LHCb opposite side (OS) B-tagging algorithms upgrading
- separate training:
- electron tracks
- muon tracks
- kaon tracks
- vertex
- decision rule to union them
- bins calibration for estimator output to get probabilities
- for track taggers one track for each event is selected to establish sign for B
- tracking inclusive tagger
- vertex tagger
- union of tracking and vertex tagger
- isotonic calibration
All analysis scheme is presented here