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DSG with njet cut

Oli: running again at CERN

  • running again at CERN with all samples
  • without nTrk > 2 cut

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 total
all 503.9 ± 8.8 13.6 ± 1.4 4.0 ± 0.7 58.0 ± 12.1 31.5 ± 6.1 52.2 ± 8.4 24.7 ± 5.7 145.9 ± 8.0 48.7 ± 2.6 19.1 ± 2.6 2.8 ± 0.5 4.5 ± 0.9 909.0 ± 21.1
mm 91.7 ± 3.8 3.4 ± 0.7 1.6 ± 0.4 1.0 ± 1.0 0.0 ± 0.0 48.8 ± 8.2 1.6 ± 1.2 37.6 ± 4.1 11.2 ± 1.3 10.8 ± 2.0 1.3 ± 0.3 1.3 ± 0.5 210.3 ± 10.3
em 347.2 ± 7.3 8.0 ± 1.0 0.3 ± 0.2 48.7 ± 10.8 0.0 ± 0.0 3.4 ± 1.9 22.1 ± 5.5 85.5 ± 6.1 31.2 ± 2.1 1.4 ± 0.7 0.2 ± 0.1 1.3 ± 0.5 549.5 ± 15.7
ee 65.0 ± 3.2 2.2 ± 0.6 2.1 ± 0.5 8.2 ± 5.4 31.5 ± 6.1 0.0 ± 0.0 0.9 ± 0.9 22.8 ± 3.1 6.4 ± 0.9 6.9 ± 1.6 1.3 ± 0.3 1.9 ± 0.6 149.2 ± 9.6

Oli: running at CERN with nTrk >2 cut

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 total
all 499.0 ± 8.8 13.6 ± 1.4 4.0 ± 0.7 58.0 ± 12.1 5.8 ± 2.6 17.2 ± 4.9 18.9 ± 5.1 116.2 ± 7.1 48.6 ± 2.6 16.9 ± 2.5 2.3 ± 0.4 4.2 ± 0.9 804.6 ± 18.6
mm 90.6 ± 3.7 3.4 ± 0.7 1.6 ± 0.4 1.0 ± 1.0 0.0 ± 0.0 13.8 ± 4.5 0.9 ± 0.9 30.7 ± 3.7 11.0 ± 1.2 9.4 ± 1.8 0.9 ± 0.3 1.3 ± 0.5 164.7 ± 7.4
em 344.3 ± 7.3 8.0 ± 1.0 0.3 ± 0.2 48.7 ± 10.8 0.0 ± 0.0 3.4 ± 1.9 18.0 ± 5.1 67.9 ± 5.4 31.2 ± 2.1 1.4 ± 0.7 0.2 ± 0.1 0.9 ± 0.4 524.5 ± 15.3
ee 64.0 ± 3.1 2.2 ± 0.6 2.1 ± 0.5 8.2 ± 5.4 5.8 ± 2.6 0.0 ± 0.0 0.0 ± 0.0 17.5 ± 2.7 6.4 ± 0.9 6.1 ± 1.5 1.2 ± 0.3 1.9 ± 0.6 115.4 ± 7.6

Oli: running at CERN with nTrk > 2 cut and hyp_met > 50

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 total
all 278.3 ± 6.5 8.7 ± 1.1 3.8 ± 0.7 16.5 ± 7.8 2.0 ± 1.4 12.3 ± 4.2 0.9 ± 0.9 87.3 ± 6.1 36.0 ± 2.3 15.1 ± 2.3 2.2 ± 0.4 3.6 ± 0.8 466.8 ± 13.2
mm 74.9 ± 3.4 3.0 ± 0.6 1.6 ± 0.4 0.0 ± 0.0 0.0 ± 0.0 12.3 ± 4.2 0.9 ± 0.9 27.3 ± 3.4 10.2 ± 1.2 8.7 ± 1.8 0.9 ± 0.3 1.3 ± 0.5 141.1 ± 6.9
em 152.0 ± 4.8 3.7 ± 0.7 0.1 ± 0.1 9.3 ± 5.6 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 44.2 ± 4.4 19.8 ± 1.7 1.1 ± 0.6 0.1 ± 0.1 0.6 ± 0.3 231.0 ± 8.8
ee 51.3 ± 2.8 1.9 ± 0.5 2.1 ± 0.5 7.2 ± 5.3 2.0 ± 1.4 0.0 ± 0.0 0.0 ± 0.0 15.8 ± 2.6 6.1 ± 0.9 5.4 ± 1.4 1.2 ± 0.3 1.7 ± 0.6 94.7 ± 7.0

Oli: running at CERN with nTrk > 2 cut and hyp_met > 100

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 total
all 16.7 ± 1.6 0.7 ± 0.3 1.1 ± 0.4 0.0 ± 0.0 0.9 ± 0.9 1.6 ± 1.6 0.0 ± 0.0 14.7 ± 2.5 6.5 ± 1.0 4.7 ± 1.3 1.7 ± 0.4 1.7 ± 0.6 50.3 ± 3.9
mm 4.9 ± 0.9 0.3 ± 0.2 0.3 ± 0.2 0.0 ± 0.0 0.0 ± 0.0 1.6 ± 1.6 0.0 ± 0.0 7.0 ± 1.8 2.5 ± 0.6 1.8 ± 0.8 0.7 ± 0.2 0.9 ± 0.4 20.1 ± 2.8
em 9.7 ± 1.2 0.1 ± 0.1 0.1 ± 0.1 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 6.4 ± 1.7 3.0 ± 0.6 1.1 ± 0.6 0.1 ± 0.1 0.0 ± 0.0 20.5 ± 2.3
ee 2.2 ± 0.6 0.3 ± 0.2 0.7 ± 0.3 0.0 ± 0.0 0.9 ± 0.9 0.0 ± 0.0 0.0 ± 0.0 1.3 ± 0.7 1.0 ± 0.4 1.8 ± 0.8 0.9 ± 0.3 0.8 ± 0.4 9.7 ± 1.7

Oli: running at CERN with nTrk > 2 cut and hyp_met > 200

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 total
all 1.7 ± 0.5 0.0 ± 0.0 0.2 ± 0.2 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.4 ± 0.4 0.4 ± 0.2 1.4 ± 0.7 0.3 ± 0.1 0.6 ± 0.3 5.1 ± 1.1
mm 0.6 ± 0.3 0.0 ± 0.0 0.1 ± 0.1 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.1 ± 0.1 0.6 ± 0.3 1.4 ± 0.5
em 0.9 ± 0.4 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.3 ± 0.2 1.1 ± 0.6 0.0 ± 0.0 0.0 ± 0.0 2.3 ± 0.8
ee 0.2 ± 0.2 0.0 ± 0.0 0.1 ± 0.1 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.4 ± 0.4 0.1 ± 0.1 0.4 ± 0.4 0.2 ± 0.1 0.0 ± 0.0 1.4 ± 0.6

Oli: 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 emu fit, calculate MET cut for 10% background, which results in MET_Cut = (ln ( f(x) ) - p0)/p1 = ( ln(10)-6.225 ) / -0.04945 = ~80 GeV
  • use all fit, calculate MET cut for 10% background, which results in MET_Cut = (ln ( f(x) ) - p0)/p1 = ( ln(10)-6.4 ) / -0.04712 = ~87 GeV

Reduce background to 10%: MET cut of 80 GeV

Without MET cut

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 total
all 499.0 ± 8.8 13.6 ± 1.4 4.0 ± 0.7 58.0 ± 12.1 5.8 ± 2.6 17.2 ± 4.9 18.9 ± 5.1 116.2 ± 7.1 48.6 ± 2.6 16.9 ± 2.5 2.3 ± 0.4 4.2 ± 0.9 804.6 ± 18.6
mm 90.6 ± 3.7 3.4 ± 0.7 1.6 ± 0.4 1.0 ± 1.0 0.0 ± 0.0 13.8 ± 4.5 0.9 ± 0.9 30.7 ± 3.7 11.0 ± 1.2 9.4 ± 1.8 0.9 ± 0.3 1.3 ± 0.5 164.7 ± 7.4
em 344.3 ± 7.3 8.0 ± 1.0 0.3 ± 0.2 48.7 ± 10.8 0.0 ± 0.0 3.4 ± 1.9 18.0 ± 5.1 67.9 ± 5.4 31.2 ± 2.1 1.4 ± 0.7 0.2 ± 0.1 0.9 ± 0.4 524.5 ± 15.3
ee 64.0 ± 3.1 2.2 ± 0.6 2.1 ± 0.5 8.2 ± 5.4 5.8 ± 2.6 0.0 ± 0.0 0.0 ± 0.0 17.5 ± 2.7 6.4 ± 0.9 6.1 ± 1.5 1.2 ± 0.3 1.9 ± 0.6 115.4 ± 7.6

with MET cut of 80 GeV

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 total
all 48.8 ± 2.7 2.3 ± 0.6 1.8 ± 0.4 0.0 ± 0.0 0.9 ± 0.9 1.6 ± 1.6 0.0 ± 0.0 34.9 ± 3.9 12.4 ± 1.3 7.9 ± 1.7 1.9 ± 0.4 1.9 ± 0.6 114.5 ± 5.6
mm 13.7 ± 1.4 0.7 ± 0.3 0.7 ± 0.3 0.0 ± 0.0 0.0 ± 0.0 1.6 ± 1.6 0.0 ± 0.0 12.7 ± 2.4 4.5 ± 0.8 4.0 ± 1.2 0.7 ± 0.2 0.9 ± 0.4 39.4 ± 3.5
em 26.4 ± 2.0 1.1 ± 0.4 0.1 ± 0.1 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 14.6 ± 2.5 5.9 ± 0.9 1.1 ± 0.6 0.1 ± 0.1 0.0 ± 0.0 49.3 ± 3.4
ee 8.8 ± 1.2 0.6 ± 0.3 1.0 ± 0.3 0.0 ± 0.0 0.9 ± 0.9 0.0 ± 0.0 0.0 ± 0.0 7.6 ± 1.8 2.0 ± 0.5 2.9 ± 1.0 1.0 ± 0.3 0.9 ± 0.4 25.7 ± 2.7

Oli: comparison WW selection (left) vs. WW selection + 80 GeV MET cut (right)












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Topic revision: r1 - 10 Nov 2008 - 14:03:22 - OliverGutsche

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