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25 // 25 //
26 //-------------------------------------------- 26 //---------------------------------------------------------------------------
27 // 27 //
28 // ClassName: G4HadronicAbsorptionFritiof 28 // ClassName: G4HadronicAbsorptionFritiof
29 // 29 //
30 // Author: Alberto Ribon 30 // Author: Alberto Ribon
31 // 31 //
32 // Date: 27 July 2012 32 // Date: 27 July 2012
33 // 33 //
34 // Modified: 34 // Modified:
35 // 35 //
36 // Class Description: 36 // Class Description:
37 // 37 //
38 // Intermediate class for hadronic absorption 38 // Intermediate class for hadronic absorption at rest using FTF/Preco.
>> 39 // Physics lists should reference the concrete subclasses for:
>> 40 // anti_proton, anti_sigma+, and all anti-nuclei.
39 // 41 //
40 //-------------------------------------------- 42 //---------------------------------------------------------------------------
41 43
42 #include <iostream> 44 #include <iostream>
43 45
44 #include "G4SystemOfUnits.hh" 46 #include "G4SystemOfUnits.hh"
45 #include "G4HadronicAbsorptionFritiof.hh" 47 #include "G4HadronicAbsorptionFritiof.hh"
46 #include "G4PreCompoundModel.hh" 48 #include "G4PreCompoundModel.hh"
47 #include "G4GeneratorPrecompoundInterface.hh" 49 #include "G4GeneratorPrecompoundInterface.hh"
48 #include "G4FTFModel.hh" 50 #include "G4FTFModel.hh"
49 #include "G4LundStringFragmentation.hh" 51 #include "G4LundStringFragmentation.hh"
50 #include "G4ExcitedStringDecay.hh" 52 #include "G4ExcitedStringDecay.hh"
51 #include "G4TheoFSGenerator.hh" 53 #include "G4TheoFSGenerator.hh"
52 #include "G4ParticleDefinition.hh" 54 #include "G4ParticleDefinition.hh"
53 #include "G4ParticleTypes.hh" 55 #include "G4ParticleTypes.hh"
54 #include "G4HadronicInteractionRegistry.hh" 56 #include "G4HadronicInteractionRegistry.hh"
55 #include "G4HadronicParameters.hh" <<
56 57
57 // Constructor 58 // Constructor
58 G4HadronicAbsorptionFritiof:: 59 G4HadronicAbsorptionFritiof::
59 G4HadronicAbsorptionFritiof( G4ParticleDefinit 60 G4HadronicAbsorptionFritiof( G4ParticleDefinition* pdef )
60 : G4HadronStoppingProcess( "hFritiofCaptureA 61 : G4HadronStoppingProcess( "hFritiofCaptureAtRest" ),
61 pdefApplicable( pdef ) { 62 pdefApplicable( pdef ) {
62 63
63 G4TheoFSGenerator * theModel = new G4TheoFSG 64 G4TheoFSGenerator * theModel = new G4TheoFSGenerator( "FTFP" );
64 G4FTFModel * theStringModel = new G4FTFModel 65 G4FTFModel * theStringModel = new G4FTFModel;
65 theStringModel->SetFragmentationModel(new G4 << 66 theLund = new G4LundStringFragmentation;
>> 67 theStringDecay = new G4ExcitedStringDecay( theLund );
>> 68 theStringModel->SetFragmentationModel( theStringDecay );
66 69
67 // Not a cascade - goes straight to Preco 70 // Not a cascade - goes straight to Preco
68 G4HadronicInteraction* p = 71 G4HadronicInteraction* p =
69 G4HadronicInteractionRegistry::Instance()- 72 G4HadronicInteractionRegistry::Instance()->FindModel("PRECO");
70 G4VPreCompoundModel * thePreEquilib = static 73 G4VPreCompoundModel * thePreEquilib = static_cast<G4VPreCompoundModel*>(p);
71 if(! thePreEquilib) { thePreEquilib = new G4 74 if(! thePreEquilib) { thePreEquilib = new G4PreCompoundModel; }
72 75
73 G4GeneratorPrecompoundInterface * theCascade 76 G4GeneratorPrecompoundInterface * theCascade =
74 new G4GeneratorPrecompoundInterface( thePr 77 new G4GeneratorPrecompoundInterface( thePreEquilib );
75 78
76 theModel->SetHighEnergyGenerator( theStringM 79 theModel->SetHighEnergyGenerator( theStringModel );
77 theModel->SetTransport( theCascade ); 80 theModel->SetTransport( theCascade );
78 81
79 G4double theMin = 0.0*GeV; 82 G4double theMin = 0.0*GeV;
80 G4double theMax = G4HadronicParameters::Inst << 83 G4double theMax = 100.0*TeV;
81 theModel->SetMinEnergy( theMin ); 84 theModel->SetMinEnergy( theMin );
82 theModel->SetMaxEnergy( theMax ); 85 theModel->SetMaxEnergy( theMax );
83 86
84 RegisterMe( theModel ); 87 RegisterMe( theModel );
85 } 88 }
86 89
>> 90
87 G4HadronicAbsorptionFritiof::~G4HadronicAbsorp 91 G4HadronicAbsorptionFritiof::~G4HadronicAbsorptionFritiof() {
>> 92 delete theLund;
>> 93 delete theStringDecay;
88 } 94 }
89 95
>> 96
90 // Applies to constructor-specified particle, 97 // Applies to constructor-specified particle, or to all known cases
91 G4bool G4HadronicAbsorptionFritiof:: 98 G4bool G4HadronicAbsorptionFritiof::
92 IsApplicable( const G4ParticleDefinition& part 99 IsApplicable( const G4ParticleDefinition& particle ) {
93 return ( ( 0 == pdefApplicable && 100 return ( ( 0 == pdefApplicable &&
94 ( &particle == G4AntiProton::Defi << 101 ( &particle == G4AntiProton::Definition() ||
95 &particle == G4AntiNeutron::Def << 102 &particle == G4AntiSigmaPlus::Definition() ||
96 &particle == G4AntiLambda::Defi <<
97 &particle == G4AntiSigmaZero::Definit <<
98 &particle == G4AntiSigmaPlus::Definit <<
99 &particle == G4AntiXiZero::Defi <<
100 particle.GetBaryonNumber() < -1 103 particle.GetBaryonNumber() < -1 ) ) // Anti-nuclei
101 || ( &particle == pdefApplicable ) ); 104 || ( &particle == pdefApplicable ) );
102 } 105 }
103 106
104 107
105 // Documentation of purpose 108 // Documentation of purpose
106 void G4HadronicAbsorptionFritiof:: 109 void G4HadronicAbsorptionFritiof::
107 ProcessDescription( std::ostream& os ) const { 110 ProcessDescription( std::ostream& os ) const {
108 os << "Stopping and absorption of anti_proto << 111 os << "Stopping and absorption of anti_protons, anti_sigma+, and \n"
109 << "anti_sigma0, anti_sigma+, anti_xi0 an << 112 << "all anti-nuclei using Fritiof (FTF) string model.\n"
110 << "using Fritiof (FTF) string model.\n" <<
111 << "Geant4 PreCompound model is used for 113 << "Geant4 PreCompound model is used for nuclear de-excitation."
112 << std::endl; 114 << std::endl;
113 } 115 }
114 116