// This code implementation is the intellectual property of
// the GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// $Id: G4PolarizedComptonScattering.hh,v 1.2 1999/12/15 14:51:48 gunter Exp $
// GEANT4 tag $Name: geant4-02-00 $
//
// ------------------------------------------------------------
//      GEANT 4 class header file --- Copyright CERN 1995
//      CERN Geneva Switzerland
//
//      For information related to this code contact:
//      CERN, CN Division, ASD group
//
// --------- G4PolarizedComptonScattering physics process ------
//                   by Vicente Lara, March 1998
// ************************************************************
//
// ------------------------------------------------------------

#ifndef G4PolarizedComptonScattering_h
#define G4PolarizedComptonScattering_h 1

#include "G4ComptonScattering.hh"
#include "G4EnergyLossTables.hh"

class G4PolarizedComptonScattering : public G4ComptonScattering
{  
public:
  
  G4PolarizedComptonScattering(const G4String& processName = "polarCompt");

  G4VParticleChange* PostStepDoIt(const G4Track& aTrack, const G4Step& aStep);

private:
  
  G4ThreeVector SetNewPolarization(G4double, G4double,
  				   G4double, G4double,
  				   G4ThreeVector& );

  void SystemOfRefChange(G4ThreeVector&, G4ThreeVector&, G4ThreeVector&, 
                         G4ThreeVector&);

  // hide assignment operator as private 
  G4PolarizedComptonScattering& operator=(const G4PolarizedComptonScattering &right);
  G4PolarizedComptonScattering(const G4PolarizedComptonScattering& );

};

  
#endif