Workshop on Multi Parton Interaction

chaired by Anna Kulesza (RWTH Aachen), Zoltan Nagy (DESY), Michaela Grimm (DESY)
from to (Europe/Berlin)
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

Go to day
  • Monday, September 13, 2010
    • 14:00 - 15:30 Afternoon session I.
      Location: Seminar Room 4
      • 14:00 Measurement of the Underlying Event activity at 900 GeV and 7 TeV with CMS detector 45'
        Speaker: Livio Fano'
        Material: Slides pdf file Talk link
      • 14:45 Multiparton interactions as seen by an ATLAS Higgs physicist 45'
        Speaker: Bill Murray
        Material: Slides pdf file Talk link
    • 15:30 - 16:00 Coffee Break
    • 16:00 - 17:30 Afternoon session II.
      Location: Seminar Room 4
      • 16:00 Minimum Bias Physics at LHCb 45'
        Speaker: Michael Schmelling
        Material: Slides pdf file Talk link
      • 16:45 ATLAS leading track UE analysis 45'
        Speaker: Deepak Kar
        Material: Slides pdf file Talk link
  • Tuesday, September 14, 2010
    • 09:00 - 10:30 Morning session I.
      Location: Seminar Room 4
    • 10:30 - 11:00 Coffee break
    • 11:00 - 12:30 Morning session II.
      Location: Seminar Room 4
      • 11:00 Minimum Bias and the Underlying Event in Sherpa 45'
        Speaker: Korinna Zapp
        Material: Slides pdf file Talk link
      • 11:45 Multiple interactions, diffraction and the BFKL pomeron 45'
        Speaker: Gösta Gustafson
        Material: Slides pdf file Talk link
    • 12:30 - 14:00 Lunch break
    • 14:00 - 15:30 Afternoon session I.
      Location: Seminar Room 4
      • 14:00 MPI: general features and consistency requirements 45'
        Speaker: Daniele Treleani
        Material: Slides pdf file Talk link
      • 14:45 Double Parton Distributions incorporating pQCD Evolution and Sum Rule Constraints 45'
        Speaker: Jonathan Gaunt
        Material: Slides pdf file Talk link
    • 15:30 - 16:00 Coffee break
    • 16:00 - 18:00 Afternoon session II.
      Location: Sem. 4 & Hörsaal
      • 16:00 Multiparton interactions: some theoretical considerations 45'
        Speaker: Markus Diehl
        Material: Slides pdf file Talk link
      • 16:45 Break 15'
      • 17:00 Parton Distribution Functions 1h0' ( Hörsaal )
        Speaker: James Stirling
        Material: Slides powerpoint file Talk link
    • 19:30 - 22:00 Workshop dinner
  • Wednesday, September 15, 2010
    • 09:00 - 11:15 Morning session I.
      Location: Seminar Room 4
      • 09:00 Probing double parton scattering with same-sign W pairs at the LHC 45'
        Speaker: Steve Kom
        Material: Slides pdf file Talk link
      • 09:45 MPI in Vector Boson plus jet(s) production at the LHC 45'
        Speaker: Ezio Maina
        Material: Slides pdf file Talk link
      • 10:30 Dynamical Characteristics of Double Parton Scattering 45'
        Speaker: Ed Berger
        Material: Slides pdf file Talk link
    • 11:15 - 11:30 Coffee break
    • 11:30 - 13:00 Morning session II.
      Location: Seminar Room 4
      • 11:30 4-jet correlations at Tevatron and LHC 45'
        Speaker: Boris Blok
        Material: Slides powerpoint file Talk link
      • 12:15 Recombination within multi-chain contributions in pp scattering 45'
        Speaker: Jochen Bartels
        Material: Talk link
    • 13:00 - 14:00 Lunch break