Geant4 11.2.2
Toolkit for the simulation of the passage of particles through matter
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G4LightIonQMDMeanField.cc
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25//
26// 081120 Add Update by T. Koi
27//
28// 230307 Skyrme-QMD parameters added by Y-H. Sato and A. Haga
29// 230307 "CalDensityProfile" and "CalChargeDensityProfile" functions added by Y-H. Sato and A. Haga
30// 230307 "GetSingleEnergy" and "GetTotalEnergy" functions added by Y-H. Sato and A. Haga
31
32#include <map>
33#include <algorithm>
34#include <numeric>
35
36#include <cmath>
37#include <CLHEP/Random/Stat.h>
38
39#include "G4LightIonQMDMeanField.hh"
40#include "G4LightIonQMDParameters.hh"
41#include "G4Exp.hh"
42#include "G4Pow.hh"
43#include "G4PhysicalConstants.hh"
44#include "Randomize.hh"
45
46G4LightIonQMDMeanField::G4LightIonQMDMeanField()
47{
48 G4LightIonQMDParameters* parameters = G4LightIonQMDParameters::GetInstance();
49 wl = parameters->Get_wl();
50 cl = parameters->Get_cl();
51 rho0 = parameters->Get_rho0();
52 hbc = parameters->Get_hbc();
53 gamm = parameters->Get_gamm();
54 eta = parameters->Get_eta(); // Skyrme-QMD
55 kappas = parameters->Get_kappas(); // Skyrme-QMD
56
57 cpw = parameters->Get_cpw();
58 cph = parameters->Get_cph();
59 cpc = parameters->Get_cpc();
60
61 c0 = parameters->Get_c0();
62 c3 = parameters->Get_c3();
63 cs = parameters->Get_cs();
64 g0 = parameters->Get_g0(); // Skyrme-QMD
65 g0iso = parameters->Get_g0iso(); // Skyrme-QMD
66 gtau0 = parameters->Get_gtau0(); // Skyrme-QMD
67
68 // distance
69 c0w = 1.0/4.0/wl;
70 c0sw = std::sqrt( c0w );
71 clw = 2.0 / std::sqrt ( 4.0 * pi * wl );
72
73 // graduate
74 c0g = - c0 / ( 2.0 * wl );
75 c3g = - c3 / ( 4.0 * wl ) * gamm;
76 csg = - cs / ( 2.0 * wl );
77 pag = gamm - 1;
78 pag_tau = eta - 1; // Skyrme-QMD
79 cg0 = - g0 / ( 2.0 * wl ); // Skyrme-QMD
80 cgtau0 = - gtau0 / ( 4.0 * wl ) * eta; // Skyrme-QMD
81
82 system = nullptr; // will be set through SetSystem method
83}
84
85void G4LightIonQMDMeanField::SetSystem ( G4QMDSystem* aSystem )
86{
87 system = aSystem;
88
89 G4int n = system->GetTotalNumberOfParticipant();
90
91 pp2.clear();
92 rr2.clear();
93 rbij.clear();
94 rha.clear();
95 rhe.clear();
96 rhc.clear();
97
98 rr2.resize( n );
99 pp2.resize( n );
100 rbij.resize( n );
101 rha.resize( n );
102 rhe.resize( n );
103 rhc.resize( n );
104
105 for ( G4int i = 0 ; i < n ; ++i )
106 {
107 rr2[i].resize( n );
108 pp2[i].resize( n );
109 rbij[i].resize( n );
110 rha[i].resize( n );
111 rhe[i].resize( n );
112 rhc[i].resize( n );
113 }
114
115 ffr.clear();
116 ffp.clear();
117 rh3d.clear();
118 rh3d_tau.clear(); // Skyrme-QMD
119
120 ffr.resize( n );
121 ffp.resize( n );
122 rh3d.resize( n );
123 rh3d_tau.resize( n ); // Skyrme-QMD
124
125 Cal2BodyQuantities();
126}
127
128void G4LightIonQMDMeanField::SetNucleus ( G4LightIonQMDNucleus* aNucleus )
129{
130 SetSystem( aNucleus );
131
132 G4double totalPotential = GetTotalPotential();
133 aNucleus->SetTotalPotential( totalPotential );
134 aNucleus->CalEnergyAndAngularMomentumInCM();
135}
136
137void G4LightIonQMDMeanField::Cal2BodyQuantities()
138{
139 if ( system->GetTotalNumberOfParticipant() < 2 ) { return; }
140
141 for ( G4int j = 1 ; j < system->GetTotalNumberOfParticipant() ; ++j )
142 {
143 G4ThreeVector rj = system->GetParticipant( j )->GetPosition();
144 G4LorentzVector p4j = system->GetParticipant( j )->Get4Momentum();
145
146 for ( G4int i = 0 ; i < j ; ++i )
147 {
148 G4ThreeVector ri = system->GetParticipant( i )->GetPosition();
149 G4LorentzVector p4i = system->GetParticipant( i )->Get4Momentum();
150
151 G4ThreeVector rij = ri - rj;
152 G4ThreeVector pij = (p4i - p4j).v();
153 G4LorentzVector p4ij = p4i - p4j;
154 G4ThreeVector bij = ( p4i + p4j ).boostVector();
155 G4double gammaij = ( p4i + p4j ).gamma();
156
157 G4double eij = ( p4i + p4j ).e();
158
159 G4double rbrb = rij*bij;
160 G4double rij2 = rij*rij;
161 G4double pij2 = pij*pij;
162
163 rbrb = irelcr * rbrb;
164 G4double gamma2_ij = gammaij*gammaij;
165
166 rr2[i][j] = rij2 + gamma2_ij * rbrb*rbrb;
167 rr2[j][i] = rr2[i][j];
168
169 rbij[i][j] = gamma2_ij * rbrb;
170 rbij[j][i] = - rbij[i][j];
171
172 pp2[i][j] = pij2
173 + irelcr * ( - G4Pow::GetInstance()->powN ( p4i.e() - p4j.e() , 2 )
174 + gamma2_ij * G4Pow::GetInstance()->powN ( ( ( p4i.m2() - p4j.m2() ) / eij ) , 2 ) );
175
176
177 pp2[j][i] = pp2[i][j];
178
179 // Gauss term
180
181 G4double expa1 = - rr2[i][j] * c0w;
182
183 G4double rh1;
184 if ( expa1 > epsx )
185 {
186 rh1 = G4Exp( expa1 );
187 }
188 else
189 {
190 rh1 = 0.0;
191 }
192
193 G4int ibry = system->GetParticipant(i)->GetBaryonNumber();
194 G4int jbry = system->GetParticipant(j)->GetBaryonNumber();
195
196 rha[i][j] = ibry*jbry*rh1;
197 rha[j][i] = rha[i][j];
198
199 // Coulomb terms
200
201 G4double rrs2 = rr2[i][j] + epscl;
202 G4double rrs = std::sqrt ( rrs2 );
203
204 G4int icharge = system->GetParticipant(i)->GetChargeInUnitOfEplus();
205 G4int jcharge = system->GetParticipant(j)->GetChargeInUnitOfEplus();
206
207 G4double xerf = 0.0;
208 // T. K. add this protection. 5.8 is good enough for double
209 if ( rrs*c0sw < 5.8 )
210 {
211#if defined WIN32-VC
212 xerf = CLHEP::HepStat::erf ( rrs*c0sw );
213#else
214 xerf = std::erf ( rrs*c0sw );
215#endif
216 }
217 else
218 {
219 xerf = 1.0;
220 }
221
222 G4double erfij = xerf/rrs;
223
224 rhe[i][j] = icharge*jcharge * erfij;
225 rhe[j][i] = rhe[i][j];
226 rhc[i][j] = icharge*jcharge * ( - erfij + clw * rh1 ) / rrs2;
227 rhc[j][i] = rhc[i][j];
228 } // i
229 } // j
230}
231
232void G4LightIonQMDMeanField::Cal2BodyQuantities( G4int i )
233{
234 G4ThreeVector ri = system->GetParticipant( i )->GetPosition();
235 G4LorentzVector p4i = system->GetParticipant( i )->Get4Momentum();
236
237 for ( G4int j = 0 ; j < system->GetTotalNumberOfParticipant() ; ++j )
238 {
239 if ( j == i ) { continue; }
240
241 G4ThreeVector rj = system->GetParticipant( j )->GetPosition();
242 G4LorentzVector p4j = system->GetParticipant( j )->Get4Momentum();
243
244 G4ThreeVector rij = ri - rj;
245 G4ThreeVector pij = (p4i - p4j).v();
246 G4LorentzVector p4ij = p4i - p4j;
247 G4ThreeVector bij = ( p4i + p4j ).boostVector();
248 G4double gammaij = ( p4i + p4j ).gamma();
249
250 G4double eij = ( p4i + p4j ).e();
251
252 G4double rbrb = rij*bij;
253 G4double rij2 = rij*rij;
254 G4double pij2 = pij*pij;
255
256 rbrb = irelcr * rbrb;
257 G4double gamma2_ij = gammaij*gammaij;
258
259 rr2[i][j] = rij2 + gamma2_ij * rbrb*rbrb;
260 rr2[j][i] = rr2[i][j];
261
262 rbij[i][j] = gamma2_ij * rbrb;
263 rbij[j][i] = - rbij[i][j];
264
265 pp2[i][j] = pij2
266 + irelcr * ( - G4Pow::GetInstance()->powN ( p4i.e() - p4j.e() , 2 )
267 + gamma2_ij * G4Pow::GetInstance()->powN ( ( ( p4i.m2() - p4j.m2() ) / eij ) , 2 ) );
268
269 pp2[j][i] = pp2[i][j];
270
271 // Gauss term
272
273 G4double expa1 = - rr2[i][j] * c0w;
274
275 G4double rh1;
276 if ( expa1 > epsx )
277 {
278 rh1 = G4Exp( expa1 );
279 }
280 else
281 {
282 rh1 = 0.0;
283 }
284
285 G4int ibry = system->GetParticipant(i)->GetBaryonNumber();
286 G4int jbry = system->GetParticipant(j)->GetBaryonNumber();
287
288 rha[i][j] = ibry*jbry*rh1;
289 rha[j][i] = rha[i][j];
290
291 // Coulomb terms
292
293 G4double rrs2 = rr2[i][j] + epscl;
294 G4double rrs = std::sqrt ( rrs2 );
295
296 G4int icharge = system->GetParticipant(i)->GetChargeInUnitOfEplus();
297 G4int jcharge = system->GetParticipant(j)->GetChargeInUnitOfEplus();
298
299 G4double xerf = 0.0;
300 // T. K. add this protection. 5.8 is good enough for double
301 if ( rrs*c0sw < 5.8 )
302 {
303#if defined WIN32-VC
304 xerf = CLHEP::HepStat::erf ( rrs*c0sw );
305#else
306 xerf = std::erf ( rrs*c0sw );
307#endif
308 }
309 else
310 {
311 xerf = 1.0;
312 }
313
314 G4double erfij = xerf/rrs;
315
316 rhe[i][j] = icharge*jcharge * erfij;
317 rhe[j][i] = rhe[i][j];
318 rhc[i][j] = icharge*jcharge * ( - erfij + clw * rh1 ) / rrs2;
319 rhc[j][i] = rhc[i][j];
320 }
321}
322
323void G4LightIonQMDMeanField::CalGraduate()
324{
325 ffr.resize( system->GetTotalNumberOfParticipant() );
326 ffp.resize( system->GetTotalNumberOfParticipant() );
327 rh3d.resize( system->GetTotalNumberOfParticipant() );
328 rh3d_tau.resize( system->GetTotalNumberOfParticipant() ); // Skyrme-QMD
329
330 for ( G4int i = 0 ; i < system->GetTotalNumberOfParticipant() ; ++i )
331 {
332 G4double rho3 = 0.0;
333 for ( G4int j = 0 ; j < system->GetTotalNumberOfParticipant() ; ++j )
334 {
335 rho3 += rha[j][i];
336 }
337 rh3d[i] = G4Pow::GetInstance()->powA ( rho3 , pag );
338 rh3d_tau[i] = G4Pow::GetInstance()->powA ( rho3 , pag_tau ); // Skyrme-QMD
339 }
340
341 for ( G4int i = 0 ; i < system->GetTotalNumberOfParticipant() ; ++i )
342 {
343 G4ThreeVector ri = system->GetParticipant( i )->GetPosition();
344 G4LorentzVector p4i = system->GetParticipant( i )->Get4Momentum();
345
346 G4ThreeVector betai = p4i.v()/p4i.e();
347
348 // R-JQMD
349 G4double Vi = GetPotential( i );
350 G4double p_zero = std::sqrt( p4i.e()*p4i.e() + 2*p4i.m()*Vi);
351 G4ThreeVector betai_R = p4i.v()/p_zero;
352 G4double mi_R = p4i.m()/p_zero;
353
354 ffr[i] = betai_R;
355 ffp[i] = G4ThreeVector( 0.0 );
356
357 for ( G4int j = 0 ; j < system->GetTotalNumberOfParticipant() ; ++j )
358 {
359 G4ThreeVector rj = system->GetParticipant( j )->GetPosition();
360 G4LorentzVector p4j = system->GetParticipant( j )->Get4Momentum();
361
362 G4double eij = p4i.e() + p4j.e();
363
364 G4int icharge = system->GetParticipant(i)->GetChargeInUnitOfEplus();
365 G4int jcharge = system->GetParticipant(j)->GetChargeInUnitOfEplus();
366
367 G4int inuc = system->GetParticipant(i)->GetNuc();
368 G4int jnuc = system->GetParticipant(j)->GetNuc();
369
370 G4double fsij = 3.0/(2*wl) - rr2[j][i]/(2*wl)/(2*wl); // Add for Skyrme-QMD
371
372 G4double ccpp = c0g * rha[j][i]
373 + c3g * rha[j][i] * ( rh3d[j] + rh3d[i] )
374 + cg0 * rha[j][i]/wl
375 + cg0 * rha[j][i] * fsij
376 + cgtau0 * rha[j][i] * ( rh3d_tau[j] + rh3d_tau[i] )
377 + csg * rha[j][i] * jnuc * inuc
378 * ( 1. - 2. * std::abs( jcharge - icharge ) )
379 * (1. - kappas * fsij + kappas / wl)
380 + cl * rhc[j][i];
381
382 ccpp *= mi_R;
383
384 G4double grbb = - rbij[j][i];
385 G4double ccrr = grbb * ccpp / eij;
386
387 G4ThreeVector rij = ri - rj;
388 G4ThreeVector betaij = ( p4i + p4j ).v()/eij;
389 G4ThreeVector cij = betaij - betai;
390
391 ffr[i] = ffr[i] + 2*ccrr* ( rij + grbb*cij );
392 ffp[i] = ffp[i] - 2*ccpp* ( rij + grbb*betaij );
393 }
394 }
395}
396
397G4double G4LightIonQMDMeanField::GetPotential( G4int i )
398{
399 G4int n = system->GetTotalNumberOfParticipant();
400
401 G4double rhoa = 0.0;
402 G4double rho3 = 0.0;
403 G4double fsij_rhoa = 0.0; // Skyrme-QMD
404 //G4double fsij_rhos = 0.0; // Skyrme-QMD
405 G4double rho3_tau = 0.0; // Skyrme-QMD
406 G4double rhos = 0.0;
407 G4double rhoc = 0.0;
408
409 G4int icharge = system->GetParticipant(i)->GetChargeInUnitOfEplus();
410 G4int inuc = system->GetParticipant(i)->GetNuc();
411
412 for ( G4int j = 0 ; j < n ; ++j )
413 {
414 G4int jcharge = system->GetParticipant(j)->GetChargeInUnitOfEplus();
415 G4int jnuc = system->GetParticipant(j)->GetNuc();
416 G4double fsij = 3.0/(2*wl) - rr2[j][i]/(2*wl)/(2*wl); // Add for Skyrme-QMD
417
418 rhoa += rha[j][i];
419 fsij_rhoa += fsij * rha[j][i]; // Skyrme-QMD
420 rhoc += rhe[j][i];
421 rhos += rha[j][i] * jnuc * inuc
422 * ( 1. - 2. * std::abs( jcharge - icharge ) ) // Skyrme-QMD
423 * (1. - kappas * fsij); // Skyrme-QMD
424 }
425
426 rho3 = G4Pow::GetInstance()->powA ( rhoa , gamm );
427 rho3_tau = G4Pow::GetInstance()->powA ( rhoa , eta );
428
429 G4double potential = c0 * rhoa
430 + c3 * rho3
431 + g0 * fsij_rhoa // Skyrme-QMD
432 //+ g0iso * fsij_rhos // Skyrme-QMD
433 + gtau0 * rho3_tau // Skyrme-QMD
434 + cs * rhos
435 + cl * rhoc;
436 return potential;
437}
438
439G4double G4LightIonQMDMeanField::GetTotalPotential()
440{
441 G4int n = system->GetTotalNumberOfParticipant();
442
443 std::vector < G4double > rhoa ( n , 0.0 );
444 std::vector < G4double > rho3 ( n , 0.0 );
445 std::vector < G4double > rho3_tau ( n , 0.0 ); // Skyrme-QMD
446 //std::vector < G4double > fsij_rhos ( n , 0.0 ); // Skyrme-QMD
447 std::vector < G4double > fsij_rhoa ( n , 0.0 ); // Skyrme-QMD
448 std::vector < G4double > rhos ( n , 0.0 );
449 std::vector < G4double > rhoc ( n , 0.0 );
450
451 for ( G4int i = 0 ; i < n ; ++i )
452 {
453 G4int icharge = system->GetParticipant(i)->GetChargeInUnitOfEplus();
454 G4int inuc = system->GetParticipant(i)->GetNuc();
455
456 for ( G4int j = 0 ; j < n ; ++j )
457 {
458 G4int jcharge = system->GetParticipant(j)->GetChargeInUnitOfEplus();
459 G4int jnuc = system->GetParticipant(j)->GetNuc();
460 G4double fsij = 3.0/(2*wl) - rr2[j][i]/(2*wl)/(2*wl); // Add for Skyrme-QMD
461
462 rhoa[i] += rha[j][i];
463 fsij_rhoa[i] += fsij * rha[j][i]; // Skyrme-QMD
464 rhoc[i] += rhe[j][i];
465 rhos[i] += rha[j][i] * jnuc * inuc
466 //* ( 1 - 2 * std::abs ( jcharge - icharge ) );
467 * ( 1. - 2. * std::abs( jcharge - icharge ) ) // Skyrme-QMD
468 * (1. - kappas * fsij); // Skyrme-QMD
469 //fsij_rhos[i] += fsij * rha[j][i] * jnuc * inuc
470 //* ( 1. - 2. * std::abs( jcharge - icharge ) ) // Skyrme-QMD
471 //* (1. - kappas * fsij); // Skyrme-QMD
472 }
473
474 rho3[i] = G4Pow::GetInstance()->powA ( rhoa[i] , gamm );
475 rho3_tau[i] = G4Pow::GetInstance()->powA ( rhoa[i] , eta );
476 }
477
478 G4double potential = c0 * std::accumulate( rhoa.cbegin() , rhoa.cend() , 0.0 )
479 + c3 * std::accumulate( rho3.cbegin() , rho3.cend() , 0.0 )
480 + g0 * std::accumulate( fsij_rhoa.cbegin() , fsij_rhoa.cend() , 0.0 )
481 //+ g0iso * std::accumulate( fsij_rhos.cbegin() , fsij_rhos.cend() , 0.0 )
482 + gtau0 * std::accumulate( rho3_tau.cbegin() , rho3_tau.cend() , 0.0 )
483 + cs * std::accumulate( rhos.cbegin() , rhos.cend() , 0.0 )
484 + cl * std::accumulate( rhoc.cbegin() , rhoc.cend() , 0.0 );
485
486 return potential;
487}
488
489G4double G4LightIonQMDMeanField::GetSingleEnergy( G4int j )
490{
491 G4LorentzVector p4j = system->GetParticipant( j )->Get4Momentum();
492 G4double emass = p4j.m();
493 G4double ekinal2 = p4j.e()*p4j.e();
494 G4double esingle = std::sqrt(ekinal2 + 2*emass*GetPotential(j));
495 return esingle;
496}
497
498G4double G4LightIonQMDMeanField::GetTotalEnergy()
499{
500
501 G4int n = system->GetTotalNumberOfParticipant();
502 G4double etotal = 0.0;
503 for ( int j = 0 ; j < n ; j++ )
504 {
505 G4LorentzVector p4j = system->GetParticipant( j )->Get4Momentum();
506 G4double emass = p4j.m();
507 G4double ekinal2 = p4j.e()*p4j.e();
508 etotal += std::sqrt(ekinal2 + 2*emass*GetPotential(j));
509 }
510 return etotal;
511
512}
513
514G4double G4LightIonQMDMeanField::calPauliBlockingFactor( G4int i )
515{
516 // i is supposed beyond total number of Participant()
517
518 G4double pf = 0.0;
519 G4int icharge = system->GetParticipant(i)->GetChargeInUnitOfEplus();
520
521 for ( G4int j = 0 ; j < system->GetTotalNumberOfParticipant() ; ++j )
522 {
523 G4int jcharge = system->GetParticipant(j)->GetChargeInUnitOfEplus();
524 G4int jnuc = system->GetParticipant(j)->GetNuc();
525
526 if ( jcharge == icharge && jnuc == 1 )
527 {
528 G4double expa = -rr2[i][j]*cpw;
529 if ( expa > epsx )
530 {
531 expa = expa - pp2[i][j]*cph;
532 if ( expa > epsx )
533 {
534 pf = pf + G4Exp ( expa );
535 }
536 }
537 }
538 }
539
540 return ( pf - 1.0 ) * cpc;
541}
542
543G4bool G4LightIonQMDMeanField::IsPauliBlocked( G4int i )
544{
545 G4bool result = false;
546
547 if ( system->GetParticipant( i )->GetNuc() == 1 )
548 {
549 G4double pf = calPauliBlockingFactor( i );
550 G4double rand = G4UniformRand();
551 if ( pf > rand ) { result = true; }
552 }
553
554 return result;
555}
556
557void G4LightIonQMDMeanField::DoPropagation( G4double dt )
558{
559 G4double cc2 = 1.0;
560 G4double cc1 = 1.0 - cc2;
561 G4double cc3 = 1.0 / 2.0 / cc2;
562
563 G4double dt3 = dt * cc3;
564 G4double dt1 = dt * ( cc1 - cc3 );
565 G4double dt2 = dt * cc2;
566
567 CalGraduate();
568
569 G4int n = system->GetTotalNumberOfParticipant();
570
571 // 1st Step
572
573 std::vector< G4ThreeVector > f0r, f0p;
574 f0r.resize( n );
575 f0p.resize( n );
576
577 for ( G4int i = 0 ; i < n ; ++i )
578 {
579 G4ThreeVector ri = system->GetParticipant( i )->GetPosition();
580 G4ThreeVector p3i = system->GetParticipant( i )->GetMomentum();
581
582 ri += dt3* ffr[i];
583 p3i += dt3* ffp[i];
584
585 f0r[i] = ffr[i];
586 f0p[i] = ffp[i];
587
588 system->GetParticipant( i )->SetPosition( ri );
589 system->GetParticipant( i )->SetMomentum( p3i );
590
591 // we do not need set total momentum by ourselvs
592 }
593
594 // 2nd Step
595
596 Cal2BodyQuantities();
597 CalGraduate();
598
599 for ( G4int i = 0 ; i < n ; ++i )
600 {
601 G4ThreeVector ri = system->GetParticipant( i )->GetPosition();
602 G4ThreeVector p3i = system->GetParticipant( i )->GetMomentum();
603
604 ri += dt1* f0r[i] + dt2* ffr[i];
605 p3i += dt1* f0p[i] + dt2* ffp[i];
606
607 system->GetParticipant( i )->SetPosition( ri );
608 system->GetParticipant( i )->SetMomentum( p3i );
609
610 // we do not need set total momentum by ourselvs
611 }
612
613 Cal2BodyQuantities();
614}
615
616std::vector< G4LightIonQMDNucleus* > G4LightIonQMDMeanField::DoClusterJudgment()
617{
618 Cal2BodyQuantities();
619
620 G4double cpf2 = G4Pow::GetInstance()->A23 ( 1.5 * pi*pi * G4Pow::GetInstance()->powA ( 4.0 * pi * wl , -1.5 ) ) * hbc * hbc;
621 G4double rcc2 = rclds*rclds;
622
623 G4int n = system->GetTotalNumberOfParticipant();
624 std::vector < G4double > rhoa;
625 rhoa.resize ( n );
626
627 for ( G4int i = 0 ; i < n ; ++i )
628 {
629 rhoa[i] = 0.0;
630
631 if ( system->GetParticipant( i )->GetBaryonNumber() == 1 )
632 {
633 for ( G4int j = 0 ; j < n ; ++j )
634 {
635 if ( system->GetParticipant( j )->GetBaryonNumber() == 1 )
636 rhoa[i] += rha[i][j];
637 }
638 }
639
640 rhoa[i] = G4Pow::GetInstance()->A13 ( rhoa[i] + 1 );
641 }
642
643 // identification of the cluster
644 std::vector < G4bool > is_already_belong_some_cluster;
645
646 // cluster_id participant_id
647 std::multimap < G4int , G4int > comb_map;
648 std::multimap < G4int , G4int > assign_map;
649 assign_map.clear();
650
651 std::vector < G4int > mascl;
652 std::vector < G4int > num;
653 mascl.resize ( n );
654 num.resize ( n );
655 is_already_belong_some_cluster.resize ( n );
656
657 std::vector < G4int > is_assigned_to ( n , -1 );
658 std::multimap < G4int , G4int > clusters;
659
660 for ( G4int i = 0 ; i < n ; ++i )
661 {
662 mascl[i] = 1;
663 num[i] = 1;
664 is_already_belong_some_cluster[i] = false;
665 }
666
667 G4int ichek = 1;
668 G4int id = 0;
669 G4int cluster_id = -1;
670 for ( G4int i = 0 ; i < n-1 ; ++i )
671 {
672 G4bool hasThisCompany = false;
673
674 if ( system->GetParticipant( i )->GetBaryonNumber() == 1 )
675 {
676 G4int j1 = i + 1;
677 for ( G4int j = j1 ; j < n ; ++j )
678 {
679 std::vector < G4int > cluster_participants;
680 if ( system->GetParticipant( j )->GetBaryonNumber() == 1 )
681 {
682 G4double rdist2 = rr2[ i ][ j ];
683 G4double pdist2 = pp2[ i ][ j ];
684 G4double pcc2 = cpf2
685 * ( rhoa[ i ] + rhoa[ j ] )
686 * ( rhoa[ i ] + rhoa[ j ] );
687
688 // Check phase space: close enough?
689 if ( rdist2 < rcc2 && pdist2 < pcc2 )
690 {
691 if ( is_assigned_to [ j ] == -1 )
692 {
693 if ( is_assigned_to [ i ] == -1 )
694 {
695 if ( clusters.size() != 0 )
696 {
697 id = clusters.rbegin()->first + 1;
698 }
699 else
700 {
701 id = 0;
702 }
703 clusters.insert ( std::multimap<G4int,G4int>::value_type ( id , i ) );
704 is_assigned_to [ i ] = id;
705 clusters.insert ( std::multimap<G4int,G4int>::value_type ( id , j ) );
706 is_assigned_to [ j ] = id;
707 }
708 else
709 {
710 clusters.insert ( std::multimap<G4int,G4int>::value_type ( is_assigned_to [ i ] , j ) );
711 is_assigned_to [ j ] = is_assigned_to [ i ];
712 }
713 }
714 else
715 {
716 // j is already belong to some cluster
717 if ( is_assigned_to [ i ] == -1 )
718 {
719 clusters.insert ( std::multimap<G4int,G4int>::value_type ( is_assigned_to [ j ] , i ) );
720 is_assigned_to [ i ] = is_assigned_to [ j ];
721 }
722 else
723 {
724 // i has companion
725 if ( is_assigned_to [ i ] != is_assigned_to [ j ] )
726 {
727 // move companions to the cluster
728 std::multimap< G4int , G4int > clusters_tmp;
729 G4int target_cluster_id;
730 if ( is_assigned_to [ i ] > is_assigned_to [ j ] )
731 {
732 target_cluster_id = is_assigned_to [ i ];
733 }
734 else
735 {
736 target_cluster_id = is_assigned_to [ j ];
737 }
738 for ( auto it = clusters.cbegin() ; it != clusters.cend() ; ++it )
739 {
740 if ( it->first == target_cluster_id )
741 {
742 is_assigned_to [ it->second ] = is_assigned_to [ j ];
743 clusters_tmp.insert ( std::multimap<G4int,G4int>::value_type ( is_assigned_to [ j ] , it->second ) );
744 }
745 else
746 {
747 clusters_tmp.insert ( std::multimap<G4int,G4int>::value_type ( it->first , it->second ) );
748 }
749 }
750 clusters = clusters_tmp;
751 }
752 }
753 }
754
755 comb_map.insert( std::multimap<G4int,G4int>::value_type ( i , j ) );
756 cluster_participants.push_back ( j );
757
758 if ( assign_map.find( cluster_id ) == assign_map.end() )
759 {
760 is_already_belong_some_cluster[i] = true;
761 assign_map.insert ( std::multimap<G4int,G4int>::value_type ( cluster_id , i ) );
762 hasThisCompany = true;
763 }
764 assign_map.insert ( std::multimap<G4int,G4int>::value_type ( cluster_id , j ) );
765 is_already_belong_some_cluster[j] = true;
766 }
767
768 if ( ichek == i )
769 {
770 ++ichek;
771 }
772 }
773 }
774 }
775 if ( hasThisCompany == true ) { ++cluster_id; }
776 }
777
778 // sort
779 // Heavy cluster comes first
780 // size cluster_id
781 std::multimap< G4int , G4int > sorted_cluster_map;
782 for ( G4int i = 0 ; i <= id ; ++i ) // << "<=" because id is highest cluster nubmer.
783 {
784 sorted_cluster_map.insert ( std::multimap<G4int,G4int>::value_type ( (G4int) clusters.count( i ) , i ) );
785 }
786
787 // create nucleus from divided clusters
788 std::vector < G4LightIonQMDNucleus* > result;
789 for ( auto it = sorted_cluster_map.crbegin(); it != sorted_cluster_map.crend(); ++it )
790 {
791 if ( it->first != 0 )
792 {
793 G4LightIonQMDNucleus* nucleus = new G4LightIonQMDNucleus();
794 for ( auto itt = clusters.cbegin(); itt != clusters.cend(); ++itt )
795 {
796 if ( it->second == itt->first )
797 {
798 nucleus->SetParticipant( system->GetParticipant ( itt->second ) );
799 }
800 }
801 result.push_back( nucleus );
802 }
803 }
804
805 // delete participants from current system
806 for ( auto it = result.cbegin(); it != result.cend(); ++it )
807 {
808 system->SubtractSystem ( *it );
809 }
810
811 return result;
812}
813
814void G4LightIonQMDMeanField::Update()
815{
816 SetSystem( system );
817}
G4Exp
G4double G4Exp(G4double initial_x)
Exponential Function double precision.
Definition G4Exp.hh:180
G4ThreeVector
CLHEP::Hep3Vector G4ThreeVector
Definition G4ThreeVector.hh:36
G4double
double G4double
Definition G4Types.hh:83
G4bool
bool G4bool
Definition G4Types.hh:86
G4int
int G4int
Definition G4Types.hh:85
G4UniformRand
#define G4UniformRand()
Definition Randomize.hh:52
CLHEP::HepLorentzVector::v
Hep3Vector v() const
CLHEP::HepStat::erf
static double erf(double x)
Definition flatToGaussian.cc:268
G4LightIonQMDMeanField::SetNucleus
void SetNucleus(G4LightIonQMDNucleus *aSystem)
Definition G4LightIonQMDMeanField.cc:128
G4LightIonQMDMeanField::SetSystem
void SetSystem(G4QMDSystem *aSystem)
Definition G4LightIonQMDMeanField.cc:85
G4LightIonQMDMeanField::DoClusterJudgment
std::vector< G4LightIonQMDNucleus * > DoClusterJudgment()
Definition G4LightIonQMDMeanField.cc:616
G4LightIonQMDNucleus::SetTotalPotential
void SetTotalPotential(G4double x)
Definition G4LightIonQMDNucleus.hh:63
G4LightIonQMDParameters::GetInstance
static G4LightIonQMDParameters * GetInstance()
Definition G4LightIonQMDParameters.hh:50
G4Pow::GetInstance
static G4Pow * GetInstance()
Definition G4Pow.cc:41
G4Pow::A13
G4double A13(G4double A) const
Definition G4Pow.cc:116
G4Pow::powN
G4double powN(G4double x, G4int n) const
Definition G4Pow.cc:162
G4Pow::powA
G4double powA(G4double A, G4double y) const
Definition G4Pow.hh:230
G4Pow::A23
G4double A23(G4double A) const
Definition G4Pow.hh:131
G4QMDParticipant::GetPosition
G4ThreeVector GetPosition()
Definition G4QMDParticipant.hh:59
G4QMDParticipant::SetPosition
void SetPosition(G4ThreeVector r)
Definition G4QMDParticipant.hh:58
G4QMDParticipant::Get4Momentum
G4LorentzVector Get4Momentum()
Definition G4QMDParticipant.cc:50
G4QMDParticipant::GetMomentum
G4ThreeVector GetMomentum()
Definition G4QMDParticipant.hh:62
G4QMDParticipant::SetMomentum
void SetMomentum(G4ThreeVector p)
Definition G4QMDParticipant.hh:61
G4QMDSystem::GetParticipant
G4QMDParticipant * GetParticipant(G4int i)
Definition G4QMDSystem.hh:83
G4QMDSystem::SubtractSystem
void SubtractSystem(G4QMDSystem *)
Definition G4QMDSystem.cc:59
G4QMDSystem::GetTotalNumberOfParticipant
G4int GetTotalNumberOfParticipant()
Definition G4QMDSystem.hh:78
G4QMDSystem::SetParticipant
void SetParticipant(G4QMDParticipant *particle)
Definition G4QMDSystem.hh:52