Int_t GetProlongation(Double_t xk, Double_t &y, Double_t &z);
Bool_t Intersect(Double_t pnt[3], Double_t norm[3], Double_t bz) const; //HMPID method moved from AliExternalTrackParam
Bool_t Intersect(AliHMPIDtrack *pTrk,Double_t pnt[3], Double_t norm[3]) ; //just for test
- Double_t GetBz() const;
Bool_t Update(const AliHMPIDCluster *pClu, Double_t chi2, Int_t index);
protected: