message: update opening angle cut study
diff: @@ -697,10 +697,13 @@ void AliAnalysisTaskPHOSPi0EtaToGammaGamma::UserCreateOutputObjects()
  }//fIsPHOSTriggerAnalysis ends
  //opening angle cut study
  - TH3F *h3MggvsPt_OA = new TH3F("hMgg_OA","M_{#gamma#gamma} for opening angle;M_{#gamma#gamma} (GeV/c^{2});p_{T} (GeV/c);opening angle #theta (mrad.)" ,180,0,0.72,100,0,100,100,0,100);
  + TH3F *h3MggvsPt_OA = new TH3F("hMgg_OA","M_{#gamma#gamma} for opening angle;M_{#gamma#gamma} (GeV/c^{2});p_{T} (GeV/c);opening angle (mrad.)" ,180,0,0.72,100,0,100,100,0,100);
  h3MggvsPt_OA->Sumw2();
  fOutputContainer->Add(h3MggvsPt_OA);
  + TH3F *h3MixMggvsPt_OA = new TH3F("hMixMgg_OA","M_{#gamma#gamma} for opening angle;M_{#gamma#gamma} (GeV/c^{2});p_{T} (GeV/c);opening angle (mrad.)" ,180,0,0.72,100,0,100,100,0,100);
  + h3MixMggvsPt_OA->Sumw2();
  + fOutputContainer->Add(h3MixMggvsPt_OA);
  if(fIsMC){
  @@ -2029,6 +2032,9 @@ void AliAnalysisTaskPHOSPi0EtaToGammaGamma::FillMixMgg()
  value[1] = pt12;
  value[2] = asym;
  + Double_t oa = TMath::Abs(ph1->Angle(ph2->Vect())) * 1e+3;//rad->mrad
  + FillHistogramTH3(fOutputContainer,"hMixMgg_OA",m12,pt12,oa,weight);
  +
  if(m12 > 0.96) continue;//reduce entry in THnSparse
  FillSparse(fOutputContainer,"hSparseMixMgg",value,weight * 1/trgeff12);
  