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CURRENT STATUS OF MET

S.Abdullin. CURRENT STATUS OF MET. HLT Data Used. Low lumi. High lumi. ^. 95376 *. 1) 0-15 GeV. 94802 *. P < 15 GeV. 52000. 2) 15-20. 52000. 51500. 3) 20-30. 51500. 35554. 46610. 4) 30-50. 149250. 5) 50-80. 2000. 133497. 98499. 6) 80-120. 2000.

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CURRENT STATUS OF MET

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  1. S.Abdullin CURRENT STATUS OF MET S.Abdullin (UMD), Status of MET

  2. HLT Data Used Low lumi High lumi ^ 95376 * 1) 0-15 GeV 94802 * P < 15 GeV 52000 2) 15-20 52000 51500 3) 20-30 51500 35554 46610 4) 30-50 149250 5) 50-80 2000 133497 98499 6) 80-120 2000 7) 120-170 2000 suncms:/data03/cmsprod/ntupl_output 2000 8) 170-230 2000 19899 9) 230-300 10000 9500 10) 300-380 0 10000 10000 11) 380-470 0 12) 470-600 0 2000 2000 13) 600-800 2000 2000 14) 800-1000 2000 2000 15) 1000-1400 … S.Abdullin (UMD), Status of MET

  3. MET @ Low Luminosity Problem at high MET … In 2002/015 (low lumi) : ~ L1 MET rate = L2 MET rate = 1 kHZ at ~ 65 GeV Now at ~ 75 GeV S.Abdullin (UMD), Status of MET

  4. MET @ Low Luminosity (II) Problem at high MET (shown L2) … Pt=50-80, 2000 ev Pt=80-120, 133497 ev (“bt02”) Previous production (May ?) Pt=120-170, 2000 ev Pt=230-300, 10000 ev HF bug effect ? No… Pt=170-230, 2000 ev Pt=170-230, 2000 ev S.Abdullin (UMD), Status of MET

  5. Reminder : 170-230 GeV @ 1034 JetMetAnalysis (May) My Ntuple maker Highlumi L2 MET Qualitative plots, not translated to rate (no weights, just events) ORCA_6_1_0 L1 MET L2 MET rate ~ stable, L1 MET rate Increases by a factor of ~ 2-3 Sasha’s Ntuple maker My Ntuple maker L1 MET L2 MET ORCA_6_2_0 S.Abdullin (UMD), Status of MET

  6. MET @ High Luminosity Segfault problem … S.Abdullin (UMD), Status of MET

  7. Pileup Subtraction Effect on MET (I) High luminosity consideration Minimum bias sample (hlt0-15, 5000 ev) digitized in 2 ways : default/standard (without pre-samples) with 3 pre-samples in HB/HE/HO/HF both in DAQ and TPG paths One might expect a substantially lower scalar ET sum … Pileup yields ~ 500-1000 GeV of ET sum @ high lumi MET rate (both L1 and L2) is expected to be lower S.Abdullin (UMD), Status of MET

  8. Pileup Subtraction Effect on MET (II) Both L1 and L2 MET rates became lower after simple pileup subtraction High lumi Translation to rate by just scaling to 31.5 MHz S.Abdullin (UMD), Status of MET

  9. Pileup Subtraction Effect on MET (III) H(120) invisible small difference rms = 31.3 rms = 29.1 rms = 27.5 rms = 26.8 High lumi S.Abdullin (UMD), Status of MET

  10. Pileup Subtraction Effect on MET (IV) H(120) invisible High lumi small difference S.Abdullin (UMD), Status of MET

  11. Pileup Subtraction Effect on MET (V) QCD (raw) rate vs H(120) invisible efficiency pileup subtraction yields a small benefit (?) S.Abdullin (UMD), Status of MET

  12. BCID Effect on L1 MET (I) H(120) invisible mean=-14.0, rms = 31.3 mean=-12.6, rms = 31.1 High lumi S.Abdullin (UMD), Status of MET

  13. BCID Effect on L1 MET (II) H(120) invisible BCID effect ? L1 granularity and LSB=1 GeV All known tricks L2->L1 except BCID S.Abdullin (UMD), Status of MET

  14. Miscellanea … Next 1-2 days : L1 & L1 MET @ low/high lumi to clarify the situation … Special thanks to Olga, who helped me to unlock once deadly locked private Objy DB with BCID and presamples data … S.Abdullin (UMD), Status of MET

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