private:
TH2D *fYPt; // Rapidity vs. Pt monitor
+ TH2D *fYPhi; // Rapidity cs. Phi monitor
+ TH2D *fPtPhi; // Pt vs. Phi monitor
+ TH2D *fEtaPhi; // Pseudorapidity vs. Phi monitor
+ TH2D *fEtaPt; // Pseudorapidity vs. Pt monitor
float fMass; // Mass hypothesis
};