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HH -> bbtautau working TWiki for the full Run-2 resonant UL analysis


Documentation

Analysis Note : AN-18-121 GitLab repository
Paper : HIG-20-010 GitLab repository
CADI line: HIG-20-010
Twiki for HIG-20-010 Q/A: twiki link
Review HN for HIG-20-010 HN link

Instructions how to use GitLab repository for the documentation are here

Talks in subgroup/working meetings

Data and MC samples:

Google Sheet

Baseline selection

Triggers

2016

Recorded luminosity: 35.92 fb-1

Recommended tau triggers: presentation

Channel HLT path Recorded lumi (fb-1) First run Last run Lumi correction factor Comments
etauh HLT_Ele25_eta2p1_WPTight_Gsf 35.91821949 281613 284044 -  
mutauh HLT_IsoMu22 28.56437318 273158 284044 0.795221971  
HLT_IsoMu22_eta2p1 33.18226211 274954 284044 0.923782353  
HLT_IsoTkMu22 28.5643731 273158 284044 0.795221971  
HLT_IsoTkMu22_eta2p1 33.18226211 274954 284044 0.923782353  
HLT_IsoMu19_eta2p1_LooseIsoPFTau20 35.91821949 273158 284044 - Hidden from the name: tau eta restriction: abs(eta) < 2.1
HLT_IsoMu19_eta2p1_LooseIsoPFTau20_SingleL1 35.91821949 273158 284044 - tau eta restriction: abs(eta) < 2.5, using abs(eta) < 2.1 for matching
tauhtauh HLT_DoubleMediumIsoPFTau35_Trk1_eta2p1_Reg 27.26759111 273158 280385 - run B to G
HLT_DoubleMediumCombinedIsoPFTau35_Trk1_eta2p1_Reg_v 8.65062838 281613 284044 - run H

2017

Recorded luminosity: 41.52915206 fb-1

Recommended tau triggers: github

Channel HLT path Recorded lumi (fb-1) First run Last run Lumi correction factor Comments
etauh HLT_Ele32_WPTight_Gsf_L1DoubleEG 14.405251715 297050 302025 - for Run < 302026 requiring hltEGL1SingleEGOrFilter twiki
HLT_Ele32_WPTight_Gsf 27.12209722 302026 306460 - for Run >= 302026 and MC
HLT_Ele35_WPTight_Gsf 41.52734893 297050 306460 -  
HLT_Ele24_eta2p1_WPTight_Gsf_LooseChargedIsoPFTau30_eta2p1_CrossL1 41.52734893 297050 306460 -  
mutauh HLT_IsoMu24 38.04647624 297050 306460 0.91613901  
HLT_IsoMu27 41.52734893 297050 306460 -  
HLT_IsoMu20_eta2p1_LooseChargedIsoPFTau27_eta2p1_CrossL1 41.52734893 297050 306460 -  
tauhtauh HLT_DoubleTightChargedIsoPFTau35_Trk1_TightID_eta2p1_Reg 41.52734893 297050 306460 -  
HLT_DoubleMediumChargedIsoPFTau40_Trk1_TightID_eta2p1_Reg 41.52734893 297050 306460 -  
HLT_DoubleTightChargedIsoPFTau40_Trk1_eta2p1_Reg 41.52734893 297050 306460 -  
tauhtauh (VBF only) HLT_VBF_DoubleLooseChargedIsoPFTau20_Trk1_eta2p1_Reg 27.122097216 302026 306460 0.65308574 run D-F

2018

Recorded luminosity: 59.74056520 fb-1

Recommended tau triggers: github

Channel HLT path Recorded lumi (fb-1) First run Last run Lumi correction factor Comments
etauh HLT_Ele32_WPTight_Gsf 59.73596937 315257 325172 -  
HLT_Ele35_WPTight_Gsf 59.73596937 315257 325172 -  
HLT_Ele24_eta2p1_WPTight_Gsf_LooseChargedIsoPFTau30_eta2p1_CrossL1 17.68288714 315257 317508 - for Run < 317509
HLT_Ele24_eta2p1_WPTight_Gsf_LooseChargedIsoPFTauHPS30_eta2p1_CrossL1 42.05308223 317509 325172 - for Run >= 317509 and MC
mutauh HLT_IsoMu24 59.73596937 315257 325172 -  
HLT_IsoMu27 59.72780434 315257 325172 -  
HLT_IsoMu20_eta2p1_LooseChargedIsoPFTau27_eta2p1_CrossL1 17.68288714 315257 317508 - for Run < 317509
HLT_IsoMu20_eta2p1_LooseChargedIsoPFTauHPS27_eta2p1_CrossL1 42.05308223 317509 325172 - for Run >= 317509 and MC
tauhtauh HLT_DoubleTightChargedIsoPFTau35_Trk1_TightID_eta2p1_Reg 17.68288714 315257 317508 - for Run < 317509
HLT_DoubleMediumChargedIsoPFTau40_Trk1_TightID_eta2p1_Reg 17.68288714 315257 317508 - for Run < 317509
HLT_DoubleTightChargedIsoPFTau40_Trk1_eta2p1_Reg 17.68288714 315257 317508 - for Run < 317509
HLT_DoubleMediumChargedIsoPFTauHPS35_Trk1_eta2p1_Reg 42.05308223 317509 325172 - for Run >= 317509 and MC
tauhtauh (VBF only) HLT_VBF_DoubleLooseChargedIsoPFTau20_Trk1_eta2p1 17.110557111 315257 317488 - for Run < 317509
HLT_VBF_DoubleLooseChargedIsoPFTauHPS20_Trk1_eta2p1 42.053082232 317527 325172 0.990342 for Run >= 317509 and MC

HTT selection

Pair assessment

See HTT working twiki

MC matching

Same as HTT MC matching twiki, with two differences (since all tau-related corrections are calculated starting from NanoAODs so we stay aligned to NanoAODs):

- we require a dR<0.3 match (instead of 0.2) between genParticle and reco::Tau

- we require a minimum deltaPt for the match: < 1.0 for hadronic tau products matching, < 0.5 for e&mu matching. The deltaPt is computed as (gen_pT - reco_pT) / gen_pT , see here for exact definition.

For more info on NanoAODs see nanoAOD cmssw config

Baseline selections

General: Offline leptons are required to be matched to a trigger leg of the same type, to be kinematically accessible for the trigger(s) that fired and to be at the efficiency plateau computed as a function of the corresponding trigger leg: each offline object should have

pT > pT_HLTthreshold + offset

where offset = 1 GeV for muons, 1 GeV for electrons and 5 GeV for tauh.


> check eta thresholds for single lepton triggers

etauh:

Object Year HLT path Selection
e all all Tight MVA ID (mvaEleID-Fall17-iso-V2-wp80)
abs(dxy) < 0.045 cm, abs(dz) < 0.2 cm
2016 single-e pT > 26 GeV, abs(eta)<2.1
2017 single-e pT > 33 GeV, abs(eta)<2.1
cross etauh pT > 25 GeV, abs(eta)<2.1
2018 single-e pT > 33 GeV, abs(eta)<2.1
cross etauh pT > 25 GeV, abs(eta)<2.1
tauh all all decayModeFindingNewDMs > 0.5 (DM0, DM1, DM10, DM11)
abs(dz) < 0.2 cm
DeepTauv2p1: Medium VSjet, Tight VSmu, VLoose VSe
2016 single-e pT > 20 GeV, abs(eta)<2.3
2017 single-e pT > 20 GeV, abs(eta)<2.3
cross etauh pT > 35 GeV, abs(eta)<2.1
2018 single-e pT > 20 GeV, abs(eta)<2.3
cross etauh pT > 35 GeV, abs(eta)<2.1
Pair all all deltaR (e,tauh) >0.5 , OS
mutauh:

Object Year HLT path Selection
mu all all Tight Muon ID and Iso < 0.15
abs(dxy) < 0.045 cm, abs(dz) < 0.2 cm
2016 single-mu pT > 23 GeV, abs(eta)<2.1
cross mutauh pT > 20 GeV, abs(eta)<2.1
2017 single-mu pT > 25 GeV, abs(eta)<2.1
cross mutauh pT > 21 GeV, abs(eta)<2.1
2018 single-mu pT > 25 GeV, abs(eta)<2.1
cross mutauh pT > 21 GeV, abs(eta)<2.1
tauh all all decayModeFindingNewDMs > 0.5 (DM0, DM1, DM10, DM11)
abs(dz) < 0.2 cm
DeepTauv2p1: Medium VSjet, Tight VSmu, VLoose VSe
2016 single-mu pT > 20 GeV, abs(eta)<2.3
cross mutauh pT > 25 GeV, abs(eta)<2.1
2017 single-mu pT > 20 GeV, abs(eta)<2.3
cross mutauh pT > 32 GeV, abs(eta)<2.1
2018 single-mu pT > 20 GeV, abs(eta)<2.3
cross mutauh pT > 32 GeV, abs(eta)<2.1
Pair all all DR (mu,tauh) >0.5 , OS
tauhtauh

Object Year HLT path Selection
both tauh all all decayModeFindingNewDMs > 0.5 (DM0, DM1, DM10, DM11)
abs(dz) < 0.2 cm
DeepTauv2p1: Medium VSjet, VLoose VSmu, VVLoose VSe
2016 di-tauh pT > 40 GeV, abs(eta)<2.1
2017 di-tauh pT > 40 GeV, abs(eta)<2.1
VBF H->tauhtauh pT > 25 GeV, abs(eta)<2.1
2018 di-tauh pT > 40 GeV, abs(eta)<2.1
VBF H->tauhtauh pT > 25 GeV, abs(eta)<2.1
Pair all all DR (tauh,tauh) >0.5, OS
third lepton veto

Reject events that have an electron or a muon, in addition to the signal electron (muon) for the eTau (muTau) channel, that passes the following selection:

Electron: pt > 10 GeV, abs(eta) < 2.5 ,abs(dz) < 0.2, abs(dxy) < 0.045, ( passes mvaEleID-Fall17-iso-V2-wp90 OR (passes mvaEleID-Fall17-noIso-V2-wp90 AND pfRelIso04 < 0.3) )

Muon: pt > 10 GeV, abs(eta) < 2.4, abs(dz) < 0.2, abs(dxy) < 0.045, passes Medium Muon ID or Tight Muon ID, pfRelIso04 < 0.3

Jets selection

bjet candidates requirements: pT > 20 GeV and abs(eta) < 2.4(2.5) for 2016 (2017/18), Tight jetID, Loose pileupID for jets with pt < 50 GeV

VBF jet candidates requirements: pT > 30 GeV and abs(eta) < 4.7, Tight jetID, Loose pileup ID for jets with pt < 50 GeV

2017 noisy jet cleaning: remove jets that have 20 < pt < 50 && abs(eta) > 2.65 && abs(eta) < 3.139

Jets sorting:
The b-jets chosen are the two jets with the highest HH-Btag score, while among the remaining jets all possible pairs are built and the pair with highest invariant mass is chosen as the VBF-jets pair.
OUTDATED: The old method of jet ordering is described in slide 6 (the actual btag discriminator used was DeepFlavour, not CSVv2)

MC corrections checklist

Correction 2016 2017 2018 Links
genuine tauh ES Yes / Done Yes / Done Yes / Done TauIDRecommendationForRun2
e->tauh ES Yes / Done Yes / Done Yes / Done TauIDRecommendationForRun2
mu->tauh ES Cancel Cancel Cancel TauIDRecommendationForRun2
e->tauh fake rate SF Yes / Done Yes / Done Yes / Done TauIDRecommendationForRun2
mu->tauh fake rate SF Yes / Done Yes / Done Yes / Done TauIDRecommendationForRun2
genuine tau ID SF Yes / Done Yes / Done Yes / Done TauIDRecommendationForRun2
tau trigger SF Yes / Done Yes / Done Yes / Done github presentation
e/mu ID SF Yes / Done Yes / Done Yes / Done github
e/mu trigger SF Yes / Done Yes / Done Yes / Done github
VBF trigger weights Cancel Gray led (re-do with DeepTauID) Yellow led presentation (2018)
L1 prefiring weigth Yes / Done Yes / Done -- twiki
btag eff SF (DeepFlavour) Yes / Done Yes / Done Yes / Done BtagRecommendation102X
Top pt reweighting Cancel Cancel Cancel TopPtReweighting, hypernews
Pileup Jet ID SF Yes / Done Yes / Done Yes / Done PileupJetID
DY weights Yellow led Yellow led Yellow led presentation
PU reweight from TT samples by groups of compatible samples from TT samples  

Yes / Done = Available
Cancel = Not needed
No = Not available
Yellow led = Preliminary
Gray led = Outdated

Systematic uncertainties

-- LouisAdrienPaulPortales - 2021-10-29

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