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Energy and Spatial Resolution of HyCal

Energy and Spatial Resolution of HyCal. Liyang Jiang UNCW/CIAE. Energy Resolution E Resolution vs Incident Energy E Resolution vs Incident Position Position Resolution Position Resolution vs Incident Energy Position Resolution vs Incident Position. Energy Resolution vs E tagger.

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Energy and Spatial Resolution of HyCal

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  1. Energy and Spatial Resolution of HyCal Liyang Jiang UNCW/CIAE

  2. Energy Resolution • E Resolution vs Incident Energy • E Resolution vs Incident Position • Position Resolution • Position Resolution vs Incident Energy • Position Resolution vs Incident Position

  3. Energy Resolution vs E tagger

  4. Information of runs for energy resolution • Lead Tungstate • Run number 4280 • Five minutes deep statistic run on PWO cell 1016 • Lead Glass • Run number 4279 • Five minutes deep statistic run on Glass cell 657

  5. Incident Energy distribution

  6. E tagger – E cluster Histogram (Glass)

  7. Linearity of Energy Reconstruction (Glass) Red lines: 1+/- 3%

  8. Ereconstructed/Etagger, show error bars (Glass)

  9. Energy Resolution Curve (Glass)

  10. E tagger – E cluster Histogram (PWO)

  11. Linearity of Energy Reconstruction(PWO) Red lines: 1+/- 1%

  12. Ereconstructed/Etagger, show error bars (PWO)

  13. Resolution Curve (PWO)

  14. Position Resolution vs E tagger

  15. Gaussian Fit Results (PWO) Eg=5.47GeV Eg=4.76GeV X (cm) X (cm) Eg=3.09GeV Eg=2.27GeV X (cm) X (cm)

  16. X VS E gamma (PWO) X (cm)

  17. X sigma VS E gamma (PWO)

  18. Gaussian Fit Results (Glass) Eg=5.47GeV Eg=4.76GeV Eg=3.09GeV Eg=2.27GeV

  19. X VS E gamma (Glass)

  20. X sigma VS E gamma (Glass)

  21. Position Resolution vs Position

  22. Information of runs • Snake Scan runs • PWO: Run 4178 • Row 9 • Lead Glass: Run 4155 • Bottom Row 3 • Because of low statistics, all tagger energy events are included.

  23. Position in EPICS bank • Position information of HyCal is read from EPICS bank • The EventID vs EPICS positon plots are fitted linearly to calculate the position of events without EPICS bank

  24. EPICS Position vs Event IDRun 4178, PWO Row 9

  25. EPICS Position vs Event IDRun 4155, Glass Bottom Row 3

  26. Single Gaussian Fitting (Glass)

  27. LinearityRun 4178, PWO

  28. Resolution CurvePWO

  29. LinearityRun 4155, Lead Glass

  30. Resolution CurveGlass

  31. Comparison to Prototype Resol. Curve 1 cell unit≈2 cm

  32. A Simple Simulation • Simulate the distribution of X reconstructed with different resolution curves.

  33. The Xrecons Distribution (Experimental)

  34. Original X (Uniform distribution)

  35. Cosine Resolution and Reconstructed X

  36. Bottom-Jump Resolution and Reconstructed X

  37. X reconstructed comparison Experiment Simulation

  38. Summary • This work provided the Resolution curves of σE vs E, σX vs E and σX vs X. • The σX vs X curve’s behavior at the edge of cells should be studied in detail • σE vs X curve need a deep statistic scan.

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