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// $Id$

#ifndef G4ElasticHNScattering_h
#define G4ElasticHNScattering_h 1
// ------------------------------------------------------------
//                    GEANT 4 class header file
//
//      ---------------- G4ElasticHNScattering --------------
//                   by V. Uzhinsky, March 2008.
//             elastic scattering used by Fritiof model
//	           Take a projectile and a target
//	           scatter the projectile and target
// ------------------------------------------------------------

#include "globals.hh"
class G4VSplitableHadron;
class G4ExcitedString;
#include "G4FTFParameters.hh"
#include "G4ThreeVector.hh"

class G4ElasticHNScattering 
{

  public:

      G4ElasticHNScattering();
      virtual ~G4ElasticHNScattering();

      virtual G4bool ElasticScattering (G4VSplitableHadron *aPartner, 
                                        G4VSplitableHadron * bPartner,
                                        G4FTFParameters *theParameters) const;
      
  private:

      G4ElasticHNScattering(const G4ElasticHNScattering &right);
      
      G4ThreeVector GaussianPt(G4double  AveragePt2, G4double maxPtSquare) const;
      
      const G4ElasticHNScattering & operator=(const G4ElasticHNScattering &right);
      int operator==(const G4ElasticHNScattering &right) const;
      int operator!=(const G4ElasticHNScattering &right) const;


};

#endif