FastOpticalPhysics.h

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// Modified for LArG4 by Ben Jones, MIT, Nov 2012
//
// Thisclass is based upon thedefaultGeant4 optical physics constructor.
// However, forfast optical physics inLArSoft:
//
// - The default geant4 scintillation process is swapped for the LArG4 fast
//     scintillation process
//
// - Cerenkov light (still slow) can beenabledor disabled as required
//
// - The default geant4reflection process is swapped for a simpler
//     custom boundary process in LArG4
//
// Parameters relating to the physics in this constructor can be set
// in the Utilities/LArParameters service.
//
//
// ********************************************************************
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// * technical work of the GEANT4 collaboration.                      *
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//
//
// GEANT4 tag $Name:  $
//
//---------------------------------------------------------------------------
//
// ClassName:   FastOpticalPhysics
//
// Author:      V.Ivanchenko 09.11.2005
//
// Modified:
// 05.12.2005 V.Ivanchenko add controlled verbosity
// 23.11.2006 V.Ivanchenko remove mscStepLimit option and improve cout
//
//----------------------------------------------------------------------------
//
// This class provides construction of default EM standard physics
//

#ifndef FastOpticalPhysics_h
#define FastOpticalPhysics_h 1

#include "Geant4/G4String.hh"
#include "Geant4/G4Types.hh"
#include "Geant4/G4VPhysicsConstructor.hh"

#include <memory>

class G4Cerenkov;
class G4OpAbsorption;
class G4OpWLS;
class G4OpRayleigh;

namespace larg4 {

  class OpFastScintillation;
  class OpBoundaryProcessSimple;

  class FastOpticalPhysics : public G4VPhysicsConstructor {
  public:
    FastOpticalPhysics(G4int ver = 0, const G4String& name = "FastOptical");

    void ConstructParticle() override;
    void ConstructProcess() override;

  private:
    G4Cerenkov* fTheCerenkovProcess;
    std::unique_ptr<OpFastScintillation> fTheScintillationProcess;
    G4OpAbsorption* fTheAbsorptionProcess;
    G4OpRayleigh* fTheRayleighScatteringProcess;
    OpBoundaryProcessSimple* fTheBoundaryProcess;
    G4OpWLS* fTheWLSProcess;
  };

}

#endif