Scratchpad: German LHC Physics School 2010: leptons


  • intended to teach physics
  • not intended to teach CRAB / CMSSW / ... (as little as possible)



Morning session

see indico

Tutorial: Physics with dileptons

"Invariante masse plotten und dann daran drehen"

  • keep in mind that computing skills on this day will be lowest, but there will be a computing intro on Monday too
  • time: ~2.5 hours
  • preferably use data samples only

  • possible analyses (and or combinations thereof, just a few things that come to mind):
    1. Select and fit J/psi (or Z, depending on available Lumi), vary lepton cuts - how much does one have to change relative to "standard" ID cuts? if too far it does not make much sense)
      1. potentially calculate inv mass on foot (to understand invariant mass)
      2. Muons: define different dimuon types (gg, gt, tt), add muID selectors + overlap cleaning + diLep vertex requirement
      3. Electrons: learn more page 15 gives ele jpsi peak
      4. Produce S/B or purity vs efficiency plot for different leptonID regions
      5. Distinguish trigger threshold and trigger efficiency, also in presence of other triggers (to understand effect of other triggers on trigger thresholds)
      6. Calibration study - use calibrated Z -> ee, decalibrate, look at resolution effect)

Discussion: Wo ueber W sprechen?

  • Donnerstag zur Beschreibung von Untergruenden, da dann MET auch bekannt ist? -> Comment: Will not go into MET in Jets session.
  • THIS: Besser: auch noch in den Dienstag and MET vorgreifen? Dann waere es in "Physics Cases" mit drin.


  • Benedikt and Roger will provide datasets and baseline skeleton code for analysis.
    • They need to know which datasets will be needed
Question: T/P was mentioned - would Benedikt and Roger provide the full analyzer for it?

-- IngoBloch - 26-May-2010

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Topic revision: r8 - 2010-07-05 - IngoBloch
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