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Electron selection and p rejection with the NCC

Electron selection and p rejection with the NCC. Vasily Dzhordzhadze University of California,Riverside Forward Upgrades Meeting BNL, August 02, 2004. 10 GeV electron in 40 Layer Si/W Calorimeter. de/dx in Silicon for Section 1. de/dx in Silicon for Section 2.

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Electron selection and p rejection with the NCC

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  1. Electron selection and p rejection with the NCC Vasily Dzhordzhadze University of California,Riverside Forward Upgrades Meeting BNL, August 02, 2004 V.Dzhordzhadze

  2. 10 GeV electron in 40 Layer Si/W Calorimeter V.Dzhordzhadze

  3. de/dx in Silicon for Section 1 V.Dzhordzhadze

  4. de/dx in Silicon for Section 2 V.Dzhordzhadze

  5. de/dx in Silicon for Section 3 V.Dzhordzhadze

  6. Fitting of de/dx , NCC Sec1 V.Dzhordzhadze

  7. Fitting of de/dx , NCC Sec2 V.Dzhordzhadze

  8. Fitting of de/dx , NCC Sec3 V.Dzhordzhadze

  9. Fitting of rms , NCC Sec1 V.Dzhordzhadze

  10. Fitting of rms , NCC Sec2 V.Dzhordzhadze

  11. Fitting of rms , NCC Sec3 V.Dzhordzhadze

  12. c2 distribution • c2 Estimator for NCC Si (ei - < ei >)2 / rms2i = 1, 3 V.Dzhordzhadze

  13. c2 distribution for 1 Gev e V.Dzhordzhadze

  14. c2 distribution for 1 Gev p V.Dzhordzhadze

  15. c2 distribution for 5 Gev e V.Dzhordzhadze

  16. c2 distribution for 5 Gev p V.Dzhordzhadze

  17. c2 distribution for 10 Gev e V.Dzhordzhadze

  18. c2 distribution for 10 Gev p V.Dzhordzhadze

  19. c2 distribution for 20 Gev e V.Dzhordzhadze

  20. c2 distribution for 20 Gev p V.Dzhordzhadze

  21. c2 distribution for 40 Gev e V.Dzhordzhadze

  22. c2 distribution for 40 Gev p V.Dzhordzhadze

  23. Electron selection /p rejections in % • c2 cut 5.0 7.5 10.0 1GeV 83.2/100 93.3/99.1 97.4/78.0 5GeV 78.1/100 88.9/100 93.1/100 10GeV 76.2/100 87.1/100 92.2/100 20GeV 79.5/100 88.1/100 91.9/100 40GeV 76.7/100 85.1/100 89.8/100 V.Dzhordzhadze

  24. Summary • A good electron selection is achievable with NCC, same time having almost 100% pion rejection in momentum interval 1-40 GeV/c • A study of NCC performance continues… V.Dzhordzhadze

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