| Geant4 Cross Reference |
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25 // 22 //
26 // 23 //
27 24
28 #include "globals.hh" 25 #include "globals.hh"
29 #include "G4ios.hh" 26 #include "G4ios.hh"
30 #include "G4XMesonBaryonElastic.hh" 27 #include "G4XMesonBaryonElastic.hh"
31 #include "G4KineticTrack.hh" 28 #include "G4KineticTrack.hh"
32 #include "G4Gamma.hh" 29 #include "G4Gamma.hh"
33 #include "G4PionPlus.hh" 30 #include "G4PionPlus.hh"
34 #include "G4Proton.hh" 31 #include "G4Proton.hh"
35 #include "G4XAqmElastic.hh" 32 #include "G4XAqmElastic.hh"
36 #include "G4XPDGElastic.hh" 33 #include "G4XPDGElastic.hh"
37 34
38 G4XMesonBaryonElastic::G4XMesonBaryonElastic() 35 G4XMesonBaryonElastic::G4XMesonBaryonElastic()
39 { 36 {
40 // As a first approximation the model is ass 37 // As a first approximation the model is assumed to be valid over
41 // the entire energy range 38 // the entire energy range
42 lowLimit = 0.; 39 lowLimit = 0.;
43 highLimit = DBL_MAX; 40 highLimit = DBL_MAX;
44 } 41 }
45 42
46 43
47 G4XMesonBaryonElastic::~G4XMesonBaryonElastic( 44 G4XMesonBaryonElastic::~G4XMesonBaryonElastic()
48 { } 45 { }
49 46
50 47
51 G4bool G4XMesonBaryonElastic::operator==(const 48 G4bool G4XMesonBaryonElastic::operator==(const G4XMesonBaryonElastic &right) const
52 { 49 {
53 return (this == (G4XMesonBaryonElastic *) &r 50 return (this == (G4XMesonBaryonElastic *) &right);
54 } 51 }
55 52
56 53
57 G4bool G4XMesonBaryonElastic::operator!=(const 54 G4bool G4XMesonBaryonElastic::operator!=(const G4XMesonBaryonElastic &right) const
58 { 55 {
59 return (this != (G4XMesonBaryonElastic *) &r 56 return (this != (G4XMesonBaryonElastic *) &right);
60 } 57 }
61 58
62 59
63 G4double G4XMesonBaryonElastic::CrossSection(c 60 G4double G4XMesonBaryonElastic::CrossSection(const G4KineticTrack& trk1, const G4KineticTrack& trk2) const
64 { 61 {
65 G4double sigma; 62 G4double sigma;
66 63
67 // No gamma-baryon elastic scattering 64 // No gamma-baryon elastic scattering
68 const G4ParticleDefinition* defLight = FindL 65 const G4ParticleDefinition* defLight = FindLightParticle(trk1,trk2);
69 if (defLight == G4Gamma::GammaDefinition()) 66 if (defLight == G4Gamma::GammaDefinition())
70 { 67 {
71 sigma = 0; 68 sigma = 0;
72 } 69 }
73 else 70 else
74 { 71 {
75 72
76 G4LorentzVector p41 = trk1.Get4Momentum( 73 G4LorentzVector p41 = trk1.Get4Momentum();
77 G4ThreeVector p3 = trk1.GetPosition(); 74 G4ThreeVector p3 = trk1.GetPosition();
78 G4ParticleDefinition* def = G4PionPlus:: 75 G4ParticleDefinition* def = G4PionPlus::PionPlusDefinition();
79 76
80 G4KineticTrack piTrk(def, 77 G4KineticTrack piTrk(def,
81 trk1.GetFormationTime(), 78 trk1.GetFormationTime(),
82 p3, 79 p3,
83 (G4LorentzVector&)p41); 80 (G4LorentzVector&)p41);
84 81
85 G4LorentzVector p42 = trk2.Get4Momentum( 82 G4LorentzVector p42 = trk2.Get4Momentum();
86 G4KineticTrack pTrk(((G4ParticleDefiniti 83 G4KineticTrack pTrk(((G4ParticleDefinition*)G4Proton::ProtonDefinition()),
87 trk2.GetFormationTime(), 84 trk2.GetFormationTime(),
88 (G4ThreeVector)trk2.GetPosition(), 85 (G4ThreeVector)trk2.GetPosition(),
89 (G4LorentzVector&)p42); 86 (G4LorentzVector&)p42);
90 87
91 G4XAqmElastic aqm; 88 G4XAqmElastic aqm;
92 G4double xAqmDummy = aqm.CrossSection(pi 89 G4double xAqmDummy = aqm.CrossSection(piTrk,pTrk);
93 G4double xAqm = aqm.CrossSection(trk1,tr 90 G4double xAqm = aqm.CrossSection(trk1,trk2);
94 G4double factor = 1.; 91 G4double factor = 1.;
95 if (xAqmDummy != 0.0) 92 if (xAqmDummy != 0.0)
96 { 93 {
97 factor = xAqm / xAqmDummy; 94 factor = xAqm / xAqmDummy;
98 } 95 }
99 G4XPDGElastic pdg; 96 G4XPDGElastic pdg;
100 97
101 sigma = pdg.CrossSection(piTrk,pTrk); 98 sigma = pdg.CrossSection(piTrk,pTrk);
102 sigma = sigma * factor; 99 sigma = sigma * factor;
103 } 100 }
104 101
105 return sigma; 102 return sigma;
106 } 103 }
107 104
108 105
109 G4String G4XMesonBaryonElastic::Name() const 106 G4String G4XMesonBaryonElastic::Name() const
110 { 107 {
111 G4String name("MesonBaryonElasticCrossSectio 108 G4String name("MesonBaryonElasticCrossSection");
112 return name; 109 return name;
113 } 110 }
114 111
115 112
116 113
117 G4bool G4XMesonBaryonElastic::IsValid(G4double 114 G4bool G4XMesonBaryonElastic::IsValid(G4double e) const
118 { 115 {
119 G4bool answer = InLimits(e,lowLimit,highLimi 116 G4bool answer = InLimits(e,lowLimit,highLimit);
120 117
121 return answer; 118 return answer;
122 } 119 }
123 120