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jueugste |
1.1 |
using namespace std;
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void normalizeMC2() {
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// luminosity (nb-1 / 1000 = pb-1)
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double lumi = 7.6 / 1000.;
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cout<<"Integrated luminosity is: "<<lumi<<" pb-1"<<endl;
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TFile *QCD15 = TFile::Open("QCD15/root/QCD15.root");
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TFile *GJ1520 = TFile::Open("GJ1520/root/GJ1520.root");
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TFile *GJ2030 = TFile::Open("GJ2030/root/GJ2030.root");
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TFile *GJ30 = TFile::Open("GJ30/root/GJ30.root");
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TFile *Wenu = TFile::Open("Wenu/root/Wenu.root");
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// xsec * filter
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double xsecQCD15 = 876200000.0 * 1;
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double xsecGJ1520 = 114700.0 * 1.;
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double xsecGJ2030 = 57180.0 * 1.;
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double xsecGJ30 = 20070.0 * 1.;
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double xsecWenu = 9679.9 * 0.779;
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TH1I *histQCD15 = QCD15->Get("numberOfEvents");
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TH1I *histGJ1520 = GJ1520->Get("numberOfEvents");
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TH1I *histGJ2030 = GJ2030->Get("numberOfEvents");
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TH1I *histGJ30 = GJ30->Get("numberOfEvents");
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TH1I *histWenu = Wenu->Get("numberOfEvents");
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// get the number of events
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int numQCD15 = histQCD15->Integral();
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int numGJ1520 = histGJ1520->Integral();
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int numGJ2030 = histGJ2030->Integral();
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int numGJ30 = histGJ30->Integral();
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int numWenu = histWenu->Integral();
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cout<<"have: "<<endl;
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cout<<numQCD15<<endl;
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cout<<numGJ1520<<endl;
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cout<<numGJ2030<<endl;
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cout<<numGJ30<<endl;
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cout<<numWenu<<endl;
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// calculate the normalization factor
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double normQCD15 = lumi * xsecQCD15;
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double normGJ1520 = lumi * xsecGJ1520;
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double normGJ2030 = lumi * xsecGJ2030;
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double normGJ30 = lumi * xsecGJ30;
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double normWenu = lumi * xsecWenu;
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cout<<"should have: "<<endl;
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cout<<"QCD em:"<<endl;
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cout<<normQCD15<<endl;
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cout<<"Photen Jet:"<<endl;
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cout<<normGJ1520<<endl;
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cout<<normGJ2030<<endl;
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cout<<normGJ30<<endl;
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cout<<"Wenu:"<<endl;
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cout<<normWenu<<endl;
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double facQCD15 = normQCD15/numQCD15;
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double facGJ1520 = normGJ1520/numGJ1520;
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double facGJ2030 = normGJ2030/numGJ2030;
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double facGJ30 = normGJ30/numGJ30;
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double facWenu = normWenu/numWenu;
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cout<<"factor: "<<endl;
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cout<<facQCD15<<endl;
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cout<<facGJ1520<<endl;
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cout<<facGJ2030<<endl;
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cout<<facGJ30<<endl;
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cout<<facWenu<<endl;
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TFile *out=new TFile("bckgd.root","RECREATE");
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// loop over all histos
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TIter next (QCD15->GetListOfKeys ());
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for (TKey* key = 0; (key = (TKey *) next());) {
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TH1D *h_QCD15 = QCD15->Get(key->GetName());
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TH1D *h_GJ1520 = GJ1520->Get(key->GetName());
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TH1D *h_GJ2030 = GJ2030->Get(key->GetName());
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TH1D *h_GJ30 = GJ30->Get(key->GetName());
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TH1D *h_Wenu = Wenu->Get(key->GetName());
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// scale them
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h_QCD15->Scale(facQCD15);
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h_GJ1520->Scale(facGJ1520);
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h_GJ2030->Scale(facGJ2030);
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h_GJ30->Scale(facGJ30);
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h_Wenu->Scale(facWenu);
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// sum the background up
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h_QCD15->Add(h_GJ1520);
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h_QCD15->Add(h_GJ2030);
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h_QCD15->Add(h_GJ30);
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//h_QCD15->Add(h_Wenu);
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h_QCD15->Write();
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} // loop over keys
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QCD15->Close();
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GJ1520->Close();
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GJ2030->Close();
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GJ30->Close();
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Wenu->Close();
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out->Close();
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}
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