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ME-MC comparison. Standard Inputs so far ALPGEN GRAPPA MadGraph Generated processes ALPGEN (xs by mlm) W ,Z,DY + nj, n=0..5 Wbb,Zbb,DYbb + nj, n=0..3 GRAPPA W,Z + nj, n=0..2 W+3j available, xs by S. Tsuno Wbb + 0j, xs by S. Tsuno MadGraph W,Z + nj, n=0..3 Wbb,Zbb + nj, n=0..1.

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me mc comparison
ME-MC comparison
  • Standard Inputs so far
    • ALPGEN
    • GRAPPA
    • MadGraph
  • Generated processes
    • ALPGEN (xs by mlm)
      • W,Z,DY + nj, n=0..5
      • Wbb,Zbb,DYbb + nj, n=0..3
    • GRAPPA
      • W,Z + nj, n=0..2
      • W+3j available, xs by S. Tsuno
      • Wbb + 0j, xs by S. Tsuno
    • MadGraph
      • W,Z + nj, n=0..3
      • Wbb,Zbb + nj, n=0..1
summary of results
Summary of Results
  • W+n jets
    • MG
    • GR & AL agree
  • Z+n jets
    • Everything ~OK
  • Wbb+n jets
    • MG>AL by (6, 2) % n=0..1
    • GR & AL agree for n=0
  • Zbb+n jets
    • MG>AL by (8, 6) % n=0..1
conclusions
Conclusions
  • Need to understand differences between ME-MCs
    • Study relative fractions by subprocesses
    • Compare kinematic distributions
    • Communication with authors
  • Work in progress
    • Generate remaining processes
    • CompHEP tunning
    • Shower -> Ntuples->kinematic distributions
    • Get NLO rates from MCFM
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