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25 //
26 // Calculation of the total, elastic and inelastic cross-sections
27 // based on parametrisations of (proton, pion, kaon, photon) nucleon
28 // cross-sections and the hadron-nucleous cross-section model in
29 // the framework of Glauber-Gribov approach
30 //
31 // 25.04.12 V. Grichine - first implementation based on
32 // G4GlauberGribovCrossSection old interface
33 //
34 // 04.09.18 V. Ivantchenko Major revision of interfaces and implementation
35 // 01.10.18 V. Grichine strange hyperon xsc
36 // 27.05.19 V. Ivantchenko Removed obsolete methods and members
37
38 #ifndef G4ComponentGGHadronNucleusXsc_h
39 #define G4ComponentGGHadronNucleusXsc_h 1
40
41 #include "globals.hh"
42 #include "G4Proton.hh"
43 #include "G4Nucleus.hh"
44
45 #include "G4VComponentCrossSection.hh"
46
47 class G4ParticleDefinition;
48 class G4HadronNucleonXsc;
49 class G4Pow;
50
51 class G4ComponentGGHadronNucleusXsc final : public G4VComponentCrossSection
52 {
53 public:
54
55 explicit G4ComponentGGHadronNucleusXsc();
56 ~G4ComponentGGHadronNucleusXsc() final;
57
58 static const char* Default_Name() { return "Glauber-Gribov"; }
59
60 // virtual interface methods
61 G4double GetTotalElementCrossSection(const G4ParticleDefinition* aParticle,
62 G4double kinEnergy,
63 G4int Z, G4double A) final;
64
65 G4double GetTotalIsotopeCrossSection(const G4ParticleDefinition* aParticle,
66 G4double kinEnergy,
67 G4int Z, G4int A) final;
68
69 G4double GetInelasticElementCrossSection(const G4ParticleDefinition* aParticle,
70 G4double kinEnergy,
71 G4int Z, G4double A) final;
72
73 G4double GetInelasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
74 G4double kinEnergy,
75 G4int Z, G4int A) final;
76
77 G4double GetElasticElementCrossSection(const G4ParticleDefinition* aParticle,
78 G4double kinEnergy,
79 G4int Z, G4double A) final;
80
81 G4double GetElasticIsotopeCrossSection(const G4ParticleDefinition* aParticle,
82 G4double kinEnergy,
83 G4int Z, G4int A) final;
84
85 G4double ComputeQuasiElasticRatio(const G4ParticleDefinition* aParticle,
86 G4double kinEnergy,
87 G4int Z, G4int A) final;
88
89 // Glauber-Gribov cross section
90 void ComputeCrossSections(const G4ParticleDefinition* aParticle,
91 G4double kinEnergy, G4int Z, G4int A, G4int nL = 0);
92
93 // additional public methods
94 G4double GetProductionElementCrossSection(const G4ParticleDefinition* aParticle,
95 G4double kinEnergy,
96 G4int Z, G4double A);
97
98 G4double GetProductionIsotopeCrossSection(const G4ParticleDefinition* aParticle,
99 G4double kinEnergy,
100 G4int Z, G4int A);
101
102 G4double GetRatioSD(const G4DynamicParticle*, G4int At, G4int Zt);
103 G4double GetRatioQE(const G4DynamicParticle*, G4int At, G4int Zt);
104
105 G4double GetHadronNucleonXsc(const G4DynamicParticle*, const G4Element*);
106 G4double GetHadronNucleonXsc(const G4DynamicParticle*, G4int At, G4int Zt);
107
108 G4double GetHadronNucleonXscPDG(const G4DynamicParticle*, const G4Element*);
109 G4double GetHadronNucleonXscPDG(const G4DynamicParticle*, G4int At, G4int Zt);
110 G4double GetHadronNucleonXscNS(const G4DynamicParticle*, const G4Element*);
111 G4double GetHadronNucleonXscNS(const G4DynamicParticle*, G4int At, G4int Zt);
112
113 G4double GetHNinelasticXsc(const G4DynamicParticle*, const G4Element*);
114 G4double GetHNinelasticXsc(const G4DynamicParticle*, G4int At, G4int Zt);
115 G4double GetHNinelasticXscVU(const G4DynamicParticle*, G4int At, G4int Zt);
116
117 void Description(std::ostream&) const final;
118
119 inline G4double GetIsoCrossSection(const G4DynamicParticle*, G4int Z, G4int A,
120 const G4Isotope* iso = nullptr,
121 const G4Element* elm = nullptr,
122 const G4Material* mat = nullptr);
123
124 inline G4double GetElasticGlauberGribov(const G4DynamicParticle*, G4int Z, G4int A);
125 inline G4double GetInelasticGlauberGribov(const G4DynamicParticle*, G4int Z, G4int A);
126
127 inline G4double GetAxsc2piR2() const { return fAxsc2piR2; };
128 inline G4double GetModelInLog() const { return fModelInLog; };
129 inline G4double GetTotalGlauberGribovXsc() const { return fTotalXsc; };
130 inline G4double GetElasticGlauberGribovXsc() const { return fElasticXsc; };
131 inline G4double GetInelasticGlauberGribovXsc() const { return fInelasticXsc; };
132 inline G4double GetProductionGlauberGribovXsc() const { return fProductionXsc; };
133 inline G4double GetDiffractionGlauberGribovXsc() const { return fDiffractionXsc; };
134
135 inline G4double GetParticleBarCorTot(const G4ParticleDefinition* theParticle, G4int Z);
136 inline G4double GetParticleBarCorIn(const G4ParticleDefinition* theParticle, G4int Z);
137
138 private:
139
140 static const G4double fNeutronBarCorrectionTot[93];
141 static const G4double fNeutronBarCorrectionIn[93];
142
143 static const G4double fProtonBarCorrectionTot[93];
144 static const G4double fProtonBarCorrectionIn[93];
145
146 static const G4double fPionPlusBarCorrectionTot[93];
147 static const G4double fPionPlusBarCorrectionIn[93];
148
149 static const G4double fPionMinusBarCorrectionTot[93];
150 static const G4double fPionMinusBarCorrectionIn[93];
151
152 G4double fTotalXsc, fElasticXsc, fInelasticXsc, fProductionXsc, fDiffractionXsc;
153 G4double fAxsc2piR2, fModelInLog;
154 G4double fEnergy; //Cache
155
156 const G4ParticleDefinition* theGamma;
157 const G4ParticleDefinition* theProton;
158 const G4ParticleDefinition* theNeutron;
159 const G4ParticleDefinition* theAProton;
160 const G4ParticleDefinition* theANeutron;
161 const G4ParticleDefinition* thePiPlus;
162 const G4ParticleDefinition* thePiMinus;
163 const G4ParticleDefinition* theKPlus;
164 const G4ParticleDefinition* theKMinus;
165 const G4ParticleDefinition* theK0S;
166 const G4ParticleDefinition* theK0L;
167 const G4ParticleDefinition* theLambda;
168
169 G4HadronNucleonXsc* hnXsc;
170
171 // Cache
172 const G4ParticleDefinition* fParticle;
173 G4int fZ, fA, fL;
174
175 };
176
177 ////////////////////////////////////////////////////////////////
178 //
179 // Inlines
180
181 inline G4double
182 G4ComponentGGHadronNucleusXsc::GetIsoCrossSection(const G4DynamicParticle* dp,
183 G4int Z, G4int A,
184 const G4Isotope*,
185 const G4Element*,
186 const G4Material*)
187 {
188 ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
189 return fTotalXsc;
190 }
191
192 inline G4double
193 G4ComponentGGHadronNucleusXsc::GetElasticGlauberGribov(
194 const G4DynamicParticle* dp, G4int Z, G4int A)
195 {
196 ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
197 return fElasticXsc;
198 }
199
200 /////////////////////////////////////////////////////////////////
201
202 inline G4double
203 G4ComponentGGHadronNucleusXsc::GetInelasticGlauberGribov(
204 const G4DynamicParticle* dp, G4int Z, G4int A)
205 {
206 ComputeCrossSections(dp->GetDefinition(), dp->GetKineticEnergy(), Z, A);
207 return fInelasticXsc;
208 }
209
210 /////////////////////////////////////////////////////////////////////
211 //
212 // return correction at Tkin = 90*GeV GG -> Barashenkov tot xsc, when it
213 // is available, else return 1.0
214
215 inline G4double G4ComponentGGHadronNucleusXsc::GetParticleBarCorTot(
216 const G4ParticleDefinition* theParticle, G4int ZZ)
217 {
218 G4double cor = 1.0;
219 G4int z = std::min(92, std::max(ZZ, 1));
220 if( theParticle == theProton ) cor = fProtonBarCorrectionTot[z];
221 else if( theParticle == theNeutron) cor = fNeutronBarCorrectionTot[z];
222 else if( theParticle == thePiPlus ) cor = fPionPlusBarCorrectionTot[z];
223 else if( theParticle == thePiMinus) cor = fPionMinusBarCorrectionTot[z];
224 return cor;
225 }
226
227 /////////////////////////////////////////////////////////////////////
228 //
229 // return correction at Tkin = 90*GeV GG -> Barashenkov in xsc, when it
230 // is available, else return 1.0
231
232
233 inline G4double G4ComponentGGHadronNucleusXsc::GetParticleBarCorIn(
234 const G4ParticleDefinition* theParticle, G4int ZZ)
235 {
236 G4double cor = 1.0;
237 G4int z = std::min(92, std::max(ZZ, 1));
238 if( theParticle == theProton ) cor = fProtonBarCorrectionIn[z];
239 else if( theParticle == theNeutron) cor = fNeutronBarCorrectionIn[z];
240 else if( theParticle == thePiPlus ) cor = fPionPlusBarCorrectionIn[z];
241 else if( theParticle == thePiMinus) cor = fPionMinusBarCorrectionIn[z];
242 return cor;
243 }
244
245 #endif
246