TH2F **fHistoMotherEtaPtAlpha; //! array of histograms with invariant mass cut of 0.45 && pi0cand->M() < 0.65, pt, alpha
TH2F **fHistoMotherPi0PtOpenAngle; //! array of histograms with invariant mass cut of 0.05 && pi0cand->M() < 0.17, pt, openAngle
TH2F **fHistoMotherEtaPtOpenAngle; //! array of histograms with invariant mass cut of 0.45 && pi0cand->M() < 0.65, pt, openAngle
+ TH2F **fHistoMotherPi0ConvPhotonEtaPhi; //! array of histograms with invariant mass cut of 0.05 && pi0cand->M() < 0.17 ,eta/phi of conversion photon
+ TH2F **fHistoMotherEtaConvPhotonEtaPhi; //! array of histograms with invariant mass cut of 0.45 && pi0cand->M() < 0.65 ,eta/phi of conversion photon
TH2F **fHistoMotherInvMassECalib; //! array of histogram with signal + BG for same event photon pairs, inv Mass, energy of cluster
TH2F **fHistoMotherInvMassECalibalpha; //! array of histogram with signal + BG for same event photon pairs, inv Mass, energy of cluster, alpha cut 0.1
TTree **fTreeMesonsInvMassPtDcazMinDcazMaxFlag; //! array of trees with dca information for mesons