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25 // 25 //
26 // INCL++ intra-nuclear cascade model 26 // INCL++ intra-nuclear cascade model
27 // Alain Boudard, CEA-Saclay, France 27 // Alain Boudard, CEA-Saclay, France
28 // Joseph Cugnon, University of Liege, Belgium 28 // Joseph Cugnon, University of Liege, Belgium
29 // Jean-Christophe David, CEA-Saclay, France 29 // Jean-Christophe David, CEA-Saclay, France
30 // Pekka Kaitaniemi, CEA-Saclay, France, and H 30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
31 // Sylvie Leray, CEA-Saclay, France 31 // Sylvie Leray, CEA-Saclay, France
32 // Davide Mancusi, CEA-Saclay, France 32 // Davide Mancusi, CEA-Saclay, France
33 // 33 //
34 #define INCLXX_IN_GEANT4_MODE 1 34 #define INCLXX_IN_GEANT4_MODE 1
35 35
36 #include "globals.hh" 36 #include "globals.hh"
37 37
38 #include "G4INCLNpiToNKKbChannel.hh" 38 #include "G4INCLNpiToNKKbChannel.hh"
39 #include "G4INCLKinematicsUtils.hh" 39 #include "G4INCLKinematicsUtils.hh"
40 #include "G4INCLBinaryCollisionAvatar.hh" 40 #include "G4INCLBinaryCollisionAvatar.hh"
41 #include "G4INCLRandom.hh" 41 #include "G4INCLRandom.hh"
42 #include "G4INCLGlobals.hh" 42 #include "G4INCLGlobals.hh"
43 #include "G4INCLLogger.hh" 43 #include "G4INCLLogger.hh"
44 #include <algorithm> 44 #include <algorithm>
45 #include "G4INCLPhaseSpaceGenerator.hh" 45 #include "G4INCLPhaseSpaceGenerator.hh"
46 46
47 namespace G4INCL { 47 namespace G4INCL {
48 48
49 const G4double NpiToNKKbChannel::angularSlop 49 const G4double NpiToNKKbChannel::angularSlope = 6.; // What is the exact effect? Sould be check
50 50
51 NpiToNKKbChannel::NpiToNKKbChannel(Particle 51 NpiToNKKbChannel::NpiToNKKbChannel(Particle *p1, Particle *p2)
52 : particle1(p1), particle2(p2) 52 : particle1(p1), particle2(p2)
53 {} 53 {}
54 54
55 NpiToNKKbChannel::~NpiToNKKbChannel(){} 55 NpiToNKKbChannel::~NpiToNKKbChannel(){}
56 56
57 void NpiToNKKbChannel::fillFinalState(FinalS 57 void NpiToNKKbChannel::fillFinalState(FinalState *fs) {
58 58
59 // p pi+ -> p K+ K0b (1/2) 59 // p pi+ -> p K+ K0b (1/2)
60 60
61 // p pi0 -> p K0 K0b (1/4) 61 // p pi0 -> p K0 K0b (1/4)
62 // p pi0 -> p K+ K- (1/4) 62 // p pi0 -> p K+ K- (1/4)
63 // p pi0 -> n K+ K0b (1) 63 // p pi0 -> n K+ K0b (1)
64 64
65 // p pi- -> p K0 K- (1/2) 65 // p pi- -> p K0 K- (1/2)
66 // p pi- -> n K+ K- (1) 66 // p pi- -> n K+ K- (1)
67 // p pi- -> n K0 K0b (1) 67 // p pi- -> n K0 K0b (1)
68 68
69 Particle *nucleon; 69 Particle *nucleon;
70 Particle *pion; 70 Particle *pion;
71 71
72 72
73 if(particle1->isNucleon()){ 73 if(particle1->isNucleon()){
74 nucleon = particle1; 74 nucleon = particle1;
75 pion = particle2; 75 pion = particle2;
76 } 76 }
77 else{ 77 else{
78 nucleon = particle2; 78 nucleon = particle2;
79 pion = particle1; 79 pion = particle1;
80 } 80 }
81 81
82 const G4double sqrtS = KinematicsUtils::to 82 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, pion);
83 83
84 const G4int iso = ParticleTable::getIsospi 84 const G4int iso = ParticleTable::getIsospin(nucleon->getType()) + ParticleTable::getIsospin(pion->getType());
85 G4double rdm = Random::shoot(); 85 G4double rdm = Random::shoot();
86 86
87 ParticleType KaonType; 87 ParticleType KaonType;
88 88
89 if(iso == 3 || iso == -3){ 89 if(iso == 3 || iso == -3){
90 KaonType = ParticleTable::getKaonType(is 90 KaonType = ParticleTable::getKaonType(iso/3);
91 pion->setType(ParticleTable::getAntiKaon 91 pion->setType(ParticleTable::getAntiKaonType(iso/3));
92 } 92 }
93 else if(pion->getType() == PiZero){ 93 else if(pion->getType() == PiZero){
94 if(rdm*6. < 1.){ 94 if(rdm*6. < 1.){
95 KaonType = ParticleTable::getKaonType( 95 KaonType = ParticleTable::getKaonType(-iso);
96 pion->setType(ParticleTable::getAntiKa 96 pion->setType(ParticleTable::getAntiKaonType(iso));
97 } 97 }
98 else if(rdm*6. < 2.){ 98 else if(rdm*6. < 2.){
99 KaonType = ParticleTable::getKaonType( 99 KaonType = ParticleTable::getKaonType(iso);
100 pion->setType(ParticleTable::getAntiKa 100 pion->setType(ParticleTable::getAntiKaonType(-iso));
101 } 101 }
102 else{ 102 else{
103 KaonType = ParticleTable::getKaonType( 103 KaonType = ParticleTable::getKaonType(iso);
104 pion->setType(ParticleTable::getAntiKa 104 pion->setType(ParticleTable::getAntiKaonType(iso));
105 nucleon->setType(ParticleTable::getNuc 105 nucleon->setType(ParticleTable::getNucleonType(-iso));
106 } 106 }
107 } 107 }
108 else{ 108 else{
109 if(rdm*5. < 1.){ 109 if(rdm*5. < 1.){
110 KaonType = ParticleTable::getKaonType( 110 KaonType = ParticleTable::getKaonType(iso);
111 pion->setType(ParticleTable::getAntiKa 111 pion->setType(ParticleTable::getAntiKaonType(iso));
112 } 112 }
113 else if(rdm*5. < 3.){ 113 else if(rdm*5. < 3.){
114 KaonType = ParticleTable::getKaonType( 114 KaonType = ParticleTable::getKaonType(-iso);
115 pion->setType(ParticleTable::getAntiKa 115 pion->setType(ParticleTable::getAntiKaonType(iso));
116 nucleon->setType(ParticleTable::getNuc 116 nucleon->setType(ParticleTable::getNucleonType(iso));
117 } 117 }
118 else{ 118 else{
119 KaonType = ParticleTable::getKaonType( 119 KaonType = ParticleTable::getKaonType(iso);
120 pion->setType(ParticleTable::getAntiKa 120 pion->setType(ParticleTable::getAntiKaonType(-iso));
121 nucleon->setType(ParticleTable::getNuc 121 nucleon->setType(ParticleTable::getNucleonType(iso));
122 } 122 }
123 } 123 }
124 124
125 #ifdef INCLXX_IN_GEANT4_MODE <<
126 // Erase the parent resonance information <<
127 nucleon->setParentResonancePDGCode(0); <<
128 nucleon->setParentResonanceID(0); <<
129 pion->setParentResonancePDGCode(0); <<
130 pion->setParentResonanceID(0); <<
131 #endif <<
132 <<
133 ParticleList list; 125 ParticleList list;
134 list.push_back(nucleon); 126 list.push_back(nucleon);
135 list.push_back(pion); 127 list.push_back(pion);
136 const ThreeVector &rcol = pion->getPositio 128 const ThreeVector &rcol = pion->getPosition();
137 const ThreeVector zero; 129 const ThreeVector zero;
138 Particle *kaon = new Particle(KaonType,zer 130 Particle *kaon = new Particle(KaonType,zero,rcol);
139 list.push_back(kaon); 131 list.push_back(kaon);
140 132
141 PhaseSpaceGenerator::generateBiased(sqrtS, 133 PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope);
142 134
143 INCL_DEBUG("NpiToNKKb " << (kaon->getMomen 135 INCL_DEBUG("NpiToNKKb " << (kaon->getMomentum().theta()) * 180. / G4INCL::Math::pi << '\n');
144 136
145 fs->addModifiedParticle(nucleon); 137 fs->addModifiedParticle(nucleon);
146 fs->addModifiedParticle(pion); 138 fs->addModifiedParticle(pion);
147 fs->addCreatedParticle(kaon); 139 fs->addCreatedParticle(kaon);
148 140
149 } 141 }
150 } 142 }
151 143