void IsotropicR3(Double_t r, Double_t *pX, Double_t *pY, Double_t *pZ);
void IsotropicR3(Double_t r, TVector3 &pos);
void MomAntiMom(TLorentzVector &mom, Double_t mass, TLorentzVector &antiMom,
Double_t antiMass, Double_t initialMass);
void IsotropicR3(Double_t r, Double_t *pX, Double_t *pY, Double_t *pZ);
void IsotropicR3(Double_t r, TVector3 &pos);
void MomAntiMom(TLorentzVector &mom, Double_t mass, TLorentzVector &antiMom,
Double_t antiMass, Double_t initialMass);