EF Tracking Study using Cosmics (ESDs)

Analysis Plan

ID Detector Status: (for each run we use)

  • Run summary (PIX-SCT-TRT, B-field)
  • Check ID DQM
    • Hardware switched off
    • Dead areas in some eta/phi/z0/d0 histograms
  • Alignment constants ?

EFID Track Study: (People: ?)

  1. Characterise strange tracks
  2. Characterise good tracks
    • Differences between EF and offline
  3. Hit Efficiency
    • Within a good geometrical region of ID --> "Should have crossed X layers + have y hits ==> hit efficiency"

EFID vs Offline: (Jenna, Stefan)

  1. Offline Track Selection
    • Any
    • 3+3 (si hits), abs(d0) < 100 mm, abs(z0) < 400 mm
  2. Resolution
    • Offline - EF, all track parameters
  3. Track Efficiency

EFID Only Performance: (John, Mark)

  1. Resolution
    • EF_1 - EF_2, (both B-field ON/OFF) could (perhaps?) give infoamtion about alignment
  2. Absolute Track efficiency

ID vs Muon, EF Tracking: (People: Graham, Jiri)

  1. xxx


  1. Comparison with MC

General Info

  • The private processed samples are currently available at:
  • A package for the offline studies has been created, instructions are available at HLTIDTrackingAna
  • Outline of the note: ef_cosmic.tex, ef_cosmic.pdf

Offline Track Selection

  • Not much info about other cosmics studies, other than L2 Task Force
  • Pt cut: Standard offline perf cut is 1GeV, but L2 task force don't make a Pt cut
  • Detector hits: 3+3 Si hits seems reasonable, but could be more stringent, e.g. require a b layer hit, or at least some pixel hits.
  • Offline studies on MC also used hit matching, but probably not necessary since we have delta R matching
  • Crack region - might be important, still looking at this.

-- StefanAsk - 14 Nov 2008

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf ef_cosmic.pdf r1 manage 34.6 K 2008-12-12 - 09:05 StefanAsk  
Unknown file formattex ef_cosmic.tex r1 manage 3.9 K 2008-12-12 - 09:05 StefanAsk  
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Topic revision: r12 - 2008-12-12 - StefanAsk
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