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Geant4/physics_lists/constructors/hadron_inelastic/src/G4HadronPhysicsQGSP_BERT.cc

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 25 //
 26 //
 27 //---------------------------------------------------------------------------
 28 //
 29 // ClassName:   G4HadronPhysicsQGSP_BERT
 30 //
 31 // Author: 2002 J.P. Wellisch
 32 //
 33 // Modified:
 34 // 23.11.2005 G.Folger: migration to non static particles
 35 // 08.06.2006 V.Ivanchenko: remove stopping
 36 // 20.06.2006 G.Folger: Bertini applies to Kaons, i.e. use SetMinEnergy instead of SetMinPionEnergy
 37 // 25.04.2007 G.Folger: Add code for quasielastic
 38 // 10.12.2007 G.Folger: Add projectilediffrative option for proton/neutron, off by default
 39 // 31.10.2012 A.Ribon: Use G4MiscBuilder
 40 // 19.03.2013 A.Ribon: Replace LEP with FTFP
 41 // 05.05.2020 A.Ribon: Use QGSP for antibaryons at high energies
 42 // 07.05.2020 A.Ribon: Use QGSP for hyperons (and anti-hyperons) at high energies
 43 //
 44 //----------------------------------------------------------------------------
 45 //
 46 #include <iomanip>   
 47 
 48 #include "G4HadronPhysicsQGSP_BERT.hh"
 49 
 50 #include "globals.hh"
 51 #include "G4ios.hh"
 52 #include "G4SystemOfUnits.hh"
 53 #include "G4ParticleDefinition.hh"
 54 #include "G4ParticleTable.hh"
 55 
 56 #include "G4PiKBuilder.hh"
 57 #include "G4FTFPPiKBuilder.hh"
 58 #include "G4QGSPPiKBuilder.hh"
 59 #include "G4BertiniPiKBuilder.hh"
 60 
 61 #include "G4ProtonBuilder.hh"
 62 #include "G4FTFPProtonBuilder.hh"
 63 #include "G4QGSPProtonBuilder.hh"
 64 #include "G4BertiniProtonBuilder.hh"
 65 
 66 #include "G4NeutronBuilder.hh"
 67 #include "G4FTFPNeutronBuilder.hh"
 68 #include "G4QGSPNeutronBuilder.hh"
 69 #include "G4BertiniNeutronBuilder.hh"
 70 
 71 #include "G4MesonConstructor.hh"
 72 #include "G4BaryonConstructor.hh"
 73 #include "G4ShortLivedConstructor.hh"
 74 #include "G4IonConstructor.hh"
 75 
 76 #include "G4NeutronRadCapture.hh"
 77 #include "G4NeutronInelasticXS.hh"
 78 #include "G4NeutronCaptureXS.hh"
 79 
 80 #include "G4PhysListUtil.hh"
 81 #include "G4HadParticles.hh"
 82 #include "G4HadronicParameters.hh"
 83 #include "G4HadronicBuilder.hh"
 84 #include "G4BuilderType.hh"
 85 
 86 #include "G4PhysicsConstructorFactory.hh"
 87 //
 88 G4_DECLARE_PHYSCONSTR_FACTORY(G4HadronPhysicsQGSP_BERT);
 89 
 90 G4HadronPhysicsQGSP_BERT::G4HadronPhysicsQGSP_BERT(G4int verb)
 91     :  G4HadronPhysicsQGSP_BERT("hInelastic QGSP_BERT",true) 
 92 {
 93   G4HadronicParameters::Instance()->SetVerboseLevel(verb);
 94 }
 95 
 96 G4HadronPhysicsQGSP_BERT::G4HadronPhysicsQGSP_BERT(const G4String& name, G4bool)
 97     :  G4VPhysicsConstructor(name)
 98 {
 99   SetPhysicsType(bHadronInelastic);
100   QuasiElasticFTF= false;   // Use built-in quasi-elastic (not add-on)
101   QuasiElasticQGS= true;    // For QGS, it must use it.
102   G4HadronicParameters* param = G4HadronicParameters::Instance();
103   minQGSP_proton = minQGSP_neutron = minQGSP_pik = 
104     param->GetMinEnergyTransitionQGS_FTF();
105   maxFTFP_proton = maxFTFP_neutron = maxFTFP_pik = 
106     param->GetMaxEnergyTransitionQGS_FTF();
107   minFTFP_proton = minFTFP_neutron = minFTFP_pik = 
108     param->GetMinEnergyTransitionFTF_Cascade();
109   maxBERT_proton = maxBERT_neutron = maxBERT_pik = 
110     param->GetMaxEnergyTransitionFTF_Cascade();
111   minBERT_proton = minBERT_neutron = minBERT_pik = 0.0;    
112   param->SetEnableBCParticles(true);
113 }
114 
115 void G4HadronPhysicsQGSP_BERT::CreateModels()
116 {
117   Neutron();
118   Proton();
119   Pion();
120   Others();
121 }
122 
123 void G4HadronPhysicsQGSP_BERT::Neutron()
124 {
125   G4HadronicParameters* param = G4HadronicParameters::Instance();
126   G4bool useFactorXS = param->ApplyFactorXS();
127   //General schema:
128   // 1) Create a builder
129   // 2) Call AddBuilder
130   // 3) Configure the builder, possibly with sub-builders
131   // 4) Call builder->Build()
132   auto neu = new G4NeutronBuilder;
133   AddBuilder(neu);
134   auto qgs = new G4QGSPNeutronBuilder(QuasiElasticQGS);
135   AddBuilder(qgs);
136   qgs->SetMinEnergy(minQGSP_neutron);
137   neu->RegisterMe(qgs);
138   auto ftf = new G4FTFPNeutronBuilder(QuasiElasticFTF);
139   AddBuilder(ftf);
140   ftf->SetMinEnergy(minFTFP_neutron);
141   ftf->SetMaxEnergy(maxFTFP_neutron);
142   neu->RegisterMe(ftf);
143   auto bert = new G4BertiniNeutronBuilder;
144   AddBuilder(bert);
145   bert->SetMinEnergy(minBERT_neutron);
146   bert->SetMaxEnergy(maxBERT_neutron);
147   neu->RegisterMe(bert);
148   neu->Build();
149 
150   const G4ParticleDefinition* neutron = G4Neutron::Neutron();
151   G4HadronicProcess* inel = G4PhysListUtil::FindInelasticProcess(neutron);
152   if(nullptr != inel) { 
153     inel->AddDataSet(new G4NeutronInelasticXS()); 
154     if( useFactorXS ) inel->MultiplyCrossSectionBy( param->XSFactorNucleonInelastic() );
155   }
156   G4HadronicProcess* capture = G4PhysListUtil::FindCaptureProcess(neutron);
157   if (nullptr != capture) {
158     capture->RegisterMe(new G4NeutronRadCapture());
159   }
160 } 
161 
162 void G4HadronPhysicsQGSP_BERT::Proton()
163 {
164   G4HadronicParameters* param = G4HadronicParameters::Instance();
165   G4bool useFactorXS = param->ApplyFactorXS();
166 
167   auto pro = new G4ProtonBuilder;
168   AddBuilder(pro);
169   auto qgs = new G4QGSPProtonBuilder(QuasiElasticQGS);
170   AddBuilder(qgs);
171   qgs->SetMinEnergy(minQGSP_proton);
172   pro->RegisterMe(qgs);
173   auto ftf = new G4FTFPProtonBuilder(QuasiElasticFTF);
174   AddBuilder(ftf);
175   ftf->SetMinEnergy(minFTFP_proton);
176   ftf->SetMaxEnergy(maxFTFP_proton);
177   pro->RegisterMe(ftf);
178   auto bert = new G4BertiniProtonBuilder;
179   AddBuilder(bert);
180   bert->SetMinEnergy(minBERT_proton);
181   bert->SetMaxEnergy(maxBERT_proton);
182   pro->RegisterMe(bert);
183   pro->Build();
184 
185   const G4ParticleDefinition* proton = G4Proton::Proton();
186   G4HadronicProcess* inel = G4PhysListUtil::FindInelasticProcess(proton);
187   if(nullptr != inel) { 
188     if( useFactorXS ) inel->MultiplyCrossSectionBy( param->XSFactorNucleonInelastic() );
189   }
190 }
191 
192 void G4HadronPhysicsQGSP_BERT::Pion()
193 {
194   G4HadronicParameters* param = G4HadronicParameters::Instance();
195   G4bool useFactorXS = param->ApplyFactorXS();
196 
197   auto pik = new G4PiKBuilder;
198   AddBuilder(pik);
199   auto qgs = new G4QGSPPiKBuilder(QuasiElasticQGS);
200   AddBuilder(qgs);
201   qgs->SetMinEnergy(minQGSP_pik);
202   pik->RegisterMe(qgs);
203   auto ftf = new G4FTFPPiKBuilder(QuasiElasticFTF);
204   AddBuilder(ftf);
205   ftf->SetMinEnergy(minFTFP_pik);
206   ftf->SetMaxEnergy(maxFTFP_pik);
207   pik->RegisterMe(ftf);
208   auto bert = new G4BertiniPiKBuilder;
209   AddBuilder(bert);
210   bert->SetMinEnergy(minBERT_pik);
211   bert->SetMaxEnergy(maxBERT_pik);
212   pik->RegisterMe(bert);
213   pik->Build();
214 
215   // add cross section factor
216   if( useFactorXS ) {
217     const G4ParticleDefinition* pion = G4PionPlus::PionPlus();
218     G4HadronicProcess* inel = G4PhysListUtil::FindInelasticProcess(pion);
219     if(nullptr != inel) {
220       inel->MultiplyCrossSectionBy( param->XSFactorPionInelastic() );
221     }
222     pion = G4PionMinus::PionMinus();
223     inel = G4PhysListUtil::FindInelasticProcess(pion);
224     if(inel) { 
225       inel->MultiplyCrossSectionBy( param->XSFactorPionInelastic() );
226     }
227     G4ParticleTable* table = G4ParticleTable::GetParticleTable();
228     for( auto & pdg : G4HadParticles::GetKaons() ) {
229       auto part = table->FindParticle( pdg );
230       if ( part == nullptr ) { continue; }
231       inel = G4PhysListUtil::FindInelasticProcess(part);
232       if(nullptr != inel) { 
233         inel->MultiplyCrossSectionBy( param->XSFactorHadronInelastic() );
234       }
235     }
236   }
237 }
238 
239 void G4HadronPhysicsQGSP_BERT::Others()
240 {
241   G4HadronicParameters* param = G4HadronicParameters::Instance();
242 
243   // high energy particles
244   if( param->GetMaxEnergy() > param->EnergyThresholdForHeavyHadrons() ) {
245 
246     // anti light ions
247     G4HadronicBuilder::BuildAntiLightIonsFTFP();
248 
249     // hyperons
250     G4HadronicBuilder::BuildHyperonsQGSP_FTFP_BERT(true);
251 
252     // b-, c- baryons and mesons
253     if( param->EnableBCParticles() ) {
254       G4HadronicBuilder::BuildBCHadronsQGSP_FTFP_BERT(true);
255     }
256   }
257 }
258 
259 G4HadronPhysicsQGSP_BERT::~G4HadronPhysicsQGSP_BERT()
260 {}
261 
262 void G4HadronPhysicsQGSP_BERT::ConstructParticle()
263 {
264   G4MesonConstructor pMesonConstructor;
265   pMesonConstructor.ConstructParticle();
266 
267   G4BaryonConstructor pBaryonConstructor;
268   pBaryonConstructor.ConstructParticle();
269 
270   G4ShortLivedConstructor pShortLivedConstructor;
271   pShortLivedConstructor.ConstructParticle();  
272 
273   G4IonConstructor pIonConstructor;
274   pIonConstructor.ConstructParticle();
275 }
276 
277 void G4HadronPhysicsQGSP_BERT::ConstructProcess()
278 {
279   // allow changing of parameters at PreInit
280   G4HadronicParameters* param = G4HadronicParameters::Instance();
281   minQGSP_proton = minQGSP_neutron = minQGSP_pik = 
282     param->GetMinEnergyTransitionQGS_FTF();
283   maxFTFP_proton = maxFTFP_neutron = maxFTFP_pik = 
284     param->GetMaxEnergyTransitionQGS_FTF();
285   minFTFP_proton = minFTFP_neutron = minFTFP_pik = 
286     param->GetMinEnergyTransitionFTF_Cascade();
287   maxBERT_pik = param->GetMaxEnergyTransitionFTF_Cascade();
288 
289   if(G4Threading::IsMasterThread() && param->GetVerboseLevel() > 0) {
290       DumpBanner();
291   }
292   CreateModels();
293 }
294 
295 void G4HadronPhysicsQGSP_BERT::DumpBanner()
296 {
297   G4cout << G4endl;
298   G4cout << " " << GetPhysicsName() << "  Thresholds: " << G4endl;
299   G4cout << "    1) between BERT  and FTF/P over the interval " 
300    << minFTFP_proton/GeV << " to " << maxBERT_proton/GeV << " GeV. " << G4endl;
301   G4cout << "    2) between FTF/P and QGS/P over the interval " 
302    << minQGSP_proton/GeV << " to " << maxFTFP_proton/GeV << " GeV. " << G4endl;
303   G4cout << "  -- quasiElastic: " << QuasiElasticQGS << " for QGS "
304    << " and " << QuasiElasticFTF << " for FTF" << G4endl;
305 }
306 
307 
308