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G4NuclearPolarization.hh
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26 // -------------------------------------------------------------------
27 // GEANT4 Class file
28 //
29 // File name: G4NuclearPolarization
30 //
31 // Author: Jason Detwiler (jasondet@gmail.com)
32 //
33 // Creation date: Aug 2015
34 //
35 // Description:
36 // Stores the statistical tensor describing the nuclear polarization
37 // (see Alder and Winther, "Electromagnetic Excitation" (1975),
38 // Appendix F).
39 //
40 // V.Ivanchenko left only polarization tensor and access methods
41 // in this class, also add operators
42 // this allows future implemention of polarized
43 // hadronic models with polarized initial and
44 // final states
45 //
46 // -------------------------------------------------------------------
47 
48 #ifndef G4NUCLEARPOLARIZATION_HH
49 #define G4NUCLEARPOLARIZATION_HH
50 
51 #include "globals.hh"
52 #include <vector>
53 
55 {
56 public:
57 
58  explicit G4NuclearPolarization(G4int Z, G4int A, G4double exc);
59 
61 
62  inline void Unpolarize()
63  {
64  Clean();
65  fPolarization.resize(1);
66  fPolarization[0].push_back(1.0);
67  }
68 
69  inline void SetPolarization(std::vector< std::vector<G4complex> >& p)
70  {
71  Clean();
72  for(auto & pol : p) {
73  fPolarization.push_back(pol);
74  }
75  }
76 
77  inline std::vector< std::vector<G4complex> >& GetPolarization()
78  {
79  return fPolarization;
80  }
81 
82  inline G4int GetZ() const
83  {
84  return fZ;
85  }
86 
87  inline G4int GetA() const
88  {
89  return fA;
90  }
91 
93  {
94  return fExcEnergy;
95  }
96 
97  inline void SetExcitationEnergy(G4double val)
98  {
99  fExcEnergy = val;
100  }
101 
102  // ============= OPERATORS ==================
103 
105  {
106  if (this != &right) {
107  fZ = right.fZ;
108  fA = right.fA;
109  fExcEnergy = right.fExcEnergy;
110  fPolarization = right.fPolarization;
111  }
112  return *this;
113  }
114 
116  {
117  *this = right;
118  }
119 
122 
123  friend std::ostream& operator<<(std::ostream&, const G4NuclearPolarization&);
124 
125 private:
126 
127  void Clean();
128 
132  std::vector< std::vector<G4complex> > fPolarization;
133 };
134 
135 #endif