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MC-data Comparison Study
for Semi-Leptonic Final State
Shunsuke Honda (U Tsukuba, JAPAN)
Koji Nakamura (KEK), Yuji Enari (U Tokyo), Yasuyuki Horii (Nagoya U)
2015/7/24 tthbb meeting 1
Technical Information
FRAMEWORK
AnalysisTop-2-3-20 + TTHbbLeptonic-02-03-15-01
ttbar nonallhad DAOD-TOPQ1 mc15_13TeV.410000.PowhegPythiaEvtGen_P2012_ttbar_hdamp172p5_nonallhad.merge.DAOD_TOPQ1.e3698_s2608_s2183_r6630_r6264_p2352
XS=696 pb x 1.19(k-factor) x 0.543(filter-efii.)
Other-BG: sg-top, Wjets, Zjets DAOD-TOPQ1 sg-top: Wt-inclusive, Wt-dilepton, schannel for top and anti-top respectively
Wjets (POWHEGPYTHIA) : Wminus-enu/munu/taunu, Wplus-enu/munu/taunu
Zjets (POWHEGPYTHIA) : Zee/mumu/tautau
Data15_13TeV DAOD-TOPQ1 periodA=267073,267167, 267638,267639
periodB=267358,267359,267360,267367,267385,267599
periodC=270806,270953,271048,271298,271421,271516,271595
tthbb meeting 22015/7/24
~78.7 pb-1
Event Selection
INITIAL
GRL / GOODCALO
EL(MU)_N >=1
EL(MU)_N ==1
MU(EL)_N ==0
JET CLEAN LOOSEBAD
SF-estimation of QCD-BG(fake-leptons) >> next-slide
Filling with weights in AnalysisTop [ mc*lep*pileup*btag ]
- Lepton Object Selection
pT>25GeV
|η|<2.4 && veto LAr-crackel : ID = TightLH with isolation
IDloose = LooseLH w/o isolationmu: ID = Tight with isolation
IDloose = Loose w/o isolation
2015/7/24 tthbb meeting 3
- Jet Object Selection
pT>25GeV
|η|<2.5JVT>0.64 if pT<50GeV && |η|<2.4btag:MV2C20 77%OP.
configuration file is in the BACKUP
Estimation of Fake-Leptons
Using MTW distribution for each jetbin and bjetbin
dataloose – datatight = dataloose only
MCloose – MCtight = MCloose only
dataloose only – MCloose only = fake-leptonstemplate
Decide the SF of the fake
with the MC-Data consistency of the Wjets
fake+W = SFWjets x Wjets + SFfake x fake-leptonstemplate
datatight – MC(tt,sg-t,Zj)tight
2015/7/24 tthbb meeting 4
=
Require MET >30GeV to check in the cleaner environment
Fake-Leptons Histograms
2015/7/24 tthbb meeting 5
dataloose only＝ dataloose – datatight
dataloose
datatight
MCloose only=MCloose – MCtight
MCloose
MCtight
dataloose only – MCloose only = fake-leptonstemplate
Fake-Leptons SF
2015/7/24 tthbb meeting 6
SF of Wjets = 2.86SF of fake = 0.096
faketemplate
fake+W
Wjets
4jet 0btagged region
SFWjets x Wjets + SFfake x faketemplate
Decided SFs
2015/7/24 tthbb meeting 7
Jetbin bjetbin SF in fake SF in Wj
0 0 0.022 0.85
1 0 0.052 0.84
1 1 0.028 0.89
2 0 0.044 1.33
2 1 0.043 1.74
2 2 0.097 1.09
3 0 0.079 2.22
3 1 0.026 2.68
3 2 incl. 0.068 0.60
4 incl. 0 0.096 2.86
4 incl. 1 0.054 1.31
4 incl. 2 incl. 0.25 1.00
SF of the Wjets increases at higher jet multiplicity events. This must be because of Powheg mis-modeling.
MTW
2015/7/24 tthbb meeting 8
0jetbin 0btag
2jetbin 0btag
2jetbin 1btag
4jetbin 0btag
4jetbin 1btag
4jetbin 2btag
Looking good data/MC
Jet pT(eta) in the 4j2b
9
1st leading 2nd leading 3rd leading
4th leading 5th leading
2015/7/24 tthbb meeting
1st leadingjet eta
Leading btag jet pT in the 4j2b
10
1st leading b 2nd leading b
2015/7/24 tthbb meeting
lepton pt and eta in the 4j2b
2015/7/24 tthbb meeting 11
lepton pT
lepton eta
HT
2015/7/24 tthbb meeting 12
Scalar sum of the jet pT Scalar sum of the jet/lep pT and MET
6jet 2b regions
2015/7/24 tthbb meeting 13
1st leading jet
2nd leading jet
1st leading bjet
2nd leading bjet
scalar sum of the jetpT
scalar sum of the jet/lep pT, MET
Look into the Electron Channel
2015/7/24 tthbb meeting 14
dataloose only＝ dataloose – datatight
dataloose
datatight
There is the large contamination of the W-peak into the loose-only.→It is required to use ID medium to get the dataloose only.
Summary
Good agreement of MC/data as first comparison
with fake(QCD) estimate.
Fakes were estimated using the MTW.
It is better to test Multi-leg generator like Sharpa (or Alpgen).
Electron channel analysis is now in going.
We are going to look into the various kinematics.
2015/7/24 tthbb meeting 15
BACK UP >>2015/7/24 tthbb meeting 16
Configuration File
LibraryNames libTopEventSelectionTools libTopEventReconstructionTools libTTHbbLeptonic
################################################################################
GRLFile data15_13TeV.periodAllYear_DetStatus-v63-pro18-01_DQDefects-00-01-02_PHY
S_StandardGRL_All_Good.xml
ElectronCollectionName Electrons
MuonCollectionName Muons
JetCollectionName AntiKt4EMTopoJets
LargeJetCollectionName None
LargeJetSubstructure None
TauCollectionName None
PhotonCollectionName None
METCollectionName MET_Reference_AntiKt4EMTopo
LooseMETCollectionName MET_Reference_AntiKt4EMTopo
################################################################################
TruthCollectionName TruthParticles
TruthJetCollectionName AntiKt4TruthJets
TopPartonHistory ttbar
TruthBlockInfo False
PDFInfo True
################################################################################
ObjectSelectionName TTHbbLeptonicObjectLoaderLow
################################################################################
OutputFilename output.root
OutputFormat ttHNtupleEventSaver
OutputEvents SelectedEvents
PerfStats Yes
CalculateSF True
Systematics Nominal
ElectronID TightLH
ElectronIDLoose LooseLH
MuonQuality Tight
MuonQualityLoose Loose
FakesControlRegionDoLooseMC True
OverlapRemovalLeptonDef Tight
ApplyElectronInJetSubtraction False
################################################################################
SELECTION e_jets
INITIAL
GRL
GOODCALO
EL_N 25000 >= 1
EL_N 25000 == 1
MU_N 25000 == 0
JETCLEAN LooseBad
JET_N 25000 >= 1
JET_N 25000 >= 2
SAVE
SELECTION mu_jets
INITIAL
GRL
GOODCALO
MU_N 25000 >= 1
MU_N 25000 == 1
EL_N 25000 == 0
JETCLEAN LooseBad
JET_N 25000 >= 1
JET_N 25000 >= 2
SAVE
2015/7/24 tthbb meeting 17
Dataset Information
Wminus: xs= 8282.6000, k=1.0358
Wplus: xs=11306.0000, k=1.0172
Zll: xs= 1901.2000, k=1.026
Sg-top
Wt,incl,t: xs=34.0090, k=1
Wt,incl,tbar: xs=33.9890, k=1
Wt,dilep,t: xs=3.5835, k=1
Wt,dilep,tbar: xs=3.5814, k=1
tch,lept,t: xs=43.7390, k=1
tch,lept,tbar: xs=25.7780, k=1
ttbar nonallhad: xs=696.1100, k=1.1949, Filter=0.543
ttH incl,nonallhad: xs=0.5085, k=1
2015/7/24 tthbb meeting 18
xs:[pb]
