Geant4 Cross Reference

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Geant4/processes/electromagnetic/polarisation/include/G4VPolarizedXS.hh

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 25 //
 26 // File name:     G4VPolarizedXS
 27 //
 28 // Author:        Andreas Schaelicke
 29 //
 30 // Class Description:
 31 //   (virtual) interface class
 32 //
 33 //   provides readable but efficient routines to determine
 34 //   polarization for the final state of a given process
 35 //   empoying the differential cross section
 36 
 37 #ifndef G4VPolarizedXS_h
 38 #define G4VPolarizedXS_h 1
 39 
 40 #include "G4StokesVector.hh"
 41 
 42 class G4VPolarizedXS
 43 {
 44  public:
 45   G4VPolarizedXS();
 46   virtual ~G4VPolarizedXS();
 47 
 48   virtual void Initialize(G4double, G4double, G4double,
 49                           const G4StokesVector& p0, const G4StokesVector& p1,
 50                           G4int flag = 0) = 0;
 51 
 52   virtual G4double XSection(const G4StokesVector& pol2,
 53                             const G4StokesVector& pol3) = 0;
 54 
 55   virtual G4double TotalXSection(G4double xmin, G4double xmax, G4double y,
 56                                  const G4StokesVector& pol0,
 57                                  const G4StokesVector& pol1);
 58 
 59   // return expected mean polarisation
 60   virtual G4StokesVector GetPol2();
 61   virtual G4StokesVector GetPol3();
 62 
 63   // return basic kinematics properties
 64   //   minimal gamma value in TotalXSection
 65   inline G4double GetYmin() { return fYmin; }
 66   //   minimal energy fraction in TotalXSection
 67   virtual G4double GetXmin(G4double y);
 68   //   maximal energy fraction in TotalXSection
 69   virtual G4double GetXmax(G4double y);
 70 
 71   inline void SetMaterial(G4double A, G4double Z, G4double coul)
 72   {
 73     fA    = A;
 74     fZ    = Z;
 75     fCoul = coul;
 76   }
 77 
 78   G4VPolarizedXS& operator=(const G4VPolarizedXS& right) = delete;
 79   G4VPolarizedXS(const G4VPolarizedXS&)                  = delete;
 80 
 81  protected:
 82   // define kinematics properties
 83   inline void SetXmin(G4double xmin) { fXmin = xmin; }
 84   inline void SetXmax(G4double xmax) { fXmax = xmax; }
 85   inline void SetYmin(G4double ymin) { fYmin = ymin; }
 86 
 87   // kinematic properties
 88   G4double fXmin, fXmax, fYmin;
 89   // material properties
 90   G4double fA, fZ;
 91   G4double fCoul;
 92 };
 93 
 94 #endif
 95