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Hit-based displaced vertex implementation (ATR-19322)

Kunihiro Nagano requested to merge nagano/athena:hitdv_ftf_dev into master

MR for hit-based displaced vertex implementation

  • JIRA: https://its.cern.ch/jira/browse/ATR-19322
  • Added hit-based DV in FastTrackFinder (FTF)
    • A property ("doJseedHitDV") to switch on/off hit-based DV
    • Seed directions taken from L1_J30 RoIs
    • Collects space-points (dR<0.6 from seeds) and tracks (dR<1.0 from seeds), and association between them (whether the space point is used by track). Some quality cuts are applied to tracks.
    • Fills 3 new EDMs to pass the following hypo (which is not yet implemented in this MR)
    • The new EDMs are added in TrigEDM
    • A timer to measure timing for this hit-based DV finding
  • With handful test events of MC ttbar, the timing and EDM size were
    • Timing: ~45 ms average
    • EDM size: ~45 kb/event

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