Geant4-11
G4INCLNucleus.cc
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25//
26// INCL++ intra-nuclear cascade model
27// Alain Boudard, CEA-Saclay, France
28// Joseph Cugnon, University of Liege, Belgium
29// Jean-Christophe David, CEA-Saclay, France
30// Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
31// Sylvie Leray, CEA-Saclay, France
32// Davide Mancusi, CEA-Saclay, France
33//
34#define INCLXX_IN_GEANT4_MODE 1
35
36#include "globals.hh"
37
38/*
39 * G4INCLNucleus.cc
40 *
41 * \date Jun 5, 2009
42 * \author Pekka Kaitaniemi
43 */
44
45#ifndef G4INCLNucleus_hh
46#define G4INCLNucleus_hh 1
47
48#include "G4INCLGlobals.hh"
49#include "G4INCLLogger.hh"
50#include "G4INCLParticle.hh"
51#include "G4INCLIAvatar.hh"
52#include "G4INCLNucleus.hh"
54#include "G4INCLDecayAvatar.hh"
56#include "G4INCLCluster.hh"
57#include "G4INCLClusterDecay.hh"
58#include "G4INCLDeJongSpin.hh"
61#include <iterator>
62#include <cstdlib>
63#include <sstream>
64// #include <cassert>
65
66namespace G4INCL {
67
68 Nucleus::Nucleus(G4int mass, G4int charge, G4int strangess, Config const * const conf, const G4double universeRadius)
69 : Cluster(charge,mass,strangess,true),
70 theInitialZ(charge), theInitialA(mass), theInitialS(strangess),
71 theNpInitial(0), theNnInitial(0),
72 theNpionplusInitial(0), theNpionminusInitial(0),
73 theNkaonplusInitial(0), theNkaonminusInitial(0),
74 initialInternalEnergy(0.),
75 incomingAngularMomentum(0.,0.,0.), incomingMomentum(0.,0.,0.),
76 initialCenterOfMass(0.,0.,0.),
77 remnant(true),
78 initialEnergy(0.),
79 tryCN(false),
80 theUniverseRadius(universeRadius),
81 isNucleusNucleus(false),
82 theProjectileRemnant(NULL),
83 theDensity(NULL),
84 thePotential(NULL)
85 {
86 PotentialType potentialType;
87 G4bool pionPotential;
88 if(conf) {
89 potentialType = conf->getPotentialType();
90 pionPotential = conf->getPionPotential();
91 } else { // By default we don't use energy dependent
92 // potential. This is convenient for some tests.
93 potentialType = IsospinPotential;
94 pionPotential = true;
95 }
96
97 thePotential = NuclearPotential::createPotential(potentialType, theA, theZ, pionPotential);
98
101
103
106
109 theStore = new Store(conf);
110 }
111
113 delete theStore;
115 /* We don't delete the potential and the density here any more -- Factories
116 * are caching them
117 delete thePotential;
118 delete theDensity;*/
119 }
120
122 // Reset the variables connected with the projectile remnant
125
127 for(ParticleIter i=particles.begin(), e=particles.end(); i!=e; ++i) {
129 }
131 particles.clear();
134 }
135
137 if(!finalstate) // do nothing if no final state was returned
138 return;
139
140 G4double totalEnergy = 0.0;
141
142 FinalStateValidity const validity = finalstate->getValidity();
143 if(validity == ValidFS) {
144
145 ParticleList const &created = finalstate->getCreatedParticles();
146 for(ParticleIter iter=created.begin(), e=created.end(); iter!=e; ++iter) {
147 theStore->add((*iter));
148 if(!(*iter)->isOutOfWell()) {
149 totalEnergy += (*iter)->getEnergy() - (*iter)->getPotentialEnergy();
150 }
151 }
152
153 ParticleList const &deleted = finalstate->getDestroyedParticles();
154 for(ParticleIter iter=deleted.begin(), e=deleted.end(); iter!=e; ++iter) {
156 }
157
158 ParticleList const &modified = finalstate->getModifiedParticles();
159 for(ParticleIter iter=modified.begin(), e=modified.end(); iter!=e; ++iter) {
161 totalEnergy += (*iter)->getEnergy() - (*iter)->getPotentialEnergy();
162 }
163
164 ParticleList const &out = finalstate->getOutgoingParticles();
165 for(ParticleIter iter=out.begin(), e=out.end(); iter!=e; ++iter) {
166 if((*iter)->isCluster()) {
167 Cluster *clusterOut = dynamic_cast<Cluster*>((*iter));
168// assert(clusterOut);
169#ifdef INCLXX_IN_GEANT4_MODE
170 if(!clusterOut)
171 continue;
172#endif
173 ParticleList const &components = clusterOut->getParticles();
174 for(ParticleIter in=components.begin(), end=components.end(); in!=end; ++in)
176 } else {
178 }
179 totalEnergy += (*iter)->getEnergy(); // No potential here because the particle is gone
180 theA -= (*iter)->getA();
181 theZ -= (*iter)->getZ();
182 theS -= (*iter)->getS();
183 theStore->addToOutgoing(*iter);
184 (*iter)->setEmissionTime(theStore->getBook().getCurrentTime());
185 }
186
187 ParticleList const &entering = finalstate->getEnteringParticles();
188 for(ParticleIter iter=entering.begin(), e=entering.end(); iter!=e; ++iter) {
189 insertParticle(*iter);
190 totalEnergy += (*iter)->getEnergy() - (*iter)->getPotentialEnergy();
191 }
192
193 // actually perform the removal of the scheduled avatars
195 } else if(validity == ParticleBelowFermiFS || validity == ParticleBelowZeroFS) {
196 INCL_DEBUG("A Particle is entering below the Fermi sea:" << '\n' << finalstate->print() << '\n');
197 tryCN = true;
198 ParticleList const &entering = finalstate->getEnteringParticles();
199 for(ParticleIter iter=entering.begin(), e=entering.end(); iter!=e; ++iter) {
200 insertParticle(*iter);
201 }
202 }
203
204 if(validity==ValidFS &&
205 std::abs(totalEnergy - finalstate->getTotalEnergyBeforeInteraction()) > 0.1) {
206 INCL_ERROR("Energy nonconservation! Energy at the beginning of the event = "
207 << finalstate->getTotalEnergyBeforeInteraction()
208 <<" and after interaction = "
209 << totalEnergy << '\n'
210 << finalstate->print());
211 }
212 }
213
215 INCL_WARN("Useless Nucleus::propagateParticles -method called." << '\n');
216 }
217
219 G4double totalEnergy = 0.0;
220 ParticleList const &inside = theStore->getParticles();
221 for(ParticleIter p=inside.begin(), e=inside.end(); p!=e; ++p) {
222 if((*p)->isNucleon()) // Ugly: we should calculate everything using total energies!
223 totalEnergy += (*p)->getKineticEnergy() - (*p)->getPotentialEnergy();
224 else if((*p)->isResonance())
225 totalEnergy += (*p)->getEnergy() - (*p)->getPotentialEnergy() - ParticleTable::effectiveNucleonMass;
226 else if((*p)->isHyperon())
227 totalEnergy += (*p)->getEnergy() - (*p)->getPotentialEnergy() - ParticleTable::getRealMass((*p)->getType());
228 else
229 totalEnergy += (*p)->getEnergy() - (*p)->getPotentialEnergy();
230 }
231
232 return totalEnergy;
233 }
234
236 // If the remnant consists of only one nucleon, we need to apply a special
237 // procedure to put it on mass shell.
238 if(theA==1) {
241 remnant=false;
242 return;
243 }
244
245 // Compute the recoil momentum and angular momentum
248
249 ParticleList const &outgoing = theStore->getOutgoingParticles();
250 for(ParticleIter p=outgoing.begin(), e=outgoing.end(); p!=e; ++p) {
251 theMomentum -= (*p)->getMomentum();
252 theSpin -= (*p)->getAngularMomentum();
253 }
257 }
258
259 // Subtract orbital angular momentum
262
265 remnant=true;
266 }
267
269 ThreeVector cm(0.,0.,0.);
270 G4double totalMass = 0.0;
271 ParticleList const &inside = theStore->getParticles();
272 for(ParticleIter p=inside.begin(), e=inside.end(); p!=e; ++p) {
273 const G4double mass = (*p)->getMass();
274 cm += (*p)->getPosition() * mass;
275 totalMass += mass;
276 }
277 cm /= totalMass;
278 return cm;
279 }
280
282 const G4double totalEnergy = computeTotalEnergy();
283 const G4double separationEnergies = computeSeparationEnergyBalance();
284
285 return totalEnergy - initialInternalEnergy - separationEnergies;
286 }
287
288 std::string Nucleus::print()
289 {
290 std::stringstream ss;
291 ss << "Particles in the nucleus:" << '\n'
292 << "Inside:" << '\n';
293 G4int counter = 1;
294 ParticleList const &inside = theStore->getParticles();
295 for(ParticleIter p=inside.begin(), e=inside.end(); p!=e; ++p) {
296 ss << "index = " << counter << '\n'
297 << (*p)->print();
298 counter++;
299 }
300 ss <<"Outgoing:" << '\n';
301 ParticleList const &outgoing = theStore->getOutgoingParticles();
302 for(ParticleIter p=outgoing.begin(), e=outgoing.end(); p!=e; ++p)
303 ss << (*p)->print();
304
305 return ss.str();
306 }
307
310 ParticleList deltas;
311 for(ParticleIter i=out.begin(), e=out.end(); i!=e; ++i) {
312 if((*i)->isDelta()) deltas.push_back((*i));
313 }
314 if(deltas.empty()) return false;
315
316 for(ParticleIter i=deltas.begin(), e=deltas.end(); i!=e; ++i) {
317 INCL_DEBUG("Decay outgoing delta particle:" << '\n'
318 << (*i)->print() << '\n');
319 const ThreeVector beta = -(*i)->boostVector();
320 const G4double deltaMass = (*i)->getMass();
321
322 // Set the delta momentum to zero and sample the decay in the CM frame.
323 // This makes life simpler if we are using real particle masses.
324 (*i)->setMomentum(ThreeVector());
325 (*i)->setEnergy((*i)->getMass());
326
327 // Use a DecayAvatar
328 IAvatar *decay = new DecayAvatar((*i), 0.0, NULL);
329 FinalState *fs = decay->getFinalState();
330 Particle * const pion = fs->getCreatedParticles().front();
331 Particle * const nucleon = fs->getModifiedParticles().front();
332
333 // Adjust the decay momentum if we are using the real masses
334 const G4double decayMomentum = KinematicsUtils::momentumInCM(deltaMass,
335 nucleon->getTableMass(),
336 pion->getTableMass());
337 ThreeVector newMomentum = pion->getMomentum();
338 newMomentum *= decayMomentum / newMomentum.mag();
339
340 pion->setTableMass();
341 pion->setMomentum(newMomentum);
342 pion->adjustEnergyFromMomentum();
343 pion->setEmissionTime(nucleon->getEmissionTime());
344 pion->boost(beta);
345 pion->setBiasCollisionVector(nucleon->getBiasCollisionVector());
346
347 nucleon->setTableMass();
348 nucleon->setMomentum(-newMomentum);
349 nucleon->adjustEnergyFromMomentum();
350 nucleon->boost(beta);
351
353
354 delete fs;
355 delete decay;
356 }
357
358 return true;
359 }
360
362 /* If there is a pion potential, do nothing (deltas will be counted as
363 * excitation energy).
364 * If, however, the remnant is unphysical (Z<0 or Z>A), force the deltas to
365 * decay and get rid of all the pions. In case you're wondering, you can
366 * end up with Z<0 or Z>A if the remnant contains more pi- than protons or
367 * more pi+ than neutrons, respectively.
368 */
369 const G4bool unphysicalRemnant = (theZ<0 || theZ>theA);
370 if(thePotential->hasPionPotential() && !unphysicalRemnant)
371 return false;
372
373 // Build a list of deltas (avoid modifying the list you are iterating on).
374 ParticleList const &inside = theStore->getParticles();
375 ParticleList deltas;
376 for(ParticleIter i=inside.begin(), e=inside.end(); i!=e; ++i)
377 if((*i)->isDelta()) deltas.push_back((*i));
378
379 // Loop over the deltas, make them decay
380 for(ParticleIter i=deltas.begin(), e=deltas.end(); i!=e; ++i) {
381 INCL_DEBUG("Decay inside delta particle:" << '\n'
382 << (*i)->print() << '\n');
383 // Create a forced-decay avatar. Note the last boolean parameter. Note
384 // also that if the remnant is unphysical we more or less explicitly give
385 // up energy conservation and CDPP by passing a NULL pointer for the
386 // nucleus.
387 IAvatar *decay;
388 if(unphysicalRemnant) {
389 INCL_WARN("Forcing delta decay inside an unphysical remnant (A=" << theA
390 << ", Z=" << theZ << "). Might lead to energy-violation warnings."
391 << '\n');
392 decay = new DecayAvatar((*i), 0.0, NULL, true);
393 } else
394 decay = new DecayAvatar((*i), 0.0, this, true);
395 FinalState *fs = decay->getFinalState();
396
397 // The pion can be ejected only if we managed to satisfy energy
398 // conservation and if pion emission does not lead to negative excitation
399 // energies.
400 if(fs->getValidity()==ValidFS) {
401 // Apply the final state to the nucleus
402 applyFinalState(fs);
403 }
404 delete fs;
405 delete decay;
406 }
407
408 // If the remnant is unphysical, emit all the pions
409 if(unphysicalRemnant) {
410 INCL_DEBUG("Remnant is unphysical: Z=" << theZ << ", A=" << theA << ", emitting all the pions" << '\n');
412 }
413
414 return true;
415 }
416
418
419 /* Transform each strange particles into a lambda
420 * Every Kaon (KPlus and KZero) are emited
421 */
422 const G4bool unphysicalRemnant = (theZ<0 || theZ>theA);
423 if(unphysicalRemnant){
425 INCL_WARN("Remnant is unphysical: Z=" << theZ << ", A=" << theA << ", too much strange particles? -> all emit" << '\n');
426 return false;
427 }
428
429 /* Build a list of particles with a strangeness == -1 except Lambda,
430 * and two other one for proton and neutron
431 */
432 ParticleList const &inside = theStore->getParticles();
433 ParticleList stranges;
434 ParticleList protons;
435 ParticleList neutrons;
436 for(ParticleIter i=inside.begin(), e=inside.end(); i!=e; ++i){
437 if((*i)->isSigma() || (*i)->isAntiKaon()) stranges.push_back((*i));
438 else if((*i)->isNucleon() && (*i)->getZ() == 1) protons.push_back((*i));
439 else if((*i)->isNucleon() && (*i)->getZ() == 0) neutrons.push_back((*i));
440 }
441
442 if((stranges.size() > protons.size()) || (stranges.size() > neutrons.size())){
443 INCL_WARN("Remnant is unphysical: Nproton=" << protons.size() << ", Nneutron=" << neutrons.size() << ", Strange particles : " << stranges.size() << '\n');
445 return false;
446 }
447
448 // Loop over the strange particles, make them absorbe
449 ParticleIter protonIter = protons.begin();
450 ParticleIter neutronIter = neutrons.begin();
451 for(ParticleIter i=stranges.begin(), e=stranges.end(); i!=e; ++i) {
452 INCL_DEBUG("Absorbe inside strange particles:" << '\n'
453 << (*i)->print() << '\n');
454 IAvatar *decay;
455 if((*i)->getType() == SigmaMinus){
456 decay = new DecayAvatar((*protonIter), (*i), 0.0, this, true);
457 ++protonIter;
458 }
459 else if((*i)->getType() == SigmaPlus){
460 decay = new DecayAvatar((*neutronIter), (*i), 0.0, this, true);
461 ++neutronIter;
462 }
463 else if(Random::shoot()*(protons.size() + neutrons.size()) < protons.size()){
464 decay = new DecayAvatar((*protonIter), (*i), 0.0, this, true);
465 ++protonIter;
466 }
467 else {
468 decay = new DecayAvatar((*neutronIter), (*i), 0.0, this, true);
469 ++neutronIter;
470 }
471 FinalState *fs = decay->getFinalState();
472 applyFinalState(fs);
473 delete fs;
474 delete decay;
475 }
476
477 return true;
478 }
479
482 ParticleList pionResonances;
483 for(ParticleIter i=out.begin(), e=out.end(); i!=e; ++i) {
484// if((*i)->isEta() || (*i)->isOmega()) pionResonances.push_back((*i));
485 if(((*i)->isEta() && timeThreshold > ParticleTable::getWidth(Eta)) || ((*i)->isOmega() && timeThreshold > ParticleTable::getWidth(Omega))) pionResonances.push_back((*i));
486 }
487 if(pionResonances.empty()) return false;
488
489 for(ParticleIter i=pionResonances.begin(), e=pionResonances.end(); i!=e; ++i) {
490 INCL_DEBUG("Decay outgoing pionResonances particle:" << '\n'
491 << (*i)->print() << '\n');
492 const ThreeVector beta = -(*i)->boostVector();
493 const G4double pionResonanceMass = (*i)->getMass();
494
495 // Set the pionResonance momentum to zero and sample the decay in the CM frame.
496 // This makes life simpler if we are using real particle masses.
497 (*i)->setMomentum(ThreeVector());
498 (*i)->setEnergy((*i)->getMass());
499
500 // Use a DecayAvatar
501 IAvatar *decay = new DecayAvatar((*i), 0.0, NULL);
502 FinalState *fs = decay->getFinalState();
503
504 Particle * const theModifiedParticle = fs->getModifiedParticles().front();
505 ParticleList const &created = fs->getCreatedParticles();
506 Particle * const theCreatedParticle1 = created.front();
507
508 if (created.size() == 1) {
509
510 // Adjust the decay momentum if we are using the real masses
511 const G4double decayMomentum = KinematicsUtils::momentumInCM(pionResonanceMass,theModifiedParticle->getTableMass(),theCreatedParticle1->getTableMass());
512 ThreeVector newMomentum = theCreatedParticle1->getMomentum();
513 newMomentum *= decayMomentum / newMomentum.mag();
514
515 theCreatedParticle1->setTableMass();
516 theCreatedParticle1->setMomentum(newMomentum);
517 theCreatedParticle1->adjustEnergyFromMomentum();
518 //theCreatedParticle1->setEmissionTime(nucleon->getEmissionTime());
519 theCreatedParticle1->boost(beta);
520 theCreatedParticle1->setBiasCollisionVector(theModifiedParticle->getBiasCollisionVector());
521
522 theModifiedParticle->setTableMass();
523 theModifiedParticle->setMomentum(-newMomentum);
524 theModifiedParticle->adjustEnergyFromMomentum();
525 theModifiedParticle->boost(beta);
526
527 theStore->addToOutgoing(theCreatedParticle1);
528 }
529 else if (created.size() == 2) {
530 Particle * const theCreatedParticle2 = created.back();
531
532 theCreatedParticle1->boost(beta);
533 theCreatedParticle1->setBiasCollisionVector(theModifiedParticle->getBiasCollisionVector());
534 theCreatedParticle2->boost(beta);
535 theCreatedParticle2->setBiasCollisionVector(theModifiedParticle->getBiasCollisionVector());
536 theModifiedParticle->boost(beta);
537
538 theStore->addToOutgoing(theCreatedParticle1);
539 theStore->addToOutgoing(theCreatedParticle2);
540 }
541 else {
542 INCL_ERROR("Wrong number (< 2) of created particles during the decay of a pion resonance");
543 }
544 delete fs;
545 delete decay;
546 }
547
548 return true;
549 }
550
553 ParticleList neutralsigma;
554 for(ParticleIter i=out.begin(), e=out.end(); i!=e; ++i) {
555 if((*i)->getType() == SigmaZero && timeThreshold > ParticleTable::getWidth(SigmaZero)) neutralsigma.push_back((*i));
556 }
557 if(neutralsigma.empty()) return false;
558
559 for(ParticleIter i=neutralsigma.begin(), e=neutralsigma.end(); i!=e; ++i) {
560 INCL_DEBUG("Decay outgoing neutral sigma:" << '\n'
561 << (*i)->print() << '\n');
562 const ThreeVector beta = -(*i)->boostVector();
563 const G4double neutralsigmaMass = (*i)->getMass();
564
565 // Set the neutral sigma momentum to zero and sample the decay in the CM frame.
566 // This makes life simpler if we are using real particle masses.
567 (*i)->setMomentum(ThreeVector());
568 (*i)->setEnergy((*i)->getMass());
569
570 // Use a DecayAvatar
571 IAvatar *decay = new DecayAvatar((*i), 0.0, NULL);
572 FinalState *fs = decay->getFinalState();
573
574 Particle * const theModifiedParticle = fs->getModifiedParticles().front();
575 ParticleList const &created = fs->getCreatedParticles();
576 Particle * const theCreatedParticle = created.front();
577
578 if (created.size() == 1) {
579
580 // Adjust the decay momentum if we are using the real masses
581 const G4double decayMomentum = KinematicsUtils::momentumInCM(neutralsigmaMass,theModifiedParticle->getTableMass(),theCreatedParticle->getTableMass());
582 ThreeVector newMomentum = theCreatedParticle->getMomentum();
583 newMomentum *= decayMomentum / newMomentum.mag();
584
585 theCreatedParticle->setTableMass();
586 theCreatedParticle->setMomentum(newMomentum);
587 theCreatedParticle->adjustEnergyFromMomentum();
588 theCreatedParticle->boost(beta);
589 theCreatedParticle->setBiasCollisionVector(theModifiedParticle->getBiasCollisionVector());
590
591 theModifiedParticle->setTableMass();
592 theModifiedParticle->setMomentum(-newMomentum);
593 theModifiedParticle->adjustEnergyFromMomentum();
594 theModifiedParticle->boost(beta);
595
596 theStore->addToOutgoing(theCreatedParticle);
597 }
598 else {
599 INCL_ERROR("Wrong number (!= 1) of created particles during the decay of a sigma zero");
600 }
601 delete fs;
602 delete decay;
603 }
604
605 return true;
606 }
607
610 ParticleList neutralkaon;
611 for(ParticleIter i=out.begin(), e=out.end(); i!=e; ++i) {
612 if((*i)->getType() == KZero || (*i)->getType() == KZeroBar) neutralkaon.push_back((*i));
613 }
614 if(neutralkaon.empty()) return false;
615
616 for(ParticleIter i=neutralkaon.begin(), e=neutralkaon.end(); i!=e; ++i) {
617 INCL_DEBUG("Transform outgoing neutral kaon:" << '\n'
618 << (*i)->print() << '\n');
619
620 // Use a DecayAvatar
621 IAvatar *decay = new DecayAvatar((*i), 0.0, NULL);
622 FinalState *fs = decay->getFinalState();
623
624 delete fs;
625 delete decay;
626 }
627
628 return true;
629 }
630
633 ParticleList clusters;
634 for(ParticleIter i=out.begin(), e=out.end(); i!=e; ++i) {
635 if((*i)->isCluster()) clusters.push_back((*i));
636 }
637 if(clusters.empty()) return false;
638
639 for(ParticleIter i=clusters.begin(), e=clusters.end(); i!=e; ++i) {
640 Cluster *cluster = dynamic_cast<Cluster*>(*i); // Can't avoid using a cast here
641// assert(cluster);
642#ifdef INCLXX_IN_GEANT4_MODE
643 if(!cluster)
644 continue;
645#endif
646 cluster->deleteParticles(); // Don't need them
647 ParticleList decayProducts = ClusterDecay::decay(cluster);
648 for(ParticleIter j=decayProducts.begin(), end=decayProducts.end(); j!=end; ++j){
649 (*j)->setBiasCollisionVector(cluster->getBiasCollisionVector());
651 }
652 }
653 return true;
654 }
655
657 // Do the phase-space decay only if Z=0 or N=0
658 if(theA<=1 || (theZ!=0 && (theA+theS)!=theZ))
659 return false;
660
661 ParticleList decayProducts = ClusterDecay::decay(this);
662 for(ParticleIter j=decayProducts.begin(), e=decayProducts.end(); j!=e; ++j){
663 (*j)->setBiasCollisionVector(this->getBiasCollisionVector());
665 }
666
667 return true;
668 }
669
671 /* Forcing emissions of all pions in the nucleus. This probably violates
672 * energy conservation (although the computation of the recoil kinematics
673 * might sweep this under the carpet).
674 */
675 INCL_WARN("Forcing emissions of all pions in the nucleus." << '\n');
676
677 // Emit the pions with this kinetic energy
678 const G4double tinyPionEnergy = 0.1; // MeV
679
680 // Push out the emitted pions
681 ParticleList const &inside = theStore->getParticles();
682 ParticleList toEject;
683 for(ParticleIter i=inside.begin(), e=inside.end(); i!=e; ++i) {
684 if((*i)->isPion()) {
685 Particle * const thePion = *i;
686 INCL_DEBUG("Forcing emission of the following particle: "
687 << thePion->print() << '\n');
689 // Correction for real masses
690 const G4double theQValueCorrection = thePion->getEmissionQValueCorrection(theA,theZ,theS);
691 const G4double kineticEnergyOutside = thePion->getKineticEnergy() - thePion->getPotentialEnergy() + theQValueCorrection;
692 thePion->setTableMass();
693 if(kineticEnergyOutside > 0.0)
694 thePion->setEnergy(thePion->getMass()+kineticEnergyOutside);
695 else
696 thePion->setEnergy(thePion->getMass()+tinyPionEnergy);
697 thePion->adjustMomentumFromEnergy();
698 thePion->setPotentialEnergy(0.);
699 theZ -= thePion->getZ();
700 toEject.push_back(thePion);
701 }
702 }
703 for(ParticleIter i=toEject.begin(), e=toEject.end(); i!=e; ++i) {
706 (*i)->setParticleBias(Particle::getTotalBias());
707 }
708 }
709
711 /* Forcing emissions of Sigmas and antiKaons.
712 * This probably violates energy conservation
713 * (although the computation of the recoil kinematics
714 * might sweep this under the carpet).
715 */
716 INCL_DEBUG("Forcing emissions of all strange particles in the nucleus." << '\n');
717
718 // Emit the strange particles with this kinetic energy
719 const G4double tinyEnergy = 0.1; // MeV
720
721 // Push out the emitted strange particles
722 ParticleList const &inside = theStore->getParticles();
723 ParticleList toEject;
724 for(ParticleIter i=inside.begin(), e=inside.end(); i!=e; ++i) {
725 if((*i)->isSigma() || (*i)->isAntiKaon()) {
726 Particle * const theParticle = *i;
727 INCL_DEBUG("Forcing emission of the following particle: "
728 << theParticle->print() << '\n');
730 // Correction for real masses
731 const G4double theQValueCorrection = theParticle->getEmissionQValueCorrection(theA,theZ,theS); // Does it work for strange particles? should be check
732 const G4double kineticEnergyOutside = theParticle->getKineticEnergy() - theParticle->getPotentialEnergy() + theQValueCorrection;
733 theParticle->setTableMass();
734 if(kineticEnergyOutside > 0.0)
735 theParticle->setEnergy(theParticle->getMass()+kineticEnergyOutside);
736 else
737 theParticle->setEnergy(theParticle->getMass()+tinyEnergy);
738 theParticle->adjustMomentumFromEnergy();
739 theParticle->setPotentialEnergy(0.);
740 theA -= theParticle->getA();
741 theZ -= theParticle->getZ();
742 theS -= theParticle->getS();
743 toEject.push_back(theParticle);
744 }
745 }
746 for(ParticleIter i=toEject.begin(), e=toEject.end(); i!=e; ++i) {
749 (*i)->setParticleBias(Particle::getTotalBias());
750 }
751 }
752
754 /* Forcing emissions of all Lambda in the nucleus.
755 * This probably violates energy conservation
756 * (although the computation of the recoil kinematics
757 * might sweep this under the carpet).
758 */
759 INCL_DEBUG("Forcing emissions of all Lambda in the nucleus." << '\n');
760
761 // Emit the Lambda with this kinetic energy
762 const G4double tinyEnergy = 0.1; // MeV
763
764 // Push out the emitted Lambda
765 ParticleList const &inside = theStore->getParticles();
766 ParticleList toEject;
767 for(ParticleIter i=inside.begin(), e=inside.end(); i!=e; ++i) {
768 if((*i)->isLambda()) {
769 Particle * const theLambda = *i;
770 INCL_DEBUG("Forcing emission of the following particle: "
771 << theLambda->print() << '\n');
773 // Correction for real masses
774 const G4double theQValueCorrection = theLambda->getEmissionQValueCorrection(theA,theZ,theS); // Does it work for strange particles? Should be check
775 const G4double kineticEnergyOutside = theLambda->getKineticEnergy() - theLambda->getPotentialEnergy() + theQValueCorrection;
776 theLambda->setTableMass();
777 if(kineticEnergyOutside > 0.0)
778 theLambda->setEnergy(theLambda->getMass()+kineticEnergyOutside);
779 else
780 theLambda->setEnergy(theLambda->getMass()+tinyEnergy);
781 theLambda->adjustMomentumFromEnergy();
782 theLambda->setPotentialEnergy(0.);
783 theA -= theLambda->getA();
784 theS -= theLambda->getS();
785 toEject.push_back(theLambda);
786 }
787 }
788 for(ParticleIter i=toEject.begin(), e=toEject.end(); i!=e; ++i) {
791 (*i)->setParticleBias(Particle::getTotalBias());
792 }
793 return toEject.size();
794 }
795
797 /* Forcing emissions of all Kaon (not antiKaons) in the nucleus.
798 * This probably violates energy conservation
799 * (although the computation of the recoil kinematics
800 * might sweep this under the carpet).
801 */
802 INCL_DEBUG("Forcing emissions of all Kaon in the nucleus." << '\n');
803
804 // Emit the Kaon with this kinetic energy (not supposed to append
805 const G4double tinyEnergy = 0.1; // MeV
806
807 // Push out the emitted kaon
808 ParticleList const &inside = theStore->getParticles();
809 ParticleList toEject;
810 for(ParticleIter i=inside.begin(), e=inside.end(); i!=e; ++i) {
811 if((*i)->isKaon()) {
812 Particle * const theKaon = *i;
813 INCL_DEBUG("Forcing emission of the following particle: "
814 << theKaon->print() << '\n');
816 // Correction for real masses
817 const G4double theQValueCorrection = theKaon->getEmissionQValueCorrection(theA,theZ,theS);
818 const G4double kineticEnergyOutside = theKaon->getKineticEnergy() - theKaon->getPotentialEnergy() + theQValueCorrection;
819 theKaon->setTableMass();
820 if(kineticEnergyOutside > 0.0)
821 theKaon->setEnergy(theKaon->getMass()+kineticEnergyOutside);
822 else
823 theKaon->setEnergy(theKaon->getMass()+tinyEnergy);
824 theKaon->adjustMomentumFromEnergy();
825 theKaon->setPotentialEnergy(0.);
826 theZ -= theKaon->getZ();
827 theS -= theKaon->getS();
828 toEject.push_back(theKaon);
829 }
830 }
831 for(ParticleIter i=toEject.begin(), e=toEject.end(); i!=e; ++i) {
834 (*i)->setParticleBias(Particle::getTotalBias());
835 }
836 theNKaon -= 1;
837 return toEject.size() != 0;
838 }
839
841
842 Book const &theBook = theStore->getBook();
843 const G4int nEventCollisions = theBook.getAcceptedCollisions();
844 const G4int nEventDecays = theBook.getAcceptedDecays();
845 const G4int nEventClusters = theBook.getEmittedClusters();
846 if(nEventCollisions==0 && nEventDecays==0 && nEventClusters==0)
847 return true;
848
849 return false;
850
851 }
852
854 // We should be here only if the nucleus contains only one nucleon
855// assert(theStore->getParticles().size()==1);
856
857 // No excitation energy!
859
860 // Move the nucleon to the outgoing list
861 Particle *remN = theStore->getParticles().front();
862 theA -= remN->getA();
863 theZ -= remN->getZ();
864 theS -= remN->getS();
866 theStore->addToOutgoing(remN);
868
869 // Treat the special case of a remaining delta
870 if(remN->isDelta()) {
871 IAvatar *decay = new DecayAvatar(remN, 0.0, NULL);
872 FinalState *fs = decay->getFinalState();
873 // Eject the pion
874 ParticleList const &created = fs->getCreatedParticles();
875 for(ParticleIter j=created.begin(), e=created.end(); j!=e; ++j)
877 delete fs;
878 delete decay;
879 }
880
881 // Do different things depending on how many outgoing particles we have
882 ParticleList const &outgoing = theStore->getOutgoingParticles();
883 if(outgoing.size() == 2) {
884
885 INCL_DEBUG("Two particles in the outgoing channel, applying exact two-body kinematics" << '\n');
886
887 // Can apply exact 2-body kinematics here. Keep the CM emission angle of
888 // the first particle.
889 Particle *p1 = outgoing.front(), *p2 = outgoing.back();
890 const ThreeVector aBoostVector = incomingMomentum / initialEnergy;
891 // Boost to the initial CM
892 p1->boost(aBoostVector);
893 const G4double sqrts = std::sqrt(initialEnergy*initialEnergy - incomingMomentum.mag2());
894 const G4double pcm = KinematicsUtils::momentumInCM(sqrts, p1->getMass(), p2->getMass());
895 const G4double scale = pcm/(p1->getMomentum().mag());
896 // Reset the momenta
897 p1->setMomentum(p1->getMomentum()*scale);
898 p2->setMomentum(-p1->getMomentum());
900 p2->adjustEnergyFromMomentum();
901 // Unboost
902 p1->boost(-aBoostVector);
903 p2->boost(-aBoostVector);
904
905 } else {
906
907 INCL_DEBUG("Trying to adjust final-state momenta to achieve energy and momentum conservation" << '\n');
908
909 const G4int maxIterations=8;
910 G4double totalEnergy, energyScale;
911 G4double val=1.E+100, oldVal=1.E+100, oldOldVal=1.E+100, oldOldOldVal;
912 ThreeVector totalMomentum, deltaP;
913 std::vector<ThreeVector> minMomenta; // use it to store the particle momenta that minimize the merit function
914
915 // Reserve the vector size
916 minMomenta.reserve(outgoing.size());
917
918 // Compute the initial total momentum
919 totalMomentum.setX(0.0);
920 totalMomentum.setY(0.0);
921 totalMomentum.setZ(0.0);
922 for(ParticleIter i=outgoing.begin(), e=outgoing.end(); i!=e; ++i)
923 totalMomentum += (*i)->getMomentum();
924
925 // Compute the initial total energy
926 totalEnergy = 0.0;
927 for(ParticleIter i=outgoing.begin(), e=outgoing.end(); i!=e; ++i)
928 totalEnergy += (*i)->getEnergy();
929
930 // Iterative algorithm starts here:
931 for(G4int iterations=0; iterations < maxIterations; ++iterations) {
932
933 // Save the old merit-function values
934 oldOldOldVal = oldOldVal;
935 oldOldVal = oldVal;
936 oldVal = val;
937
938 if(iterations%2 == 0) {
939 INCL_DEBUG("Momentum step" << '\n');
940 // Momentum step: modify all the particle momenta
941 deltaP = incomingMomentum - totalMomentum;
942 G4double pOldTot = 0.0;
943 for(ParticleIter i=outgoing.begin(), e=outgoing.end(); i!=e; ++i)
944 pOldTot += (*i)->getMomentum().mag();
945 for(ParticleIter i=outgoing.begin(), e=outgoing.end(); i!=e; ++i) {
946 const ThreeVector mom = (*i)->getMomentum();
947 (*i)->setMomentum(mom + deltaP*mom.mag()/pOldTot);
948 (*i)->adjustEnergyFromMomentum();
949 }
950 } else {
951 INCL_DEBUG("Energy step" << '\n');
952 // Energy step: modify all the particle momenta
953 energyScale = initialEnergy/totalEnergy;
954 for(ParticleIter i=outgoing.begin(), e=outgoing.end(); i!=e; ++i) {
955 const ThreeVector mom = (*i)->getMomentum();
956 G4double pScale = ((*i)->getEnergy()*energyScale - std::pow((*i)->getMass(),2))/mom.mag2();
957 if(pScale>0) {
958 (*i)->setEnergy((*i)->getEnergy()*energyScale);
959 (*i)->adjustMomentumFromEnergy();
960 }
961 }
962 }
963
964 // Compute the current total momentum and energy
965 totalMomentum.setX(0.0);
966 totalMomentum.setY(0.0);
967 totalMomentum.setZ(0.0);
968 totalEnergy = 0.0;
969 for(ParticleIter i=outgoing.begin(), e=outgoing.end(); i!=e; ++i) {
970 totalMomentum += (*i)->getMomentum();
971 totalEnergy += (*i)->getEnergy();
972 }
973
974 // Merit factor
975 val = std::pow(totalEnergy - initialEnergy,2) +
976 0.25*(totalMomentum - incomingMomentum).mag2();
977 INCL_DEBUG("Merit function: val=" << val << ", oldVal=" << oldVal << ", oldOldVal=" << oldOldVal << ", oldOldOldVal=" << oldOldOldVal << '\n');
978
979 // Store the minimum
980 if(val < oldVal) {
981 INCL_DEBUG("New minimum found, storing the particle momenta" << '\n');
982 minMomenta.clear();
983 for(ParticleIter i=outgoing.begin(), e=outgoing.end(); i!=e; ++i)
984 minMomenta.push_back((*i)->getMomentum());
985 }
986
987 // Stop the algorithm if the search diverges
988 if(val > oldOldVal && oldVal > oldOldOldVal) {
989 INCL_DEBUG("Search is diverging, breaking out of the iteration loop: val=" << val << ", oldVal=" << oldVal << ", oldOldVal=" << oldOldVal << ", oldOldOldVal=" << oldOldOldVal << '\n');
990 break;
991 }
992 }
993
994 // We should have made at least one successful iteration here
995// assert(minMomenta.size()==outgoing.size());
996
997 // Apply the optimal momenta
998 INCL_DEBUG("Applying the solution" << '\n');
999 std::vector<ThreeVector>::const_iterator v = minMomenta.begin();
1000 for(ParticleIter i=outgoing.begin(), e=outgoing.end(); i!=e; ++i, ++v) {
1001 (*i)->setMomentum(*v);
1002 (*i)->adjustEnergyFromMomentum();
1003 INCL_DATABLOCK((*i)->print());
1004 }
1005
1006 }
1007
1008 }
1009
1011 eventInfo->nParticles = 0;
1012 G4bool isNucleonAbsorption = false;
1013
1014 G4bool isPionAbsorption = false;
1015 // It is possible to have pion absorption event only if the
1016 // projectile is pion.
1017 if(eventInfo->projectileType == PiPlus ||
1018 eventInfo->projectileType == PiMinus ||
1019 eventInfo->projectileType == PiZero) {
1020 isPionAbsorption = true;
1021 }
1022
1023 // Forced CN
1024 eventInfo->forcedCompoundNucleus = tryCN;
1025
1026 // Outgoing particles
1027 ParticleList const &outgoingParticles = getStore()->getOutgoingParticles();
1028
1029 // Check if we have a nucleon absorption event: nucleon projectile
1030 // and no ejected particles.
1031 if(outgoingParticles.size() == 0 &&
1032 (eventInfo->projectileType == Proton ||
1033 eventInfo->projectileType == Neutron)) {
1034 isNucleonAbsorption = true;
1035 }
1036
1037 // Reset the remnant counter
1038 eventInfo->nRemnants = 0;
1039 eventInfo->history.clear();
1040
1041 for(ParticleIter i=outgoingParticles.begin(), e=outgoingParticles.end(); i!=e; ++i ) {
1042 // We have a pion absorption event only if the projectile is
1043 // pion and there are no ejected pions.
1044 if(isPionAbsorption) {
1045 if((*i)->isPion()) {
1046 isPionAbsorption = false;
1047 }
1048 }
1049
1050 eventInfo->ParticleBias[eventInfo->nParticles] = (*i)->getParticleBias();
1051
1052 eventInfo->A[eventInfo->nParticles] = (*i)->getA();
1053 eventInfo->Z[eventInfo->nParticles] = (*i)->getZ();
1054 eventInfo->S[eventInfo->nParticles] = (*i)->getS();
1055 eventInfo->emissionTime[eventInfo->nParticles] = (*i)->getEmissionTime();
1056 eventInfo->EKin[eventInfo->nParticles] = (*i)->getKineticEnergy();
1057 ThreeVector mom = (*i)->getMomentum();
1058 eventInfo->px[eventInfo->nParticles] = mom.getX();
1059 eventInfo->py[eventInfo->nParticles] = mom.getY();
1060 eventInfo->pz[eventInfo->nParticles] = mom.getZ();
1061 eventInfo->theta[eventInfo->nParticles] = Math::toDegrees(mom.theta());
1062 eventInfo->phi[eventInfo->nParticles] = Math::toDegrees(mom.phi());
1063 eventInfo->origin[eventInfo->nParticles] = -1;
1064 eventInfo->history.push_back("");
1065 if ((*i)->getType() != Composite) {
1066 ParticleSpecies pt((*i)->getType());
1067 eventInfo->PDGCode[eventInfo->nParticles] = pt.getPDGCode();
1068 }
1069 else {
1070 ParticleSpecies pt((*i)->getA(), (*i)->getZ(), (*i)->getS());
1071 eventInfo->PDGCode[eventInfo->nParticles] = pt.getPDGCode();
1072 }
1073 eventInfo->nParticles++;
1074 }
1075 eventInfo->nucleonAbsorption = isNucleonAbsorption;
1076 eventInfo->pionAbsorption = isPionAbsorption;
1077 eventInfo->nCascadeParticles = eventInfo->nParticles;
1078
1079 // Projectile-like remnant characteristics
1081 eventInfo->ARem[eventInfo->nRemnants] = theProjectileRemnant->getA();
1082 eventInfo->ZRem[eventInfo->nRemnants] = theProjectileRemnant->getZ();
1083 eventInfo->SRem[eventInfo->nRemnants] = theProjectileRemnant->getS();
1085 if(std::abs(eStar)<1E-10)
1086 eStar = 0.0; // blame rounding and set the excitation energy to zero
1087 eventInfo->EStarRem[eventInfo->nRemnants] = eStar;
1088 if(eventInfo->EStarRem[eventInfo->nRemnants]<0.) {
1089 INCL_WARN("Negative excitation energy in projectile-like remnant! EStarRem = " << eventInfo->EStarRem[eventInfo->nRemnants] << '\n');
1090 }
1091 const ThreeVector &spin = theProjectileRemnant->getSpin();
1092 if(eventInfo->ARem[eventInfo->nRemnants]%2==0) { // even-A nucleus
1093 eventInfo->JRem[eventInfo->nRemnants] = (G4int) (spin.mag()/PhysicalConstants::hc + 0.5);
1094 } else { // odd-A nucleus
1095 eventInfo->JRem[eventInfo->nRemnants] = ((G4int) (spin.mag()/PhysicalConstants::hc)) + 0.5;
1096 }
1097 eventInfo->EKinRem[eventInfo->nRemnants] = theProjectileRemnant->getKineticEnergy();
1099 eventInfo->pxRem[eventInfo->nRemnants] = mom.getX();
1100 eventInfo->pyRem[eventInfo->nRemnants] = mom.getY();
1101 eventInfo->pzRem[eventInfo->nRemnants] = mom.getZ();
1102 eventInfo->jxRem[eventInfo->nRemnants] = spin.getX() / PhysicalConstants::hc;
1103 eventInfo->jyRem[eventInfo->nRemnants] = spin.getY() / PhysicalConstants::hc;
1104 eventInfo->jzRem[eventInfo->nRemnants] = spin.getZ() / PhysicalConstants::hc;
1105 eventInfo->thetaRem[eventInfo->nRemnants] = Math::toDegrees(mom.theta());
1106 eventInfo->phiRem[eventInfo->nRemnants] = Math::toDegrees(mom.phi());
1107 eventInfo->nRemnants++;
1108 }
1109
1110 // Target-like remnant characteristics
1111 if(hasRemnant()) {
1112 eventInfo->ARem[eventInfo->nRemnants] = getA();
1113 eventInfo->ZRem[eventInfo->nRemnants] = getZ();
1114 eventInfo->SRem[eventInfo->nRemnants] = getS();
1115 eventInfo->EStarRem[eventInfo->nRemnants] = getExcitationEnergy();
1116 if(eventInfo->EStarRem[eventInfo->nRemnants]<0.) {
1117 INCL_WARN("Negative excitation energy in target-like remnant! EStarRem = " << eventInfo->EStarRem[eventInfo->nRemnants] << " eventNumber=" << eventInfo->eventNumber << '\n');
1118 }
1119 const ThreeVector &spin = getSpin();
1120 if(eventInfo->ARem[eventInfo->nRemnants]%2==0) { // even-A nucleus
1121 eventInfo->JRem[eventInfo->nRemnants] = (G4int) (spin.mag()/PhysicalConstants::hc + 0.5);
1122 } else { // odd-A nucleus
1123 eventInfo->JRem[eventInfo->nRemnants] = ((G4int) (spin.mag()/PhysicalConstants::hc)) + 0.5;
1124 }
1125 eventInfo->EKinRem[eventInfo->nRemnants] = getKineticEnergy();
1126 const ThreeVector &mom = getMomentum();
1127 eventInfo->pxRem[eventInfo->nRemnants] = mom.getX();
1128 eventInfo->pyRem[eventInfo->nRemnants] = mom.getY();
1129 eventInfo->pzRem[eventInfo->nRemnants] = mom.getZ();
1130 eventInfo->jxRem[eventInfo->nRemnants] = spin.getX() / PhysicalConstants::hc;
1131 eventInfo->jyRem[eventInfo->nRemnants] = spin.getY() / PhysicalConstants::hc;
1132 eventInfo->jzRem[eventInfo->nRemnants] = spin.getZ() / PhysicalConstants::hc;
1133 eventInfo->thetaRem[eventInfo->nRemnants] = Math::toDegrees(mom.theta());
1134 eventInfo->phiRem[eventInfo->nRemnants] = Math::toDegrees(mom.phi());
1135 eventInfo->nRemnants++;
1136 }
1137
1138 // Global counters, flags, etc.
1139 Book const &theBook = theStore->getBook();
1140 eventInfo->nCollisions = theBook.getAcceptedCollisions();
1141 eventInfo->nBlockedCollisions = theBook.getBlockedCollisions();
1142 eventInfo->nDecays = theBook.getAcceptedDecays();
1143 eventInfo->nBlockedDecays = theBook.getBlockedDecays();
1144 eventInfo->firstCollisionTime = theBook.getFirstCollisionTime();
1145 eventInfo->firstCollisionXSec = theBook.getFirstCollisionXSec();
1149 eventInfo->nReflectionAvatars = theBook.getAvatars(SurfaceAvatarType);
1150 eventInfo->nCollisionAvatars = theBook.getAvatars(CollisionAvatarType);
1151 eventInfo->nDecayAvatars = theBook.getAvatars(DecayAvatarType);
1153 }
1154
1156 ConservationBalance theBalance;
1157 // Initialise balance variables with the incoming values
1158 theBalance.Z = theEventInfo.Zp + theEventInfo.Zt;
1159 theBalance.A = theEventInfo.Ap + theEventInfo.At;
1160 theBalance.S = theEventInfo.Sp + theEventInfo.St;
1161
1162 theBalance.energy = getInitialEnergy();
1163 theBalance.momentum = getIncomingMomentum();
1164
1165 // Process outgoing particles
1166 ParticleList const &outgoingParticles = theStore->getOutgoingParticles();
1167 for(ParticleIter i=outgoingParticles.begin(), e=outgoingParticles.end(); i!=e; ++i ) {
1168 theBalance.Z -= (*i)->getZ();
1169 theBalance.A -= (*i)->getA();
1170 theBalance.S -= (*i)->getS();
1171 // For outgoing clusters, the total energy automatically includes the
1172 // excitation energy
1173 theBalance.energy -= (*i)->getEnergy(); // Note that outgoing particles should have the real mass
1174 theBalance.momentum -= (*i)->getMomentum();
1175 }
1176
1177 // Projectile-like remnant contribution, if present
1179 theBalance.Z -= theProjectileRemnant->getZ();
1180 theBalance.A -= theProjectileRemnant->getA();
1181 theBalance.S -= theProjectileRemnant->getS();
1185 theBalance.momentum -= theProjectileRemnant->getMomentum();
1186 }
1187
1188 // Target-like remnant contribution, if present
1189 if(hasRemnant()) {
1190 theBalance.Z -= getZ();
1191 theBalance.A -= getA();
1192 theBalance.S -= getS();
1193 theBalance.energy -= ParticleTable::getTableMass(getA(),getZ(),getS()) +
1195 if(afterRecoil)
1196 theBalance.energy -= getKineticEnergy();
1197 theBalance.momentum -= getMomentum();
1198 }
1199
1200 return theBalance;
1201 }
1202
1209 }
1210
1212 // Deal with the projectile remnant
1213 const G4int prA = theProjectileRemnant->getA();
1214 if(prA>=1) {
1215 // Set the mass
1218
1219 // Compute the excitation energy from the invariant mass
1220 const G4double anExcitationEnergy = aMass
1222
1223 // Set the excitation energy
1224 theProjectileRemnant->setExcitationEnergy(anExcitationEnergy);
1225
1226 // No spin!
1228
1229 // Set the emission time
1230 theProjectileRemnant->setEmissionTime(anEmissionTime);
1231 }
1232 }
1233
1234}
1235
1236#endif
Static class for carrying out cluster decays.
Simple class implementing De Jong's spin model for nucleus-nucleus collisions.
#define INCL_ERROR(x)
#define INCL_WARN(x)
#define INCL_DATABLOCK(x)
#define INCL_DEBUG(x)
static constexpr double cm
Definition: G4SIunits.hh:99
double G4double
Definition: G4Types.hh:83
bool G4bool
Definition: G4Types.hh:86
int G4int
Definition: G4Types.hh:85
G4int getAcceptedDecays() const
Definition: G4INCLBook.hh:102
G4double getFirstCollisionXSec() const
Definition: G4INCLBook.hh:86
G4double getFirstCollisionTime() const
Definition: G4INCLBook.hh:83
G4int getAvatars(AvatarType type) const
Definition: G4INCLBook.hh:104
G4double getFirstCollisionSpectatorMomentum() const
Definition: G4INCLBook.hh:92
G4double getCurrentTime() const
Definition: G4INCLBook.hh:98
G4int getAcceptedCollisions() const
Definition: G4INCLBook.hh:100
G4double getFirstCollisionSpectatorPosition() const
Definition: G4INCLBook.hh:89
G4int getBlockedCollisions() const
Definition: G4INCLBook.hh:101
G4bool getFirstCollisionIsElastic() const
Definition: G4INCLBook.hh:95
G4int getEnergyViolationInteraction() const
Definition: G4INCLBook.hh:107
G4int getBlockedDecays() const
Definition: G4INCLBook.hh:103
G4int getEmittedClusters() const
Definition: G4INCLBook.hh:106
ThreeVector const & getSpin() const
Get the spin of the nucleus.
ParticleList particles
ParticleList const & getParticles() const
void setExcitationEnergy(const G4double e)
Set the excitation energy of the cluster.
void setSpin(const ThreeVector &j)
Set the spin of the nucleus.
virtual void initializeParticles()
Initialise the NuclearDensity pointer and sample the particles.
ParticleSampler * theParticleSampler
G4INCL::ThreeVector getAngularMomentum() const
Get the total angular momentum (orbital + spin)
ThreeVector theSpin
G4double getExcitationEnergy() const
Get the excitation energy of the cluster.
virtual G4double getTableMass() const
Get the real particle mass.
G4double theExcitationEnergy
G4bool getPionPotential() const
Do we want the pion potential?
PotentialType getPotentialType() const
Get the type of the potential for nucleons.
ParticleList const & getOutgoingParticles() const
ParticleList const & getEnteringParticles() const
std::string print() const
ParticleList const & getModifiedParticles() const
FinalStateValidity getValidity() const
ParticleList const & getDestroyedParticles() const
G4double getTotalEnergyBeforeInteraction() const
ParticleList const & getCreatedParticles() const
G4double getMaximumRadius() const
G4double getSeparationEnergy(const Particle *const p) const
Return the separation energy for a particle.
G4bool hasPionPotential() const
Do we have a pion potential?
G4bool decayOutgoingNeutralKaon()
Force the transformation of outgoing Neutral Kaon into propation eigenstate.
G4double computeSeparationEnergyBalance() const
Outgoing - incoming separation energies.
Store * getStore() const
void fillEventInfo(EventInfo *eventInfo)
G4bool decayMe()
Force the phase-space decay of the Nucleus.
ThreeVector incomingAngularMomentum
G4double computeTotalEnergy() const
Compute the current total energy.
G4bool decayInsideDeltas()
Force the decay of deltas inside the nucleus.
void computeRecoilKinematics()
Compute the recoil momentum and spin of the nucleus.
void finalizeProjectileRemnant(const G4double emissionTime)
Finalise the projectile remnant.
NuclearDensity const * theDensity
Pointer to the NuclearDensity object.
ProjectileRemnant * theProjectileRemnant
Pointer to the quasi-projectile.
G4bool emitInsideKaon()
Force emission of all Kaon inside the nucleus.
G4bool isEventTransparent() const
Is the event transparent?
G4double initialEnergy
void applyFinalState(FinalState *)
ThreeVector initialCenterOfMass
void insertParticle(Particle *p)
Insert a new particle (e.g. a projectile) in the nucleus.
void emitInsideStrangeParticles()
Force emission of all strange particles inside the nucleus.
void deleteProjectileRemnant()
Delete the projectile remnant.
std::string print()
G4bool decayOutgoingPionResonances(G4double timeThreshold)
Force the decay of outgoing PionResonances (eta/omega).
void useFusionKinematics()
Adjust the kinematics for complete-fusion events.
const ThreeVector & getIncomingMomentum() const
Get the incoming momentum vector.
void emitInsidePions()
Force emission of all pions inside the nucleus.
G4double getInitialEnergy() const
Get the initial energy.
ThreeVector computeCenterOfMass() const
Compute the current center-of-mass position.
G4bool decayOutgoingClusters()
Force the decay of unstable outgoing clusters.
G4double getExcitationEnergy() const
Get the excitation energy of the nucleus.
G4int emitInsideLambda()
Force emission of all Lambda (desexitation code with strangeness not implanted yet)
Nucleus(G4int mass, G4int charge, G4int strangess, Config const *const conf, const G4double universeRadius=-1.)
void propagateParticles(G4double step)
ThreeVector incomingMomentum
G4bool decayInsideStrangeParticles()
Force the transformation of strange particles into a Lambda;.
ConservationBalance getConservationBalance(EventInfo const &theEventInfo, const G4bool afterRecoil) const
Compute charge, mass, energy and momentum balance.
void initializeParticles()
G4bool hasRemnant() const
Does the nucleus give a cascade remnant?
void updatePotentialEnergy(Particle *p) const
Update the particle potential energy.
NuclearPotential::INuclearPotential const * thePotential
Pointer to the NuclearPotential object.
G4double computeExcitationEnergy() const
Compute the current excitation energy.
G4double initialInternalEnergy
G4double theUniverseRadius
The radius of the universe.
void computeOneNucleonRecoilKinematics()
Compute the recoil kinematics for a 1-nucleon remnant.
virtual ~Nucleus()
G4bool decayOutgoingDeltas()
Force the decay of outgoing deltas.
G4bool decayOutgoingSigmaZero(G4double timeThreshold)
Force the decay of outgoing Neutral Sigma.
void setPotential(NuclearPotential::INuclearPotential const *const p)
Setter for thePotential.
void setDensity(NuclearDensity const *const d)
Setter for theDensity.
G4int getPDGCode() const
Set a PDG Code (MONTE CARLO PARTICLE NUMBERING)
void setPotentialEnergy(G4double v)
Set the particle potential energy.
G4int getS() const
Returns the strangeness number.
G4double getEmissionQValueCorrection(const G4int AParent, const G4int ZParent) const
Computes correction on the emission Q-value.
G4INCL::ThreeVector theMomentum
void setBiasCollisionVector(std::vector< G4int > BiasCollisionVector)
Set the vector list of biased vertices on the particle path.
G4double getPotentialEnergy() const
Get the particle potential energy.
void setMass(G4double mass)
G4int getZ() const
Returns the charge number.
G4double getKineticEnergy() const
Get the particle kinetic energy.
G4int theNKaon
The number of Kaons inside the nucleus (update during the cascade)
std::vector< G4int > getBiasCollisionVector() const
Get the vector list of biased vertices on the particle path.
void setEmissionTime(G4double t)
G4double adjustEnergyFromMomentum()
Recompute the energy to match the momentum.
static G4double getTotalBias()
General bias vector function.
const ThreeVector & adjustMomentumFromEnergy()
Rescale the momentum to match the total energy.
const G4INCL::ThreeVector & getMomentum() const
virtual void setMomentum(const G4INCL::ThreeVector &momentum)
virtual G4double getTableMass() const
Get the tabulated particle mass.
G4double getInvariantMass() const
Get the the particle invariant mass.
void setEnergy(G4double energy)
std::string print() const
G4double getMass() const
Get the cached particle mass.
void boost(const ThreeVector &aBoostVector)
void setTableMass()
Set the mass of the Particle to its table mass.
G4bool isDelta() const
Is it a Delta?
G4int getA() const
Returns the baryon number.
G4INCL::ThreeVector thePosition
ParticleList const & getOutgoingParticles() const
Definition: G4INCLStore.hh:223
void addToOutgoing(Particle *p)
add the particle to the outgoing particle list.
Definition: G4INCLStore.hh:190
void add(Particle *p)
Definition: G4INCLStore.cc:58
Book & getBook()
Definition: G4INCLStore.hh:259
void particleHasBeenDestroyed(Particle *const)
Definition: G4INCLStore.cc:181
void particleHasBeenUpdated(Particle *const)
Notify the Store about a particle update.
Definition: G4INCLStore.cc:127
void removeScheduledAvatars()
Remove avatars that have been scheduled.
Definition: G4INCLStore.cc:134
void particleHasBeenEjected(Particle *const)
Definition: G4INCLStore.cc:175
ParticleList const & getParticles() const
Definition: G4INCLStore.hh:253
void setY(G4double ay)
Set the y coordinate.
G4double theta() const
G4double getY() const
G4double getZ() const
void setZ(G4double az)
Set the z coordinate.
void setX(G4double ax)
Set the x coordinate.
G4double mag() const
G4double phi() const
G4double mag2() const
G4double getX() const
ParticleList decay(Cluster *const c)
Carries out a cluster decay.
G4double momentumInCM(Particle const *const p1, Particle const *const p2)
gives the momentum in the CM frame of two particles.
G4double toDegrees(G4double radians)
NuclearDensity const * createDensity(const G4int A, const G4int Z, const G4int S)
INuclearPotential const * createPotential(const PotentialType type, const G4int theA, const G4int theZ, const G4bool pionPotential)
Create an INuclearPotential object.
G4ThreadLocal NuclearMassFn getTableMass
Static pointer to the mass function for nuclei.
G4double getRealMass(const G4INCL::ParticleType t)
Get particle mass (in MeV/c^2)
void setNeutronSeparationEnergy(const G4double s)
Setter for protonSeparationEnergy.
const G4double effectiveNucleonMass
void setProtonSeparationEnergy(const G4double s)
Setter for protonSeparationEnergy.
G4double getWidth(const ParticleType t)
Get particle width (in s)
const G4double hc
[MeV*fm]
G4double shoot()
Definition: G4INCLRandom.cc:93
const G4int maxIterations
Maximum number of iterations for convergence.
ParticleList::const_iterator ParticleIter
@ SurfaceAvatarType
@ CollisionAvatarType
@ DecayAvatarType
@ ParticleBelowZeroFS
@ ParticleBelowFermiFS
G4bool pion(G4int ityp)
G4bool nucleon(G4int ityp)
Bool_t pionAbsorption
True if the event is a pion absorption.
Short_t S[maxSizeParticles]
Particle strangeness number.
Int_t nCollisionAvatars
Number of collision avatars.
Short_t origin[maxSizeParticles]
Origin of the particle.
Short_t At
Mass number of the target nucleus.
Short_t Zp
Charge number of the projectile nucleus.
Int_t nDecays
Number of accepted Delta decays.
Int_t projectileType
Projectile particle type.
Short_t nCascadeParticles
Number of cascade particles.
Short_t nRemnants
Number of remnants.
Float_t theta[maxSizeParticles]
Particle momentum polar angle [radians].
Short_t A[maxSizeParticles]
Particle mass number.
Float_t EKinRem[maxSizeRemnants]
Remnant kinetic energy [MeV].
Float_t firstCollisionSpectatorMomentum
Momentum of the spectator on the first collision (fm)
Float_t jzRem[maxSizeRemnants]
Remnant angular momentum, z component [ ].
Bool_t nucleonAbsorption
True if the event is a nucleon absorption.
Float_t emissionTime[maxSizeParticles]
Emission time [fm/c].
Float_t EStarRem[maxSizeRemnants]
Remnant excitation energy [MeV].
Short_t St
Strangeness number of the target nucleus.
Int_t nEnergyViolationInteraction
Number of attempted collisions/decays for which the energy-conservation algorithm failed to find a so...
Float_t phi[maxSizeParticles]
Particle momentum azimuthal angle [radians].
Short_t Ap
Mass number of the projectile nucleus.
Int_t nReflectionAvatars
Number of reflection avatars.
Float_t firstCollisionSpectatorPosition
Position of the spectator on the first collision (fm)
Short_t Z[maxSizeParticles]
Particle charge number.
Bool_t forcedCompoundNucleus
True if the event is a forced CN.
Float_t JRem[maxSizeRemnants]
Remnant spin [ ].
Float_t thetaRem[maxSizeRemnants]
Remnant momentum polar angle [radians].
std::vector< std::string > history
History of the particle.
Short_t Sp
Strangeness number of the projectile nucleus.
Float_t EKin[maxSizeParticles]
Particle kinetic energy [MeV].
Short_t nParticles
Number of particles in the final state.
Float_t jxRem[maxSizeRemnants]
Remnant angular momentum, x component [ ].
Int_t nBlockedDecays
Number of decays blocked by Pauli or CDPP.
Float_t px[maxSizeParticles]
Particle momentum, x component [MeV/c].
Float_t ParticleBias[maxSizeParticles]
Particle weight due to the bias.
Short_t SRem[maxSizeRemnants]
Remnant strangeness number.
Float_t pxRem[maxSizeRemnants]
Remnant momentum, x component [MeV/c].
Float_t pyRem[maxSizeRemnants]
Remnant momentum, y component [MeV/c].
Float_t firstCollisionTime
Time of the first collision [fm/c].
Short_t Zt
Charge number of the target nucleus.
Float_t phiRem[maxSizeRemnants]
Remnant momentum azimuthal angle [radians].
Float_t pzRem[maxSizeRemnants]
Remnant momentum, z component [MeV/c].
static G4ThreadLocal Int_t eventNumber
Number of the event.
Float_t pz[maxSizeParticles]
Particle momentum, z component [MeV/c].
Int_t nCollisions
Number of accepted two-body collisions.
Int_t PDGCode[maxSizeParticles]
PDG numbering of the particles.
Int_t nBlockedCollisions
Number of two-body collisions blocked by Pauli or CDPP.
Float_t jyRem[maxSizeRemnants]
Remnant angular momentum, y component [ ].
Float_t py[maxSizeParticles]
Particle momentum, y component [MeV/c].
Bool_t firstCollisionIsElastic
True if the first collision was elastic.
Short_t ARem[maxSizeRemnants]
Remnant mass number.
Short_t ZRem[maxSizeRemnants]
Remnant charge number.
Float_t firstCollisionXSec
Cross section of the first collision (mb)
Int_t nDecayAvatars
Number of decay avatars.
Struct for conservation laws.