TTherminator/TTherminator.cxx

   1 ///////////////////////////////////////////////////////////////////////////////
   2 //                                                                           //
   3 // TTherminator: global interface class to the Therminator model.            //
   4 // Initialized global variables and runs the event generation                //
   5 //                                                                           //
   6 ///////////////////////////////////////////////////////////////////////////////
   7 /******************************************************************************
   8  *                      T H E R M I N A T O R                                 *
   9  *                   THERMal heavy-IoN generATOR                              *
  10  *                           version 1.0                                      *
  11  *                                                                            *
  12  * Authors of the model: Wojciech Broniowski, Wojciech.Broniowski@ifj.edu.pl, *
  13  *                       Wojciech Florkowski, Wojciech.Florkowski@ifj.edu.pl  *
  14  * Authors of the code:  Adam Kisiel, kisiel@if.pw.edu.pl                     *
  15  *                       Tomasz Taluc, ttaluc@if.pw.edu.pl                    *
  16  * Code designers: Adam Kisiel, Tomasz Taluc, Wojciech Broniowski,            *
  17  *                 Wojciech Florkowski                                        *
  18  *                                                                            *
  19  * For the detailed description of the program and furhter references         *
  20  * to the description of the model plesase refer to: nucl-th/0504047,         *
  21  * accessibile at: http://www.arxiv.org/nucl-th/0504047                       *
  22  *                                                                            *
  23  * Homepage: http://hirg.if.pw.edu.pl/en/therminator/                         *
  24  *                                                                            *
  25  * This code can be freely used and redistributed. However if you decide to   *
  26  * make modifications to the code, please contact the authors, especially     *
  27  * if you plan to publish the results obtained with such modified code.       *
  28  * Any publication of results obtained using this code must include the       *
  29  * reference to nucl-th/0504047 and the published version of it, when         *
  30  * available.                                                                 *
  31  *                                                                            *
  32  *****************************************************************************/
  33 #include <TTherminator.h>
  34 #include <fstream>
  35 #include <TDatabasePDG.h>
  36 #include <TParticle.h>
  37 #include <TClonesArray.h>
  38
  39 ReadPar *sRPInstance;
  40 STR      sRPFileName;
  41 int      sNumEvents;
  42 int      sRunType;
  43 int      sTables;
  44 int      sModel;
  45 int      sIntegrateSample;
  46
  47 ClassImp(TTherminator)
  48
  49 TTherminator::TTherminator():
  50   fCalka(0),
  51   fEvent(0),
  52   fPartDB(0)
  53 {
  54   // Default constructor
  55   fPartDB = new ParticleDB();
  56 }
  57 TTherminator::TTherminator(const TTherminator & therm) :
  58   TGenerator(therm),
  59   fCalka(0),
  60   fEvent(0),
  61   fPartDB(0)
  62 {
  63   // Copy constructor
  64   fPartDB = new ParticleDB();
  65 }
  66 TTherminator::~TTherminator()
  67 {
  68   // Destructor
  69   if (sRPInstance) delete sRPInstance;
  70   if (fEvent) delete fEvent;
  71   if (fCalka) delete fCalka;
  72   if (fPartDB) delete fPartDB;
  73 }
  74
  75 void TTherminator::ReadParameters()
  76 {
  77   // Read in global model parameters
  78   STR tModel;
  79   STR tTable;
  80
  81   try {
  82     sNumEvents = atoi(sRPInstance->getPar("NumberOfEvents").Data());
  83     tModel = sRPInstance->getPar("FreezeOutModel");
  84     if (tModel.Contains("SingleFreezeOut"))
  85       sModel = 0;
  86 /*MCH begin*/
  87     else if (tModel.Contains("Lhyquid3D"))
  88       sModel = 10;
  89     else if (tModel.Contains("Lhyquid2D"))
  90       sModel = 11;
  91 /*MCH end*/
  92     else if (tModel.Contains("BlastWaveVTDelay"))
  93       sModel = 6;
  94     else if (tModel.Contains("BlastWaveVT"))
  95       sModel = 2;
  96     else if (tModel.Contains("BlastWaveVLinearFormation"))
  97       sModel = 7;
  98     else if (tModel.Contains("BlastWaveVLinearDelay"))
  99       sModel = 8;
 100     else if (tModel.Contains("BlastWaveVLinear"))
 101       sModel = 4;
 102     else if (tModel.Contains("FiniteHydro"))
 103       sModel = 5;
 104     else {
 105       PRINT_MESSAGE("Unknown model type: " << tModel.Data());
 106       PRINT_MESSAGE("Please provide the proper name");
 107       exit(0);
 108     }
 109     if (atoi(sRPInstance->getPar("Randomize").Data()) == 1)
 110       sRunType = 4;
 111     else
 112       sRunType = 3;
 113     tTable = sRPInstance->getPar("TableType");
 114     if (tTable.Contains("Mathematica"))
 115       sTables = 0;
 116     else if (tTable.Contains("SHARE"))
 117       sTables = 1;
 118     else {
 119       PRINT_MESSAGE("Unknown table type: " << tTable.Data());
 120       exit(0);
 121     }
 122     sIntegrateSample = atoi(sRPInstance->getPar("NumberOfIntegrateSamples").Data());
 123     fInputDir = sRPInstance->getPar("InputDirSHARE");
 124   }
 125   catch (STR tError) {
 126     PRINT_DEBUG_1("RunBFPW::ReadParameters - Caught exception " << tError);
 127     PRINT_MESSAGE("Did not find one of the neccessary parameters in the parameters file.");
 128     exit(0);
 129   }
 130 }
 131
 132 void        TTherminator::Initialize(){
 133   // Initialize global variables
 134   // and particle and decay tables
 135   Parser       *tParser;
 136
 137   sRPFileName = "therminator.in";
 138   sRPInstance = new ReadPar(sRPFileName.Data());
 139
 140   ReadParameters();
 141
 142   tParser = new Parser(fPartDB);
 143
 144   tParser->ReadShare();
 145
 146   fCalka = new Integrator(sIntegrateSample);
 147   fCalka->ReadMultInteg(fPartDB);
 148
 149
 150   // Read in particle table from share
 151   // and add missing particle type to TDatabasePDG
 152
 153   char str[50];
 154   char str1[200];
 155
 156   //  ParticleType *tPartBuf;
 157
 158   TDatabasePDG *tInstance = TDatabasePDG::Instance();
 159   TParticlePDG *tParticleType;
 160
 161   //  AliWarning(Form("Reading particle types from particles.data"));
 162
 163   ifstream in((fInputDir+"/"+"particles.data").Data());
 164   //  ifstream in("particles.data");
 165
 166   int charge;
 167
 168   int number=0;
 169   if ((in) && (in.is_open()))
 170     {
 171       //START OF HEAD-LINE
 172       in.ignore(200,'\n');
 173       in.ignore(200,'\n');
 174       in.ignore(200,'\n');
 175       //END OF HEAD-LINE
 176
 177       while (in>>str)
 178         {
 179           if (/*(*str == '#')||*/(*str<65)||(*str>122))
 180             {
 181               in.getline(str1,200);
 182               continue;
 183             }
 184           double mass, gamma, spin, tI3, tI, q, s, aq, as, c, ac, mc;
 185
 186           in>>mass>>gamma>>spin>>tI>>tI3>>q>>s>>aq>>as>>c>>ac>>mc;
 187           number++;
 188           tParticleType = tInstance->GetParticle((int) mc);
 189           if (!tParticleType) {
 190             charge = 0;
 191             if (strstr(str, "plu")) charge = 1;
 192             if (strstr(str, "min")) charge = -1;
 193             if (strstr(str, "plb")) charge = -1;
 194             if (strstr(str, "mnb")) charge = 1;
 195             if (strstr(str, "plp")) charge = 2;
 196             if (strstr(str, "ppb")) charge = -2;
 197             tInstance->AddParticle(str, str, mass, gamma == 0.0 ? 1:0, gamma, charge , "meson", (int) mc);
 198             //      printf("Added particle %s with PDG PID %d charge %d", str, (int) mc, charge);
 199             //AliWarning(Form("Added particle %s with PDG PID %d charge %d", str, (int) mc, charge));
 200             //      AliWarning(Form("Quantum numbers q s c aq as ac tI3 %lf %lf %lf %lf %lf %lf %lf", q, s, c, aq, as, ac, tI3));
 201
 202           }
 203         }
 204       in.close();
 205     }
 206 }
 207
 208 void        TTherminator::GenerateEvent()
 209 {
 210   // Run single event generation
 211   if ((sRunType == 3) || (sRunType == 4))
 212     {
 213       if (sRunType==4)
 214         fCalka->Randomize();
 215
 216       if (!fEvent) fEvent = new Event(fPartDB, fCalka);
 217       if (sRunType == 4) fEvent->Randomize();
 218
 219       fEvent->GenerateEvent();
 220       fEvent->DecayParticles();
 221       //      fEvent->WriteEvent(0);
 222     }
 223 }
 224
 225 Int_t       TTherminator::ImportParticles(TClonesArray *particles, Option_t */*option*/)
 226 {
 227   // Import particles from a generated event into an external array
 228   const double kFmToGev = 0.197327;
 229
 230   if (particles == 0) return 0;
 231   TClonesArray &particlesR = *particles;
 232   particlesR.Clear();
 233   Int_t nump = 0;
 234   if (!fEvent) return 0;
 235   Int_t numpart = fEvent->GetParticleCount();
 236   printf("\n TTherminator: Therminator stack contains %d particles.", numpart);
 237   for (Int_t iPart=0; iPart<numpart; iPart++) {
 238     Particle *tPart = fEvent->GetParticleOfCount(iPart);
 239     Int_t tFather;
 240     tFather = tPart->GetFather();
 241
 242     if (tFather> -1) {
 243       TParticle *mother = (TParticle*) (particlesR.UncheckedAt(tFather+1));
 244       mother->SetLastDaughter(iPart);
 245       if (mother->GetFirstDaughter()==-1)
 246         mother->SetFirstDaughter(iPart);
 247     }
 248     nump++;
 249     //    printf("Putting %d %d %lf %d\n", tPart->GetParticleType()->GetPDGCode(), iPart, tPart->px, tPart);
 250     new (particlesR[iPart]) TParticle(tPart->GetParticleType()->GetPDGCode(), tPart->HadDecayed(),
 251                                       tFather, -1, -1, -1,
 252                                       tPart->px, tPart->py, tPart->pz, tPart->GetEnergy() ,
 253                                       tPart->rx*1.e-13*kFmToGev, tPart->ry*1.e-13*kFmToGev, tPart->rz*1.e-13*kFmToGev, tPart->rt*1.e-13*kFmToGev/3e10);
 254     particlesR[iPart]->SetUniqueID(iPart);
 255   }
 256
 257   return nump;
 258 }
 259
 260 TObjArray*  TTherminator::ImportParticles(Option_t */*option*/)
 261 {
 262   // Import generated particles into an internal array
 263   const double kFmToGev = 0.197327;
 264
 265   Int_t nump = 0;
 266   fParticles->Clear();
 267   if (!fEvent) return 0;
 268   Int_t numpart = fEvent->GetParticleCount();
 269   printf("\n TTherminator: Therminator stack contains %d particles.", numpart);
 270   fEvent->InitParticleScan();
 271   for (Int_t iPart=0; iPart<numpart; iPart++) {
 272     Particle *tPart = fEvent->GetNextParticle();
 273     Int_t tFather;
 274     tFather = tPart->GetFather();
 275
 276     if (tFather> -1) {
 277       TParticle *mother = (TParticle*) (fParticles->UncheckedAt(tFather));
 278       mother->SetLastDaughter(iPart);
 279       if (mother->GetFirstDaughter()==-1)
 280         mother->SetFirstDaughter(iPart);
 281     }
 282     TParticle* p = new TParticle(tPart->GetParticleType()->GetPDGCode(), tPart->HadDecayed(),
 283                                  tFather, -1, -1, -1,
 284                                  tPart->px, tPart->py, tPart->pz, tPart->GetEnergy() ,
 285                                  tPart->rx*1.e-13*kFmToGev, tPart->ry*1.e-13*kFmToGev, tPart->rz*1.e-13*kFmToGev, tPart->rt*1.e-13*kFmToGev/3e10);
 286     p->SetUniqueID(iPart);
 287     fParticles->Add(p);
 288   }
 289   nump = fEvent->GetParticleCount();
 290
 291   return fParticles;
 292
 293 }