TH2F *fhZPCvsZPA; //! ZPC vs ZPA;
TH2F *fhZDCCvsZDCCA; //! ZDCC vs ZDCCA
TH2F *fhZNvsZEM; //! ZN vs ZEM;
+ TH2F *fhZNvsZEMwV0M; //! ZN vs ZEM weighted with V0M centr. perc.;
TH2F *fhZDCvsZEM; //! ZDC vs ZEM;
+ TH2F *fhZDCvsZEMwV0M; //! ZDC vs ZEM weighted with V0M centr. perc.;
TH2F *fhZNvsVZERO; //! ZN vs VZERO;
TH2F *fhZDCvsVZERO; //! ZDC vs VZERO;
TH2F *fhZDCvsTracklets; //! ZDC vs N_tracklets;