Geant4  10.03.p01
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G4INCLNNToNNEtaChannel.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 
39 #include "G4INCLKinematicsUtils.hh"
41 #include "G4INCLRandom.hh"
42 #include "G4INCLGlobals.hh"
43 #include "G4INCLLogger.hh"
44 #include <algorithm>
46 
47 namespace G4INCL {
48 
49  const G4double NNToNNEtaChannel::angularSlope = 6.; // why 6.? same as in multipions...
50 
52  : iso1(0),
53  iso2(0),
54  particle1(p1),
55  particle2(p2)
56  {}
57 
59 
60  }
61 
63 
64  iso1=ParticleTable::getIsospin(particle1->getType());
65  iso2=ParticleTable::getIsospin(particle2->getType());
66 
67  ParticleList list;
68  list.push_back(particle1);
69  list.push_back(particle2);
70  fs->addModifiedParticle(particle1);
71  fs->addModifiedParticle(particle2);
72 
73  const G4double sqrtS = KinematicsUtils::totalEnergyInCM(particle1, particle2);
74 
76  particle1->setType(tn1);
78  particle2->setType(tn2);
79  const ThreeVector &rcolnucleon1 = particle1->getPosition();
80  const ThreeVector &rcolnucleon2 = particle2->getPosition();
81  const ThreeVector rcol = (rcolnucleon1+rcolnucleon2)*0.5;
82  const ThreeVector zero;
83  ParticleType etaType=Eta;
84  Particle *etaCreated = new Particle(etaType,zero,rcol);
85  list.push_back(etaCreated);
86  fs->addCreatedParticle(etaCreated);
87 
88  G4int biasIndex = ((Random::shoot()<0.5) ? 0 : 1);
89  PhaseSpaceGenerator::generateBiased(sqrtS, list, biasIndex, angularSlope);
90 
91  }
92 
93 }
void addCreatedParticle(Particle *p)
NNToNNEtaChannel(Particle *, Particle *)
void fillFinalState(FinalState *fs)
ParticleType getNucleonType(const G4int isosp)
Get the type of nucleon.
int G4int
Definition: G4Types.hh:78
void generateBiased(const G4double sqrtS, ParticleList &particles, const size_t index, const G4double slope)
Generate a biased event in the CM system.
G4int getIsospin(const ParticleType t)
Get the isospin of a particle.
G4INCL::ParticleType getType() const
const G4INCL::ThreeVector & getPosition() const
void setType(ParticleType t)
G4double shoot()
Definition: G4INCLRandom.cc:93
double G4double
Definition: G4Types.hh:76
G4double totalEnergyInCM(Particle const *const p1, Particle const *const p2)
void addModifiedParticle(Particle *p)