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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 // Alain Boudard, CEA-Saclay, France
28 // Joseph Cugnon, University of Liege, Belgium 28 // Joseph Cugnon, University of Liege, Belgium
29 // Jean-Christophe David, CEA-Saclay, France 29 // Jean-Christophe David, CEA-Saclay, France
30 // Pekka Kaitaniemi, CEA-Saclay, France, and H 30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
31 // Sylvie Leray, CEA-Saclay, France 31 // Sylvie Leray, CEA-Saclay, France
32 // Davide Mancusi, CEA-Saclay, France 32 // Davide Mancusi, CEA-Saclay, France
33 // 33 //
34 #define INCLXX_IN_GEANT4_MODE 1 34 #define INCLXX_IN_GEANT4_MODE 1
35 35
36 #include "globals.hh" 36 #include "globals.hh"
37 37
38 /* 38 /*
39 * StandardPropagationModel.cpp 39 * StandardPropagationModel.cpp
40 * 40 *
41 * \date 4 juin 2009 41 * \date 4 juin 2009
42 * \author Pekka Kaitaniemi 42 * \author Pekka Kaitaniemi
43 */ 43 */
44 44
45 #include "G4INCLStandardPropagationModel.hh" 45 #include "G4INCLStandardPropagationModel.hh"
46 #include "G4INCLPbarAtrestEntryChannel.hh" <<
47 #include "G4INCLSurfaceAvatar.hh" 46 #include "G4INCLSurfaceAvatar.hh"
48 #include "G4INCLBinaryCollisionAvatar.hh" 47 #include "G4INCLBinaryCollisionAvatar.hh"
49 #include "G4INCLDecayAvatar.hh" 48 #include "G4INCLDecayAvatar.hh"
50 #include "G4INCLCrossSections.hh" 49 #include "G4INCLCrossSections.hh"
51 #include "G4INCLRandom.hh" 50 #include "G4INCLRandom.hh"
52 #include <iostream> 51 #include <iostream>
53 #include <algorithm> 52 #include <algorithm>
54 #include "G4INCLLogger.hh" 53 #include "G4INCLLogger.hh"
55 #include "G4INCLGlobals.hh" 54 #include "G4INCLGlobals.hh"
56 #include "G4INCLKinematicsUtils.hh" 55 #include "G4INCLKinematicsUtils.hh"
57 #include "G4INCLCoulombDistortion.hh" 56 #include "G4INCLCoulombDistortion.hh"
58 #include "G4INCLDeltaDecayChannel.hh" 57 #include "G4INCLDeltaDecayChannel.hh"
59 #include "G4INCLSigmaZeroDecayChannel.hh" 58 #include "G4INCLSigmaZeroDecayChannel.hh"
60 #include "G4INCLPionResonanceDecayChannel.hh" 59 #include "G4INCLPionResonanceDecayChannel.hh"
61 #include "G4INCLParticleEntryAvatar.hh" 60 #include "G4INCLParticleEntryAvatar.hh"
62 #include "G4INCLIntersection.hh" 61 #include "G4INCLIntersection.hh"
63 #include <vector> <<
64 62
65 namespace G4INCL { 63 namespace G4INCL {
66 64
67 StandardPropagationModel::StandardPropagat 65 StandardPropagationModel::StandardPropagationModel(LocalEnergyType localEnergyType, LocalEnergyType localEnergyDeltaType, const G4double hTime)
68 :theNucleus(0), maximumTime(70.0), curre 66 :theNucleus(0), maximumTime(70.0), currentTime(0.0),
69 hadronizationTime(hTime), 67 hadronizationTime(hTime),
70 firstAvatar(true), 68 firstAvatar(true),
71 theLocalEnergyType(localEnergyType), 69 theLocalEnergyType(localEnergyType),
72 theLocalEnergyDeltaType(localEnergyDelta 70 theLocalEnergyDeltaType(localEnergyDeltaType)
73 { 71 {
74 } 72 }
75 73
76 StandardPropagationModel::~StandardPropaga 74 StandardPropagationModel::~StandardPropagationModel()
77 { 75 {
78 delete theNucleus; 76 delete theNucleus;
79 } 77 }
80 78
81 G4INCL::Nucleus* StandardPropagationModel: 79 G4INCL::Nucleus* StandardPropagationModel::getNucleus()
82 { 80 {
83 return theNucleus; 81 return theNucleus;
84 } 82 }
85 83
86 //D <<
87 <<
88 G4double StandardPropagationModel::shoot(P 84 G4double StandardPropagationModel::shoot(ParticleSpecies const &projectileSpecies, const G4double kineticEnergy, const G4double impactParameter, const G4double phi) {
89 if(projectileSpecies.theType==Composite) << 85 if(projectileSpecies.theType==Composite)
90 return shootComposite(projectileSpecie 86 return shootComposite(projectileSpecies, kineticEnergy, impactParameter, phi);
91 } << 87 else
92 else if(projectileSpecies.theType==antiP <<
93 return shootAtrest(projectileSpecies.t <<
94 } <<
95 else{ <<
96 return shootParticle(projectileSpecies 88 return shootParticle(projectileSpecies.theType, kineticEnergy, impactParameter, phi);
97 } <<
98 } 89 }
99 90
100 //D <<
101 <<
102 G4double StandardPropagationModel::shootAt <<
103 theNucleus->setParticleNucleusCollision( <<
104 currentTime = 0.0; <<
105 <<
106 // Create final state particles <<
107 const G4double projectileMass = Particle <<
108 G4double energy = kineticEnergy + projec <<
109 G4double momentumZ = std::sqrt(energy*en <<
110 ThreeVector momentum(0.0, 0.0, momentumZ <<
111 Particle *pb = new G4INCL::Particle(t, e <<
112 PbarAtrestEntryChannel *obj = new PbarAt <<
113 ParticleList fslist = obj->makeMesonStar <<
114 const G4bool isProton = obj->ProtonIsThe <<
115 delete pb; <<
116 <<
117 //set Stopping time according to highest <<
118 G4double temfin; <<
119 G4double TLab; <<
120 std::vector<G4double> energies; <<
121 std::vector<G4double> projections; <<
122 ThreeVector ab, cd; <<
123 <<
124 for(ParticleIter pit = fslist.begin(), e <<
125 energies.push_back((*pit)->getKineticE <<
126 ab = (*pit)->boostVector(); <<
127 cd = (*pit)->getPosition(); <<
128 projections.push_back(ab.dot(cd)); //p <<
129 }// make vector of energies <<
130 <<
131 temfin = 30.18 * std::pow(theNucleus->ge <<
132 TLab = *max_element(energies.begin(), en <<
133 <<
134 // energy-dependent stopping time above <<
135 if(TLab>2000.) <<
136 temfin *= (5.8E4-TLab)/5.6E4; <<
137 <<
138 maximumTime = temfin; <<
139 <<
140 // If the incoming particle is slow, use <<
141 const G4double rMax = theNucleus->getUni <<
142 const G4double distance = 2.*rMax; <<
143 const G4double maxMesonVelocityProjectio <<
144 const G4double traversalTime = distance <<
145 if(maximumTime < traversalTime) <<
146 maximumTime = traversalTime; <<
147 INCL_DEBUG("Cascade stopping time is " < <<
148 <<
149 <<
150 // Fill in the relevant kinematic variab <<
151 theNucleus->setIncomingAngularMomentum(G <<
152 theNucleus->setIncomingMomentum(G4INCL:: <<
153 if(isProton){ <<
154 theNucleus->setInitialEnergy(pb->getMa <<
155 + ParticleTable::getTableMass(theNuc <<
156 } <<
157 else{ <<
158 theNucleus->setInitialEnergy(pb->getMa <<
159 + ParticleTable::getTableMass(theNuc <<
160 } <<
161 //kinetic energy excluded from the balan <<
162 <<
163 for(ParticleIter p = fslist.begin(), e = <<
164 (*p)->makeProjectileSpectator(); <<
165 } <<
166 <<
167 generateAllAvatars(); <<
168 firstAvatar = false; <<
169 <<
170 // Get the entry avatars for mesons <<
171 IAvatarList theAvatarList = obj->bringMe <<
172 delete obj; <<
173 theNucleus->getStore()->addParticleEntry <<
174 INCL_DEBUG("Avatars added" << '\n'); <<
175 <<
176 return 99.; <<
177 } <<
178 <<
179 //D <<
180 <<
181 G4double StandardPropagationModel::shootPa 91 G4double StandardPropagationModel::shootParticle(ParticleType const type, const G4double kineticEnergy, const G4double impactParameter, const G4double phi) {
182 theNucleus->setParticleNucleusCollision( 92 theNucleus->setParticleNucleusCollision();
183 currentTime = 0.0; 93 currentTime = 0.0;
184 94
185 // Create the projectile particle 95 // Create the projectile particle
186 const G4double projectileMass = Particle 96 const G4double projectileMass = ParticleTable::getTableParticleMass(type);
187 G4double energy = kineticEnergy + projec 97 G4double energy = kineticEnergy + projectileMass;
188 G4double momentumZ = std::sqrt(energy*en 98 G4double momentumZ = std::sqrt(energy*energy - projectileMass*projectileMass);
189 ThreeVector momentum(0.0, 0.0, momentumZ 99 ThreeVector momentum(0.0, 0.0, momentumZ);
190 Particle *p= new G4INCL::Particle(type, 100 Particle *p= new G4INCL::Particle(type, energy, momentum, ThreeVector());
191 101
192 G4double temfin; 102 G4double temfin;
193 G4double TLab; 103 G4double TLab;
194 if( p->isMeson()) { 104 if( p->isMeson()) {
195 temfin = 30.18 * std::pow(theNucleus-> 105 temfin = 30.18 * std::pow(theNucleus->getA(), 0.17);
196 TLab = p->getKineticEnergy(); 106 TLab = p->getKineticEnergy();
197 } else { 107 } else {
198 temfin = 29.8 * std::pow(theNucleus->g 108 temfin = 29.8 * std::pow(theNucleus->getA(), 0.16);
199 TLab = p->getKineticEnergy()/p->getA() 109 TLab = p->getKineticEnergy()/p->getA();
200 } 110 }
201 111
202 // energy-dependent stopping time above 112 // energy-dependent stopping time above 2 AGeV
203 if(TLab>2000.) 113 if(TLab>2000.)
204 temfin *= (5.8E4-TLab)/5.6E4; 114 temfin *= (5.8E4-TLab)/5.6E4;
205 115
206 maximumTime = temfin; 116 maximumTime = temfin;
207 117
208 // If the incoming particle is slow, use 118 // If the incoming particle is slow, use a larger stopping time
209 const G4double rMax = theNucleus->getUni 119 const G4double rMax = theNucleus->getUniverseRadius();
210 const G4double distance = 2.*rMax; 120 const G4double distance = 2.*rMax;
211 const G4double projectileVelocity = p->b 121 const G4double projectileVelocity = p->boostVector().mag();
212 const G4double traversalTime = distance 122 const G4double traversalTime = distance / projectileVelocity;
213 if(maximumTime < traversalTime) 123 if(maximumTime < traversalTime)
214 maximumTime = traversalTime; 124 maximumTime = traversalTime;
215 INCL_DEBUG("Cascade stopping time is " < 125 INCL_DEBUG("Cascade stopping time is " << maximumTime << '\n');
216 126
217 // If Coulomb is activated, do not proce 127 // If Coulomb is activated, do not process events with impact
218 // parameter larger than the maximum imp 128 // parameter larger than the maximum impact parameter, taking into
219 // account Coulomb distortion. 129 // account Coulomb distortion.
220 if(impactParameter>CoulombDistortion::ma 130 if(impactParameter>CoulombDistortion::maxImpactParameter(p->getSpecies(), kineticEnergy, theNucleus)) {
221 INCL_DEBUG("impactParameter>CoulombDis 131 INCL_DEBUG("impactParameter>CoulombDistortion::maxImpactParameter" << '\n');
222 delete p; 132 delete p;
223 return -1.; 133 return -1.;
224 } 134 }
225 135
226 ThreeVector position(impactParameter * s 136 ThreeVector position(impactParameter * std::cos(phi),
227 impactParameter * std::sin(phi), 137 impactParameter * std::sin(phi),
228 0.); 138 0.);
229 p->setPosition(position); 139 p->setPosition(position);
230 140
231 // Fill in the relevant kinematic variab 141 // Fill in the relevant kinematic variables
232 theNucleus->setIncomingAngularMomentum(p 142 theNucleus->setIncomingAngularMomentum(p->getAngularMomentum());
233 theNucleus->setIncomingMomentum(p->getMo 143 theNucleus->setIncomingMomentum(p->getMomentum());
234 theNucleus->setInitialEnergy(p->getEnerg 144 theNucleus->setInitialEnergy(p->getEnergy()
235 + ParticleTable::getTableMass(theNuc 145 + ParticleTable::getTableMass(theNucleus->getA(),theNucleus->getZ(),theNucleus->getS()));
236 146
237 // Reset the particle kinematics to the 147 // Reset the particle kinematics to the INCL values
238 p->setINCLMass(); 148 p->setINCLMass();
239 p->setEnergy(p->getMass() + kineticEnerg 149 p->setEnergy(p->getMass() + kineticEnergy);
240 p->adjustMomentumFromEnergy(); 150 p->adjustMomentumFromEnergy();
241 151
242 p->makeProjectileSpectator(); 152 p->makeProjectileSpectator();
243 generateAllAvatars(); 153 generateAllAvatars();
244 firstAvatar = false; 154 firstAvatar = false;
245 155
246 // Get the entry avatars from Coulomb an 156 // Get the entry avatars from Coulomb and put them in the Store
247 ParticleEntryAvatar *theEntryAvatar = Co 157 ParticleEntryAvatar *theEntryAvatar = CoulombDistortion::bringToSurface(p, theNucleus);
248 if(theEntryAvatar) { 158 if(theEntryAvatar) {
249 theNucleus->getStore()->addParticleEnt 159 theNucleus->getStore()->addParticleEntryAvatar(theEntryAvatar);
250 160
251 return p->getTransversePosition().mag( 161 return p->getTransversePosition().mag();
252 } else { 162 } else {
253 delete p; 163 delete p;
254 return -1.; 164 return -1.;
255 } 165 }
256 } 166 }
257 167
258 G4double StandardPropagationModel::shootCo 168 G4double StandardPropagationModel::shootComposite(ParticleSpecies const &species, const G4double kineticEnergy, const G4double impactParameter, const G4double phi) {
259 theNucleus->setNucleusNucleusCollision() 169 theNucleus->setNucleusNucleusCollision();
260 currentTime = 0.0; 170 currentTime = 0.0;
261 171
262 // Create the ProjectileRemnant object 172 // Create the ProjectileRemnant object
263 ProjectileRemnant *pr = new ProjectileRe 173 ProjectileRemnant *pr = new ProjectileRemnant(species, kineticEnergy);
264 174
265 // Same stopping time as for nucleon-nuc 175 // Same stopping time as for nucleon-nucleus
266 maximumTime = 29.8 * std::pow(theNucleus 176 maximumTime = 29.8 * std::pow(theNucleus->getA(), 0.16);
267 177
268 // If the incoming cluster is slow, use 178 // If the incoming cluster is slow, use a larger stopping time
269 const G4double rms = ParticleTable::getL 179 const G4double rms = ParticleTable::getLargestNuclearRadius(pr->getA(), pr->getZ());
270 const G4double rMax = theNucleus->getUni 180 const G4double rMax = theNucleus->getUniverseRadius();
271 const G4double distance = 2.*rMax + 2.72 181 const G4double distance = 2.*rMax + 2.725*rms;
272 const G4double projectileVelocity = pr-> 182 const G4double projectileVelocity = pr->boostVector().mag();
273 const G4double traversalTime = distance 183 const G4double traversalTime = distance / projectileVelocity;
274 if(maximumTime < traversalTime) 184 if(maximumTime < traversalTime)
275 maximumTime = traversalTime; 185 maximumTime = traversalTime;
276 INCL_DEBUG("Cascade stopping time is " < 186 INCL_DEBUG("Cascade stopping time is " << maximumTime << '\n');
277 187
278 // If Coulomb is activated, do not proce 188 // If Coulomb is activated, do not process events with impact
279 // parameter larger than the maximum imp 189 // parameter larger than the maximum impact parameter, taking into
280 // account Coulomb distortion. 190 // account Coulomb distortion.
281 if(impactParameter>CoulombDistortion::ma 191 if(impactParameter>CoulombDistortion::maxImpactParameter(pr,theNucleus)) {
282 INCL_DEBUG("impactParameter>CoulombDis 192 INCL_DEBUG("impactParameter>CoulombDistortion::maxImpactParameter" << '\n');
283 delete pr; 193 delete pr;
284 return -1.; 194 return -1.;
285 } 195 }
286 196
287 // Position the cluster at the right imp 197 // Position the cluster at the right impact parameter
288 ThreeVector position(impactParameter * s 198 ThreeVector position(impactParameter * std::cos(phi),
289 impactParameter * std::sin(phi), 199 impactParameter * std::sin(phi),
290 0.); 200 0.);
291 pr->setPosition(position); 201 pr->setPosition(position);
292 202
293 // Fill in the relevant kinematic variab 203 // Fill in the relevant kinematic variables
294 theNucleus->setIncomingAngularMomentum(p 204 theNucleus->setIncomingAngularMomentum(pr->getAngularMomentum());
295 theNucleus->setIncomingMomentum(pr->getM 205 theNucleus->setIncomingMomentum(pr->getMomentum());
296 theNucleus->setInitialEnergy(pr->getEner 206 theNucleus->setInitialEnergy(pr->getEnergy()
297 + ParticleTable::getTableMass(theNuc 207 + ParticleTable::getTableMass(theNucleus->getA(),theNucleus->getZ(),theNucleus->getS()));
298 208
299 generateAllAvatars(); 209 generateAllAvatars();
300 firstAvatar = false; 210 firstAvatar = false;
301 211
302 // Get the entry avatars from Coulomb 212 // Get the entry avatars from Coulomb
303 IAvatarList theAvatarList 213 IAvatarList theAvatarList
304 = CoulombDistortion::bringToSurface(pr 214 = CoulombDistortion::bringToSurface(pr, theNucleus);
305 215
306 if(theAvatarList.empty()) { 216 if(theAvatarList.empty()) {
307 INCL_DEBUG("No ParticleEntryAvatar fou 217 INCL_DEBUG("No ParticleEntryAvatar found, transparent event" << '\n');
308 delete pr; 218 delete pr;
309 return -1.; 219 return -1.;
310 } 220 }
311 221
312 /* Store the internal kinematics of the 222 /* Store the internal kinematics of the projectile remnant.
313 * 223 *
314 * Note that this is at variance with th 224 * Note that this is at variance with the Fortran version, which stores
315 * the initial kinematics of the particl 225 * the initial kinematics of the particles *after* putting the spectators
316 * on mass shell, but *before* removing 226 * on mass shell, but *before* removing the same energy from the
317 * participants. Due to the different co 227 * participants. Due to the different code flow, doing so in the C++
318 * version leads to wrong excitation ene 228 * version leads to wrong excitation energies for the forced compound
319 * nucleus. 229 * nucleus.
320 */ 230 */
321 pr->storeComponents(); 231 pr->storeComponents();
322 232
323 // Tell the Nucleus about the Projectile 233 // Tell the Nucleus about the ProjectileRemnant
324 theNucleus->setProjectileRemnant(pr); 234 theNucleus->setProjectileRemnant(pr);
325 235
326 // Register the ParticleEntryAvatars 236 // Register the ParticleEntryAvatars
327 theNucleus->getStore()->addParticleEntry 237 theNucleus->getStore()->addParticleEntryAvatars(theAvatarList);
328 238
329 return pr->getTransversePosition().mag() 239 return pr->getTransversePosition().mag();
330 } 240 }
331 241
332 G4double StandardPropagationModel::getStop 242 G4double StandardPropagationModel::getStoppingTime() {
333 return maximumTime; 243 return maximumTime;
334 } 244 }
335 245
336 void StandardPropagationModel::setStopping 246 void StandardPropagationModel::setStoppingTime(G4double time) {
337 // assert(time>0.0); 247 // assert(time>0.0);
338 maximumTime = time; 248 maximumTime = time;
339 } 249 }
340 250
341 G4double StandardPropagationModel::getCurr 251 G4double StandardPropagationModel::getCurrentTime() {
342 return currentTime; 252 return currentTime;
343 } 253 }
344 254
345 void StandardPropagationModel::setNucleus( 255 void StandardPropagationModel::setNucleus(G4INCL::Nucleus *nucleus)
346 { 256 {
347 theNucleus = nucleus; 257 theNucleus = nucleus;
348 } 258 }
349 259
350 void StandardPropagationModel::registerAva 260 void StandardPropagationModel::registerAvatar(G4INCL::IAvatar *anAvatar)
351 { 261 {
352 if(anAvatar) theNucleus->getStore()->add 262 if(anAvatar) theNucleus->getStore()->add(anAvatar);
353 } 263 }
354 264
355 IAvatar *StandardPropagationModel::generat 265 IAvatar *StandardPropagationModel::generateBinaryCollisionAvatar(Particle * const p1, Particle * const p2) {
356 // Is either particle a participant? 266 // Is either particle a participant?
357 if(!p1->isParticipant() && !p2->isPartic 267 if(!p1->isParticipant() && !p2->isParticipant() && p1->getParticipantType()==p2->getParticipantType()) return NULL;
358 268
359 // Is it a pi-resonance collision (we do 269 // Is it a pi-resonance collision (we don't treat them)?
360 if((p1->isResonance() && p2->isPion()) | 270 if((p1->isResonance() && p2->isPion()) || (p1->isPion() && p2->isResonance()))
361 return NULL; 271 return NULL;
362 272
363 // Is it a photon collision (we don't tr <<
364 if(p1->isPhoton() || p2->isPhoton()) <<
365 return NULL; <<
366 <<
367 // Will the avatar take place between no 273 // Will the avatar take place between now and the end of the cascade?
368 G4double minDistOfApproachSquared = 0.0; 274 G4double minDistOfApproachSquared = 0.0;
369 G4double t = getTime(p1, p2, &minDistOfA 275 G4double t = getTime(p1, p2, &minDistOfApproachSquared);
370 if(t>maximumTime || t<currentTime+hadron 276 if(t>maximumTime || t<currentTime+hadronizationTime) return NULL;
371 277
372 // Local energy. Jump through some hoops 278 // Local energy. Jump through some hoops to calculate the cross section
373 // at the collision point, and clean up 279 // at the collision point, and clean up after yourself afterwards.
374 G4bool hasLocalEnergy; 280 G4bool hasLocalEnergy;
375 if(p1->isPion() || p2->isPion()) 281 if(p1->isPion() || p2->isPion())
376 hasLocalEnergy = ((theLocalEnergyDelta 282 hasLocalEnergy = ((theLocalEnergyDeltaType == FirstCollisionLocalEnergy &&
377 theNucleus->getStore()->getBook( 283 theNucleus->getStore()->getBook().getAcceptedCollisions()==0) ||
378 theLocalEnergyDeltaType == AlwaysL 284 theLocalEnergyDeltaType == AlwaysLocalEnergy);
379 else 285 else
380 hasLocalEnergy = ((theLocalEnergyType 286 hasLocalEnergy = ((theLocalEnergyType == FirstCollisionLocalEnergy &&
381 theNucleus->getStore()->getBook( 287 theNucleus->getStore()->getBook().getAcceptedCollisions()==0) ||
382 theLocalEnergyType == AlwaysLocalE 288 theLocalEnergyType == AlwaysLocalEnergy);
383 const G4bool p1HasLocalEnergy = (hasLoca << 289 const G4bool p1HasLocalEnergy = (hasLocalEnergy && !p1->isMeson());
384 const G4bool p2HasLocalEnergy = (hasLoca << 290 const G4bool p2HasLocalEnergy = (hasLocalEnergy && !p2->isMeson());
385 291
386 if(p1HasLocalEnergy) { 292 if(p1HasLocalEnergy) {
387 backupParticle1 = *p1; 293 backupParticle1 = *p1;
388 p1->propagate(t - currentTime); 294 p1->propagate(t - currentTime);
389 if(p1->getPosition().mag() > theNucleu 295 if(p1->getPosition().mag() > theNucleus->getSurfaceRadius(p1)) {
390 *p1 = backupParticle1; 296 *p1 = backupParticle1;
391 return NULL; 297 return NULL;
392 } 298 }
393 KinematicsUtils::transformToLocalEnerg 299 KinematicsUtils::transformToLocalEnergyFrame(theNucleus, p1);
394 } << 300 }
395 if(p2HasLocalEnergy) { 301 if(p2HasLocalEnergy) {
396 backupParticle2 = *p2; 302 backupParticle2 = *p2;
397 p2->propagate(t - currentTime); 303 p2->propagate(t - currentTime);
398 if(p2->getPosition().mag() > theNucleu 304 if(p2->getPosition().mag() > theNucleus->getSurfaceRadius(p2)) {
399 *p2 = backupParticle2; 305 *p2 = backupParticle2;
400 if(p1HasLocalEnergy) { 306 if(p1HasLocalEnergy) {
401 *p1 = backupParticle1; 307 *p1 = backupParticle1;
402 } 308 }
403 return NULL; 309 return NULL;
404 } 310 }
405 KinematicsUtils::transformToLocalEnerg 311 KinematicsUtils::transformToLocalEnergyFrame(theNucleus, p2);
406 } 312 }
407 313
408 // Compute the total cross section 314 // Compute the total cross section
409 const G4double totalCrossSection = Cross 315 const G4double totalCrossSection = CrossSections::total(p1, p2);
410 const G4double squareTotalEnergyInCM = K 316 const G4double squareTotalEnergyInCM = KinematicsUtils::squareTotalEnergyInCM(p1,p2);
411 317
412 // Restore particles to their state befo 318 // Restore particles to their state before the local-energy tweak
413 if(p1HasLocalEnergy) { 319 if(p1HasLocalEnergy) {
414 *p1 = backupParticle1; 320 *p1 = backupParticle1;
415 } 321 }
416 if(p2HasLocalEnergy) { 322 if(p2HasLocalEnergy) {
417 *p2 = backupParticle2; 323 *p2 = backupParticle2;
418 } 324 }
419 325
420 // Is the CM energy > cutNN? (no cutNN o 326 // Is the CM energy > cutNN? (no cutNN on the first collision)
421 if(theNucleus->getStore()->getBook().get 327 if(theNucleus->getStore()->getBook().getAcceptedCollisions()>0
422 && p1->isNucleon() && p2->isNucleon( 328 && p1->isNucleon() && p2->isNucleon()
423 && squareTotalEnergyInCM < BinaryCol 329 && squareTotalEnergyInCM < BinaryCollisionAvatar::getCutNNSquared()) return NULL;
424 330
425 // Do the particles come close enough to 331 // Do the particles come close enough to each other?
426 if(Math::tenPi*minDistOfApproachSquared 332 if(Math::tenPi*minDistOfApproachSquared > totalCrossSection) return NULL;
427 333
428 // Bomb out if the two collision partner 334 // Bomb out if the two collision partners are the same particle
429 // assert(p1->getID() != p2->getID()); 335 // assert(p1->getID() != p2->getID());
430 336
431 // Return a new avatar, then! 337 // Return a new avatar, then!
432 return new G4INCL::BinaryCollisionAvatar 338 return new G4INCL::BinaryCollisionAvatar(t, totalCrossSection, theNucleus, p1, p2);
433 } 339 }
434 340
435 G4double StandardPropagationModel::getRefl 341 G4double StandardPropagationModel::getReflectionTime(G4INCL::Particle const * const aParticle) {
436 Intersection theIntersection( 342 Intersection theIntersection(
437 IntersectionFactory::getLaterTraject 343 IntersectionFactory::getLaterTrajectoryIntersection(
438 aParticle->getPosition(), 344 aParticle->getPosition(),
439 aParticle->getPropagationVelocity( 345 aParticle->getPropagationVelocity(),
440 theNucleus->getSurfaceRadius(aPart 346 theNucleus->getSurfaceRadius(aParticle)));
441 G4double time; 347 G4double time;
442 if(theIntersection.exists) { 348 if(theIntersection.exists) {
443 time = currentTime + theIntersection.t 349 time = currentTime + theIntersection.time;
444 } else { 350 } else {
445 INCL_ERROR("Imaginary reflection time 351 INCL_ERROR("Imaginary reflection time for particle: " << '\n'
446 << aParticle->print()); 352 << aParticle->print());
447 time = 10000.0; 353 time = 10000.0;
448 } 354 }
449 return time; 355 return time;
450 } 356 }
451 357
452 G4double StandardPropagationModel::getTime 358 G4double StandardPropagationModel::getTime(G4INCL::Particle const * const particleA,
453 G4INCL::Particle const * const 359 G4INCL::Particle const * const particleB, G4double *minDistOfApproach) const
454 { 360 {
455 G4double time; 361 G4double time;
456 G4INCL::ThreeVector t13 = particleA->get 362 G4INCL::ThreeVector t13 = particleA->getPropagationVelocity();
457 t13 -= particleB->getPropagationVelocity 363 t13 -= particleB->getPropagationVelocity();
458 G4INCL::ThreeVector distance = particleA 364 G4INCL::ThreeVector distance = particleA->getPosition();
459 distance -= particleB->getPosition(); 365 distance -= particleB->getPosition();
460 const G4double t7 = t13.dot(distance); 366 const G4double t7 = t13.dot(distance);
461 const G4double dt = t13.mag2(); 367 const G4double dt = t13.mag2();
462 if(dt <= 1.0e-10) { 368 if(dt <= 1.0e-10) {
463 (*minDistOfApproach) = 100000.0; 369 (*minDistOfApproach) = 100000.0;
464 return currentTime + 100000.0; 370 return currentTime + 100000.0;
465 } else { 371 } else {
466 time = -t7/dt; 372 time = -t7/dt;
467 } 373 }
468 (*minDistOfApproach) = distance.mag2() + 374 (*minDistOfApproach) = distance.mag2() + time * t7;
469 return currentTime + time; 375 return currentTime + time;
470 } 376 }
471 377
472 void StandardPropagationModel::generateUpd 378 void StandardPropagationModel::generateUpdatedCollisions(const ParticleList &updatedParticles, const ParticleList &particles) {
473 379
474 // Loop over all the updated particles 380 // Loop over all the updated particles
475 for(ParticleIter updated=updatedParticle 381 for(ParticleIter updated=updatedParticles.begin(), e=updatedParticles.end(); updated!=e; ++updated)
476 { 382 {
477 // Loop over all the particles 383 // Loop over all the particles
478 for(ParticleIter particle=particles.be 384 for(ParticleIter particle=particles.begin(), end=particles.end(); particle!=end; ++particle)
479 { 385 {
480 /* Consider the generation of a coll 386 /* Consider the generation of a collision avatar only if (*particle)
481 * is not one of the updated particl 387 * is not one of the updated particles.
482 * The criterion makes sure that you 388 * The criterion makes sure that you don't generate avatars between
483 * updated particles. */ 389 * updated particles. */
484 if(updatedParticles.contains(*partic 390 if(updatedParticles.contains(*particle)) continue;
485 391
486 registerAvatar(generateBinaryCollisi 392 registerAvatar(generateBinaryCollisionAvatar(*particle,*updated));
487 } 393 }
488 } 394 }
489 } 395 }
490 396
491 void StandardPropagationModel::generateCol 397 void StandardPropagationModel::generateCollisions(const ParticleList &particles) {
492 // Loop over all the particles 398 // Loop over all the particles
493 for(ParticleIter p1=particles.begin(), e 399 for(ParticleIter p1=particles.begin(), e=particles.end(); p1!=e; ++p1) {
494 // Loop over the rest of the particles 400 // Loop over the rest of the particles
495 for(ParticleIter p2 = p1 + 1; p2 != pa 401 for(ParticleIter p2 = p1 + 1; p2 != particles.end(); ++p2) {
496 registerAvatar(generateBinaryCollisi 402 registerAvatar(generateBinaryCollisionAvatar(*p1,*p2));
497 } 403 }
498 } 404 }
499 } 405 }
500 406
501 void StandardPropagationModel::generateCol 407 void StandardPropagationModel::generateCollisions(const ParticleList &particles, const ParticleList &except) {
502 408
503 const G4bool haveExcept = !except.empty( 409 const G4bool haveExcept = !except.empty();
504 410
505 // Loop over all the particles 411 // Loop over all the particles
506 for(ParticleIter p1=particles.begin(), e 412 for(ParticleIter p1=particles.begin(), e=particles.end(); p1!=e; ++p1)
507 { 413 {
508 // Loop over the rest of the particles 414 // Loop over the rest of the particles
509 ParticleIter p2 = p1; 415 ParticleIter p2 = p1;
510 for(++p2; p2 != particles.end(); ++p2) 416 for(++p2; p2 != particles.end(); ++p2)
511 { 417 {
512 // Skip the collision if both partic 418 // Skip the collision if both particles must be excluded
513 if(haveExcept && except.contains(*p1 419 if(haveExcept && except.contains(*p1) && except.contains(*p2)) continue;
514 420
515 registerAvatar(generateBinaryCollisi 421 registerAvatar(generateBinaryCollisionAvatar(*p1,*p2));
516 } 422 }
517 } 423 }
518 424
519 } 425 }
520 426
521 void StandardPropagationModel::updateAvata 427 void StandardPropagationModel::updateAvatars(const ParticleList &particles) {
522 428
523 for(ParticleIter iter=particles.begin(), 429 for(ParticleIter iter=particles.begin(), e=particles.end(); iter!=e; ++iter) {
524 G4double time = this->getReflectionTim 430 G4double time = this->getReflectionTime(*iter);
525 if(time <= maximumTime) registerAvatar 431 if(time <= maximumTime) registerAvatar(new SurfaceAvatar(*iter, time, theNucleus));
526 } 432 }
527 ParticleList const &p = theNucleus->getS 433 ParticleList const &p = theNucleus->getStore()->getParticles();
528 generateUpdatedCollisions(particles, p); 434 generateUpdatedCollisions(particles, p); // Predict collisions with spectators and participants
529 } 435 }
530 436
531 void StandardPropagationModel::generateAll 437 void StandardPropagationModel::generateAllAvatars() {
532 ParticleList const &particles = theNucle 438 ParticleList const &particles = theNucleus->getStore()->getParticles();
533 // assert(!particles.empty()); 439 // assert(!particles.empty());
534 G4double time; 440 G4double time;
535 for(ParticleIter i=particles.begin(), e= 441 for(ParticleIter i=particles.begin(), e=particles.end(); i!=e; ++i) {
536 time = this->getReflectionTime(*i); 442 time = this->getReflectionTime(*i);
537 if(time <= maximumTime) registerAvatar 443 if(time <= maximumTime) registerAvatar(new SurfaceAvatar(*i, time, theNucleus));
538 } 444 }
539 generateCollisions(particles); 445 generateCollisions(particles);
540 generateDecays(particles); 446 generateDecays(particles);
541 } 447 }
542 448
543 #ifdef INCL_REGENERATE_AVATARS 449 #ifdef INCL_REGENERATE_AVATARS
544 void StandardPropagationModel::generateAll 450 void StandardPropagationModel::generateAllAvatarsExceptUpdated(FinalState const * const fs) {
545 ParticleList const &particles = theNucle 451 ParticleList const &particles = theNucleus->getStore()->getParticles();
546 // assert(!particles.empty()); 452 // assert(!particles.empty());
547 for(ParticleIter i=particles.begin(), e= 453 for(ParticleIter i=particles.begin(), e=particles.end(); i!=e; ++i) {
548 G4double time = this->getReflectionTim 454 G4double time = this->getReflectionTime(*i);
549 if(time <= maximumTime) registerAvatar 455 if(time <= maximumTime) registerAvatar(new SurfaceAvatar(*i, time, theNucleus));
550 } 456 }
551 ParticleList except = fs->getModifiedPar 457 ParticleList except = fs->getModifiedParticles();
552 ParticleList const &entering = fs->getEn 458 ParticleList const &entering = fs->getEnteringParticles();
553 except.insert(except.end(), entering.beg 459 except.insert(except.end(), entering.begin(), entering.end());
554 generateCollisions(particles,except); 460 generateCollisions(particles,except);
555 generateDecays(particles); 461 generateDecays(particles);
556 } 462 }
557 #endif 463 #endif
558 464
559 void StandardPropagationModel::generateDec 465 void StandardPropagationModel::generateDecays(const ParticleList &particles) {
560 for(ParticleIter i=particles.begin(), e= 466 for(ParticleIter i=particles.begin(), e=particles.end(); i!=e; ++i) {
561 if((*i)->isDelta()) { 467 if((*i)->isDelta()) {
562 G4double decayTime = DeltaDecayCh 468 G4double decayTime = DeltaDecayChannel::computeDecayTime((*i)); // time in fm/c
563 G4double time = currentTime + decay 469 G4double time = currentTime + decayTime;
564 if(time <= maximumTime) { 470 if(time <= maximumTime) {
565 registerAvatar(new DecayAvatar((* 471 registerAvatar(new DecayAvatar((*i), time, theNucleus));
566 } 472 }
567 } 473 }
568 else if((*i)->getType() == SigmaZero) 474 else if((*i)->getType() == SigmaZero) {
569 G4double decayTime = SigmaZeroDecay 475 G4double decayTime = SigmaZeroDecayChannel::computeDecayTime((*i)); // time in fm/c
570 G4double time = currentTime + decay 476 G4double time = currentTime + decayTime;
571 if(time <= maximumTime) { 477 if(time <= maximumTime) {
572 registerAvatar(new DecayAvatar((* 478 registerAvatar(new DecayAvatar((*i), time, theNucleus));
573 } 479 }
574 } 480 }
575 if((*i)->isOmega()) { 481 if((*i)->isOmega()) {
576 G4double decayTimeOmega = PionResona 482 G4double decayTimeOmega = PionResonanceDecayChannel::computeDecayTime((*i));
577 G4double timeOmega = currentTime + d 483 G4double timeOmega = currentTime + decayTimeOmega;
578 if(timeOmega <= maximumTime) { 484 if(timeOmega <= maximumTime) {
579 registerAvatar(new DecayAvatar((*i 485 registerAvatar(new DecayAvatar((*i), timeOmega, theNucleus));
580 } 486 }
581 } 487 }
582 } 488 }
583 } 489 }
584 490
585 G4INCL::IAvatar* StandardPropagationModel: 491 G4INCL::IAvatar* StandardPropagationModel::propagate(FinalState const * const fs)
586 { 492 {
587 if(fs) { 493 if(fs) {
588 // We update only the information rela 494 // We update only the information related to particles that were updated
589 // by the previous avatar. 495 // by the previous avatar.
590 #ifdef INCL_REGENERATE_AVATARS 496 #ifdef INCL_REGENERATE_AVATARS
591 #warning "The INCL_REGENERATE_AVATARS code has 497 #warning "The INCL_REGENERATE_AVATARS code has not been tested in a while. Use it at your peril."
592 if(!fs->getModifiedParticles().empty() 498 if(!fs->getModifiedParticles().empty() || !fs->getEnteringParticles().empty() || !fs->getCreatedParticles().empty()) {
593 // Regenerates the entire avatar lis 499 // Regenerates the entire avatar list, skipping collisions between
594 // updated particles 500 // updated particles
595 theNucleus->getStore()->clearAvatars 501 theNucleus->getStore()->clearAvatars();
596 theNucleus->getStore()->initialisePa 502 theNucleus->getStore()->initialiseParticleAvatarConnections();
597 generateAllAvatarsExceptUpdated(fs); 503 generateAllAvatarsExceptUpdated(fs);
598 } 504 }
599 #else 505 #else
600 ParticleList const &updatedParticles = 506 ParticleList const &updatedParticles = fs->getModifiedParticles();
601 if(fs->getValidity()==PauliBlockedFS) 507 if(fs->getValidity()==PauliBlockedFS) {
602 // This final state might represents 508 // This final state might represents the outcome of a Pauli-blocked delta
603 // decay 509 // decay
604 // assert(updatedParticles.empty() || (updated 510 // assert(updatedParticles.empty() || (updatedParticles.size()==1 && updatedParticles.front()->isResonance()));
605 // assert(fs->getEnteringParticles().empty() & 511 // assert(fs->getEnteringParticles().empty() && fs->getCreatedParticles().empty() && fs->getOutgoingParticles().empty() && fs->getDestroyedParticles().empty());
606 generateDecays(updatedParticles); 512 generateDecays(updatedParticles);
607 } else { 513 } else {
608 ParticleList const &entering = fs->g 514 ParticleList const &entering = fs->getEnteringParticles();
609 generateDecays(updatedParticles); 515 generateDecays(updatedParticles);
610 generateDecays(entering); 516 generateDecays(entering);
611 517
612 ParticleList const &created = fs->ge 518 ParticleList const &created = fs->getCreatedParticles();
613 if(created.empty() && entering.empty 519 if(created.empty() && entering.empty())
614 updateAvatars(updatedParticles); 520 updateAvatars(updatedParticles);
615 else { 521 else {
616 ParticleList updatedParticlesCopy 522 ParticleList updatedParticlesCopy = updatedParticles;
617 updatedParticlesCopy.insert(update 523 updatedParticlesCopy.insert(updatedParticlesCopy.end(), entering.begin(), entering.end());
618 updatedParticlesCopy.insert(update 524 updatedParticlesCopy.insert(updatedParticlesCopy.end(), created.begin(), created.end());
619 updateAvatars(updatedParticlesCopy 525 updateAvatars(updatedParticlesCopy);
620 } 526 }
621 } 527 }
622 #endif 528 #endif
623 } 529 }
624 530
625 G4INCL::IAvatar *theAvatar = theNucleus- 531 G4INCL::IAvatar *theAvatar = theNucleus->getStore()->findSmallestTime();
626 if(theAvatar == 0) return 0; // Avatar l 532 if(theAvatar == 0) return 0; // Avatar list is empty
627 // theAvatar->dispose(); 533 // theAvatar->dispose();
628 534
629 if(theAvatar->getTime() < currentTime) { 535 if(theAvatar->getTime() < currentTime) {
630 INCL_ERROR("Avatar time = " << theAvat 536 INCL_ERROR("Avatar time = " << theAvatar->getTime() << ", currentTime = " << currentTime << '\n');
631 return 0; 537 return 0;
632 } else if(theAvatar->getTime() > current 538 } else if(theAvatar->getTime() > currentTime) {
633 theNucleus->getStore()->timeStep(theAv 539 theNucleus->getStore()->timeStep(theAvatar->getTime() - currentTime);
634 540
635 currentTime = theAvatar->getTime(); 541 currentTime = theAvatar->getTime();
636 theNucleus->getStore()->getBook().setC 542 theNucleus->getStore()->getBook().setCurrentTime(currentTime);
637 } 543 }
638 544
639 return theAvatar; 545 return theAvatar;
640 } 546 }
641 } 547 }
642 548