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[u/mrichter/AliRoot.git] / TTherminator / TTherminator.cxx
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2e967919 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>
0ff6d0b8 38#include <TClass.h>
2e967919 39
40ReadPar *sRPInstance;
41STR sRPFileName;
42int sNumEvents;
43int sRunType;
44int sTables;
45int sModel;
46int sIntegrateSample;
47
48ClassImp(TTherminator)
49
50TTherminator::TTherminator():
51 fCalka(0),
52 fEvent(0),
53 fPartDB(0)
54{
55 // Default constructor
56 fPartDB = new ParticleDB();
57}
58TTherminator::TTherminator(const TTherminator & therm) :
c61a7285 59 TGenerator(therm),
2e967919 60 fCalka(0),
61 fEvent(0),
62 fPartDB(0)
63{
64 // Copy constructor
65 fPartDB = new ParticleDB();
66}
67TTherminator::~TTherminator()
68{
69 // Destructor
70 if (sRPInstance) delete sRPInstance;
71 if (fEvent) delete fEvent;
72 if (fCalka) delete fCalka;
73 if (fPartDB) delete fPartDB;
74}
75
76void TTherminator::ReadParameters()
77{
78 // Read in global model parameters
79 STR tModel;
80 STR tTable;
81
82 try {
83 sNumEvents = atoi(sRPInstance->getPar("NumberOfEvents").Data());
84 tModel = sRPInstance->getPar("FreezeOutModel");
85 if (tModel.Contains("SingleFreezeOut"))
86 sModel = 0;
87/*MCH begin*/
88 else if (tModel.Contains("Lhyquid3D"))
89 sModel = 10;
90 else if (tModel.Contains("Lhyquid2D"))
91 sModel = 11;
92/*MCH end*/
93 else if (tModel.Contains("BlastWaveVTDelay"))
94 sModel = 6;
95 else if (tModel.Contains("BlastWaveVT"))
96 sModel = 2;
97 else if (tModel.Contains("BlastWaveVLinearFormation"))
98 sModel = 7;
99 else if (tModel.Contains("BlastWaveVLinearDelay"))
100 sModel = 8;
101 else if (tModel.Contains("BlastWaveVLinear"))
102 sModel = 4;
103 else if (tModel.Contains("FiniteHydro"))
104 sModel = 5;
105 else {
106 PRINT_MESSAGE("Unknown model type: " << tModel.Data());
107 PRINT_MESSAGE("Please provide the proper name");
108 exit(0);
109 }
110 if (atoi(sRPInstance->getPar("Randomize").Data()) == 1)
111 sRunType = 4;
112 else
113 sRunType = 3;
114 tTable = sRPInstance->getPar("TableType");
115 if (tTable.Contains("Mathematica"))
116 sTables = 0;
117 else if (tTable.Contains("SHARE"))
118 sTables = 1;
119 else {
120 PRINT_MESSAGE("Unknown table type: " << tTable.Data());
121 exit(0);
122 }
123 sIntegrateSample = atoi(sRPInstance->getPar("NumberOfIntegrateSamples").Data());
ae89e57a 124 fInputDir = sRPInstance->getPar("InputDirSHARE");
2e967919 125 }
126 catch (STR tError) {
127 PRINT_DEBUG_1("RunBFPW::ReadParameters - Caught exception " << tError);
128 PRINT_MESSAGE("Did not find one of the neccessary parameters in the parameters file.");
129 exit(0);
130 }
131}
132
133void TTherminator::Initialize(){
134 // Initialize global variables
135 // and particle and decay tables
136 Parser *tParser;
137
138 sRPFileName = "therminator.in";
139 sRPInstance = new ReadPar(sRPFileName.Data());
140
141 ReadParameters();
142
143 tParser = new Parser(fPartDB);
144
145 tParser->ReadShare();
146
147 fCalka = new Integrator(sIntegrateSample);
148 fCalka->ReadMultInteg(fPartDB);
149
150
151 // Read in particle table from share
152 // and add missing particle type to TDatabasePDG
153
154 char str[50];
155 char str1[200];
156
157 // ParticleType *tPartBuf;
158
159 TDatabasePDG *tInstance = TDatabasePDG::Instance();
160 TParticlePDG *tParticleType;
161
162 // AliWarning(Form("Reading particle types from particles.data"));
ae89e57a 163
164 ifstream in((fInputDir+"/"+"particles.data").Data());
165 // ifstream in("particles.data");
2e967919 166
167 int charge;
168
169 int number=0;
170 if ((in) && (in.is_open()))
171 {
172 //START OF HEAD-LINE
173 in.ignore(200,'\n');
174 in.ignore(200,'\n');
175 in.ignore(200,'\n');
176 //END OF HEAD-LINE
177
178 while (in>>str)
179 {
180 if (/*(*str == '#')||*/(*str<65)||(*str>122))
181 {
182 in.getline(str1,200);
183 continue;
184 }
185 double mass, gamma, spin, tI3, tI, q, s, aq, as, c, ac, mc;
186
187 in>>mass>>gamma>>spin>>tI>>tI3>>q>>s>>aq>>as>>c>>ac>>mc;
188 number++;
189 tParticleType = tInstance->GetParticle((int) mc);
190 if (!tParticleType) {
191 charge = 0;
192 if (strstr(str, "plu")) charge = 1;
193 if (strstr(str, "min")) charge = -1;
194 if (strstr(str, "plb")) charge = -1;
195 if (strstr(str, "mnb")) charge = 1;
196 if (strstr(str, "plp")) charge = 2;
197 if (strstr(str, "ppb")) charge = -2;
198 tInstance->AddParticle(str, str, mass, gamma == 0.0 ? 1:0, gamma, charge , "meson", (int) mc);
199 // printf("Added particle %s with PDG PID %d charge %d", str, (int) mc, charge);
200 //AliWarning(Form("Added particle %s with PDG PID %d charge %d", str, (int) mc, charge));
201 // 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));
202
203 }
204 }
205 in.close();
206 }
207}
208
209void TTherminator::GenerateEvent()
210{
211 // Run single event generation
212 if ((sRunType == 3) || (sRunType == 4))
213 {
214 if (sRunType==4)
215 fCalka->Randomize();
216
217 if (!fEvent) fEvent = new Event(fPartDB, fCalka);
218 if (sRunType == 4) fEvent->Randomize();
219
220 fEvent->GenerateEvent();
221 fEvent->DecayParticles();
222 // fEvent->WriteEvent(0);
223 }
224}
225
c61a7285 226Int_t TTherminator::ImportParticles(TClonesArray *particles, Option_t */*option*/)
2e967919 227{
228 // Import particles from a generated event into an external array
c9c8970c 229 const double kFmToGev = 0.197327;
230
2e967919 231 if (particles == 0) return 0;
232 TClonesArray &particlesR = *particles;
233 particlesR.Clear();
234 Int_t nump = 0;
235 if (!fEvent) return 0;
236 Int_t numpart = fEvent->GetParticleCount();
0ff6d0b8 237 printf("\n TTherminator: Therminator stack contains %d particles.\n", numpart);
2e967919 238 for (Int_t iPart=0; iPart<numpart; iPart++) {
239 Particle *tPart = fEvent->GetParticleOfCount(iPart);
240 Int_t tFather;
241 tFather = tPart->GetFather();
242
243 if (tFather> -1) {
244 TParticle *mother = (TParticle*) (particlesR.UncheckedAt(tFather+1));
245 mother->SetLastDaughter(iPart);
246 if (mother->GetFirstDaughter()==-1)
247 mother->SetFirstDaughter(iPart);
248 }
249 nump++;
250 // printf("Putting %d %d %lf %d\n", tPart->GetParticleType()->GetPDGCode(), iPart, tPart->px, tPart);
251 new (particlesR[iPart]) TParticle(tPart->GetParticleType()->GetPDGCode(), tPart->HadDecayed(),
0ff6d0b8 252 tFather, -1, -1, -1,
253 tPart->px, tPart->py, tPart->pz, tPart->GetEnergy() ,
254 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);
2e967919 255 particlesR[iPart]->SetUniqueID(iPart);
256 }
257
258 return nump;
259}
260
c61a7285 261TObjArray* TTherminator::ImportParticles(Option_t */*option*/)
2e967919 262{
263 // Import generated particles into an internal array
c9c8970c 264 const double kFmToGev = 0.197327;
265
2e967919 266 Int_t nump = 0;
267 fParticles->Clear();
268 if (!fEvent) return 0;
269 Int_t numpart = fEvent->GetParticleCount();
270 printf("\n TTherminator: Therminator stack contains %d particles.", numpart);
271 fEvent->InitParticleScan();
272 for (Int_t iPart=0; iPart<numpart; iPart++) {
273 Particle *tPart = fEvent->GetNextParticle();
274 Int_t tFather;
275 tFather = tPart->GetFather();
276
277 if (tFather> -1) {
278 TParticle *mother = (TParticle*) (fParticles->UncheckedAt(tFather));
279 mother->SetLastDaughter(iPart);
280 if (mother->GetFirstDaughter()==-1)
281 mother->SetFirstDaughter(iPart);
282 }
283 TParticle* p = new TParticle(tPart->GetParticleType()->GetPDGCode(), tPart->HadDecayed(),
284 tFather, -1, -1, -1,
285 tPart->px, tPart->py, tPart->pz, tPart->GetEnergy() ,
c9c8970c 286 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);
2e967919 287 p->SetUniqueID(iPart);
288 fParticles->Add(p);
289 }
290 nump = fEvent->GetParticleCount();
291
292 return fParticles;
293
294}