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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
38 #include "G4INCLNDeltaToNLKChannel.hh"
39 #include "G4INCLKinematicsUtils.hh"
40 #include "G4INCLBinaryCollisionAvatar.hh"
41 #include "G4INCLRandom.hh"
42 #include "G4INCLGlobals.hh"
43 #include "G4INCLLogger.hh"
44 #include <algorithm>
45 #include "G4INCLPhaseSpaceGenerator.hh"
46
47 namespace G4INCL {
48
49 const G4double NDeltaToNLKChannel::angularSlope = 2.;
50
51 NDeltaToNLKChannel::NDeltaToNLKChannel(Particle *p1, Particle *p2)
52 : particle1(p1), particle2(p2)
53 {}
54
55 NDeltaToNLKChannel::~NDeltaToNLKChannel(){}
56
57 void NDeltaToNLKChannel::fillFinalState(FinalState *fs) {
58 // D++ n -> p L K+ (3)
59 //
60 // D+ p -> p L K+ (1)
61 //
62 // D+ n -> p L K0 (1)
63 // D+ n -> n L K+ (1)
64
65 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(particle1, particle2);
66
67 const G4int iso = ParticleTable::getIsospin(particle1->getType()) + ParticleTable::getIsospin(particle2->getType());
68
69 ParticleType KaonType;
70 ParticleType NucleonType;
71 particle2->setType(Lambda);
72
73 if(std::abs(iso) == 2){// D++ n and D+ p
74 KaonType = ParticleTable::getKaonType(iso/2);
75 NucleonType = ParticleTable::getNucleonType(iso/2);
76 }
77 else if(Random::shoot() < 0.5){// D+ n
78 KaonType = KPlus;
79 NucleonType = Neutron;
80 }
81 else{// D+ n
82 KaonType = KZero;
83 NucleonType = Proton;
84 }
85 particle1->setType(NucleonType);
86
87 ParticleList list;
88 list.push_back(particle1);
89 list.push_back(particle2);
90 const ThreeVector &rcol = particle2->getPosition();
91 const ThreeVector zero;
92 Particle *kaon = new Particle(KaonType,zero,rcol);
93 list.push_back(kaon);
94
95 if(Random::shoot()<0.5) PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope);
96 else PhaseSpaceGenerator::generateBiased(sqrtS, list, 1, angularSlope);
97
98 fs->addModifiedParticle(particle1);
99 fs->addModifiedParticle(particle2);
100 fs->addCreatedParticle(kaon);
101
102 }
103 }
104