TTC

Steps for setup:

1. release CMSSW_10_6_29

2. Set up NanoAOD tools

   cd $CMSSW_BASE/src
   
   git clone https://github.com/cms-nanoAOD/nanoAOD-tools.git PhysicsTools/NanoAODTools
   
   cd PhysicsTools/NanoAODTools
   
   cmsenv
   
   scram b

3. Set up TTC codes

   cd python/postprocessing
   
   ##clone this repository
   
   git clone https://github.com/menglu21/TTC.git analysis
   
   cd $CMSSW_BASE/src
   
   scram b

   Noticed that the crab_help.py is written in python3, hence the scram b in CMSSW would leave some error message. Since this crab helper normally would not be included by other codes, you can ignore these errors.

4. Substitute some outdated files with init.sh

   cd $CMSSW_BASE/src/PhysicsTools/NanoAODTools/python/postprocessing/analysis
   
   source init.sh

submit jobs

cd analysis/crab

using the configure files under 'configs', namely,

crab submit -c configs/DoubleEGB_cfg.py

rm crab_DoubleEG_B/inputs/*.tgz

You can also check crab/auto_crab_example to run crab jobs batchly and automatically.

corrections

the modules (most of them are corrections) used can be seen from analysis/crab/crab_script.py,

N.B. the egamma correction is already applied default in NanoAOD

for MC:

countHistogramsModule(): store the opsitive and negative events number for weight apply

puWeight_2017(): pileup reweight

PrefCorr(): L1-prefiring correction

muonIDISOSF2017(): muon ID/ISO SF

muonScaleRes2017(): muon momentum correction, i.e., the Rochester correction

eleRECOSF2017(): electron RECO SF

eleIDSF2017(): electron IS SF

jmeCorrections_UL2017MC(): JetMET correction

btagSF2017UL(): b tag SF

for Data:

muonScaleRes2017(): muon momentum correction, i.e., the Rochester correction

jmeCorrections_UL2017*(): JetMET correction

1. pileup reweight

(this correction is applied using the official module, so we need to update the rootfiles for pileup and do some modification on the official module. The files under others/for_pileup/ can be used directly)

data

according to https://twiki.cern.ch/twiki/bin/view/CMS/PileupJSONFileforData#Centrally_produced_ROOT_histogra, use histograms under /afs/cern.ch/cms/CAF/CMSCOMM/COMM_DQM/certification/Collisions17/13TeV/PileUp/UltraLegacy/, combine three histograms to a single one with name “pileup, pileup_plus, pileup_minus”

MC

https://twiki.cern.ch/twiki/bin/view/CMS/PileupScenariosRun2

move "mcPileupUL2017.root" and "PileupHistogram-goldenJSON-13tev-UL2017-99bins_withVar.root" to python/postprocessing/data/pileup/, and move "puWeightProducer.py" to python/postprocessing/modules/common/

2. prefiring correction

(needed files are in others/for_prefiring, can be used directly)

details are here: Pre-firing: https://twiki.cern.ch/twiki/bin/viewauth/CMS/L1ECALPrefiringWeightRecipe#Accessing_the_UL2017_maps, in order to use the current NanoAOD module, extract separate rootfiles from https://github.com/cms-data/PhysicsTools-PatUtils/raw/master/L1PrefiringMaps.root

data & MC

move "others/for_prefiring/*.root" to NanoAODTools/data/prefire_maps/, and move "others/for_prefiring/PrefireCorr.py" to postprocessing/modules/common/

3. JME correction

(needed files are in others/for_jme, can be used directly) move the *.tgz to PhysicsTools/NanoAODTools/data/jme, and move "jetmetHelperRun2.py" to PhysicsTools/NanoAODTools/python/postprocessing/modules/jme

4. Bjet related

(needed files are in others/for_btv, can be used directly) move "btagSFProducer.py" to src/PhysicsTools/NanoAODTools/python/postprocessing/modules/btv, move the *.csv to PhysicsTools/NanoAODTools/data/btagSF

After finisihing all the file moving, please remember delete the "others" directory, as the crab submission have size limit.