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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 "G4INCLNKbToS2piChannel.hh" 38 #include "G4INCLNKbToS2piChannel.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 NKbToS2piChannel::angularSlop 49 const G4double NKbToS2piChannel::angularSlope = 4.; // What is the exact effect? Sould be check
50 50
51 NKbToS2piChannel::NKbToS2piChannel(Particle 51 NKbToS2piChannel::NKbToS2piChannel(Particle *p1, Particle *p2)
52 : particle1(p1), particle2(p2) 52 : particle1(p1), particle2(p2)
53 {} 53 {}
54 54
55 NKbToS2piChannel::~NKbToS2piChannel(){} 55 NKbToS2piChannel::~NKbToS2piChannel(){}
56 56
57 void NKbToS2piChannel::fillFinalState(FinalS 57 void NKbToS2piChannel::fillFinalState(FinalState *fs) {
58 58
59 // p K0b -> S+ pi+ pi- (2/3) 59 // p K0b -> S+ pi+ pi- (2/3)
60 // p K0b -> S+ pi0 pi0 (1/4) 60 // p K0b -> S+ pi0 pi0 (1/4)
61 // p K0b -> S0 pi+ pi0 (5/6) 61 // p K0b -> S0 pi+ pi0 (5/6)
62 // p K0b -> S- pi+ pi+ (2/3) 62 // p K0b -> S- pi+ pi+ (2/3)
63 // 63 //
64 // p K- -> S+ pi0 pi- (1) 64 // p K- -> S+ pi0 pi- (1)
65 // p K- -> S0 pi+ pi- (2/3) 65 // p K- -> S0 pi+ pi- (2/3)
66 // p K- -> S0 pi0 pi0 (1/8) 66 // p K- -> S0 pi0 pi0 (1/8)
67 // p K- -> S- pi+ pi0 (2/3) 67 // p K- -> S- pi+ pi0 (2/3)
68 68
69 Particle *nucleon; 69 Particle *nucleon;
70 Particle *kaon; 70 Particle *kaon;
71 71
72 if(particle1->isNucleon()){ 72 if(particle1->isNucleon()){
73 nucleon = particle1; 73 nucleon = particle1;
74 kaon = particle2; 74 kaon = particle2;
75 } 75 }
76 else{ 76 else{
77 nucleon = particle2; 77 nucleon = particle2;
78 kaon = particle1; 78 kaon = particle1;
79 } 79 }
80 80
81 const G4double sqrtS = KinematicsUtils::to 81 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, kaon);
82 82
83 const G4int iso = ParticleTable::getIsospi 83 const G4int iso = ParticleTable::getIsospin(nucleon->getType()) + ParticleTable::getIsospin(kaon->getType());
84 const G4int iso_n = ParticleTable::getIsos 84 const G4int iso_n = ParticleTable::getIsospin(nucleon->getType());
85 G4double rdm = Random::shoot(); 85 G4double rdm = Random::shoot();
86 86
87 ParticleType PionType; 87 ParticleType PionType;
88 88
89 if(iso == 2 || iso == -2){ 89 if(iso == 2 || iso == -2){
90 if(rdm*29. < 8.){ 90 if(rdm*29. < 8.){
91 PionType = ParticleTable::getPionType( 91 PionType = ParticleTable::getPionType(-iso);
92 kaon->setType(ParticleTable::getPionTy 92 kaon->setType(ParticleTable::getPionType(iso));
93 nucleon->setType(ParticleTable::getSig 93 nucleon->setType(ParticleTable::getSigmaType(iso));
94 } 94 }
95 else if(rdm*29. < 11.){ 95 else if(rdm*29. < 11.){
96 PionType = PiZero; 96 PionType = PiZero;
97 kaon->setType(PiZero); 97 kaon->setType(PiZero);
98 nucleon->setType(ParticleTable::getSig 98 nucleon->setType(ParticleTable::getSigmaType(iso));
99 } 99 }
100 else if(rdm*29. < 21.){ 100 else if(rdm*29. < 21.){
101 PionType = PiZero; 101 PionType = PiZero;
102 kaon->setType(ParticleTable::getPionTy 102 kaon->setType(ParticleTable::getPionType(iso));
103 nucleon->setType(SigmaZero); 103 nucleon->setType(SigmaZero);
104 } 104 }
105 else{ 105 else{
106 PionType = ParticleTable::getPionType( 106 PionType = ParticleTable::getPionType(iso);
107 kaon->setType(ParticleTable::getPionTy 107 kaon->setType(ParticleTable::getPionType(iso));
108 nucleon->setType(ParticleTable::getSig 108 nucleon->setType(ParticleTable::getSigmaType(-iso));
109 } 109 }
110 } 110 }
111 else{ 111 else{
112 if(rdm*59. < 24.){ 112 if(rdm*59. < 24.){
113 PionType = PiZero; 113 PionType = PiZero;
114 kaon->setType(ParticleTable::getPionTy 114 kaon->setType(ParticleTable::getPionType(-2*iso_n));
115 nucleon->setType(ParticleTable::getSig 115 nucleon->setType(ParticleTable::getSigmaType(2*iso_n));
116 } 116 }
117 else if(rdm*59. < 40.){ 117 else if(rdm*59. < 40.){
118 PionType = ParticleTable::getPionType( 118 PionType = ParticleTable::getPionType(2*iso_n);
119 kaon->setType(ParticleTable::getPionTy 119 kaon->setType(ParticleTable::getPionType(-2*iso_n));
120 nucleon->setType(SigmaZero); 120 nucleon->setType(SigmaZero);
121 } 121 }
122 else if(rdm*59. < 43.){ 122 else if(rdm*59. < 43.){
123 PionType = PiZero; 123 PionType = PiZero;
124 kaon->setType(PiZero); 124 kaon->setType(PiZero);
125 nucleon->setType(SigmaZero); 125 nucleon->setType(SigmaZero);
126 } 126 }
127 else{ 127 else{
128 PionType = ParticleTable::getPionType( 128 PionType = ParticleTable::getPionType(2*iso_n);
129 kaon->setType(PiZero); 129 kaon->setType(PiZero);
130 nucleon->setType(ParticleTable::getSig 130 nucleon->setType(ParticleTable::getSigmaType(-2*iso_n));
131 } 131 }
132 } 132 }
133 133
134 ParticleList list; 134 ParticleList list;
135 list.push_back(nucleon); 135 list.push_back(nucleon);
136 list.push_back(kaon); 136 list.push_back(kaon);
137 const ThreeVector &rcol = nucleon->getPosi 137 const ThreeVector &rcol = nucleon->getPosition();
138 const ThreeVector zero; 138 const ThreeVector zero;
139 Particle *pion = new Particle(PionType,zer 139 Particle *pion = new Particle(PionType,zero,rcol);
140 list.push_back(pion); 140 list.push_back(pion);
141 141
142 PhaseSpaceGenerator::generateBiased(sqrtS, 142 PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope);
143 143
144 fs->addModifiedParticle(nucleon); 144 fs->addModifiedParticle(nucleon);
145 fs->addModifiedParticle(kaon); 145 fs->addModifiedParticle(kaon);
146 fs->addCreatedParticle(pion); 146 fs->addCreatedParticle(pion);
147 147
148 } 148 }
149 } 149 }
150 150