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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 "G4INCLOmegaNToPiPiNChannel.hh" 38 #include "G4INCLOmegaNToPiPiNChannel.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 OmegaNToPiPiNChannel::angular 49 const G4double OmegaNToPiPiNChannel::angularSlope = 15.; // from piNToMultipions
50 50
51 OmegaNToPiPiNChannel::OmegaNToPiPiNChannel(P 51 OmegaNToPiPiNChannel::OmegaNToPiPiNChannel(Particle *p1, Particle *p2)
52 : ind2(0), 52 : ind2(0),
53 particle1(p1), 53 particle1(p1),
54 particle2(p2) 54 particle2(p2)
55 {} 55 {}
56 56
57 OmegaNToPiPiNChannel::~OmegaNToPiPiNChannel( 57 OmegaNToPiPiNChannel::~OmegaNToPiPiNChannel(){
58 58
59 } 59 }
60 60
61 void OmegaNToPiPiNChannel::fillFinalState(Fi 61 void OmegaNToPiPiNChannel::fillFinalState(FinalState *fs) {
62 62
63 Particle * nucleon; 63 Particle * nucleon;
64 Particle * omega; 64 Particle * omega;
65 if(particle1->isNucleon()) { 65 if(particle1->isNucleon()) {
66 nucleon = particle1; 66 nucleon = particle1;
67 omega = particle2; 67 omega = particle2;
68 } else { 68 } else {
69 nucleon = particle2; 69 nucleon = particle2;
70 omega = particle1; 70 omega = particle1;
71 } 71 }
72 72
73 const G4double sqrtS = KinematicsUtils 73 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, omega);
74 74
75 ind2=ParticleTable::getIsospin(nucleon 75 ind2=ParticleTable::getIsospin(nucleon->getType());
76 76
77 omega->setType(PiZero); 77 omega->setType(PiZero);
78 78
79 ParticleType pionType; 79 ParticleType pionType;
80 G4double rs1=Random::shoot(); 80 G4double rs1=Random::shoot();
81 if (ind2 == 1) { 81 if (ind2 == 1) {
82 if (rs1*2. > 1.) pionType=PiZero; 82 if (rs1*2. > 1.) pionType=PiZero;
83 else { 83 else {
84 pionType=PiPlus; 84 pionType=PiPlus;
85 ind2=-ind2; 85 ind2=-ind2;
86 } 86 }
87 } 87 }
88 else { 88 else {
89 if (rs1*2. > 1.) pionType=PiZero; 89 if (rs1*2. > 1.) pionType=PiZero;
90 else { 90 else {
91 pionType=PiMinus; 91 pionType=PiMinus;
92 ind2=-ind2; 92 ind2=-ind2;
93 } 93 }
94 } 94 }
95 95
96 96
97 const ParticleType tn=ParticleTable::g 97 const ParticleType tn=ParticleTable::getNucleonType(ind2);
98 nucleon->setType(tn); 98 nucleon->setType(tn);
99 ParticleList list; 99 ParticleList list;
100 list.push_back(nucleon); 100 list.push_back(nucleon);
101 list.push_back(omega); 101 list.push_back(omega);
102 const ThreeVector &rcolpion = omega->ge 102 const ThreeVector &rcolpion = omega->getPosition();
103 const ThreeVector zero; 103 const ThreeVector zero;
104 Particle *newPion = new Particle(pionT 104 Particle *newPion = new Particle(pionType,zero,rcolpion);
105 list.push_back(newPion); 105 list.push_back(newPion);
106 fs->addModifiedParticle(nucleon); 106 fs->addModifiedParticle(nucleon);
107 fs->addModifiedParticle(omega); 107 fs->addModifiedParticle(omega);
108 fs->addCreatedParticle(newPion); 108 fs->addCreatedParticle(newPion);
109 109
110 PhaseSpaceGenerator::generateBiased(sq 110 PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope);
111 111
112 } 112 }
113 113
114 } 114 }
115 115