AliV0vertex();
AliV0vertex(const AliITStrackV2 &neg, const AliITStrackV2 &pos);
- void ChangeMassHypothesis(Int_t code=kLambda0);
+ Double_t ChangeMassHypothesis(Int_t code=kK0Short);
Int_t GetPdgCode() const {return fPdgCode;}
Double_t GetEffMass() const {return fEffMass;}