ECCE @ EIC Software
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
G4INCLNNToNSKpiChannel.cc
Go to the documentation of this file. Or view the newest version in sPHENIX GitHub for file G4INCLNNToNSKpiChannel.cc
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 "G4INCLNNToNSKpiChannel.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 NNToNSKpiChannel::angularSlope = 2.; // What is the exact effect? Sould be check
50 
51  NNToNSKpiChannel::NNToNSKpiChannel(Particle *p1, Particle *p2)
52  : particle1(p1), particle2(p2)
53  {}
54 
55  NNToNSKpiChannel::~NNToNSKpiChannel(){}
56 
57  void NNToNSKpiChannel::fillFinalState(FinalState *fs) {
58 
59  // pp (36) pn (36)
60  //
61  // pp -> p pi+ S- K+ (9)
62  // pp -> p pi+ S0 K0 (9)
63  // pp -> p pi0 S+ K0 (4)
64  // pp -> n pi+ S+ K0 (2)
65  // pp -> p pi0 S0 K+ (4)
66  // pp -> n pi+ S0 K+ (2)
67  // pp -> p pi- S+ K+ (2)
68  // pp -> n pi0 S+ K+ (4)
69 
70  // pn -> p pi0 S- K+ (4)
71  // pn -> n pi+ S- K+ (2)
72  // pn -> p pi0 S0 K0 (2)
73  // pn -> n pi+ S0 K0 (1)
74  // pn -> p pi+ S- K0 (9)
75 
76  const G4double sqrtS = KinematicsUtils::totalEnergyInCM(particle1, particle2);
77 
78  const G4int iso = ParticleTable::getIsospin(particle1->getType()) + ParticleTable::getIsospin(particle2->getType());
79 
80  ParticleType KaonType;
81  ParticleType PionType;
82 
83  G4double rdm = Random::shoot();
84 
85  if(iso == 2){
86  if(rdm * 36. < 9.){
87  KaonType = KPlus;
88  PionType = PiPlus;
89  particle2->setType(SigmaMinus);
90  }
91  else if(rdm * 36. < 18.){
92  KaonType = KZero;
93  PionType = PiPlus;
94  particle2->setType(SigmaZero);
95  }
96  else if(rdm * 36. < 22.){
97  KaonType = KZero;
98  PionType = PiZero;
99  particle2->setType(SigmaPlus);
100  }
101  else if(rdm * 36. < 24.){
102  KaonType = KZero;
103  PionType = PiPlus;
104  particle1->setType(Neutron);
105  particle2->setType(SigmaPlus);
106  }
107  else if(rdm * 36. < 28.){
108  KaonType = KPlus;
109  PionType = PiZero;
110  particle2->setType(SigmaZero);
111  }
112  else if(rdm * 36. < 30.){
113  KaonType = KPlus;
114  PionType = PiPlus;
115  particle1->setType(Neutron);
116  particle2->setType(SigmaZero);
117  }
118  else if(rdm * 36. < 32.){
119  KaonType = KPlus;
120  PionType = PiMinus;
121  particle2->setType(SigmaPlus);
122  }
123  else{
124  KaonType = KPlus;
125  PionType = PiZero;
126  particle1->setType(Neutron);
127  particle2->setType(SigmaPlus);
128  }
129 
130  }
131  else if(iso == -2){
132  if(rdm * 36. < 9.){
133  KaonType = KZero;
134  PionType = PiMinus;
135  particle2->setType(SigmaPlus);
136  }
137  else if(rdm * 36. < 18.){
138  KaonType = KPlus;
139  PionType = PiMinus;
140  particle2->setType(SigmaZero);
141  }
142  else if(rdm * 36. < 22.){
143  KaonType = KPlus;
144  PionType = PiZero;
145  particle2->setType(SigmaMinus);
146  }
147  else if(rdm * 36. < 24.){
148  KaonType = KPlus;
149  PionType = PiMinus;
150  particle1->setType(Proton);
151  particle2->setType(SigmaMinus);
152  }
153  else if(rdm * 36. < 28.){
154  KaonType = KZero;
155  PionType = PiZero;
156  particle2->setType(SigmaZero);
157  }
158  else if(rdm * 36. < 30.){
159  KaonType = KZero;
160  PionType = PiMinus;
161  particle1->setType(Proton);
162  particle2->setType(SigmaZero);
163  }
164  else if(rdm * 36. < 32.){
165  KaonType = KZero;
166  PionType = PiPlus;
167  particle2->setType(SigmaMinus);
168  }
169  else{
170  KaonType = KZero;
171  PionType = PiZero;
172  particle1->setType(Proton);
173  particle2->setType(SigmaMinus);
174  }
175 
176  }
177  else if(rdm*36. < 4.){
178  KaonType = KPlus;
179  PionType = PiZero;
180  particle1->setType(Proton);
181  particle2->setType(SigmaMinus);
182  }
183  else if(rdm*36. < 6.){
184  KaonType = KZero;
185  PionType = PiZero;
186  particle1->setType(Neutron);
187  particle2->setType(SigmaPlus);
188  }
189  else if(rdm*36. < 8.){
190  KaonType = KPlus;
191  PionType = PiPlus;
192  particle1->setType(Neutron);
193  particle2->setType(SigmaMinus);
194  }
195  else if(rdm*36. < 9.){
196  KaonType = KZero;
197  PionType = PiMinus;
198  particle1->setType(Proton);
199  particle2->setType(SigmaPlus);
200  }
201  else if(rdm*36. < 18.){
202  KaonType = KZero;
203  PionType = PiZero;
204  particle1->setType(Proton);
205  particle2->setType(SigmaZero);
206  }
207  else if(rdm*36. < 27.){
208  KaonType = KPlus;
209  PionType = PiZero;
210  particle1->setType(Neutron);
211  particle2->setType(SigmaZero);
212  }
213  else if(rdm*36. < 28.){
214  KaonType = KZero;
215  PionType = PiPlus;
216  particle1->setType(Neutron);
217  particle2->setType(SigmaZero);
218  }
219  else if(rdm*36. < 30.){
220  KaonType = KPlus;
221  PionType = PiMinus;
222  particle1->setType(Proton);
223  particle2->setType(SigmaZero);
224  }
225  else if(rdm*36. < 32.){
226  KaonType = KZero;
227  PionType = PiPlus;
228  particle1->setType(Proton);
229  particle2->setType(SigmaMinus);
230  }
231  else{
232  KaonType = KPlus;
233  PionType = PiMinus;
234  particle1->setType(Neutron);
235  particle2->setType(SigmaPlus);
236  }
237 
238  ParticleList list;
239  list.push_back(particle1);
240  list.push_back(particle2);
241  const ThreeVector &rcol1 = particle1->getPosition();
242  const ThreeVector &rcol2 = particle2->getPosition();
243  const ThreeVector zero;
244  Particle *pion = new Particle(PionType,zero,rcol1);
245  Particle *kaon = new Particle(KaonType,zero,rcol2);
246  list.push_back(kaon);
247  list.push_back(pion);
248 
249  if(Random::shoot()<0.5) PhaseSpaceGenerator::generateBiased(sqrtS, list, 0, angularSlope);
250  else PhaseSpaceGenerator::generateBiased(sqrtS, list, 1, angularSlope);
251 
252  INCL_DEBUG("NNToNSKpi " << (kaon->getMomentum().theta()) * 180. / G4INCL::Math::pi << '\n');
253 
254  fs->addModifiedParticle(particle1);
255  fs->addModifiedParticle(particle2);
256  fs->addCreatedParticle(kaon);
257  fs->addCreatedParticle(pion);
258 
259  }
260 }