+
+ // do correction with the efficiency calculated from HIJING (for two particle correlations)
+ if(iAnalysisType == kEta && etaWindow > 0 && correctWithEfficiency){
+
+ TF1 *fPP = new TF1("fPP","pol2",0,1.6); // phase space factor + efficiency for ++
+ fPP->SetParameters(0.143919,-0.0521531,-0.0234203);
+ TF1 *fNN = new TF1("fNN","pol2",0,1.6); // phase space factor + efficiency for --
+ fNN->SetParameters(0.14103,-0.0516936,-0.0226052);
+ TF1 *fPN = new TF1("fPN","pol2",0,1.6); // phase space factor + efficiency for +-
+ fPN->SetParameters(0.142484,-0.0519515,-0.0229989);
+
+ for(Int_t iBin = 0; iBin < gHistBalanceFunctionHistogram->GetNbinsX(); iBin++){
+ hTemp1->SetBinContent(iBin+1,hTemp1->GetBinContent(iBin+1)/fPN->Eval(hTemp1->GetBinCenter(iBin+1)));
+ hTemp2->SetBinContent(iBin+1,hTemp2->GetBinContent(iBin+1)/fPN->Eval(hTemp1->GetBinCenter(iBin+1)));
+ hTemp3->SetBinContent(iBin+1,hTemp3->GetBinContent(iBin+1)/fNN->Eval(hTemp1->GetBinCenter(iBin+1)));
+ hTemp4->SetBinContent(iBin+1,hTemp4->GetBinContent(iBin+1)/fPP->Eval(hTemp1->GetBinCenter(iBin+1)));
+ }
+ }