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[u/mrichter/AliRoot.git] / TTherminator / Therminator / Parser.cxx
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2e967919 1/******************************************************************************
2 * T H E R M I N A T O R *
3 * THERMal heavy-IoN generATOR *
4 * version 1.0 *
5 * *
6 * Authors of the model: Wojciech Broniowski, Wojciech.Broniowski@ifj.edu.pl, *
7 * Wojciech Florkowski, Wojciech.Florkowski@ifj.edu.pl *
8 * Authors of the code: Adam Kisiel, kisiel@if.pw.edu.pl *
9 * Tomasz Taluc, ttaluc@if.pw.edu.pl *
10 * Code designers: Adam Kisiel, Tomasz Taluc, Wojciech Broniowski, *
11 * Wojciech Florkowski *
12 * *
13 * For the detailed description of the program and furhter references *
14 * to the description of the model plesase refer to: nucl-th/0504047, *
15 * accessibile at: http://www.arxiv.org/nucl-th/0504047 *
16 * *
17 * Homepage: http://hirg.if.pw.edu.pl/en/therminator/ *
18 * *
19 * This code can be freely used and redistributed. However if you decide to *
20 * make modifications to the code, please contact the authors, especially *
21 * if you plan to publish the results obtained with such modified code. *
22 * Any publication of results obtained using this code must include the *
23 * reference to nucl-th/0504047 and the published version of it, when *
24 * available. *
25 * *
26 *****************************************************************************/
27#include <TMath.h>
28#include "THGlobal.h"
29#include "ReadPar.h"
30#include "Parser.h"
31#include "DecayChannel.h"
32#include <sstream>
f8777da0 33#include <cstring>
2e967919 34
35extern ReadPar *sRPInstance;
36
37const double factorials[7] = {1.0, 1.0, 2.0, 6.0, 24.0, 120.0, 720.0 };
38
39Parser::Parser(ParticleDB *aDB)
40{
41 mDB = aDB;
42 ReadParameters();
43}
44
45Parser::~Parser()
46{
47}
48
49int Parser::check(char *a,char *b)
50{
51 int tIter3=0;
52
53 while(a[tIter3]!='\0')
54 {
55 if(a[tIter3]!=b[tIter3]) return 0;
56 tIter3++;
57 }
58 return 1;
59}
60
61int Parser::GetParticleCount()
62{
63 return mParticleCount;
64}
65
66char * Parser::GetParticleName(int i)
67{
68 return mNameBuffer[i];
69}
70
71double Parser::GetParticleMass(int i)
72{
73 return mMassBuffer[i];
74}
75
76double Parser::GetParticleGamma(int i)
77{
78 return mGammaBuffer[i];
79}
80
81double Parser::GetParticleSpin(int i)
82{
83 return mSpinBuffer[i];
84}
85
86int Parser::GetParticleBarionN(int i)
87{
88 return mBarionBuffer[i];
89}
90
91int Parser::GetParticleStrangeN(int i)
92{
93 return mStrangeBuffer[i];
94}
95
96double Parser::GetParticleI3(int i)
97{
98 return mI3Buffer[i];
99}
100
101int Parser::GetParticleDecayChannelCount(int i,int j)
102{
103 return mDecayBuffer[i][j];
104}
105
106int Parser::GetParticleNumber(int i)
107{
108 return mTypeCountBuffer[i];
109}
110
111void Parser::ReadInput()
112{
c61a7285 113 int j,tPartIter=0,l,tIter2, tIter; //variables
09b7c66c 114 char str[200];
115 char str1[200];
2e967919 116 double spin1,spin2,value;
117
118 ////// START OF "TABLES.M" /////////
119 ifstream in("tables.m");
120 if(in)
121 {
122 //START OF HEAD-LINE
123 in.ignore(100,'\n');
124 //END OF HEAD-LINE
125
126 for(tIter2=0;tIter2<50;tIter2++) str[tIter2]='\0';
127
128 tPartIter=0;
129
130 //START OF DATA
131 while(in>>str)
132 {
133 if(*str == 'x') break;
134
135 l=0;
136 //PARTICLE NAME AND MASS
137 if(str[0] == 'm' && str[1] == '[')
138 {
139 for(;;)
140 {
141 if(str[l+2] == ']') break;
142 mNameBuffer[tPartIter][l]=str[l+2]; //name
143 l++;
144 }
145 // mNameBuffer[tPartIter][l]='\0';
146 in>>str; // sign "="
147 in>>value; // mass
148 mMassBuffer[tPartIter]=value;
149 mTypeCountBuffer[tPartIter]=tPartIter;
150 for(tIter2=0;tIter2<50;tIter2++) str[tIter2]='\0';
151 }
152
153 if(str[0] == 'G' && str[3] == '[')
154 {
155 in>>str; // sign "="
156 in>>value; // gamma
157 mGammaBuffer[tPartIter]=value;
158 for(tIter2=0;tIter2<50;tIter2++) str[tIter2]='\0';
159 }
160
161 // spin
162 if(str[0] == 'J' && str[1] == '[')
163 {
164 in>>str; // sign "="
165 in>>str;
166 if(str[1] == '/')
167 {
168 *str1=str[0];spin1=atof(str1);
169 *str1=str[2];spin2=atof(str1);
170 mSpinBuffer[tPartIter]=spin1/spin2;
171 }
172 if(str[0] == '-')
173 {
174 *str1=str[1];spin1=atof(str1);
175 mSpinBuffer[tPartIter]=-spin1;
176 }
177 if(str[0]!='-' && str[1]!='/')
178 {
179 *str1=str[0];
180 spin1=atof(str1);
181 mSpinBuffer[tPartIter]=spin1;
182 }
183 tPartIter++; //next particle
184 for(tIter2=0;tIter2<50;tIter2++) str[tIter2]='\0';
185 }
186 }
187 //END OF DATA
188 }
189 mParticleCount=tPartIter;
190 ////// END OF "TABLES.M" /////////
191
192
193 ////// START OF "i200STAR.m"//////
194
195 double izospin1,izospin2; //help to calculate izospin, if niecalkowity
196 // input=fopen("i200STAR.m","r+");
197 ifstream in1("i200STAR.m");
198
199 for(tIter2=0;tIter2<369;tIter2++)
200 for(int jj=0;jj<2;jj++) mDecayBuffer[tIter2][jj]=0;
201
202 for(;;)
203 {
204 j=3; //first letter of particle in line in file
205 for(tIter=0;tIter<50;tIter++) str[tIter]='\0';
206 for(tIter=0;tIter<20;tIter++) str1[tIter]='\0';
207 tIter=0;
208
209 in1.getline(str,200);
210
211 if(str[0] == 'x') break;
212
213 if(str[0] == 'f' && str[1] == 'i')
214 {
215 //name
216 for(;;)
217 {
218 if(str[j] == ',')
219 {
220 j++; //to skip ","
221 break;
222 }
223 str1[tIter++]=str[j++];
224 }
225 for(tIter=0;tIter<369;tIter++)
226 {
227 if(check(str1,mNameBuffer[tIter]))
228 {
229 //barion number
230 for(tIter2=0;tIter2<20;tIter2++) str1[tIter2]='\0';
231 if(str[j] == '-')
232 {
233 *str1=str[j+1];
234 mBarionBuffer[tIter]=atoi(str1);
235 mBarionBuffer[tIter]=-mBarionBuffer[tIter];
236 }
237 if(str[j] != '-')
238 {
239 *str1=str[j];
240 mBarionBuffer[tIter]=atoi(str1);
241 }
242 if(str[j] == '-') j+=3;
243 else j+=2;
244
245 //strange number
246 for(tIter2=0;tIter2<20;tIter2++) str1[tIter2]='\0';
247 if(str[j] == '-')
248 {
249 *str1=str[j+1];
250 mStrangeBuffer[tIter]=atoi(str1);
251 mStrangeBuffer[tIter]=-mStrangeBuffer[tIter];
252 }
253 if(str[j] != '-')
254 {
255 *str1=str[j];
256 mStrangeBuffer[tIter]=atoi(str1);
257 }
258 if(str[j] == '-') j+=3;
259 else j+=2;
260
261 //izospin3 number
262 for(tIter2=0;tIter2<20;tIter2++) str1[tIter2]='\0';
263 if(str[j+1] == '/' && str[j+3] == ']')
264 {
265 *str1=str[j];
266 izospin1=atoi(str1);
267 *str1=str[j+2];
268 izospin2=atoi(str1);
269 mI3Buffer[tIter]=izospin1/izospin2;
270 }
271 if(str[j] == '-' && str[j+2] == '/' && str[j+4] == ']')
272 {
273 *str1=str[j+1];
274 izospin1=atoi(str1);
275 *str1=str[j+3];
276 izospin2=atoi(str1);
277 mI3Buffer[tIter]=-izospin1/izospin2;
278 }
279 if(str[j] == '-' && str[j+2] == ']')
280 {
281 *str1=str[j+1];
282 izospin1=atoi(str1);
283 mI3Buffer[tIter]=-izospin1;
284 }
285 if(str[j+1] == ']')
286 {
287 *str1=str[j];
288 mI3Buffer[tIter]=atof(str1);
289 }
290 break;
291 }
292 }
293 }
294
295 //DECAY CHANNELS
296
297 tIter=0;
298 //TWO-BODY DECAYS
299 if(str[0] == 's' && str[1] == 'e' && str[2] == '[')
300 {
301 // Reading in the decay channels
f7134a95 302 char *tLBrackert=NULL, *tFirstComma=NULL, *tSecondComma=NULL, *tThirdComma=NULL, *tRBracket=NULL;
2e967919 303
304 tLBrackert = strchr(str,'[');
305 tFirstComma = strchr(str,',');
aec4187c 306 if (!tFirstComma) exit(0);
2e967919 307 tSecondComma = strchr(tFirstComma+1,',');
aec4187c 308 if (!tSecondComma) exit(0);
2e967919 309 tThirdComma = strchr(tSecondComma+1,',');
aec4187c 310 if (!tThirdComma) exit(0);
2e967919 311 tRBracket = strchr(tThirdComma,']');
312
f5e2bbd0 313 if (!((tLBrackert != NULL) && (tFirstComma != NULL) && (tSecondComma != NULL) && ( tThirdComma != NULL) && (tRBracket!= NULL))) {
2e967919 314 PRINT_DEBUG_1("Malformed line!: " << str);
f5e2bbd0 315 exit(0);
316 }
317
f8777da0 318 char *tFather = new char[tFirstComma-tLBrackert];
319 strncpy(tFather, tLBrackert+1, tFirstComma-tLBrackert-1);
320 char *tDaughter1 = new char[tSecondComma-tFirstComma];
321 strncpy(tDaughter1, tFirstComma+1, tSecondComma-tFirstComma-1);
322 char *tDaughter2 = new char[tThirdComma-tSecondComma];
323 strncpy(tDaughter2, tSecondComma+1, tThirdComma-tSecondComma-1);
324 char *tBRatio = new char[tRBracket-tThirdComma];
325 strncpy(tBRatio, tThirdComma+1, tRBracket-tThirdComma-1);
2e967919 326
327 // Getting the ratio
328 char *tMiddle, *tRatComponent;
329 double tRatio = 1.0;
330
331 tMiddle = strchr(tBRatio,'_');
332 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
333 while(tMiddle)
334 {
f8777da0 335 tRatComponent = new char[tMiddle-tBRatio+1];
336 strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
2e967919 337 if (strchr(tRatComponent,'/'))
338 tRatio *= atof(tRatComponent)/atof(tRatComponent+2);
339 else
340 tRatio *= atof(tRatComponent);
341 tBRatio = tMiddle+1;
342 tMiddle = strchr(tBRatio,'_');
343 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
f8777da0 344 delete [] tRatComponent;
2e967919 345 }
346 if (strchr(tBRatio,'/'))
347 tRatio *= atof(tBRatio)/atof(tBRatio+2);
348 else
349 tRatio *= atof(tBRatio);
09b7c66c 350
8e85ac49 351 delete [] tFather;
352 delete [] tDaughter1;
353 delete [] tDaughter2;
354 delete [] tBRatio;
2e967919 355 }
356
357 //THREE-BODY DECAYS
358 j++; //because se3[]
359 if(str[0] == 's' && str[1] == 'e' && str[2] == '3' && str[3] == '[')
360 {
361 for(;;)
362 {
363 if(str[j] == ',')
364 {
365 j++; //to skip ","
366 break;
367 }
368 str1[tIter++]=str[j++]; //name
369 }
370
371 for(tIter=0;tIter<369;tIter++)
372 {
373 if(check(str1,mNameBuffer[tIter]))
374 {
375 mDecayBuffer[tIter][1]++;
376 break;
377 }
378 }
379 }
380
381
382 }
383 ////// END OF "i200STAR.m"//////
384
385 ParticleType *tPartBuf;
386 int tNum, tPart;
387
388 for(tPart=0;tPart<mParticleCount;tPart++)
389 {
390 tPartBuf = new ParticleType();
391 tPartBuf->SetName(mNameBuffer[tPart]);
392 tPartBuf->SetMass(mMassBuffer[tPart]);
393 tPartBuf->SetGamma(mGammaBuffer[tPart]);
394 tPartBuf->SetSpin(mSpinBuffer[tPart]);
395 tPartBuf->SetBarionN(mBarionBuffer[tPart]);
396 tPartBuf->SetStrangeness(mStrangeBuffer[tPart]);
397 tPartBuf->SetI3(mI3Buffer[tPart]);
398 tPartBuf->SetDecayChannelCount2(mDecayBuffer[tPart][0]);
399 tPartBuf->SetDecayChannelCount3(mDecayBuffer[tPart][1]);
400 tPartBuf->SetNumber(tPart);
401 tNum = mDB->AddParticleType(tPartBuf);
402 }
403
404 ifstream in2("i200STAR.m");
405 while (in2.getline(str,200))
406 {
407 tIter=0;
408 //TWO-BODY DECAYS
409 if(str[0] == 's' && str[1] == 'e' && str[2] == '[')
410 {
411 // Reading in the decay channels
412 char *tLBrackert, *tFirstComma, *tSecondComma, *tThirdComma, *tRBracket;
2e967919 413
414 tLBrackert = strchr(str,'[');
37273086 415 if (!tLBrackert) exit(0);
2e967919 416 tFirstComma = strchr(str,',');
37273086 417 if (!tFirstComma) exit(0);
2e967919 418 tSecondComma = strchr(tFirstComma+1,',');
37273086 419 if (!tSecondComma) exit(0);
2e967919 420 tThirdComma = strchr(tSecondComma+1,',');
37273086 421 if (!tThirdComma) exit(0);
2e967919 422 tRBracket = strchr(tThirdComma,']');
423 if (!(tLBrackert && tFirstComma && tSecondComma && tThirdComma && tRBracket))
424 PRINT_DEBUG_1("Malformed line!: " << str);
425
f8777da0 426 char *tFather = new char[tFirstComma-tLBrackert];
427 strncpy(tFather, tLBrackert+1, tFirstComma-tLBrackert-1);
428 char *tDaughter1 = new char[tSecondComma-tFirstComma];
429 strncpy(tDaughter1, tFirstComma+1, tSecondComma-tFirstComma-1);
430 char *tDaughter2 = new char[tThirdComma-tSecondComma];
431 strncpy(tDaughter2, tSecondComma+1, tThirdComma-tSecondComma-1);
432 char *tBRatio = new char[tRBracket-tThirdComma];
433 strncpy(tBRatio, tThirdComma+1, tRBracket-tThirdComma-1);
2e967919 434
435 // Getting the ratio
436 char *tMiddle, *tRatComponent;
437 double tRatio = 1.0;
438
439 tMiddle = strchr(tBRatio,'_');
440 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
441 while(tMiddle)
442 {
f8777da0 443 tRatComponent = new char[tMiddle-tBRatio];
444 strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
2e967919 445 if (strchr(tRatComponent,'/'))
446 tRatio *= atof(tRatComponent)/atof(tRatComponent+2);
447 else
448 tRatio *= atof(tRatComponent);
449 tBRatio = tMiddle+1;
450 tMiddle = strchr(tBRatio,'_');
451 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
f8777da0 452 delete [] tRatComponent;
2e967919 453 }
454 if (strchr(tBRatio,'/'))
455 tRatio *= atof(tBRatio)/atof(tBRatio+2);
456 else
457 tRatio *= atof(tBRatio);
458
459 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), -1);
460 // if (mDB->GetParticleType(tDaughter1)->GetMass() +
461 // mDB->GetParticleType(tDaughter2)->GetMass()
462 // < mDB->GetParticleType(tFather)->GetMass()) {
463 // (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
464 // }
465 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
09b7c66c 466
0cf15e65 467 delete [] tFather;
468 delete [] tDaughter1;
469 delete [] tDaughter2;
0cf15e65 470 delete [] tBRatio;
471
09b7c66c 472 delete newChannel;
2e967919 473 }
474
475 if(str[0] == 's' && str[1] == 'e' && str[2] == '3')
476 {
477 // Reading in the decay channels
478 char *tLBrackert, *tFirstComma, *tSecondComma, *tThirdComma, *tFourthComma, *tRBracket;
2e967919 479
480 tLBrackert = strchr(str,'[');
481 tFirstComma = strchr(str,',');
482 tSecondComma = strchr(tFirstComma+1,',');
483 tThirdComma = strchr(tSecondComma+1,',');
484 tFourthComma = strchr(tThirdComma+1,',');
485 tRBracket = strchr(tThirdComma,']');
486
487 if (!(tLBrackert && tFirstComma && tSecondComma && tThirdComma && tFourthComma && tRBracket))
488 PRINT_DEBUG_1("Malformed line!: " << str);
489
f8777da0 490 char *tFather = new char[tFirstComma-tLBrackert];
491 strncpy(tFather, tLBrackert+1, tFirstComma-tLBrackert-1);
492 char *tDaughter1 = new char[tSecondComma-tFirstComma];
493 strncpy(tDaughter1, tFirstComma+1, tSecondComma-tFirstComma-1);
494 char *tDaughter2 = new char[tThirdComma-tSecondComma];
495 strncpy(tDaughter2, tSecondComma+1, tThirdComma-tSecondComma-1);
496 char *tDaughter3 = new char[tFourthComma-tThirdComma];
497 strncpy(tDaughter3, tThirdComma+1, tFourthComma-tThirdComma-1);
498 char *tBRatio = new char[tRBracket-tFourthComma];
499 strncpy(tBRatio, tFourthComma+1, tRBracket-tFourthComma-1);
2e967919 500
501 // Getting the ratio
502 char *tMiddle, *tRatComponent;
503 double tRatio = 1.0;
504
505 tMiddle = strchr(tBRatio,'_');
506 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
507 while(tMiddle)
508 {
f8777da0 509 tRatComponent = new char[tMiddle-tBRatio+1];
510 strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
2e967919 511 if (strchr(tRatComponent,'/'))
512 tRatio *= atof(tRatComponent)/atof(tRatComponent+2);
513 else
514 tRatio *= atof(tRatComponent);
515 tBRatio = tMiddle+1;
516 tMiddle = strchr(tBRatio,'_');
517 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
f8777da0 518 delete [] tRatComponent;
2e967919 519 }
520 if (strchr(tBRatio,'/'))
521 tRatio *= atof(tBRatio)/atof(tBRatio+2);
522 else
523 tRatio *= atof(tBRatio);
524
525 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), mDB->GetParticleTypeIndex(tDaughter3));
526 // if (mDB->GetParticleType(tDaughter1)->GetMass() +
527 // mDB->GetParticleType(tDaughter2)->GetMass() +
528 // mDB->GetParticleType(tDaughter3)->GetMass()
529 // < mDB->GetParticleType(tFather)->GetMass())
530 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
d58024dc 531
0cf15e65 532 delete [] tFather;
533 delete [] tDaughter1;
534 delete [] tDaughter2;
535 delete [] tDaughter3;
536 delete [] tBRatio;
6750cf94 537
538 delete newChannel;
2e967919 539 }
540 }
541
542 ifstream in3("pdgcodes.m");
543 while (in3.getline(str,200))
544 {
545 string tName;
546 int tCode;
547
548 std::stringstream tIS(str);
549 tIS >> tName >> tCode;
550 mDB->GetParticleType(tName)->SetPDGCode(tCode);
551 }
552
553}
554
555
556void Parser::ReadShare()
557{
558 char str[50];
559 char str1[200];
560
561 ParticleType *tPartBuf;
562 int tNum;
563
564 PRINT_DEBUG_1("Reading from |"<<(mInputDir+"/"+"particles.data").Data()<<"|");
565 ifstream in((mInputDir+"/"+"particles.data").Data());
566
567 int number=0;
568 if ((in) && (in.is_open()))
569 {
570 //START OF HEAD-LINE
571 in.ignore(200,'\n');
572 in.ignore(200,'\n');
573 in.ignore(200,'\n');
574 //END OF HEAD-LINE
575
576 while (in>>str)
577 {
578 if (/*(*str == '#')||*/(*str<65)||(*str>122))
579 {
580 in.getline(str1,200);
581 continue;
582 }
583 double mass, gamma, spin, I3, I, q, s, aq, as, c, ac, mc;
584
585 in>>mass>>gamma>>spin>>I>>I3>>q>>s>>aq>>as>>c>>ac>>mc;
586 number++;
587 PRINT_DEBUG_2(number<<" "<<str<<" "<<mass<<" "<<gamma<<" "<<spin<<" "<<I<<" "<<I3<<" "<<q<<" "<<aq<<" "<<s<<" "<<as<<" "<<c<<" "<<ac<<" "<<mc);
588
589 tPartBuf = new ParticleType();
590 tPartBuf->SetName(str);
591 tPartBuf->SetMass(mass);
592 tPartBuf->SetGamma(gamma);
593 tPartBuf->SetSpin(spin);
594 tPartBuf->SetBarionN((int) ((q+s+c)/3. - (aq+as+ac)/3.) );
595 tPartBuf->SetCharmN((int) (c - ac));
596 tPartBuf->SetStrangeness((int) (as-s));
597 tPartBuf->SetI(I);
598 tPartBuf->SetI3(I3);
599 tPartBuf->SetPDGCode((int) mc);
600 tPartBuf->SetNumber(number);
601 tNum = mDB->AddParticleType(tPartBuf);
d779ed42 602
603 delete tPartBuf;
2e967919 604 }
605 in.close();
606 }
607 else
608 {
609 PRINT_MESSAGE("File "<<(mInputDir+"/"+"particles.data").Data()<<" containing particle data not found!");
610 PRINT_MESSAGE("Please set the correct path to this file in the input parameter file");
611 PRINT_MESSAGE("Aborting!");
612 exit(0);
613 }
614
615 ifstream in2((mInputDir+"/decays.data").Data());
616 if ((in2) && (in2.is_open()))
617 {
618 //START OF HEAD-LINE
619 in2.ignore(200,'\n');
620 in2.ignore(200,'\n');
621 in2.ignore(200,'\n');
622 //END OF HEAD-LINE
623
f12dabf0 624 char tFather[50], tDaughter1[50], tDaughter2[50], tDaughter3[50];
2e967919 625 double tBRatio, tRatio;
626 int CGcoeff; // complete branching ratio by Clebsch-Gordan coefficient: 0-no 1-yes
627
628 while (in2>>str)
629 {
630 if (*str == '#')
631 {
632 in2.getline(str1,200);
633 continue;
634 }
635 in2>>tDaughter1>>tDaughter2>>tDaughter3;
636 if (!mDB->ExistsParticleType(tDaughter1)) {
637 PRINT_MESSAGE("Did not find the daughter 1 particle: " << tDaughter1);
638 PRINT_MESSAGE("Not adding channel");
639 in2.getline(str1,200);
640 continue;
641 }
642 if (!mDB->ExistsParticleType(tDaughter2)) {
643 PRINT_MESSAGE("Did not find the daughter 2 particle: " << tDaughter2);
644 PRINT_MESSAGE("Not adding channel");
645 in2.getline(str1,200);
646 continue;
647 }
648 if ((*tDaughter3>65)&&(*tDaughter3<122)&&(!mDB->ExistsParticleType(tDaughter3))) {
649 PRINT_MESSAGE("Did not find the daughter 3 particle: " << tDaughter3);
650 PRINT_MESSAGE("Not adding channel");
651 in2.getline(str1,200);
652 continue;
653 }
654
655 strcpy(tFather,str);
656 PRINT_DEBUG_2(tFather<<"\t"<<tDaughter1<<"\t"<<tDaughter2<<"\t");
657 if ((*tDaughter3>65)&&(*tDaughter3<122)) // check if first char is a letter - if yes then 3-body decay
658 {
659 in2>>tBRatio>>CGcoeff;
660 PRINT_DEBUG_2(tDaughter3<<" (3-body decay)\t");
661 if (mDB->ExistsParticleType(tFather)) {
662 mDB->GetParticleType(tFather)->SetDecayChannelCount3(mDB->GetParticleType(tFather)->GetDecayChannelCount3()+1);
663
664 tRatio=tBRatio;
665 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), mDB->GetParticleTypeIndex(tDaughter3));
666 if (mDB->GetParticleType(tDaughter1)->GetMass() +
667 mDB->GetParticleType(tDaughter2)->GetMass() +
668 mDB->GetParticleType(tDaughter3)->GetMass()
669 < mDB->GetParticleType(tFather)->GetMass())
670 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
09b7c66c 671
672 delete newChannel;
2e967919 673
674 tRatio=tBRatio;
675 PRINT_DEBUG_2(tBRatio << '\t' << tRatio);
676 }
677 else {
678 PRINT_MESSAGE("Did not find the father particle: " << tFather);
679 PRINT_MESSAGE("Not adding channel");
680 }
681 }
682 else // 2-body decay
683 {
684 tBRatio=atof(tDaughter3);
685
686 in2>>CGcoeff;
687 PRINT_DEBUG_2(" (2-body decay)\t");
688 if (mDB->ExistsParticleType(tFather)) {
689 mDB->GetParticleType(tFather)->SetDecayChannelCount2(mDB->GetParticleType(tFather)->GetDecayChannelCount2()+1);
690
691 // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
692 if (CGcoeff) // complete branching ratio by Clebsch-Gordan coefficient
693 {
694 double j1, m1, j2, m2, J, M, CB;
695 J=mDB->GetParticleType(tFather)->GetI();
696 M=mDB->GetParticleType(tFather)->GetI3();
697 j1=mDB->GetParticleType(tDaughter1)->GetI();
698 m1=mDB->GetParticleType(tDaughter1)->GetI3();
699 j2=mDB->GetParticleType(tDaughter2)->GetI();
700 m2=mDB->GetParticleType(tDaughter2)->GetI3();
701 PRINT_DEBUG_2(" "<<J<<" "<<M<<" "<<j1<<" "<<m1<<" "<<j2<<" "<<m2);
702
703 CB = ClebschGordan(J, M, j1, m1, j2, m2);
704 tRatio = CB*CB * tBRatio;
705
706 // Multiply the Clebsh by two?
707 // The same spin, mass, strangeness
708 // and different I3?
709 if ((fabs(mDB->GetParticleType(tDaughter1)->GetSpin() - mDB->GetParticleType(tDaughter2)->GetSpin()) < 0.01) &&
710 (fabs(mDB->GetParticleType(tDaughter1)->GetMass() - mDB->GetParticleType(tDaughter2)->GetMass()) < 0.01) &&
711 (mDB->GetParticleType(tDaughter1)->GetStrangeness() == mDB->GetParticleType(tDaughter2)->GetStrangeness()) &&
712 (fabs(mDB->GetParticleType(tDaughter1)->GetI3() - mDB->GetParticleType(tDaughter2)->GetI3()) > 0.01))
713 {
714 PRINT_DEBUG_2("Multuplying Clebsch by two for " << tFather << "->" << tDaughter1 << "+" << tDaughter2);
715 tRatio *= 2.0;
716 }
717
718 PRINT_DEBUG_2(CB << '\t' << tBRatio << '\t' << tRatio<<"\t"<<CGcoeff);
719 }
720
721 else
722 {
723 tRatio=tBRatio;
724 PRINT_DEBUG_2(tBRatio << '\t' << tRatio);
725 }
726 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), -1);
727 if (mDB->GetParticleType(tDaughter1)->GetMass() +
728 mDB->GetParticleType(tDaughter2)->GetMass()
729 < mDB->GetParticleType(tFather)->GetMass())
730 {
731 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
732 PRINT_DEBUG_2("Added channel " << newChannel << " " << mDB->GetParticleTypeIndex(tFather) << " " << mDB->GetParticleTypeIndex(tDaughter1) << " " << mDB->GetParticleTypeIndex(tDaughter2));
6750cf94 733 delete newChannel;
2e967919 734 }
735 else
736 {
737
738 PRINT_DEBUG_2("Masses do not match! Not adding channel " << newChannel);
d58024dc 739
740 delete newChannel;
2e967919 741 }
742 }
743 else {
744 PRINT_MESSAGE("Did not find the father particle: " << tFather);
745 PRINT_MESSAGE("Not adding channel");
746 }
747 }
748 }
749 in2.close();
750 }
751 else {
752 PRINT_MESSAGE("File "<<(mInputDir+"/decays.data").Data()<<" with particle decay channels not found!");
753 PRINT_MESSAGE("No particle decays will be simulated");
754 }
755}
756
757double
758Parser::ClebschGordan(double aJot, double aEm, double aJot1, double aEm1, double aJot2, double aEm2)
759{
760 int mint, maxt;
761 double cgc = 0.0;
762 int titer;
763 double coef;
764
765 maxt = lrint(aJot1 + aJot2 - aJot);
766 mint = 0;
767 if (lrint(aJot1 - aEm1) < maxt) maxt = lrint(aJot1 - aEm1);
768 if (lrint(aJot2 + aEm2) < maxt) maxt = lrint(aJot2 + aEm2);
769 if (lrint(-(aJot-aJot2+aEm1)) > mint) mint = lrint(-(aJot-aJot2+aEm1));
770 if (lrint(-(aJot-aJot1-aEm2)) > mint) mint = lrint(-(aJot-aJot1-aEm2));
771
772 PRINT_DEBUG_3("mint " << mint << " " << aJot1 << " " << aEm1);
773 PRINT_DEBUG_3("maxt " << maxt << " " << aJot2 << " " << aEm2);
774
775 for (titer = mint; titer<=maxt; titer ++)
776 {
777 coef = TMath::Power(-1, titer);
778 PRINT_DEBUG_3("coef1 " << coef);
779 coef *= TMath::Sqrt((2*aJot+1)*
780 factorials[lrint(aJot1+aEm1)] *
781 factorials[lrint(aJot1-aEm1)] *
782 factorials[lrint(aJot2+aEm2)] *
783 factorials[lrint(aJot2-aEm2)] *
784 factorials[lrint(aJot+aEm)] *
785 factorials[lrint(aJot-aEm)]);
786 PRINT_DEBUG_3("coef2 " << coef);
787 coef /= (factorials[titer] *
788 factorials[lrint(aJot1+aJot2-aJot-titer)] *
789 factorials[lrint(aJot1-aEm1-titer)] *
790 factorials[lrint(aJot2+aEm2-titer)] *
791 factorials[lrint(aJot-aJot2+aEm1+titer)] *
792 factorials[lrint(aJot-aJot1-aEm2+titer)]);
793 PRINT_DEBUG_3("coef3 " << coef);
794
795 cgc += coef;
796 }
797
798 cgc *= DeltaJ(aJot1, aJot2, aJot);
799
800 return cgc;
801}
802
803double
804Parser::DeltaJ(double aJot1, double aJot2, double aJot)
805{
806 double res = TMath::Sqrt(1.0 *
807 factorials[lrint(aJot1+aJot2-aJot)] *
808 factorials[lrint(aJot1-aJot2+aJot)] *
809 factorials[lrint(-aJot1+aJot2+aJot)] /
810 factorials[lrint(aJot1+aJot2+aJot+1)]);
811
812 return res;
813}
814
815void
816Parser::ReadParameters()
817{
818 // Read the input directory
819 try {
820 mInputDir = sRPInstance->getPar("InputDirSHARE");
821 }
822 catch (STR tError) {
823 PRINT_DEBUG_1("Parser::ReadParameters - Caught exception " << tError);
824 PRINT_MESSAGE("Did not find SHARE input file location.");
825 PRINT_MESSAGE("Using default: '../share'");
826 mInputDir = "../share";
827 }
828}