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25 // 25 //
26 // INCL++ intra-nuclear cascade model 26 // INCL++ intra-nuclear cascade model
27 // Alain Boudard, CEA-Saclay, France << 27 // Pekka Kaitaniemi, CEA and Helsinki Institute of Physics
28 // Joseph Cugnon, University of Liege, Belgium << 28 // Davide Mancusi, CEA
29 // Jean-Christophe David, CEA-Saclay, France << 29 // Alain Boudard, CEA
30 // Pekka Kaitaniemi, CEA-Saclay, France, and H << 30 // Sylvie Leray, CEA
31 // Sylvie Leray, CEA-Saclay, France << 31 // Joseph Cugnon, University of Liege
32 // Davide Mancusi, CEA-Saclay, France <<
33 // 32 //
34 #define INCLXX_IN_GEANT4_MODE 1 33 #define INCLXX_IN_GEANT4_MODE 1
35 34
36 #include "globals.hh" 35 #include "globals.hh"
37 36
38 /* 37 /*
39 * G4INCLBinaryCollisionAvatar.cc 38 * G4INCLBinaryCollisionAvatar.cc
40 * 39 *
41 * \date Jun 5, 2009 40 * \date Jun 5, 2009
42 * \author Pekka Kaitaniemi 41 * \author Pekka Kaitaniemi
43 */ 42 */
44 43
45 #include "G4INCLBinaryCollisionAvatar.hh" 44 #include "G4INCLBinaryCollisionAvatar.hh"
46 #include "G4INCLElasticChannel.hh" 45 #include "G4INCLElasticChannel.hh"
47 #include "G4INCLRecombinationChannel.hh" 46 #include "G4INCLRecombinationChannel.hh"
48 #include "G4INCLDeltaProductionChannel.hh" 47 #include "G4INCLDeltaProductionChannel.hh"
49 #include "G4INCLNNToMultiPionsChannel.hh" <<
50 #include "G4INCLNNToNNEtaChannel.hh" <<
51 #include "G4INCLNDeltaEtaProductionChannel.hh" <<
52 #include "G4INCLNNEtaToMultiPionsChannel.hh" <<
53 #include "G4INCLNNToNNOmegaChannel.hh" <<
54 #include "G4INCLNDeltaOmegaProductionChannel.h <<
55 #include "G4INCLNNOmegaToMultiPionsChannel.hh" <<
56 #include "G4INCLCrossSections.hh" 48 #include "G4INCLCrossSections.hh"
57 #include "G4INCLKinematicsUtils.hh" 49 #include "G4INCLKinematicsUtils.hh"
58 #include "G4INCLRandom.hh" 50 #include "G4INCLRandom.hh"
59 #include "G4INCLParticleTable.hh" 51 #include "G4INCLParticleTable.hh"
60 #include "G4INCLPauliBlocking.hh" 52 #include "G4INCLPauliBlocking.hh"
61 #include "G4INCLPiNElasticChannel.hh" << 53 #include "G4INCLPionNucleonChannel.hh"
62 #include "G4INCLPiNToDeltaChannel.hh" <<
63 #include "G4INCLPiNToMultiPionsChannel.hh" <<
64 #include "G4INCLPiNToEtaChannel.hh" <<
65 #include "G4INCLPiNToOmegaChannel.hh" <<
66 #include "G4INCLEtaNElasticChannel.hh" <<
67 #include "G4INCLEtaNToPiNChannel.hh" <<
68 #include "G4INCLEtaNToPiPiNChannel.hh" <<
69 #include "G4INCLOmegaNElasticChannel.hh" <<
70 #include "G4INCLOmegaNToPiNChannel.hh" <<
71 #include "G4INCLNNToNLKChannel.hh" <<
72 #include "G4INCLNNToNSKChannel.hh" <<
73 #include "G4INCLNNToNLKpiChannel.hh" <<
74 #include "G4INCLNNToNSKpiChannel.hh" <<
75 #include "G4INCLNNToNLK2piChannel.hh" <<
76 #include "G4INCLNNToNSK2piChannel.hh" <<
77 #include "G4INCLNNToNNKKbChannel.hh" <<
78 #include "G4INCLNNToMissingStrangenessChannel. <<
79 #include "G4INCLNDeltaToNLKChannel.hh" <<
80 #include "G4INCLNDeltaToNSKChannel.hh" <<
81 #include "G4INCLNDeltaToDeltaLKChannel.hh" <<
82 #include "G4INCLNDeltaToDeltaSKChannel.hh" <<
83 #include "G4INCLNDeltaToNNKKbChannel.hh" <<
84 #include "G4INCLNpiToLKChannel.hh" <<
85 #include "G4INCLNpiToSKChannel.hh" <<
86 #include "G4INCLNpiToLKpiChannel.hh" <<
87 #include "G4INCLNpiToSKpiChannel.hh" <<
88 #include "G4INCLNpiToLK2piChannel.hh" <<
89 #include "G4INCLNpiToSK2piChannel.hh" <<
90 #include "G4INCLNpiToNKKbChannel.hh" <<
91 #include "G4INCLNpiToMissingStrangenessChannel <<
92 #include "G4INCLNKElasticChannel.hh" <<
93 #include "G4INCLNKToNKChannel.hh" <<
94 #include "G4INCLNKToNKpiChannel.hh" <<
95 #include "G4INCLNKToNK2piChannel.hh" <<
96 #include "G4INCLNKbElasticChannel.hh" <<
97 #include "G4INCLNKbToNKbChannel.hh" <<
98 #include "G4INCLNKbToNKbpiChannel.hh" <<
99 #include "G4INCLNKbToNKb2piChannel.hh" <<
100 #include "G4INCLNKbToLpiChannel.hh" <<
101 #include "G4INCLNKbToL2piChannel.hh" <<
102 #include "G4INCLNKbToSpiChannel.hh" <<
103 #include "G4INCLNKbToS2piChannel.hh" <<
104 #include "G4INCLNYElasticChannel.hh" <<
105 #include "G4INCLNLToNSChannel.hh" <<
106 #include "G4INCLNSToNLChannel.hh" <<
107 #include "G4INCLNSToNSChannel.hh" <<
108 #include "G4INCLOmegaNToPiPiNChannel.hh" <<
109 #include "G4INCLStore.hh" 54 #include "G4INCLStore.hh"
110 #include "G4INCLBook.hh" 55 #include "G4INCLBook.hh"
111 #include "G4INCLLogger.hh" 56 #include "G4INCLLogger.hh"
112 #include <string> 57 #include <string>
113 #include <sstream> 58 #include <sstream>
114 // #include <cassert> 59 // #include <cassert>
115 #include "G4INCLNNbarElasticChannel.hh" <<
116 #include "G4INCLNNbarCEXChannel.hh" <<
117 #include "G4INCLNNbarToLLbarChannel.hh" <<
118 #include "G4INCLNNbarToNNbarpiChannel.hh" <<
119 #include "G4INCLNNbarToNNbar2piChannel.hh" <<
120 #include "G4INCLNNbarToNNbar3piChannel.hh" <<
121 #include "G4INCLNNbarToAnnihilationChannel.hh" <<
122 60
123 namespace G4INCL { 61 namespace G4INCL {
124 62
125 // WARNING: if you update the default cutNN << 63 const G4double BinaryCollisionAvatar::cutNN = 1910;
126 // cutNNSquared variable, too. << 64 const G4double BinaryCollisionAvatar::cutNNSquared = cutNN*cutNN;
127 G4ThreadLocal G4double BinaryCollisionAvatar <<
128 G4ThreadLocal G4double BinaryCollisionAvatar <<
129 G4ThreadLocal G4double BinaryCollisionAvatar <<
130 65
131 BinaryCollisionAvatar::BinaryCollisionAvatar 66 BinaryCollisionAvatar::BinaryCollisionAvatar(G4double time, G4double crossSection,
132 G4INCL::Nucleus *n, G4INCL::Particle *p1 67 G4INCL::Nucleus *n, G4INCL::Particle *p1, G4INCL::Particle *p2)
133 : InteractionAvatar(time, n, p1, p2), theC << 68 : InteractionAvatar(time, n, p1, p2), theCrossSection(crossSection)
134 isParticle1Spectator(false), <<
135 isParticle2Spectator(false), <<
136 isElastic(false), <<
137 isStrangeProduction(false) <<
138 { 69 {
139 setType(CollisionAvatarType); 70 setType(CollisionAvatarType);
140 } 71 }
141 72
142 BinaryCollisionAvatar::~BinaryCollisionAvata 73 BinaryCollisionAvatar::~BinaryCollisionAvatar() {
143 } 74 }
144 75
145 G4INCL::IChannel* BinaryCollisionAvatar::get << 76 G4INCL::IChannel* BinaryCollisionAvatar::getChannel() const {
146 // We already check cutNN at avatar creati 77 // We already check cutNN at avatar creation time, but we have to check it
147 // again here. For composite projectiles, 78 // again here. For composite projectiles, we might have created independent
148 // avatars with no cutNN before any collis 79 // avatars with no cutNN before any collision took place.
149 if(particle1->isNucleon() 80 if(particle1->isNucleon()
150 && particle2->isNucleon() 81 && particle2->isNucleon()
151 && theNucleus->getStore()->getBook().g << 82 && theNucleus->getStore()->getBook()->getAcceptedCollisions()!=0) {
152 const G4double energyCM2 = KinematicsUti 83 const G4double energyCM2 = KinematicsUtils::squareTotalEnergyInCM(particle1, particle2);
153 // Below a certain cut value we don't do 84 // Below a certain cut value we don't do anything:
154 if(energyCM2 < cutNNSquared) { 85 if(energyCM2 < cutNNSquared) {
155 INCL_DEBUG("CM energy = sqrt(" << ener << 86 DEBUG("CM energy = sqrt(" << energyCM2 << ") MeV < sqrt(" << cutNNSquared
156 << ") MeV = cutNN" << "; returning << 87 << ") MeV = cutNN" << "; returning a NULL channel" << std::endl);
157 InteractionAvatar::restoreParticles(); 88 InteractionAvatar::restoreParticles();
158 return NULL; 89 return NULL;
159 } 90 }
160 } 91 }
161 92
162 /** Check again the distance of approach. 93 /** Check again the distance of approach. In order for the avatar to be
163 * realised, we have to perform a check in 94 * realised, we have to perform a check in the CM system. We define a
164 * distance four-vector as 95 * distance four-vector as
165 * \f[ (0, \Delta\vec{x}), \f] 96 * \f[ (0, \Delta\vec{x}), \f]
166 * where \f$\Delta\vec{x}\f$ is the distan 97 * where \f$\Delta\vec{x}\f$ is the distance vector of the particles at
167 * their minimum distance of approach (i.e 98 * their minimum distance of approach (i.e. at the avatar time). By
168 * boosting this four-vector to the CM fra 99 * boosting this four-vector to the CM frame of the two particles and we
169 * obtain a new four vector 100 * obtain a new four vector
170 * \f[ (\Delta t', \Delta\vec{x}'), \f] 101 * \f[ (\Delta t', \Delta\vec{x}'), \f]
171 * with a non-zero time component (the col 102 * with a non-zero time component (the collision happens simultaneously for
172 * the two particles in the lab system, bu 103 * the two particles in the lab system, but not in the CM system). In order
173 * for the avatar to be realised, we requi 104 * for the avatar to be realised, we require that
174 * \f[ |\Delta\vec{x}'| \leq \sqrt{\sigma/ 105 * \f[ |\Delta\vec{x}'| \leq \sqrt{\sigma/\pi}.\f]
175 * Note that \f$|\Delta\vec{x}'|\leq|\Delt 106 * Note that \f$|\Delta\vec{x}'|\leq|\Delta\vec{x}|\f$; thus, the condition
176 * above is more restrictive than the chec 107 * above is more restrictive than the check that we perform in
177 * G4INCL::Propagation::StandardPropagatio 108 * G4INCL::Propagation::StandardPropagationModel::generateBinaryCollisionAvatar.
178 * In other words, the avatar generation c 109 * In other words, the avatar generation cannot miss any physical collision
179 * avatars. 110 * avatars.
180 */ 111 */
181 ThreeVector minimumDistance = particle1->g 112 ThreeVector minimumDistance = particle1->getPosition();
182 minimumDistance -= particle2->getPosition( 113 minimumDistance -= particle2->getPosition();
183 const G4double betaDotX = boostVector.dot( 114 const G4double betaDotX = boostVector.dot(minimumDistance);
184 const G4double minDist = Math::tenPi*(mini 115 const G4double minDist = Math::tenPi*(minimumDistance.mag2() + betaDotX*betaDotX / (1.-boostVector.mag2()));
185 if(minDist > theCrossSection) { 116 if(minDist > theCrossSection) {
186 INCL_DEBUG("CM distance of approach is t << 117 DEBUG("CM distance of approach is too small: " << minDist << ">" <<
187 theCrossSection <<"; returning a NULL << 118 theCrossSection <<"; returning a NULL channel" << std::endl);
188 InteractionAvatar::restoreParticles(); 119 InteractionAvatar::restoreParticles();
189 return NULL; 120 return NULL;
190 } 121 }
191 122
192 /** Bias apply for this reaction in order << 123 if(particle1->isNucleon() && particle2->isNucleon()) { // NN->NN
193 * ParticleBias for all stange particles. << 124 G4double elasticCX = CrossSections::elastic(particle1,
194 * Can be reduced after because of the saf << 125 particle2);
195 */ << 126 G4double deltaProductionCX = CrossSections::deltaProduction(particle1,
196 G4double bias_apply = 1.; << 127 particle2);
197 if(bias != 1.) bias_apply = Particle::getB << 128
198 << 129 G4bool isElastic = true;
199 //// NN << 130 if(elasticCX/(elasticCX + deltaProductionCX) < Random::shoot()) {
200 if(particle1->isNucleon() && particle2->is << 131 // NN -> N Delta channel is chosen
201 <<
202 G4double NLKProductionCX = CrossSections <<
203 G4double NSKProductionCX = CrossSections <<
204 G4double NLKpiProductionCX = CrossSectio <<
205 G4double NSKpiProductionCX = CrossSectio <<
206 G4double NLK2piProductionCX = CrossSecti <<
207 G4double NSK2piProductionCX = CrossSecti <<
208 G4double NNKKbProductionCX = CrossSectio <<
209 G4double NNMissingCX = CrossSections::NN <<
210 <<
211 const G4double UnStrangeProdCX = CrossSe <<
212 + CrossSect <<
213 + CrossSect <<
214 + CrossSect <<
215 + CrossSect <<
216 + CrossSect <<
217 const G4double StrangenessProdCX = (NLKP <<
218 <<
219 G4double counterweight = (1. - bias_appl <<
220 <<
221 if(counterweight < 0.5) { <<
222 counterweight = 0.5; <<
223 bias_apply = 0.5*UnStrangeProdCX/Stra <<
224 NLKProductionCX = CrossSections::NNTo <<
225 NSKProductionCX = CrossSections::NNTo <<
226 NLKpiProductionCX = CrossSections::NN <<
227 NSKpiProductionCX = CrossSections::NN <<
228 NLK2piProductionCX = CrossSections::N <<
229 NSK2piProductionCX = CrossSections::N <<
230 NNKKbProductionCX = CrossSections::NN <<
231 NNMissingCX = CrossSections::NNToMiss <<
232 } <<
233 <<
234 <<
235 const G4double elasticCX = CrossSections <<
236 const G4double deltaProductionCX = Cross <<
237 const G4double onePiProductionCX = Cross <<
238 const G4double twoPiProductionCX = Cross <<
239 const G4double threePiProductionCX = Cro <<
240 const G4double fourPiProductionCX = Cros <<
241 <<
242 const G4double etaProductionCX = CrossSe <<
243 const G4double etadeltaProductionCX = Cr <<
244 const G4double etaonePiProductionCX = Cr <<
245 const G4double etatwoPiProductionCX = Cr <<
246 const G4double etathreePiProductionCX = <<
247 const G4double etafourPiProductionCX = C <<
248 const G4double omegaProductionCX = Cross <<
249 const G4double omegadeltaProductionCX = <<
250 const G4double omegaonePiProductionCX = <<
251 const G4double omegatwoPiProductionCX = <<
252 const G4double omegathreePiProductionCX <<
253 const G4double omegafourPiProductionCX = <<
254 <<
255 const G4double totCX=CrossSections::tota <<
256 <<
257 // assert(std::fabs(totCX-elasticCX-deltaProdu <<
258 <<
259 const G4double rChannel=Random::shoot() <<
260 <<
261 if(elasticCX > rChannel) { <<
262 // Elastic NN channel <<
263 isElastic = true; <<
264 INCL_DEBUG("NN interaction: elastic ch <<
265 weight = counterweight; <<
266 return new ElasticChannel(particle1, p <<
267 } else if((elasticCX + deltaProductionCX <<
268 isElastic = false; <<
269 // NN -> N Delta channel is chosen <<
270 INCL_DEBUG("NN interaction: Delta chan <<
271 weight = counterweight; <<
272 return new DeltaProductionChannel(part <<
273 } else if(elasticCX + deltaProductionCX <<
274 isElastic = false; <<
275 // NN -> PiNN channel is chosen <<
276 INCL_DEBUG("NN interaction: one Pion c <<
277 weight = counterweight; <<
278 return new NNToMultiPionsChannel(1,par <<
279 } else if(elasticCX + deltaProductionCX <<
280 isElastic = false; <<
281 // NN -> 2PiNN channel is chosen <<
282 INCL_DEBUG("NN interaction: two Pions <<
283 weight = counterweight; <<
284 return new NNToMultiPionsChannel(2,par <<
285 } else if(elasticCX + deltaProductionCX <<
286 isElastic = false; <<
287 // NN -> 3PiNN channel is chosen <<
288 INCL_DEBUG("NN interaction: three Pion <<
289 weight = counterweight; <<
290 return new NNToMultiPionsChannel(3,par <<
291 } else if(elasticCX + deltaProductionCX <<
292 isElastic = false; <<
293 // NN -> 4PiNN channel is chosen <<
294 INCL_DEBUG("NN interaction: four <<
295 weight = counterweight; <<
296 return new NNToMultiPionsChannel <<
297 } else if(elasticCX + deltaProductionCX <<
298 + etaProductionCX > <<
299 isElastic = false; <<
300 // NN -> NNEta channel is chosen <<
301 INCL_DEBUG("NN interaction: Eta channel <<
302 weight = counterweight; <<
303 return new NNToNNEtaChannel(particle1, <<
304 } else if(elasticCX + deltaProductionCX <<
305 + etaProductionCX + <<
306 isElastic = false; <<
307 // NN -> N Delta Eta channel is chosen <<
308 INCL_DEBUG("NN interaction: Delta Eta c <<
309 weight = counterweight; <<
310 return new NDeltaEtaProductionChannel(p <<
311 } else if(elasticCX + deltaProductionCX <<
312 + etaProductionCX + <<
313 isElastic = false; <<
314 // NN -> EtaPiNN channel is chosen <<
315 INCL_DEBUG("NN interaction: Eta + one P <<
316 weight = counterweight; <<
317 return new NNEtaToMultiPionsChannel(1,p <<
318 } else if(elasticCX + deltaProductionCX <<
319 + etaProductionCX + <<
320 isElastic = false; <<
321 // NN -> Eta2PiNN channel is chosen <<
322 INCL_DEBUG("NN interaction: Eta + two P <<
323 weight = counterweight; <<
324 return new NNEtaToMultiPionsChannel(2,p <<
325 } else if(elasticCX + deltaProductionCX <<
326 + etaProductionCX + <<
327 isElastic = false; <<
328 // NN -> Eta3PiNN channel is chosen <<
329 INCL_DEBUG("NN interaction: Eta + three <<
330 weight = counterweight; <<
331 return new NNEtaToMultiPionsChannel(3,p <<
332 } else if(elasticCX + deltaProductionCX <<
333 + etaProductionCX + <<
334 isElastic = false; <<
335 // NN -> Eta4PiNN channel is chosen <<
336 INCL_DEBUG("NN interaction: Eta + four <<
337 weight = counterweight; <<
338 return new NNEtaToMultiPionsChannel(4,p <<
339 } else if(elasticCX + deltaProductionCX <<
340 + etaProductionCX + <<
341 + omegaProductionCX <<
342 isElastic = false; <<
343 // NN -> NNOmega channel is chosen <<
344 INCL_DEBUG("NN interaction: Omega chann <<
345 weight = counterweight; <<
346 return new NNToNNOmegaChannel(particle1 <<
347 } else if(elasticCX + deltaProductionCX <<
348 + etaProductionCX + <<
349 + omegaProductionCX <<
350 isElastic = false; <<
351 // NN -> N Delta Omega channel is chosen <<
352 INCL_DEBUG("NN interaction: Delta Omega <<
353 weight = counterweight; <<
354 return new NDeltaOmegaProductionChannel <<
355 } else if(elasticCX + deltaProductionCX <<
356 + etaProductionCX + <<
357 + omegaProductionCX <<
358 isElastic = false; <<
359 // NN -> OmegaPiNN channel is chosen <<
360 INCL_DEBUG("NN interaction: Omega + one <<
361 weight = counterweight; <<
362 return new NNOmegaToMultiPionsChannel(1 <<
363 } else if(elasticCX + deltaProductionCX <<
364 + etaProductionCX + <<
365 + omegaProductionCX <<
366 isElastic = false; <<
367 // NN -> Omega2PiNN channel is chosen <<
368 INCL_DEBUG("NN interaction: Omega + two <<
369 weight = counterweight; <<
370 return new NNOmegaToMultiPionsChannel(2 <<
371 } else if(elasticCX + deltaProductionCX <<
372 + etaProductionCX + <<
373 + omegaProductionCX <<
374 isElastic = false; <<
375 // NN -> Omega3PiNN channel is chosen <<
376 INCL_DEBUG("NN interaction: Omega + thr <<
377 weight = counterweight; <<
378 return new NNOmegaToMultiPionsChannel(3 <<
379 } else if(elasticCX + deltaProductionCX <<
380 + etaProductionCX + <<
381 + omegaProductionCX <<
382 isElastic = false; <<
383 // NN -> Omega4PiNN channel is chosen <<
384 INCL_DEBUG("NN interaction: Omega + fou <<
385 weight = counterweight; <<
386 return new NNOmegaToMultiPionsChannel(4 <<
387 } else if(elasticCX + deltaProductionCX <<
388 + etaProductionCX + <<
389 + omegaProductionCX <<
390 + NLKProductionCX > <<
391 isElastic = false; <<
392 isStrangeProduction = true; <<
393 // NN -> NLK channel is chosen <<
394 INCL_DEBUG("NN interaction: NLK channe <<
395 weight = bias_apply; <<
396 return new NNToNLKChannel(particle1, p <<
397 } else if(elasticCX + deltaProductionCX <<
398 + etaProductionCX + <<
399 + omegaProductionCX <<
400 + NLKProductionCX + <<
401 isElastic = false; <<
402 isStrangeProduction = true; <<
403 // NN -> NLKpi channel is chosen <<
404 INCL_DEBUG("NN interaction: NLKpi chan <<
405 weight = bias_apply; <<
406 return new NNToNLKpiChannel(particle1, <<
407 } else if(elasticCX + deltaProductionCX <<
408 + etaProductionCX + <<
409 + omegaProductionCX <<
410 + NLKProductionCX + <<
411 isElastic = false; <<
412 isStrangeProduction = true; <<
413 // NN -> NLK2pi channel is chosen <<
414 INCL_DEBUG("NN interaction: NLK2pi cha <<
415 weight = bias_apply; <<
416 return new NNToNLK2piChannel(particle1 <<
417 } else if(elasticCX + deltaProductionCX <<
418 + etaProductionCX + <<
419 + omegaProductionCX <<
420 + NLKProductionCX + <<
421 isElastic = false; 132 isElastic = false;
422 isStrangeProduction = true; <<
423 // NN -> NSK channel is chosen <<
424 INCL_DEBUG("NN interaction: NSK channe <<
425 weight = bias_apply; <<
426 return new NNToNSKChannel(particle1, p <<
427 } else if(elasticCX + deltaProductionCX <<
428 + etaProductionCX + <<
429 + omegaProductionCX <<
430 + NLKProductionCX + <<
431 isElastic = false; <<
432 isStrangeProduction = true; <<
433 // NN -> NSKpi channel is chosen <<
434 INCL_DEBUG("NN interaction: NSKpi chan <<
435 weight = bias_apply; <<
436 return new NNToNSKpiChannel(particle1, <<
437 } else if(elasticCX + deltaProductionCX <<
438 + etaProductionCX + <<
439 + omegaProductionCX <<
440 + NLKProductionCX + <<
441 isElastic = false; <<
442 isStrangeProduction = true; <<
443 // NN -> NSK2pi channel is chosen <<
444 INCL_DEBUG("NN interaction: NSK2pi cha <<
445 weight = bias_apply; <<
446 return new NNToNSK2piChannel(particle1 <<
447 } else if(elasticCX + deltaProductionCX <<
448 + etaProductionCX + <<
449 + omegaProductionCX <<
450 + NLKProductionCX + <<
451 isElastic = false; <<
452 isStrangeProduction = true; <<
453 // NN -> NNKKb channel is chosen <<
454 INCL_DEBUG("NN interaction: NNKKb chan <<
455 weight = bias_apply; <<
456 return new NNToNNKKbChannel(particle1, <<
457 } else if(elasticCX + deltaProductionCX <<
458 + etaProductionCX + <<
459 + omegaProductionCX <<
460 + NLKProductionCX + <<
461 isElastic = false; <<
462 isStrangeProduction = true; <<
463 // NN -> Missing Strangeness channel is chosen <<
464 INCL_DEBUG("NN interaction: Missing St <<
465 weight = bias_apply; <<
466 return new NNToMissingStrangenessChann <<
467 } else { <<
468 INCL_WARN("inconsistency within the NN <<
469 if(NNMissingCX>0.) { <<
470 INCL_WARN("Returning an Missing St <<
471 weight = bias_apply; <<
472 isElastic = false; <<
473 isStrangeProduction = true; <<
474 return new NNToNNKKbChannel(partic <<
475 } else if(NNKKbProductionCX>0.) { <<
476 INCL_WARN("Returning an NNKKb chan <<
477 weight = bias_apply; <<
478 isElastic = false; <<
479 isStrangeProduction = true; <<
480 return new NNToNNKKbChannel(partic <<
481 } else if(NSK2piProductionCX>0.) { <<
482 INCL_WARN("Returning an NSK2pi cha <<
483 weight = bias_apply; <<
484 isElastic = false; <<
485 isStrangeProduction = true; <<
486 return new NNToNSK2piChannel(parti <<
487 } else if(NSKpiProductionCX>0.) { <<
488 INCL_WARN("Returning an NSKpi chan <<
489 weight = bias_apply; <<
490 isElastic = false; <<
491 isStrangeProduction = true; <<
492 return new NNToNSKpiChannel(partic <<
493 } else if(NSKProductionCX>0.) { <<
494 INCL_WARN("Returning an NSK channe <<
495 weight = bias_apply; <<
496 isElastic = false; <<
497 isStrangeProduction = true; <<
498 return new NNToNSKChannel(particle <<
499 } else if(NLK2piProductionCX>0.) { <<
500 INCL_WARN("Returning an NLK2pi cha <<
501 weight = bias_apply; <<
502 isElastic = false; <<
503 isStrangeProduction = true; <<
504 return new NNToNLK2piChannel(parti <<
505 } else if(NLKpiProductionCX>0.) { <<
506 INCL_WARN("Returning an NLKpi chan <<
507 weight = bias_apply; <<
508 isElastic = false; <<
509 isStrangeProduction = true; <<
510 return new NNToNLKpiChannel(partic <<
511 } else if(NLKProductionCX>0.) { <<
512 INCL_WARN("Returning an NLK channe <<
513 weight = bias_apply; <<
514 isElastic = false; <<
515 isStrangeProduction = true; <<
516 return new NNToNLKChannel(particle <<
517 } else if(omegafourPiProductionCX>0.) <<
518 INCL_WARN("Returning an Omega + fo <<
519 weight = counterweight; <<
520 isElastic = false; <<
521 return new NNOmegaToMultiPionsChan <<
522 } else if(omegathreePiProductionCX>0.) <<
523 INCL_WARN("Returning an Omega + th <<
524 weight = counterweight; <<
525 isElastic = false; <<
526 return new NNOmegaToMultiPionsChan <<
527 } else if(omegatwoPiProductionCX>0.) { <<
528 INCL_WARN("Returning an Omega + tw <<
529 weight = counterweight; <<
530 isElastic = false; <<
531 return new NNOmegaToMultiPionsChan <<
532 } else if(omegaonePiProductionCX>0.) { <<
533 INCL_WARN("Returning an Omega + on <<
534 weight = counterweight; <<
535 isElastic = false; <<
536 return new NNOmegaToMultiPionsChannel <<
537 } else if(omegadeltaProductionCX>0.) { <<
538 INCL_WARN("Returning an Omega + De <<
539 weight = counterweight; <<
540 isElastic = false; <<
541 return new NDeltaOmegaProductionCh <<
542 } else if(omegaProductionCX>0.) { <<
543 INCL_WARN("Returning an Omega chan <<
544 weight = counterweight; <<
545 isElastic = false; <<
546 return new NNToNNOmegaChannel(part <<
547 } else if(etafourPiProductionCX>0.) { <<
548 INCL_WARN("Returning an Eta + four <<
549 weight = counterweight; <<
550 isElastic = false; <<
551 return new NNEtaToMultiPionsChanne <<
552 } else if(etathreePiProductionCX>0.) { <<
553 INCL_WARN("Returning an Eta + thre <<
554 weight = counterweight; <<
555 isElastic = false; <<
556 return new NNEtaToMultiPionsChanne <<
557 } else if(etatwoPiProductionCX>0.) { <<
558 INCL_WARN("Returning an Eta + two <<
559 weight = counterweight; <<
560 isElastic = false; <<
561 return new NNEtaToMultiPionsChanne <<
562 } else if(etaonePiProductionCX>0.) { <<
563 INCL_WARN("Returning an Eta + one <<
564 weight = counterweight; <<
565 isElastic = false; <<
566 return new NNEtaToMultiPionsChanne <<
567 } else if(etadeltaProductionCX>0.) { <<
568 INCL_WARN("Returning an Eta + Delt <<
569 weight = counterweight; <<
570 isElastic = false; <<
571 return new NDeltaEtaProductionChan <<
572 } else if(etaProductionCX>0.) { <<
573 INCL_WARN("Returning an Eta channe <<
574 weight = counterweight; <<
575 isElastic = false; <<
576 return new NNToNNEtaChannel(partic <<
577 } else if(fourPiProductionCX>0.) { <<
578 INCL_WARN("Returning a 4pi channel <<
579 weight = counterweight; <<
580 isElastic = false; <<
581 return new NNToMultiPionsChannel(4 <<
582 } else if(threePiProductionCX>0.) { <<
583 INCL_WARN("Returning a 3pi channel <<
584 weight = counterweight; <<
585 isElastic = false; <<
586 return new NNToMultiPionsChannel(3 <<
587 } else if(twoPiProductionCX>0.) { <<
588 INCL_WARN("Returning a 2pi channel <<
589 weight = counterweight; <<
590 isElastic = false; <<
591 return new NNToMultiPionsChannel(2 <<
592 } else if(onePiProductionCX>0.) { <<
593 INCL_WARN("Returning a 1pi channel <<
594 weight = counterweight; <<
595 isElastic = false; <<
596 return new NNToMultiPionsChannel(1 <<
597 } else if(deltaProductionCX>0.) { <<
598 INCL_WARN("Returning a delta-produ <<
599 weight = counterweight; <<
600 isElastic = false; <<
601 return new DeltaProductionChannel( <<
602 } else { <<
603 INCL_WARN("Returning an elastic ch <<
604 weight = counterweight; <<
605 isElastic = true; <<
606 return new ElasticChannel(particle <<
607 } <<
608 } <<
609 <<
610 //// NDelta <<
611 } <<
612 else if((particle1->isNucleon() && particl <<
613 (particle1->isDelta() && part <<
614 <<
615 G4double NLKProductionCX = CrossSect <<
616 G4double NSKProductionCX = CrossSect <<
617 G4double DeltaLKProductionCX = Cross <<
618 G4double DeltaSKProductionCX = Cross <<
619 G4double NNKKbProductionCX = CrossSe <<
620 <<
621 const G4double UnStrangeProdCX = Cro <<
622 const G4double StrangenessProdCX = ( <<
623 <<
624 G4double counterweight = (1. - bias_ <<
625 <<
626 if(counterweight < 0.5){ <<
627 counterweight = 0.5; <<
628 bias_apply = 0.5*UnStrangeProdCX/ <<
629 <<
630 NLKProductionCX = CrossSections:: <<
631 NSKProductionCX = CrossSections:: <<
632 DeltaLKProductionCX = CrossSectio <<
633 DeltaSKProductionCX = CrossSectio <<
634 NNKKbProductionCX = CrossSections <<
635 } <<
636 <<
637 G4double elasticCX = CrossSections:: <<
638 G4double recombinationCX = CrossSect <<
639 <<
640 const G4double rChannel=Random::shoo <<
641 <<
642 if(elasticCX > rChannel) { <<
643 isElastic = true; <<
644 // Elastic N Delta channel <<
645 INCL_DEBUG("NDelta interaction: e <<
646 weight = counterweight; <<
647 return new ElasticChannel(particl <<
648 } else if (elasticCX + recombination <<
649 isElastic = false; <<
650 // Recombination <<
651 // NDelta -> NN channel is chosen <<
652 INCL_DEBUG("NDelta interaction: r <<
653 weight = counterweight; <<
654 return new RecombinationChannel(p <<
655 } else if (elasticCX + recombination <<
656 isElastic = false; <<
657 isStrangeProduction = true; <<
658 // NDelta -> NLK channel is chosen <<
659 INCL_DEBUG("NDelta interaction: N <<
660 weight = bias_apply; <<
661 return new NDeltaToNLKChannel(par <<
662 } else if (elasticCX + recombination <<
663 isElastic = false; <<
664 isStrangeProduction = true; <<
665 // NDelta -> NSK channel is chosen <<
666 INCL_DEBUG("NDelta interaction: N <<
667 weight = bias_apply; <<
668 return new NDeltaToNSKChannel(par <<
669 } else if (elasticCX + recombination <<
670 isElastic = false; <<
671 isStrangeProduction = true; <<
672 // NDelta -> DeltaLK channel is chosen <<
673 INCL_DEBUG("NDelta interaction: D <<
674 weight = bias_apply; <<
675 return new NDeltaToDeltaLKChannel <<
676 } else if (elasticCX + recombination <<
677 isElastic = false; <<
678 isStrangeProduction = true; <<
679 // NDelta -> DeltaSK channel is chosen <<
680 INCL_DEBUG("NDelta interaction: D <<
681 weight = bias_apply; <<
682 return new NDeltaToDeltaSKChannel <<
683 } else if (elasticCX + recombination <<
684 isElastic = false; <<
685 isStrangeProduction = true; <<
686 // NDelta -> NNKKb channel is chosen <<
687 INCL_DEBUG("NDelta interaction: N <<
688 weight = bias_apply; <<
689 return new NDeltaToNNKKbChannel(p <<
690 } <<
691 else{ <<
692 INCL_ERROR("rChannel > (Strangene <<
693 weight = counterweight; <<
694 isElastic = true; <<
695 return new ElasticChannel(particl <<
696 } <<
697 <<
698 //// DeltaDelta <<
699 } else if(particle1->isDelta() && particle <<
700 isElastic = true; <<
701 INCL_DEBUG("DeltaDelta interaction: el <<
702 return new ElasticChannel(particle1, p <<
703 <<
704 //// PiN <<
705 } else if(isPiN) { <<
706 <<
707 G4double LKProdCX = CrossSections::NpiTo <<
708 G4double SKProdCX = CrossSections::NpiTo <<
709 G4double LKpiProdCX = CrossSections::Npi <<
710 G4double SKpiProdCX = CrossSections::Npi <<
711 G4double LK2piProdCX = CrossSections::Np <<
712 G4double SK2piProdCX = CrossSections::Np <<
713 G4double NKKbProdCX = CrossSections::Npi <<
714 G4double MissingCX = CrossSections::NpiT <<
715 <<
716 const G4double UnStrangeProdCX = CrossSe <<
717 + CrossSect <<
718 + CrossSect <<
719 const G4double StrangenessProdCX = (LKPr <<
720 <<
721 G4double counterweight = (1. - bias_appl <<
722 <<
723 if(counterweight < 0.5) { <<
724 counterweight = 0.5; <<
725 bias_apply = 0.5*UnStrangeProdCX/Stra <<
726 LKProdCX = CrossSections::NpiToLK(par <<
727 SKProdCX = CrossSections::NpiToSK(par <<
728 LKpiProdCX = CrossSections::NpiToLKpi <<
729 SKpiProdCX = CrossSections::NpiToSKpi <<
730 LK2piProdCX = CrossSections::NpiToLK2 <<
731 SK2piProdCX = CrossSections::NpiToSK2 <<
732 NKKbProdCX = CrossSections::NpiToNKKb <<
733 MissingCX = CrossSections::NpiToMissi <<
734 } 133 }
735 <<
736 <<
737 const G4double elasticCX = CrossSections <<
738 const G4double deltaProductionCX = Cross <<
739 const G4double onePiProductionCX = Cross <<
740 const G4double twoPiProductionCX = Cross <<
741 const G4double threePiProductionCX = <<
742 const G4double etaProductionCX = Cros <<
743 const G4double omegaProductionCX = Cr <<
744 <<
745 const G4double totCX=CrossSections::tota <<
746 <<
747 // assert(std::fabs(totCX-elasticCX-deltaProdu <<
748 134
749 const G4double rChannel=Random::shoot() << 135 if(isElastic) { // Elastic NN channel
750 << 136 DEBUG("NN interaction: elastic channel chosen" << std::endl);
751 if(elasticCX > rChannel) { << 137 return new ElasticChannel(theNucleus, particle1, particle2);
752 isElastic = true; << 138 } else { // Delta production
753 // Elastic PiN channel << 139 // Inelastic NN channel
754 INCL_DEBUG("PiN interaction: elastic c << 140 DEBUG("NN interaction: inelastic channel chosen" << std::endl);
755 weight = counterweight; << 141 return new DeltaProductionChannel(particle1, particle2, theNucleus);
756 return new PiNElasticChannel(particle1 << 142 }
757 } else if(elasticCX + deltaProductionCX << 143 } else if((particle1->isNucleon() && particle2->isDelta()) ||
758 isElastic = false; << 144 (particle1->isDelta() && particle2->isNucleon())) {
759 // PiN -> Delta channel is chosen << 145 G4double elasticCX = CrossSections::elastic(particle1,
760 INCL_DEBUG("PiN interaction: Delta cha << 146 particle2);
761 weight = counterweight; << 147 G4double recombinationCX = CrossSections::recombination(particle1,
762 return new PiNToDeltaChannel(particle1 << 148 particle2);
763 } else if(elasticCX + deltaProductionCX << 149
764 isElastic = false; << 150 G4bool isElastic = true;
765 // PiN -> PiNPi channel is chosen << 151 if(elasticCX/(elasticCX + recombinationCX) < Random::shoot()) {
766 INCL_DEBUG("PiN interaction: one Pion << 152 // N Delta -> NN channel is chosen
767 weight = counterweight; <<
768 return new PiNToMultiPionsChannel(2,pa <<
769 } else if(elasticCX + deltaProductionCX <<
770 isElastic = false; <<
771 // PiN -> PiN2Pi channel is chosen <<
772 INCL_DEBUG("PiN interaction: two Pions <<
773 weight = counterweight; <<
774 return new PiNToMultiPionsChannel(3,pa <<
775 } else if(elasticCX + deltaProductionCX <<
776 isElastic = false; <<
777 // PiN -> PiN3Pi channel is chosen <<
778 INCL_DEBUG("PiN interaction: three Pio <<
779 weight = counterweight; <<
780 return new PiNToMultiPionsChannel(4,pa <<
781 } else if(elasticCX + deltaProductionCX <<
782 isElastic = false; <<
783 // PiN -> EtaN channel is chosen <<
784 INCL_DEBUG("PiN interaction: Eta chann <<
785 weight = counterweight; <<
786 return new PiNToEtaChannel(particle1, <<
787 } else if(elasticCX + deltaProductionCX <<
788 isElastic = false; <<
789 // PiN -> OmegaN channel is chosen <<
790 INCL_DEBUG("PiN interaction: Omega cha <<
791 weight = counterweight; <<
792 return new PiNToOmegaChannel(particle1 <<
793 } else if(elasticCX + deltaProductionCX <<
794 + LKProdCX > rChanne <<
795 isElastic = false; <<
796 isStrangeProduction = true; <<
797 // PiN -> LK channel is chosen <<
798 INCL_DEBUG("PiN interaction: LK channe <<
799 weight = bias_apply; <<
800 return new NpiToLKChannel(particle1, p <<
801 } else if(elasticCX + deltaProductionCX <<
802 + LKProdCX + SKProdC <<
803 isElastic = false; <<
804 isStrangeProduction = true; <<
805 // PiN -> SK channel is chosen <<
806 INCL_DEBUG("PiN interaction: SK channe <<
807 weight = bias_apply; <<
808 return new NpiToSKChannel(particle1, p <<
809 } else if(elasticCX + deltaProductionCX <<
810 + LKProdCX + SKProdC <<
811 isElastic = false; <<
812 isStrangeProduction = true; <<
813 // PiN -> LKpi channel is chosen <<
814 INCL_DEBUG("PiN interaction: LKpi chan <<
815 weight = bias_apply; <<
816 return new NpiToLKpiChannel(particle1, <<
817 } else if(elasticCX + deltaProductionCX <<
818 + LKProdCX + SKProdC <<
819 isElastic = false; <<
820 isStrangeProduction = true; <<
821 // PiN -> SKpi channel is chosen <<
822 INCL_DEBUG("PiN interaction: SKpi chan <<
823 weight = bias_apply; <<
824 return new NpiToSKpiChannel(particle1, <<
825 } else if(elasticCX + deltaProductionCX <<
826 + LKProdCX + SKProdC <<
827 isElastic = false; <<
828 isStrangeProduction = true; <<
829 // PiN -> LK2pi channel is chosen <<
830 INCL_DEBUG("PiN interaction: LK2pi cha <<
831 weight = bias_apply; <<
832 return new NpiToLK2piChannel(particle1 <<
833 } else if(elasticCX + deltaProductionCX <<
834 + LKProdCX + SKProdC <<
835 isElastic = false; <<
836 isStrangeProduction = true; <<
837 // PiN -> SK2pi channel is chosen <<
838 INCL_DEBUG("PiN interaction: SK2pi cha <<
839 weight = bias_apply; <<
840 return new NpiToSK2piChannel(particle1 <<
841 } else if(elasticCX + deltaProductionCX <<
842 + LKProdCX + SKProdC <<
843 isElastic = false; 153 isElastic = false;
844 isStrangeProduction = true; <<
845 // PiN -> NKKb channel is chosen <<
846 INCL_DEBUG("PiN interaction: NKKb chan <<
847 weight = bias_apply; <<
848 return new NpiToNKKbChannel(particle1, <<
849 } else if(elasticCX + deltaProductionCX <<
850 + LKProdCX + SKProdC <<
851 isElastic = false; <<
852 isStrangeProduction = true; <<
853 // PiN -> Missinge Strangeness channel is chos <<
854 INCL_DEBUG("PiN interaction: Missinge <<
855 weight = bias_apply; <<
856 return new NpiToMissingStrangenessChan <<
857 } <<
858 else { <<
859 INCL_WARN("inconsistency within the P <<
860 if(MissingCX>0.) { <<
861 INCL_WARN("Returning a Missinge St <<
862 weight = bias_apply; <<
863 isElastic = false; <<
864 isStrangeProduction = true; <<
865 return new NpiToMissingStrangeness <<
866 } else if(NKKbProdCX>0.) { <<
867 INCL_WARN("Returning a NKKb channe <<
868 weight = bias_apply; <<
869 isElastic = false; <<
870 isStrangeProduction = true; <<
871 return new NpiToNKKbChannel(partic <<
872 } else if(SK2piProdCX>0.) { <<
873 INCL_WARN("Returning a SK2pi chann <<
874 weight = bias_apply; <<
875 isElastic = false; <<
876 isStrangeProduction = true; <<
877 return new NpiToSK2piChannel(parti <<
878 } else if(LK2piProdCX>0.) { <<
879 INCL_WARN("Returning a LK2pi chann <<
880 weight = bias_apply; <<
881 isElastic = false; <<
882 isStrangeProduction = true; <<
883 return new NpiToLK2piChannel(parti <<
884 } else if(SKpiProdCX>0.) { <<
885 INCL_WARN("Returning a SKpi channe <<
886 weight = bias_apply; <<
887 isElastic = false; <<
888 isStrangeProduction = true; <<
889 return new NpiToSKpiChannel(partic <<
890 } else if(LKpiProdCX>0.) { <<
891 INCL_WARN("Returning a LKpi channe <<
892 weight = bias_apply; <<
893 isElastic = false; <<
894 isStrangeProduction = true; <<
895 return new NpiToLKpiChannel(partic <<
896 } else if(SKProdCX>0.) { <<
897 INCL_WARN("Returning a SK channel" <<
898 weight = bias_apply; <<
899 isElastic = false; <<
900 isStrangeProduction = true; <<
901 return new NpiToSKChannel(particle <<
902 } else if(LKProdCX>0.) { <<
903 INCL_WARN("Returning a LK channel" <<
904 weight = bias_apply; <<
905 isElastic = false; <<
906 isStrangeProduction = true; <<
907 return new NpiToLKChannel(particle <<
908 } else if(omegaProductionCX>0.) { <<
909 INCL_WARN("Returning a Omega chann <<
910 weight = counterweight; <<
911 isElastic = false; <<
912 return new PiNToOmegaChannel(parti <<
913 } else if(etaProductionCX>0.) { <<
914 INCL_WARN("Returning a Eta channel <<
915 weight = counterweight; <<
916 isElastic = false; <<
917 return new PiNToEtaChannel(particl <<
918 } else if(threePiProductionCX>0.) { <<
919 INCL_WARN("Returning a 3pi channel <<
920 weight = counterweight; <<
921 isElastic = false; <<
922 return new PiNToMultiPionsChannel( <<
923 } else if(twoPiProductionCX>0.) { <<
924 INCL_WARN("Returning a 2pi channel <<
925 weight = counterweight; <<
926 isElastic = false; <<
927 return new PiNToMultiPionsChannel( <<
928 } else if(onePiProductionCX>0.) { <<
929 INCL_WARN("Returning a 1pi channel <<
930 weight = counterweight; <<
931 isElastic = false; <<
932 return new PiNToMultiPionsChannel( <<
933 } else if(deltaProductionCX>0.) { <<
934 INCL_WARN("Returning a delta-produ <<
935 weight = counterweight; <<
936 isElastic = false; <<
937 return new PiNToDeltaChannel(parti <<
938 } else { <<
939 INCL_WARN("Returning an elastic ch <<
940 weight = counterweight; <<
941 isElastic = true; <<
942 return new PiNElasticChannel(parti <<
943 } <<
944 } 154 }
945 } else if ((particle1->isNucleon() && part <<
946 //// EtaN <<
947 <<
948 const G4double elasticCX = <<
949 const G4double onePiProduc <<
950 const G4double twoPiProduc <<
951 const G4double totCX=Cross <<
952 // assert(std::fabs(totCX-elasticCX-onePiProdu <<
953 <<
954 const G4double rChannel=Ra <<
955 <<
956 if(elasticCX > rChannel) { <<
957 // Elastic EtaN channel <<
958 isElastic = true; <<
959 INCL_DEBUG("EtaN inter <<
960 return new EtaNElastic <<
961 } else if(elasticCX + oneP <<
962 isElastic = false; <<
963 // EtaN -> EtaPiN channel is chosen <<
964 INCL_DEBUG("EtaN inter <<
965 return new EtaNToPiNCh <<
966 } else if(elasticCX + oneP <<
967 isElastic = false; <<
968 // EtaN -> EtaPiPiN channel is chosen <<
969 INCL_DEBUG("EtaN inter <<
970 return new EtaNToPiPiN <<
971 } <<
972 155
973 else { << 156 if(isElastic) { // Elastic N Delta channel
974 INCL_WARN("inconsisten << 157 DEBUG("NDelta interaction: elastic channel chosen" << std::endl);
975 if(twoPiProductionCX>0 << 158 return new ElasticChannel(theNucleus, particle1, particle2);
976 INCL_WARN("Returni << 159 } else { // Recombination
977 isElastic = false; << 160 DEBUG("NDelta interaction: recombination channel chosen" << std::endl);
978 return new EtaNToP << 161 return new RecombinationChannel(theNucleus, particle1, particle2);
979 } else if(onePiProduct << 162 }
980 INCL_WARN("Returni << 163 } else if(particle1->isDelta() && particle2->isDelta()) {
981 isElastic = false; << 164 DEBUG("DeltaDelta interaction: elastic channel chosen" << std::endl);
982 return new EtaNToP << 165 return new ElasticChannel(theNucleus, particle1, particle2);
983 } else { << 166 } else if((particle1->isNucleon() && particle2->isPion()) ||
984 INCL_WARN("Returni << 167 (particle1->isPion() && particle2->isNucleon())) {
985 isElastic = true; << 168 return new PionNucleonChannel(particle1, particle2, theNucleus, shouldUseLocalEnergy());
986 return new EtaNEla << 169 } else {
987 } << 170 DEBUG("BinaryCollisionAvatar can only handle nucleons (for the moment)."
988 } << 171 << std::endl
989 << 172 << particle1->print()
990 } else if ((particle1->isNucleon() && part << 173 << std::endl
991 //// OmegaN << 174 << particle2->print()
992 << 175 << std::endl);
993 const G4double elasticCX = <<
994 const G4double onePiProduc <<
995 const G4double twoPiProduc <<
996 const G4double totCX=Cross <<
997 // assert(std::fabs(totCX-elasticCX-onePiProdu <<
998 <<
999 const G4double rChannel=Ra <<
1000 <<
1001 if(elasticCX > rChannel) <<
1002 // Elastic OmegaN channel <<
1003 isElastic = true; <<
1004 INCL_DEBUG("OmegaN in <<
1005 return new OmegaNElas <<
1006 } else if(elasticCX + one <<
1007 isElastic = false; <<
1008 // OmegaN -> PiN channel is chosen <<
1009 INCL_DEBUG("OmegaN interaction: P <<
1010 return new OmegaNToPiNChannel(par <<
1011 } else if(elasticCX + one <<
1012 isElastic = false; <<
1013 // OmegaN -> PiPiN channel is chosen <<
1014 INCL_DEBUG("OmegaN in <<
1015 return new OmegaNToPi <<
1016 } <<
1017 else { <<
1018 INCL_WARN("inconsiste <<
1019 if(twoPiProductionCX> <<
1020 INCL_WARN("Return <<
1021 isElastic = false <<
1022 return new OmegaN <<
1023 } else if(onePiProduc <<
1024 INCL_WARN("Return <<
1025 isElastic = false <<
1026 return new OmegaN <<
1027 } else { <<
1028 INCL_WARN("Return <<
1029 isElastic = true; <<
1030 return new OmegaN <<
1031 } <<
1032 } <<
1033 } else if ((particle1->isNucleon() && par <<
1034 //// KN <<
1035 const G4double elasticCX = CrossSecti <<
1036 const G4double quasielasticCX = Cross <<
1037 const G4double NKToNKpiCX = CrossSect <<
1038 const G4double NKToNK2piCX = CrossSec <<
1039 const G4double totCX=CrossSections::t <<
1040 // assert(std::fabs(totCX-elasticCX-quasielas <<
1041 <<
1042 const G4double rChannel=Random::shoot <<
1043 if(elasticCX > rChannel){ <<
1044 // Elastic KN channel is chosen <<
1045 isElastic = true; <<
1046 INCL_DEBUG("KN interaction: elast <<
1047 return new NKElasticChannel(parti <<
1048 } else if(elasticCX + quasielasticCX <<
1049 // Quasi-elastic KN channel is chosen <<
1050 isElastic = false; // true ?? <<
1051 INCL_DEBUG("KN interaction: quasi <<
1052 return new NKToNKChannel(particle <<
1053 } else if(elasticCX + quasielasticCX <<
1054 // KN -> NKpi channel is chosen <<
1055 isElastic = false; <<
1056 INCL_DEBUG("KN interaction: NKpi <<
1057 return new NKToNKpiChannel(partic <<
1058 } else if(elasticCX + quasielasticCX <<
1059 // KN -> NK2pi channel is chosen <<
1060 isElastic = false; <<
1061 INCL_DEBUG("KN interaction: NK2pi <<
1062 return new NKToNK2piChannel(parti <<
1063 } else { <<
1064 INCL_WARN("inconsistency within t <<
1065 if(NKToNK2piCX>0.) { <<
1066 INCL_WARN("Returning a NKToNK <<
1067 isElastic = false; <<
1068 return new NKToNK2piChannel(p <<
1069 } else if(NKToNKpiCX>0.) { <<
1070 INCL_WARN("Returning a NKToNK <<
1071 isElastic = false; <<
1072 return new NKToNKpiChannel(pa <<
1073 } else if(quasielasticCX>0.) { <<
1074 INCL_WARN("Returning a quasi- <<
1075 isElastic = false; // true ?? <<
1076 return new NKToNKChannel(part <<
1077 } else { <<
1078 INCL_WARN("Returning an elast <<
1079 isElastic = true; <<
1080 return new NKElasticChannel(p <<
1081 } <<
1082 } <<
1083 } else if ((particle1->isNucleon() && par <<
1084 //// KbN <<
1085 const G4double elasticCX = CrossSecti <<
1086 const G4double quasielasticCX = Cross <<
1087 const G4double NKbToNKbpiCX = CrossSe <<
1088 const G4double NKbToNKb2piCX = CrossS <<
1089 const G4double NKbToLpiCX = CrossSect <<
1090 const G4double NKbToL2piCX = CrossSec <<
1091 const G4double NKbToSpiCX = CrossSect <<
1092 const G4double NKbToS2piCX = CrossSec <<
1093 const G4double totCX=CrossSections::t <<
1094 // assert(std::fabs(totCX-elasticCX-quasielas <<
1095 <<
1096 const G4double rChannel=Random::shoot <<
1097 if(elasticCX > rChannel){ <<
1098 // Elastic KbN channel is chosen <<
1099 isElastic = true; <<
1100 INCL_DEBUG("KbN interaction: elas <<
1101 return new NKbElasticChannel(part <<
1102 } else if(elasticCX + quasielasticCX <<
1103 // Quasi-elastic KbN channel is chosen <<
1104 isElastic = false; // true ?? <<
1105 INCL_DEBUG("KbN interaction: quas <<
1106 return new NKbToNKbChannel(partic <<
1107 } else if(elasticCX + quasielasticCX <<
1108 // KbN -> NKbpi channel is chosen <<
1109 isElastic = false; <<
1110 INCL_DEBUG("KbN interaction: NKbp <<
1111 return new NKbToNKbpiChannel(part <<
1112 } else if(elasticCX + quasielasticCX <<
1113 // KbN -> NKb2pi channel is chosen <<
1114 isElastic = false; <<
1115 INCL_DEBUG("KbN interaction: NKb2 <<
1116 return new NKbToNKb2piChannel(par <<
1117 } else if(elasticCX + quasielasticCX <<
1118 // KbN -> Lpi channel is chosen <<
1119 isElastic = false; <<
1120 INCL_DEBUG("KbN interaction: Lpi <<
1121 return new NKbToLpiChannel(partic <<
1122 } else if(elasticCX + quasielasticCX <<
1123 // KbN -> L2pi channel is chosen <<
1124 isElastic = false; <<
1125 INCL_DEBUG("KbN interaction: L2pi <<
1126 return new NKbToL2piChannel(parti <<
1127 } else if(elasticCX + quasielasticCX <<
1128 // KbN -> Spi channel is chosen <<
1129 isElastic = false; <<
1130 INCL_DEBUG("KbN interaction: Spi <<
1131 return new NKbToSpiChannel(partic <<
1132 } else if(elasticCX + quasielasticCX <<
1133 // KbN -> S2pi channel is chosen <<
1134 isElastic = false; <<
1135 INCL_DEBUG("KbN interaction: S2pi <<
1136 return new NKbToS2piChannel(parti <<
1137 } else { <<
1138 INCL_WARN("inconsistency within t <<
1139 if(NKbToS2piCX>0.) { <<
1140 INCL_WARN("Returning a NKbToS <<
1141 isElastic = false; <<
1142 return new NKbToS2piChannel(p <<
1143 } else if(NKbToSpiCX>0.) { <<
1144 INCL_WARN("Returning a NKbToS <<
1145 isElastic = false; <<
1146 return new NKbToSpiChannel(pa <<
1147 } else if(NKbToL2piCX>0.) { <<
1148 INCL_WARN("Returning a NKbToL <<
1149 isElastic = false; <<
1150 return new NKbToL2piChannel(p <<
1151 } else if(NKbToLpiCX>0.) { <<
1152 INCL_WARN("Returning a NKbToL <<
1153 isElastic = false; <<
1154 return new NKbToLpiChannel(pa <<
1155 } else if(NKbToNKb2piCX>0.) { <<
1156 INCL_WARN("Returning a NKbToN <<
1157 isElastic = false; <<
1158 return new NKbToNKb2piChannel <<
1159 } else if(NKbToNKbpiCX>0.) { <<
1160 INCL_WARN("Returning a NKbToN <<
1161 isElastic = false; <<
1162 return new NKbToNKbpiChannel( <<
1163 } else if(quasielasticCX>0.) { <<
1164 INCL_WARN("Returning a quasi- <<
1165 isElastic = false; // true ?? <<
1166 return new NKbToNKbChannel(pa <<
1167 } else { <<
1168 INCL_WARN("Returning an elast <<
1169 isElastic = true; <<
1170 return new NKbElasticChannel( <<
1171 } <<
1172 } <<
1173 } else if ((particle1->isNucleon() && par <<
1174 //// NLambda <<
1175 const G4double elasticCX = CrossSecti <<
1176 const G4double NLToNSCX = CrossSectio <<
1177 const G4double totCX=CrossSections::t <<
1178 // assert(std::fabs(totCX-elasticCX-NLToNSCX) <<
1179 <<
1180 const G4double rChannel=Random::shoot <<
1181 if(elasticCX > rChannel){ <<
1182 // Elastic NLambda channel is chosen <<
1183 isElastic = true; <<
1184 INCL_DEBUG("NLambda interaction: <<
1185 return new NYElasticChannel(parti <<
1186 } else if(elasticCX + NLToNSCX > rCha <<
1187 // Quasi-elastic NLambda channel is chosen <<
1188 isElastic = false; // true ?? <<
1189 INCL_DEBUG("NLambda interaction: <<
1190 return new NLToNSChannel(particle <<
1191 } else { <<
1192 INCL_WARN("inconsistency within t <<
1193 if(NLToNSCX>0.) { <<
1194 INCL_WARN("Returning a quasi- <<
1195 isElastic = false; // true ?? <<
1196 return new NLToNSChannel(part <<
1197 } else { <<
1198 INCL_WARN("Returning an elast <<
1199 isElastic = true; <<
1200 return new NYElasticChannel(p <<
1201 } <<
1202 } <<
1203 } else if ((particle1->isNucleon() && par <<
1204 //// NSigma <<
1205 const G4double elasticCX = CrossSecti <<
1206 const G4double NSToNLCX = CrossSectio <<
1207 const G4double NSToNSCX = CrossSectio <<
1208 const G4double totCX=CrossSections::t <<
1209 // assert(std::fabs(totCX-elasticCX-NSToNLCX- <<
1210 <<
1211 const G4double rChannel=Random::shoot <<
1212 if(elasticCX > rChannel){ <<
1213 // Elastic NSigma channel is chosen <<
1214 isElastic = true; <<
1215 INCL_DEBUG("NSigma interaction: e <<
1216 return new NYElasticChannel(parti <<
1217 } else if(elasticCX + NSToNLCX > rCha <<
1218 // NSigma -> NLambda channel is chosen <<
1219 isElastic = false; // true ?? <<
1220 INCL_DEBUG("NSigma interaction: N <<
1221 return new NSToNLChannel(particle <<
1222 } else if(elasticCX + NSToNLCX + NSTo <<
1223 // NSigma -> NSigma quasi-elastic channel is <<
1224 isElastic = false; // true ?? <<
1225 INCL_DEBUG("NSigma interaction: N <<
1226 return new NSToNSChannel(particle <<
1227 } else { <<
1228 INCL_WARN("inconsistency within t <<
1229 if(NSToNSCX>0.) { <<
1230 INCL_WARN("Returning a quasi- <<
1231 isElastic = false; // true ?? <<
1232 return new NSToNSChannel(part <<
1233 } else if(NSToNLCX>0.) { <<
1234 INCL_WARN("Returning a NLambd <<
1235 isElastic = false; // true ?? <<
1236 return new NSToNLChannel(part <<
1237 } else { <<
1238 INCL_WARN("Returning an elast <<
1239 isElastic = true; <<
1240 return new NYElasticChannel(p <<
1241 } <<
1242 } <<
1243 } else if ((particle1->isNucleon() && par <<
1244 //// NNbar <<
1245 const G4double totCX = CrossSections: <<
1246 const G4double NNbElasticCX = CrossSe <<
1247 const G4double NNbCEXCX = CrossSectio <<
1248 const G4double NNbToLLbCX = CrossSect <<
1249 const G4double NNbToNNbpiCX = CrossSe <<
1250 const G4double NNbToNNb2piCX = CrossS <<
1251 const G4double NNbToNNb3piCX = CrossS <<
1252 const G4double AnnihilationCX = Cross <<
1253 <<
1254 // assert(std::fabs(totCX-NNbElasticCX-NNbCEX <<
1255 <<
1256 const G4double rChannel=Random::shoot <<
1257 if (NNbElasticCX > rChannel) { <<
1258 // NNbar (elastic) channel is cho <<
1259 isElastic = true; <<
1260 //INCL_WARN("NNbar interaction: N <<
1261 return new NNbarElasticChannel(pa <<
1262 } else if (NNbElasticCX + NNbCEXCX > <<
1263 // NNbar (CEX) channel is chosen <<
1264 isElastic = false; // may be char <<
1265 //INCL_WARN("NNbar interaction: N <<
1266 return new NNbarCEXChannel(partic <<
1267 } else if (NNbElasticCX + NNbCEXCX + <<
1268 // NNbarToLLbar channel is chosen <<
1269 isElastic = false; // may be char <<
1270 //INCL_WARN("NNbar interaction: N <<
1271 return new NNbarToLLbarChannel(pa <<
1272 } else if (NNbElasticCX + NNbCEXCX + <<
1273 // NNbar to NNbar pi channel is c <<
1274 isElastic = false; <<
1275 //INCL_WARN("NNbar interaction: N <<
1276 return new NNbarToNNbarpiChannel( <<
1277 } else if (NNbElasticCX + NNbCEXCX + <<
1278 // NNbar to NNbar 2pi channel is <<
1279 isElastic = false; <<
1280 //INCL_WARN("NNbar interaction: N <<
1281 return new NNbarToNNbar2piChannel <<
1282 } else if (NNbElasticCX + NNbCEXCX + <<
1283 // NNbar to NNbar 3pi channel is <<
1284 isElastic = false; <<
1285 //INCL_WARN("NNbar interaction: N <<
1286 return new NNbarToNNbar3piChannel <<
1287 } else if (NNbElasticCX + NNbCEXCX + <<
1288 // NNbar annihilation channel is <<
1289 isElastic = false; <<
1290 AnnihilationType atype; <<
1291 if((particle1->getType()==antiPro <<
1292 atype = PTypeInFlight; <<
1293 } <<
1294 else if((particle1->getType()==an <<
1295 atype = NTypeInFlight; <<
1296 } <<
1297 else if((particle1->getType()==an <<
1298 atype = NbarPTypeInFlight; <<
1299 } <<
1300 else if((particle1->getType()==an <<
1301 atype = NbarNTypeInFlight; <<
1302 } <<
1303 else{ <<
1304 atype = Def; <<
1305 INCL_ERROR("Annihilation type p <<
1306 } <<
1307 theNucleus->setAType(atype); <<
1308 return new NNbarToAnnihilationCha <<
1309 } else { <<
1310 INCL_WARN("Inconsistency within <<
1311 if (NNbToNNb3piCX > 0.0) { <<
1312 INCL_WARN("Returning an NNb <<
1313 isElastic = false; <<
1314 return new NNbarToNNbar3piC <<
1315 } else if (NNbToNNb2piCX > 0.0) <<
1316 INCL_WARN("Returning an NNb <<
1317 isElastic = false; <<
1318 return new NNbarToNNbar2piC <<
1319 } else if (NNbToNNbpiCX > 0.0) <<
1320 INCL_WARN("Returning an NNb <<
1321 isElastic = false; <<
1322 return new NNbarToNNbarpiCh <<
1323 } else if (AnnihilationCX > 0.0 <<
1324 INCL_WARN("Returning an NNb <<
1325 isElastic = false; <<
1326 AnnihilationType atype; <<
1327 if((particle1->getType()==a <<
1328 atype = PTypeInFlight; <<
1329 } <<
1330 else if((particle1->getType <<
1331 atype = NTypeInFlight; <<
1332 } <<
1333 else if((particle1->getType <<
1334 atype = NbarPTypeInFlight <<
1335 } <<
1336 else if((particle1->getType <<
1337 atype = NbarNTypeInFlight <<
1338 } <<
1339 else{ <<
1340 atype = Def; <<
1341 INCL_ERROR("Annihilation <<
1342 } <<
1343 theNucleus->setAType(atype) <<
1344 return new NNbarToAnnihilat <<
1345 } else if (NNbCEXCX > 0.0) { <<
1346 INCL_WARN("Returning an NNb <<
1347 isElastic = false; <<
1348 return new NNbarCEXChannel( <<
1349 } else if (NNbToLLbCX > 0.0) { <<
1350 INCL_WARN("Returning an NNb <<
1351 isElastic = false; <<
1352 return new NNbarToLLbarChan <<
1353 } else { <<
1354 INCL_WARN("Elastic NNbar ch <<
1355 isElastic = true; <<
1356 return new NNbarElasticChan <<
1357 } <<
1358 } <<
1359 } <<
1360 <<
1361 else { <<
1362 INCL_DEBUG("BinaryCollisionAvatar can o <<
1363 << '\n' <<
1364 << particle1->print() <<
1365 << '\n' <<
1366 << particle2->print() <<
1367 << '\n'); <<
1368 InteractionAvatar::restoreParticles(); 176 InteractionAvatar::restoreParticles();
1369 return NULL; 177 return NULL;
1370 } 178 }
1371 } 179 }
1372 180
1373 void BinaryCollisionAvatar::preInteraction( 181 void BinaryCollisionAvatar::preInteraction() {
1374 isParticle1Spectator = particle1->isTarge <<
1375 isParticle2Spectator = particle2->isTarge <<
1376 InteractionAvatar::preInteraction(); 182 InteractionAvatar::preInteraction();
1377 } 183 }
1378 184
1379 void BinaryCollisionAvatar::postInteraction << 185 FinalState *BinaryCollisionAvatar::postInteraction(FinalState *fs) {
1380 // Call the postInteraction method of the 186 // Call the postInteraction method of the parent class
1381 // (provides Pauli blocking and enforces 187 // (provides Pauli blocking and enforces energy conservation)
1382 InteractionAvatar::postInteraction(fs); << 188 fs = InteractionAvatar::postInteraction(fs);
1383 189
1384 switch(fs->getValidity()) { 190 switch(fs->getValidity()) {
1385 case PauliBlockedFS: 191 case PauliBlockedFS:
1386 theNucleus->getStore()->getBook().inc << 192 theNucleus->getStore()->getBook()->incrementBlockedCollisions();
1387 break; 193 break;
1388 case NoEnergyConservationFS: 194 case NoEnergyConservationFS:
1389 case ParticleBelowFermiFS: 195 case ParticleBelowFermiFS:
1390 case ParticleBelowZeroFS: 196 case ParticleBelowZeroFS:
1391 break; 197 break;
1392 case ValidFS: 198 case ValidFS:
1393 Book &theBook = theNucleus->getStore( << 199 theNucleus->getStore()->getBook()->incrementAcceptedCollisions();
1394 theBook.incrementAcceptedCollisions() << 200 if(theNucleus->getStore()->getBook()->getAcceptedCollisions() == 1) {
1395 << 201 G4double t = theNucleus->getStore()->getBook()->getCurrentTime();
1396 if(theBook.getAcceptedCollisions() == << 202 theNucleus->getStore()->getBook()->setFirstCollisionTime(t);
1397 // Store time and cross section of << 203 theNucleus->getStore()->getBook()->setFirstCollisionXSec(oldXSec);
1398 G4double t = theBook.getCurrentTime <<
1399 theBook.setFirstCollisionTime(t); <<
1400 theBook.setFirstCollisionXSec(oldXS <<
1401 // Increase the number of Kaon by 1 <<
1402 if(isStrangeProduction) theNucleus- <<
1403 // Store position and momentum of t <<
1404 // collision <<
1405 if((isParticle1Spectator && isParti <<
1406 INCL_ERROR("First collision must <<
1407 } <<
1408 if(isParticle1Spectator) { <<
1409 theBook.setFirstCollisionSpectato <<
1410 theBook.setFirstCollisionSpectato <<
1411 } else { <<
1412 theBook.setFirstCollisionSpectato <<
1413 theBook.setFirstCollisionSpectato <<
1414 } <<
1415 <<
1416 // Store the elasticity of the firs <<
1417 theBook.setFirstCollisionIsElastic( <<
1418 } 204 }
1419 } 205 }
1420 return; << 206 return fs;
1421 } 207 }
1422 208
1423 std::string BinaryCollisionAvatar::dump() c 209 std::string BinaryCollisionAvatar::dump() const {
1424 std::stringstream ss; 210 std::stringstream ss;
1425 ss << "(avatar " << theTime <<" 'nn-colli << 211 ss << "(avatar " << theTime <<" 'nn-collision" << std::endl
1426 << "(list " << '\n' << 212 << "(list " << std::endl
1427 << particle1->dump() 213 << particle1->dump()
1428 << particle2->dump() 214 << particle2->dump()
1429 << "))" << '\n'; << 215 << "))" << std::endl;
1430 return ss.str(); 216 return ss.str();
1431 } 217 }
1432 218
1433 } 219 }
1434 220