      Seminar Room 4

      • 16:00
        Minimum Bias Physics at LHCb 45m Seminar Room 4

        Seminar Room 4

        Speaker: Michael Schmelling
        Slides
        Talk
      • 16:45
        ATLAS leading track UE analysis 45m Seminar Room 4

        Seminar Room 4

        Speaker: Deepak Kar
        Slides
        Talk
    • 09:00 10:30
      Morning session I. Seminar Room 4

      Seminar Room 4

      • 09:00
        MPI in Pythia 8 45m
        Speaker: Richard Corke
        Slides
        Talk
      • 09:45
        MPI model in Herwig++ 45m
        Speaker: Stefan Gieseke
        Slides
        Talk
    • 10:30 11:00
      Coffee break 30m
    • 11:00 12:30
      Morning session II. Seminar Room 4

      Seminar Room 4

      • 11:00
        Minimum Bias and the Underlying Event in Sherpa 45m
        Speaker: Korinna Zapp
        Slides
        Talk
      • 11:45
        Multiple interactions, diffraction and the BFKL pomeron 45m
        Speaker: Gösta Gustafson
        Slides
        Talk
    • 12:30 14:00
      Lunch break 1h 30m
    • 14:00 15:30
      Afternoon session I. Seminar Room 4

      Seminar Room 4

      • 14:00
        MPI: general features and consistency requirements 45m
        Speaker: Daniele Treleani
        Slides
        Talk
      • 14:45
        Double Parton Distributions incorporating pQCD Evolution and Sum Rule Constraints 45m
        Speaker: Jonathan Gaunt
        Slides
        Talk
    • 15:30 16:00
      Coffee break 30m
    • 16:00 18:00
      Afternoon session II. Sem. 4 & Hörsaal

      Sem. 4 & Hörsaal

      • 16:00
        Multiparton interactions: some theoretical considerations 45m Sem. 4 & Hörsaal

        Sem. 4 & Hörsaal

        Speaker: Markus Diehl
        Slides
        Talk
      • 16:45
        Break 15m Sem. 4 & Hörsaal

        Sem. 4 & Hörsaal

      • 17:00
        Parton Distribution Functions 1h Hörsaal

        Hörsaal

        Speaker: James Stirling
        Slides
        Talk
    • 19:30 22:00
      Workshop dinner 2h 30m
    • 09:00 11:15
      Morning session I. Seminar Room 4

      Seminar Room 4

      • 09:00
        Probing double parton scattering with same-sign W pairs at the LHC 45m
        Speaker: Steve Kom
        Slides
        Talk
      • 09:45
        MPI in Vector Boson plus jet(s) production at the LHC 45m
        Speaker: Ezio Maina
        Slides
        Talk
      • 10:30
        Dynamical Characteristics of Double Parton Scattering 45m
        Speaker: Ed Berger
        Slides
        Talk
    • 11:15 11:30
      Coffee break 15m
    • 11:30 13:00
      Morning session II. Seminar Room 4

      Seminar Room 4

      • 11:30
        4-jet correlations at Tevatron and LHC 45m
        Speaker: Boris Blok
        Slides
        Talk
      • 12:15
        Recombination within multi-chain contributions in pp scattering 45m
        Speaker: Jochen Bartels
        Talk
    • 13:00 14:00
      Lunch break 1h