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Geant4/processes/hadronic/models/inclxx/incl_physics/src/G4INCLNpiToLKpiChannel.cc

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Diff markup

Differences between /processes/hadronic/models/inclxx/incl_physics/src/G4INCLNpiToLKpiChannel.cc (Version 11.3.0) and /processes/hadronic/models/inclxx/incl_physics/src/G4INCLNpiToLKpiChannel.cc (Version 11.0)


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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 "G4INCLNpiToLKpiChannel.hh"               38 #include "G4INCLNpiToLKpiChannel.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 NpiToLKpiChannel::angularSlop     49   const G4double NpiToLKpiChannel::angularSlope = 6.; // What is the exact effect? Sould be check
 50                                                    50   
 51   NpiToLKpiChannel::NpiToLKpiChannel(Particle      51   NpiToLKpiChannel::NpiToLKpiChannel(Particle *p1, Particle *p2)
 52     : particle1(p1), particle2(p2)                 52     : particle1(p1), particle2(p2)
 53     {}                                             53     {}
 54                                                    54   
 55   NpiToLKpiChannel::~NpiToLKpiChannel(){}          55   NpiToLKpiChannel::~NpiToLKpiChannel(){}
 56                                                    56   
 57   void NpiToLKpiChannel::fillFinalState(FinalS     57   void NpiToLKpiChannel::fillFinalState(FinalState *fs) {
 58                                                    58     
 59         // ratio                                   59         // ratio
 60         // p pi+ (1)  p pi0 (3/2)   p pi- (2)      60         // p pi+ (1)  p pi0 (3/2)   p pi- (2)
 61         //                                         61         //
 62         // p pi0 -> L K+ pi0 (1/2)                 62         // p pi0 -> L K+ pi0 (1/2)
 63         // all the others (1)                      63         // all the others (1)
 64                                                    64         
 65     Particle *nucleon;                             65     Particle *nucleon;
 66     Particle *pion;                                66     Particle *pion;
 67                                                    67         
 68     if(particle1->isNucleon()){                    68     if(particle1->isNucleon()){
 69       nucleon = particle1;                         69       nucleon = particle1;
 70       pion = particle2;                            70       pion = particle2;
 71     }                                              71     }
 72     else{                                          72     else{
 73       nucleon = particle2;                         73       nucleon = particle2;
 74       pion = particle1;                            74       pion = particle1;
 75     }                                              75     }
 76                                                    76     
 77     const G4double sqrtS = KinematicsUtils::to     77     const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, pion);
 78                                                    78     
 79     const G4int iso = ParticleTable::getIsospi     79     const G4int iso = ParticleTable::getIsospin(nucleon->getType()) + ParticleTable::getIsospin(pion->getType());
 80     G4double rdm = Random::shoot();                80     G4double rdm = Random::shoot();
 81                                                    81     
 82     ParticleType KaonType;                         82     ParticleType KaonType;
 83                                                    83     
 84     if(iso == 3 || iso == -3){                     84     if(iso == 3 || iso == -3){
 85       KaonType = ParticleTable::getKaonType(is     85       KaonType = ParticleTable::getKaonType(iso/3);
 86     }                                              86     }
 87     else if(pion->getType() == PiZero){            87     else if(pion->getType() == PiZero){
 88       if(rdm*3. < 1.){                             88       if(rdm*3. < 1.){
 89         KaonType = ParticleTable::getKaonType(     89         KaonType = ParticleTable::getKaonType(iso);
 90       }                                            90       }
 91       else{                                        91       else{
 92         KaonType = ParticleTable::getKaonType(     92         KaonType = ParticleTable::getKaonType(-iso);
 93         pion->setType(ParticleTable::getPionTy     93         pion->setType(ParticleTable::getPionType(2*iso));
 94       }                                            94       }
 95     }                                              95     }
 96     else{                                          96     else{
 97       if(rdm < 0.5){                               97       if(rdm < 0.5){
 98         KaonType = ParticleTable::getKaonType(     98         KaonType = ParticleTable::getKaonType(-iso);
 99       }                                            99       }
100       else{                                       100       else{
101         KaonType = ParticleTable::getKaonType(    101         KaonType = ParticleTable::getKaonType(iso);
102         pion->setType(PiZero);                    102         pion->setType(PiZero);
103       }                                           103       }
104     }                                             104     }
105                                                   105     
106     nucleon->setType(Lambda);                     106     nucleon->setType(Lambda);
107                                                << 
108 #ifdef INCLXX_IN_GEANT4_MODE                   << 
109     // Erase the parent resonance information  << 
110     nucleon->setParentResonancePDGCode(0);     << 
111     nucleon->setParentResonanceID(0);          << 
112     pion->setParentResonancePDGCode(0);        << 
113     pion->setParentResonanceID(0);             << 
114 #endif                                         << 
115                                                   107     
116     ParticleList list;                            108     ParticleList list;
117     list.push_back(nucleon);                      109     list.push_back(nucleon);
118     list.push_back(pion);                         110     list.push_back(pion);
119     const ThreeVector &rcol = nucleon->getPosi    111     const ThreeVector &rcol = nucleon->getPosition();
120     const ThreeVector zero;                       112     const ThreeVector zero;
121     Particle *kaon = new Particle(KaonType,zer    113     Particle *kaon = new Particle(KaonType,zero,rcol);
122     list.push_back(kaon);                         114     list.push_back(kaon);
123                                                   115     
124     PhaseSpaceGenerator::generateBiased(sqrtS,    116     PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope);
125                                                   117     
126     INCL_DEBUG("NpiToLKpi " << (kaon->getMomen    118     INCL_DEBUG("NpiToLKpi " << (kaon->getMomentum().theta()) * 180. / G4INCL::Math::pi << '\n');
127                                                   119     
128     fs->addModifiedParticle(nucleon);             120     fs->addModifiedParticle(nucleon);
129     fs->addModifiedParticle(pion);                121     fs->addModifiedParticle(pion);
130     fs->addCreatedParticle(kaon);                 122     fs->addCreatedParticle(kaon);
131                                                   123     
132   }                                               124   }
133 }                                                 125 }
134                                                   126