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//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
//
// File name:     G4MuPairProduction
//
// Author:        Laszlo Urban
//
// Creation date: 30.05.1998
//
// Modifications:

// 10-02-00 modifications , new e.m. structure, L.Urban
// 10-08-01 new methods Store/Retrieve PhysicsTable (mma)
// 29-10-01 all static functions no more inlined (mma)
// 10-05-02 V.Ivanchenko update to new design
// 26-12-02 secondary production moved to derived classes (VI)
// 27-01-03 Make models region aware (V.Ivanchenko)
// 05-02-03 Fix compilation warnings (V.Ivanchenko)
// 13-02-03 SubCutoff regime is assigned to a region (V.Ivanchenko)
// 08-08-03 STD substitute standard  (V.Ivanchenko)
// 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko)
// 21-01-04 Migrade to G4ParticleChangeForLoss (V.Ivanchenko)
// 28-04-04 Fix minor bug in energy balance (V.Ivanchenko)
// 17-08-04 Rename the process "Mu" -> "mu" (V.Ivanchenko)
// 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko)
// 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
//
// Class Description:
//
// This class manages the PairProduction process for muons.
// it inherites from G4VContinuousDiscreteProcess via G4VEnergyLossProcess.
//

// -------------------------------------------------------------------
//

#ifndef G4MuPairProduction_h
#define G4MuPairProduction_h 1

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

#include "globals.hh"
#include "G4VEnergyLossProcess.hh"

class G4MuPairProduction : public G4VEnergyLossProcess
{
public:

  explicit G4MuPairProduction(const G4String& processName = "muPairProd");

  ~G4MuPairProduction() override = default;

  G4bool IsApplicable(const G4ParticleDefinition& p) override;

  G4double MinPrimaryEnergy(const G4ParticleDefinition* p,
			    const G4Material*, G4double cut) override;

  inline void SetLowestKineticEnergy(G4double e);

  // print description in html
  void ProcessDescription(std::ostream&) const override;

  G4MuPairProduction & operator=(const G4MuPairProduction &right) = delete;
  G4MuPairProduction(const G4MuPairProduction&) = delete;

protected:

  // Print out of the class parameters
  void StreamProcessInfo(std::ostream& outFile) const override;

  void InitialiseEnergyLossProcess(const G4ParticleDefinition*,
			           const G4ParticleDefinition*) override;

  const G4ParticleDefinition* theParticle = nullptr;
  G4double                    lowestKinEnergy;
  G4bool                      isInitialised = false;

};

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....

inline void G4MuPairProduction::SetLowestKineticEnergy(G4double e) 
{
  lowestKinEnergy = e;
}

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

#endif
