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Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 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 "G4INCLNpiToLK2piChannel.hh" 38 #include "G4INCLNpiToLK2piChannel.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 NpiToLK2piChannel::angularSlo 49 const G4double NpiToLK2piChannel::angularSlope = 6.; // What is the exact effect? Sould be check 50 50 51 NpiToLK2piChannel::NpiToLK2piChannel(Particl 51 NpiToLK2piChannel::NpiToLK2piChannel(Particle *p1, Particle *p2) 52 : particle1(p1), particle2(p2) 52 : particle1(p1), particle2(p2) 53 {} 53 {} 54 54 55 NpiToLK2piChannel::~NpiToLK2piChannel(){} 55 NpiToLK2piChannel::~NpiToLK2piChannel(){} 56 56 57 void NpiToLK2piChannel::fillFinalState(Final 57 void NpiToLK2piChannel::fillFinalState(FinalState *fs) { 58 58 59 // p pi+ -> L K+ pi+ pi0 (1) 59 // p pi+ -> L K+ pi+ pi0 (1) 60 // p pi+ -> L K0 pi+ pi+ (1) 60 // p pi+ -> L K0 pi+ pi+ (1) 61 // 61 // 62 // p pi0 -> L K+ pi0 pi0 (1/4) 62 // p pi0 -> L K+ pi0 pi0 (1/4) 63 // p pi0 -> L K+ pi+ pi- (1) 63 // p pi0 -> L K+ pi+ pi- (1) 64 // p pi0 -> L K0 pi+ pi0 (1/2) 64 // p pi0 -> L K0 pi+ pi0 (1/2) 65 // 65 // 66 // p pi- -> L K+ pi0 pi- (1) 66 // p pi- -> L K+ pi0 pi- (1) 67 // p pi- -> L K0 pi+ pi- (1) 67 // p pi- -> L K0 pi+ pi- (1) 68 // p pi- -> L K0 pi0 pi0 (1/2) 68 // p pi- -> L K0 pi0 pi0 (1/2) 69 69 70 Particle *nucleon; 70 Particle *nucleon; 71 Particle *pion; 71 Particle *pion; 72 72 73 if(particle1->isNucleon()){ 73 if(particle1->isNucleon()){ 74 nucleon = particle1; 74 nucleon = particle1; 75 pion = particle2; 75 pion = particle2; 76 } 76 } 77 else{ 77 else{ 78 nucleon = particle2; 78 nucleon = particle2; 79 pion = particle1; 79 pion = particle1; 80 } 80 } 81 81 82 const G4double sqrtS = KinematicsUtils::to 82 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, pion); 83 83 84 const G4int iso = ParticleTable::getIsospi 84 const G4int iso = ParticleTable::getIsospin(nucleon->getType()) + ParticleTable::getIsospin(pion->getType()); 85 G4double rdm = Random::shoot(); 85 G4double rdm = Random::shoot(); 86 86 87 ParticleType KaonType; 87 ParticleType KaonType; 88 ParticleType PionType; 88 ParticleType PionType; 89 89 90 if(iso == 3 || iso == -3){ 90 if(iso == 3 || iso == -3){ 91 if(rdm < 0.5){ 91 if(rdm < 0.5){ 92 KaonType = ParticleTable::getKaonType( 92 KaonType = ParticleTable::getKaonType(iso/3); 93 PionType = PiZero; 93 PionType = PiZero; 94 } 94 } 95 else{ 95 else{ 96 KaonType = ParticleTable::getKaonType( 96 KaonType = ParticleTable::getKaonType(-iso/3); 97 PionType = ParticleTable::getPionType( 97 PionType = ParticleTable::getPionType(2*iso/3); 98 } 98 } 99 } 99 } 100 else if(pion->getType() == PiZero){ 100 else if(pion->getType() == PiZero){ 101 if(rdm*7. < 1.){ 101 if(rdm*7. < 1.){ 102 KaonType = ParticleTable::getKaonType( 102 KaonType = ParticleTable::getKaonType(iso); 103 PionType = PiZero; 103 PionType = PiZero; 104 } 104 } 105 else if(rdm*7. < 5.){ 105 else if(rdm*7. < 5.){ 106 KaonType = ParticleTable::getKaonType( 106 KaonType = ParticleTable::getKaonType(iso); 107 pion->setType(PiPlus); 107 pion->setType(PiPlus); 108 PionType = PiMinus; 108 PionType = PiMinus; 109 } 109 } 110 else{ 110 else{ 111 KaonType = ParticleTable::getKaonType( 111 KaonType = ParticleTable::getKaonType(-iso); 112 PionType = ParticleTable::getPionType( 112 PionType = ParticleTable::getPionType(2*iso); 113 } 113 } 114 } 114 } 115 else{ 115 else{ 116 if(rdm*5. < 2.){ 116 if(rdm*5. < 2.){ 117 KaonType = ParticleTable::getKaonType( 117 KaonType = ParticleTable::getKaonType(-iso); 118 PionType = PiZero; 118 PionType = PiZero; 119 } 119 } 120 else if(rdm*5. < 4.){ 120 else if(rdm*5. < 4.){ 121 KaonType = ParticleTable::getKaonType( 121 KaonType = ParticleTable::getKaonType(iso); 122 PionType = ParticleTable::getPionType( 122 PionType = ParticleTable::getPionType(-2*iso);; 123 } 123 } 124 else{ 124 else{ 125 KaonType = ParticleTable::getKaonType( 125 KaonType = ParticleTable::getKaonType(iso); 126 pion->setType(PiZero); 126 pion->setType(PiZero); 127 PionType = PiZero; 127 PionType = PiZero; 128 } 128 } 129 } 129 } 130 130 131 nucleon->setType(Lambda); 131 nucleon->setType(Lambda); 132 << 133 #ifdef INCLXX_IN_GEANT4_MODE << 134 // Erase the parent resonance information << 135 nucleon->setParentResonancePDGCode(0); << 136 nucleon->setParentResonanceID(0); << 137 pion->setParentResonancePDGCode(0); << 138 pion->setParentResonanceID(0); << 139 #endif << 140 132 141 ParticleList list; 133 ParticleList list; 142 list.push_back(nucleon); 134 list.push_back(nucleon); 143 list.push_back(pion); 135 list.push_back(pion); 144 const ThreeVector &rcol1 = nucleon->getPos 136 const ThreeVector &rcol1 = nucleon->getPosition(); 145 const ThreeVector &rcol2 = pion->getPositi 137 const ThreeVector &rcol2 = pion->getPosition(); 146 const ThreeVector zero; 138 const ThreeVector zero; 147 Particle *kaon = new Particle(KaonType,zer 139 Particle *kaon = new Particle(KaonType,zero,rcol1); 148 Particle *pion2 = new Particle(PionType,ze 140 Particle *pion2 = new Particle(PionType,zero,rcol2); 149 list.push_back(kaon); 141 list.push_back(kaon); 150 list.push_back(pion2); 142 list.push_back(pion2); 151 143 152 PhaseSpaceGenerator::generateBiased(sqrtS, 144 PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope); 153 145 154 INCL_DEBUG("NpiToLK2pi " << (kaon->getMome 146 INCL_DEBUG("NpiToLK2pi " << (kaon->getMomentum().theta()) * 180. / G4INCL::Math::pi << '\n'); 155 147 156 fs->addModifiedParticle(nucleon); 148 fs->addModifiedParticle(nucleon); 157 fs->addModifiedParticle(pion); 149 fs->addModifiedParticle(pion); 158 fs->addCreatedParticle(kaon); 150 fs->addCreatedParticle(kaon); 159 fs->addCreatedParticle(pion2); 151 fs->addCreatedParticle(pion2); 160 152 161 } 153 } 162 } 154 } 163 155