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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 "G4INCLNLToNSChannel.hh" 38 #include "G4INCLNLToNSChannel.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 NLToNSChannel::NLToNSChannel(Particle *p1, P 49 NLToNSChannel::NLToNSChannel(Particle *p1, Particle *p2)
50 : particle1(p1), particle2(p2) 50 : particle1(p1), particle2(p2)
51 {} 51 {}
52 52
53 NLToNSChannel::~NLToNSChannel(){} 53 NLToNSChannel::~NLToNSChannel(){}
54 54
55 void NLToNSChannel::fillFinalState(FinalStat 55 void NLToNSChannel::fillFinalState(FinalState *fs) {
56 56
57 Particle *nucleon; 57 Particle *nucleon;
58 Particle *lambda; 58 Particle *lambda;
59 59
60 if(particle1->isNucleon()){ 60 if(particle1->isNucleon()){
61 nucleon = particle1; 61 nucleon = particle1;
62 lambda = particle2; 62 lambda = particle2;
63 } 63 }
64 else{ 64 else{
65 nucleon = particle2; 65 nucleon = particle2;
66 lambda = particle1; 66 lambda = particle1;
67 } 67 }
68 68
69 const G4double sqrtS = KinematicsUtils::to 69 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, lambda);
70 const G4int iso = ParticleTable::getIsospi 70 const G4int iso = ParticleTable::getIsospin(nucleon->getType());
71 const G4double rdm = Random::shoot(); 71 const G4double rdm = Random::shoot();
72 72
73 if(rdm*3. < 2){ 73 if(rdm*3. < 2){
74 nucleon->setType(ParticleTable::getNucle 74 nucleon->setType(ParticleTable::getNucleonType(-iso));
75 lambda->setType(ParticleTable::getSigmaT 75 lambda->setType(ParticleTable::getSigmaType(2*iso));
76 } 76 }
77 else{ 77 else{
78 lambda->setType(SigmaZero); 78 lambda->setType(SigmaZero);
79 } 79 }
80 80
81 G4double mn=nucleon->getMass(); 81 G4double mn=nucleon->getMass();
82 G4double my=lambda->getMass(); 82 G4double my=lambda->getMass();
83 83
84 G4double ey=(sqrtS*sqrtS+my*my-mn*mn)/(2*s 84 G4double ey=(sqrtS*sqrtS+my*my-mn*mn)/(2*sqrtS);
85 G4double en=std::sqrt(ey*ey-my*my+mn*mn); 85 G4double en=std::sqrt(ey*ey-my*my+mn*mn);
86 nucleon->setEnergy(en); 86 nucleon->setEnergy(en);
87 lambda->setEnergy(ey); 87 lambda->setEnergy(ey);
88 G4double py=std::sqrt(ey*ey-my*my); 88 G4double py=std::sqrt(ey*ey-my*my);
89 89
90 ThreeVector mom_hyperon = Random::normVect 90 ThreeVector mom_hyperon = Random::normVector(py);
91 91
92 lambda->setMomentum(mom_hyperon); 92 lambda->setMomentum(mom_hyperon);
93 nucleon->setMomentum(-mom_hyperon); 93 nucleon->setMomentum(-mom_hyperon);
94 94
95 fs->addModifiedParticle(nucleon); 95 fs->addModifiedParticle(nucleon);
96 fs->addModifiedParticle(lambda); 96 fs->addModifiedParticle(lambda);
97 97
98 } 98 }
99 } 99 }
100 100