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// $Id: G4WHadronElasticProcess.hh,v 1.2 2009/09/22 17:35:07 vnivanch Exp $
// GEANT4 tag $Name: geant4-09-03-ref-09 $
//
// Geant4 Hadron Elastic Scattering Process -- header file
// 
// Created 21 April 2006 V.Ivanchenko
//  
// Modified:
// 26.09.06 V.Ivanchenko add lowestEnergy
//

// Class Description
// Process for hadron nuclear elastic scattering using optimal 
// combination of Geant4 models
// Class Description - End

#ifndef G4WHadronElasticProcess_h
#define G4WHadronElasticProcess_h 1
 
#include "globals.hh"
#include "G4HadronicProcess.hh"
#include "G4Nucleus.hh"

class G4VQCrossSection;
class G4ParticleDefinition;
class G4CrossSectionDataStore;

class G4WHadronElasticProcess : public G4HadronicProcess
{
public:

  G4WHadronElasticProcess(const G4String& procName = "hadElastic");

  virtual ~G4WHadronElasticProcess();
 
  virtual G4VParticleChange* PostStepDoIt(const G4Track& aTrack, 
					  const G4Step& aStep);

  virtual G4bool IsApplicable(const G4ParticleDefinition& aParticleType);

  inline void SetLowestEnergy(G4double);

  inline void SetLowestEnergyNeutron(G4double);

private:

  const G4ParticleDefinition* theNeutron;

  G4Nucleus       targetNucleus;

  G4double        lowestEnergy;
  G4double        lowestEnergyNeutron;
};

inline void 
G4WHadronElasticProcess::SetLowestEnergy(G4double val)
{
  lowestEnergy = val;
}

inline void 
G4WHadronElasticProcess::SetLowestEnergyNeutron(G4double val)
{
  lowestEnergyNeutron = val;
}


#endif
