Float_t GetEta() const { return fRecDecayP.Eta(); }
Float_t GetRadius() const { return fRecDecayV.Perp(); }
Float_t GetPt() const { return fRecDecayP.Perp(); }
+ Float_t GetMomentum() const { return fRecDecayP.Mag(); }
Float_t GetInvMass(Int_t nPdgCode, Int_t pPdgCode) const;
Float_t GetK0sInvMass() const { return GetInvMass(kPiMinus,kPiPlus); }