Tracking in the Level 1 Trigger

• Role of tracking

  • Top, W/Z, Exotic Physics triggers require High momentum electron and muon Level 1 trigger candidates
  • Bottom Physics require low momentum tracking at the
    Level 1 trigger
    • electrons
    • muons
    • hadronic tracks

• Trigger Electrons

  • Trigger track + EM cluster

• Trigger Muons

  • Trigger track + muon stub

• The tracking trigger needs to provide a track list in time for the Level 1 trigger decision

• The tracking trigger needs to find tracks every crossing, hence the name:

eXtremely Fast Tracker

XFT

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