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sixie |
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//root -l CITCommon/Examples/ReadZeeEventExample.C+'("/data/blue/sixie/LeptonScaleAndResolution/Electrons/ZeeNtuple.AllNtuple_HZZ4lNtuple_s12-zllm50-2-v9_noskim_0000.root.root")'
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//root -l CITCommon/Examples/ReadZeeEventExample.C+'("/data/blue/sixie/LeptonScaleAndResolution/Electrons/Hgg/tree_zee_nosmear.root",2)'
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//================================================================================================
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//
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// Example
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//
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//________________________________________________________________________________________________
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#if !defined(__CINT__) || defined(__MAKECINT__)
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#include <TROOT.h> // access to gROOT, entry point to ROOT system
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#include <TSystem.h> // interface to OS
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#include <TFile.h> // file handle class
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#include <TTree.h> // class to access ntuples
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#include <TH1F.h> //
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#include <TCanvas.h> //
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#include <TClonesArray.h> // ROOT array class
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#include <TBenchmark.h> // class to track macro running statistics
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#include <TLorentzVector.h> // class for 4-vector calculations
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#include <vector> // STL vector class
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#include <iostream> // standard I/O
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#include <iomanip> // functions to format standard I/O
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#include <fstream> // functions for file I/O
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#include <string> // C++ string class
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#include <sstream> // class for parsing strings
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// structure for output ntuple
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#include "CITCommon/CommonData/interface/ZeeEventTree.h"
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#endif
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//=== MAIN MACRO =================================================================================================
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void ReadZeeEventExample(const string inputfile, Int_t Option = 0) {
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//*****************************************************************************************
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//Make a Histogram
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//*****************************************************************************************
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TH1F *hist = new TH1F ("mass",";Mass [GeV/c^{2}];Number of Events",80,40,200);
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//*****************************************************************************************
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// Input
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//*****************************************************************************************
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citana::ZeeEventTree zeeTree;
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if (Option == 0) {
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cout << zeeTree.fTreeType << endl;
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zeeTree.LoadTree(inputfile.c_str());
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zeeTree.InitTree();
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cout << zeeTree.fTreeType << endl;
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}
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if (Option == 1) {
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zeeTree.LoadTree(inputfile.c_str(),citana::ZeeEventTree::kHggFutyanZeeDataEvent);
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zeeTree.InitTree(citana::ZeeEventTree::kHggFutyanZeeDataEvent);
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}
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if (Option == 2) {
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zeeTree.LoadTree(inputfile.c_str(),citana::ZeeEventTree::kHggFutyanZeeMCEvent);
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zeeTree.InitTree(citana::ZeeEventTree::kHggFutyanZeeMCEvent);
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}
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//*****************************************************************************************
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// Read Input File
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//*****************************************************************************************
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for (Long64_t ievt=0; ievt<zeeTree.tree_->GetEntries();ievt++) {
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if (ievt%10000 == 0) std::cout << "--- ... Processing event: " << ievt << std::endl;
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zeeTree.tree_->GetEntry(ievt);
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if (zeeTree.Ele1Pt() > 25 && zeeTree.Ele2Pt() > 25) {
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//For supercluster energy
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TLorentzVector ele1;
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TLorentzVector ele2;
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Bool_t useRegression = kFALSE;
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//Note: Et = E / Cosh(eta)
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if (useRegression) {
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ele1.SetPtEtaPhiM( zeeTree.fEle1EnergyRegression / TMath::CosH(zeeTree.Ele1Eta()) , zeeTree.Ele1Eta(), zeeTree.Ele1Phi(), 0.51099892e-3);
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ele2.SetPtEtaPhiM( zeeTree.fEle2EnergyRegression / TMath::CosH(zeeTree.Ele2Eta()) , zeeTree.Ele2Eta(), zeeTree.Ele2Phi(), 0.51099892e-3);
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} else {
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ele1.SetPtEtaPhiM( zeeTree.Ele1Pt() , zeeTree.Ele1Eta(), zeeTree.Ele1Phi(), 0.51099892e-3);
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ele2.SetPtEtaPhiM( zeeTree.Ele2Pt() , zeeTree.Ele2Eta(), zeeTree.Ele2Phi(), 0.51099892e-3);
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}
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double weight = 1; //zeeTree.fWeight //if you want to use pileup reweighting
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hist->Fill((ele1+ele2).M(), weight);
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}
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}
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//--------------------------------------------------------------------------------------------------------------
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// Plot
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//==============================================================================================================
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TCanvas *cv = new TCanvas("cv","cv", 800, 600);
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hist->Draw("hist");
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cv->SaveAs("massExample.gif");
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}
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