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   fCalka(0),
  59   fEvent(0),
  60   fPartDB(0)
  61 {
  62   // Copy constructor
  63   fPartDB = new ParticleDB();
  64 }
  65 TTherminator::~TTherminator()
  66 {
  67   // Destructor
  68   if (sRPInstance) delete sRPInstance;
  69   if (fEvent) delete fEvent;
  70   if (fCalka) delete fCalka;
  71   if (fPartDB) delete fPartDB;
  72 }
  73
  74 void TTherminator::ReadParameters()
  75 {
  76   // Read in global model parameters
  77   STR tModel;
  78   STR tTable;
  79
  80   try {
  81     sNumEvents = atoi(sRPInstance->getPar("NumberOfEvents").Data());
  82     tModel = sRPInstance->getPar("FreezeOutModel");
  83     if (tModel.Contains("SingleFreezeOut"))
  84       sModel = 0;
  85 /*MCH begin*/
  86     else if (tModel.Contains("Lhyquid3D"))
  87       sModel = 10;
  88     else if (tModel.Contains("Lhyquid2D"))
  89       sModel = 11;
  90 /*MCH end*/
  91     else if (tModel.Contains("BlastWaveVTDelay"))
  92       sModel = 6;
  93     else if (tModel.Contains("BlastWaveVT"))
  94       sModel = 2;
  95     else if (tModel.Contains("BlastWaveVLinearFormation"))
  96       sModel = 7;
  97     else if (tModel.Contains("BlastWaveVLinearDelay"))
  98       sModel = 8;
  99     else if (tModel.Contains("BlastWaveVLinear"))
 100       sModel = 4;
 101     else if (tModel.Contains("FiniteHydro"))
 102       sModel = 5;
 103     else {
 104       PRINT_MESSAGE("Unknown model type: " << tModel.Data());
 105       PRINT_MESSAGE("Please provide the proper name");
 106       exit(0);
 107     }
 108     if (atoi(sRPInstance->getPar("Randomize").Data()) == 1)
 109       sRunType = 4;
 110     else
 111       sRunType = 3;
 112     tTable = sRPInstance->getPar("TableType");
 113     if (tTable.Contains("Mathematica"))
 114       sTables = 0;
 115     else if (tTable.Contains("SHARE"))
 116       sTables = 1;
 117     else {
 118       PRINT_MESSAGE("Unknown table type: " << tTable.Data());
 119       exit(0);
 120     }
 121     sIntegrateSample = atoi(sRPInstance->getPar("NumberOfIntegrateSamples").Data());
 122     fInputDir = sRPInstance->getPar("InputDirSHARE");
 123   }
 124   catch (STR tError) {
 125     PRINT_DEBUG_1("RunBFPW::ReadParameters - Caught exception " << tError);
 126     PRINT_MESSAGE("Did not find one of the neccessary parameters in the parameters file.");
 127     exit(0);
 128   }
 129 }
 130
 131 void        TTherminator::Initialize(){
 132   // Initialize global variables
 133   // and particle and decay tables
 134   Parser       *tParser;
 135
 136   sRPFileName = "therminator.in";
 137   sRPInstance = new ReadPar(sRPFileName.Data());
 138
 139   ReadParameters();
 140
 141   tParser = new Parser(fPartDB);
 142
 143   tParser->ReadShare();
 144
 145   fCalka = new Integrator(sIntegrateSample);
 146   fCalka->ReadMultInteg(fPartDB);
 147
 148
 149   // Read in particle table from share
 150   // and add missing particle type to TDatabasePDG
 151
 152   char str[50];
 153   char str1[200];
 154
 155   //  ParticleType *tPartBuf;
 156
 157   TDatabasePDG *tInstance = TDatabasePDG::Instance();
 158   TParticlePDG *tParticleType;
 159
 160   //  AliWarning(Form("Reading particle types from particles.data"));
 161
 162   ifstream in((fInputDir+"/"+"particles.data").Data());
 163   //  ifstream in("particles.data");
 164
 165   int charge;
 166
 167   int number=0;
 168   if ((in) && (in.is_open()))
 169     {
 170       //START OF HEAD-LINE
 171       in.ignore(200,'\n');
 172       in.ignore(200,'\n');
 173       in.ignore(200,'\n');
 174       //END OF HEAD-LINE
 175
 176       while (in>>str)
 177         {
 178           if (/*(*str == '#')||*/(*str<65)||(*str>122))
 179             {
 180               in.getline(str1,200);
 181               continue;
 182             }
 183           double mass, gamma, spin, tI3, tI, q, s, aq, as, c, ac, mc;
 184
 185           in>>mass>>gamma>>spin>>tI>>tI3>>q>>s>>aq>>as>>c>>ac>>mc;
 186           number++;
 187           tParticleType = tInstance->GetParticle((int) mc);
 188           if (!tParticleType) {
 189             charge = 0;
 190             if (strstr(str, "plu")) charge = 1;
 191             if (strstr(str, "min")) charge = -1;
 192             if (strstr(str, "plb")) charge = -1;
 193             if (strstr(str, "mnb")) charge = 1;
 194             if (strstr(str, "plp")) charge = 2;
 195             if (strstr(str, "ppb")) charge = -2;
 196             tInstance->AddParticle(str, str, mass, gamma == 0.0 ? 1:0, gamma, charge , "meson", (int) mc);
 197             //      printf("Added particle %s with PDG PID %d charge %d", str, (int) mc, charge);
 198             //AliWarning(Form("Added particle %s with PDG PID %d charge %d", str, (int) mc, charge));
 199             //      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));
 200
 201           }
 202         }
 203       in.close();
 204     }
 205 }
 206
 207 void        TTherminator::GenerateEvent()
 208 {
 209   // Run single event generation
 210   if ((sRunType == 3) || (sRunType == 4))
 211     {
 212       if (sRunType==4)
 213         fCalka->Randomize();
 214
 215       if (!fEvent) fEvent = new Event(fPartDB, fCalka);
 216       if (sRunType == 4) fEvent->Randomize();
 217
 218       fEvent->GenerateEvent();
 219       fEvent->DecayParticles();
 220       //      fEvent->WriteEvent(0);
 221     }
 222 }
 223
 224 Int_t       TTherminator::ImportParticles(TClonesArray *particles, Option_t *option)
 225 {
 226   // Import particles from a generated event into an external array
 227   if (particles == 0) return 0;
 228   TClonesArray &particlesR = *particles;
 229   particlesR.Clear();
 230   Int_t nump = 0;
 231   if (!fEvent) return 0;
 232   Int_t numpart = fEvent->GetParticleCount();
 233   printf("\n TTherminator: Therminator stack contains %d particles.", numpart);
 234   for (Int_t iPart=0; iPart<numpart; iPart++) {
 235     Particle *tPart = fEvent->GetParticleOfCount(iPart);
 236     Int_t tFather;
 237     tFather = tPart->GetFather();
 238
 239     if (tFather> -1) {
 240       TParticle *mother = (TParticle*) (particlesR.UncheckedAt(tFather+1));
 241       mother->SetLastDaughter(iPart);
 242       if (mother->GetFirstDaughter()==-1)
 243         mother->SetFirstDaughter(iPart);
 244     }
 245     nump++;
 246     //    printf("Putting %d %d %lf %d\n", tPart->GetParticleType()->GetPDGCode(), iPart, tPart->px, tPart);
 247     new (particlesR[iPart]) TParticle(tPart->GetParticleType()->GetPDGCode(), tPart->HadDecayed(),
 248                                       tFather, -1, -1, -1,
 249                                       tPart->px, tPart->py, tPart->pz, tPart->GetEnergy() ,
 250                                       tPart->rx*1.e-13, tPart->ry*1.e-13, tPart->rz*1.e-13, tPart->rt*1.e-13/300000000
 251                                       );
 252     particlesR[iPart]->SetUniqueID(iPart);
 253   }
 254
 255   return nump;
 256 }
 257
 258 TObjArray*  TTherminator::ImportParticles(Option_t *option)
 259 {
 260   // Import generated particles into an internal array
 261   Int_t nump = 0;
 262   fParticles->Clear();
 263   if (!fEvent) return 0;
 264   Int_t numpart = fEvent->GetParticleCount();
 265   printf("\n TTherminator: Therminator stack contains %d particles.", numpart);
 266   fEvent->InitParticleScan();
 267   for (Int_t iPart=0; iPart<numpart; iPart++) {
 268     Particle *tPart = fEvent->GetNextParticle();
 269     Int_t tFather;
 270     tFather = tPart->GetFather();
 271
 272     if (tFather> -1) {
 273       TParticle *mother = (TParticle*) (fParticles->UncheckedAt(tFather));
 274       mother->SetLastDaughter(iPart);
 275       if (mother->GetFirstDaughter()==-1)
 276         mother->SetFirstDaughter(iPart);
 277     }
 278     TParticle* p = new TParticle(tPart->GetParticleType()->GetPDGCode(), tPart->HadDecayed(),
 279                                  tFather, -1, -1, -1,
 280                                  tPart->px, tPart->py, tPart->pz, tPart->GetEnergy() ,
 281                                  tPart->rx*1.e-13, tPart->ry*1.e-13, tPart->rz*1.e-13, tPart->rt*1.e-13/300000000
 282                                  );
 283     p->SetUniqueID(iPart);
 284     fParticles->Add(p);
 285   }
 286   nump = fEvent->GetParticleCount();
 287
 288   return fParticles;
 289
 290 }