Samples

See https://twiki.cern.ch/twiki/bin/viewauth/CMS/PdmVAnalysisSummaryTable

• data (SingleMuon and MuonEG) and MC, all eras
• 2016, 2017 re-miniAOD see https://twiki.cern.ch/twiki/bin/view/CMSPublic/WorkBookMiniAOD#2017_and_2016_re_miniAOD_94X_ver
• 2016
  • data, Nano1June2019 based on re-miniAOD 17Jul2018 (94X), based on 17Aug2017 data re-reco
  • MC, RunIISummer16NanoAODv5 based on re-miniAOD RunIISummer16MiniAODv3 (94X)... consistent with other eras (systematics)?? or need ultra-legacy?
• 2017:
  • data, Nano1June2019 based on re-miniAOD 31Mar2018 (94X)
  • MC, RunIIFall17NanoAODv5 based on re-miniAOD 12Apr2018 (94X)
• 2018:
  • data, Nano1June2019 based on 17Sep2018 (ABC), 22Jan2019 (EGamma, SingleMuon D) (102X)
  • MC, RunIIAutumn18NanoAODv5 based on miniAOD RunIIAutumn18MiniAOD (102X)
• filters, dedicated samples: which eras?

Selection

To decide/check version:

• trigger: matching -> probably not needed
• jet ID -> tightLepVeto, i.e. bit3 of Jet_jetId (-> ==6)
• muon ID/iso (also <-> trigger) -> tight
• electron ID/iso (also <-> trigger) -> tight cut-based atm, move to MVA??
• b-tagging: which tagger -> deepFlavour Medium atm, TBD
• MET filters -> done (but keep an eye how recommendations evolve)

Gen level

Useful links: ParticleLevelProducer, nanoAOD config

Corrections

Either need to add or check if correct version:

• b-tag SF -> done: 2018
• trigger SF -> done: 2018
• lepton ID/iso SF -> done: 2018
• pileup reweighting -> done: 2018 (issue with 2018 samples -> only some samples?)
• JEC: still up-to-date or need recorrection? also: check needed components
  • 2018: in nanoAODv5 = AutumnV8, will be updated soon
• JER -> done but not used
• electron scale+smearing
• muon rochester

Data quality issues:

• fake muon/MET: 2016
• ECAL slew rate: 2016
• L1 prefiring: 2016, 2017
• endcap ECAL noise (-> fake MET): 2017, 2018 -> OK with filters?
• HEM issues: 2018
• Electron HLT Zvtx SF: 2017 (https://twiki.cern.ch/twiki/bin/viewauth/CMS/EgammaRunIIRecommendations#HLT_Zvtx_Scale_Factor)

Systematics

Experimental

• b-tag
• trigger (inc. L1 prefiring) -> done: 2018
• lepton ID/iso -> done: 2018
• pileup
• JEC
• JER
• electron/muon scale: not needed?

Theory

Using weights

• PDF
• QCD scales
• PS scale
• b fragmentation?
• B branching ratios?
• top pt

Using alternative samples

• CR
• hdamp
• top mass?
• UE tune