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Overview of results on trigger efficiencies for ttbar CSA07 samples
(Part of the work towards AN note:
Trigger performance for top events: evaluation, validation and monitoring)
J.Cuevas, U.OviedoM.Felcini, UCDP.Lobelle, IFCA
Top quark meeting – 10/04/081
Semileptonic events
• 1 lepton from W pT
gen >10 GeV , ||<2.4
• At least 1 lepton pT>20 GeV ||<2.0 and 2 jets (ET
Corr>20,||<2.4)
Dileptonic events
• 2 leptons from W pT
gen>10 GeV, ||<2.4
• At least 2 leptons pT>20 GeV, pT>15 GeV ||<2.0, opposite charge 2 jets (ET
Corr>20,||<2.4)
Off-line selectionOff-line selection
GeneratorGenerator cuts andcuts andacceptanceacceptance
Trigger path name HLT HLT threshold threshold
(GeV)(GeV)
HLT1MuonNonIso 1616
HLT1MuonIso 1111
HLT1ElectronRelaxed 1717
HLT1Electron 1515
HLT2MuonNonIso 3,33,3
HLT2ElectronRelaxed 12,12
HLTXElectronMuonRelaxed 10,10
HLTXElectronMuon 8,7
HLT1jet 200
efficiencies reportedefficiencies reported
trigtrig based on MC information
trig/offtrig/off relative to the offline selection
Used sample:CSA07 Chowder All EventsCSA07 Chowder All EventsCMSSW 167CMSSW 167(1652813 TTBAR)(1652813 TTBAR)
EVENT SELECTIONEVENT SELECTION
3
Final state bjjbbjjb evbjjbevbjjb bbbb eebebebb eebbbb
Noff/acc171651171651 164626164626 1099710997 92579257 2021420214
off/accoff/acc79.9 79.9 ±0.3±0.3 76.6 76.6 ±0.2±0.2 68.468.4±0.8±0.8 58.6 58.6 ±0.8±0.8 64.2 64.2 ±0.6±0.6
trig/offtrig/off
HLT1MuonNonIso 89.7 89.7 ±0.3±0.3 3.39 3.39 ±0.05±0.05 99 99 ±1±1 3.4 3.4 ±0.2±0.2 89.1 89.1 ±0.9±0.9
HLT1MuonIso 73.3 73.3 ±0.3±0.3 0.11 0.11 ±0.01±0.01 95 95 ±1±1 0.08 0.08 ±0.03±0.03 74.6 74.6 ±0.8±0.8
HLT1ElectronRelaxed 0.48 0.48 ±0.02±0.02 70.4 70.4 ±0.3±0.3 0.57 0.57 ±0.07±0.07 91 91 ±1±1 71.2 71.2 ±0.8±0.8
HLT1Electron 0.48 0.48 ±0.02±0.02 67.0 67.0 ±0.3±0.3 0.55 0.55 ±0.07±0.07 90 90 ±1±1 69.6 69.6 ±0.8±0.8
HLT2MuonNonIso 13.2 13.2 ±0.1±0.1 0.83 0.83 ±0.02±0.02 89 89 ±1±1 0.53 0.53 ±0.08±0.08 11.3 11.3 ±0.2±0.2
HLT2ElectronRelaxed 0.38 0.38 ±0.01±0.01 5.62 5.62 ±0.06±0.06 0.29 0.29 ±0.05±0.05 82 82 ±1±1 4.0 4.0 ±0.1±0.1
HLTXElectronMuonRelaxed
0.97 0.97 ±0.02±0.02 4.48 4.48 ±0.05±0.05 1.0 1.0 ±0.1±0.1 5.6 5.6 ±0.2±0.2 69.2 69.2 ±0.8±0.8
HLTXElectronMuon 0.84 0.84 ±0.02±0.02 0.20 0.20 ±0.01±0.01 1.1 1.1 ±0.1±0.1 0.3 0.3 ±0.05±0.05 53.9 53.9 ±0.6±0.6
HLT1jet 12.1 12.1 ±0.1±0.1 14.4 14.4 ±0.1±0.1 9.7 9.7 ±0.3±0.3 15.5 15.5 ±0.4±0.4 12.1 12.1 ±0.3±0.3
EFFICIENCIES wrt OFFLINE SELECTIONEFFICIENCIES wrt OFFLINE SELECTION
4
tt->bjjb
HLT1MuonNonIso
tt->bb
HLT2MuonNonIso
tt->ebjjb
HLT1ElectronRelaxed
tt->ebeb
HLT2ElectronRelaxed
Off-line based trigger efficiencies vs Off-line based trigger efficiencies vs and pT and pTNormalized to 100pb-1
5
Semileptonic events
• 1 lepton from W pT
gen >10 GeV , ||<2.4
• At least 1 lepton pT>20 GeV ||<2.0, isolated2 jets (ET
Corr>20,||<2.4)
Dileptonic events
• 2 leptons from W pT>10 GeV ||<2.4
• At least 2 leptons pT>20 GeV, ||<2.0, opposite charge, isolated 2 jets (ET
Corr>20,||<2.4)
Off-line selectionOff-line selection
GeneratorGenerator cutscuts
• isolation cutsisolation cuts
MuonsMuons
Track isolation (POG) SumpT of tracks in dR=0.3 Calo Isolation (POG) Sum of energy deposits in HCal +ECal +HO in dR=0.3
ElectronsElectrons
Track isolation (TQAF) SumpT of tracks in dR=0.3 – pT of electron trackCalo isolation (TQAF) SumET of calotowers in dR=0.3 – electron. caloEnergy()
Quality cutsQuality cuts HOverE<0.05 , 0.8<EOverP<3
TrackIso<3 , CaloIso<5
TrackIso<3 , CaloIso<6
Used sample:CSA07 Chowder All EventsCSA07 Chowder All EventsCMSSW 167CMSSW 167( 619306 TTBAR)( 619306 TTBAR)
6
Final state bjjbbjjb evbjjbevbjjb bbbb eebebebb eebbbb
Ngen92144 91801 7695 7653 15361
acceptancacceptance 87.787.7±0.4±0.4 87.8 87.8 ±0.4±0.4 78 78 ±1±1 78 78 ±1±1 77.0 77.0 ±0.9±0.9
off/acc69.069.0±0.4±0.4 53.5 53.5 ±0.3±0.3 48 48 ±1±1 31.1 31.1 ±0.8±0.8 38.7 38.7 ±0.7±0.7
trig/offtrig/off
HLT1MuonNonIso 91.6 91.6 ±0.6±0.6 3.37 3.37 ±0.09±0.09 100 100 ±3±3 3.3 3.3 ±0.4±0.4 91 91 ±2±2
HLT1MuonIso 82.0 82.0 ±0.5±0.5 0.11 0.11 ±0.02±0.02 98 98 ±3±3 0.11 0.11 ±0.08±0.08
83 83 ±2±2
HLT1ElectronRelaxed 0.45 0.45 ±0.03±0.03 80.2 80.2 ±0.6±0.6 0.5 0.5 ±0.1±0.1 97 97 ±3±3 81 81 ±2±2
HLT1Electron 0.47 0.47 ±0.03±0.03 76.6 76.6 ±0.6±0.6 0.6 0.6 ±0.1±0.1 96 96 ±3±3 77 77 ±2±2
HLT2MuonNonIso 12.9 12.9 ±0.2±0.2 0.81 0.81 ±0.04±0.04 92 92 ±2±2 0.4 0.4 ±0.1±0.1 11.5 11.5 ±0.5±0.5
HLT2ElectronRelaxed 0.36 0.36 ±0.02±0.02 4.8 4.8 ±0.1±0.1 0.21 0.21 ±0.08±0.08 91 91 ±3±3 3.4 3.4 ±0.3±0.3
HLTXElectronMuonRelaxed
0.97 0.97 ±0.04±0.04 5.0 5.0 ±0.1±0.1 0.9 0.9 ±0.2±0.2 5.9 5.9 ±0.6±0.6 77 77 ±2±2
HLTXElectronMuon 0.97 0.97 ±0.04±0.04 0.24 0.24 ±0.02±0.02 1.1 1.1 ±0.2±0.2 0.4 0.4 ±0.1±0.1 65 65 ±1±1
HLT1jet 10.6 10.6 ±0.1±0.1 11.9 11.9 ±0.2±0.2 7.9 7.9 ±0.5±0.5 12.6 12.6 ±0.9±0.9 9.8 9.8 ±0.5±0.5
EFFICIENCIES wrt OFFLINE SELECTION (Requiring EFFICIENCIES wrt OFFLINE SELECTION (Requiring isolated leptons)isolated leptons)
7
tt->ebjjb
HLT1ElectronRelaxed
New selection withNew selection withIsolation cutsIsolation cuts
Usual selection
Off-line based trigger efficienciesOff-line based trigger efficiencies Normalized to 100pb-1
8
HLT1MuonNonIsoHLT1MuonNonIso 16x 17x 18x
MinPt 16.0 16.0 16.0
Nsigma_Pt 2.2 2.2 2.2
MaxDr 0.02 0.02 2.0
HLT1ElectronRelaxedHLT1ElectronRelaxed 16x 17x 18x
MinEt 18.0 18.0 18.0
HCal Isol Barrel ||<1.5 Endcap ||>1.5
3.03.0
3.0 3.0
3.03.0
E/p barrel endcap
1.5 2.45
1/E-1/P<999.03 <999.03
1/E-1/P<999.03 <999.03
Track Isol pt 0.06 0.06 0.06
HLT2MuonNonIsoHLT2MuonNonIso 16x 17x 18x
MinPt 3.0 3.0 3.0
Nsigma_Pt 2.2 2.2 2.2
MaxDr 0.02 0.02 2.0
FILTERS APPLIED IN NON ISOLATED PATHSFILTERS APPLIED IN NON ISOLATED PATHS
9
HLT2ElectronRelaxedHLT2ElectronRelaxed 16x 17x 18x
MinEt 12.0 12.0 12.0
HCal Isol Barrel ||<1.5 Endcap ||>1.5
9.0 9.0
9.0 9.0
9.0 9.0
E/p barrel endcap
15000 24500
15000 24500
15000 24500
Track Isol pt 0.4 0.4 0.4
HLTXElectronMuonRelaxedHLTXElectronMuonRelaxed 16x 17x 18x
MinPt 10.0 10.0 10.0
Nsigma_Pt 2.2 2.2 2.2
MaxDr 0.02 0.02 2.0
MinEt 10.0 10.0 10.0
HCal Isol Barrel ||<1.5 Endcap ||>1.5
3.0 3.0
3.0 3.0
3.0 3.0
E/p barrel endcap
1.5 2.45
1.5 2.45
1.5 2.45
Track Isol pt 0.06 0.06 0.06
Muon
Electron
10
Semileptonic events
• 1 lepton from W pT
gen >10 GeV , ||<2.4
• At least 1 lepton pT>20 GeV ,||<2.0 2 jets (ET
Raw>13,||<2.4)
Dileptonic events
• 2 leptons from W pgen
T>10 GeV ||<2.4
•At least 2 leptons pT>20 GeV, pT>15 GeV ,||<2.0, opposite charge 2 jets (ET
Raw>13,||<2.4)
Off-line selectionOff-line selection
GeneratorGenerator cutscuts
efficiencies reported
trigtrig based on MC information
trig/offtrig/off relative to the offline selection
Trigger path name HLT HLT threshold threshold
(GeV)(GeV)
HLT1MuonNonIso 1616
HLT1MuonIso 1111
HLT1ElectronRelaxed 1717
HLT1Electron 1515
HLT2MuonNonIso 3,33,3
HLT2ElectronRelaxed 12,12
HLTXElectronMuonRelaxed 10,10
HLTXElectronMuon 8,7
HLT1jet 200
Used sample:
RelValTTbarRelValTTbar CMSSW 183CMSSW 183( 25100 events )( 25100 events )
EVENT SELECTIONEVENT SELECTION
12
Final state bjjbbjjb evbjjbevbjjb bbbb eebebebb eebbbb
Noff/acc 2570 2527 145 147 307
off/accoff/acc 79±279±2 77±277±2 58±658±6 66±766±7 64±564±5
trig/offtrig/off
HLT1MuonNonIso 91±391±3 7.0±0.5±0.5 98±12±12 3±1±1 87±7±7
HLT1MuonIso 72±2±2 0.08±0.06±0.06 92±11±11 0 70±6±6
HLT1ElectronRelaxed 1.3±0.2±0.2 83±283±2 1±1±1 95±11±11 86±7±7
HLT1Electron 0.9±0.2±0.2 77.4±2±2 0.7±0.7±0.7 94±11±11 82±7±7
HLT2MuonNonIso 24±1±1 3.5±0.4±0.4 84±1084±10 1±1±1 22±3±3
HLT2ElectronRelaxed 0.4±0.1±0.1 6.0±0.5±0.5 0 82±1082±10 4±1±1
HLTXElectronMuonRelaxed
1.2±0.2±0.2 10.0±0.7±0.7 1±1±1 7±2±2 71±671±6
HLTXElectronMuon 1.0±0.2±0.2 0.4±0.1±0.1 1±1±1 0.7±0.7±0.7 53±553±5
HLT1jet 14.4±0.8±0.8 14.4±0.8±0.8 13±3±3 15±3±3 12±2±2
EFFICIENCIES wrt OFFLINE SELECTIONEFFICIENCIES wrt OFFLINE SELECTION
13
tt->bjjb
HLT1MuonNonIso
tt->ebjjb
HLT1ElectronRelaxed
Off-line basedOff-line based trigger efficienciestrigger efficiencies
14
Semileptonic events
• 1 lepton from W pT
gen >10 GeV , ||<2.4
• At least 1 lepton pT>20 GeV ,||<2.0, isolated 2 jets (ETRaw>13 GeV,||<2.4)
Dileptonic events
• 2 leptons from W pT>10 GeV ||<2.4
• At least 2 leptons pT>20 GeV,
pT>15 GeV, ||<2.0, opposite charge, isolated 2 jets (ETRaw>13 GeV ,||<2.4) Off-line selectionOff-line selection
GeneratorGenerator cutscuts
MuonsMuons
Track isolation (POG) SumpT of tracks in dR=0.3 Calo Isolation (POG) Sum of energy deposits in HCal +ECal +HO in dR=0.3
ElectronsElectrons
Track isolation SumpT of tracks in dR=0.3 – pT of electron trackCalo isolation SumET of calotowers in dR=0.3 – electron. caloEnergy()
Quality cuts HOverE<0.05 , 0.8<EOverP<3
TrackIso<3 , CaloIso<5
TrackIso<3 , CaloIso<6
Used sample: RelValTTbarRelValTTbar CMSSW 183CMSSW 183( 25100 events )( 25100 events )
• isolation cutsisolation cuts
15
Final state bjjbbjjb evbjjbevbjjb bbbb eebebebb eebbbb
Ngen3673 3678 312 288 601
acceptancacceptance 8888±2±2 8989±2±2 80 80 ±7±7 78 78 ±7±7 80 80 ±5±5
off/accoff/acc6868±2±2 58 58 ±2±2 49 49 ±6±6 41 41 ±5±5 47 47 ±4±4
trig/offtrig/off
HLT1MuonNonIso 9191±3±3 6.7 ±0.6±0.6 98±13±13 3 ±2±2 85 ±8±8
HLT1MuonIso 81±3±3 0.05 ±0.05±0.05 94 ±12±12 - 77±8±8
HLT1ElectronRelaxed 1.3±0.2±0.2 93 93 ±3±3 0.8 ±0.8±0.8 100 ±15±15 90 ±9±9
HLT1Electron 0.9±0.2±0.2 88 ±3±3 - 100 ±15±15 90 ±9±9
HLT2MuonNonIso 22±1±1 3.6 ±0.4±0.4 83 83 ±11±11 2 ±2±2 25 ±4±4
HLT2ElectronRelaxed 0.4±0.1±0.1 5.1 ±0.5±0.5 - 92 92 ±14±14 4±1±1
HLTXElectronMuonRelaxed
1.2±0.2±0.2 11.3 ±0.8±0.8 0.8 ±0.8±0.8 10 ±3±3 76 76 ±8±8
HLTXElectronMuon 1.0±0.2±0.2 0.4 ±0.1±0.1 2±1±1 1 ±1±1 63 63 ±7±7
HLT1jet 12.9±0.8±0.8 12.2 ±0.8±0.8 12 ±3±3 9 ±3±3 10 ±2±2
EFFICIENCIES wrt OFFLINE SELECTION (Requiring EFFICIENCIES wrt OFFLINE SELECTION (Requiring isolated leptons)isolated leptons)
16
tt->bjjb
HLT1MuonNonIso
tt->ebjjb
HLT1ElectronRelaxed
Off-line basedOff-line based trigger efficienciestrigger efficiencies
17
1_6_71_6_7
97.6% of the offline selected electrons (after applying isolation97.6% of the offline selected electrons (after applying isolation and quality cuts) in eand quality cuts) in ebjjb events are matched to the bjjb events are matched to the generated from W (dR<0.2generated from W (dR<0.2))
1_8_31_8_3
99.6% of the offline selected electrons (after applying isolation99.6% of the offline selected electrons (after applying isolation and quality cuts) in eand quality cuts) in ebjjb events are matched to the bjjb events are matched to the generated from W (alpha<0.15generated from W (alpha<0.15))
<0.15 99.6%
18
Final state bjjbbjjb evbjjbevbjjb bbbb eebebebb eebbbb
Noff/acc 2712 2639 129 165 323
off/acc 79±279±2 79±279±2 58±658±6 68±768±7 68±568±5
trig/offtrig/off
HLT1MuonNonIso 93 93 ±3±3 7.5 ±0.5±0.5 98 ±12 8 ±2±2 91±7
HLT1MuonIso 73 ±2±2 0.2 ±0.1±0.1 92 ±12 0 76 ±6
HLT1ElectronRelaxed 0.5 ±0.1±0.1 89 89 ±2±2 2 ±1 99 ±11±11 87 ±7
HLT1Electron 0.3 ±0.1±0.1 82 ±2±2 2 ±1 97 ±11±11 83 ±7
HLT2MuonNonIso 19.4 ±0.9±0.9 1.1 ±0.2±0.2 95 95 ±12 0.6 ±0.6±0.6 17 ±2
HLT2ElectronRelaxed 0.1 ±0.1±0.1 4.0 ±0.4±0.4 0 90 90 ±10±10 4 ±1
HLTXElectronMuonRelaxed
0.4 ±0.1±0.1 9.3 ±0.6±0.6 2±1 11 ±3±3 70 70 ±6
HLTXElectronMuon 0.5 ±0.1±0.1 0.2 ±0.1±0.1 2 ±1 0 53 53 ±5
HLT1jet 11.9 ±0.7±0.7 16.6 ±0.8±0.8 15 ±4 22 ±4±4 11 ±2
RelValTTbar FASTSIM 1_8_3
EFFICIENCIES wrt OFFLINE SELECTION EFFICIENCIES wrt OFFLINE SELECTION
19
SUMMARYSUMMARY
21
• Trigger efficiencies for the most relevant pathsTrigger efficiencies for the most relevant paths in top quark physics have been estimated in in top quark physics have been estimated in CSA07 samples CSA07 samples
• The evolution of this estimations is studied for The evolution of this estimations is studied for different CMSSW Versions and RelVal Samplesdifferent CMSSW Versions and RelVal Samples and regularly reported to TSG.and regularly reported to TSG.
• Efficiencies for the Fastsim and Fullsim samplesEfficiencies for the Fastsim and Fullsim samples have been compared and found also in reasonablehave been compared and found also in reasonable agreement starting with 1_8_3 Samples.agreement starting with 1_8_3 Samples.
Final state bjjbbjjb evbjjbevbjjb bbbb eebebebb eebbbb
Ngen245164 244834 20572 20299 40852
Nacc/gen214848 214975 16073 15792 31465
acceptancacceptance 87.687.6±0.3±0.3 87.887.8±0.3±0.3 78.1 78.1 ±0.8±0.8 77.8 77.8 ±0.8±0.8 77.077.0±0.6±0.6
trigtrig
HLT1MuonNonIso 79.579.5±0.3±0.3 3.31 ±0.04±0.04 97 ±1±1 3.2 ±0.1±0.1 79.6 ±0.7±0.7
HLT1MuonIso 67.7 ±0.2±0.2 0.11 ±0.01±0.01 93 ±1±1 0.06±0.02±0.02 69.2 ±0.6±0.6
HLT1ElectronRelaxed 0.47 ±0.01±0.01 59.6 59.6 ±0.2±0.2 0.55 ±0.06±0.06 84 ±1±1 60.2 ±0.6±0.6
HLT1Electron 0.47 ±0.01±0.01 58.4 ±0.2±0.2 0.53 ±0.06±0.06 83 ±1±1 59.1 ±0.6±0.6
HLT2MuonNonIso 12.2 ±0.1±0.1 0.80 ±0.02±0.02 85 85 ±1±1 0.52 ±0.06±0.06 10.8 ±0.2±0.2
HLT2ElectronRelaxed 0.37 ±0.01±0.01 4.85 ±0.05±0.05 0.24 ±0.04±0.04 68.0 68.0 ±0.8±0.8 3.7 ±0.1±0.1
HLTXElectronMuonRelaxed
0.89 ±0.02±0.02 3.97 ±0.04±0.04 0.94 ±0.08±0.08 5.0 ±0.2±0.2 57.1 57.1 ±0.5±0.5
HLTXElectronMuon 0.77 ±0.02±0.02 0.18 ±0.01±0.01 1.03 ±0.08±0.08 0.23 ±0.04±0.04 44.9 ±0.4±0.4
HLT1jet 11.4 ±0.1±0.1 13.6 ±0.1±0.1 8.8 ±0.2±0.2 14.9 ±0.3±0.3 11.5 ±0.2±0.2
EFFICIENCIES wrt EVENTS WITHIN ACCEPTANCEEFFICIENCIES wrt EVENTS WITHIN ACCEPTANCE1_6_71_6_7
23
Final state bjjbbjjb evbjjbevbjjb bbbb eebebebb eebbbb
Ngen 3673 3678 312 288 601
Nacc/gen 3247 3275 249 224 479
acceptancacceptance 88±288±2 89±289±2 80±780±7 78±778±7 80±580±5
trigtrig
HLT1MuonNonIso 81±281±2 7.0±0.5±0.5 96±9±9 4±1±1 81±5±5
HLT1MuonIso 67±2±2 0.1±0.1±0.1 89±8±8 0 67±5±5
HLT1ElectronRelaxed 1.1±0.2±0.2 72±272±2 0.8±0.6±0.6 93±9±9 75±5±5
HLT1Electron 0.8±0.2±0.2 68±2±2 1.2±0.7±0.7 91±9±9 72±5±5
HLT2MuonNonIso 21.8±0.9±0.9 3.4±0.3±0.3 85±885±8 1.8±0.9±0.9 21±2±2
HLT2ElectronRelaxed 0.3±0.1±0.1 5.3±0.4±0.4 0.4±0.4±0.4 71±771±7 3.1±0.8±0.8
HLTXElectronMuonRelaxed 1.0±0.2±0.2 8.8±0.5±0.5 2.0±0.9±0.9 7±2±2 58±458±4
HLTXElectronMuon 0.9±0.2±0.2 0.3±0.1±0.1 2±1±1 0.4±0.4±0.4 44±4±4
HLT1jet 13.0±0.7±0.7 14.0±0.7±0.7 12±2±2 10±2±2 12±2±2
EFFICIENCIES wrt EVENTS WITHIN ACCEPTANCEEFFICIENCIES wrt EVENTS WITHIN ACCEPTANCE1_8_31_8_3
24
Final state bjjbbjjb evbjjbevbjjb bbbb eebebebb eebbbb
Ngen 3934 3816 280 319 587
Nacc/gen 3440 3342 222 244 473
acceptancacceptance 87±287±2 88±288±2 79±779±7 76±676±6 81±581±5
trigtrig
HLT1MuonNonIso 8383±2±2 7.3 ±0.5±0.5 97±9 9 ±2±2 83 ±6±6
HLT1MuonIso 68 ±2±2 0.2 ±0.1±0.1 90 ±9 0 72 ±5±5
HLT1ElectronRelaxed 0.5 ±0.1±0.1 78 78 ±2±2 2±0.9 94 ±9±9 79 ±5±5
HLT1Electron 0.4 ±0.1±0.1 75 ±2±2 1.4 ±0.8 91 ±9±9 76 ±5±5
HLT2MuonNonIso 18.1 ±0.8±0.8 1.0 ±0.2±0.2 92 92 ±9 0.8 ±0.6±0.6 17 ±2±2
HLT2ElectronRelaxed 0.06 ±0.04±0.04 3.4 ±0.3±0.3 0 77 77 ±7±7 3.6 ±0.9±0.9
HLTXElectronMuonRelaxed
0.4 ±0.1±0.1 8.3 ±0.5±0.5 1.4 ±0.8 10 ±2±2 60 60 ±4±4
HLTXElectronMuon 0.5 ±0.1±0.1 0.1 ±0.1±0.1 2 ±1 0 46 ±4±4
HLT1jet 11.0 ±0.6±0.6 15.4 ±0.7±0.7 11 ±2 18 ±3±3 11 ±2±2
RelValTTbar FASTSIM 1_8_3 ( 26000 events)
EFFICIENCIES wrt EVENTS WITHIN ACCEPTANCEEFFICIENCIES wrt EVENTS WITHIN ACCEPTANCE
25