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25 //
26 //
27 // Geant4 class G4HadronicBuilder
28 //
29 // Author V.Ivanchenko 14.05.2020
30 //
31
32 #include "G4HadronicBuilder.hh"
33 #include "G4HadParticles.hh"
34 #include "G4HadProcesses.hh"
35
36 #include "G4ParticleDefinition.hh"
37 #include "G4ParticleTable.hh"
38 #include "G4PhysicsListHelper.hh"
39 #include "G4SystemOfUnits.hh"
40
41 #include "G4HadronicParameters.hh"
42
43 #include "G4TheoFSGenerator.hh"
44 #include "G4FTFModel.hh"
45 #include "G4ExcitedStringDecay.hh"
46 #include "G4GeneratorPrecompoundInterface.hh"
47
48 #include "G4QGSModel.hh"
49 #include "G4QGSParticipants.hh"
50 #include "G4QGSMFragmentation.hh"
51 #include "G4QuasiElasticChannel.hh"
52
53 #include "G4CascadeInterface.hh"
54 #include "G4CrossSectionDataSetRegistry.hh"
55 #include "G4CrossSectionInelastic.hh"
56 #include "G4CrossSectionElastic.hh"
57 #include "G4HadronElastic.hh"
58 #include "G4CrossSectionDataSetRegistry.hh"
59
60 #include "G4HadronElasticProcess.hh"
61 #include "G4HadronInelasticProcess.hh"
62
63 #include "G4DecayTable.hh"
64 #include "G4VDecayChannel.hh"
65 #include "G4PhaseSpaceDecayChannel.hh"
66
67 #include "G4PreCompoundModel.hh"
68 #include "G4INCLXXInterface.hh"
69 #include "G4ComponentAntiNuclNuclearXS.hh"
70
71
72
73 void G4HadronicBuilder::BuildFTFP_BERT(const std::vector<G4int>& partList,
74 G4bool bert, const G4String& xsName) {
75
76 G4HadronicParameters* param = G4HadronicParameters::Instance();
77 G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
78
79 auto theModel = new G4TheoFSGenerator("FTFP");
80 auto theStringModel = new G4FTFModel();
81 theStringModel->SetFragmentationModel(new G4ExcitedStringDecay());
82 theModel->SetHighEnergyGenerator( theStringModel );
83 theModel->SetTransport( new G4GeneratorPrecompoundInterface() );
84 theModel->SetMaxEnergy( param->GetMaxEnergy() );
85
86 G4CascadeInterface* theCascade = nullptr;
87 if(bert) {
88 theCascade = new G4CascadeInterface();
89 theCascade->SetMaxEnergy( param->GetMaxEnergyTransitionFTF_Cascade() );
90 theModel->SetMinEnergy( param->GetMinEnergyTransitionFTF_Cascade() );
91 }
92
93 auto xsinel = G4HadProcesses::InelasticXS( xsName );
94
95 G4ParticleTable* table = G4ParticleTable::GetParticleTable();
96 for( auto & pdg : partList ) {
97
98 auto part = table->FindParticle( pdg );
99 if ( part == nullptr ) { continue; }
100
101 auto hadi = new G4HadronInelasticProcess( part->GetParticleName()+"Inelastic", part );
102 hadi->AddDataSet( xsinel );
103 hadi->RegisterMe( theModel );
104 if( theCascade != nullptr ) hadi->RegisterMe( theCascade );
105 if( param->ApplyFactorXS() ) hadi->MultiplyCrossSectionBy( param->XSFactorHadronInelastic() );
106 ph->RegisterProcess(hadi, part);
107 }
108 }
109
110 void G4HadronicBuilder::BuildFTFQGSP_BERT(const std::vector<G4int>& partList,
111 G4bool bert, const G4String& xsName) {
112
113 G4HadronicParameters* param = G4HadronicParameters::Instance();
114 G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
115
116 auto theModel = new G4TheoFSGenerator("FTFQGSP");
117 auto theStringModel = new G4FTFModel();
118 theStringModel->SetFragmentationModel(new G4ExcitedStringDecay( new G4QGSMFragmentation() ) );
119 theModel->SetHighEnergyGenerator( theStringModel );
120 theModel->SetTransport( new G4GeneratorPrecompoundInterface() );
121 theModel->SetMaxEnergy( param->GetMaxEnergy() );
122
123 G4CascadeInterface* theCascade = nullptr;
124 if(bert) {
125 theCascade = new G4CascadeInterface();
126 theCascade->SetMaxEnergy( param->GetMaxEnergyTransitionFTF_Cascade() );
127 theModel->SetMinEnergy( param->GetMinEnergyTransitionFTF_Cascade() );
128 }
129
130 auto xsinel = G4HadProcesses::InelasticXS( xsName );
131
132 G4ParticleTable* table = G4ParticleTable::GetParticleTable();
133 for( auto & pdg : partList ) {
134
135 auto part = table->FindParticle( pdg );
136 if ( part == nullptr ) { continue; }
137
138 auto hadi = new G4HadronInelasticProcess( part->GetParticleName()+"Inelastic", part );
139 hadi->AddDataSet( xsinel );
140 hadi->RegisterMe( theModel );
141 if( theCascade != nullptr ) hadi->RegisterMe( theCascade );
142 if( param->ApplyFactorXS() ) hadi->MultiplyCrossSectionBy( param->XSFactorHadronInelastic() );
143 ph->RegisterProcess(hadi, part);
144 }
145 }
146
147 void G4HadronicBuilder::BuildQGSP_FTFP_BERT(const std::vector<G4int>& partList,
148 G4bool bert, G4bool quasiElastic,
149 const G4String& xsName) {
150
151 G4HadronicParameters* param = G4HadronicParameters::Instance();
152 G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
153
154 auto theTransport = new G4GeneratorPrecompoundInterface();
155
156 auto theHEModel = new G4TheoFSGenerator("QGSP");
157 G4QGSModel< G4QGSParticipants >* theQGSModel = new G4QGSModel< G4QGSParticipants >;
158 theQGSModel->SetFragmentationModel( new G4ExcitedStringDecay( new G4QGSMFragmentation() ) );
159 theHEModel->SetTransport( theTransport );
160 theHEModel->SetHighEnergyGenerator( theQGSModel );
161 if (quasiElastic) {
162 theHEModel->SetQuasiElasticChannel(new G4QuasiElasticChannel());
163 }
164 theHEModel->SetMinEnergy( param->GetMinEnergyTransitionQGS_FTF() );
165 theHEModel->SetMaxEnergy( param->GetMaxEnergy() );
166
167 auto theLEModel = new G4TheoFSGenerator("FTFP");
168 auto theFTFModel = new G4FTFModel();
169 theFTFModel->SetFragmentationModel(new G4ExcitedStringDecay());
170 theLEModel->SetHighEnergyGenerator( theFTFModel );
171 theLEModel->SetTransport( theTransport );
172 theLEModel->SetMaxEnergy( param->GetMaxEnergyTransitionQGS_FTF() );
173
174 G4CascadeInterface* theCascade = nullptr;
175 if(bert) {
176 theCascade = new G4CascadeInterface();
177 theCascade->SetMaxEnergy( param->GetMaxEnergyTransitionFTF_Cascade() );
178 theLEModel->SetMinEnergy( param->GetMinEnergyTransitionFTF_Cascade() );
179 }
180
181 auto xsinel = G4HadProcesses::InelasticXS( xsName );
182
183 G4ParticleTable* table = G4ParticleTable::GetParticleTable();
184 for( auto & pdg : partList ) {
185
186 auto part = table->FindParticle( pdg );
187 if ( part == nullptr ) { continue; }
188
189 auto hadi = new G4HadronInelasticProcess( part->GetParticleName()+"Inelastic", part );
190 hadi->AddDataSet( xsinel );
191 hadi->RegisterMe( theHEModel );
192 hadi->RegisterMe( theLEModel );
193 if(theCascade != nullptr) hadi->RegisterMe( theCascade );
194 if( param->ApplyFactorXS() ) hadi->MultiplyCrossSectionBy( param->XSFactorHadronInelastic() );
195 ph->RegisterProcess(hadi, part);
196 }
197 }
198
199 void G4HadronicBuilder::BuildINCLXX(const std::vector<G4int>& partList,
200 G4bool bert, const G4String& xsName) {
201
202 // FTF
203 G4HadronicParameters* param = G4HadronicParameters::Instance();
204 G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
205
206 auto theModel = new G4TheoFSGenerator("FTFP");
207 auto theStringModel = new G4FTFModel();
208 theStringModel->SetFragmentationModel(new G4ExcitedStringDecay());
209 theModel->SetHighEnergyGenerator( theStringModel );
210 theModel->SetTransport( new G4GeneratorPrecompoundInterface() );
211 theModel->SetMaxEnergy( param->GetMaxEnergy() );
212
213 G4CascadeInterface* theCascade = nullptr;
214 if(bert) {
215 theCascade = new G4CascadeInterface();
216 theCascade->SetMaxEnergy( param->GetMaxEnergyTransitionFTF_Cascade() );
217 theModel->SetMinEnergy( param->GetMinEnergyTransitionFTF_Cascade() );
218 }
219
220 // INCLXX
221 auto theModelINCLXX = new G4INCLXXInterface();
222 theModelINCLXX->SetMinEnergy( param->GetMinEnergyINCLXX_Pbar() );
223 theModelINCLXX->SetMaxEnergy( param->GetMaxEnergyINCLXX_Pbar() );
224
225 //
226 auto xsinel = G4HadProcesses::InelasticXS( xsName );
227
228 G4ParticleTable* table = G4ParticleTable::GetParticleTable();
229 for( auto & pdg : partList ) {
230
231 auto part = table->FindParticle( pdg );
232 if ( part == nullptr ) { continue; }
233
234 auto hadi = new G4HadronInelasticProcess( part->GetParticleName()+"Inelastic", part );
235 if( pdg == -2212 ) { // pbar use INCLXX
236 hadi->AddDataSet( xsinel );
237 hadi->RegisterMe( theModelINCLXX );
238 if( param->ApplyFactorXS() ) hadi->MultiplyCrossSectionBy( param->XSFactorHadronInelastic() );
239 ph->RegisterProcess(hadi, part);
240 } else { // other anti-X use FTF
241 hadi->AddDataSet( xsinel );
242 hadi->RegisterMe( theModel );
243 if( theCascade != nullptr ) hadi->RegisterMe( theCascade );
244 if( param->ApplyFactorXS() ) hadi->MultiplyCrossSectionBy( param->XSFactorHadronInelastic() );
245 ph->RegisterProcess(hadi, part);
246 }
247 }
248 }
249
250 void G4HadronicBuilder::BuildElastic(const std::vector<G4int>& partList) {
251
252 G4HadronicParameters* param = G4HadronicParameters::Instance();
253 G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
254
255 auto xsel = G4HadProcesses::ElasticXS("Glauber-Gribov");
256
257 auto elModel = new G4HadronElastic();
258 elModel->SetMaxEnergy( param->GetMaxEnergy() );
259
260 G4ParticleTable* table = G4ParticleTable::GetParticleTable();
261 for( auto & pdg : partList ) {
262
263 auto part = table->FindParticle( pdg );
264 if ( part == nullptr ) { continue; }
265
266 auto hade = new G4HadronElasticProcess();
267 hade->AddDataSet( xsel );
268 hade->RegisterMe( elModel );
269 if( param->ApplyFactorXS() ) hade->MultiplyCrossSectionBy( param->XSFactorHadronElastic() );
270 ph->RegisterProcess(hade, part);
271 }
272 }
273
274 void G4HadronicBuilder::BuildHyperonsFTFP_BERT() {
275 // For hyperons, Bertini is used at low energies;
276 // for anti-hyperons, FTFP can be used down to zero kinetic energy.
277 BuildFTFP_BERT(G4HadParticles::GetHyperons(), true, "Glauber-Gribov");
278 BuildFTFP_BERT(G4HadParticles::GetAntiHyperons(), false, "Glauber-Gribov");
279 }
280
281 void G4HadronicBuilder::BuildHyperonsFTFQGSP_BERT() {
282 // For hyperons, Bertini is used at low energies;
283 // for anti-hyperons, FTFP can be used down to zero kinetic energy.
284 BuildFTFQGSP_BERT(G4HadParticles::GetHyperons(), true, "Glauber-Gribov");
285 BuildFTFQGSP_BERT(G4HadParticles::GetAntiHyperons(), false, "Glauber-Gribov");
286 }
287
288 void G4HadronicBuilder::BuildHyperonsQGSP_FTFP_BERT(G4bool qElastic) {
289 // For hyperons, Bertini is used at low energies;
290 // for anti-hyperons, FTFP can be used down to zero kinetic energy.
291 // QGSP is used at high energies in all cases.
292 BuildQGSP_FTFP_BERT(G4HadParticles::GetHyperons(), true, qElastic, "Glauber-Gribov");
293 BuildQGSP_FTFP_BERT(G4HadParticles::GetAntiHyperons(), false, qElastic, "Glauber-Gribov");
294 }
295
296 void G4HadronicBuilder::BuildKaonsFTFP_BERT() {
297 BuildFTFP_BERT(G4HadParticles::GetKaons(), true, "Glauber-Gribov");
298 }
299
300 void G4HadronicBuilder::BuildKaonsFTFQGSP_BERT() {
301 BuildFTFQGSP_BERT(G4HadParticles::GetKaons(), true, "Glauber-Gribov");
302 }
303
304 void G4HadronicBuilder::BuildKaonsQGSP_FTFP_BERT(G4bool qElastic) {
305 BuildQGSP_FTFP_BERT(G4HadParticles::GetKaons(), true, qElastic, "Glauber-Gribov");
306 }
307
308 void G4HadronicBuilder::BuildAntiLightIonsFTFP() {
309 BuildFTFP_BERT(G4HadParticles::GetLightAntiIons(), false, "AntiAGlauber");
310 }
311
312 //void G4HadronicBuilder::BuildAntiLightIonsQGSP_FTFP(G4bool qElastic) {
313 // Note: currently QGSP cannot be applied for any ion or anti-ion!
314 // BuildQGSP_FTFP_BERT(G4HadParticles::GetLightAntiIons(), false, qElastic, "AntiAGlauber");
315 //}
316
317 void G4HadronicBuilder::BuildAntiLightIonsINCLXX() {
318 BuildINCLXX(G4HadParticles::GetLightAntiIons(), false, "AntiAGlauber");
319 }
320
321 void G4HadronicBuilder::BuildBCHadronsFTFP_BERT() {
322 if( G4HadronicParameters::Instance()->EnableBCParticles() ) {
323 // Bertini is not applicable for charm and bottom hadrons, therefore FTFP is used
324 // down to zero kinetic energy (but at very low energies, a dummy model is used
325 // that returns the projectile heavy hadron in the final state).
326 BuildFTFP_BERT(G4HadParticles::GetBCHadrons(), false, "Glauber-Gribov");
327 BuildDecayTableForBCHadrons();
328 }
329 }
330
331 void G4HadronicBuilder::BuildBCHadronsFTFQGSP_BERT() {
332 if( G4HadronicParameters::Instance()->EnableBCParticles() ) {
333 // Bertini is not applicable for charm and bottom hadrons, therefore FTFP is used
334 // down to zero kinetic energy (but at very low energies, a dummy model is used
335 // that returns the projectile heavy hadron in the final state).
336 BuildFTFQGSP_BERT(G4HadParticles::GetBCHadrons(), false, "Glauber-Gribov");
337 BuildDecayTableForBCHadrons();
338 }
339 }
340
341 void G4HadronicBuilder::BuildBCHadronsQGSP_FTFP_BERT(G4bool qElastic) {
342 if( G4HadronicParameters::Instance()->EnableBCParticles() ) {
343 // Bertini is not applicable for charm and bottom hadrons, therefore FTFP is used
344 // down to zero kinetic energy (but at very low energies, a dummy model is used
345 // that returns the projectile heavy hadron in the final state).
346 // QGSP is used at high energies in all cases.
347 BuildQGSP_FTFP_BERT(G4HadParticles::GetBCHadrons(), false, qElastic, "Glauber-Gribov");
348 BuildDecayTableForBCHadrons();
349 }
350 }
351
352 void G4HadronicBuilder::BuildDecayTableForBCHadrons() {
353 // Geant4 does not define the decay of most of charmed and bottom hadrons.
354 // The reason is that most of these heavy hadrons have many different
355 // decay channels, with a complex dynamics, quite different from the flat
356 // phase space kinematical treatment used in Geant4 for most of hadronic decays.
357 // High-energy experiments usually use dedicated Monte Carlo Event Generators
358 // for the decays of charmed and bottom hadrons; therefore, these heavy
359 // hadrons, which are passed to Geant4 as primary tracks, have pre-assigned
360 // decays. Moreover, no charmed or bottom secondary hadrons were created
361 // in Geant4 hadronic interactions before Geant4 10.7.
362 // With the extension of Geant4 hadronic interactions to charmed and bottom
363 // hadrons, in version Geant4 10.7, we do need to define decays in Geant4
364 // for these heavy hadrons, for two reasons:
365 // 1. For testing purposes, unless we pre-assign decays of heavy hadrons
366 // (as the HEP experiments normally do by using MC Event Generators);
367 // 2. To avoid crashes (due to missing decay channels) whenever charmed or
368 // bottom secondary hadrons are produced by Geant4 hadronic interactions,
369 // even with ordinary (i.e. not heavy) hadron projectiles, because in
370 // this case we cannot (easily!) pre-assign decays to them.
371 // Given that 1. is just a convenience for testing, and 2. happens rather
372 // rarely in practice - because very few primary energetic (i.e. boosted)
373 // heavy hadrons fly enough to reach the beam pipe or the tracker and
374 // having an inelastic interaction there, and the very low probability
375 // to create a heavy hadrons from the string fragmentation in ordinary
376 // (i.e. not heavy) hadronic interactions - there is no need in practice
377 // to define accurately the decays of heavy hadrons in Geant4.
378 // So, for our practical purposes, it is enough to define very simple,
379 // "dummy" decays of charmed and bottom hadrons.
380 // Here we use a single, fully hadronic channel, with 2 or 3 or 4
381 // daughters, for each of these heavy hadrons, assigning to this single
382 // decay channel a 100% branching ratio, although in reality such a
383 // channel is one between hundreds of possible ones (and therefore its
384 // real branching ratio is typical of a few per-cent); moreover, we treat
385 // the decay without any dynamics, i.e. with a flat phase space kinematical
386 // treatment.
387 // Note that some of the charmed and bottom hadrons such as SigmaC++,
388 // SigmaC+, SigmaC0, SigmaB+, SigmaB0 and SigmaB- have one dominant
389 // decay channel (to LambdaC/B + Pion) which is already defined in Geant4.
390 // This is not the case for EtaC, JPsi and Upsilon, whose decays need to
391 // be defined here (although they decay so quickly that their hadronic
392 // interactions can be neglected, as we do for Pi0 and Sigma0).
393 // Note that our definition of the decay tables for these heavy hadrons
394 // do not interfere with the pre-assign decays of primary charmed and
395 // bottom tracks made by the HEP experiments. In fact, pre-assign decays
396 // have priority over (i.e. override) decay tables.
397 static G4bool isFirstCall = true;
398 if ( ! isFirstCall ) return;
399 isFirstCall = false;
400 G4ParticleTable* particleTable = G4ParticleTable::GetParticleTable();
401 for ( auto & pdg : G4HadParticles::GetBCHadrons() ) {
402 auto part = particleTable->FindParticle( pdg );
403 if ( part == nullptr ) {
404 G4cout << "G4HadronicBuilder::BuildDecayTableForBCHadrons : ERROR ! particlePDG="
405 << pdg << " is not defined !" << G4endl;
406 continue;
407 }
408 if ( part->GetDecayTable() ) {
409 G4cout << "G4HadronicBuilder::BuildDecayTableForBCHadrons : WARNING ! particlePDG="
410 << pdg << " has already a decay table defined !" << G4endl;
411 continue;
412 }
413 G4DecayTable* decayTable = new G4DecayTable;
414 const G4int numberDecayChannels = 1;
415 G4VDecayChannel** mode = new G4VDecayChannel*[ numberDecayChannels ];
416 for ( G4int i = 0; i < numberDecayChannels; ++i ) mode[i] = nullptr;
417 switch ( pdg ) {
418 // Charmed mesons
419 case 411 : // D+
420 mode[0] = new G4PhaseSpaceDecayChannel( "D+", 1.0, 3, "kaon-", "pi+", "pi+" );
421 break;
422 case -411 : // D-
423 mode[0] = new G4PhaseSpaceDecayChannel( "D-", 1.0, 3, "kaon+", "pi-", "pi-" );
424 break;
425 case 421 : // D0
426 mode[0] = new G4PhaseSpaceDecayChannel( "D0", 1.0, 3, "kaon-", "pi+", "pi0" );
427 break;
428 case -421 : // anti_D0
429 mode[0] = new G4PhaseSpaceDecayChannel( "anti_D0", 1.0, 3, "kaon+", "pi-", "pi0" );
430 break;
431 case 431 : // Ds+
432 mode[0] = new G4PhaseSpaceDecayChannel( "Ds+", 1.0, 3, "kaon+", "kaon-", "pi+" );
433 break;
434 case -431 : // Ds-
435 mode[0] = new G4PhaseSpaceDecayChannel( "Ds-", 1.0, 3, "kaon-", "kaon+", "pi-" );
436 break;
437 // Bottom mesons
438 case 521 : // B+
439 mode[0] = new G4PhaseSpaceDecayChannel( "B+", 1.0, 3, "anti_D0", "pi+", "pi0" );
440 break;
441 case -521 : // B-
442 mode[0] = new G4PhaseSpaceDecayChannel( "B-", 1.0, 3, "D0", "pi-", "pi0" );
443 break;
444 case 511 : // B0
445 mode[0] = new G4PhaseSpaceDecayChannel( "B0", 1.0, 3, "D-", "pi+", "pi0" );
446 break;
447 case -511 : // anti_B0
448 mode[0] = new G4PhaseSpaceDecayChannel( "anti_B0", 1.0, 3, "D+", "pi-", "pi0" );
449 break;
450 case 531 : // Bs0
451 mode[0] = new G4PhaseSpaceDecayChannel( "Bs0", 1.0, 3, "Ds-", "pi+", "pi0" );
452 break;
453 case -531 : // anti_Bs0
454 mode[0] = new G4PhaseSpaceDecayChannel( "anti_Bs0", 1.0, 3, "Ds+", "pi-", "pi0" );
455 break;
456 case 541 : // Bc+
457 mode[0] = new G4PhaseSpaceDecayChannel( "Bc+", 1.0, 2, "J/psi", "pi+" );
458 break;
459 case -541 : // Bc-
460 mode[0] = new G4PhaseSpaceDecayChannel( "Bc-", 1.0, 2, "J/psi", "pi-" );
461 break;
462 // Charmed baryons (and anti-baryons)
463 case 4122 : // lambda_c+
464 mode[0] = new G4PhaseSpaceDecayChannel( "lambda_c+", 1.0, 3, "proton", "kaon-", "pi+" );
465 break;
466 case -4122 : // anti_lambda_c+
467 mode[0] = new G4PhaseSpaceDecayChannel( "anti_lambda_c+", 1.0, 3, "anti_proton", "kaon+", "pi-" );
468 break;
469 case 4232 : // xi_c+
470 mode[0] = new G4PhaseSpaceDecayChannel( "xi_c+", 1.0, 3, "sigma+", "kaon-", "pi+" );
471 break;
472 case -4232 : // anti_xi_c+
473 mode[0] = new G4PhaseSpaceDecayChannel( "anti_xi_c+", 1.0, 3, "anti_sigma+", "kaon+", "pi-" );
474 break;
475 case 4132 : // xi_c0
476 mode[0] = new G4PhaseSpaceDecayChannel( "xi_c0", 1.0, 3, "lambda", "kaon-", "pi+" );
477 break;
478 case -4132 : // anti_xi_c0
479 mode[0] = new G4PhaseSpaceDecayChannel( "anti_xi_c0", 1.0, 3, "anti_lambda", "kaon+", "pi-" );
480 break;
481 case 4332 : // omega_c0
482 mode[0] = new G4PhaseSpaceDecayChannel( "omega_c0", 1.0, 3, "xi0", "kaon-", "pi+" );
483 break;
484 case -4332 : // anti_omega_c0
485 mode[0] = new G4PhaseSpaceDecayChannel( "anti_omega_c0", 1.0, 3, "anti_xi0", "kaon+", "pi-" );
486 break;
487 // Bottom baryons (and anti-baryons)
488 case 5122 : // lambda_b
489 mode[0] = new G4PhaseSpaceDecayChannel( "lambda_b", 1.0, 4, "lambda_c+", "pi+", "pi-", "pi-" );
490 break;
491 case -5122 : // anti_lambda_b
492 mode[0] = new G4PhaseSpaceDecayChannel( "anti_lambda_b", 1.0, 4, "anti_lambda_c+", "pi-", "pi+", "pi+" );
493 break;
494 case 5232 : // xi_b0
495 mode[0] = new G4PhaseSpaceDecayChannel( "xi_b0", 1.0, 3, "lambda_c+", "kaon-", "pi0" );
496 break;
497 case -5232 : // anti_xi_b0
498 mode[0] = new G4PhaseSpaceDecayChannel( "anti_xi_b0", 1.0, 3, "anti_lambda_c+", "kaon+", "pi0" );
499 break;
500 case 5132 : // xi_b-
501 mode[0] = new G4PhaseSpaceDecayChannel( "xi_b-", 1.0, 3, "lambda_c+", "kaon-", "pi-" );
502 break;
503 case -5132 : // anti_xi_b-
504 mode[0] = new G4PhaseSpaceDecayChannel( "anti_xi_b-", 1.0, 3, "anti_lambda_c+", "kaon+", "pi+" );
505 break;
506 case 5332 : // omega_b-
507 mode[0] = new G4PhaseSpaceDecayChannel( "omega_b-", 1.0, 3, "xi_c+", "kaon-", "pi-" );
508 break;
509 case -5332 : // anti_omega_b-
510 mode[0] = new G4PhaseSpaceDecayChannel( "anti_omega_b-", 1.0, 3, "anti_xi_c+", "kaon+", "pi+" );
511 break;
512 default :
513 G4cout << "G4HadronicBuilder::BuildDecayTableForBCHadrons : UNKNOWN particlePDG=" << pdg << G4endl;
514 } // End of the switch
515
516 for ( G4int index = 0; index < numberDecayChannels; ++index ) decayTable->Insert( mode[index] );
517 delete [] mode;
518 part->SetDecayTable( decayTable );
519 } // End of the for loop over heavy hadrons
520 // Add now the decay for etac, JPsi and Upsilon because these can be produced as
521 // secondaries in hadronic interactions, while they are not part of the heavy
522 // hadrons included in G4HadParticles::GetBCHadrons() because they live too shortly
523 // and therefore their hadronic interactions can be neglected (as we do for pi0 and sigma0).
524 if ( ! G4Etac::Definition()->GetDecayTable() ) {
525 G4DecayTable* decayTable = new G4DecayTable;
526 const G4int numberDecayChannels = 1;
527 G4VDecayChannel** mode = new G4VDecayChannel*[ numberDecayChannels ];
528 for ( G4int i = 0; i < numberDecayChannels; ++i ) mode[i] = nullptr;
529 mode[0] = new G4PhaseSpaceDecayChannel( "etac", 1.0, 3, "eta", "pi+", "pi-" );
530 for ( G4int index = 0; index < numberDecayChannels; ++index ) decayTable->Insert( mode[index] );
531 delete [] mode;
532 G4Etac::Definition()->SetDecayTable( decayTable );
533 }
534 if ( ! G4JPsi::Definition()->GetDecayTable() ) {
535 G4DecayTable* decayTable = new G4DecayTable;
536 const G4int numberDecayChannels = 1;
537 G4VDecayChannel** mode = new G4VDecayChannel*[ numberDecayChannels ];
538 for ( G4int i = 0; i < numberDecayChannels; ++i ) mode[i] = nullptr;
539 mode[0] = new G4PhaseSpaceDecayChannel( "J/psi", 1.0, 3, "pi0", "pi+", "pi-" );
540 for ( G4int index = 0; index < numberDecayChannels; ++index ) decayTable->Insert( mode[index] );
541 delete [] mode;
542 G4JPsi::Definition()->SetDecayTable( decayTable );
543 }
544 if ( ! G4Upsilon::Definition()->GetDecayTable() ) {
545 G4DecayTable* decayTable = new G4DecayTable;
546 const G4int numberDecayChannels = 1;
547 G4VDecayChannel** mode = new G4VDecayChannel*[ numberDecayChannels ];
548 for ( G4int i = 0; i < numberDecayChannels; ++i ) mode[i] = nullptr;
549 mode[0] = new G4PhaseSpaceDecayChannel( "Upsilon", 1.0, 3, "eta_prime", "pi+", "pi-" );
550 for ( G4int index = 0; index < numberDecayChannels; ++index ) decayTable->Insert( mode[index] );
551 delete [] mode;
552 G4Upsilon::Definition()->SetDecayTable( decayTable );
553 }
554 }
555
556
557 void G4HadronicBuilder::BuildHyperNucleiFTFP_BERT() {
558 if ( G4HadronicParameters::Instance()->EnableHyperNuclei() ) {
559 // Bertini intra-nuclear cascade model is currently not applicable for light
560 // hypernuclei, therefore FTFP is used down to zero kinetic energy (but at
561 // very low energies, a dummy model is used that simply returns the projectile
562 // hypernucleus in the final state).
563 BuildFTFP_BERT( G4HadParticles::GetHyperNuclei(), false, "Glauber-Gribov" );
564 }
565 }
566
567
568 void G4HadronicBuilder::BuildHyperAntiNucleiFTFP_BERT() {
569 if ( G4HadronicParameters::Instance()->EnableHyperNuclei() ) {
570 // FTFP can be used down to zero kinetic energy.
571 BuildFTFP_BERT( G4HadParticles::GetHyperAntiNuclei(), false, "AntiAGlauber" );
572 }
573 }
574
575
576 void G4HadronicBuilder::BuildHyperNucleiFTFP_INCLXX() {
577 if ( G4HadronicParameters::Instance()->EnableHyperNuclei() ) {
578 BuildFTFP_INCLXX( G4HadParticles::GetHyperNuclei(), "Glauber-Gribov" );
579 }
580 }
581
582
583 void G4HadronicBuilder::BuildFTFP_INCLXX( const std::vector< G4int >& partList, const G4String& xsName ) {
584 G4HadronicParameters* param = G4HadronicParameters::Instance();
585 G4PhysicsListHelper* ph = G4PhysicsListHelper::GetPhysicsListHelper();
586 auto theTheoFSModel = new G4TheoFSGenerator( "FTFP" );
587 auto theStringModel = new G4FTFModel;
588 theStringModel->SetFragmentationModel( new G4ExcitedStringDecay );
589 theTheoFSModel->SetHighEnergyGenerator( theStringModel );
590 theTheoFSModel->SetTransport( new G4GeneratorPrecompoundInterface );
591 theTheoFSModel->SetMaxEnergy( param->GetMaxEnergy() );
592 theTheoFSModel->SetMinEnergy( 15.0*CLHEP::GeV );
593 G4VPreCompoundModel* thePrecoModel = new G4PreCompoundModel;
594 thePrecoModel->SetMinEnergy( 0.0 );
595 thePrecoModel->SetMaxEnergy( 2.0*CLHEP::MeV );
596 G4INCLXXInterface* theINCLXXModel = new G4INCLXXInterface( thePrecoModel );
597 theINCLXXModel->SetMinEnergy( 1.0*CLHEP::MeV );
598 theINCLXXModel->SetMaxEnergy( 20.0*CLHEP::GeV );
599 auto xsinel = G4HadProcesses::InelasticXS( xsName );
600 G4ParticleTable* table = G4ParticleTable::GetParticleTable();
601 for ( auto & pdg : partList ) {
602 auto part = table->FindParticle( pdg );
603 if ( part == nullptr ) continue;
604 auto hadi = new G4HadronInelasticProcess( part->GetParticleName()+"Inelastic", part );
605 hadi->AddDataSet( xsinel );
606 hadi->RegisterMe( theTheoFSModel );
607 hadi->RegisterMe( theINCLXXModel );
608 if ( param->ApplyFactorXS() ) hadi->MultiplyCrossSectionBy( param->XSFactorHadronInelastic() );
609 ph->RegisterProcess( hadi, part );
610 }
611 }
612