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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 "G4INCLNKbToL2piChannel.hh" 38 #include "G4INCLNKbToL2piChannel.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 NKbToL2piChannel::angularSlop 49 const G4double NKbToL2piChannel::angularSlope = 4.; // What is the exact effect? Sould be check
50 50
51 NKbToL2piChannel::NKbToL2piChannel(Particle 51 NKbToL2piChannel::NKbToL2piChannel(Particle *p1, Particle *p2)
52 : particle1(p1), particle2(p2) 52 : particle1(p1), particle2(p2)
53 {} 53 {}
54 54
55 NKbToL2piChannel::~NKbToL2piChannel(){} 55 NKbToL2piChannel::~NKbToL2piChannel(){}
56 56
57 void NKbToL2piChannel::fillFinalState(FinalS 57 void NKbToL2piChannel::fillFinalState(FinalState *fs) {
58 58
59 // p K0b -> L pi+ pi0 (1) 59 // p K0b -> L pi+ pi0 (1)
60 // 60 //
61 // p K- -> L pi+ pi- (1) 61 // p K- -> L pi+ pi- (1)
62 // p K- -> L pi0 pi0 (1/4) 62 // p K- -> L pi0 pi0 (1/4)
63 63
64 Particle *nucleon; 64 Particle *nucleon;
65 Particle *kaon; 65 Particle *kaon;
66 66
67 if(particle1->isNucleon()){ 67 if(particle1->isNucleon()){
68 nucleon = particle1; 68 nucleon = particle1;
69 kaon = particle2; 69 kaon = particle2;
70 } 70 }
71 else{ 71 else{
72 nucleon = particle2; 72 nucleon = particle2;
73 kaon = particle1; 73 kaon = particle1;
74 } 74 }
75 75
76 const G4double sqrtS = KinematicsUtils::to 76 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, kaon);
77 77
78 const G4int iso = ParticleTable::getIsospi 78 const G4int iso = ParticleTable::getIsospin(nucleon->getType()) + ParticleTable::getIsospin(kaon->getType());
79 const G4int iso_n = ParticleTable::getIsos 79 const G4int iso_n = ParticleTable::getIsospin(nucleon->getType());
80 G4double rdm = Random::shoot(); 80 G4double rdm = Random::shoot();
81 81
82 ParticleType PionType; 82 ParticleType PionType;
83 83
84 if(iso == 2 || iso == -2){ 84 if(iso == 2 || iso == -2){
85 PionType = ParticleTable::getPionType(is 85 PionType = ParticleTable::getPionType(iso);
86 kaon->setType(PiZero); 86 kaon->setType(PiZero);
87 } 87 }
88 else{ 88 else{
89 if(rdm*5. < 4.){ 89 if(rdm*5. < 4.){
90 PionType = ParticleTable::getPionType( 90 PionType = ParticleTable::getPionType(2*iso_n);
91 kaon->setType(ParticleTable::getPionTy 91 kaon->setType(ParticleTable::getPionType(-2*iso_n));
92 } 92 }
93 else{ 93 else{
94 PionType = PiZero; 94 PionType = PiZero;
95 kaon->setType(PiZero); 95 kaon->setType(PiZero);
96 } 96 }
97 } 97 }
98 98
99 nucleon->setType(Lambda); 99 nucleon->setType(Lambda);
100 100
101 ParticleList list; 101 ParticleList list;
102 list.push_back(nucleon); 102 list.push_back(nucleon);
103 list.push_back(kaon); 103 list.push_back(kaon);
104 const ThreeVector &rcol = nucleon->getPosi 104 const ThreeVector &rcol = nucleon->getPosition();
105 const ThreeVector zero; 105 const ThreeVector zero;
106 Particle *pion = new Particle(PionType,zer 106 Particle *pion = new Particle(PionType,zero,rcol);
107 list.push_back(pion); 107 list.push_back(pion);
108 108
109 PhaseSpaceGenerator::generateBiased(sqrtS, 109 PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope);
110 110
111 fs->addModifiedParticle(nucleon); 111 fs->addModifiedParticle(nucleon);
112 fs->addModifiedParticle(kaon); 112 fs->addModifiedParticle(kaon);
113 fs->addCreatedParticle(pion); 113 fs->addCreatedParticle(pion);
114 114
115 } 115 }
116 } 116 }
117 117