G4PolarizationHelper.hh

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//
// Geant4 Class header file
//
// File name:     G4PolarizationHelper
//
// Author:        Andreas Schaelicke
//
// Class Description:
//   Provides some basic polarization transformation routines.
 
#ifndef G4PolarizationHelper_h
#define G4PolarizationHelper_h 1
 
#include "globals.hh"
#include "G4ThreeVector.hh"
 
class G4PolarizationHelper
{
 public:
  static G4ThreeVector GetFrame(const G4ThreeVector&, const G4ThreeVector&);
  static G4ThreeVector GetParticleFrameX(const G4ThreeVector&);
  static G4ThreeVector GetParticleFrameY(const G4ThreeVector&);
  static G4ThreeVector GetRandomFrame(const G4ThreeVector&);
 
  static G4ThreeVector GetSpinInPRF(const G4ThreeVector& uZ,
                                    const G4ThreeVector& spin);
 
  static void TestPolarizationTransformations();
  static void TestInteractionFrame();
};
 
#endif