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HM Update

HM Update. Hyeonjin Kim EG1 meeting, Feb 27, 2008. HM status. Reported strange chi2 distribution for high energy.  fixed it by new parameterization  it didn ’ t help for low rejection issues. because photons in Hgg and JF17 has mostly energy 30 to 150GeV. No TrkIso. w/ TrkIso.

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HM Update

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  1. HM Update Hyeonjin Kim EG1 meeting, Feb 27, 2008

  2. HM status • Reported strange chi2 distribution for high energy.  fixed it by new parameterization  it didn’t help for low rejection issues. because photons in Hgg and JF17 has mostly energy 30 to 150GeV

  3. No TrkIso w/ TrkIso Efficiency vs. Rejection pT > 25GeV pT > 40GeV Hgg (misal) and JF17 (misal)

  4. Efficiency and rejection

  5. v13 v12 Comparison of rejection for v13 and v12 pT > 25GeV pT > 40GeV

  6. Why low Rejection? • Check how powerful IsEM variables are • Check how many fake photon pass by each IsEM variables  IsEM : emax2, emax2-emin, wtot, weta1,f1, fracs1,e233/e237, e237/e277, et4/pT  HM: f1, fracs1, weta1, f0, f2, f3, f4, e233/e277, weta2, isol

  7. Description of variables in IsEM not HM • Wtots1: total width in em sampling1 in 20 strips. • E2tsts1: 2nd maximum in strips. • Emins1: energy of strip with minimum b/w max1 and max2 • Deltae = e2tsts1 – emins1 • Fr1 = e237/e277 • Fr2 = e233/e237

  8. Cut Flow (JF17) HM + IsEM var cut

  9. Cut Flow (Hgg)

  10. Correlation of HM variables with IsEM variables 1. correlation of HM variables which are not in IsEM (isol, f2,fr37,f3,f0) with IsEM variables 2. Correlation of deltae, emax2r and wtots With HM variables

  11. Correlation b/w HM (only) & IsEM Hgg

  12. Correlation b/w IsEM (only) & HM variables Hgg

  13. correlation b/w HM (only) & IsEM JF17

  14. Correlation b/w IsEM (only) & HM variables JF17

  15. Correlation • iso, fr37, f2, f3 & f0 are strongly correlated with other variables used by isEM  HM does not gain much advantage by using iso, fr37, f2, f3, f0. • Emax2, deltae and wtots are weekly correlated with HM variables.  if HM use these variables it can get more information

  16. HM variables Comparison b/w Hgg and single photon • To check parameterization. • To check if single photon sample is good model of photon in Hgg ------------------------------------------------------------------- • Apply energy cut 1. 46 to 50GeV 2. 68 to 75GeV 3. 89 to 100GeV • And eta<0.2 cut

  17. Hgg (ideal) and single photon (100GeV & ideal) Hgg single

  18. Hgg (ideal) and single photon (100GeV & ideal)

  19. Hgg (ideal) and single photon (75GeV & ideal)

  20. Hgg (ideal) and single photon (75GeV & ideal)

  21. Hgg (ideal) and single photon (50GeV & ideal)

  22. Hgg (ideal) and single photon (50GeV & ideal)

  23. Curve : Mean values by parameterization • Red data points: Mean values from single photon samples • Balck data points : Mean values from Higgs in energy , • 46 to 50GeV, 68 to 75GeV and 89 to 100GeV • eta < 0.2 isol f4

  24. f2 fr37 f3 weta2

  25. Eta < 0.2 f1 weta1 fracs1 f0

  26. 0.6 <Eta <0.8 f1 f2 isol

  27. BACKUP

  28. HM variables Comparison b/w Hgg and single photon • Apply energy cut 1. 44 to 50GeV 2. 66 to 75GeV 3. 89 to 100GeV • Apply energy cut and eta<1.0 cut

  29. Hgg (ideal) and single photon (100GeV & ideal)

  30. Hgg (ideal) and single photon (100GeV & ideal)

  31. Hgg (ideal) and single photon (75GeV & ideal)

  32. Hgg (ideal) and single photon (75GeV & ideal)

  33. Hgg (ideal) and single photon (50GeV & ideal)

  34. Hgg (ideal) and single photon (50GeV & ideal)

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