1. Potpourri Vishnu V. Zutshi Northern Illinois University

2. Outline Energy Flow Algorithms muons photons Digital Preliminaries

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

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

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

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

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

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

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

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

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

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

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

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

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

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

17.  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  (10 o )

19. 5GeV  (50 o )

20. 5GeV  (90 o )

21. Energy Asymmetry E L  lowest energy cluster attached to extrapolation E H  highest energy cluster attached to extrapolation (E H – E L )/(E H + E L ) Calculated separately for Ecal and HCal

22. Easymmetry for 

23. Easymmetry for 

24. Easymmetry for e

25. ZZ events

26. ZZ event

30. WW events

31. WW event

33.  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. 

37. 10GeV 

38. 10GeV 

39. 10GeV 

40. 10GeV 

41. 2 GeV  (sqrtE weighting)

42. 2GeV

43. 2GeV  (E weighting)

44. 2GeV  (E 2 weighting)

45. 2GeV 

46. 10GeV 

47. 50GeV e -

48. 20GeV e -

49.  600x1200 (  x 

50. 

51. 

52. 

53. 

54.  150x300 (  x 

55. 

56.  10MeV threshold 600x1200 (  x 

57.  10MeV threshold

58.  150x300 (  x 

59.  20MeV threshold 600x1200 (  x 

60.  20MeV threshold

61.   & K 0 s