1 void CorrectForEfficiencypptrd(const char *filedata,const char *fileMC,const char *NameList,Bool_t withtrd=kTRUE, Float_t CorrType=0, Int_t conf=2, Bool_t smoothing=kFALSE, Bool_t hadroncontaminationsubtracted=kTRUE, Bool_t UnsetCorrelatedErrors=kFALSE);
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2 void CorrectForEfficiencyBeauty(const char *filedata,const char *fileMC, const char *fileMCbg);
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3 TList *GetResults(const Char_t *testfile,const Char_t *plus="");
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4 TList *GetQA(const Char_t *testfile,const Char_t *plus="");
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5 TObject* GetSpectrum(AliCFContainer *c, Int_t step);
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6 THnSparseF* GetHadronEffbyIPcut(TList *hfeqa);
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7 void CorrectFromTheWidth(TH1D *h1);
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9 void CorrectForEfficiencypptrd(const char *filedata,const char *fileMC,const char *NameList,Bool_t withtrd, Float_t CorrType, Int_t conf, Bool_t smoothing, Bool_t hadroncontaminationsubtracted, Bool_t UnsetCorrelatedErrors) {
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11 ///////////////////////////////////////////////////////////////////////////////////////////////////////
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12 // Will produce finalSpectrum.root with results inside
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13 // TGraphErrors UnfoldingCorrectedSpectrum -> unfolding procedure (doesn't work in 2D with trunk)
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14 // TGraphErrors AlltogetherSpectrum -> corrected spectrum with other method
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15 // TH1D RatioUnfoldingAlltogetherSpectrum
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16 // THnSparseF UnfoldingCorrectedNotNormalizedSpectrum -> unfolding procedure not yet normalized
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17 // AliCFDataGrid AlltogetherCorrectedNotNormalizedSpectrum -> other method not yet normalized
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19 // NameList - possible extension for the full name of the data and MC TLists (e.g. "_PID2" for HFE_Results_PID2)
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20 // CorrType - 0 use fixed TPC PID 0.5
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21 // 1 use TPC PID efficiency from V0s
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23 // Conf - TRD efficiency
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24 // double TRDeffs[5] = {0.7,0.8,0.9,0.75,0.85};
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25 // conf = 2, TRDeff = 0.8...
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26 // (Only relevant for withtrd = kTRUE)
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28 // f/ smoothing kFALSE
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30 // g/ Flag for hadron contamination subtraction
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31 // kTRUE means we subtract the hadron contamination
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34 ///////////////////////////////////////////////////////////////////////////////////////////////////////
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36 double TRDeffs[5] = {0.7,0.8,0.9,0.75,0.85};
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38 gStyle->SetPalette(1);
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39 gStyle->SetOptStat(1111);
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40 gStyle->SetPadBorderMode(0);
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41 gStyle->SetCanvasColor(10);
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42 gStyle->SetPadLeftMargin(0.13);
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43 gStyle->SetPadRightMargin(0.13);
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46 printf("Wrong argument for the type of correction, it is maybe missing, or it has to be <=2!!! \n");
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50 /////////////////////
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52 /////////////////////
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54 printf("Get results for data \n");
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55 TList *resultsdata = GetResults(filedata,NameList);
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57 printf("No output objects for data: Calculation will terminate here\n");
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61 ///////////////////////////////////////////////////////////
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62 // Event container for the normalization to CINB1
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63 // Take the number of events as function of z and number of contributors
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64 // For those without primary vertex from tracks, take the fraction in the z range from MC
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65 // For 10cm: LHC10f6a (88.0756%), LHC10f6 (86.7461%)
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66 ////////////////////////////////////////////////////////////
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67 resultsdata->Print();
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69 AliCFContainer *containerdata = (AliCFContainer *) resultsdata->FindObject("eventContainer");
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70 if(!containerdata) {
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71 printf("No container \n");
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74 AliCFDataGrid *dataGrid = (AliCFDataGrid *) GetSpectrum(containerdata,AliHFEcuts::kEventStepZRange);
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75 //dataGrid->PrintBinLimits();
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76 dataGrid->PrintNBins();
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79 TH2D *spectrum_zrange = (TH2D *) dataGrid->Project(0,3);
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80 TAxis *axis_0 = spectrum_zrange->GetXaxis();
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81 TAxis *axis_1 = spectrum_zrange->GetYaxis();
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82 printf("Number of bins in x %d and in y %d\n",axis_0->GetNbins(),axis_1->GetNbins());
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83 TH1D *spectrum1Da = (TH1D *) spectrum_zrange->ProjectionX("bin0",1,1);
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84 TH1D *spectrum1Db = (TH1D *) spectrum_zrange->ProjectionX("bin>0",2,12);
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85 TH1D *spectrum1Dc = (TH1D *) spectrum_zrange->ProjectionX("total");
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86 Double_t nbinbin0 = spectrum1Da->Integral();
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87 Double_t nbinnobin0 = spectrum1Db->Integral();
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88 Double_t nbintotal = spectrum1Dc->Integral();
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90 //TCanvas *c1teste = new TCanvas("eventcontainertest","eventcontainertest",800,800);
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92 //spectrum_zrange->Draw("colz");
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95 Float_t numberofentries = nbinnobin0+nbinbin0*0.880756;
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96 printf("Number in bin0 %f, number out %f, total %f, normalized %f\n",nbinbin0,nbinnobin0,nbintotal,numberofentries);
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98 //////////////////////////////
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100 ///////////////////////////////
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102 printf("Get results for MC \n");
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103 TList *resultsmc = GetResults(fileMC,NameList);
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105 printf("No output objects for mc: Calculation will terminate here\n");
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109 AliHFEcontainer *datahfecontainer = (AliHFEcontainer *) resultsdata->FindObject("trackContainer");
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110 if(!datahfecontainer) {
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111 printf("No container for data \n");
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114 AliCFContainer *sumcontainer = datahfecontainer->GetCFContainer("recTrackContReco");
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116 ////////////////////////////////////////////
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117 //Plot raw spectrum for TPC TOF scenario
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118 ////////////////////////////////////////////
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119 AliCFDataGrid *dataGrida = 0x0;
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120 if(!withtrd) dataGrida = (AliCFDataGrid *) GetSpectrum(sumcontainer,AliHFEcuts::kStepHFEcutsTRD + 2);
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121 else dataGrida = (AliCFDataGrid *) GetSpectrum(sumcontainer,AliHFEcuts::kStepHFEcutsTRD + 3);
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123 TH1D *spectrumpt = (TH1D *) dataGrida->Project(0);
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124 CorrectFromTheWidth(spectrumpt);
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126 TH1D *total = new TH1D("total","",1,0.3,10.3);
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127 total->SetMaximum(1.0e+07);
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128 total->SetMinimum(1000);
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129 total->SetXTitle("p_{T} [GeV/c]");
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130 total->SetYTitle("dN/dp_{T}[GeV/c]^{-1}");
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131 total->SetTitleOffset(1.5,"Y");
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132 //total->Scale(0.9);
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133 total->GetXaxis()->SetRangeUser(0.38,10.3);
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136 TCanvas *c1test = new TCanvas("rawspectrum","rawspectrum",800,800);
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138 gPad->SetLeftMargin(0.13);
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141 //gPad->SetGridx();
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142 //gPad->SetGridy();
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143 gPad->SetFillColor(10);
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144 gPad->SetFrameFillColor(10);
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145 gStyle->SetOptStat(0);
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146 gStyle->SetOptFit(1111);
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147 gStyle->SetOptTitle(0);
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148 total->SetStats(0);
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149 spectrumpt->SetStats(0);
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151 spectrumpt->Draw("same");
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152 TPaveText* t1=new TPaveText(0.49,0.45,0.79,0.52,"NDC");
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153 t1->SetFillStyle(0);
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154 t1->SetBorderSize(0);
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155 t1->AddText(0.,0.,"pp, #sqrt{s} = 7 TeV");
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156 t1->SetTextColor(kRed);
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157 //t1->SetTextSize(20);
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158 t1->SetTextFont(42);
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160 TPaveText* t2=new TPaveText(0.49,0.35,0.79,0.42,"NDC");
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161 t2->SetFillStyle(0);
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162 t2->SetBorderSize(0);
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163 t2->AddText(0.,0.,"L = 2.6 nb^{-1}");
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164 t2->SetTextColor(kRed);
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165 //t1->SetTextSize(20);
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166 t2->SetTextFont(42);
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168 TPaveText* t3=new TPaveText(0.49,0.35,0.79,0.42,"NDC");
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169 t3->SetFillStyle(0);
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170 t3->SetBorderSize(0);
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171 t3->AddText(0.,0.,"|#eta| < 0.8");
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172 t3->SetTextColor(kRed);
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173 //t1->SetTextSize(20);
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174 t3->SetTextFont(42);
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177 /////////////////////////////
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178 // Check number of events
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179 /////////////////////////////
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182 Int_t numberOfEventsafterallcuts = (Int_t) datahfecontainer->GetNumberOfEvents();
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184 printf("Number of events not corrected %d\n",numberOfEventsafterallcuts);
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185 printf("Number of events corrected %f\n",numberofentries);
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187 AliHFEcontainer *mchfecontainer = (AliHFEcontainer *) resultsmc->FindObject("trackContainer");
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188 if(!mchfecontainer) {
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189 printf("No mc container \n");
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193 printf("Find the container V0\n");
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194 AliHFEcontainer *containerhfeV0 = (AliHFEcontainer *) resultsdata->FindObject("containerV0");
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195 if(!containerhfeV0) {
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196 printf("No hfe container \n");
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204 AliHFEspectrum *spectrum = new AliHFEspectrum("HFEspectrum");
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205 spectrum->SetNbDimensions(1);
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206 // If you want to correct positive (0) or negative (1) separately
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207 //spectrum->SetChargeChoosen(0);
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208 spectrum->SetSmoothing(smoothing);
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209 spectrum->SetUnSetCorrelatedErrors(UnsetCorrelatedErrors);
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210 spectrum->SetDebugLevel(1);
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211 spectrum->SetNumberOfEvents((Int_t)numberofentries);
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212 spectrum->SetDumpToFile(kTRUE);
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213 // True step in MC (events in range +- 10 cm and no pile up)
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214 spectrum->SetMCTruthStep(AliHFEcuts::kStepMCGeneratedZOutNoPileUpCentralityFine);
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216 // Step where we correct from MC (tracking + TOF)
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217 spectrum->SetMCEffStep(AliHFEcuts::kNcutStepsMCTrack + AliHFEcuts::kStepHFEcutsTRD + 1);
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218 printf("!!! Step we correct with MC %d\n!!!",AliHFEcuts::kNcutStepsMCTrack + AliHFEcuts::kStepHFEcutsTRD + 1);
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221 // Step from data we correct for
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222 //////////****************************//////////////////////////////
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223 if(withtrd) spectrum->SetStepToCorrect(AliHFEcuts::kStepHFEcutsTRD + 3);
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224 else spectrum->SetStepToCorrect(AliHFEcuts::kStepHFEcutsTRD + 2);
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225 //////////****************************//////////////////////////////
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227 // Steps to be corrected with V0
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228 if (CorrType == 1){
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229 printf("\n This time we correct with PID efficiency from V0s !!! \n");
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231 spectrum->SetStepBeforeCutsV0(AliHFEcuts::kStepHFEcutsTRD + 2);
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232 spectrum->SetStepAfterCutsV0(AliHFEcuts::kStepHFEcutsTRD + 3);
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235 spectrum->SetStepBeforeCutsV0(AliHFEcuts::kStepHFEcutsTRD + 1);
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236 spectrum->SetStepAfterCutsV0(AliHFEcuts::kStepHFEcutsTRD + 2);
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242 Double_t effTPC = 0.5,
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243 effTRD = TRDeffs[conf-1];
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244 printf("effTRD = %f\n", effTRD);
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245 // Place for a correction as an efficiency parametrized as function of pt of pt,eta,phi or p=pt
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246 TF1 *hEfficiency = new TF1("efficiency", "[0]", 0., 20.);
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247 if(withtrd) hEfficiency->SetParameter(0, effTPC*effTRD);
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248 else hEfficiency->SetParameter(0, effTPC);
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249 spectrum->SetEfficiencyFunction(hEfficiency);
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252 // Give everything (data container, mc container and V0 data container)
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253 if (CorrType == 1){
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254 printf("\n This time we correct with PID efficiency from V0s !!! \n");
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255 spectrum->Init(datahfecontainer,mchfecontainer,containerhfeV0);
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258 printf("\n This time we correct with PID efficiency from MC or fixed value !!! \n");
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259 spectrum->Init(datahfecontainer,mchfecontainer);
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262 // kTRUE means subtract hadron background, kFALSE means do not subtract hadron background
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263 spectrum->Correct(hadroncontaminationsubtracted);
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268 //_____________________________________________________________________
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269 void CorrectForEfficiencyBeauty(const char *filedata,const char *fileMC, const char *fileMCbg) {
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271 ///////////////////////////////////////////////////////////////////////////////////////////////////////
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272 // Will produce finalSpectrum.root with results inside
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273 // TGraphErrors UnfoldingCorrectedSpectrum -> unfolding procedure (doesn't work in 2D with trunk)
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274 // TGraphErrors AlltogetherSpectrum -> corrected spectrum with other method
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275 // TH1D RatioUnfoldingAlltogetherSpectrum
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276 // THnSparseF UnfoldingCorrectedNotNormalizedSpectrum -> unfolding procedure not yet normalized
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277 // AliCFDataGrid AlltogetherCorrectedNotNormalizedSpectrum -> other method not yet normalized
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278 ///////////////////////////////////////////////////////////////////////////////////////////////////////
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280 gStyle->SetPalette(1);
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281 gStyle->SetOptStat(1111);
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282 gStyle->SetPadBorderMode(0);
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283 gStyle->SetCanvasColor(10);
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284 gStyle->SetPadLeftMargin(0.13);
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285 gStyle->SetPadRightMargin(0.13);
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287 /////////////////////
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289 /////////////////////
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291 TList *resultsdata = GetResults(filedata,"_PID2");
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292 //TList *resultsdata = GetResults(filedata);
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294 printf("No output objects for data: Calculation will terminate here\n");
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297 ///////////////////////////////////////////////////////////
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298 // Event container for the normalization to CINB1
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299 // Take the number of events as function of z and number of contributors
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300 // For those without primary vertex from tracks, take the fraction in the z range from MC
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301 // For 10cm: LHC10f6a (88.0756%), LHC10f6 (86.7461%)
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302 ////////////////////////////////////////////////////////////
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304 AliCFContainer *containerdata = (AliCFContainer *) resultsdata->FindObject("eventContainer");
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305 if(!containerdata) {
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306 printf("No container \n");
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309 AliCFDataGrid *dataGrid = (AliCFDataGrid *) GetSpectrum(containerdata,AliHFEcuts::kEventStepZRange);
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310 TH2D *spectrum_zrange = (TH2D *) dataGrid->Project(0,2);
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311 TH1D *spectrum1Da = (TH1D *) spectrum_zrange->ProjectionX("bin0",1,1);
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312 TH1D *spectrum1Db = (TH1D *) spectrum_zrange->ProjectionX("bin>0",2,12);
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313 TH1D *spectrum1Dc = (TH1D *) spectrum_zrange->ProjectionX("total");
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314 Double_t nbinbin0 = spectrum1Da->Integral();
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315 Double_t nbinnobin0 = spectrum1Db->Integral();
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316 Double_t nbintotal = spectrum1Dc->Integral();
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318 Float_t numberofentries = nbinnobin0+nbinbin0*0.880756;
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319 printf("Number in bin0 %f, number out %f, total %f, normalized %f\n",nbinbin0,nbinnobin0,nbintotal,numberofentries);
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322 AliHFEcontainer *datahfecontainer = (AliHFEcontainer *) resultsdata->FindObject("trackContainer");
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323 if(!datahfecontainer) {
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324 printf("No container for data \n");
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329 //////////////////////////////
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330 // Check MC # of events
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331 ///////////////////////////////
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333 TList *resultsmc = GetResults(fileMC,"_PID2");
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335 printf("No output objects for mc: Calculation will terminate here\n");
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339 AliCFContainer *containermc = (AliCFContainer *) resultsmc->FindObject("eventContainer");
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341 printf("No container \n");
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344 AliCFDataGrid *mcGrid = (AliCFDataGrid *) GetSpectrum(containermc,AliHFEcuts::kEventStepZRange);
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345 TH2D *spectrum_zrangemc = (TH2D *) mcGrid->Project(0,2);
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346 TH1D *spectrum1Damc = (TH1D *) spectrum_zrangemc->ProjectionX("bin0",1,1);
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347 TH1D *spectrum1Dbmc = (TH1D *) spectrum_zrangemc->ProjectionX("bin>0",2,12);
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348 TH1D *spectrum1Dcmc = (TH1D *) spectrum_zrangemc->ProjectionX("total");
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349 Double_t nbinbin0mc = spectrum1Damc->Integral();
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350 Double_t nbinnobin0mc = spectrum1Dbmc->Integral();
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351 Double_t nbintotalmc = spectrum1Dcmc->Integral();
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353 Float_t numberofentriesmc = nbinnobin0mc+nbinbin0mc*0.880756;
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354 printf("MC: Number in bin0 %f, number out %f, total %f, normalized %f\n",nbinbin0mc,nbinnobin0mc,nbintotalmc,numberofentriesmc);
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358 /////////////////////////////
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359 // Check number of events
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360 /////////////////////////////
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362 Int_t numberOfEventsafterallcuts = (Int_t) datahfecontainer->GetNumberOfEvents();
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364 printf("Number of events not corrected %d\n",numberOfEventsafterallcuts);
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365 printf("Number of events corrected %f\n",numberofentries);
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367 AliHFEcontainer *mchfecontainer = (AliHFEcontainer *) resultsmc->FindObject("trackContainer");
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368 if(!mchfecontainer) {
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369 printf("No mc container \n");
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373 printf("Find the container V0\n");
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374 AliHFEcontainer *containerhfeV0 = (AliHFEcontainer *) resultsdata->FindObject("containerV0");
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375 if(!containerhfeV0) {
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376 printf("No hfe container \n");
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380 // nonHFE backgrounds
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381 TList *resultsmcbg = GetResults(fileMCbg,"_PID2");
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383 printf("No output objects for mc: Calculation will terminate here\n"); return;
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385 AliHFEcontainer *mcbghfecontainer = (AliHFEcontainer *) resultsmcbg->FindObject("trackContainer");
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386 if(!mcbghfecontainer) {
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387 printf("No mc container \n");
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391 AliCFContainer *containermcbg = (AliCFContainer *) resultsmcbg->FindObject("eventContainer");
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392 if(!containermcbg) {
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393 printf("No container \n");
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397 AliCFDataGrid *mcbgGrid = (AliCFDataGrid *) GetSpectrum(containermcbg,AliHFEcuts::kEventStepZRange);
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398 TH2D *spectrum_zrangemcbg = (TH2D *) mcbgGrid->Project(0,2);
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399 TH1D *spectrum1Damcbg = (TH1D *) spectrum_zrangemcbg->ProjectionX("bin0",1,1);
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400 TH1D *spectrum1Dbmcbg = (TH1D *) spectrum_zrangemcbg->ProjectionX("bin>0",2,12);
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401 TH1D *spectrum1Dcmcbg = (TH1D *) spectrum_zrangemcbg->ProjectionX("total");
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402 Double_t nbinbin0mcbg = spectrum1Damcbg->Integral();
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403 Double_t nbinnobin0mcbg = spectrum1Dbmcbg->Integral();
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404 Double_t nbintotalmcbg = spectrum1Dcmcbg->Integral();
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406 Float_t numberofentriesmcbg = nbinnobin0mcbg+nbinbin0mcbg*0.880756;
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407 printf("MCbg: Number in bin0 %f, number out %f, total %f, normalized %f\n",nbinbin0mcbg,nbinnobin0mcbg,nbintotalmcbg,numberofentriesmcbg);
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410 // hadron contamination after IP cuts
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411 TList *hfeqa = GetQA(fileMC,"_PID2");
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412 THnSparseF* hsHadronEffbyIPcut = (THnSparseF* )GetHadronEffbyIPcut(hfeqa);
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418 AliHFEspectrum *spectrum = new AliHFEspectrum("HFEspectrum");
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420 spectrum->SetBeautyAnalysis();
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421 // Enable background subtraction
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422 spectrum->EnableIPanaHadronBgSubtract();
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423 spectrum->EnableIPanaCharmBgSubtract();
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424 spectrum->EnableIPanaConversionBgSubtract();
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425 spectrum->EnableIPanaNonHFEBgSubtract();
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426 //spectrum->SetNonHFEBackground2ndMethod();
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428 spectrum->SetNbDimensions(1);
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429 // If you want to correct positive (0) or negative (1) separately
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430 //spectrum->SetChargeChoosen(0);
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431 spectrum->SetDebugLevel(1);
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432 spectrum->SetNumberOfEvents((Int_t)numberofentries);
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433 spectrum->SetNumberOfMCEvents((Int_t)numberofentriesmc);
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434 spectrum->SetNumberOfMC2Events((Int_t)numberofentriesmcbg);
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435 spectrum->SetDumpToFile(smoothing);
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436 // True step in MC (events in range +- 10 cm and no pile up)
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437 spectrum->SetMCTruthStep(AliHFEcuts::kStepMCGeneratedZOutNoPileUpCentralityFine);
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438 // Step where we correct from MC (tracking + TOF)
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439 spectrum->SetMCEffStep(AliHFEcuts::kNcutStepsMCTrack + AliHFEcuts::kStepHFEcutsTRD + 1);
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440 // Step from data we correct for
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441 spectrum->SetStepToCorrect(AliHFEcuts::kStepHFEcutsTRD + 3); // +3 = tracking + TOF + TPC + IPcut
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442 // Steps to be corrected with V0 (TPC PID only)
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443 spectrum->SetStepBeforeCutsV0(AliHFEcuts::kStepHFEcutsTRD + 1);
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444 spectrum->SetStepAfterCutsV0(AliHFEcuts::kStepHFEcutsTRD + 2);
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446 spectrum->SetHadronEffbyIPcut(hsHadronEffbyIPcut);
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447 // Give everything (data container, mc container and V0 data container)
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448 spectrum->Init(datahfecontainer,mchfecontainer,containerhfeV0,mcbghfecontainer);
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450 // kTRUE means subtract hadron background, kFALSE means do not subtract hadron background
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451 spectrum->CorrectBeauty(kTRUE);
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455 //_____________________________________________________________________
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456 TList *GetResults(const Char_t *testfile,const Char_t *plus){
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460 TFile *f = TFile::Open(testfile);
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461 if(!f || f->IsZombie()){
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462 printf("File not readable\n");
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465 TString name(plus);
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466 printf("Name of TList %s\n",(const char*)name);
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467 TList *l = dynamic_cast<TList *>(f->Get((const char*)name));
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469 printf("Results list was not found\n");
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470 f->Close(); delete f;
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473 TList *returnlist = dynamic_cast<TList *>(l->Clone());
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474 f->Close(); delete f;
\r
478 //_____________________________________________________________________
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479 TList *GetQA(const Char_t *testfile,const Char_t *plus){
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483 TFile *f = TFile::Open(testfile);
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484 if(!f || f->IsZombie()){
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485 printf("File not readable\n");
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488 TString name("HFE_QA");
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490 printf("Name of TList %s\n",(const char*)name);
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491 TList *l = dynamic_cast<TList *>(f->Get((const char*)name));
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493 printf("QA list was not found\n");
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494 f->Close(); delete f;
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497 TList *returnlist = dynamic_cast<TList *>(l->Clone());
\r
498 f->Close(); delete f;
\r
502 //_____________________________________________________________________
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503 THnSparseF* GetHadronEffbyIPcut(TList *hfeqa){
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506 // get hadron reduction factors due to the IP cuts
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507 TList* tl=(TList*)hfeqa->FindObject("list_TaskQA");
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508 TH1F* hbefore=(TH1F*)tl->FindObject("hadronsBeforeIPcut");
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509 TH1F* hafter=(TH1F*)tl->FindObject("hadronsAfterIPcut");
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510 TH1F* hreduction= (TH1F*)hafter->Clone("hreduction");
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513 hreduction->Sumw2();
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514 hreduction->Divide(hbefore);
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516 Double_t* binEdges[0];
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517 Int_t hnBin = hreduction->GetNbinsX();
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518 Int_t nBin[1] = {hnBin};
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520 for(int i=0; i<nBin[0]; i++){
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521 binEdges[0][i] = hreduction->GetBinLowEdge(i+1);
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523 binEdges[0][nBin[0]] = hreduction->GetBinLowEdge(nBin[0]) + hreduction->GetBinWidth(nBin[0]);
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525 THnSparseF* hsreduction = new THnSparseF("hadroncontamin", "hadroncontamin; pt[GeV/c]", 1, nBin);
\r
526 hsreduction->SetBinEdges(0, binEdges[0]);
\r
530 for(int i=0; i<nBin[0]; i++){
\r
531 dataE[0]=hreduction->GetBinCenter(i+1);
\r
532 yval=hreduction->GetBinContent(i+1);
\r
533 hsreduction->Fill(dataE,yval);
\r
537 ibins = new Int_t[nBin[0] + 1];
\r
538 hsreduction->SetBinError(ibins,0);
\r
541 return hsreduction;
\r
544 //_________________________________________________________________________
\r
545 TObject* GetSpectrum(AliCFContainer *c, Int_t step) {
\r
546 AliCFDataGrid* data = new AliCFDataGrid("data","",*c,step);
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547 //data->SetMeasured(step);
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550 //___________________________________________________________________________
\r
551 void CorrectFromTheWidth(TH1D *h1) {
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553 // Correct from the width of the bins --> dN/dp_{T} (GeV/c)^{-1}
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556 TAxis *axis = h1->GetXaxis();
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557 Int_t nbinX = h1->GetNbinsX();
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559 for(Int_t i = 1; i <= nbinX; i++) {
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561 Double_t width = axis->GetBinWidth(i);
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562 Double_t content = h1->GetBinContent(i);
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563 Double_t error = h1->GetBinError(i);
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564 h1->SetBinContent(i,content/width);
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565 h1->SetBinError(i,error/width);
\r