| Geant4 Cross Reference |
1 //
2 // ********************************************************************
3 // * License and Disclaimer *
4 // * *
5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. *
10 // * *
11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitation of liability. *
17 // * *
18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Software license. *
24 // ********************************************************************
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 "G4INCLNNToNLKChannel.hh"
39 #include "G4INCLKinematicsUtils.hh"
40 #include "G4INCLBinaryCollisionAvatar.hh"
41 #include "G4INCLRandom.hh"
42 #include "G4INCLGlobals.hh"
43 #include "G4INCLLogger.hh"
44 #include <algorithm>
45 #include "G4INCLPhaseSpaceGenerator.hh"
46
47 namespace G4INCL {
48
49 const G4double NNToNLKChannel::angularSlope = 2.; // What is the exact effect? Sould be check
50
51 NNToNLKChannel::NNToNLKChannel(Particle *p1, Particle *p2)
52 : particle1(p1), particle2(p2)
53 {}
54
55 NNToNLKChannel::~NNToNLKChannel(){}
56
57 void NNToNLKChannel::fillFinalState(FinalState *fs) {
58
59 const G4double sqrtS = KinematicsUtils::totalEnergyInCM(particle1, particle2);
60
61 const G4int iso = ParticleTable::getIsospin(particle1->getType()) + ParticleTable::getIsospin(particle2->getType());
62
63 ParticleType KaonType;
64 particle2->setType(Lambda);
65
66 if(iso == 2) KaonType = KPlus;
67 else if(iso == -2) KaonType = KZero;
68 else if(Random::shoot() < 0.5){
69 particle1->setType(Proton);
70 KaonType = KZero;
71 }
72 else{
73 particle1->setType(Neutron);
74 KaonType = KPlus;
75 }
76
77 ParticleList list;
78 list.push_back(particle1);
79 list.push_back(particle2);
80 const ThreeVector &rcol = particle2->getPosition();
81 const ThreeVector zero;
82 Particle *kaon = new Particle(KaonType,zero,rcol);
83 list.push_back(kaon);
84
85 if(Random::shoot()<0.5) PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope);
86 else PhaseSpaceGenerator::generateBiased(sqrtS, list, 1, angularSlope);
87
88 fs->addModifiedParticle(particle1);
89 fs->addModifiedParticle(particle2);
90 fs->addCreatedParticle(kaon);
91
92 }
93 }
94