G4BoldyshevTripletModel.hh

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// Author: G.Depaola & F.Longo

#ifndef G4BoldyshevTripletModel_h
#define G4BoldyshevTripletModel_h 1

#include "G4VEmModel.hh"
#include "G4Electron.hh"
#include "G4Positron.hh"
#include "G4ParticleChangeForGamma.hh"
#include "G4LPhysicsFreeVector.hh"
#include "G4ProductionCutsTable.hh"
#include "G4Log.hh"

class G4BoldyshevTripletModel : public G4VEmModel
{

public:
  
  explicit G4BoldyshevTripletModel(const G4ParticleDefinition* p = nullptr, 
           const G4String& nam = "BoldyshevTripletConversion");
  
  virtual ~G4BoldyshevTripletModel();
  
  virtual void Initialise(const G4ParticleDefinition*, 
                          const G4DataVector&);

  virtual void InitialiseForElement(const G4ParticleDefinition*, G4int Z);

  virtual G4double ComputeCrossSectionPerAtom(
                                const G4ParticleDefinition*,
                                      G4double kinEnergy, 
                                      G4double Z, 
                                      G4double A=0., 
                                      G4double cut=0.,
                                      G4double emax=DBL_MAX);

  virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
         const G4MaterialCutsCouple*,
         const G4DynamicParticle*,
               G4double tmin,
               G4double maxEnergy);

  virtual G4double MinPrimaryEnergy(const G4Material*,
            const G4ParticleDefinition*,
            G4double);

private:

  void ReadData(size_t Z, const char* path = nullptr);

  G4double ScreenFunction1(G4double screenVariable);
  G4double ScreenFunction2(G4double screenVariable);

  G4BoldyshevTripletModel & operator=(const  G4BoldyshevTripletModel &right) = delete;
  G4BoldyshevTripletModel(const  G4BoldyshevTripletModel&) = delete;

  G4int verboseLevel;

  G4double lowEnergyLimit;  
  G4double smallEnergy;
  G4double energyThreshold;
  G4double momentumThreshold_c;
  G4double xb;
  G4double xn;
  
  static G4int maxZ;
  static G4LPhysicsFreeVector* data[100]; // 100 because Z range is 1-99
  
  G4ParticleChangeForGamma* fParticleChange;

};

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#endif