Difference: OliverGutscheDSGWithoutAllNJetCutsMETCutDetermination ( vs. 1)

Revision 111 Nov 2008 - Main.OliverGutsche

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META TOPICPARENT name="OliverGutscheDSGWithoutAllNJetCuts"

WW Baseline without njet cuts

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 total
all 818.2 ± 11.2 43.4 ± 2.4 11.4 ± 1.1 105.8 ± 14.1 117.8 ± 10.6 307.6 ± 17.4 70.3 ± 8.6 7166.6 ± 56.2 709.2 ± 10.0 498.4 ± 13.4 38.4 ± 1.7 120.8 ± 4.8 10007.9 ± 65.5
mm 160.2 ± 5.0 10.6 ± 1.2 5.8 ± 0.8 3.5 ± 2.0 0.0 ± 0.0 299.9 ± 17.2 10.7 ± 3.1 1649.2 ± 27.0 162.1 ± 4.8 243.4 ± 9.4 15.3 ± 1.1 34.0 ± 2.5 2594.7 ± 34.4
em 551.9 ± 9.2 25.5 ± 1.9 1.5 ± 0.4 88.9 ± 12.6 0.0 ± 0.0 7.7 ± 2.8 55.4 ± 7.8 4509.7 ± 44.6 444.2 ± 7.9 84.4 ± 5.5 14.9 ± 1.0 61.4 ± 3.4 5845.5 ± 49.1
ee 106.1 ± 4.0 7.3 ± 1.0 4.0 ± 0.7 13.4 ± 5.9 117.8 ± 10.6 0.0 ± 0.0 4.2 ± 1.9 1007.7 ± 21.0 102.9 ± 3.8 170.6 ± 7.8 8.2 ± 0.8 25.5 ± 2.2 1567.7 ± 26.3

WW Baseline without njets cut and MET > 50 cut

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 total
all 491.1 ± 8.7 27.7 ± 2.0 9.7 ± 1.0 33.7 ± 8.9 61.2 ± 7.5 194.9 ± 13.8 20.2 ± 4.1 5523.4 ± 49.4 528.3 ± 8.6 490.8 ± 13.3 38.0 ± 1.7 117.3 ± 4.7 7536.3 ± 56.0
mm 134.7 ± 4.5 8.7 ± 1.1 5.1 ± 0.8 1.4 ± 1.4 0.0 ± 0.0 194.9 ± 13.8 8.6 ± 2.7 1507.9 ± 25.8 147.2 ± 4.6 239.8 ± 9.3 15.3 ± 1.1 34.0 ± 2.5 2297.5 ± 31.7
em 267.2 ± 6.4 12.8 ± 1.3 0.9 ± 0.3 19.9 ± 6.5 0.0 ± 0.0 0.0 ± 0.0 8.4 ± 2.6 3102.5 ± 37.0 287.0 ± 6.4 82.9 ± 5.5 14.5 ± 1.0 58.2 ± 3.3 3854.3 ± 39.3
ee 89.2 ± 3.7 6.2 ± 0.9 3.7 ± 0.6 12.4 ± 5.8 61.2 ± 7.5 0.0 ± 0.0 3.3 ± 1.7 913.0 ± 20.0 94.1 ± 3.6 168.1 ± 7.8 8.1 ± 0.8 25.1 ± 2.2 1384.4 ± 24.2

WW Baseline without njets cut and MET > 100 cut

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 total
all 50.7 ± 2.8 3.7 ± 0.7 2.4 ± 0.5 2.1 ± 1.5 2.3 ± 1.4 20.5 ± 4.6 3.5 ± 1.6 1081.8 ± 22.0 95.4 ± 3.7 415.1 ± 12.2 33.5 ± 1.6 97.1 ± 4.3 1807.9 ± 26.5
mm 16.1 ± 1.6 1.1 ± 0.4 1.0 ± 0.3 0.0 ± 0.0 0.0 ± 0.0 20.5 ± 4.6 2.2 ± 1.3 311.3 ± 11.8 27.0 ± 2.0 201.2 ± 8.5 13.1 ± 1.0 28.9 ± 2.3 622.5 ± 15.7
em 26.3 ± 2.0 1.5 ± 0.5 0.2 ± 0.2 2.1 ± 1.5 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 591.8 ± 16.3 50.7 ± 2.7 69.2 ± 5.0 13.5 ± 1.0 48.5 ± 3.0 804.0 ± 17.7
ee 8.3 ± 1.1 1.1 ± 0.4 1.1 ± 0.4 0.0 ± 0.0 2.3 ± 1.4 0.0 ± 0.0 1.3 ± 0.9 178.6 ± 8.9 17.7 ± 1.6 144.6 ± 7.2 6.8 ± 0.7 19.6 ± 1.9 381.5 ± 11.9

WW Baseline without njets cut and MET > 200 cut

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 total
all 6.8 ± 1.0 0.6 ± 0.3 0.4 ± 0.2 0.0 ± 0.0 0.0 ± 0.0 1.8 ± 1.3 0.6 ± 0.6 66.5 ± 5.5 4.1 ± 0.8 239.5 ± 9.3 22.1 ± 1.3 52.7 ± 3.2 395.0 ± 11.5
mm 2.3 ± 0.6 0.3 ± 0.2 0.2 ± 0.2 0.0 ± 0.0 0.0 ± 0.0 1.8 ± 1.3 0.6 ± 0.6 22.3 ± 3.2 0.7 ± 0.3 119.4 ± 6.6 8.6 ± 0.8 14.7 ± 1.7 170.9 ± 7.7
em 3.1 ± 0.7 0.3 ± 0.2 0.1 ± 0.1 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 28.4 ± 3.6 3.0 ± 0.6 40.8 ± 3.8 9.6 ± 0.8 28.9 ± 2.3 114.0 ± 5.9
ee 1.4 ± 0.5 0.0 ± 0.0 0.1 ± 0.1 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 15.9 ± 2.7 0.4 ± 0.2 79.3 ± 5.3 3.9 ± 0.5 9.1 ± 1.3 110.1 ± 6.2

poor man's fit to background reduction dependent on hyp_met cut

  • expo fit:
    • take met cut values as x values
    • take corresponding event yields of all samples except LM? as y values
    • let ROOT fit with "expo" ( f(x) = exp(p0+p1*x) )


  • use all fit, calculate MET cut for 10% background, which results in MET_Cut = (ln ( f(x) ) - p0)/p1 = ( ln(10)-5.994 ) / -0.0338 = ~110 GeV
  • use em fit, calculate MET cut for 10% background, which results in MET_Cut = (ln ( f(x) ) - p0)/p1 = ( ln(10)-5.878 ) / -0.03406 = ~105 GeV

  • use all fit, calculate MET cut for 1% background, which results in MET_Cut = (ln ( f(x) ) - p0)/p1 = ( ln(1)-5.994 ) / -0.0338 = ~175 GeV
  • use em fit, calculate MET cut for 1% background, which results in MET_Cut = (ln ( f(x) ) - p0)/p1 = ( ln(1)-5.878 ) / -0.03406 = ~172 GeV
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