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25 //
26 //
27 // -------------------------------------------------------------------
28 //
29 // GEANT4 Class header file
30 //
31 //
32 // File name: G4BGGPionElasticXS
33 //
34 // Author: Vladimir Ivanchenko
35 //
36 // Creation date: 01.10.2003
37 // Modifications:
38 //
39 //
40 // Class Description:
41 //
42 // Wrapper of pi+ and pi- inelastic cross-sections using Barashenkov
43 // parametersation below 100 GeV and Glauber-Gribov model above
44 //
45 // -------------------------------------------------------------------
46 //
47
48 #ifndef G4BGGPionElasticXS_h
49 #define G4BGGPionElasticXS_h
50
51 #include "globals.hh"
52 #include "G4VCrossSectionDataSet.hh"
53 #include "G4ParticleDefinition.hh"
54
55 class G4ComponentGGHadronNucleusXsc;
56 class G4UPiNuclearCrossSection;
57 class G4HadronNucleonXsc;
58 class G4Material;
59 class G4Element;
60 class G4Isotope;
61 class G4Pow;
62
63 class G4BGGPionElasticXS final : public G4VCrossSectionDataSet
64 {
65 public:
66
67 explicit G4BGGPionElasticXS (const G4ParticleDefinition*);
68
69 ~G4BGGPionElasticXS() final;
70
71 G4bool IsElementApplicable(const G4DynamicParticle*, G4int Z,
72 const G4Material*) final;
73
74 G4bool IsIsoApplicable(const G4DynamicParticle*, G4int Z, G4int A,
75 const G4Element* elm,
76 const G4Material* mat) final;
77
78 G4double GetElementCrossSection(const G4DynamicParticle*, G4int Z,
79 const G4Material* mat) final;
80
81 G4double GetIsoCrossSection(const G4DynamicParticle*, G4int Z, G4int A,
82 const G4Isotope* iso=nullptr,
83 const G4Element* elm=nullptr,
84 const G4Material* mat=nullptr) final;
85
86 void BuildPhysicsTable(const G4ParticleDefinition&) final;
87
88 void CrossSectionDescription(std::ostream&) const final;
89
90 G4BGGPionElasticXS & operator=(const G4BGGPionElasticXS &right) = delete;
91 G4BGGPionElasticXS(const G4BGGPionElasticXS&) = delete;
92
93 private:
94
95 void Initialise();
96
97 G4double CoulombFactorPiPlus(G4double kinEnergy, G4int Z);
98
99 G4double FactorPiMinus(G4double kinEnergy);
100
101 G4double fGlauberEnergy;
102 G4double fLowEnergy;
103 G4double fLowestEnergy;
104
105 static G4double theGlauberFacPiPlus[93];
106 static G4double theCoulombFacPiPlus[93];
107 static G4double theGlauberFacPiMinus[93];
108 static G4double theCoulombFacPiMinus[93];
109 static G4int theA[93];
110
111 const G4ParticleDefinition* theProton;
112 const G4ParticleDefinition* thePiPlus;
113
114 G4Pow* fG4pow;
115
116 G4ComponentGGHadronNucleusXsc* fGlauber;
117 G4UPiNuclearCrossSection* fPion;
118 G4HadronNucleonXsc* fHadron;
119 G4bool isPiplus;
120 };
121
122 #endif
123