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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>
38
39ReadPar *sRPInstance;
40STR sRPFileName;
41int sNumEvents;
42int sRunType;
43int sTables;
44int sModel;
45int sIntegrateSample;
46
47ClassImp(TTherminator)
48
49TTherminator::TTherminator():
50 fCalka(0),
51 fEvent(0),
52 fPartDB(0)
53{
54 // Default constructor
55 fPartDB = new ParticleDB();
56}
57TTherminator::TTherminator(const TTherminator & therm) :
58 fCalka(0),
59 fEvent(0),
60 fPartDB(0)
61{
62 // Copy constructor
63 fPartDB = new ParticleDB();
64}
65TTherminator::~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
74void 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 }
123 catch (STR tError) {
124 PRINT_DEBUG_1("RunBFPW::ReadParameters - Caught exception " << tError);
125 PRINT_MESSAGE("Did not find one of the neccessary parameters in the parameters file.");
126 exit(0);
127 }
128}
129
130void TTherminator::Initialize(){
131 // Initialize global variables
132 // and particle and decay tables
133 Parser *tParser;
134
135 sRPFileName = "therminator.in";
136 sRPInstance = new ReadPar(sRPFileName.Data());
137
138 ReadParameters();
139
140 tParser = new Parser(fPartDB);
141
142 tParser->ReadShare();
143
144 fCalka = new Integrator(sIntegrateSample);
145 fCalka->ReadMultInteg(fPartDB);
146
147
148 // Read in particle table from share
149 // and add missing particle type to TDatabasePDG
150
151 char str[50];
152 char str1[200];
153
154 // ParticleType *tPartBuf;
155
156 TDatabasePDG *tInstance = TDatabasePDG::Instance();
157 TParticlePDG *tParticleType;
158
159 // AliWarning(Form("Reading particle types from particles.data"));
160 ifstream in("particles.data");
161
162 int charge;
163
164 int number=0;
165 if ((in) && (in.is_open()))
166 {
167 //START OF HEAD-LINE
168 in.ignore(200,'\n');
169 in.ignore(200,'\n');
170 in.ignore(200,'\n');
171 //END OF HEAD-LINE
172
173 while (in>>str)
174 {
175 if (/*(*str == '#')||*/(*str<65)||(*str>122))
176 {
177 in.getline(str1,200);
178 continue;
179 }
180 double mass, gamma, spin, tI3, tI, q, s, aq, as, c, ac, mc;
181
182 in>>mass>>gamma>>spin>>tI>>tI3>>q>>s>>aq>>as>>c>>ac>>mc;
183 number++;
184 tParticleType = tInstance->GetParticle((int) mc);
185 if (!tParticleType) {
186 charge = 0;
187 if (strstr(str, "plu")) charge = 1;
188 if (strstr(str, "min")) charge = -1;
189 if (strstr(str, "plb")) charge = -1;
190 if (strstr(str, "mnb")) charge = 1;
191 if (strstr(str, "plp")) charge = 2;
192 if (strstr(str, "ppb")) charge = -2;
193 tInstance->AddParticle(str, str, mass, gamma == 0.0 ? 1:0, gamma, charge , "meson", (int) mc);
194 // printf("Added particle %s with PDG PID %d charge %d", str, (int) mc, charge);
195 //AliWarning(Form("Added particle %s with PDG PID %d charge %d", str, (int) mc, charge));
196 // 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));
197
198 }
199 }
200 in.close();
201 }
202}
203
204void TTherminator::GenerateEvent()
205{
206 // Run single event generation
207 if ((sRunType == 3) || (sRunType == 4))
208 {
209 if (sRunType==4)
210 fCalka->Randomize();
211
212 if (!fEvent) fEvent = new Event(fPartDB, fCalka);
213 if (sRunType == 4) fEvent->Randomize();
214
215 fEvent->GenerateEvent();
216 fEvent->DecayParticles();
217 // fEvent->WriteEvent(0);
218 }
219}
220
221Int_t TTherminator::ImportParticles(TClonesArray *particles, Option_t *option)
222{
223 // Import particles from a generated event into an external array
224 if (particles == 0) return 0;
225 TClonesArray &particlesR = *particles;
226 particlesR.Clear();
227 Int_t nump = 0;
228 if (!fEvent) return 0;
229 Int_t numpart = fEvent->GetParticleCount();
230 printf("\n TTherminator: Therminator stack contains %d particles.", numpart);
231 for (Int_t iPart=0; iPart<numpart; iPart++) {
232 Particle *tPart = fEvent->GetParticleOfCount(iPart);
233 Int_t tFather;
234 tFather = tPart->GetFather();
235
236 if (tFather> -1) {
237 TParticle *mother = (TParticle*) (particlesR.UncheckedAt(tFather+1));
238 mother->SetLastDaughter(iPart);
239 if (mother->GetFirstDaughter()==-1)
240 mother->SetFirstDaughter(iPart);
241 }
242 nump++;
243 // printf("Putting %d %d %lf %d\n", tPart->GetParticleType()->GetPDGCode(), iPart, tPart->px, tPart);
244 new (particlesR[iPart]) TParticle(tPart->GetParticleType()->GetPDGCode(), tPart->HadDecayed(),
245 tFather, -1, -1, -1,
246 tPart->px, tPart->py, tPart->pz, tPart->GetEnergy() ,
247 tPart->rx*1.e-13, tPart->ry*1.e-13, tPart->rz*1.e-13, tPart->rt*1.e-13/300000000
248 );
249 particlesR[iPart]->SetUniqueID(iPart);
250 }
251
252 return nump;
253}
254
255TObjArray* TTherminator::ImportParticles(Option_t *option)
256{
257 // Import generated particles into an internal array
258 Int_t nump = 0;
259 fParticles->Clear();
260 if (!fEvent) return 0;
261 Int_t numpart = fEvent->GetParticleCount();
262 printf("\n TTherminator: Therminator stack contains %d particles.", numpart);
263 fEvent->InitParticleScan();
264 for (Int_t iPart=0; iPart<numpart; iPart++) {
265 Particle *tPart = fEvent->GetNextParticle();
266 Int_t tFather;
267 tFather = tPart->GetFather();
268
269 if (tFather> -1) {
270 TParticle *mother = (TParticle*) (fParticles->UncheckedAt(tFather));
271 mother->SetLastDaughter(iPart);
272 if (mother->GetFirstDaughter()==-1)
273 mother->SetFirstDaughter(iPart);
274 }
275 TParticle* p = new TParticle(tPart->GetParticleType()->GetPDGCode(), tPart->HadDecayed(),
276 tFather, -1, -1, -1,
277 tPart->px, tPart->py, tPart->pz, tPart->GetEnergy() ,
278 tPart->rx*1.e-13, tPart->ry*1.e-13, tPart->rz*1.e-13, tPart->rt*1.e-13/300000000
279 );
280 p->SetUniqueID(iPart);
281 fParticles->Add(p);
282 }
283 nump = fEvent->GetParticleCount();
284
285 return fParticles;
286
287}