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25 //
26 //
27 // author: Vladimir.Grichine@cern.ch
28 //
29 // Implements data from: Barashenkov V.S., Nucleon-Nucleus Cross Section,
30 // Preprint JINR P2-89-770, p. 12, Dubna 1989 (scanned version from KEK)
31 // Based on G4NucleonNuclearCrossSection class
32 //
33 // Modifications: 16.08.2018 V.Ivanchenko major revision
34 //
35
36 #ifndef G4ComponentBarNucleonNucleusXsc_h
37 #define G4ComponentBarNucleonNucleusXsc_h
38
39
40 #include "G4VComponentCrossSection.hh"
41 #include "G4ParticleDefinition.hh"
42 #include "G4DynamicParticle.hh"
43
44 #include "globals.hh"
45 #include "G4PiData.hh"
46 #include <vector>
47
48 class G4ComponentBarNucleonNucleusXsc : public G4VComponentCrossSection
49 {
50
51 public:
52
53 G4ComponentBarNucleonNucleusXsc();
54 ~G4ComponentBarNucleonNucleusXsc() override = default;
55
56 G4double GetTotalIsotopeCrossSection(const G4ParticleDefinition* aParticle,
57 G4double kinEnergy,
58 G4int Z, G4int ) final;
59
60 G4double GetTotalElementCrossSection(const G4ParticleDefinition* aParticle,
61 G4double kinEnergy,
62 G4int Z, G4double ) final;
63
64 G4double GetInelasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
65 G4double kinEnergy,
66 G4int Z, G4int ) final;
67
68 G4double GetInelasticElementCrossSection(const G4ParticleDefinition* aParticle,
69 G4double kinEnergy,
70 G4int Z, G4double ) final;
71
72 G4double GetElasticElementCrossSection(const G4ParticleDefinition* aParticle,
73 G4double kinEnergy,
74 G4int Z, G4double ) final;
75
76 G4double GetElasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
77 G4double kinEnergy,
78 G4int Z, G4int ) final;
79
80 void ComputeCrossSections(const G4ParticleDefinition* aParticle,
81 G4double kinEnergy, G4int Z);
82
83 void Description(std::ostream&) const final;
84
85 inline G4double GetElementCrossSection(const G4DynamicParticle* aParticle, G4int Z);
86 inline G4double GetElasticCrossSection(const G4DynamicParticle* aParticle, G4int Z);
87
88 inline G4double GetTotalXsc() { return fTotalXsc; };
89 inline G4double GetElasticXsc() { return fElasticXsc; };
90 inline G4double GetInelasticXsc() { return fInelasticXsc; };
91
92 G4ComponentBarNucleonNucleusXsc& operator=
93 (const G4ComponentBarNucleonNucleusXsc &right) = delete;
94 G4ComponentBarNucleonNucleusXsc(const G4ComponentBarNucleonNucleusXsc&) = delete;
95
96 private:
97
98 G4double Interpolate(G4int Z1, G4int Z2, G4int Z, G4double x1, G4double x2) const;
99
100 void LoadData();
101
102 // cross sections
103 G4double fTotalXsc{0.0};
104 G4double fInelasticXsc{0.0};
105 G4double fElasticXsc{0.0};
106
107 // particles
108 const G4ParticleDefinition* theProton;
109 const G4ParticleDefinition* theNeutron;
110
111 static G4double A75[93];
112 static const G4int NZ = 17;
113 static G4int theZ[NZ];
114 static std::vector<G4PiData*>* thePData;
115 static std::vector<G4PiData*>* theNData;
116 };
117
118 inline
119 G4double G4ComponentBarNucleonNucleusXsc::GetElementCrossSection(
120 const G4DynamicParticle* dp, G4int Z)
121 {
122 ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z);
123 return fInelasticXsc;
124 }
125
126 inline
127 G4double G4ComponentBarNucleonNucleusXsc::GetElasticCrossSection(
128 const G4DynamicParticle* dp, G4int Z)
129 {
130 ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z);
131 return fElasticXsc;
132 }
133
134 #endif
135