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25 //
26 // Calculation of the nucleus-nucleus total, inelastic, production,
27 // elastic and quasi-elastic cross-sections
28 // based on parametrisations of nucleon-nucleon
29 // cross-sections in
30 // the framework of simplified Glauber-Gribov approach
31 //
32 //
33 // 24.11.08 V. Grichine - first implementation based on
34 // G4GlauberGribovCrossSection
35 //
36 // 04.09.18 V. Ivantchenko Major revision of interfaces and implementation
37 // 27.05.19 V. Ivantchenko Removed obsolete methods and members
38 //
39
40 #ifndef G4ComponentGGNuclNuclXsc_h
41 #define G4ComponentGGNuclNuclXsc_h
42
43 #include "globals.hh"
44 #include "G4VComponentCrossSection.hh"
45 #include "G4DynamicParticle.hh"
46
47 class G4ParticleDefinition;
48 class G4HadronNucleonXsc;
49 class G4ComponentGGHadronNucleusXsc;
50 class G4Material;
51
52 class G4ComponentGGNuclNuclXsc : public G4VComponentCrossSection
53 {
54 public:
55
56 G4ComponentGGNuclNuclXsc();
57 ~G4ComponentGGNuclNuclXsc() override;
58
59 // virtual interface methods
60 G4double GetTotalElementCrossSection(const G4ParticleDefinition* aParticle,
61 G4double kinEnergy,
62 G4int Z, G4double A) final;
63
64 G4double GetTotalIsotopeCrossSection(const G4ParticleDefinition* aParticle,
65 G4double kinEnergy,
66 G4int Z, G4int A) final;
67
68 G4double GetInelasticElementCrossSection(const G4ParticleDefinition* aParticle,
69 G4double kinEnergy,
70 G4int Z, G4double A) final;
71
72 G4double GetInelasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
73 G4double kinEnergy,
74 G4int Z, G4int A) final;
75
76 G4double GetElasticElementCrossSection(const G4ParticleDefinition* aParticle,
77 G4double kinEnergy,
78 G4int Z, G4double A) final;
79
80 G4double GetElasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
81 G4double kinEnergy,
82 G4int Z, G4int A) final;
83
84 G4double ComputeQuasiElasticRatio(const G4ParticleDefinition* aParticle,
85 G4double kinEnergy,
86 G4int Z, G4int A) final;
87
88 void BuildPhysicsTable(const G4ParticleDefinition&) final;
89
90 void DumpPhysicsTable(const G4ParticleDefinition&) final;
91
92 void Description(std::ostream&) const final;
93
94 inline G4double GetZandACrossSection(const G4DynamicParticle*,
95 G4int Z, G4int A);
96
97 inline G4double GetCoulombBarier(const G4DynamicParticle*,
98 G4double Z, G4double A,
99 G4double pR, G4double tR);
100
101 G4double ComputeCoulombBarier(const G4ParticleDefinition* aParticle,
102 G4double kinEnergy, G4int Z, G4int A,
103 G4double pR, G4double tR);
104
105 G4double GetRatioSD(const G4DynamicParticle*, G4double At, G4double Zt);
106 G4double GetRatioQE(const G4DynamicParticle*, G4double At, G4double Zt);
107
108 // main access methods
109 inline G4double GetElasticGlauberGribov(const G4DynamicParticle*,G4int Z, G4int A);
110 inline G4double GetInelasticGlauberGribov(const G4DynamicParticle*,G4int Z, G4int A);
111
112 inline G4double GetTotalGlauberGribovXsc() const { return fTotalXsc; };
113 inline G4double GetElasticGlauberGribovXsc() const { return fElasticXsc; };
114 inline G4double GetInelasticGlauberGribovXsc() const { return fInelasticXsc; };
115 inline G4double GetProductionGlauberGribovXsc() const { return fProductionXsc; };
116 inline G4double GetDiffractionGlauberGribovXsc() const { return fDiffractionXsc; };
117
118 G4ComponentGGNuclNuclXsc& operator=
119 (const G4ComponentGGNuclNuclXsc &right) = delete;
120 G4ComponentGGNuclNuclXsc(const G4ComponentGGNuclNuclXsc&) = delete;
121
122 private:
123
124 // Glauber-Gribov cross section
125 void ComputeCrossSections(const G4ParticleDefinition* aParticle,
126 G4double kinEnergy, G4int Z, G4int A);
127
128 G4double fTotalXsc{0.0};
129 G4double fElasticXsc{0.0};
130 G4double fInelasticXsc{0.0};
131 G4double fProductionXsc{0.0};
132 G4double fDiffractionXsc{0.0};
133 // Cache
134 G4double fEnergy{0.0};
135
136 const G4ParticleDefinition* theProton;
137 const G4ParticleDefinition* theNeutron;
138 const G4ParticleDefinition* theLambda;
139
140 G4ComponentGGHadronNucleusXsc* fHadrNucl;
141 G4HadronNucleonXsc* fHNXsc;
142
143 // Cache
144 const G4ParticleDefinition* fParticle{nullptr};
145 G4int fZ{0};
146 G4int fA{0};
147 };
148
149 inline G4double
150 G4ComponentGGNuclNuclXsc::GetElasticGlauberGribov(const G4DynamicParticle* dp,
151 G4int Z, G4int A)
152 {
153 ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
154 return fElasticXsc;
155 }
156
157 inline G4double
158 G4ComponentGGNuclNuclXsc::GetInelasticGlauberGribov(const G4DynamicParticle* dp,
159 G4int Z, G4int A)
160 {
161 ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
162 return fInelasticXsc;
163 }
164
165 inline G4double
166 G4ComponentGGNuclNuclXsc::GetZandACrossSection(const G4DynamicParticle* dp,
167 G4int Z, G4int A)
168 {
169 ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
170 return fInelasticXsc;
171 }
172
173 inline G4double
174 G4ComponentGGNuclNuclXsc::GetCoulombBarier(const G4DynamicParticle* dp,
175 G4double Z, G4double A,
176 G4double pR, G4double tR)
177 {
178 return ComputeCoulombBarier(dp->GetDefinition(), dp->GetKineticEnergy(),
179 G4lrint(Z), G4lrint(A), pR, tR);
180 }
181
182 #endif
183