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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
f7134a95 313 if (!((tLBrackert != NULL) && (tFirstComma != NULL) && (tSecondComma != NULL) && ( tThirdComma != NULL) && (tRBracket!= NULL)))
2e967919 314 PRINT_DEBUG_1("Malformed line!: " << str);
315
f8777da0 316 char *tFather = new char[tFirstComma-tLBrackert];
317 strncpy(tFather, tLBrackert+1, tFirstComma-tLBrackert-1);
318 char *tDaughter1 = new char[tSecondComma-tFirstComma];
319 strncpy(tDaughter1, tFirstComma+1, tSecondComma-tFirstComma-1);
320 char *tDaughter2 = new char[tThirdComma-tSecondComma];
321 strncpy(tDaughter2, tSecondComma+1, tThirdComma-tSecondComma-1);
322 char *tBRatio = new char[tRBracket-tThirdComma];
323 strncpy(tBRatio, tThirdComma+1, tRBracket-tThirdComma-1);
2e967919 324
325 // Getting the ratio
326 char *tMiddle, *tRatComponent;
327 double tRatio = 1.0;
328
329 tMiddle = strchr(tBRatio,'_');
330 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
331 while(tMiddle)
332 {
f8777da0 333 tRatComponent = new char[tMiddle-tBRatio+1];
334 strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
2e967919 335 if (strchr(tRatComponent,'/'))
336 tRatio *= atof(tRatComponent)/atof(tRatComponent+2);
337 else
338 tRatio *= atof(tRatComponent);
339 tBRatio = tMiddle+1;
340 tMiddle = strchr(tBRatio,'_');
341 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
f8777da0 342 delete [] tRatComponent;
2e967919 343 }
344 if (strchr(tBRatio,'/'))
345 tRatio *= atof(tBRatio)/atof(tBRatio+2);
346 else
347 tRatio *= atof(tBRatio);
09b7c66c 348
8e85ac49 349 delete [] tFather;
350 delete [] tDaughter1;
351 delete [] tDaughter2;
352 delete [] tBRatio;
2e967919 353 }
354
355 //THREE-BODY DECAYS
356 j++; //because se3[]
357 if(str[0] == 's' && str[1] == 'e' && str[2] == '3' && str[3] == '[')
358 {
359 for(;;)
360 {
361 if(str[j] == ',')
362 {
363 j++; //to skip ","
364 break;
365 }
366 str1[tIter++]=str[j++]; //name
367 }
368
369 for(tIter=0;tIter<369;tIter++)
370 {
371 if(check(str1,mNameBuffer[tIter]))
372 {
373 mDecayBuffer[tIter][1]++;
374 break;
375 }
376 }
377 }
378
379
380 }
381 ////// END OF "i200STAR.m"//////
382
383 ParticleType *tPartBuf;
384 int tNum, tPart;
385
386 for(tPart=0;tPart<mParticleCount;tPart++)
387 {
388 tPartBuf = new ParticleType();
389 tPartBuf->SetName(mNameBuffer[tPart]);
390 tPartBuf->SetMass(mMassBuffer[tPart]);
391 tPartBuf->SetGamma(mGammaBuffer[tPart]);
392 tPartBuf->SetSpin(mSpinBuffer[tPart]);
393 tPartBuf->SetBarionN(mBarionBuffer[tPart]);
394 tPartBuf->SetStrangeness(mStrangeBuffer[tPart]);
395 tPartBuf->SetI3(mI3Buffer[tPart]);
396 tPartBuf->SetDecayChannelCount2(mDecayBuffer[tPart][0]);
397 tPartBuf->SetDecayChannelCount3(mDecayBuffer[tPart][1]);
398 tPartBuf->SetNumber(tPart);
399 tNum = mDB->AddParticleType(tPartBuf);
400 }
401
402 ifstream in2("i200STAR.m");
403 while (in2.getline(str,200))
404 {
405 tIter=0;
406 //TWO-BODY DECAYS
407 if(str[0] == 's' && str[1] == 'e' && str[2] == '[')
408 {
409 // Reading in the decay channels
410 char *tLBrackert, *tFirstComma, *tSecondComma, *tThirdComma, *tRBracket;
2e967919 411
412 tLBrackert = strchr(str,'[');
37273086 413 if (!tLBrackert) exit(0);
2e967919 414 tFirstComma = strchr(str,',');
37273086 415 if (!tFirstComma) exit(0);
2e967919 416 tSecondComma = strchr(tFirstComma+1,',');
37273086 417 if (!tSecondComma) exit(0);
2e967919 418 tThirdComma = strchr(tSecondComma+1,',');
37273086 419 if (!tThirdComma) exit(0);
2e967919 420 tRBracket = strchr(tThirdComma,']');
421 if (!(tLBrackert && tFirstComma && tSecondComma && tThirdComma && tRBracket))
422 PRINT_DEBUG_1("Malformed line!: " << str);
423
f8777da0 424 char *tFather = new char[tFirstComma-tLBrackert];
425 strncpy(tFather, tLBrackert+1, tFirstComma-tLBrackert-1);
426 char *tDaughter1 = new char[tSecondComma-tFirstComma];
427 strncpy(tDaughter1, tFirstComma+1, tSecondComma-tFirstComma-1);
428 char *tDaughter2 = new char[tThirdComma-tSecondComma];
429 strncpy(tDaughter2, tSecondComma+1, tThirdComma-tSecondComma-1);
430 char *tBRatio = new char[tRBracket-tThirdComma];
431 strncpy(tBRatio, tThirdComma+1, tRBracket-tThirdComma-1);
2e967919 432
433 // Getting the ratio
434 char *tMiddle, *tRatComponent;
435 double tRatio = 1.0;
436
437 tMiddle = strchr(tBRatio,'_');
438 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
439 while(tMiddle)
440 {
f8777da0 441 tRatComponent = new char[tMiddle-tBRatio];
442 strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
2e967919 443 if (strchr(tRatComponent,'/'))
444 tRatio *= atof(tRatComponent)/atof(tRatComponent+2);
445 else
446 tRatio *= atof(tRatComponent);
447 tBRatio = tMiddle+1;
448 tMiddle = strchr(tBRatio,'_');
449 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
f8777da0 450 delete [] tRatComponent;
2e967919 451 }
452 if (strchr(tBRatio,'/'))
453 tRatio *= atof(tBRatio)/atof(tBRatio+2);
454 else
455 tRatio *= atof(tBRatio);
456
457 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), -1);
458 // if (mDB->GetParticleType(tDaughter1)->GetMass() +
459 // mDB->GetParticleType(tDaughter2)->GetMass()
460 // < mDB->GetParticleType(tFather)->GetMass()) {
461 // (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
462 // }
463 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
09b7c66c 464
0cf15e65 465 delete [] tFather;
466 delete [] tDaughter1;
467 delete [] tDaughter2;
0cf15e65 468 delete [] tBRatio;
469
09b7c66c 470 delete newChannel;
2e967919 471 }
472
473 if(str[0] == 's' && str[1] == 'e' && str[2] == '3')
474 {
475 // Reading in the decay channels
476 char *tLBrackert, *tFirstComma, *tSecondComma, *tThirdComma, *tFourthComma, *tRBracket;
2e967919 477
478 tLBrackert = strchr(str,'[');
479 tFirstComma = strchr(str,',');
480 tSecondComma = strchr(tFirstComma+1,',');
481 tThirdComma = strchr(tSecondComma+1,',');
482 tFourthComma = strchr(tThirdComma+1,',');
483 tRBracket = strchr(tThirdComma,']');
484
485 if (!(tLBrackert && tFirstComma && tSecondComma && tThirdComma && tFourthComma && tRBracket))
486 PRINT_DEBUG_1("Malformed line!: " << str);
487
f8777da0 488 char *tFather = new char[tFirstComma-tLBrackert];
489 strncpy(tFather, tLBrackert+1, tFirstComma-tLBrackert-1);
490 char *tDaughter1 = new char[tSecondComma-tFirstComma];
491 strncpy(tDaughter1, tFirstComma+1, tSecondComma-tFirstComma-1);
492 char *tDaughter2 = new char[tThirdComma-tSecondComma];
493 strncpy(tDaughter2, tSecondComma+1, tThirdComma-tSecondComma-1);
494 char *tDaughter3 = new char[tFourthComma-tThirdComma];
495 strncpy(tDaughter3, tThirdComma+1, tFourthComma-tThirdComma-1);
496 char *tBRatio = new char[tRBracket-tFourthComma];
497 strncpy(tBRatio, tFourthComma+1, tRBracket-tFourthComma-1);
2e967919 498
499 // Getting the ratio
500 char *tMiddle, *tRatComponent;
501 double tRatio = 1.0;
502
503 tMiddle = strchr(tBRatio,'_');
504 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
505 while(tMiddle)
506 {
f8777da0 507 tRatComponent = new char[tMiddle-tBRatio+1];
508 strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
2e967919 509 if (strchr(tRatComponent,'/'))
510 tRatio *= atof(tRatComponent)/atof(tRatComponent+2);
511 else
512 tRatio *= atof(tRatComponent);
513 tBRatio = tMiddle+1;
514 tMiddle = strchr(tBRatio,'_');
515 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
f8777da0 516 delete [] tRatComponent;
2e967919 517 }
518 if (strchr(tBRatio,'/'))
519 tRatio *= atof(tBRatio)/atof(tBRatio+2);
520 else
521 tRatio *= atof(tBRatio);
522
523 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), mDB->GetParticleTypeIndex(tDaughter3));
524 // if (mDB->GetParticleType(tDaughter1)->GetMass() +
525 // mDB->GetParticleType(tDaughter2)->GetMass() +
526 // mDB->GetParticleType(tDaughter3)->GetMass()
527 // < mDB->GetParticleType(tFather)->GetMass())
528 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
d58024dc 529
0cf15e65 530 delete [] tFather;
531 delete [] tDaughter1;
532 delete [] tDaughter2;
533 delete [] tDaughter3;
534 delete [] tBRatio;
6750cf94 535
536 delete newChannel;
2e967919 537 }
538 }
539
540 ifstream in3("pdgcodes.m");
541 while (in3.getline(str,200))
542 {
543 string tName;
544 int tCode;
545
546 std::stringstream tIS(str);
547 tIS >> tName >> tCode;
548 mDB->GetParticleType(tName)->SetPDGCode(tCode);
549 }
550
551}
552
553
554void Parser::ReadShare()
555{
556 char str[50];
557 char str1[200];
558
559 ParticleType *tPartBuf;
560 int tNum;
561
562 PRINT_DEBUG_1("Reading from |"<<(mInputDir+"/"+"particles.data").Data()<<"|");
563 ifstream in((mInputDir+"/"+"particles.data").Data());
564
565 int number=0;
566 if ((in) && (in.is_open()))
567 {
568 //START OF HEAD-LINE
569 in.ignore(200,'\n');
570 in.ignore(200,'\n');
571 in.ignore(200,'\n');
572 //END OF HEAD-LINE
573
574 while (in>>str)
575 {
576 if (/*(*str == '#')||*/(*str<65)||(*str>122))
577 {
578 in.getline(str1,200);
579 continue;
580 }
581 double mass, gamma, spin, I3, I, q, s, aq, as, c, ac, mc;
582
583 in>>mass>>gamma>>spin>>I>>I3>>q>>s>>aq>>as>>c>>ac>>mc;
584 number++;
585 PRINT_DEBUG_2(number<<" "<<str<<" "<<mass<<" "<<gamma<<" "<<spin<<" "<<I<<" "<<I3<<" "<<q<<" "<<aq<<" "<<s<<" "<<as<<" "<<c<<" "<<ac<<" "<<mc);
586
587 tPartBuf = new ParticleType();
588 tPartBuf->SetName(str);
589 tPartBuf->SetMass(mass);
590 tPartBuf->SetGamma(gamma);
591 tPartBuf->SetSpin(spin);
592 tPartBuf->SetBarionN((int) ((q+s+c)/3. - (aq+as+ac)/3.) );
593 tPartBuf->SetCharmN((int) (c - ac));
594 tPartBuf->SetStrangeness((int) (as-s));
595 tPartBuf->SetI(I);
596 tPartBuf->SetI3(I3);
597 tPartBuf->SetPDGCode((int) mc);
598 tPartBuf->SetNumber(number);
599 tNum = mDB->AddParticleType(tPartBuf);
d779ed42 600
601 delete tPartBuf;
2e967919 602 }
603 in.close();
604 }
605 else
606 {
607 PRINT_MESSAGE("File "<<(mInputDir+"/"+"particles.data").Data()<<" containing particle data not found!");
608 PRINT_MESSAGE("Please set the correct path to this file in the input parameter file");
609 PRINT_MESSAGE("Aborting!");
610 exit(0);
611 }
612
613 ifstream in2((mInputDir+"/decays.data").Data());
614 if ((in2) && (in2.is_open()))
615 {
616 //START OF HEAD-LINE
617 in2.ignore(200,'\n');
618 in2.ignore(200,'\n');
619 in2.ignore(200,'\n');
620 //END OF HEAD-LINE
621
f12dabf0 622 char tFather[50], tDaughter1[50], tDaughter2[50], tDaughter3[50];
2e967919 623 double tBRatio, tRatio;
624 int CGcoeff; // complete branching ratio by Clebsch-Gordan coefficient: 0-no 1-yes
625
626 while (in2>>str)
627 {
628 if (*str == '#')
629 {
630 in2.getline(str1,200);
631 continue;
632 }
633 in2>>tDaughter1>>tDaughter2>>tDaughter3;
634 if (!mDB->ExistsParticleType(tDaughter1)) {
635 PRINT_MESSAGE("Did not find the daughter 1 particle: " << tDaughter1);
636 PRINT_MESSAGE("Not adding channel");
637 in2.getline(str1,200);
638 continue;
639 }
640 if (!mDB->ExistsParticleType(tDaughter2)) {
641 PRINT_MESSAGE("Did not find the daughter 2 particle: " << tDaughter2);
642 PRINT_MESSAGE("Not adding channel");
643 in2.getline(str1,200);
644 continue;
645 }
646 if ((*tDaughter3>65)&&(*tDaughter3<122)&&(!mDB->ExistsParticleType(tDaughter3))) {
647 PRINT_MESSAGE("Did not find the daughter 3 particle: " << tDaughter3);
648 PRINT_MESSAGE("Not adding channel");
649 in2.getline(str1,200);
650 continue;
651 }
652
653 strcpy(tFather,str);
654 PRINT_DEBUG_2(tFather<<"\t"<<tDaughter1<<"\t"<<tDaughter2<<"\t");
655 if ((*tDaughter3>65)&&(*tDaughter3<122)) // check if first char is a letter - if yes then 3-body decay
656 {
657 in2>>tBRatio>>CGcoeff;
658 PRINT_DEBUG_2(tDaughter3<<" (3-body decay)\t");
659 if (mDB->ExistsParticleType(tFather)) {
660 mDB->GetParticleType(tFather)->SetDecayChannelCount3(mDB->GetParticleType(tFather)->GetDecayChannelCount3()+1);
661
662 tRatio=tBRatio;
663 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), mDB->GetParticleTypeIndex(tDaughter3));
664 if (mDB->GetParticleType(tDaughter1)->GetMass() +
665 mDB->GetParticleType(tDaughter2)->GetMass() +
666 mDB->GetParticleType(tDaughter3)->GetMass()
667 < mDB->GetParticleType(tFather)->GetMass())
668 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
09b7c66c 669
670 delete newChannel;
2e967919 671
672 tRatio=tBRatio;
673 PRINT_DEBUG_2(tBRatio << '\t' << tRatio);
674 }
675 else {
676 PRINT_MESSAGE("Did not find the father particle: " << tFather);
677 PRINT_MESSAGE("Not adding channel");
678 }
679 }
680 else // 2-body decay
681 {
682 tBRatio=atof(tDaughter3);
683
684 in2>>CGcoeff;
685 PRINT_DEBUG_2(" (2-body decay)\t");
686 if (mDB->ExistsParticleType(tFather)) {
687 mDB->GetParticleType(tFather)->SetDecayChannelCount2(mDB->GetParticleType(tFather)->GetDecayChannelCount2()+1);
688
689 // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
690 if (CGcoeff) // complete branching ratio by Clebsch-Gordan coefficient
691 {
692 double j1, m1, j2, m2, J, M, CB;
693 J=mDB->GetParticleType(tFather)->GetI();
694 M=mDB->GetParticleType(tFather)->GetI3();
695 j1=mDB->GetParticleType(tDaughter1)->GetI();
696 m1=mDB->GetParticleType(tDaughter1)->GetI3();
697 j2=mDB->GetParticleType(tDaughter2)->GetI();
698 m2=mDB->GetParticleType(tDaughter2)->GetI3();
699 PRINT_DEBUG_2(" "<<J<<" "<<M<<" "<<j1<<" "<<m1<<" "<<j2<<" "<<m2);
700
701 CB = ClebschGordan(J, M, j1, m1, j2, m2);
702 tRatio = CB*CB * tBRatio;
703
704 // Multiply the Clebsh by two?
705 // The same spin, mass, strangeness
706 // and different I3?
707 if ((fabs(mDB->GetParticleType(tDaughter1)->GetSpin() - mDB->GetParticleType(tDaughter2)->GetSpin()) < 0.01) &&
708 (fabs(mDB->GetParticleType(tDaughter1)->GetMass() - mDB->GetParticleType(tDaughter2)->GetMass()) < 0.01) &&
709 (mDB->GetParticleType(tDaughter1)->GetStrangeness() == mDB->GetParticleType(tDaughter2)->GetStrangeness()) &&
710 (fabs(mDB->GetParticleType(tDaughter1)->GetI3() - mDB->GetParticleType(tDaughter2)->GetI3()) > 0.01))
711 {
712 PRINT_DEBUG_2("Multuplying Clebsch by two for " << tFather << "->" << tDaughter1 << "+" << tDaughter2);
713 tRatio *= 2.0;
714 }
715
716 PRINT_DEBUG_2(CB << '\t' << tBRatio << '\t' << tRatio<<"\t"<<CGcoeff);
717 }
718
719 else
720 {
721 tRatio=tBRatio;
722 PRINT_DEBUG_2(tBRatio << '\t' << tRatio);
723 }
724 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), -1);
725 if (mDB->GetParticleType(tDaughter1)->GetMass() +
726 mDB->GetParticleType(tDaughter2)->GetMass()
727 < mDB->GetParticleType(tFather)->GetMass())
728 {
729 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
730 PRINT_DEBUG_2("Added channel " << newChannel << " " << mDB->GetParticleTypeIndex(tFather) << " " << mDB->GetParticleTypeIndex(tDaughter1) << " " << mDB->GetParticleTypeIndex(tDaughter2));
6750cf94 731 delete newChannel;
2e967919 732 }
733 else
734 {
735
736 PRINT_DEBUG_2("Masses do not match! Not adding channel " << newChannel);
d58024dc 737
738 delete newChannel;
2e967919 739 }
740 }
741 else {
742 PRINT_MESSAGE("Did not find the father particle: " << tFather);
743 PRINT_MESSAGE("Not adding channel");
744 }
745 }
746 }
747 in2.close();
748 }
749 else {
750 PRINT_MESSAGE("File "<<(mInputDir+"/decays.data").Data()<<" with particle decay channels not found!");
751 PRINT_MESSAGE("No particle decays will be simulated");
752 }
753}
754
755double
756Parser::ClebschGordan(double aJot, double aEm, double aJot1, double aEm1, double aJot2, double aEm2)
757{
758 int mint, maxt;
759 double cgc = 0.0;
760 int titer;
761 double coef;
762
763 maxt = lrint(aJot1 + aJot2 - aJot);
764 mint = 0;
765 if (lrint(aJot1 - aEm1) < maxt) maxt = lrint(aJot1 - aEm1);
766 if (lrint(aJot2 + aEm2) < maxt) maxt = lrint(aJot2 + aEm2);
767 if (lrint(-(aJot-aJot2+aEm1)) > mint) mint = lrint(-(aJot-aJot2+aEm1));
768 if (lrint(-(aJot-aJot1-aEm2)) > mint) mint = lrint(-(aJot-aJot1-aEm2));
769
770 PRINT_DEBUG_3("mint " << mint << " " << aJot1 << " " << aEm1);
771 PRINT_DEBUG_3("maxt " << maxt << " " << aJot2 << " " << aEm2);
772
773 for (titer = mint; titer<=maxt; titer ++)
774 {
775 coef = TMath::Power(-1, titer);
776 PRINT_DEBUG_3("coef1 " << coef);
777 coef *= TMath::Sqrt((2*aJot+1)*
778 factorials[lrint(aJot1+aEm1)] *
779 factorials[lrint(aJot1-aEm1)] *
780 factorials[lrint(aJot2+aEm2)] *
781 factorials[lrint(aJot2-aEm2)] *
782 factorials[lrint(aJot+aEm)] *
783 factorials[lrint(aJot-aEm)]);
784 PRINT_DEBUG_3("coef2 " << coef);
785 coef /= (factorials[titer] *
786 factorials[lrint(aJot1+aJot2-aJot-titer)] *
787 factorials[lrint(aJot1-aEm1-titer)] *
788 factorials[lrint(aJot2+aEm2-titer)] *
789 factorials[lrint(aJot-aJot2+aEm1+titer)] *
790 factorials[lrint(aJot-aJot1-aEm2+titer)]);
791 PRINT_DEBUG_3("coef3 " << coef);
792
793 cgc += coef;
794 }
795
796 cgc *= DeltaJ(aJot1, aJot2, aJot);
797
798 return cgc;
799}
800
801double
802Parser::DeltaJ(double aJot1, double aJot2, double aJot)
803{
804 double res = TMath::Sqrt(1.0 *
805 factorials[lrint(aJot1+aJot2-aJot)] *
806 factorials[lrint(aJot1-aJot2+aJot)] *
807 factorials[lrint(-aJot1+aJot2+aJot)] /
808 factorials[lrint(aJot1+aJot2+aJot+1)]);
809
810 return res;
811}
812
813void
814Parser::ReadParameters()
815{
816 // Read the input directory
817 try {
818 mInputDir = sRPInstance->getPar("InputDirSHARE");
819 }
820 catch (STR tError) {
821 PRINT_DEBUG_1("Parser::ReadParameters - Caught exception " << tError);
822 PRINT_MESSAGE("Did not find SHARE input file location.");
823 PRINT_MESSAGE("Using default: '../share'");
824 mInputDir = "../share";
825 }
826}