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26 //
27 //---------------------------------------------------------------------
28 //
29 // Geant4 Class : G4ChipsElasticModel
30 //
31 // Author : V.Ivanchenko 29 June 2009
32 //
33 // Modified:
34 // 13.01.10: M.Kosov: Use G4Q(Pr/Neut)ElasticCS instead of G4QElasticCS
35 //
36 //---------------------------------------------------------------------
37 // CHIPS model of hadron elastic scattering
38 //
39
40 #include "G4ChipsElasticModel.hh"
41 #include "G4ParticleDefinition.hh"
42 #include <iostream>
43
44 #include "G4CrossSectionDataSetRegistry.hh"
45
46 G4ChipsElasticModel::G4ChipsElasticModel() : G4HadronElastic("hElasticCHIPS")
47 {
48 pxsManager = (G4ChipsProtonElasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4ChipsProtonElasticXS::Default_Name());
49 nxsManager = (G4ChipsNeutronElasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4ChipsNeutronElasticXS::Default_Name());
50 PBARxsManager = (G4ChipsAntiBaryonElasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4ChipsAntiBaryonElasticXS::Default_Name());
51 PIPxsManager = (G4ChipsPionPlusElasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4ChipsPionPlusElasticXS::Default_Name());
52 PIMxsManager = (G4ChipsPionMinusElasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4ChipsPionMinusElasticXS::Default_Name());
53 KPxsManager = (G4ChipsKaonPlusElasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4ChipsKaonPlusElasticXS::Default_Name());
54 KMxsManager = (G4ChipsKaonMinusElasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4ChipsKaonMinusElasticXS::Default_Name());
55 //Description();
56 }
57
58 G4ChipsElasticModel::~G4ChipsElasticModel()
59 {}
60
61 void G4ChipsElasticModel::ModelDescription(std::ostream& outFile) const
62 {
63
64 outFile << "The G4ChipsElasticModel model performs hadron-nucleus elastic\n"
65 << "scattering using the parameterized elastic cross sections\n"
66 << "of M. Kossov\n";
67
68 }
69
70
71 G4double
72 G4ChipsElasticModel::SampleInvariantT(const G4ParticleDefinition* p,
73 G4double plab, G4int Z, G4int A)
74 {
75 G4int N = A - Z;
76 if(Z == 1 && N == 2) { N = 1; }
77 else if(Z == 2 && N == 1) { N = 2; }
78 G4int projPDG = p->GetPDGEncoding();
79 G4double cs = 0.;
80 if (projPDG==2212) { cs = pxsManager->GetChipsCrossSection(plab,Z,N,projPDG); }
81 else if(projPDG==2112) { cs = nxsManager->GetChipsCrossSection(plab,Z,N,projPDG); }
82 else if(projPDG==-2212){ cs = PBARxsManager->GetChipsCrossSection(plab,Z,N,projPDG); } //Pbar
83 else if(projPDG== 211) { cs = PIPxsManager->GetChipsCrossSection(plab,Z,N,projPDG); } // Pi+
84 else if(projPDG==-211) { cs = PIMxsManager->GetChipsCrossSection(plab,Z,N,projPDG); } // Pi-
85 else if(projPDG== 321) { cs = KPxsManager->GetChipsCrossSection(plab,Z,N,projPDG); } // K+
86 else if(projPDG==-321) { cs = KMxsManager->GetChipsCrossSection(plab,Z,N,projPDG); } // K-
87
88 G4double t = 0.0;
89 if(cs > 0.0)
90 {
91 if (projPDG== 2212) { t = pxsManager->GetExchangeT(Z,N,projPDG); }
92 else if(projPDG== 2112) { t = nxsManager->GetExchangeT(Z,N,projPDG); }
93 else if(projPDG==-2212) { t = PBARxsManager->GetExchangeT(Z,N,projPDG); } // Pbar
94 else if(projPDG== 211) { t = PIPxsManager->GetExchangeT(Z,N,projPDG); } // Pi+
95 else if(projPDG== -211) { t = PIMxsManager->GetExchangeT(Z,N,projPDG); } // Pi-
96 else if(projPDG== 321) { t = KPxsManager->GetExchangeT(Z,N,projPDG); } // K+
97 else if(projPDG== -321) { t = KMxsManager->GetExchangeT(Z,N,projPDG); } // K-
98 }
99 else { t = G4HadronElastic::SampleInvariantT(p, plab, Z, A); }
100 return t;
101 }
102
103