Information for Reconstructing and Identifying Electrons

The Summer08 samples contain the Electron Identification information optimized with CMSSW_1_6_7 samples.

The electron identification list is from CMS AN-2008/082 (attached below):

• eidRobustLoose
  • Table 2 page 6 (Fixed-threshold identification for Z→ee)
  • RecoEgamma/ElectronIdentification/python/electronIdSequence_cff.py
    
• eidRobustTight
  • Table 3 page 6 (Fixed-threshold identification for W→eν)
  • RecoEgamma/ElectronIdentification/python/electronIdCutBasedExt_cfi.py
    
• eidRobustHighEnergy
  • Fixed-threshold electron identification present only when creating Pat::Electron's (not in official Egamma code)
  • PhysicsTools/PatAlgos/python/recoLayer0/electronId_cff.py
• eidLoose
  • Table 5 page 8 (Category based identification for Z→ee)
  • RecoEgamma/ElectronIdentification/python/electronIdSequence_cff.py
    
• eidTight
  • Table 6 page 11 (Category based identification for W→eν)
  • RecoEgamma/ElectronIdentification/python/electronIdCutBasedExt_cfi.py
    
  • cuts have been newly optimized with respect to the table in the note

To modify the cut-based electron id. code, take a look at this class:

RecoEgamma/ElectronIdentification/src/CutBasedElectronID.cc

-- RiccardoRanieri - 2009/04/24