Lepton identification

Muon identification

• Good muon

  • QMUIDO flag > 0

   

• Muon in a HCAL crack

  • not a Good Muon

  • Track extrapolation through a HCAL barrel crack (HMAD-like extrapolation)

  • Track associated ECAL energy 0 < E_ECAL < 1 GeV, E_ECAL < 0.1·E_lept, Track associated HCAL energy E_HCAL < 5 GeV, E_HCAL < 0.1·E_lept

Electron identification

• Good electron

  • not a Muon

  • R_I > -2.5 , -2.5 < R_L < 100, -8 < R_T < 100

   

• Electron in an ECAL crack

  • not a Muon

  • not a Good Electron

  • Track extrapolation through an ECAL crack (ECCRACK extrapolation)

  • -2.5 < R_I < 999

  • In the most energetic (digital energy) HCAL digital cluster (PPOB) associated to the track, the difference between the last and the first plane number H_Lplane-H_Fplane < 11

• Electron identification estimator corrections

  The corrections applied in real data and MC data to the electron estimators R_T,  R_L and R_I in Common Ntuples version 1.4 and version 1.42 onward can be found here

03/02/03