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//
// G4 Model: Charge and strangness exchange based on G4LightMedia model
//           28 May 2006 V.Ivanchenko
//
// Modified:
// 25-Jul-06 V.Ivanchenko add 19 MeV low energy, below which S-wave is sampled
//
//

#ifndef G4ChargeExchange_h
#define G4ChargeExchange_h 1

// Class Description
// Final state production model for hadron nuclear coherent charge exchange;
// Class Description - End

#include "globals.hh"
#include "G4HadronicInteraction.hh"
#include "G4HadProjectile.hh"
#include "G4Nucleus.hh"

class G4ParticleDefinition;

class G4ChargeExchange : public G4HadronicInteraction
{
public:

  explicit G4ChargeExchange();

  ~G4ChargeExchange() override;
  G4ChargeExchange( const G4ChargeExchange &right ) = delete;
  const G4ChargeExchange & operator=( const G4ChargeExchange &right ) = delete;
  G4bool operator==( const G4ChargeExchange &right ) const = delete;
  G4bool operator!=( const G4ChargeExchange &right ) const = delete;

  G4HadFinalState* ApplyYourself(const G4HadProjectile& aTrack,
                                 G4Nucleus& targetNucleus) override;

  void SetLowestEnergyLimit(G4double value);

  G4double SampleT(G4double p, G4int A);

private:

  G4ParticleDefinition* theProton;
  G4ParticleDefinition* theNeutron;
  G4ParticleDefinition* theAProton;
  G4ParticleDefinition* theANeutron;
  G4ParticleDefinition* thePiPlus;
  G4ParticleDefinition* thePiMinus;
  G4ParticleDefinition* thePiZero;
  G4ParticleDefinition* theKPlus;
  G4ParticleDefinition* theKMinus;
  G4ParticleDefinition* theK0S;
  G4ParticleDefinition* theK0L;
  G4ParticleDefinition* theL;
  G4ParticleDefinition* theAntiL;
  G4ParticleDefinition* theSPlus;
  G4ParticleDefinition* theASPlus;
  G4ParticleDefinition* theSMinus;
  G4ParticleDefinition* theASMinus;
  G4ParticleDefinition* theS0;
  G4ParticleDefinition* theAS0;
  G4ParticleDefinition* theXiMinus;
  G4ParticleDefinition* theXi0;
  G4ParticleDefinition* theAXiMinus;
  G4ParticleDefinition* theAXi0;
  G4ParticleDefinition* theOmega;
  G4ParticleDefinition* theAOmega;
  G4ParticleDefinition* theD;
  G4ParticleDefinition* theT;
  G4ParticleDefinition* theA;
  G4ParticleDefinition* theHe3;

  G4double lowestEnergyLimit;

  G4int secID;  // Creator model ID for the secondaries created by this model
};

inline void G4ChargeExchange::SetLowestEnergyLimit(G4double value)
{
  lowestEnergyLimit = value;
}

#endif