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Analysis aims Data samples Analysis chains Results Conclusions

Wobble and On-Off Sensitivity comparisons Saverio Lombardi, INFN - Padova slombard@pd.infn.it Munich Collaboration Software Premeeting 2008/04/22. Overview. Analysis aims Data samples Analysis chains Results Conclusions. Analysis aims. Confirmation of the improvements due to the

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Analysis aims Data samples Analysis chains Results Conclusions

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  1. Wobble and On-OffSensitivitycomparisonsSaverio Lombardi, INFN - Padovaslombard@pd.infn.itMunich Collaboration Software Premeeting 2008/04/22

  2. Overview • Analysis aims • Data samples • Analysis chains • Results • Conclusions

  3. Analysis aims • Confirmation of the improvements due to the time informations added in the analysis chain • Comparison of the Sensitivities for different cleanings(for On-Off mode) • Comparison between the performances of the 2 different data taken mode

  4. CRAB MUX Data samples • Off sample: 2.12 hours (2007/02/12-13), 14< Zd <30, PSF ~ 13mm On sample: 5.64 hours (2007/02/13-15-17-19), 8< Zd <30, PSF ~ 13mm • Wobble sample: 3.35 hours(2007/02/14-16), 8< Zd <30, PSF ~ 13mm (B2-1215+30 source (2007/03/12 - same Off day) for Wobble training) • MC data (On-Off, Wobble): 1  zbin 12STD Energy (power law=-2.6), PSF ~ 13mm

  5. Analysis chains • Mars Version: 1-5-4 • Calibrated data from PIC • Preliminary Cuts: • STD Filter and Quality cuts • Lower Size = 80 phe • 40 < Dist [mm] < 340 ---> only for On-Off samples • Checks of the rates ---> runs rejections • Considered Cleanings: ABS6-3 [+ time constraints, Notime constraints] ABS[4-2, 5-2.5, 7-4] + t.c. SCALED[3-1, 2.5-0.5] +t.c. • Considered Osteria settings: STD-timing RF and STD-Notiming RF

  6. ON-OFF

  7. On-Off: ABS6-3(t.c) - TimeRF Low E: 30 <Conc*Size [phe] 60, |Alpha|< 12, Had.< 0.15

  8. On-Off: ABS6-3(t.c) - NO TimeRF Low E: 30 <Conc*Size [phe] 60, |Alpha|< 12, Had.< 0.15 - 65.6%

  9. On-Off: ABS6-3(t.c) - TimeRF Intermediate E: Conc*Size [phe] 100, |Alpha|< 7, Had.< 0.04

  10. On-Off: ABS6-3(t.c) - NO TimeRF Intermediate E: Conc*Size [phe] 100, |Alpha|< 7, Had.< 0.04 +30.8%

  11. On-Off: ABS6-3(t.c) - TimeRF High E: Conc*Size [phe] 400, |Alpha|< 7, Had.< 0.15

  12. On-Off: ABS6-3(t.c) - NO TimeRF High E: Conc*Size [phe] 400, |Alpha|< 7, Had.< 0.15 +37.5%

  13. On-Off: Comparison results Low E (peak~100 GeV) 30 <Conc*Size [phe] 60, |Alpha|< 12, Had.< 0.15 Exc. Exc./Sqrt(Bkg) SigmaLiMa Sensitivity % Diff. [%Crab, 50h] Exc./Sqrt(Bkg) ABS6-3TT 498 8.10 3.75 20.746.08 0% ABS6-3Tn 151 2.79 1.30 60.2552.55 -65.6% ABS6-3nT 314 5.94 2.78 28.2611.28 -26.7% ABS6-3nn ~ 0 - - - - ABS4-2TT ~ 0 - - - - ABS5-2.5TT 439 7.64 3.54 21.976.86 -5.7% ABS7-4TT 520 8.13 3.81 20.665.95 +0.4% SCL3-1TT ~ 0 - - - - SCL2.5-0.5TT ~ 0 - - - -

  14. On-Off: Comparison results Intermediate E (peak~280 GeV) Conc*Size [phe] 100, |Alpha|< 7, Had.< 0.04 Sensitivity Gamma rate Hadron rate Rate % Diff. [%Crab, 50h] [evts/min] [evts/min] ratio Sensitivity ABS6-3TT 1.430.14 3.59 0.32 11.2 0% ABS6-3Tn 1.870.15 3.50 0.51 6.9 +30.8% ABS6-3nT 1.720.15 3.50 0.44 8.0 +20.3% ABS6-3nn 1.840.15 3.50 0.50 7.0 +28.7% ABS4-2TT 2.530.23 2.49 0.48 5.2 +76.9% ABS5-2.5TT 1.730.16 3.29 0.39 8.4 +21.0% ABS7-4TT 1.560.13 3.72 0.41 9.1 +9.1% SCL3-1TT 1.620.15 3.18 0.32 9.9 +13.3% SCL2.5-0.5TT 1.630.17 2.82 0.25 11.3 +14.0%

  15. WOBBLE

  16. Wobble: ABS6-3(t.c) - TimeRF Low E: 30 <Conc*Size [phe] 60, |Alpha|< 12, Had.< 0.15

  17. Wobble: ABS6-3(t.c) - NO TimeRF Low E: 30 <Conc*Size [phe] 60, |Alpha|< 12, Had.< 0.15 - 77.8%

  18. Wobble: ABS6-3(t.c) - TimeRF Intermediate E: Conc*Size [phe] 100, |Alpha|< 7, Had.< 0.04

  19. Wobble: ABS6-3(t.c) - NO TimeRF Intermediate E: Conc*Size [phe] 100, |Alpha|< 7, Had.< 0.04 +28.3%

  20. Wobble: ABS6-3(t.c) - TimeRF High E: Conc*Size [phe] 400, |Alpha|< 7, Had.< 0.15

  21. Wobble: ABS6-3(t.c) - NO TimeRF High E: Conc*Size [phe] 400, |Alpha|< 7, Had.< 0.15 +70.7%

  22. ON-OFF vs WOBBLE

  23. ON-OFF vs WOBBLE (for STD analysis)(2.12h+2.12h) vs (2.12h) ON-OFF Low E: 90 < E [GeV] < 120, |Alpha|< 14, Had.< 0.15

  24. ON-OFF vs WOBBLE (for STD analysis)(2.12h+2.12h) vs (2.12h) WOBBLE Low E: 90 < E [GeV] < 120, |Alpha|< 14, Had.< 0.15 - 68.8%

  25. ON-OFF vs WOBBLE (for STD analysis)(2.12h+2.12h) vs (2.12h) ON-OFF Int. E (~280 GeV): Size > 400 phe, |Alpha|< 7, Had.< 0.04

  26. ON-OFF vs WOBBLE (for STD analysis)(2.12h+2.12h) vs (2.12h) WOBBLE Int. E (~280 GeV): Size > 400 phe, |Alpha|< 7, Had.< 0.04 +22.8%

  27. ON-OFF vs WOBBLE (for STD analysis)(2.12h+2.12h) vs (2.12h) ON-OFF High E (~1.1 TeV): Size > 1000 phe, |Alpha|< 7, Had.< 0.04

  28. ON-OFF vs WOBBLE (for STD analysis)(2.12h+2.12h) vs (2.12h) WOBBLE High E (~1.1 TeV): Size > 1000 phe, |Alpha|< 7, Had.< 0.04 +41.9%

  29. Conclusions • Improvement of the timing analysis chain confirmed (one more time) for both data taken mode (~30% for Interm. E) • ABS6-3 + t.c. is the best cleaning in terms of Sensitivity Both time informations in IC and in RF are necessary • On-Off vs Wobble (w.r.t the fixed applied analysis cuts): • Low E (90< E [GeV] < 120): On-Off better ~ 70% in term of Exc./Sqrt(Bkg) • Intermediate E (~280GeV): On-Off better ~25% in term of the Sensitivity • High E (~1.1 TeV): On-Off mode is ~40% better than Wobble mode in term of Sensitivity • More statistics needed in order to improve the results particularly for the low Energies

  30. Interesting “Wobble-Tables” • Wobble sample: 3.35h, Wobble MC: 1 < zbin < 12 : • Lower Size cut = 80 phes, no Dist cut applied • Logarithmic Energy Bins: 1.7 - 3.5, step 0.3 • Linear Hadronness Bins: 0.02 - 5, step 0.02 • Number of OFF points = 1 • Signal region: |Alpha| < 16 for log10(E)  2 |Alpha| < 12 for 2  log10(E)  2.2 |Alpha| < 10 for 2.2  log10(E)  2.4 |Alpha| < 8 for log10(E) > 2.4 • Q-factors -> MC Wobble data • Sensitivity (% CRAB, 50h) -> Real Wobble data • Gamma rate -> Real Wobble data

  31. Wobble - Qfactors

  32. Wobble - Sensitivity

  33. Wobble - Gamma Rate [evts/min]

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