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//
// GEANT4 Class header file
//
// File name:  G4OrePowellAtRestModel
//
// Author:     I.Semeniouk & D.Bernard
//
// Creation date:  4 Juin 2024
//
// Class Description:
//
// Simple AtRest positron 3-gamma annihilation model.
// Electron of media is assumed to have zero kinetic energy.
// Ortho - Positronium three-photon annihilation by Ore and
// Powell, Phys. Rev. 75 (1949).
// Polarisation set randomly.
//
// -------------------------------------------------------------------
//

#ifndef G4OrePowellAtRestModel_h
#define G4OrePowellAtRestModel_h 1

#include "G4VPositronAtRestModel.hh"

class G4OrePowellAtRestModel : public G4VPositronAtRestModel
{

public:

  G4OrePowellAtRestModel();

  ~G4OrePowellAtRestModel() override = default;

  void SampleSecondaries(std::vector<G4DynamicParticle*>& secParticles,
			 G4double&, const G4Material*) const override;

  void PrintGeneratorInformation() const override;

  G4OrePowellAtRestModel& operator=
  (const  G4OrePowellAtRestModel& right) = delete;
  G4OrePowellAtRestModel(const G4OrePowellAtRestModel&) = delete;
};

#endif