Performance of Jet Finding

General Information

Tools and procedure

Using HID root file that contains CaloJet? reconstruction data which was reconstructed and converted in CMSSW, It was possible to access reconstructed jet data from HIROOT. There are mixed and unmixed MC information in same root file, so It was also possible to run jet finding module on that information.
  • event file : cgate.mit.edu:/pnfs/cmsaf.mit.edu/hibat/cms/users/gammajets
    • pyquen
    • pyquenmixed
    • pythia
    • pythiamixed

Naming Rule

  • HR Gen Part Jet : Jets from MC particle information
  • CS Reco Calo Jet : Reconstructed jets from calorimeter information in CMSSW

HR Gen Part Jet vs CS Reco Calo Jet

Condition 1 : Using Only Signal Record

  • HR Gen Part Jet - Iterative Cone Finder
    • Seed threshold : 2/5/10 GeV?
    • Jet threshold : 30 GeV?
    • use only one signal record in one event.

Et Distribution


Et Correlation


Matching Efficiency


Et Resolution


Condition 2 : Using Signal Record + Background Record

  • HR Gen Part Jet - Iterative Cone Finder
    • Seed threshold : 2/5/10 GeV?
    • Jet threshold : 30 GeV?
    • use only one signal record in one event.

Et Distribution


Et Correlation


Matching Efficiency


Et Resolution


Condition 3 : Using All Records

  • HR Gen Part Jet - Iterative Cone Finder
    • Seed threshold : 2/5/10 GeV?
    • Jet threshold : 30 GeV?
    • use only one signal record in one event.

Et Distribution


Et Correlation


Matching Efficiency


Et Resolution


-- GaramHahn - 29 Aug 2007

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Topic revision: r1 - 2007-12-03 - GaramHahn
 
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