Double_t PsiPair(Double_t MagField)const; //Angle cut w.r.t. to magnetic field
Double_t PhivPair(Double_t MagField)const; //Angle of ee plane w.r.t. to magnetic field
Double_t GetCosPointingAngle(const AliVVertex *primVtx) const;
+ Double_t GetArmAlpha() const;
+ Double_t GetArmPt() const;
+
// internal KF particle
const AliKFParticle& GetKFParticle() const { return fPair; }
const AliKFParticle& GetKFFirstDaughter() const { return fD1; }