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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 "G4INCLNKbToNKbpiChannel.hh" 38 #include "G4INCLNKbToNKbpiChannel.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 NKbToNKbpiChannel::angularSlo 49 const G4double NKbToNKbpiChannel::angularSlope = 4.; // What is the exact effect? Sould be check
50 50
51 NKbToNKbpiChannel::NKbToNKbpiChannel(Particl 51 NKbToNKbpiChannel::NKbToNKbpiChannel(Particle *p1, Particle *p2)
52 : particle1(p1), particle2(p2) 52 : particle1(p1), particle2(p2)
53 {} 53 {}
54 54
55 NKbToNKbpiChannel::~NKbToNKbpiChannel(){} 55 NKbToNKbpiChannel::~NKbToNKbpiChannel(){}
56 56
57 void NKbToNKbpiChannel::fillFinalState(Final 57 void NKbToNKbpiChannel::fillFinalState(FinalState *fs) {
58 58
59 // ratio 59 // ratio
60 // p K- (28) p K0b (20) 60 // p K- (28) p K0b (20)
61 // 61 //
62 // p K- -> p K- pi0 (6)* 62 // p K- -> p K- pi0 (6)*
63 // p K- -> p K0b pi- (7)* 63 // p K- -> p K0b pi- (7)*
64 // p K- -> n K- pi+ (9)* 64 // p K- -> n K- pi+ (9)*
65 // p K- -> n K0b pi0 (6) 65 // p K- -> n K0b pi0 (6)
66 // 66 //
67 // p K0b -> p K0b pi0 (4) 67 // p K0b -> p K0b pi0 (4)
68 // p K0b -> p K- pi+ (10)* 68 // p K0b -> p K- pi+ (10)*
69 // p K0b -> n K0b pi+ (6)* 69 // p K0b -> n K0b pi+ (6)*
70 // 70 //
71 71
72 Particle *nucleon; 72 Particle *nucleon;
73 Particle *kaon; 73 Particle *kaon;
74 74
75 if(particle1->isNucleon()){ 75 if(particle1->isNucleon()){
76 nucleon = particle1; 76 nucleon = particle1;
77 kaon = particle2; 77 kaon = particle2;
78 } 78 }
79 else{ 79 else{
80 nucleon = particle2; 80 nucleon = particle2;
81 kaon = particle1; 81 kaon = particle1;
82 } 82 }
83 83
84 const G4double sqrtS = KinematicsUtils::to 84 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, kaon);
85 85
86 const G4int iso = ParticleTable::getIsospi 86 const G4int iso = ParticleTable::getIsospin(nucleon->getType()) + ParticleTable::getIsospin(kaon->getType());
87 const G4int iso_n = ParticleTable::getIsos 87 const G4int iso_n = ParticleTable::getIsospin(nucleon->getType());
88 G4double rdm = Random::shoot(); 88 G4double rdm = Random::shoot();
89 89
90 ParticleType PionType; 90 ParticleType PionType;
91 91
92 if(iso == 2 || iso == -2){ 92 if(iso == 2 || iso == -2){
93 if(rdm*5. < 1.){ 93 if(rdm*5. < 1.){
94 PionType = PiZero; 94 PionType = PiZero;
95 } 95 }
96 else if(rdm*2. < 1.){ 96 else if(rdm*2. < 1.){
97 PionType = ParticleTable::getPionType( 97 PionType = ParticleTable::getPionType(iso);
98 nucleon->setType(ParticleTable::getNuc 98 nucleon->setType(ParticleTable::getNucleonType(-iso/2));
99 } 99 }
100 else{ 100 else{
101 PionType = ParticleTable::getPionType( 101 PionType = ParticleTable::getPionType(iso);
102 kaon->setType(ParticleTable::getAntiKa 102 kaon->setType(ParticleTable::getAntiKaonType(-iso/2));
103 } 103 }
104 } 104 }
105 else{ 105 else{
106 if(rdm*28. < 6.){ 106 if(rdm*28. < 6.){
107 PionType = PiZero; 107 PionType = PiZero;
108 } 108 }
109 else if(rdm*28. < 13.){ 109 else if(rdm*28. < 13.){
110 kaon->setType(ParticleTable::getAntiKa 110 kaon->setType(ParticleTable::getAntiKaonType(iso_n));
111 PionType = ParticleTable::getPionType( 111 PionType = ParticleTable::getPionType(-2*iso_n);
112 } 112 }
113 else if(rdm*28. < 22.){ 113 else if(rdm*28. < 22.){
114 nucleon->setType(ParticleTable::getNuc 114 nucleon->setType(ParticleTable::getNucleonType(-iso_n));
115 PionType = ParticleTable::getPionType( 115 PionType = ParticleTable::getPionType(2*iso_n);
116 } 116 }
117 else{ 117 else{
118 kaon->setType(ParticleTable::getAntiKa 118 kaon->setType(ParticleTable::getAntiKaonType(iso_n));
119 nucleon->setType(ParticleTable::getNuc 119 nucleon->setType(ParticleTable::getNucleonType(-iso_n));
120 PionType = PiZero; 120 PionType = PiZero;
121 } 121 }
122 } 122 }
123 123
124 ParticleList list; 124 ParticleList list;
125 list.push_back(nucleon); 125 list.push_back(nucleon);
126 list.push_back(kaon); 126 list.push_back(kaon);
127 const ThreeVector &rcol = nucleon->getPosi 127 const ThreeVector &rcol = nucleon->getPosition();
128 const ThreeVector zero; 128 const ThreeVector zero;
129 Particle *pion = new Particle(PionType,zer 129 Particle *pion = new Particle(PionType,zero,rcol);
130 list.push_back(pion); 130 list.push_back(pion);
131 131
132 PhaseSpaceGenerator::generateBiased(sqrtS, 132 PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope);
133 133
134 fs->addModifiedParticle(nucleon); 134 fs->addModifiedParticle(nucleon);
135 fs->addModifiedParticle(kaon); 135 fs->addModifiedParticle(kaon);
136 fs->addCreatedParticle(pion); 136 fs->addCreatedParticle(pion);
137 137
138 } 138 }
139 } 139 }
140 140