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G4INCLNDeltaToNSKChannel.cc
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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 
39 #include "G4INCLKinematicsUtils.hh"
41 #include "G4INCLRandom.hh"
42 #include "G4INCLGlobals.hh"
43 #include "G4INCLLogger.hh"
44 #include <algorithm>
46 
47 namespace G4INCL {
48 
50 
52  : particle1(p1), particle2(p2)
53  {}
54 
56 
58  // D++ p -> p S+ K+ (6)
59  //
60  // D++ n -> p S+ K0 (3)
61  // D++ n -> p S0 K+ (3)
62  // D++ n -> n S+ K+ (3)
63  //
64  // D+ p -> p S+ K0 (2)
65  // D+ p -> p S0 K+ (2)
66  // D+ p -> n S+ K+ (3)
67  //
68  // D+ n -> p S0 K0 (3)
69  // D+ n -> p S- K+ (2)
70  // D+ n -> n S+ K0 (2)
71  // D+ n -> n S0 K+ (2)
72 
73 
74  Particle *delta;
75 
76  if (particle1->isResonance()) {
77  delta = particle1;
78  }
79  else {
80  delta = particle2;
81  }
82 
84 
86  const G4int iso_d = ParticleTable::getIsospin(delta->getType());
87 
88  ParticleType KaonType;
89  ParticleType NucleonType;
90  ParticleType SigmaType;
91 
92  const G4double rdm = Random::shoot();
93 
94  if(std::abs(iso) == 4){// D++ p
95  KaonType = ParticleTable::getKaonType(iso/4);
96  NucleonType = ParticleTable::getNucleonType(iso/4);
97  SigmaType = ParticleTable::getSigmaType(iso/2);
98  }
99  else if(iso == 0){// D+ n
100  if(rdm*9 < 3){
101  KaonType = ParticleTable::getKaonType(-iso_d);
102  NucleonType = ParticleTable::getNucleonType(iso_d);
103  SigmaType = SigmaZero;
104  }
105  else if(rdm*9 < 5){
106  KaonType = ParticleTable::getKaonType(iso_d);
107  NucleonType = ParticleTable::getNucleonType(iso_d);
108  SigmaType = ParticleTable::getSigmaType(-2*iso_d);
109  }
110  else if(rdm*9 < 7){
111  KaonType = ParticleTable::getKaonType(-iso_d);
112  NucleonType = ParticleTable::getNucleonType(-iso_d);
113  SigmaType = ParticleTable::getSigmaType(2*iso_d);
114  }
115  else{
116  KaonType = ParticleTable::getKaonType(iso_d);
117  NucleonType = ParticleTable::getNucleonType(-iso_d);
118  SigmaType = SigmaZero;
119  }
120  }
122  if(rdm*7 < 2){
123  KaonType = ParticleTable::getKaonType(-iso/2);
124  NucleonType = ParticleTable::getNucleonType(iso/2);
125  SigmaType = ParticleTable::getSigmaType(iso);
126  }
127  else if(rdm*7 < 4){
128  KaonType = ParticleTable::getKaonType(iso/2);
129  NucleonType = ParticleTable::getNucleonType(iso/2);
130  SigmaType = SigmaZero;
131  }
132  else{
133  KaonType = ParticleTable::getKaonType(iso/2);
134  NucleonType = ParticleTable::getNucleonType(-iso/2);
135  SigmaType = ParticleTable::getSigmaType(iso);
136  }
137  }
138  else{// D++ n
139  if(rdm*3 < 1){
140  KaonType = ParticleTable::getKaonType(-iso/2);
141  NucleonType = ParticleTable::getNucleonType(iso/2);
142  SigmaType = ParticleTable::getSigmaType(iso);
143  }
144  else if(rdm*3 < 2){
145  KaonType = ParticleTable::getKaonType(iso/2);
146  NucleonType = ParticleTable::getNucleonType(iso/2);
147  SigmaType = SigmaZero;
148  }
149  else{
150  KaonType = ParticleTable::getKaonType(iso/2);
151  NucleonType = ParticleTable::getNucleonType(-iso/2);
152  SigmaType = ParticleTable::getSigmaType(iso);
153  }
154  }
155 
156  particle1->setType(NucleonType);
157  particle2->setType(SigmaType);
158 
159  ParticleList list;
160  list.push_back(particle1);
161  list.push_back(particle2);
162  const ThreeVector &rcol = particle2->getPosition();
163  const ThreeVector zero;
164  Particle *kaon = new Particle(KaonType,zero,rcol);
165  list.push_back(kaon);
166 
168 
171  fs->addCreatedParticle(kaon);
172 
173  }
174 }
void generateBiased(const G4double sqrtS, ParticleList &particles, const size_t index, const G4double slope)
Generate a biased event in the CM system.
void addModifiedParticle(Particle *p)
const G4INCL::ThreeVector & getPosition() const
ParticleType getNucleonType(const G4int isosp)
Get the type of nucleon.
G4double totalEnergyInCM(Particle const *const p1, Particle const *const p2)
NDeltaToNSKChannel(Particle *, Particle *)
G4bool isResonance() const
Is it a resonance?
double G4double
Definition: G4Types.hh:76
G4double shoot()
Definition: G4INCLRandom.cc:93
ParticleType getKaonType(const G4int isosp)
Get the type of kaon.
void setType(ParticleType t)
int G4int
Definition: G4Types.hh:78
G4int getIsospin(const ParticleType t)
Get the isospin of a particle.
G4INCL::ParticleType getType() const
ParticleType getSigmaType(const G4int isosp)
Get the type of sigma.
void addCreatedParticle(Particle *p)