ELECTRON IDENTIFICATION

"Tight" selection:

  1. P > 4 GeV/c
  2. EM Energy > 3GeV
  3. Had Energy < 5GeV
  4. EM Energy / P > 0.3
  5. Must be seen by the TPC; VD and ID are sufficient if the track is pointing to a TPC crack and it is not identified as a V0

"Loose" selection:

  1. P > 4GeV/c
  2. Must be seen by the TPC; VD and ID are sufficient if the track is pointing to a TPC crack and it is not identified as a V0
  3. Must point to a 40 or 90 deg crack
  4. Not identified as a muon
  5. dE/dx > 1.4 or tagger signal associated