Difference: OliverGutscheDSGBVeto ( vs. 1)

Revision 113 Nov 2008 - Main.OliverGutsche

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META TOPICPARENT name="OliverGutsche"

Investigate soft muon B veto influence

  • BaseLine cuts
    • no Z vetos
  • investigate influence of soft muon B veto and compare reduction in Sm background and LM? signals

BaseLine

  • no B muon veto

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 SM total
all 904.1 ± 11.8 313.6 ± 6.6 147.1 ± 4.1 113.0 ± 14.3 1694.2 ± 40.0 2861.8 ± 52.4 73.5 ± 8.8 10890.3 ± 69.3 950.4 ± 11.6 884.3 ± 17.9 89.8 ± 2.6 434.9 ± 9.1 17948.0 ± 98.8
mm 203.8 ± 5.6 148.2 ± 4.5 78.4 ± 3.0 4.5 ± 2.3 0.0 ± 0.0 2826.9 ± 52.0 11.5 ± 3.2 2878.9 ± 35.7 244.2 ± 5.9 434.6 ± 12.5 37.4 ± 1.7 187.9 ± 6.0 6396.3 ± 63.9
em 564.1 ± 9.3 80.2 ± 3.3 19.2 ± 1.5 90.0 ± 12.7 0.0 ± 0.0 34.8 ± 6.6 57.2 ± 7.9 6223.6 ± 52.4 549.6 ± 8.8 171.7 ± 7.9 32.2 ± 1.5 123.7 ± 4.8 7618.7 ± 56.5
ee 136.2 ± 4.6 85.3 ± 3.4 49.5 ± 2.4 18.5 ± 6.3 1694.2 ± 40.0 0.0 ± 0.0 4.9 ± 2.0 1787.8 ± 28.0 156.6 ± 4.7 278.0 ± 10.0 20.2 ± 1.2 123.3 ± 4.8 3932.9 ± 49.9

  • B veto with pt cut: reject events which have additional muons with pt >= 20 GeV in the event (apart from dilepton candidate)

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 SM total
all 886.4 ± 11.7 287.3 ± 6.3 138.0 ± 3.9 110.9 ± 14.3 1553.4 ± 38.3 2665.7 ± 50.6 70.3 ± 8.6 8586.4 ± 61.5 808.4 ± 10.7 702.1 ± 15.9 67.9 ± 2.2 346.1 ± 8.1 15106.9 ± 91.7
mm 200.0 ± 5.5 133.3 ± 4.3 73.5 ± 2.9 4.5 ± 2.3 0.0 ± 0.0 2634.1 ± 50.2 10.7 ± 3.1 2263.6 ± 31.6 209.8 ± 5.4 343.7 ± 11.1 29.8 ± 1.5 148.2 ± 5.3 5529.6 ± 60.2
em 552.6 ± 9.2 75.5 ± 3.2 18.8 ± 1.5 88.9 ± 12.6 0.0 ± 0.0 31.5 ± 6.3 55.4 ± 7.8 4913.4 ± 46.6 464.2 ± 8.1 129.1 ± 6.8 23.2 ± 1.3 99.7 ± 4.3 6200.3 ± 50.9
ee 133.9 ± 4.5 78.5 ± 3.3 45.8 ± 2.3 17.4 ± 6.3 1553.4 ± 38.3 0.0 ± 0.0 4.2 ± 1.9 1409.4 ± 24.8 134.4 ± 4.4 229.4 ± 9.1 14.9 ± 1.1 98.2 ± 4.3 3377.0 ± 46.7

  • B veto without pt cut: reject events which have additional muons in the event (apart from dilepton candidate)

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 SM total
all 885.5 ± 11.7 192.0 ± 5.1 105.3 ± 3.4 110.9 ± 14.3 1530.4 ± 38.1 2603.3 ± 50.0 70.3 ± 8.6 7911.9 ± 59.1 776.3 ± 10.5 553.2 ± 14.1 46.5 ± 1.9 245.7 ± 6.8 14185.8 ± 89.4
mm 199.8 ± 5.5 81.1 ± 3.3 61.1 ± 2.6 4.5 ± 2.3 0.0 ± 0.0 2595.6 ± 49.9 10.7 ± 3.1 2088.9 ± 30.4 201.3 ± 5.3 273.4 ± 9.9 20.4 ± 1.2 103.9 ± 4.4 5243.1 ± 59.2
em 551.9 ± 9.2 46.7 ± 2.5 3.1 ± 0.6 88.9 ± 12.6 0.0 ± 0.0 7.7 ± 2.8 55.4 ± 7.8 4523.5 ± 44.7 444.9 ± 7.9 84.7 ± 5.5 15.1 ± 1.1 67.2 ± 3.6 5722.3 ± 48.8
ee 133.8 ± 4.5 64.2 ± 3.0 41.1 ± 2.1 17.4 ± 6.3 1530.4 ± 38.1 0.0 ± 0.0 4.2 ± 1.9 1299.5 ± 23.8 130.0 ± 4.3 195.1 ± 8.4 11.0 ± 0.9 74.6 ± 3.8 3220.5 ± 46.0

  • reduction of SM background and LM? samples for all dilepton combinations

ALL dilepton final states SM Reduction LM1 Reduction LM2 Reduction LM4 Reduction
no B veto 17948.00 0.00 884.30 0.00 89.80 0.00 434.90 0.00
B veto with pt cut 15106.90 0.16 702.10 0.21 67.90 0.24 346.10 0.20
B veto without pt cut 14185.80 0.21 553.20 0.37 46.50 0.48 245.70 0.44

MET 10

  • no B muon veto

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 SM total
all 41.0 ± 2.5 36.8 ± 2.3 25.1 ± 1.7 1.1 ± 1.1 15.0 ± 3.6 34.0 ± 5.7 2.7 ± 1.4 1183.2 ± 23.0 91.3 ± 3.6 707.9 ± 16.0 76.9 ± 2.4 337.1 ± 8.0 1430.2 ± 24.6
mm 14.9 ± 1.5 20.7 ± 1.7 15.2 ± 1.3 0.0 ± 0.0 0.0 ± 0.0 34.0 ± 5.7 1.3 ± 0.9 377.6 ± 13.0 28.5 ± 2.0 350.9 ± 11.2 32.1 ± 1.5 149.2 ± 5.3 492.3 ± 14.6
em 19.0 ± 1.7 4.7 ± 0.8 1.2 ± 0.4 1.1 ± 1.1 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 575.0 ± 16.1 46.5 ± 2.6 132.0 ± 6.9 27.8 ± 1.4 92.5 ± 4.2 647.5 ± 16.4
ee 7.1 ± 1.0 11.4 ± 1.3 8.7 ± 1.0 0.0 ± 0.0 15.0 ± 3.6 0.0 ± 0.0 1.4 ± 1.0 230.6 ± 10.1 16.2 ± 1.5 225.0 ± 9.0 16.9 ± 1.1 95.4 ± 4.2 290.4 ± 11.1

  • B veto with pt cut: reject events which have additional muons with pt >= 20 GeV in the event (apart from dilepton candidate)

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 SM total
all 39.3 ± 2.5 33.9 ± 2.2 24.1 ± 1.6 1.1 ± 1.1 11.8 ± 3.3 32.4 ± 5.6 1.3 ± 0.9 915.6 ± 20.3 78.8 ± 3.3 558.2 ± 14.2 57.4 ± 2.1 266.8 ± 7.1 1138.3 ± 21.9
mm 14.3 ± 1.5 18.7 ± 1.6 14.6 ± 1.3 0.0 ± 0.0 0.0 ± 0.0 32.4 ± 5.6 0.6 ± 0.6 290.6 ± 11.4 24.0 ± 1.8 274.8 ± 10.0 25.2 ± 1.4 117.5 ± 4.7 395.3 ± 13.1
em 18.3 ± 1.7 4.3 ± 0.8 1.2 ± 0.4 1.1 ± 1.1 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 445.9 ± 14.2 40.3 ± 2.4 98.5 ± 6.0 19.7 ± 1.2 74.8 ± 3.8 511.0 ± 14.5
ee 6.8 ± 1.0 10.9 ± 1.2 8.2 ± 1.0 0.0 ± 0.0 11.8 ± 3.3 0.0 ± 0.0 0.7 ± 0.7 179.1 ± 8.9 14.6 ± 1.4 185.0 ± 8.2 12.4 ± 1.0 74.6 ± 3.8 232.0 ± 9.8

  • B veto without pt cut: reject events which have additional muons in the event (apart from dilepton candidate)

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 SM total
all 39.2 ± 2.5 19.3 ± 1.6 20.6 ± 1.5 1.1 ± 1.1 10.9 ± 3.2 29.1 ± 5.3 1.3 ± 0.9 810.9 ± 19.1 74.6 ± 3.2 437.1 ± 12.6 39.0 ± 1.7 189.4 ± 6.0 1006.9 ± 20.6
mm 14.3 ± 1.5 9.6 ± 1.2 13.0 ± 1.2 0.0 ± 0.0 0.0 ± 0.0 29.1 ± 5.3 0.6 ± 0.6 257.8 ± 10.8 22.6 ± 1.8 214.9 ± 8.8 16.6 ± 1.1 82.9 ± 4.0 347.1 ± 12.4
em 18.1 ± 1.7 2.5 ± 0.6 0.2 ± 0.2 1.1 ± 1.1 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 395.0 ± 13.3 38.0 ± 2.3 64.9 ± 4.8 13.3 ± 1.0 49.3 ± 3.1 454.9 ± 13.7
ee 6.8 ± 1.0 7.2 ± 1.0 7.3 ± 0.9 0.0 ± 0.0 10.9 ± 3.2 0.0 ± 0.0 0.7 ± 0.7 158.0 ± 8.4 14.0 ± 1.4 157.2 ± 7.5 9.1 ± 0.8 57.2 ± 3.3 204.8 ± 9.3

  • reduction of SM background and LM? samples for all dilepton combinations

ALL dilepton final states SM Reduction LM1 Reduction LM2 Reduction LM4 Reduction
no B veto 1430.20 0.00 707.90 0.00 76.90 0.00 337.10 0.00
B veto with pt cut 1138.30 0.20 558.20 0.21 57.40 0.25 266.80 0.21
B veto without pt cut 1006.90 0.30 437.10 0.38 39.00 0.49 189.40 0.44

MET 1

  • no B muon veto

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 SM total
all 11.7 ± 1.3 9.5 ± 1.1 8.0 ± 0.9 0.0 ± 0.0 2.1 ± 1.3 7.7 ± 2.6 0.6 ± 0.6 194.4 ± 9.4 10.0 ± 1.2 504.9 ± 13.5 58.3 ± 2.1 226.4 ± 6.5 244.0 ± 10.1
mm 4.5 ± 0.8 5.2 ± 0.8 4.6 ± 0.7 0.0 ± 0.0 0.0 ± 0.0 7.7 ± 2.6 0.6 ± 0.6 72.6 ± 5.7 3.1 ± 0.7 252.8 ± 9.5 24.0 ± 1.3 101.8 ± 4.4 98.4 ± 6.5
em 5.4 ± 0.9 1.0 ± 0.4 0.4 ± 0.2 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 83.7 ± 6.2 5.9 ± 0.9 92.7 ± 5.8 21.9 ± 1.3 63.8 ± 3.5 96.5 ± 6.3
ee 1.8 ± 0.5 3.3 ± 0.7 2.9 ± 0.6 0.0 ± 0.0 2.1 ± 1.3 0.0 ± 0.0 0.0 ± 0.0 38.0 ± 4.1 1.0 ± 0.4 159.4 ± 7.6 12.4 ± 1.0 60.8 ± 3.4 49.2 ± 4.5

  • B veto with pt cut: reject events which have additional muons with pt >= 20 GeV in the event (apart from dilepton candidate)

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 SM total
all 10.8 ± 1.3 9.0 ± 1.1 7.6 ± 0.9 0.0 ± 0.0 1.6 ± 1.2 7.7 ± 2.6 0.6 ± 0.6 145.6 ± 8.1 8.3 ± 1.1 403.9 ± 12.1 43.1 ± 1.8 181.1 ± 5.8 191.3 ± 8.9
mm 4.1 ± 0.8 4.8 ± 0.8 4.5 ± 0.7 0.0 ± 0.0 0.0 ± 0.0 7.7 ± 2.6 0.6 ± 0.6 54.9 ± 5.0 2.4 ± 0.6 200.1 ± 8.5 19.2 ± 1.2 80.1 ± 3.9 79.1 ± 5.9
em 5.1 ± 0.9 1.0 ± 0.4 0.4 ± 0.2 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 60.6 ± 5.3 4.9 ± 0.8 72.1 ± 5.1 15.1 ± 1.1 53.4 ± 3.2 72.0 ± 5.4
ee 1.5 ± 0.5 3.2 ± 0.7 2.7 ± 0.6 0.0 ± 0.0 1.6 ± 1.2 0.0 ± 0.0 0.0 ± 0.0 30.1 ± 3.7 1.0 ± 0.4 131.6 ± 6.9 8.8 ± 0.8 47.6 ± 3.0 40.2 ± 4.0

  • B veto without pt cut: reject events which have additional muons in the event (apart from dilepton candidate)

  ww wz zz wjets dyee dymm dytt ttbar tw LM1 LM2 LM4 SM total
all 10.6 ± 1.3 5.0 ± 0.8 6.9 ± 0.9 0.0 ± 0.0 1.6 ± 1.2 7.7 ± 2.6 0.6 ± 0.6 125.1 ± 7.5 8.1 ± 1.1 315.2 ± 10.7 29.8 ± 1.5 131.0 ± 5.0 165.5 ± 8.3
mm 4.1 ± 0.8 2.1 ± 0.5 4.3 ± 0.7 0.0 ± 0.0 0.0 ± 0.0 7.7 ± 2.6 0.6 ± 0.6 48.0 ± 4.7 2.3 ± 0.6 157.6 ± 7.5 12.7 ± 1.0 58.2 ± 3.3 69.1 ± 5.6
em 4.9 ± 0.9 0.7 ± 0.3 0.1 ± 0.1 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 0.0 ± 0.0 51.0 ± 4.8 4.9 ± 0.8 47.6 ± 4.1 10.7 ± 0.9 35.5 ± 2.6 61.6 ± 5.0
ee 1.5 ± 0.5 2.2 ± 0.6 2.5 ± 0.5 0.0 ± 0.0 1.6 ± 1.2 0.0 ± 0.0 0.0 ± 0.0 26.1 ± 3.4 0.8 ± 0.3 110.0 ± 6.3 6.4 ± 0.7 37.4 ± 2.7 34.8 ± 3.8

  • reduction of SM background and LM? samples for all dilepton combinations

ALL dilepton final states SM Reduction LM1 Reduction LM2 Reduction LM4 Reduction
no B veto 244.00 0.00 504.90 0.00 58.30 0.00 226.40 0.00
B veto with pt cut 191.30 0.22 403.90 0.20 43.10 0.26 181.10 0.20
B veto without pt cut 165.50 0.32 315.20 0.38 29.80 0.49 131.00 0.42

Result

  • when applying the soft muon B veto, the reduction in SM background is less than the reduction in LM? samples
  • from now on, we will not apply the soft muon B veto in any form and will look into other methods to reduce the ttbar background
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