Tutorials

Getting started

This tutorial shows you how to set up the code and run the tuplizer.

1. Prepare and install the code in a CMSSW area by following the instructions on the main readme.

2. Run cmsenv inside or downstream of the CMSSW area's src directory.

3. Make sure your Grid-configuration is initialized with

   voms-proxy-init -voms cms

4. Go to $CMSSW_BASE/src/Analyzers/FatjetAnalyzer/test and run

   cmsRun tuplizer.py maxEvents=5 inFile=/store/mc/RunIISummer16MiniAODv2/QCD_HT1000to1500_TuneCUETP8M1_13TeV-madgraphMLM-pythia8/MINIAODSIM/PUMoriond17_80X_mcRun2_asymptotic_2016_TrancheIV_v6-v1/50000/00559533-06B7-E611-8594-0CC47AD9914C.root

   This should tuplize the first 5 events of the example QCD MC file. The output will be put in a file called tuple__spring15_pt300_08002001.root.

5. Check that everything worked by looking in the tuple, like this:

    TTree* root -l tuple__spring15_pt300_08002001.root
    TTree* tt = (TTree*) _file0->Get("tuplizer/events")
    tt->Scan("ca12_pf_pt[0]")
   

6. The result should be the pT of the leading jets that passed the basic filter:

    ************************
    *    Row   * ca12_pf_p *
    ************************
    *        0 * 597.83597 *
    *        1 * 539.60461 *
    *        2 * 486.71224 *
    *        3 * 627.14510 *
    ************************