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25 //
26 // INCL++ intra-nuclear cascade model
27 // Alain Boudard, CEA-Saclay, France
28 // Joseph Cugnon, University of Liege, Belgium
29 // Jean-Christophe David, CEA-Saclay, France
30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
31 // Sylvie Leray, CEA-Saclay, France
32 // Davide Mancusi, CEA-Saclay, France
33 //
34 #define INCLXX_IN_GEANT4_MODE 1
35
36 #include "globals.hh"
37
38 #include "G4INCLNNToNLKpiChannel.hh"
39 #include "G4INCLKinematicsUtils.hh"
40 #include "G4INCLBinaryCollisionAvatar.hh"
41 #include "G4INCLRandom.hh"
42 #include "G4INCLGlobals.hh"
43 #include "G4INCLLogger.hh"
44 #include <algorithm>
45 #include "G4INCLPhaseSpaceGenerator.hh"
46
47 namespace G4INCL {
48
49 const G4double NNToNLKpiChannel::angularSlope = 2.; // What is the exact effect? Sould be check
50
51 NNToNLKpiChannel::NNToNLKpiChannel(Particle *p1, Particle *p2)
52 : particle1(p1), particle2(p2)
53 {}
54
55 NNToNLKpiChannel::~NNToNLKpiChannel(){}
56
57 void NNToNLKpiChannel::fillFinalState(FinalState *fs) {
58
59 // pp -> p pi+ L K0 (9)
60 // pp -> p pi0 L K+ (2)
61 // pp -> n pi+ L K+ (1)
62 // pn -> p pi- L K+ (2)
63 // pn -> n pi0 L K+ (4)
64
65 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(particle1, particle2);
66
67 const G4int iso = ParticleTable::getIsospin(particle1->getType()) + ParticleTable::getIsospin(particle2->getType());
68
69 ParticleType KaonType;
70 ParticleType PionType;
71
72 G4double rdm = Random::shoot();
73 particle2->setType(Lambda);
74
75 if(iso == 2){
76 if(rdm*4. < 3.){
77 KaonType = KZero;
78 PionType = PiPlus;
79 }
80 else if(rdm*12. < 11.){
81 KaonType = KPlus;
82 PionType = PiZero;
83 }
84 else{
85 KaonType = KPlus;
86 PionType = PiPlus;
87 particle1->setType(Neutron);
88 }
89 }
90 else if(iso == -2){
91 if(rdm*4. < 3.){
92 KaonType = KPlus;
93 PionType = PiMinus;
94 }
95 else if(rdm*12. < 11.){
96 KaonType = KZero;
97 PionType = PiZero;
98 }
99 else{
100 KaonType = KZero;
101 PionType = PiMinus;
102 particle1->setType(Proton);
103 }
104 }
105 else if(rdm*6. < 2.){
106 KaonType = KPlus;
107 PionType = PiZero;
108 particle1->setType(Neutron);
109 }
110 else if(rdm*6. < 4.){
111 KaonType = KZero;
112 PionType = PiZero;
113 particle1->setType(Proton);
114 }
115 else if(rdm*6. < 5.){
116 KaonType = KPlus;
117 PionType = PiMinus;
118 particle1->setType(Proton);
119 }
120 else{
121 KaonType = KZero;
122 PionType = PiPlus;
123 particle1->setType(Neutron);
124 }
125
126 ParticleList list;
127 list.push_back(particle1);
128 list.push_back(particle2);
129 const ThreeVector &rcol1 = particle1->getPosition();
130 const ThreeVector &rcol2 = particle2->getPosition();
131 const ThreeVector zero;
132 Particle *pion = new Particle(PionType,zero,rcol1);
133 Particle *kaon = new Particle(KaonType,zero,rcol2);
134 list.push_back(kaon);
135 list.push_back(pion);
136
137 if(Random::shoot()<0.5) PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope);
138 else PhaseSpaceGenerator::generateBiased(sqrtS, list, 1, angularSlope);
139
140 fs->addModifiedParticle(particle1);
141 fs->addModifiedParticle(particle2);
142 fs->addCreatedParticle(kaon);
143 fs->addCreatedParticle(pion);
144
145 }
146 }
147