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25 //
26 // author: Vladimir.Grichine@cern.ch
27 //
28 // Implements data from: Barashenkov V.S., Nucleon-Nucleus Cross Section,
29 // Preprint JINR P2-89-770, p. 12, Dubna 1989 (scanned version from KEK)
30 // Based on G. Folger version of G4PiNuclearCrossSection class
31 //
32 // Modified:
33 // 05.03.2024 V.Ivanchenko removed obsolete methods and calls
34 //
35
36 #ifndef G4NucleonNuclearCrossSection_h
37 #define G4NucleonNuclearCrossSection_h
38
39 #include "G4VCrossSectionDataSet.hh"
40 #include "G4ParticleDefinition.hh"
41 #include "globals.hh"
42
43 class G4ComponentBarNucleonNucleusXsc;
44 class G4ParticleDefinition;
45
46 class G4NucleonNuclearCrossSection : public G4VCrossSectionDataSet
47 {
48 public:
49
50 G4NucleonNuclearCrossSection();
51 ~G4NucleonNuclearCrossSection() override = default;
52
53 static const char* Default_Name() { return "BarashenkovNucleonXS"; }
54
55 G4bool IsElementApplicable(const G4DynamicParticle* aParticle,
56 G4int Z, const G4Material* mat) final;
57
58 // return inelastic x-section
59 G4double GetElementCrossSection(const G4DynamicParticle* aParticle,
60 G4int Z, const G4Material* mat=nullptr) final;
61
62 void CrossSectionDescription(std::ostream&) const final;
63
64 // return elastic x-section
65 inline G4double GetElasticCrossSection(const G4DynamicParticle* aParticle,
66 G4int Z);
67
68 // access methods should be called after ComputeCrossSection(...)
69 inline G4double GetTotalXsc() { return fTotalXsc; };
70 inline G4double GetInelasticXsc() { return fInelasticXsc; };
71 inline G4double GetElasticXsc() { return fElasticXsc; };
72
73 G4NucleonNuclearCrossSection& operator=
74 (const G4NucleonNuclearCrossSection &right) = delete;
75 G4NucleonNuclearCrossSection(const G4NucleonNuclearCrossSection&) = delete;
76
77 private:
78
79 void ComputeCrossSections(const G4ParticleDefinition*,
80 G4double kinEnergy, G4int Z);
81
82 G4ComponentBarNucleonNucleusXsc* fBarash;
83
84 G4double fTotalXsc{0.0};
85 G4double fInelasticXsc{0.0};
86 G4double fElasticXsc{0.0};
87 };
88
89 inline
90 G4double G4NucleonNuclearCrossSection::GetElasticCrossSection(
91 const G4DynamicParticle* dp, G4int Z)
92 {
93 ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z);
94 return fElasticXsc;
95 }
96
97 #endif
98