00001 {
00002 gROOT->Reset();
00003
00004 TFile *f1 = new TFile("YYYY/m_root_dir/LumTau_XXXX.root");
00005 TTree *data =event;
00006
00007 Double_t time = 0.0,dltphi = 0.0,costht1 = 0.0,costht2 = 0.0,e1 = 0.0,e2 = 0.0,etot = 0.0,phi1 = 0.0,phi2 = 0.0;
00008 Int_t nentries = 0;
00009
00010 data->SetBranchAddress("time",&time);
00011 data->SetBranchAddress("dltphi",&dltphi);
00012 data->SetBranchAddress("costht1",&costht1);
00013 data->SetBranchAddress("costht2",&costht2);
00014 data->SetBranchAddress("e1",&e1);
00015 data->SetBranchAddress("e2",&e2);
00016 data->SetBranchAddress("etot",&etot);
00017 data->SetBranchAddress("phi1",&phi1);
00018 data->SetBranchAddress("phi2",&phi2);
00019 TH1D *hdltphi[10];
00020
00021 for(Int_t i=0;i<10;i++)
00022 {
00023 hdltphi[i] = new TH1D(" ","dltphi distribution",50,-50.,50.);
00024 }
00025
00026 TH1 *htime = new TH1D("htime","time", 80, -10., 10.);
00027 Double_t timemin = 0.0,timemax = 0.0;
00028 nentries = (Int_t)data->GetEntries();
00029
00030 data->GetEntry(0);
00031 timemin = time;
00032 data->GetEntry((nentries - 1));
00033 timemax = time;
00034
00035 Double_t difft = timemax-timemin;
00036 Double_t xtime[11],lum[10];
00037 for(Int_t i=0;i<11;i++)
00038 {
00039 xtime[i]=timemin+(difft/10.)*i;
00040 }
00041 for(Int_t i=0;i<10;i++)
00042 {
00043 for(Int_t j=0;j<nentries;j++)
00044 {
00045 data->GetEntry(j);
00046 bool lumcut = e1>1.2&&e2>0.8&&fabs(costht1)<0.8&&
00047 fabs(costht2)<0.8&&fabs(dltphi+1.055)>2.&&
00048 fabs(dltphi+1.055)<25.&&etot<4.0;
00049 if(lumcut&&time>xtime[i]&&time<xtime[i+1])
00050 {
00051 hdltphi[i]->Fill(dltphi);
00052 }
00053 }
00054 }
00055
00056 Int_t nevt[10];
00057 Double_t x[10];
00058 for(Int_t i=0;i<10;i++)
00059 {
00060 nevt[i] = hdltphi[i]->GetEntries();
00061 x[i]=xtime[i+1]-xtime[0];
00062 lum[i]=nevt[i]/(0.2*2514);
00063 }
00064
00065 const Int_t n = 10;
00066 TF1 *g1 = new TF1("g1","[0]*exp(-x/[1])",0,10000.);
00067 g1->SetParameters(lum[0],1e+4.);
00068 g1->SetLineColor(2);
00069 TGraph* gr = new TGraph(n,x,lum);
00070 gr->SetLineColor(2);
00071 gr->SetLineWidth(2);
00072 gr->SetMarkerColor(4);
00073 gr->SetMarkerStyle(21);
00074 gr->SetTitle("BbLum_000XXXX");
00075 gr->GetXaxis()->SetTitle("Time");
00076 gr->GetYaxis()->SetTitle("Luminosity");
00077 gr->Fit("g1","R");
00078
00079
00080 std::ofstream m_outputFile;
00081 m_outputFile.open("YYYY/m_txt_dir/LumTau_XXXX.txt", ios_base::app);
00082 m_outputFile<<XXXX<<" "<<difft<<" "<<g1->GetParameter(0)<<" "<<(g1->GetParameter(0) * exp(- 1.0 * difft / (g1->GetParameter(1))))<<" "<<g1->GetParameter(1)<<endl;
00083 m_outputFile.close();
00084
00085 gROOT->ProcessLine(".q");
00086 }
