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dkralph |
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// #define debug
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//================================================================================================
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//
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// Measure fake rate using muon triggered sample
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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 <TLegend.h>
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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 <TCanvas.h>
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#include <TH1F.h>
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#include <TTree.h> // class to access ntuples
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#include <TClonesArray.h> // ROOT array class
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#include <TLorentzVector.h> // 4-vector class
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#include <TBenchmark.h> // class to track macro running statistics
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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 <sstream> // class for parsing strings
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#endif
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TCanvas *c1 = new TCanvas("c1","c1");
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TString binning("(100,90,500)");
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TH1F *getMCFM(TString mass, TString process)
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{
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TString fname;
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if(process=="higgs")
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fname = "/temp/dkralph/mcfm/114-"+mass+"/HZZ_4l_virt_mstw8nl_91__91__virtggonly.root";
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else if(process=="zz")
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fname = "/temp/dkralph/mcfm/81-115/ZZlept_tota_mstw8nl_91__91__virtggonly.root";
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// fname = "/temp/dkralph/ZZlept_virt_mstw8nl_91__91__virtggonly.root";
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TFile f(fname);
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TTree *tree=0;
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f.GetObject("h10",tree);
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TString A,B,C,D,m,varexp;
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A = "(px3+px4+px5+px6)*(px3+px4+px5+px6)";
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B = "(py3+py4+py5+py6)*(py3+py4+py5+py6)";
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C = "(pz3+pz4+pz5+pz6)*(pz3+pz4+pz5+pz6)";
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D = "(E_3+E_4+E_5+E_6)*(E_3+E_4+E_5+E_6)";
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m = "sqrt("+D+"-"+A+"-"+B+"-"+C+")";
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varexp= m+">>m4l"+binning;
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tree->Draw(varexp,"wt_ALL");
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TH1F *hm = (TH1F*)gDirectory->Get("m4l");
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hm->SetDirectory(0);
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hm->SetTitle("m4l");
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f.Close();
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hm->Scale(1./hm->Integral(0,hm->GetNbinsX()));
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return hm;
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}
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TH1F *getPowheg(TString mass, TString process)
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{
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TString fname;
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if(process=="higgs")
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fname = "~/cms/cmssw/025/CMSSW_4_4_1/src/MitHzz4l/data/m4lshapes/s11-h"+mass+"zz4l-gf-v1g1-pu.root";
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if(process=="zz")
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fname = "~/cms/cmssw/025/CMSSW_4_4_1/src/MitHzz4l/data/m4lshapes/s11-zz-v11-pu_ntuple.root";
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TFile fpowheg(fname);
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TTree *tr_powheg = (TTree*)fpowheg.Get("tr_m4l");
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tr_powheg->Draw("m4l>>m4l_pow"+binning);
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TH1F *hm = (TH1F*)gDirectory->Get("m4l_pow");
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hm->SetDirectory(0);
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fpowheg.Close();
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hm->Scale(1./hm->Integral(0,hm->GetNbinsX()));
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return hm;
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}
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void Draw_em(TH1F *hm, TH1F *hpowheg, TH1F *hratio, TH1F *hoppo, TH1F *hopporatio)
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{
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hm->Draw();
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hpowheg->SetLineColor(kRed);
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hpowheg->Draw("same");
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hratio->SetLineColor(kBlue);
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// hratio->Scale(1./hratio->Integral(0,hratio->GetNbinsX())); // don't scale it!
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hratio->Draw("same");
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hoppo->SetLineColor(kBlack);
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hoppo->Scale(1./hoppo->Integral(0,hoppo->GetNbinsX()));
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hoppo->Draw("same");
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hopporatio->SetLineColor(kViolet);
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// hopporatio->Scale(1./hopporatio->Integral(0,hopporatio->GetNbinsX())); // don't scale it!
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hopporatio->Draw("same");
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TLegend leg(0.7,0.7,0.9,0.9);
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leg.AddEntry(hm,"MCFM","L");
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leg.AddEntry(hpowheg,"POWHEG","L");
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leg.AddEntry(hratio,"ratio","L");
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leg.AddEntry(hoppo,"opp. mcfm","L");
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leg.AddEntry(hopporatio,"opp. ratio","L");
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leg.SetFillColor(0);
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// leg.Draw();
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c1->SetLogy();
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c1->SaveAs("~/public_html/fo3o.png");
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}
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TH1F* makeRatio(TH1F *hm, TH1F *hpowheg)
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{
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TH1F *ratio = new TH1F(*hm);
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ratio->Divide(hm,hpowheg);
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return ratio;
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}
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TH1F* makeOppo(TH1F *hm, TH1F *hpowheg)
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{
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TH1F *hoppo = new TH1F(*hm);
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for(int ibin=0; ibin<hm->GetNbinsX()+2; ibin++) {
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float powheg = hpowheg->GetBinContent(ibin);
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float mcfm = hm->GetBinContent(ibin);
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hoppo->SetBinContent(ibin,2*powheg - mcfm);
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}
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return hoppo;
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}
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void writeHists(TH1F *hratio, TH1F *hopporatio, TString process, TString mass)
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{
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TString fname;
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if(process=="higgs") fname = "~/cms/cmssw/025/CMSSW_4_4_1/src/MitHzz4l/data/m4lshapes/s11-h"+mass+"zz4l-gf-v1g1-pu_weights.root";
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else if(process=="zz") fname = "~/cms/cmssw/025/CMSSW_4_4_1/src/MitHzz4l/data/m4lshapes/s11-zz-v11-pu_weights.root";
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TFile f(fname,"update");
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hratio->Write("low");
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hopporatio->Write("high");
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f.Close();
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}
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//----------------------------------------------------------------------------------------
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// main
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//----------------------------------------------------------------------------------------
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void makeShape()
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{
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TString mass("115");
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TH1F *hm = getMCFM(mass,"zz"); // mcfm shape
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TH1F *hpowheg = getPowheg(mass,"zz"); // powheg shape
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TH1F *hratio = makeRatio(hm,hpowheg); // mcfm/powheg
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TH1F *hoppo = makeOppo(hm,hpowheg); // "opposite" shape to mcfm
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TH1F *hopporatio = makeRatio(hoppo,hpowheg); // "opposite to mcfm"/powheg
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Draw_em(hm,hpowheg,hratio,hoppo,hopporatio);
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writeHists(hratio,hopporatio,"zz",mass);
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}
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