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G4INCLOmegaNToPiPiNChannel.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 OmegaNToPiPiNChannel::angularSlope = 15.; // from piNToMultipions
50 
52  : ind2(0),
53  particle1(p1),
54  particle2(p2)
55  {}
56 
58 
59  }
60 
62 
63  Particle * nucleon;
64  Particle * omega;
65  if(particle1->isNucleon()) {
66  nucleon = particle1;
67  omega = particle2;
68  } else {
69  nucleon = particle2;
70  omega = particle1;
71  }
72 
73  const G4double sqrtS = KinematicsUtils::totalEnergyInCM(nucleon, omega);
74 
76 
77  omega->setType(PiZero);
78 
79  ParticleType pionType;
80  G4double rs1=Random::shoot();
81  if (ind2 == 1) {
82  if (rs1*2. > 1.) pionType=PiZero;
83  else {
84  pionType=PiPlus;
85  ind2=-ind2;
86  }
87  }
88  else {
89  if (rs1*2. > 1.) pionType=PiZero;
90  else {
91  pionType=PiMinus;
92  ind2=-ind2;
93  }
94  }
95 
96 
98  nucleon->setType(tn);
99  ParticleList list;
100  list.push_back(nucleon);
101  list.push_back(omega);
102  const ThreeVector &rcolpion = omega->getPosition();
103  const ThreeVector zero;
104  Particle *newPion = new Particle(pionType,zero,rcolpion);
105  list.push_back(newPion);
106  fs->addModifiedParticle(nucleon);
107  fs->addModifiedParticle(omega);
108  fs->addCreatedParticle(newPion);
109 
111 
112  }
113 
114 }