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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 "G4INCLPiNToOmegaChannel.hh" 38 #include "G4INCLPiNToOmegaChannel.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 44
45 namespace G4INCL { 45 namespace G4INCL {
46 46
47 PiNToOmegaChannel::PiNToOmegaChannel(Parti 47 PiNToOmegaChannel::PiNToOmegaChannel(Particle *p1, Particle *p2)
48 : particle1(p1), particle2(p2) 48 : particle1(p1), particle2(p2)
49 { 49 {
50 50
51 } 51 }
52 52
53 PiNToOmegaChannel::~PiNToOmegaChannel(){ 53 PiNToOmegaChannel::~PiNToOmegaChannel(){
54 54
55 } 55 }
56 56
57 void PiNToOmegaChannel::fillFinalState(Fin 57 void PiNToOmegaChannel::fillFinalState(FinalState *fs) {
58 Particle * nucleon; 58 Particle * nucleon;
59 Particle * pion; 59 Particle * pion;
60 if(particle1->isNucleon()) { 60 if(particle1->isNucleon()) {
61 nucleon = particle1; 61 nucleon = particle1;
62 pion = particle2; 62 pion = particle2;
63 } else { 63 } else {
64 nucleon = particle2; 64 nucleon = particle2;
65 pion = particle1; 65 pion = particle1;
66 } 66 }
>> 67
67 68
68 G4int iso=ParticleTable::getIsospin(nu 69 G4int iso=ParticleTable::getIsospin(nucleon->getType())+ParticleTable::getIsospin(pion->getType());
69 // assert(iso == 1 || iso == -1); 70 // assert(iso == 1 || iso == -1);
70 if (iso == 1) { 71 if (iso == 1) {
71 nucleon->setType(Proton); 72 nucleon->setType(Proton);
72 } 73 }
73 else if (iso == -1) { 74 else if (iso == -1) {
74 nucleon->setType(Neutron); 75 nucleon->setType(Neutron);
75 } 76 }
76 pion->setType(Omega); 77 pion->setType(Omega);
77 #ifdef INCLXX_IN_GEANT4_MODE <<
78 // Erase the parent resonance information <<
79 nucleon->setParentResonancePDGCode(0); <<
80 nucleon->setParentResonanceID(0); <<
81 pion->setParentResonancePDGCode(0); <<
82 pion->setParentResonanceID(0); <<
83 #endif <<
84 // nucleon->setEnergy(std::sqrt((nucleo 78 // nucleon->setEnergy(std::sqrt((nucleon->getMass())*(nucleon->getMass())+(mom_nucleon.mag()*mom_nucleon.mag())));
85 // pion->setEnergy(std::sqrt((pion->get 79 // pion->setEnergy(std::sqrt((pion->getMass())*(pion->getMass())+(mom_nucleon.mag()*mom_nucleon.mag())));
86 G4double sh=nucleon->getEnergy()+pion->getEn 80 G4double sh=nucleon->getEnergy()+pion->getEnergy();
87 G4double mn=nucleon->getMass(); 81 G4double mn=nucleon->getMass();
88 G4double me=pion->getMass(); 82 G4double me=pion->getMass();
89 G4double en=(sh*sh+mn*mn-me*me)/(2*sh); 83 G4double en=(sh*sh+mn*mn-me*me)/(2*sh);
90 nucleon->setEnergy(en); 84 nucleon->setEnergy(en);
91 G4double ee=std::sqrt(en*en-mn*mn+me*me); 85 G4double ee=std::sqrt(en*en-mn*mn+me*me);
92 pion->setEnergy(ee); 86 pion->setEnergy(ee);
93 G4double pn=std::sqrt(en*en-mn*mn); 87 G4double pn=std::sqrt(en*en-mn*mn);
94 88
95 ThreeVector mom_nucleon = Random::normVect 89 ThreeVector mom_nucleon = Random::normVector(pn);
96 90
97 nucleon->setMomentum(mom_nucleon); 91 nucleon->setMomentum(mom_nucleon);
98 pion->setMomentum(-mom_nucleon); 92 pion->setMomentum(-mom_nucleon);
99 93
100 fs->addModifiedParticle(nucleon); 94 fs->addModifiedParticle(nucleon);
101 fs->addModifiedParticle(pion); 95 fs->addModifiedParticle(pion);
102 } 96 }
103 97
104 } 98 }
105 99