Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/processes/hadronic/models/inclxx/incl_physics/src/G4INCLOmegaNElasticChannel.cc

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 25 //
 26 // INCL++ intra-nuclear cascade model
 27 // Alain Boudard, CEA-Saclay, France
 28 // Joseph Cugnon, University of Liege, Belgium
 29 // Jean-Christophe David, CEA-Saclay, France
 30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
 31 // Sylvie Leray, CEA-Saclay, France
 32 // Davide Mancusi, CEA-Saclay, France
 33 //
 34 #define INCLXX_IN_GEANT4_MODE 1
 35 
 36 #include "globals.hh"
 37 
 38 #include "G4INCLOmegaNElasticChannel.hh"
 39 #include "G4INCLKinematicsUtils.hh"
 40 #include "G4INCLBinaryCollisionAvatar.hh"
 41 #include "G4INCLRandom.hh"
 42 #include "G4INCLGlobals.hh"
 43 #include "G4INCLLogger.hh"
 44 
 45 namespace G4INCL {
 46 
 47     OmegaNElasticChannel::OmegaNElasticChannel(Particle *p1, Particle *p2)
 48     : particle1(p1), particle2(p2)
 49     {
 50 
 51     }
 52 
 53     OmegaNElasticChannel::~OmegaNElasticChannel(){
 54 
 55     }
 56 
 57     void OmegaNElasticChannel::fillFinalState(FinalState *fs) {
 58         Particle * nucleon;
 59         Particle * omega;
 60         if(particle1->isNucleon()) {
 61             nucleon = particle1;
 62             omega = particle2;
 63         } else {
 64             nucleon = particle2;
 65             omega = particle1;
 66         }
 67 
 68           G4double sh=nucleon->getEnergy()+omega->getEnergy();
 69           G4double mn=nucleon->getMass();
 70           G4double me=omega->getMass();
 71           G4double en=(sh*sh+mn*mn-me*me)/(2*sh);
 72           nucleon->setEnergy(en);
 73           G4double ee=std::sqrt(en*en-mn*mn+me*me);
 74           omega->setEnergy(ee);
 75           G4double pn=std::sqrt(en*en-mn*mn);         
 76 
 77           ThreeVector mom_nucleon;
 78 
 79 // Isotropy
 80           mom_nucleon = Random::normVector(pn);
 81 
 82 
 83           nucleon->setMomentum(mom_nucleon);
 84           omega->setMomentum(-mom_nucleon);
 85 
 86          fs->addModifiedParticle(nucleon);
 87           fs->addModifiedParticle(omega);
 88     
 89         }
 90 }
 91