Completing the setup for TTherminator model.
[u/mrichter/AliRoot.git] / 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 }