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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 "G4INCLNNToNNEtaChannel.hh" 38 #include "G4INCLNNToNNEtaChannel.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 NNToNNEtaChannel::angularSlop 49 const G4double NNToNNEtaChannel::angularSlope = 6.; // why 6.? same as in multipions...
50 50
51 NNToNNEtaChannel::NNToNNEtaChannel(Particle 51 NNToNNEtaChannel::NNToNNEtaChannel(Particle *p1, Particle *p2)
52 : iso1(0), 52 : iso1(0),
53 iso2(0), 53 iso2(0),
54 particle1(p1), 54 particle1(p1),
55 particle2(p2) 55 particle2(p2)
56 {} 56 {}
57 57
58 NNToNNEtaChannel::~NNToNNEtaChannel(){ 58 NNToNNEtaChannel::~NNToNNEtaChannel(){
59 59
60 } 60 }
61 61
62 void NNToNNEtaChannel::fillFinalState(FinalS 62 void NNToNNEtaChannel::fillFinalState(FinalState *fs) {
63 63
64 iso1=ParticleTable::getIsospin(particle1-> 64 iso1=ParticleTable::getIsospin(particle1->getType());
65 iso2=ParticleTable::getIsospin(particle2-> 65 iso2=ParticleTable::getIsospin(particle2->getType());
66 66
67 ParticleList list; 67 ParticleList list;
68 list.push_back(particle1); 68 list.push_back(particle1);
69 list.push_back(particle2); 69 list.push_back(particle2);
70 fs->addModifiedParticle(particle1); 70 fs->addModifiedParticle(particle1);
71 fs->addModifiedParticle(particle2); 71 fs->addModifiedParticle(particle2);
72 72
73 const G4double sqrtS = KinematicsUtils::to 73 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(particle1, particle2);
74 74
75 const ParticleType tn1=ParticleTable::getN 75 const ParticleType tn1=ParticleTable::getNucleonType(iso1);
76 particle1->setType(tn1); 76 particle1->setType(tn1);
77 const ParticleType tn2=ParticleTable::getN 77 const ParticleType tn2=ParticleTable::getNucleonType(iso2);
78 particle2->setType(tn2); 78 particle2->setType(tn2);
79 const ThreeVector &rcolnucleon1 = particle 79 const ThreeVector &rcolnucleon1 = particle1->getPosition();
80 const ThreeVector &rcolnucleon2 = particle 80 const ThreeVector &rcolnucleon2 = particle2->getPosition();
81 const ThreeVector rcol = (rcolnucleon1+rco 81 const ThreeVector rcol = (rcolnucleon1+rcolnucleon2)*0.5;
82 const ThreeVector zero; 82 const ThreeVector zero;
83 ParticleType etaType=Eta; 83 ParticleType etaType=Eta;
84 Particle *etaCreated = new Particle(etaTyp 84 Particle *etaCreated = new Particle(etaType,zero,rcol);
85 list.push_back(etaCreated); 85 list.push_back(etaCreated);
86 fs->addCreatedParticle(etaCreated); 86 fs->addCreatedParticle(etaCreated);
87 87
88 G4int biasIndex = ((Random::shoot()<0.5) ? 88 G4int biasIndex = ((Random::shoot()<0.5) ? 0 : 1);
89 PhaseSpaceGenerator::generateBiased(sqrtS, 89 PhaseSpaceGenerator::generateBiased(sqrtS, list, biasIndex, angularSlope);
90 90
91 } 91 }
92 92
93 } 93 }
94 94