G4VEmAngularDistribution.hh

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//
// -------------------------------------------------------------------
//
// GEANT4 Class header file
//
// File name:     G4VEmAngularDistribution
//
// Author:        V. Ivanchenko using design of existing 
//                interface G4VBremAngularDistribution
// 
// Creation date: 13 October 2010
//
// Modifications: 
//
// Class Description: 
//
// Abstract base class for polar angle sampling
//
// Class Description: End 
 
// -------------------------------------------------------------------
//
 
#ifndef G4VEmAngularDistribution_h
#define G4VEmAngularDistribution_h 1
 
#include "globals.hh"
#include "G4ThreeVector.hh"
#include "G4DynamicParticle.hh"
 
class G4Material;
 
class G4VEmAngularDistribution
{
public:
 
  explicit G4VEmAngularDistribution(const G4String& name);
 
  virtual ~G4VEmAngularDistribution();
 
  // Sample direction in global coordinate system,
  // this means for zero scattering angle this direction is the same
  // as the direction of primary 
  virtual G4ThreeVector& SampleDirection(const G4DynamicParticle* dp,
                     G4double finalTotalEnergy,
                     G4int Z,
                     const G4Material*) = 0;
 
  // Sample direction in global coordinate system for given electronic shell,
  // this means for zero scattering angle this direction is the same
  // as the direction of primary 
  virtual G4ThreeVector& SampleDirectionForShell(
                     const G4DynamicParticle* dp,
                     G4double finalTotalEnergy,
                     G4int Z,
                     G4int shellID,
                     const G4Material*);
 
  virtual void SamplePairDirections(const G4DynamicParticle* dp,
                    G4double elecKinEnergy,
                    G4double posiKinEnergy,
                    G4ThreeVector& dirElectron,
                    G4ThreeVector& dirPositron,
                    G4int Z = 0,
                    const G4Material* mat = nullptr);
 
  inline const G4String& GetName() const;
 
  // hide assignment operator
  G4VEmAngularDistribution & 
    operator=(const  G4VEmAngularDistribution &right) = delete;
  G4VEmAngularDistribution(const  G4VEmAngularDistribution&) = delete;
 
protected:
 
  G4ThreeVector fLocalDirection;
  G4bool fPolarisation;
 
private:
 
  G4String fName;
};
 
inline const G4String& G4VEmAngularDistribution::GetName() const
{
  return fName;
}
 
#endif