// calculates the angular coverage in theta and phi of a
// single crystal in a EMC module
- void ImpactOnEmc(const Double_t theta, const Double_t phi, Int_t & ModuleNumber, Double_t & x, Double_t & z) ;
+ void ImpactOnEmc(const Double_t theta, const Double_t phi, Int_t & ModuleNumber, Double_t & z, Double_t & x) ;
// calculates the impact coordinates of a neutral particle
// emitted in direction theta and phi in ALICE