33756a318d1a93dd350c37f5018a3cb5ff7c61f2
[u/mrichter/AliRoot.git] / TTherminator / Therminator / Parser.cxx
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>
33 #include <cstring>
34
35 extern ReadPar *sRPInstance;
36
37 const double factorials[7] = {1.0, 1.0, 2.0, 6.0, 24.0, 120.0, 720.0 };
38
39 Parser::Parser(ParticleDB *aDB)
40 {
41   mDB = aDB;
42   ReadParameters();
43 }
44
45 Parser::~Parser()
46 {
47 }
48
49 int 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
61 int Parser::GetParticleCount()
62 {
63   return mParticleCount;
64 }
65
66 char * Parser::GetParticleName(int i)
67 {
68   return mNameBuffer[i];
69 }
70
71 double Parser::GetParticleMass(int i)
72 {
73   return mMassBuffer[i];
74 }
75
76 double Parser::GetParticleGamma(int i)
77 {
78   return mGammaBuffer[i];
79 }
80
81 double Parser::GetParticleSpin(int i)
82 {
83   return mSpinBuffer[i];
84 }
85
86 int Parser::GetParticleBarionN(int i)
87 {
88   return mBarionBuffer[i];
89 }
90
91 int Parser::GetParticleStrangeN(int i)
92 {
93   return mStrangeBuffer[i];
94 }
95
96 double Parser::GetParticleI3(int i)
97 {
98   return mI3Buffer[i];
99 }
100
101 int Parser::GetParticleDecayChannelCount(int i,int j)
102 {
103   return mDecayBuffer[i][j];
104 }
105
106 int Parser::GetParticleNumber(int i)
107 {
108   return mTypeCountBuffer[i];
109 }
110
111 void Parser::ReadInput()
112 {
113   int j,tPartIter=0,l,tIter2, tIter; //variables
114   char str[200];
115   char str1[200];
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;
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           
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);
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             {
330               tRatComponent = new char[tMiddle-tBRatio+1];
331               strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
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,' ');
339               delete [] tRatComponent;
340             }
341           if (strchr(tBRatio,'/'))
342             tRatio *= atof(tBRatio)/atof(tBRatio+2);
343           else
344             tRatio *= atof(tBRatio);
345
346           delete [] tFather;
347           delete [] tDaughter1;
348           delete [] tDaughter2;
349           delete [] tBRatio;
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;
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           
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);
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             {
434               tRatComponent = new char[tMiddle-tBRatio];
435               strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
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,' ');
443               delete [] tRatComponent;
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);
457
458           delete newChannel;
459         }
460       
461       if(str[0] == 's' && str[1] == 'e' && str[2] == '3')
462         {
463           // Reading in the decay channels
464           char *tLBrackert, *tFirstComma, *tSecondComma, *tThirdComma, *tFourthComma, *tRBracket;
465           
466           tLBrackert = strchr(str,'[');
467           tFirstComma = strchr(str,',');
468           tSecondComma = strchr(tFirstComma+1,',');
469           tThirdComma = strchr(tSecondComma+1,',');
470           tFourthComma = strchr(tThirdComma+1,',');
471           tRBracket = strchr(tThirdComma,']');
472
473           if (!(tLBrackert && tFirstComma && tSecondComma && tThirdComma && tFourthComma && tRBracket))
474             PRINT_DEBUG_1("Malformed line!: " << str);
475           
476           char *tFather = new char[tFirstComma-tLBrackert];
477           strncpy(tFather, tLBrackert+1,   tFirstComma-tLBrackert-1);
478           char *tDaughter1 = new char[tSecondComma-tFirstComma];
479           strncpy(tDaughter1, tFirstComma+1,  tSecondComma-tFirstComma-1);
480           char *tDaughter2 = new char[tThirdComma-tSecondComma];
481           strncpy(tDaughter2, tSecondComma+1, tThirdComma-tSecondComma-1);
482           char *tDaughter3 = new char[tFourthComma-tThirdComma];
483           strncpy(tDaughter3, tThirdComma+1,  tFourthComma-tThirdComma-1);
484           char *tBRatio = new char[tRBracket-tFourthComma];
485           strncpy(tBRatio, tFourthComma+1, tRBracket-tFourthComma-1);
486           
487           // Getting the ratio
488           char *tMiddle, *tRatComponent;
489           double tRatio = 1.0;
490           
491           tMiddle = strchr(tBRatio,'_');
492           if (!tMiddle) tMiddle = strchr(tBRatio,' ');
493           while(tMiddle)
494             {
495               tRatComponent = new char[tMiddle-tBRatio+1];
496               strncpy(tRatComponent, tBRatio, tMiddle-tBRatio);
497               if (strchr(tRatComponent,'/'))
498                 tRatio *= atof(tRatComponent)/atof(tRatComponent+2);
499               else
500                 tRatio *= atof(tRatComponent);
501               tBRatio = tMiddle+1;              
502               tMiddle = strchr(tBRatio,'_');
503               if (!tMiddle) tMiddle = strchr(tBRatio,' ');
504               delete [] tRatComponent;
505             }
506           if (strchr(tBRatio,'/'))
507             tRatio *= atof(tBRatio)/atof(tBRatio+2);
508           else
509             tRatio *= atof(tBRatio);
510           
511           DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), mDB->GetParticleTypeIndex(tDaughter3));
512           //      if (mDB->GetParticleType(tDaughter1)->GetMass() + 
513           //          mDB->GetParticleType(tDaughter2)->GetMass() +
514           //          mDB->GetParticleType(tDaughter3)->GetMass()
515           //          < mDB->GetParticleType(tFather)->GetMass())
516           (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
517         }
518     }
519
520   ifstream in3("pdgcodes.m");
521   while (in3.getline(str,200))
522     {
523       string tName;
524       int tCode;
525       
526       std::stringstream tIS(str);
527       tIS >> tName >> tCode;
528       mDB->GetParticleType(tName)->SetPDGCode(tCode);
529     }
530   
531 }
532
533
534 void Parser::ReadShare()
535 {
536   char str[50];
537   char str1[200];
538     
539   ParticleType *tPartBuf;
540   int tNum;
541            
542   PRINT_DEBUG_1("Reading from |"<<(mInputDir+"/"+"particles.data").Data()<<"|");
543   ifstream in((mInputDir+"/"+"particles.data").Data());
544     
545   int number=0;
546   if ((in) && (in.is_open()))
547     {
548       //START OF HEAD-LINE
549       in.ignore(200,'\n');
550       in.ignore(200,'\n');
551       in.ignore(200,'\n');
552       //END OF HEAD-LINE
553       
554       while (in>>str)
555         {
556           if (/*(*str == '#')||*/(*str<65)||(*str>122))
557             {
558               in.getline(str1,200);
559               continue;
560             }
561           double mass, gamma, spin, I3, I, q, s, aq, as, c, ac, mc;
562           
563           in>>mass>>gamma>>spin>>I>>I3>>q>>s>>aq>>as>>c>>ac>>mc;
564           number++;
565           PRINT_DEBUG_2(number<<" "<<str<<" "<<mass<<" "<<gamma<<" "<<spin<<" "<<I<<" "<<I3<<" "<<q<<" "<<aq<<" "<<s<<" "<<as<<" "<<c<<" "<<ac<<" "<<mc);
566           
567           tPartBuf = new ParticleType();
568           tPartBuf->SetName(str);
569           tPartBuf->SetMass(mass);
570           tPartBuf->SetGamma(gamma);
571           tPartBuf->SetSpin(spin);
572           tPartBuf->SetBarionN((int) ((q+s+c)/3. - (aq+as+ac)/3.) );
573           tPartBuf->SetCharmN((int) (c - ac));
574           tPartBuf->SetStrangeness((int) (as-s));
575           tPartBuf->SetI(I);
576           tPartBuf->SetI3(I3);
577           tPartBuf->SetPDGCode((int) mc);
578           tPartBuf->SetNumber(number);
579           tNum = mDB->AddParticleType(tPartBuf);
580         }
581       in.close();
582     }
583   else 
584     {
585       PRINT_MESSAGE("File "<<(mInputDir+"/"+"particles.data").Data()<<" containing particle data not found!");
586       PRINT_MESSAGE("Please set the correct path to this file in the input parameter file");
587       PRINT_MESSAGE("Aborting!");
588       exit(0);
589     }
590   
591   ifstream in2((mInputDir+"/decays.data").Data());
592   if ((in2) && (in2.is_open()))
593     {
594       //START OF HEAD-LINE
595       in2.ignore(200,'\n');
596       in2.ignore(200,'\n');
597       in2.ignore(200,'\n');
598       //END OF HEAD-LINE
599
600       char tFather[20], tDaughter1[20], tDaughter2[20], tDaughter3[20];
601       double tBRatio, tRatio;
602       int CGcoeff; // complete branching ratio by Clebsch-Gordan coefficient: 0-no 1-yes
603         
604       while (in2>>str)
605         {
606           if (*str == '#')
607             {
608               in2.getline(str1,200);
609               continue;
610             }
611           in2>>tDaughter1>>tDaughter2>>tDaughter3;
612           if (!mDB->ExistsParticleType(tDaughter1)) {
613             PRINT_MESSAGE("Did not find the daughter 1 particle: " << tDaughter1);
614             PRINT_MESSAGE("Not adding channel");
615             in2.getline(str1,200);
616             continue;
617           }
618           if (!mDB->ExistsParticleType(tDaughter2)) {
619             PRINT_MESSAGE("Did not find the daughter 2 particle: " << tDaughter2);
620             PRINT_MESSAGE("Not adding channel");
621             in2.getline(str1,200);
622             continue;
623           }
624           if ((*tDaughter3>65)&&(*tDaughter3<122)&&(!mDB->ExistsParticleType(tDaughter3))) {
625             PRINT_MESSAGE("Did not find the daughter 3 particle: " << tDaughter3);
626             PRINT_MESSAGE("Not adding channel");
627             in2.getline(str1,200);
628             continue;
629           }
630
631           strcpy(tFather,str);
632           PRINT_DEBUG_2(tFather<<"\t"<<tDaughter1<<"\t"<<tDaughter2<<"\t");
633           if ((*tDaughter3>65)&&(*tDaughter3<122)) // check if first char is a letter - if yes then 3-body decay
634             {
635               in2>>tBRatio>>CGcoeff;
636               PRINT_DEBUG_2(tDaughter3<<" (3-body decay)\t");
637               if (mDB->ExistsParticleType(tFather)) {
638                 mDB->GetParticleType(tFather)->SetDecayChannelCount3(mDB->GetParticleType(tFather)->GetDecayChannelCount3()+1);
639               
640                 tRatio=tBRatio;
641                 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), mDB->GetParticleTypeIndex(tDaughter3));
642                 if (mDB->GetParticleType(tDaughter1)->GetMass() + 
643                     mDB->GetParticleType(tDaughter2)->GetMass() +
644                     mDB->GetParticleType(tDaughter3)->GetMass()
645                     < mDB->GetParticleType(tFather)->GetMass())
646                   (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
647
648                 delete newChannel;
649                 
650                 tRatio=tBRatio;
651                 PRINT_DEBUG_2(tBRatio << '\t' << tRatio);
652               }
653               else {
654                 PRINT_MESSAGE("Did not find the father particle: " << tFather);
655                 PRINT_MESSAGE("Not adding channel");
656               }
657             }
658           else // 2-body decay      
659             {
660               tBRatio=atof(tDaughter3);
661             
662               in2>>CGcoeff;
663               PRINT_DEBUG_2(" (2-body decay)\t");
664               if (mDB->ExistsParticleType(tFather)) {
665                 mDB->GetParticleType(tFather)->SetDecayChannelCount2(mDB->GetParticleType(tFather)->GetDecayChannelCount2()+1);
666                 
667                 // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
668                 if (CGcoeff) // complete branching ratio by Clebsch-Gordan coefficient
669                   {
670                     double j1, m1, j2, m2, J, M, CB;
671                     J=mDB->GetParticleType(tFather)->GetI();
672                     M=mDB->GetParticleType(tFather)->GetI3();
673                     j1=mDB->GetParticleType(tDaughter1)->GetI();
674                     m1=mDB->GetParticleType(tDaughter1)->GetI3();
675                     j2=mDB->GetParticleType(tDaughter2)->GetI();
676                     m2=mDB->GetParticleType(tDaughter2)->GetI3();
677                     PRINT_DEBUG_2(" "<<J<<" "<<M<<" "<<j1<<" "<<m1<<" "<<j2<<" "<<m2);
678                     
679                     CB = ClebschGordan(J, M, j1, m1, j2, m2);
680                     tRatio = CB*CB * tBRatio;
681                     
682                     // Multiply the Clebsh by two?
683                     // The same spin, mass, strangeness
684                     // and different I3?
685                     if ((fabs(mDB->GetParticleType(tDaughter1)->GetSpin() - mDB->GetParticleType(tDaughter2)->GetSpin()) < 0.01) &&
686                         (fabs(mDB->GetParticleType(tDaughter1)->GetMass() - mDB->GetParticleType(tDaughter2)->GetMass()) < 0.01) &&
687                         (mDB->GetParticleType(tDaughter1)->GetStrangeness() == mDB->GetParticleType(tDaughter2)->GetStrangeness()) &&
688                         (fabs(mDB->GetParticleType(tDaughter1)->GetI3() - mDB->GetParticleType(tDaughter2)->GetI3()) > 0.01))
689                       {
690                         PRINT_DEBUG_2("Multuplying Clebsch by two for " << tFather << "->" << tDaughter1 << "+" << tDaughter2);
691                         tRatio *= 2.0;
692                       }
693                     
694                     PRINT_DEBUG_2(CB << '\t' << tBRatio << '\t' << tRatio<<"\t"<<CGcoeff);
695                   }
696                 
697                 else
698                   {
699                     tRatio=tBRatio;
700                     PRINT_DEBUG_2(tBRatio << '\t' << tRatio);
701                   }
702                 DecayChannel *newChannel = new DecayChannel(tRatio, mDB->GetParticleTypeIndex(tDaughter1), mDB->GetParticleTypeIndex(tDaughter2), -1);
703                 if (mDB->GetParticleType(tDaughter1)->GetMass() + 
704                     mDB->GetParticleType(tDaughter2)->GetMass()
705                     < mDB->GetParticleType(tFather)->GetMass()) 
706                   {
707                     (mDB->GetParticleType(tFather))->AddDecayChannel(*newChannel);
708                     PRINT_DEBUG_2("Added channel " << newChannel << " " << mDB->GetParticleTypeIndex(tFather) << " " << mDB->GetParticleTypeIndex(tDaughter1) << " " << mDB->GetParticleTypeIndex(tDaughter2));
709                   }
710                 else 
711                   {
712                     
713                     PRINT_DEBUG_2("Masses do not match! Not adding channel " << newChannel);
714                   }
715               }
716               else {
717                 PRINT_MESSAGE("Did not find the father particle: " << tFather);
718                 PRINT_MESSAGE("Not adding channel");
719               }
720             }
721         }
722       in2.close();
723     }
724   else {
725     PRINT_MESSAGE("File "<<(mInputDir+"/decays.data").Data()<<" with particle decay channels not found!");
726     PRINT_MESSAGE("No particle decays will be simulated");
727   }
728 }
729
730 double 
731 Parser::ClebschGordan(double aJot, double aEm, double aJot1, double aEm1, double aJot2, double aEm2)
732 {
733   int mint, maxt;
734   double cgc = 0.0;
735   int titer;
736   double coef;
737
738   maxt = lrint(aJot1 + aJot2 - aJot);
739   mint = 0;
740   if (lrint(aJot1 - aEm1) < maxt) maxt = lrint(aJot1 - aEm1);
741   if (lrint(aJot2 + aEm2) < maxt) maxt = lrint(aJot2 + aEm2);
742   if (lrint(-(aJot-aJot2+aEm1)) > mint) mint = lrint(-(aJot-aJot2+aEm1));
743   if (lrint(-(aJot-aJot1-aEm2)) > mint) mint = lrint(-(aJot-aJot1-aEm2));
744
745   PRINT_DEBUG_3("mint " << mint << " " <<  aJot1 << " " << aEm1);
746   PRINT_DEBUG_3("maxt " << maxt << " " <<  aJot2 << " " << aEm2);
747
748   for (titer = mint; titer<=maxt; titer ++)
749     {
750       coef = TMath::Power(-1, titer);
751       PRINT_DEBUG_3("coef1 " << coef); 
752       coef *= TMath::Sqrt((2*aJot+1)*
753                           factorials[lrint(aJot1+aEm1)] *
754                           factorials[lrint(aJot1-aEm1)] *
755                           factorials[lrint(aJot2+aEm2)] *
756                           factorials[lrint(aJot2-aEm2)] *
757                           factorials[lrint(aJot+aEm)] *
758                           factorials[lrint(aJot-aEm)]);
759       PRINT_DEBUG_3("coef2 " << coef); 
760       coef /= (factorials[titer] *
761                factorials[lrint(aJot1+aJot2-aJot-titer)] *
762                factorials[lrint(aJot1-aEm1-titer)] *
763                factorials[lrint(aJot2+aEm2-titer)] *
764                factorials[lrint(aJot-aJot2+aEm1+titer)] *
765                factorials[lrint(aJot-aJot1-aEm2+titer)]);
766       PRINT_DEBUG_3("coef3 " << coef); 
767       
768       cgc += coef;
769     }
770
771   cgc *= DeltaJ(aJot1, aJot2, aJot);
772
773   return cgc;
774 }
775
776 double 
777 Parser::DeltaJ(double aJot1, double aJot2, double aJot)
778 {
779   double res = TMath::Sqrt(1.0 * 
780                            factorials[lrint(aJot1+aJot2-aJot)] * 
781                            factorials[lrint(aJot1-aJot2+aJot)] * 
782                            factorials[lrint(-aJot1+aJot2+aJot)] / 
783                            factorials[lrint(aJot1+aJot2+aJot+1)]);
784   
785   return res;
786 }
787
788 void   
789 Parser::ReadParameters()
790 {
791   // Read the input directory
792   try {
793     mInputDir = sRPInstance->getPar("InputDirSHARE");
794   }
795   catch (STR tError) {
796     PRINT_DEBUG_1("Parser::ReadParameters - Caught exception " << tError);
797     PRINT_MESSAGE("Did not find SHARE input file location.");
798     PRINT_MESSAGE("Using default: '../share'");
799     mInputDir = "../share";
800   }
801 }