virtual void AddHit( Int_t, Int_t, Int_t, Int_t, Float_t*) {
// useless since there are no hits
Fatal("AddHit", "not to be used with v0") ;
virtual void AddHit( Int_t, Int_t, Int_t, Int_t, Float_t*) {
// useless since there are no hits
Fatal("AddHit", "not to be used with v0") ;