virtual void GetGlobal(const AliRecPoint *p, TVector3 &pos, TMatrix &mat) const;
virtual void GetGlobal(const AliRecPoint *p, TVector3 &pos) const;
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+ virtual Bool_t Impact(const TParticle * particle) const {return kTRUE;}
static Double_t GetAlpha() { return 2 * 3.14159265358979323846 / fgkNsect; };
protected: