| Geant4 Cross Reference |
1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. 9 // * include a list of copyright holders. *
10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. *
17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. *
24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // ------------------------------------------- 26 // -------------------------------------------------------------------
27 // 27 //
28 // GEANT4 Class file 28 // GEANT4 Class file
29 // 29 //
30 // 30 //
31 // File name: G4BGGPionInelasticXS 31 // File name: G4BGGPionInelasticXS
32 // 32 //
33 // Author: Vladimir Ivanchenko 33 // Author: Vladimir Ivanchenko
34 // 34 //
35 // Creation date: 01.10.2003 35 // Creation date: 01.10.2003
36 // Modifications: 36 // Modifications:
37 // 37 //
38 // ------------------------------------------- 38 // -------------------------------------------------------------------
39 // 39 //
40 40
41 #include "G4BGGPionInelasticXS.hh" 41 #include "G4BGGPionInelasticXS.hh"
42 #include "G4SystemOfUnits.hh" 42 #include "G4SystemOfUnits.hh"
43 #include "G4ComponentGGHadronNucleusXsc.hh" 43 #include "G4ComponentGGHadronNucleusXsc.hh"
44 #include "G4UPiNuclearCrossSection.hh" 44 #include "G4UPiNuclearCrossSection.hh"
45 #include "G4HadronNucleonXsc.hh" 45 #include "G4HadronNucleonXsc.hh"
46 #include "G4NuclearRadii.hh" 46 #include "G4NuclearRadii.hh"
47 47
48 #include "G4Proton.hh" 48 #include "G4Proton.hh"
49 #include "G4PionPlus.hh" 49 #include "G4PionPlus.hh"
50 #include "G4PionMinus.hh" 50 #include "G4PionMinus.hh"
51 #include "G4NistManager.hh" 51 #include "G4NistManager.hh"
52 #include "G4Pow.hh" 52 #include "G4Pow.hh"
>> 53
53 #include "G4HadronicParameters.hh" 54 #include "G4HadronicParameters.hh"
54 55
55 G4double G4BGGPionInelasticXS::theGlauberFacPi 56 G4double G4BGGPionInelasticXS::theGlauberFacPiPlus[93] = {0.0};
56 G4double G4BGGPionInelasticXS::theGlauberFacPi 57 G4double G4BGGPionInelasticXS::theGlauberFacPiMinus[93] = {0.0};
57 G4double G4BGGPionInelasticXS::theLowEPiPlus[9 58 G4double G4BGGPionInelasticXS::theLowEPiPlus[93] = {0.0};
58 G4double G4BGGPionInelasticXS::theLowEPiMinus[ 59 G4double G4BGGPionInelasticXS::theLowEPiMinus[93] = {0.0};
59 G4int G4BGGPionInelasticXS::theA[93] = {0}; 60 G4int G4BGGPionInelasticXS::theA[93] = {0};
60 61
>> 62 #ifdef G4MULTITHREADED
>> 63 G4Mutex G4BGGPionInelasticXS::pionInelasticXSMutex = G4MUTEX_INITIALIZER;
>> 64 #endif
>> 65
61 G4BGGPionInelasticXS::G4BGGPionInelasticXS(con 66 G4BGGPionInelasticXS::G4BGGPionInelasticXS(const G4ParticleDefinition* p)
62 : G4VCrossSectionDataSet("BarashenkovGlauberG 67 : G4VCrossSectionDataSet("BarashenkovGlauberGribov")
63 { 68 {
64 verboseLevel = 0; 69 verboseLevel = 0;
65 fGlauberEnergy = 91.*CLHEP::GeV; << 70 fGlauberEnergy = 91.*CLHEP::GeV;
66 fLowEnergy = 20.*CLHEP::MeV; << 71 fLowEnergy = 20.*CLHEP::MeV;
67 fLowestEnergy = 1.*CLHEP::MeV; << 72 fLowestEnergy = 1.*CLHEP::MeV;
68 SetMinKinEnergy(0.0); 73 SetMinKinEnergy(0.0);
69 SetMaxKinEnergy( G4HadronicParameters::Insta 74 SetMaxKinEnergy( G4HadronicParameters::Instance()->GetMaxEnergy() );
70 75
71 fPion = new G4UPiNuclearCrossSection(); << 76 fPion = nullptr;
72 fGlauber = new G4ComponentGGHadronNucleusXsc << 77 fGlauber = nullptr;
73 fHadron = new G4HadronNucleonXsc(); << 78 fHadron = nullptr;
74 79
75 fG4pow = G4Pow::GetInstance(); 80 fG4pow = G4Pow::GetInstance();
76 81
77 theProton = G4Proton::Proton(); 82 theProton = G4Proton::Proton();
78 thePiPlus = G4PionPlus::PionPlus(); 83 thePiPlus = G4PionPlus::PionPlus();
79 isPiplus = (p == thePiPlus); << 84 isPiplus = (p == thePiPlus);
>> 85 isMaster = false;
80 SetForAllAtomsAndEnergies(true); 86 SetForAllAtomsAndEnergies(true);
81 <<
82 if (0 == theA[0]) { Initialise(); } <<
83 } 87 }
84 88
85 //....oooOO0OOooo........oooOO0OOooo........oo 89 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
86 90
87 G4BGGPionInelasticXS::~G4BGGPionInelasticXS() 91 G4BGGPionInelasticXS::~G4BGGPionInelasticXS()
88 { 92 {
89 delete fHadron; 93 delete fHadron;
90 } 94 }
91 95
92 //....oooOO0OOooo........oooOO0OOooo........oo 96 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
93 97
94 G4bool 98 G4bool
95 G4BGGPionInelasticXS::IsElementApplicable(cons 99 G4BGGPionInelasticXS::IsElementApplicable(const G4DynamicParticle*, G4int,
96 cons 100 const G4Material*)
97 { 101 {
98 return true; 102 return true;
99 } 103 }
100 104
101 //....oooOO0OOooo........oooOO0OOooo........oo 105 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
102 106
103 G4bool G4BGGPionInelasticXS::IsIsoApplicable(c 107 G4bool G4BGGPionInelasticXS::IsIsoApplicable(const G4DynamicParticle*,
104 G 108 G4int Z, G4int,
105 c 109 const G4Element*,
106 c 110 const G4Material*)
107 { 111 {
108 return (1 == Z); 112 return (1 == Z);
109 } 113 }
110 114
111 //....oooOO0OOooo........oooOO0OOooo........oo 115 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
112 116
113 G4double 117 G4double
114 G4BGGPionInelasticXS::GetElementCrossSection(c 118 G4BGGPionInelasticXS::GetElementCrossSection(const G4DynamicParticle* dp,
115 G 119 G4int ZZ, const G4Material*)
116 { 120 {
117 // this method should be called only for Z > 121 // this method should be called only for Z > 1
118 122
119 G4double cross = 0.0; 123 G4double cross = 0.0;
120 G4double ekin = std::max(dp->GetKineticEnerg 124 G4double ekin = std::max(dp->GetKineticEnergy(), fLowestEnergy);
121 G4int Z = std::min(ZZ, 92); 125 G4int Z = std::min(ZZ, 92);
122 126
123 if(1 == Z) { 127 if(1 == Z) {
124 cross = 1.0115*GetIsoCrossSection(dp,1,1); 128 cross = 1.0115*GetIsoCrossSection(dp,1,1);
125 } else if(ekin < fLowEnergy) { 129 } else if(ekin < fLowEnergy) {
126 cross = (isPiplus) ? theLowEPiPlus[Z]*Coul 130 cross = (isPiplus) ? theLowEPiPlus[Z]*CoulombFactorPiPlus(ekin, Z)
127 : theLowEPiMinus[Z]*FactorPiMinus(ekin); 131 : theLowEPiMinus[Z]*FactorPiMinus(ekin);
128 } else if(ekin > fGlauberEnergy) { 132 } else if(ekin > fGlauberEnergy) {
129 cross = (isPiplus) ? theGlauberFacPiPlus[Z 133 cross = (isPiplus) ? theGlauberFacPiPlus[Z] : theGlauberFacPiMinus[Z];
130 cross *= fGlauber->GetInelasticGlauberGrib 134 cross *= fGlauber->GetInelasticGlauberGribov(dp, Z, theA[Z]);
131 } else { 135 } else {
132 cross = fPion->GetInelasticCrossSection(dp 136 cross = fPion->GetInelasticCrossSection(dp, Z, theA[Z]);
133 } 137 }
134 #ifdef G4VERBOSE <<
135 if(verboseLevel > 1) { 138 if(verboseLevel > 1) {
136 G4cout << "G4BGGPionInelasticXS::GetCrossS 139 G4cout << "G4BGGPionInelasticXS::GetCrossSection for "
137 << dp->GetDefinition()->GetParticle 140 << dp->GetDefinition()->GetParticleName()
138 << " Ekin(GeV)= " << dp->GetKineti 141 << " Ekin(GeV)= " << dp->GetKineticEnergy()
139 << " in nucleus Z= " << Z << " A= 142 << " in nucleus Z= " << Z << " A= " << theA[Z]
140 << " XS(b)= " << cross/barn 143 << " XS(b)= " << cross/barn
141 << G4endl; 144 << G4endl;
142 } 145 }
143 #endif <<
144 return cross; 146 return cross;
145 } 147 }
146 148
147 //....oooOO0OOooo........oooOO0OOooo........oo 149 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
148 150
149 G4double 151 G4double
150 G4BGGPionInelasticXS::GetIsoCrossSection(const 152 G4BGGPionInelasticXS::GetIsoCrossSection(const G4DynamicParticle* dp,
151 G4int << 153 G4int Z, G4int A,
152 const 154 const G4Isotope*,
153 const 155 const G4Element*,
154 const 156 const G4Material*)
155 { 157 {
156 // this method should be called only for Z = 158 // this method should be called only for Z = 1
157 fHadron->HadronNucleonXscNS(dp->GetDefinitio 159 fHadron->HadronNucleonXscNS(dp->GetDefinition(), theProton,
158 dp->GetKineticEn 160 dp->GetKineticEnergy());
159 G4double cross = A*fHadron->GetInelasticHadr 161 G4double cross = A*fHadron->GetInelasticHadronNucleonXsc();
160 162
161 #ifdef G4VERBOSE <<
162 if(verboseLevel > 1) { 163 if(verboseLevel > 1) {
163 G4cout << "G4BGGPionInelasticXS::GetCrossS 164 G4cout << "G4BGGPionInelasticXS::GetCrossSection for "
164 << dp->GetDefinition()->GetParticle 165 << dp->GetDefinition()->GetParticleName()
165 << " Ekin(GeV)= " << dp->GetKineti 166 << " Ekin(GeV)= " << dp->GetKineticEnergy()
166 << " in nucleus Z=1 A=" << A << 167 << " in nucleus Z= " << Z << " A= " << A
167 << " XS(b)= " << cross/barn 168 << " XS(b)= " << cross/barn
168 << G4endl; 169 << G4endl;
169 } 170 }
170 #endif <<
171 return cross; 171 return cross;
172 } 172 }
173 173
174 //....oooOO0OOooo........oooOO0OOooo........oo 174 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
175 175
176 void G4BGGPionInelasticXS::BuildPhysicsTable(c 176 void G4BGGPionInelasticXS::BuildPhysicsTable(const G4ParticleDefinition& p)
177 { 177 {
>> 178 if(fPion) { return; }
178 if(verboseLevel > 1) { 179 if(verboseLevel > 1) {
179 G4cout << "G4BGGPionInelasticXS::BuildPhys 180 G4cout << "G4BGGPionInelasticXS::BuildPhysicsTable for "
180 << p.GetParticleName() << G4endl; 181 << p.GetParticleName() << G4endl;
181 } 182 }
182 if(&p == G4PionPlus::PionPlus() || &p == G4P 183 if(&p == G4PionPlus::PionPlus() || &p == G4PionMinus::PionMinus()) {
183 isPiplus = (&p == G4PionPlus::PionPlus()); 184 isPiplus = (&p == G4PionPlus::PionPlus());
184 } else { 185 } else {
185 G4ExceptionDescription ed; 186 G4ExceptionDescription ed;
186 ed << "This BGG cross section is applicabl 187 ed << "This BGG cross section is applicable only to pions and not to "
187 << p.GetParticleName() << G4endl; 188 << p.GetParticleName() << G4endl;
188 G4Exception("G4BGGPionInelasticXS::BuildPh 189 G4Exception("G4BGGPionInelasticXS::BuildPhysicsTable", "had001",
189 FatalException, ed); 190 FatalException, ed);
>> 191 return;
190 } 192 }
191 } <<
192 193
193 //....oooOO0OOooo........oooOO0OOooo........oo << 194 fPion = new G4UPiNuclearCrossSection();
>> 195 fGlauber = new G4ComponentGGHadronNucleusXsc();
>> 196 fHadron = new G4HadronNucleonXsc();
194 197
195 void G4BGGPionInelasticXS::Initialise() << 198 fPion->BuildPhysicsTable(p);
196 { <<
197 theA[0] = theA[1] = 1; <<
198 G4ThreeVector mom(0.0,0.0,1.0); <<
199 G4DynamicParticle dp(thePiPlus, mom, fGlaube <<
200 <<
201 G4NistManager* nist = G4NistManager::Instanc <<
202 G4double csup, csdn; <<
203 <<
204 for (G4int iz=2; iz<93; ++iz) { <<
205 G4int A = G4lrint(nist->GetAtomicMassAmu(i <<
206 theA[iz] = A; <<
207 <<
208 csup = fGlauber->GetInelasticGlauberGribov <<
209 csdn = fPion->GetInelasticCrossSection(&dp <<
210 theGlauberFacPiPlus[iz] = csdn/csup; <<
211 } <<
212 199
213 dp.SetDefinition(G4PionMinus::PionMinus()); << 200 if(0 == theA[0]) {
214 for (G4int iz=2; iz<93; ++iz) { << 201 #ifdef G4MULTITHREADED
215 csup = fGlauber->GetInelasticGlauberGribov << 202 G4MUTEXLOCK(&pionInelasticXSMutex);
216 csdn = fPion->GetInelasticCrossSection(&dp << 203 if(0 == theA[0]) {
217 theGlauberFacPiMinus[iz] = csdn/csup; << 204 #endif
218 << 205 isMaster = true;
219 if(verboseLevel > 1) { << 206 #ifdef G4MULTITHREADED
220 G4cout << "Z= " << iz << " A= " << the <<
221 << " factorPiPlus= " << theGlauberFacPi <<
222 << " factorPiMinus= " << theGlauberFacP <<
223 << G4endl; <<
224 } 207 }
>> 208 G4MUTEXUNLOCK(&pionInelasticXSMutex);
>> 209 #endif
>> 210 } else {
>> 211 return;
225 } 212 }
226 213
227 theLowEPiPlus[1] = theLowEPiMinus[1]= 1.0; << 214 if(isMaster && 0 == theA[0]) {
228 dp.SetDefinition(thePiPlus); << 215
229 dp.SetKineticEnergy(fLowEnergy); << 216 theA[0] = theA[1] = 1;
230 for (G4int iz=2; iz<93; ++iz) { << 217 G4ThreeVector mom(0.0,0.0,1.0);
231 theLowEPiPlus[iz] = fPion->GetInelasticCro << 218 G4DynamicParticle dp(thePiPlus, mom, fGlauberEnergy);
232 /CoulombFactorPiPlus(fLowEnergy, iz); << 219
233 } << 220 G4NistManager* nist = G4NistManager::Instance();
>> 221 G4double csup, csdn;
>> 222
>> 223 if(verboseLevel > 0) {
>> 224 G4cout << "### G4BGGPionInelasticXS::Initialise for "
>> 225 << p.GetParticleName()
>> 226 << " isPiplus: " << isPiplus
>> 227 << G4endl;
>> 228 }
>> 229 for(G4int iz=2; iz<93; ++iz) {
>> 230 G4int A = G4lrint(nist->GetAtomicMassAmu(iz));
>> 231 theA[iz] = A;
>> 232
>> 233 csup = fGlauber->GetInelasticGlauberGribov(&dp, iz, A);
>> 234 csdn = fPion->GetInelasticCrossSection(&dp, iz, A);
>> 235 theGlauberFacPiPlus[iz] = csdn/csup;
>> 236 }
>> 237
>> 238 dp.SetDefinition(G4PionMinus::PionMinus());
>> 239 for(G4int iz=2; iz<93; ++iz) {
>> 240 csup = fGlauber->GetInelasticGlauberGribov(&dp, iz, theA[iz]);
>> 241 csdn = fPion->GetInelasticCrossSection(&dp, iz, theA[iz]);
>> 242 theGlauberFacPiMinus[iz] = csdn/csup;
>> 243
>> 244 if(verboseLevel > 0) {
>> 245 G4cout << "Z= " << iz << " A= " << theA[iz]
>> 246 << " factorPiPlus= " << theGlauberFacPiPlus[iz]
>> 247 << " factorPiMinus= " << theGlauberFacPiMinus[iz]
>> 248 << G4endl;
>> 249 }
>> 250 }
>> 251
>> 252 theLowEPiPlus[1] = theLowEPiMinus[1]= 1.0;
>> 253 dp.SetDefinition(thePiPlus);
>> 254 dp.SetKineticEnergy(fLowEnergy);
>> 255 for(G4int iz=2; iz<93; ++iz) {
>> 256 theLowEPiPlus[iz] = fPion->GetInelasticCrossSection(&dp, iz, theA[iz])
>> 257 /CoulombFactorPiPlus(fLowEnergy, iz);
>> 258 }
234 259
235 dp.SetDefinition(G4PionMinus::PionMinus()); << 260 dp.SetDefinition(G4PionMinus::PionMinus());
236 for (G4int iz=2; iz<93; ++iz) { << 261 for(G4int iz=2; iz<93; ++iz) {
237 theLowEPiMinus[iz] = fPion->GetInelasticCr << 262 theLowEPiMinus[iz] = fPion->GetInelasticCrossSection(&dp, iz, theA[iz])
238 /FactorPiMinus(fLowEnergy); << 263 /FactorPiMinus(fLowEnergy);
239 264
240 if (verboseLevel > 1) { << 265 if(verboseLevel > 0) {
241 G4cout << "Z= " << iz << " A= " << the << 266 G4cout << "Z= " << iz << " A= " << theA[iz]
242 << " LowEtorPiPlus= " << theLowEPiPlus[ << 267 << " LowEtorPiPlus= " << theLowEPiPlus[iz]
243 << " LowEtorPiMinus= " << theLowEPiMinu << 268 << " LowEtorPiMinus= " << theLowEPiMinus[iz]
244 << G4endl; << 269 << G4endl;
>> 270 }
245 } 271 }
246 } 272 }
247 } 273 }
248 274
249 //....oooOO0OOooo........oooOO0OOooo........oo 275 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
250 276
251 G4double G4BGGPionInelasticXS::CoulombFactorPi 277 G4double G4BGGPionInelasticXS::CoulombFactorPiPlus(G4double kinEnergy, G4int Z)
252 { 278 {
253 return (kinEnergy > 0.0) ? 279 return (kinEnergy > 0.0) ?
254 G4NuclearRadii::CoulombFactor(Z, theA[Z], 280 G4NuclearRadii::CoulombFactor(Z, theA[Z], thePiPlus, kinEnergy) : 0.0;
255 } 281 }
256 282
257 //....oooOO0OOooo........oooOO0OOooo........oo 283 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
258 284
259 G4double G4BGGPionInelasticXS::FactorPiMinus(G 285 G4double G4BGGPionInelasticXS::FactorPiMinus(G4double kinEnergy)
260 { 286 {
261 return 1.0/std::sqrt(kinEnergy); 287 return 1.0/std::sqrt(kinEnergy);
262 } 288 }
263 289
264 //....oooOO0OOooo........oooOO0OOooo........oo 290 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
265 291
266 void 292 void
267 G4BGGPionInelasticXS::CrossSectionDescription( 293 G4BGGPionInelasticXS::CrossSectionDescription(std::ostream& outFile) const
268 { 294 {
269 outFile << "The Barashenkov-Glauber-Gribov c 295 outFile << "The Barashenkov-Glauber-Gribov cross section handles inelastic\n"
270 << "pion scattering from nuclei at a 296 << "pion scattering from nuclei at all energies. The Barashenkov\n"
271 << "parameterization is used below 9 297 << "parameterization is used below 91 GeV and the Glauber-Gribov\n"
272 << "parameterization is used above 9 298 << "parameterization is used above 91 GeV.\n";
273 } 299 }
274 300
275 //....oooOO0OOooo........oooOO0OOooo........oo 301 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
276 302