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Potpourri

Potpourri. Vishnu V. Zutshi Northern Illinois University. Outline. Energy Flow Algorithms muons photons Digital Preliminaries. 5GeV m (90 o ). Energy weighted width in Ecal (cms). 5GeV m (70 o ). Energy weighted width in Ecal (cms). 10GeV m (90 o ).

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Potpourri

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  1. Potpourri Vishnu V. Zutshi Northern Illinois University

  2. Outline • Energy Flow Algorithms muons photons • Digital Preliminaries

  3. 5GeV m (90o) Energy weighted width in Ecal (cms)

  4. 5GeV m (70o) Energy weighted width in Ecal (cms)

  5. 10GeV m (90o) Energy weighted width in Ecal (cms)

  6. 10GeV m (70o) Energy weighted width in Ecal (cms)

  7. 5GeV m (90o) Energy weighted width in Hcal (cms)

  8. 5GeV m (70o) Energy weighted width in Hcal (cms)

  9. 10GeV m (90o) Energy weighted width in Hcal (cms)

  10. 10GeV m (70o) Energy weighted width in Hcal (cms)

  11. 10GeV m in ECal Theta index of highest energy cell B=0

  12. 10GeV m in HCal Theta index of highest energy cell B=0

  13. 5GeV m in ECal Theta index of highest energy cell B=0

  14. 5GeV m in HCal Theta index of highest energy cell B=0

  15. 2GeV m in ECal Theta index of highest energy cell B=0

  16. 2GeV m in HCal Theta index of highest energy cell B=0

  17. m Clustering • Assume that every track is a muon candidate and extrapolate it into the calorimeter • Search for ‘hit’ cell in a layer a momentum dependent window • Do 1x1 window clustering • Decide if consistent with muon

  18. 5GeV m (10o)

  19. 5GeV m (50o)

  20. 5GeV m (90o)

  21. Energy Asymmetry • EL lowest energy cluster attached to extrapolation • EH  highest energy cluster attached to extrapolation • (EH – EL)/(EH + EL) • Calculated separately for Ecal and HCal

  22. Easymmetry for m

  23. Easymmetry for p

  24. Easymmetry for e

  25. ZZ events

  26. ZZ event

  27. ZZ event

  28. ZZ event

  29. ZZ event

  30. WW events

  31. WW event

  32. WW event

  33. g clustering • ‘Layer’-by-’Layer’ transverse clustering • Search for local maxima followed by nearest neighbor accretion • Does cluster satisfy gamma hypothesis? • Implement a tracking filter to connect clusters from different layers • No cell sharing at the moment

  34. 5GeV electron

  35. 20GeV pi0

  36. p0

  37. 10GeV g

  38. 10GeV p

  39. 10GeV g

  40. 10GeV p

  41. 2 GeV g (sqrtE weighting)

  42. 2GeV

  43. 2GeV g (E weighting)

  44. 2GeV g (E2 weighting)

  45. 2GeV g

  46. 10GeV g

  47. 50GeV e-

  48. 20GeV e-

  49. p 600x1200 (hxf)

  50. p 600x1200 (hxf)

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