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Impact of Dead LAr EM Cells/FEBs on Electron Trigger Selection Efficiencies

Impact of Dead LAr EM Cells/FEBs on Electron Trigger Selection Efficiencies. Andrew Lowe Royal Holloway, University of London. Introduction. First look at running e/gamma Framework on H ZZ (*) 4e data for a number of Higgs masses (no fake electronic problems)

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Impact of Dead LAr EM Cells/FEBs on Electron Trigger Selection Efficiencies

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  1. Impact of Dead LAr EM Cells/FEBs on Electron Trigger Selection Efficiencies Andrew Lowe Royal Holloway, University of London

  2. Introduction • First look at running e/gamma Framework on HZZ(*)4e data for a number of Higgs masses (no fake electronic problems) • ~95% data for 0, 0.1, 0.2, 0.5, 1, 2, and 5% dead cells and FEBs for H4e (MH=130, 180, and 300 GeV) and Zee and Weν • Investigating why very low efficiencies are obtained with this data • Examination of PT of electrons in data

  3. Mean electron identification efficiency after all trigger levels vs. percentage of dead cells

  4. Mean electron identification efficiency after all trigger levels vs. percentage of dead FEBs

  5. Results(Electron Identification Efficiencies)

  6. PT of electrons, HZZ(*)4e, MH=130 GeV

  7. PT of four highest PT electrons, HZZ(*)4e, MH=130 GeV

  8. Invariant mass of e+e- pair,HZZ(*)4e, MH=130 GeV

  9. Invariant mass of 4 highest PT electrons,HZZ(*)4e, MH=130 GeV

  10. Invariant mass of e+e- pair,HZZ(*)4e, MH=180 GeV

  11. Invariant mass of four highest PT electrons, HZZ(*)4e, MH=180 GeV

  12. Invariant mass of e+e- pair, HZZ(*)4e, MH=300 GeV

  13. Invariant mass of four highest PT electrons, HZZ(*)4e, MH=300 GeV

  14. Number of electrons per event,HZZ(*)4e, MH=130 GeV

  15. Number of electrons from Higgs among the four highest PT electrons, HZZ(*)4e, MH=130 GeV

  16. Number of electrons per event that undergo bremsstrahlung, HZZ(*)4e, MH=130 GeV

  17. Number of electrons that undergo anomalous conversions to photons,HZZ(*)4e, MH=130 GeV

  18.  of highest PT electrons, HZZ(*)4e, MH=130 GeV

  19. PT of electrons that undergo bremsstrahlung, HZZ(*)4e, MH=130 GeV

  20. PT of electrons that undergo anomalous conversion to photons, HZZ(*)4e, MH=130 GeV

  21. PT of electrons that undergo bremsstrahlung,HZZ(*)4e, MH=180 GeV

  22. PT of electrons that undergo anomalous conversion to photons, HZZ(*)4e, MH=180 GeV

  23. PT of electrons that undergo bremsstrahlung,HZZ(*)4e, MH=300 GeV

  24. PT of electrons that undergo anomalous conversion to photons, HZZ(*)4e, MH=300 GeV

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