Fix delete
[u/mrichter/AliRoot.git] / TTherminator / Therminator / Parser.cxx
CommitLineData
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
302 char *tLBrackert, *tFirstComma, *tSecondComma, *tThirdComma, *tRBracket;
2e967919 303
304 tLBrackert = strchr(str,'[');
305 tFirstComma = strchr(str,',');
306 tSecondComma = strchr(tFirstComma+1,',');
307 tThirdComma = strchr(tSecondComma+1,',');
308 tRBracket = strchr(tThirdComma,']');
309
310 if (!(tLBrackert && tFirstComma && tSecondComma && tThirdComma && tRBracket))
311 PRINT_DEBUG_1("Malformed line!: " << str);
312
f8777da0 313 char *tFather = new char[tFirstComma-tLBrackert];
314 strncpy(tFather, tLBrackert+1, tFirstComma-tLBrackert-1);
315 char *tDaughter1 = new char[tSecondComma-tFirstComma];
316 strncpy(tDaughter1, tFirstComma+1, tSecondComma-tFirstComma-1);
317 char *tDaughter2 = new char[tThirdComma-tSecondComma];
318 strncpy(tDaughter2, tSecondComma+1, tThirdComma-tSecondComma-1);
319 char *tBRatio = new char[tRBracket-tThirdComma];
320 strncpy(tBRatio, tThirdComma+1, tRBracket-tThirdComma-1);
2e967919 321
322 // Getting the ratio
323 char *tMiddle, *tRatComponent;
324 double tRatio = 1.0;
325
326 tMiddle = strchr(tBRatio,'_');
327 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
328 while(tMiddle)
329 {
f8777da0 330 tRatComponent = new char[tMiddle-tBRatio+1];
331 strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
2e967919 332 if (strchr(tRatComponent,'/'))
333 tRatio *= atof(tRatComponent)/atof(tRatComponent+2);
334 else
335 tRatio *= atof(tRatComponent);
336 tBRatio = tMiddle+1;
337 tMiddle = strchr(tBRatio,'_');
338 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
f8777da0 339 delete [] tRatComponent;
2e967919 340 }
341 if (strchr(tBRatio,'/'))
342 tRatio *= atof(tBRatio)/atof(tBRatio+2);
343 else
344 tRatio *= atof(tBRatio);
09b7c66c 345
8e85ac49 346 delete [] tFather;
347 delete [] tDaughter1;
348 delete [] tDaughter2;
349 delete [] tBRatio;
2e967919 350 }
351
352 //THREE-BODY DECAYS
353 j++; //because se3[]
354 if(str[0] == 's' && str[1] == 'e' && str[2] == '3' && str[3] == '[')
355 {
356 for(;;)
357 {
358 if(str[j] == ',')
359 {
360 j++; //to skip ","
361 break;
362 }
363 str1[tIter++]=str[j++]; //name
364 }
365
366 for(tIter=0;tIter<369;tIter++)
367 {
368 if(check(str1,mNameBuffer[tIter]))
369 {
370 mDecayBuffer[tIter][1]++;
371 break;
372 }
373 }
374 }
375
376
377 }
378 ////// END OF "i200STAR.m"//////
379
380 ParticleType *tPartBuf;
381 int tNum, tPart;
382
383 for(tPart=0;tPart<mParticleCount;tPart++)
384 {
385 tPartBuf = new ParticleType();
386 tPartBuf->SetName(mNameBuffer[tPart]);
387 tPartBuf->SetMass(mMassBuffer[tPart]);
388 tPartBuf->SetGamma(mGammaBuffer[tPart]);
389 tPartBuf->SetSpin(mSpinBuffer[tPart]);
390 tPartBuf->SetBarionN(mBarionBuffer[tPart]);
391 tPartBuf->SetStrangeness(mStrangeBuffer[tPart]);
392 tPartBuf->SetI3(mI3Buffer[tPart]);
393 tPartBuf->SetDecayChannelCount2(mDecayBuffer[tPart][0]);
394 tPartBuf->SetDecayChannelCount3(mDecayBuffer[tPart][1]);
395 tPartBuf->SetNumber(tPart);
396 tNum = mDB->AddParticleType(tPartBuf);
397 }
398
399 ifstream in2("i200STAR.m");
400 while (in2.getline(str,200))
401 {
402 tIter=0;
403 //TWO-BODY DECAYS
404 if(str[0] == 's' && str[1] == 'e' && str[2] == '[')
405 {
406 // Reading in the decay channels
407 char *tLBrackert, *tFirstComma, *tSecondComma, *tThirdComma, *tRBracket;
2e967919 408
409 tLBrackert = strchr(str,'[');
410 tFirstComma = strchr(str,',');
411 tSecondComma = strchr(tFirstComma+1,',');
412 tThirdComma = strchr(tSecondComma+1,',');
413 tRBracket = strchr(tThirdComma,']');
414 if (!(tLBrackert && tFirstComma && tSecondComma && tThirdComma && tRBracket))
415 PRINT_DEBUG_1("Malformed line!: " << str);
416
f8777da0 417 char *tFather = new char[tFirstComma-tLBrackert];
418 strncpy(tFather, tLBrackert+1, tFirstComma-tLBrackert-1);
419 char *tDaughter1 = new char[tSecondComma-tFirstComma];
420 strncpy(tDaughter1, tFirstComma+1, tSecondComma-tFirstComma-1);
421 char *tDaughter2 = new char[tThirdComma-tSecondComma];
422 strncpy(tDaughter2, tSecondComma+1, tThirdComma-tSecondComma-1);
423 char *tBRatio = new char[tRBracket-tThirdComma];
424 strncpy(tBRatio, tThirdComma+1, tRBracket-tThirdComma-1);
2e967919 425
426 // Getting the ratio
427 char *tMiddle, *tRatComponent;
428 double tRatio = 1.0;
429
430 tMiddle = strchr(tBRatio,'_');
431 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
432 while(tMiddle)
433 {
f8777da0 434 tRatComponent = new char[tMiddle-tBRatio];
435 strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
2e967919 436 if (strchr(tRatComponent,'/'))
437 tRatio *= atof(tRatComponent)/atof(tRatComponent+2);
438 else
439 tRatio *= atof(tRatComponent);
440 tBRatio = tMiddle+1;
441 tMiddle = strchr(tBRatio,'_');
442 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
f8777da0 443 delete [] tRatComponent;
2e967919 444 }
445 if (strchr(tBRatio,'/'))
446 tRatio *= atof(tBRatio)/atof(tBRatio+2);
447 else
448 tRatio *= atof(tBRatio);
449
450 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), -1);
451 // if (mDB->GetParticleType(tDaughter1)->GetMass() +
452 // mDB->GetParticleType(tDaughter2)->GetMass()
453 // < mDB->GetParticleType(tFather)->GetMass()) {
454 // (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
455 // }
456 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
09b7c66c 457
0cf15e65 458 delete [] tFather;
459 delete [] tDaughter1;
460 delete [] tDaughter2;
0cf15e65 461 delete [] tBRatio;
462
09b7c66c 463 delete newChannel;
2e967919 464 }
465
466 if(str[0] == 's' && str[1] == 'e' && str[2] == '3')
467 {
468 // Reading in the decay channels
469 char *tLBrackert, *tFirstComma, *tSecondComma, *tThirdComma, *tFourthComma, *tRBracket;
2e967919 470
471 tLBrackert = strchr(str,'[');
472 tFirstComma = strchr(str,',');
473 tSecondComma = strchr(tFirstComma+1,',');
474 tThirdComma = strchr(tSecondComma+1,',');
475 tFourthComma = strchr(tThirdComma+1,',');
476 tRBracket = strchr(tThirdComma,']');
477
478 if (!(tLBrackert && tFirstComma && tSecondComma && tThirdComma && tFourthComma && tRBracket))
479 PRINT_DEBUG_1("Malformed line!: " << str);
480
f8777da0 481 char *tFather = new char[tFirstComma-tLBrackert];
482 strncpy(tFather, tLBrackert+1, tFirstComma-tLBrackert-1);
483 char *tDaughter1 = new char[tSecondComma-tFirstComma];
484 strncpy(tDaughter1, tFirstComma+1, tSecondComma-tFirstComma-1);
485 char *tDaughter2 = new char[tThirdComma-tSecondComma];
486 strncpy(tDaughter2, tSecondComma+1, tThirdComma-tSecondComma-1);
487 char *tDaughter3 = new char[tFourthComma-tThirdComma];
488 strncpy(tDaughter3, tThirdComma+1, tFourthComma-tThirdComma-1);
489 char *tBRatio = new char[tRBracket-tFourthComma];
490 strncpy(tBRatio, tFourthComma+1, tRBracket-tFourthComma-1);
2e967919 491
492 // Getting the ratio
493 char *tMiddle, *tRatComponent;
494 double tRatio = 1.0;
495
496 tMiddle = strchr(tBRatio,'_');
497 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
498 while(tMiddle)
499 {
f8777da0 500 tRatComponent = new char[tMiddle-tBRatio+1];
501 strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
2e967919 502 if (strchr(tRatComponent,'/'))
503 tRatio *= atof(tRatComponent)/atof(tRatComponent+2);
504 else
505 tRatio *= atof(tRatComponent);
506 tBRatio = tMiddle+1;
507 tMiddle = strchr(tBRatio,'_');
508 if (!tMiddle) tMiddle = strchr(tBRatio,' ');
f8777da0 509 delete [] tRatComponent;
2e967919 510 }
511 if (strchr(tBRatio,'/'))
512 tRatio *= atof(tBRatio)/atof(tBRatio+2);
513 else
514 tRatio *= atof(tBRatio);
515
516 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), mDB->GetParticleTypeIndex(tDaughter3));
517 // if (mDB->GetParticleType(tDaughter1)->GetMass() +
518 // mDB->GetParticleType(tDaughter2)->GetMass() +
519 // mDB->GetParticleType(tDaughter3)->GetMass()
520 // < mDB->GetParticleType(tFather)->GetMass())
521 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
d58024dc 522
0cf15e65 523 delete [] tFather;
524 delete [] tDaughter1;
525 delete [] tDaughter2;
526 delete [] tDaughter3;
527 delete [] tBRatio;
2e967919 528 }
529 }
530
531 ifstream in3("pdgcodes.m");
532 while (in3.getline(str,200))
533 {
534 string tName;
535 int tCode;
536
537 std::stringstream tIS(str);
538 tIS >> tName >> tCode;
539 mDB->GetParticleType(tName)->SetPDGCode(tCode);
540 }
541
542}
543
544
545void Parser::ReadShare()
546{
547 char str[50];
548 char str1[200];
549
550 ParticleType *tPartBuf;
551 int tNum;
552
553 PRINT_DEBUG_1("Reading from |"<<(mInputDir+"/"+"particles.data").Data()<<"|");
554 ifstream in((mInputDir+"/"+"particles.data").Data());
555
556 int number=0;
557 if ((in) && (in.is_open()))
558 {
559 //START OF HEAD-LINE
560 in.ignore(200,'\n');
561 in.ignore(200,'\n');
562 in.ignore(200,'\n');
563 //END OF HEAD-LINE
564
565 while (in>>str)
566 {
567 if (/*(*str == '#')||*/(*str<65)||(*str>122))
568 {
569 in.getline(str1,200);
570 continue;
571 }
572 double mass, gamma, spin, I3, I, q, s, aq, as, c, ac, mc;
573
574 in>>mass>>gamma>>spin>>I>>I3>>q>>s>>aq>>as>>c>>ac>>mc;
575 number++;
576 PRINT_DEBUG_2(number<<" "<<str<<" "<<mass<<" "<<gamma<<" "<<spin<<" "<<I<<" "<<I3<<" "<<q<<" "<<aq<<" "<<s<<" "<<as<<" "<<c<<" "<<ac<<" "<<mc);
577
578 tPartBuf = new ParticleType();
579 tPartBuf->SetName(str);
580 tPartBuf->SetMass(mass);
581 tPartBuf->SetGamma(gamma);
582 tPartBuf->SetSpin(spin);
583 tPartBuf->SetBarionN((int) ((q+s+c)/3. - (aq+as+ac)/3.) );
584 tPartBuf->SetCharmN((int) (c - ac));
585 tPartBuf->SetStrangeness((int) (as-s));
586 tPartBuf->SetI(I);
587 tPartBuf->SetI3(I3);
588 tPartBuf->SetPDGCode((int) mc);
589 tPartBuf->SetNumber(number);
590 tNum = mDB->AddParticleType(tPartBuf);
591 }
592 in.close();
593 }
594 else
595 {
596 PRINT_MESSAGE("File "<<(mInputDir+"/"+"particles.data").Data()<<" containing particle data not found!");
597 PRINT_MESSAGE("Please set the correct path to this file in the input parameter file");
598 PRINT_MESSAGE("Aborting!");
599 exit(0);
600 }
601
602 ifstream in2((mInputDir+"/decays.data").Data());
603 if ((in2) && (in2.is_open()))
604 {
605 //START OF HEAD-LINE
606 in2.ignore(200,'\n');
607 in2.ignore(200,'\n');
608 in2.ignore(200,'\n');
609 //END OF HEAD-LINE
610
f12dabf0 611 char tFather[50], tDaughter1[50], tDaughter2[50], tDaughter3[50];
2e967919 612 double tBRatio, tRatio;
613 int CGcoeff; // complete branching ratio by Clebsch-Gordan coefficient: 0-no 1-yes
614
615 while (in2>>str)
616 {
617 if (*str == '#')
618 {
619 in2.getline(str1,200);
620 continue;
621 }
622 in2>>tDaughter1>>tDaughter2>>tDaughter3;
623 if (!mDB->ExistsParticleType(tDaughter1)) {
624 PRINT_MESSAGE("Did not find the daughter 1 particle: " << tDaughter1);
625 PRINT_MESSAGE("Not adding channel");
626 in2.getline(str1,200);
627 continue;
628 }
629 if (!mDB->ExistsParticleType(tDaughter2)) {
630 PRINT_MESSAGE("Did not find the daughter 2 particle: " << tDaughter2);
631 PRINT_MESSAGE("Not adding channel");
632 in2.getline(str1,200);
633 continue;
634 }
635 if ((*tDaughter3>65)&&(*tDaughter3<122)&&(!mDB->ExistsParticleType(tDaughter3))) {
636 PRINT_MESSAGE("Did not find the daughter 3 particle: " << tDaughter3);
637 PRINT_MESSAGE("Not adding channel");
638 in2.getline(str1,200);
639 continue;
640 }
641
642 strcpy(tFather,str);
643 PRINT_DEBUG_2(tFather<<"\t"<<tDaughter1<<"\t"<<tDaughter2<<"\t");
644 if ((*tDaughter3>65)&&(*tDaughter3<122)) // check if first char is a letter - if yes then 3-body decay
645 {
646 in2>>tBRatio>>CGcoeff;
647 PRINT_DEBUG_2(tDaughter3<<" (3-body decay)\t");
648 if (mDB->ExistsParticleType(tFather)) {
649 mDB->GetParticleType(tFather)->SetDecayChannelCount3(mDB->GetParticleType(tFather)->GetDecayChannelCount3()+1);
650
651 tRatio=tBRatio;
652 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), mDB->GetParticleTypeIndex(tDaughter3));
653 if (mDB->GetParticleType(tDaughter1)->GetMass() +
654 mDB->GetParticleType(tDaughter2)->GetMass() +
655 mDB->GetParticleType(tDaughter3)->GetMass()
656 < mDB->GetParticleType(tFather)->GetMass())
657 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
09b7c66c 658
659 delete newChannel;
2e967919 660
661 tRatio=tBRatio;
662 PRINT_DEBUG_2(tBRatio << '\t' << tRatio);
663 }
664 else {
665 PRINT_MESSAGE("Did not find the father particle: " << tFather);
666 PRINT_MESSAGE("Not adding channel");
667 }
668 }
669 else // 2-body decay
670 {
671 tBRatio=atof(tDaughter3);
672
673 in2>>CGcoeff;
674 PRINT_DEBUG_2(" (2-body decay)\t");
675 if (mDB->ExistsParticleType(tFather)) {
676 mDB->GetParticleType(tFather)->SetDecayChannelCount2(mDB->GetParticleType(tFather)->GetDecayChannelCount2()+1);
677
678 // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
679 if (CGcoeff) // complete branching ratio by Clebsch-Gordan coefficient
680 {
681 double j1, m1, j2, m2, J, M, CB;
682 J=mDB->GetParticleType(tFather)->GetI();
683 M=mDB->GetParticleType(tFather)->GetI3();
684 j1=mDB->GetParticleType(tDaughter1)->GetI();
685 m1=mDB->GetParticleType(tDaughter1)->GetI3();
686 j2=mDB->GetParticleType(tDaughter2)->GetI();
687 m2=mDB->GetParticleType(tDaughter2)->GetI3();
688 PRINT_DEBUG_2(" "<<J<<" "<<M<<" "<<j1<<" "<<m1<<" "<<j2<<" "<<m2);
689
690 CB = ClebschGordan(J, M, j1, m1, j2, m2);
691 tRatio = CB*CB * tBRatio;
692
693 // Multiply the Clebsh by two?
694 // The same spin, mass, strangeness
695 // and different I3?
696 if ((fabs(mDB->GetParticleType(tDaughter1)->GetSpin() - mDB->GetParticleType(tDaughter2)->GetSpin()) < 0.01) &&
697 (fabs(mDB->GetParticleType(tDaughter1)->GetMass() - mDB->GetParticleType(tDaughter2)->GetMass()) < 0.01) &&
698 (mDB->GetParticleType(tDaughter1)->GetStrangeness() == mDB->GetParticleType(tDaughter2)->GetStrangeness()) &&
699 (fabs(mDB->GetParticleType(tDaughter1)->GetI3() - mDB->GetParticleType(tDaughter2)->GetI3()) > 0.01))
700 {
701 PRINT_DEBUG_2("Multuplying Clebsch by two for " << tFather << "->" << tDaughter1 << "+" << tDaughter2);
702 tRatio *= 2.0;
703 }
704
705 PRINT_DEBUG_2(CB << '\t' << tBRatio << '\t' << tRatio<<"\t"<<CGcoeff);
706 }
707
708 else
709 {
710 tRatio=tBRatio;
711 PRINT_DEBUG_2(tBRatio << '\t' << tRatio);
712 }
713 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), -1);
714 if (mDB->GetParticleType(tDaughter1)->GetMass() +
715 mDB->GetParticleType(tDaughter2)->GetMass()
716 < mDB->GetParticleType(tFather)->GetMass())
717 {
718 (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
719 PRINT_DEBUG_2("Added channel " << newChannel << " " << mDB->GetParticleTypeIndex(tFather) << " " << mDB->GetParticleTypeIndex(tDaughter1) << " " << mDB->GetParticleTypeIndex(tDaughter2));
720 }
721 else
722 {
723
724 PRINT_DEBUG_2("Masses do not match! Not adding channel " << newChannel);
d58024dc 725
726 delete newChannel;
2e967919 727 }
728 }
729 else {
730 PRINT_MESSAGE("Did not find the father particle: " << tFather);
731 PRINT_MESSAGE("Not adding channel");
732 }
733 }
734 }
735 in2.close();
736 }
737 else {
738 PRINT_MESSAGE("File "<<(mInputDir+"/decays.data").Data()<<" with particle decay channels not found!");
739 PRINT_MESSAGE("No particle decays will be simulated");
740 }
741}
742
743double
744Parser::ClebschGordan(double aJot, double aEm, double aJot1, double aEm1, double aJot2, double aEm2)
745{
746 int mint, maxt;
747 double cgc = 0.0;
748 int titer;
749 double coef;
750
751 maxt = lrint(aJot1 + aJot2 - aJot);
752 mint = 0;
753 if (lrint(aJot1 - aEm1) < maxt) maxt = lrint(aJot1 - aEm1);
754 if (lrint(aJot2 + aEm2) < maxt) maxt = lrint(aJot2 + aEm2);
755 if (lrint(-(aJot-aJot2+aEm1)) > mint) mint = lrint(-(aJot-aJot2+aEm1));
756 if (lrint(-(aJot-aJot1-aEm2)) > mint) mint = lrint(-(aJot-aJot1-aEm2));
757
758 PRINT_DEBUG_3("mint " << mint << " " << aJot1 << " " << aEm1);
759 PRINT_DEBUG_3("maxt " << maxt << " " << aJot2 << " " << aEm2);
760
761 for (titer = mint; titer<=maxt; titer ++)
762 {
763 coef = TMath::Power(-1, titer);
764 PRINT_DEBUG_3("coef1 " << coef);
765 coef *= TMath::Sqrt((2*aJot+1)*
766 factorials[lrint(aJot1+aEm1)] *
767 factorials[lrint(aJot1-aEm1)] *
768 factorials[lrint(aJot2+aEm2)] *
769 factorials[lrint(aJot2-aEm2)] *
770 factorials[lrint(aJot+aEm)] *
771 factorials[lrint(aJot-aEm)]);
772 PRINT_DEBUG_3("coef2 " << coef);
773 coef /= (factorials[titer] *
774 factorials[lrint(aJot1+aJot2-aJot-titer)] *
775 factorials[lrint(aJot1-aEm1-titer)] *
776 factorials[lrint(aJot2+aEm2-titer)] *
777 factorials[lrint(aJot-aJot2+aEm1+titer)] *
778 factorials[lrint(aJot-aJot1-aEm2+titer)]);
779 PRINT_DEBUG_3("coef3 " << coef);
780
781 cgc += coef;
782 }
783
784 cgc *= DeltaJ(aJot1, aJot2, aJot);
785
786 return cgc;
787}
788
789double
790Parser::DeltaJ(double aJot1, double aJot2, double aJot)
791{
792 double res = TMath::Sqrt(1.0 *
793 factorials[lrint(aJot1+aJot2-aJot)] *
794 factorials[lrint(aJot1-aJot2+aJot)] *
795 factorials[lrint(-aJot1+aJot2+aJot)] /
796 factorials[lrint(aJot1+aJot2+aJot+1)]);
797
798 return res;
799}
800
801void
802Parser::ReadParameters()
803{
804 // Read the input directory
805 try {
806 mInputDir = sRPInstance->getPar("InputDirSHARE");
807 }
808 catch (STR tError) {
809 PRINT_DEBUG_1("Parser::ReadParameters - Caught exception " << tError);
810 PRINT_MESSAGE("Did not find SHARE input file location.");
811 PRINT_MESSAGE("Using default: '../share'");
812 mInputDir = "../share";
813 }
814}