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Muon Isolation in 22X

Muon Isolation in 22X. Adish Vartak. Monte Carlo samples used. /QCDpt80/Summer08_IDEAL_V11_redigi_v1/GEN-SIM-RECO /Zmumu/Summer08_IDEAL_V11_redigi_v2/GEN-SIM-RECO 100,000 events from each of the files have been used CMSSW 2_2_9 was used for the study. Tracker Isolation.

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Muon Isolation in 22X

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  1. Muon Isolation in 22X AdishVartak

  2. Monte Carlo samples used • /QCDpt80/Summer08_IDEAL_V11_redigi_v1/GEN-SIM-RECO • /Zmumu/Summer08_IDEAL_V11_redigi_v2/GEN-SIM-RECO • 100,000 events from each of the files have been used • CMSSW 2_2_9 was used for the study

  3. Tracker Isolation • Muon from QCD sample • 15 GeV/c cut on recomuon PT • Muon from the Drell Yan sample • 15 GeV/c cut on recomuonPT • MC Truth matching: • Gen pdgId * charge of recomuon = -13 • Gen muon status = 1 • Gen muon parent is Z • δR between gen and recomuon < 0.5 • δPT/PTGenbetween Gen and recomuon < 0.5

  4. Track Quality • Certain custom set of cuts were borrowed from Matt’s earlier study. I refer to these as custom cuts • There are built in quality flags in the reco Track object • loose, tight and highPurity

  5. Matt’s Custom Set of Cuts (New Quality Cuts)

  6. MuonPT(without any cuts)

  7. Muon PTfor Drell Yan sample with MC Matching

  8. Muon PTfor Drell Yan sample with MC Matching and Pt > 15 cut

  9. Muon PTfor QCD sample with PT> 15 cut

  10. Track PTwithout any cuts for Drell Yan Sample

  11. Track PTfor all tracks for QCD Sample

  12. ΣPT Definition • Outer cone radius : 0.3 • Inner Cone radius : 0.015 • Tracks with no cuts, custom cuts and tight cuts have been considered

  13. ΣPTaround Muons (no quality cuts)

  14. ΣPTaround Muons (Custom cuts)

  15. ΣPTaround Muons (Tight cut)

  16. Normalized ΣPTIntegral (no cuts)

  17. Normalized ΣPTIntegral (custom cuts)

  18. Normalized ΣPTIntegral (tight cuts)

  19. Efficiency Plots for Different Track Qualities

  20. Inner Cone Variation (Custom Quality Cuts)

  21. Outer Cone Variation (Custom Quality Cuts)

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