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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Generator using UHKM 3.0 as an external generator. // | |
3 | // ( only the HYDJET++ part is implemented for a moment) // | |
4 | // temporary link: // | |
5 | // http://lav01.sinp.msu.ru/~igor/hydjet++/hydjet++.txt // | |
6 | // The main UHKM options are accessable through this interface. // | |
7 | // Uses the TUHKMgen implementation of TGenerator. // | |
8 | // Author of the first implementation: Sergey Zaporozhets // | |
9 | // (zaporozh@sunhe.jinr.ru) // | |
10 | // Futhers modifications were made by // | |
11 | // Ionut Cristian Arsene (i.c.arsene@fys.uio.no) // | |
12 | // & Malinina Liudmila(malinina@lav01.sinp.msu.ru) using as an example // | |
13 | // AliGenTherminator.cxx created by Adam Kisiel // | |
14 | // // | |
15 | //////////////////////////////////////////////////////////////////////////// | |
16 | ||
17 | #include <iostream> | |
18 | #include <string> | |
19 | ||
20 | #include "TUHKMgen.h" | |
21 | #ifndef DATABASE_PDG | |
22 | #include "DatabasePDG.h" | |
23 | #endif | |
24 | #ifndef PARTICLE_PDG | |
25 | #include "ParticlePDG.h" | |
26 | #endif | |
27 | #include <TLorentzVector.h> | |
28 | #include <TPDGCode.h> | |
29 | #include <TParticle.h> | |
30 | #include <TClonesArray.h> | |
31 | #include <TMCProcess.h> | |
32 | #include <TDatabasePDG.h> | |
33 | #include <TSystem.h> | |
34 | ||
35 | #include "AliGenUHKM.h" | |
36 | #include "AliRun.h" | |
37 | #include "AliConst.h" | |
38 | #include "AliDecayer.h" | |
39 | #include "AliGenEventHeader.h" | |
40 | #include "AliGenHijingEventHeader.h" | |
41 | #include "AliLog.h" | |
42 | ||
43 | using namespace std; | |
44 | ||
45 | ||
46 | ClassImp(AliGenUHKM) | |
47 | ||
48 | //_______________________________________ | |
49 | AliGenUHKM::AliGenUHKM() | |
50 | :AliGenMC(), | |
51 | fTrials(0), | |
52 | fUHKMgen(0), | |
53 | fHydjetParams(), | |
54 | fStableFlagged(0) | |
55 | { | |
56 | // Default constructor setting up default reasonable parameter values | |
57 | // for central Pb+Pb collisions at 5.5TeV | |
58 | ||
59 | // LHC | |
60 | fHydjetParams.fSqrtS=5500; //LHC | |
61 | fHydjetParams.fAw=207;//Pb-Pb | |
62 | fHydjetParams.fBmin=0.; | |
63 | fHydjetParams.fBmax=0.5; //0-5% centrality | |
64 | fHydjetParams.fT = 0.170; | |
65 | fHydjetParams.fMuB = 0.0; | |
66 | fHydjetParams.fMuS = 0.0; | |
67 | fHydjetParams.fMuI3 = 0.0; | |
68 | fHydjetParams.fThFO = 0.130; | |
69 | fHydjetParams.fMu_th_pip = 0.0; | |
70 | fHydjetParams.fSeed=0; | |
71 | fHydjetParams.fTau=10.; | |
72 | fHydjetParams.fSigmaTau=3.; | |
73 | fHydjetParams.fR=11.; | |
74 | fHydjetParams.fYlmax=4.0; | |
75 | fHydjetParams.fUmax=1.1; | |
76 | fHydjetParams.fDelta=0.; | |
77 | fHydjetParams.fEpsilon=0.; | |
78 | fHydjetParams.fWeakDecay=0; //>=0 on ,-1 off | |
79 | fHydjetParams.fEtaType=1;//gaus | |
80 | fHydjetParams.fCorrS=1.; | |
81 | fHydjetParams.fNhsel=2; | |
82 | fHydjetParams.fIshad=1; | |
83 | fHydjetParams.fPtmin=7.0; | |
84 | fHydjetParams.fT0=0.8; | |
85 | fHydjetParams.fTau0=0.1; | |
86 | fHydjetParams.fNf=0; | |
87 | fHydjetParams.fIenglu=0; | |
88 | fHydjetParams.fIanglu=0; | |
89 | ||
90 | ||
91 | /* RHIC | |
92 | fHydjetParams.fSqrtS=200; //RHIC | |
93 | fHydjetParams.fAw=197;//Au-Au | |
94 | fHydjetParams.fBmin=0.; | |
95 | fHydjetParams.fBmax=0.5; //0-5% centrality | |
96 | fHydjetParams.fT = 0.165; | |
97 | fHydjetParams.fMuB = 0.0285; | |
98 | fHydjetParams.fMuS = 0.007; | |
99 | fHydjetParams.fMuI3 = -0.001; | |
100 | fHydjetParams.fThFO = 0.100; | |
101 | fHydjetParams.fMu_th_pip = 0.053; | |
102 | fHydjetParams.fSeed=0; | |
103 | fHydjetParams.fTau=8.; | |
104 | fHydjetParams.fSigmaTau=2.; | |
105 | fHydjetParams.fR=10.; | |
106 | fHydjetParams.fYlmax=3.3; | |
107 | fHydjetParams.fUmax=1.1; | |
108 | fHydjetParams.fDelta=0.; | |
109 | fHydjetParams.fEpsilon=0.; | |
110 | fHydjetParams.fWeakDecay=0; //>=0 on ,-1 off | |
111 | fHydjetParams.fEtaType=1;//gaus | |
112 | fHydjetParams.fCorrS=1.; | |
113 | fHydjetParams.fNhsel=2; | |
114 | fHydjetParams.fIshad=0; | |
115 | fHydjetParams.fPtmin=3.4; | |
116 | fHydjetParams.fT0=0.3; | |
117 | fHydjetParams.fTau0=0.4; | |
118 | fHydjetParams.fNf=2; | |
119 | fHydjetParams.fIenglu=0; | |
120 | fHydjetParams.fIanglu=0; | |
121 | */ | |
122 | strncpy(fParticleFilename, Form("%s/TUHKMgen/UHKM/particles.data", gSystem->Getenv("ALICE_ROOT")), 256); | |
123 | strncpy(fDecayFilename, Form("%s/TUHKMgen/UHKM/tabledecay.txt", gSystem->Getenv("ALICE_ROOT")), 256); | |
124 | for(Int_t i=0; i<500; i++) { | |
125 | fStableFlagPDG[i] = 0; | |
126 | fStableFlagStatus[i] = kFALSE; | |
127 | } | |
128 | fStableFlagged = 0; | |
129 | ||
130 | } | |
131 | ||
132 | //_______________________________________ | |
133 | AliGenUHKM::AliGenUHKM(Int_t npart) | |
134 | :AliGenMC(npart), | |
135 | fTrials(0), | |
136 | fUHKMgen(0), | |
137 | fHydjetParams(), | |
138 | fStableFlagged(0) | |
139 | { | |
140 | // Constructor specifying the size of the particle table | |
141 | // and setting up default reasonable parameter values | |
142 | // for central Pb+Pb collisions at 5.5TeV | |
143 | ||
144 | fName = "UHKM"; | |
145 | fTitle= "Particle Generator using UHKM 3.0"; | |
146 | ||
147 | fNprimaries = 0; | |
148 | ||
149 | //LHC | |
150 | fHydjetParams.fSqrtS=5500; //LHC | |
151 | fHydjetParams.fAw=207;//Pb-Pb | |
152 | fHydjetParams.fBmin=0.; | |
153 | fHydjetParams.fBmax=0.5; //0-5% centrality | |
154 | fHydjetParams.fT = 0.170; | |
155 | fHydjetParams.fMuB = 0.0; | |
156 | fHydjetParams.fMuS = 0.0; | |
157 | fHydjetParams.fMuI3 = 0.0; | |
158 | fHydjetParams.fThFO = 0.130; | |
159 | fHydjetParams.fMu_th_pip = 0.0; | |
160 | fHydjetParams.fSeed=0; | |
161 | fHydjetParams.fTau=10.; | |
162 | fHydjetParams.fSigmaTau=3.; | |
163 | fHydjetParams.fR=11.; | |
164 | fHydjetParams.fYlmax=4.0; | |
165 | fHydjetParams.fUmax=1.1; | |
166 | fHydjetParams.fDelta=0.; | |
167 | fHydjetParams.fEpsilon=0.; | |
168 | fHydjetParams.fWeakDecay=0; //>=0 on ,-1 off | |
169 | fHydjetParams.fEtaType=1;//gaus | |
170 | fHydjetParams.fCorrS=1.; | |
171 | fHydjetParams.fNhsel=2; | |
172 | fHydjetParams.fIshad=1; | |
173 | fHydjetParams.fPtmin=7.0; | |
174 | fHydjetParams.fT0=0.8; | |
175 | fHydjetParams.fTau0=0.1; | |
176 | fHydjetParams.fNf=0; | |
177 | fHydjetParams.fIenglu=0; | |
178 | fHydjetParams.fIanglu=0; | |
179 | ||
180 | /*RHIC | |
181 | fHydjetParams.fSqrtS=200; //RHIC | |
182 | fHydjetParams.fAw=197;//Au-Au | |
183 | fHydjetParams.fBmin=0.; | |
184 | fHydjetParams.fBmax=0.5; //0-5% centrality | |
185 | fHydjetParams.fT = 0.165; | |
186 | fHydjetParams.fMuB = 0.0285; | |
187 | fHydjetParams.fMuS = 0.007; | |
188 | fHydjetParams.fMuI3 = -0.001; | |
189 | fHydjetParams.fThFO = 0.100; | |
190 | fHydjetParams.fMu_th_pip = 0.053; | |
191 | fHydjetParams.fSeed=0; | |
192 | fHydjetParams.fTau=8.; | |
193 | fHydjetParams.fSigmaTau=2.; | |
194 | fHydjetParams.fR=10.; | |
195 | fHydjetParams.fYlmax=3.3; | |
196 | fHydjetParams.fUmax=1.1; | |
197 | fHydjetParams.fDelta=0.; | |
198 | fHydjetParams.fEpsilon=0.; | |
199 | fHydjetParams.fWeakDecay=0;//>=0 on ,-1 off | |
200 | fHydjetParams.fEtaType=1;//gaus | |
201 | fHydjetParams.fCorrS=1.; | |
202 | fHydjetParams.fNhsel=2; | |
203 | fHydjetParams.fIshad=1; | |
204 | fHydjetParams.fPtmin=3.4; | |
205 | fHydjetParams.fT0=0.3; | |
206 | fHydjetParams.fTau0=0.4; | |
207 | fHydjetParams.fNf=2; | |
208 | fHydjetParams.fIenglu=0; | |
209 | fHydjetParams.fIanglu=0; | |
210 | */ | |
211 | ||
212 | strncpy(fParticleFilename, Form("%s/TUHKMgen/UHKM/particles.data", gSystem->Getenv("ALICE_ROOT")), 256); | |
213 | strncpy(fDecayFilename, Form("%s/TUHKMgen/UHKM/tabledecay.txt", gSystem->Getenv("ALICE_ROOT")), 256); | |
214 | for(Int_t i=0; i<500; i++) { | |
215 | fStableFlagPDG[i] = 0; | |
216 | fStableFlagStatus[i] = kFALSE; | |
217 | } | |
218 | fStableFlagged = 0; | |
219 | ||
220 | } | |
221 | ||
222 | //__________________________________________ | |
223 | AliGenUHKM::~AliGenUHKM() | |
224 | { | |
225 | // Destructor, do nothing | |
226 | // delete fParticles; | |
227 | } | |
228 | ||
229 | void AliGenUHKM::SetAllParametersRHIC() | |
230 | { | |
231 | // Set reasonable default parameters for 0-5% central Au+Au collisions | |
232 | // at 200 GeV at RHIC | |
233 | SetEcms(200.0); // RHIC top energy | |
234 | SetAw(197); // Au+Au | |
235 | SetBmin(0.0); // 0% | |
236 | SetBmax(0.5); // 5% | |
237 | SetChFrzTemperature(0.165); // T_ch = 165 MeV | |
238 | SetMuB(0.0285); // mu_B = 28.5 MeV | |
239 | SetMuS(0.007); // mu_S = 7 MeV | |
240 | SetMuQ(-0.001); // mu_Q = -1 MeV | |
241 | SetThFrzTemperature(0.100); // T_th = 100 MeV | |
242 | SetMuPionThermal(0.053); // mu_th_pion = 53 MeV | |
243 | SetSeed(0); // use UNIX time | |
244 | SetTauB(8.0); // tau = 8 fm/c | |
245 | SetSigmaTau(2.0); // sigma_tau = 2 fm/c | |
246 | SetRmaxB(10.0); // fR = 10 fm | |
247 | SetYlMax(3.3); // fYmax = 3.3 | |
248 | SetEtaRMax(1.1); // Umax = 1.1 | |
249 | SetMomAsymmPar(0.0); // delta = 0.0 | |
250 | SetCoordAsymmPar(0.0); // epsilon = 0.0 | |
251 | // SetFlagWeakDecay(0); // weak decay on (<0 off !!!) | |
252 | SetEtaType(1); // gaus distributed with fYmax dispersion (0 means boost invariant) | |
253 | SetGammaS(1.0); // gammaS = 1.0 (no strangeness canonical suppresion) | |
254 | SetPyquenNhsel(2); // hydro on, jets on, jet quenching on | |
255 | SetPyquenShad(1); // shadowing on (0 off) | |
256 | SetPyquenPtmin(3.4); // ptmin = 3.4 GeV/c | |
257 | SetPyquenT0(0.3); // T0 = 300 MeV | |
258 | SetPyquenTau0(0.4); // tau0 = 0.4 fm/c | |
259 | SetPyquenNf(2); // 2 flavours | |
260 | SetPyquenIenglu(0); // radiative and collisional energy loss | |
261 | SetPyquenIanglu(0); // small gluon angular distribution | |
262 | } | |
263 | ||
264 | void AliGenUHKM::SetAllParametersLHC() | |
265 | { | |
266 | // Set reasonable default parameters for 0-5% central Pb+Pb collisions | |
267 | // at 5.5 TeV at LHC | |
268 | SetEcms(5500.0); // LHC | |
269 | SetAw(207); // Pb+Pb | |
270 | SetBmin(0.0); // 0% | |
271 | SetBmax(0.5); // 5% | |
272 | SetChFrzTemperature(0.170); // T_ch = 170 MeV | |
273 | SetMuB(0.0); // mu_B = 0 MeV | |
274 | SetMuS(0.0); // mu_S = 0 MeV | |
275 | SetMuQ(0.0); // mu_Q = 0 MeV | |
276 | SetThFrzTemperature(0.130); // T_th = 130 MeV | |
277 | SetMuPionThermal(0.0); // mu_th_pion = 0 MeV | |
278 | SetSeed(0); // use UNIX time | |
279 | SetTauB(10.0); // tau = 10 fm/c | |
280 | SetSigmaTau(3.0); // sigma_tau = 3 fm/c | |
281 | SetRmaxB(11.0); // fR = 11 fm | |
282 | SetYlMax(4.0); // fYmax = 4.0 | |
283 | SetEtaRMax(1.1); // Umax = 1.1 | |
284 | SetMomAsymmPar(0.0); // delta = 0.0 | |
285 | SetCoordAsymmPar(0.0); // epsilon = 0.0 | |
286 | // SetFlagWeakDecay(0); // weak decay on (<0 off !!!) | |
287 | SetEtaType(1); // gaus distributed with fYmax dispersion (0 means boost invariant) | |
288 | SetGammaS(1.0); // gammaS = 1.0 (no strangeness canonical suppresion) | |
289 | SetPyquenNhsel(2); // hydro on, jets on, jet quenching on | |
290 | SetPyquenShad(1); // shadowing on (0 off) | |
291 | SetPyquenPtmin(7.0); // ptmin = 7.0 GeV/c | |
292 | SetPyquenT0(0.8); // T0 = 800 MeV | |
293 | SetPyquenTau0(0.1); // tau0 = 0.4 fm/c | |
294 | SetPyquenNf(0); // 0 flavours | |
295 | SetPyquenIenglu(0); // radiative and collisional energy loss | |
296 | SetPyquenIanglu(0); // small gluon angular distribution | |
297 | } | |
298 | ||
299 | //_________________________________________ | |
300 | void AliGenUHKM::Init() | |
301 | { | |
302 | // Initialization of the TGenerator::TUHKMgen interface object. | |
303 | // Model input parameters are transmited to the TUHKMgen object which forwards them | |
304 | // further to the model. | |
305 | // HYDJET++ is initialized (average multiplicities are calculated, particle species definitions and decay | |
306 | // channels are loaded, etc.) | |
307 | ||
308 | SetMC(new TUHKMgen()); | |
309 | fUHKMgen = (TUHKMgen*) fMCEvGen; | |
310 | SetAllParameters(); | |
311 | ||
312 | AliGenMC::Init(); | |
313 | fUHKMgen->Initialize(); | |
314 | CheckPDGTable(); | |
315 | fUHKMgen->Print(); | |
316 | } | |
317 | ||
318 | //________________________________________ | |
319 | void AliGenUHKM::Generate() | |
320 | { | |
321 | // Generate one HYDJET++ event, get the output and push particles further | |
322 | // to AliRoot's stack | |
323 | ||
324 | Float_t polar[3] = {0,0,0}; | |
325 | Float_t origin[3] = {0,0,0}; | |
326 | Float_t origin0[3] = {0,0,0}; | |
327 | Float_t p[3]; | |
328 | Float_t v[3]; | |
329 | Float_t mass=0.0, energy=0.0; | |
330 | ||
331 | Vertex(); | |
332 | for(Int_t j=0; j<3; j++) origin0[j] = fVertex[j]; | |
333 | ||
334 | // Generate the event and import particles | |
335 | fUHKMgen->GenerateEvent(); | |
336 | fUHKMgen->ImportParticles(&fParticles,"All"); | |
337 | Int_t np = fParticles.GetEntriesFast(); | |
338 | Int_t nt = 0; | |
339 | ||
340 | ||
341 | // Handle the IDs of particles on the stack | |
342 | Int_t* idsOnStack = new Int_t[np]; | |
343 | Int_t* newPos = new Int_t[np]; | |
344 | for(Int_t i=0; i<np; i++) { | |
345 | newPos[i] = i; | |
346 | idsOnStack[i] = -1; | |
347 | } | |
348 | ||
349 | ||
350 | // Generate a random phi used to rotate the whole event | |
351 | Double_t eventRotation = gRandom->Rndm()*TMath::Pi(); | |
352 | ||
353 | TParticle *iparticle; | |
354 | Double_t partMomPhi=0.0, partPt=0.0; | |
355 | Double_t partVtxPhi=0.0, partVtxR=0.0; | |
356 | //_________ Loop for particles in the stack | |
357 | for(Int_t i=0; i<np; i++) { | |
358 | iparticle = (TParticle*)fParticles.At(i); | |
359 | Int_t kf = iparticle->GetPdgCode(); | |
360 | Bool_t hasMother = (iparticle->GetFirstMother() >= 0); | |
361 | Bool_t hasDaughter = (iparticle->GetNDaughters() > 0); | |
362 | ||
363 | if(hasDaughter) { | |
364 | // This particle has decayed | |
365 | // It will not be tracked | |
366 | // Add it only once with coordinates not | |
367 | // smeared with primary vertex position | |
368 | ||
369 | // rotate the direction of the particle | |
370 | partMomPhi = TMath::ATan2(iparticle->Py(), iparticle->Px()); | |
371 | partPt = TMath::Hypot(iparticle->Px(), iparticle->Py()); | |
372 | p[0] = partPt*TMath::Cos(partMomPhi+eventRotation); | |
373 | p[1] = partPt*TMath::Sin(partMomPhi+eventRotation); | |
374 | p[2] = iparticle->Pz(); | |
375 | ||
376 | mass = TDatabasePDG::Instance()->GetParticle(kf)->Mass(); | |
377 | energy = sqrt(mass*mass + p[0]*p[0] + p[1]*p[1] + p[2]*p[2]); | |
378 | ||
379 | // rotate the freezeout point | |
380 | partVtxPhi = TMath::ATan2(iparticle->Vy(), iparticle->Vx()); | |
381 | partVtxR = TMath::Hypot(iparticle->Vx(), iparticle->Vy()); | |
382 | v[0] = partVtxR*TMath::Cos(partVtxPhi + eventRotation); | |
383 | v[1] = partVtxR*TMath::Cos(partVtxPhi + eventRotation); | |
384 | v[2] = iparticle->Vz(); | |
385 | ||
386 | Float_t time = iparticle->T(); | |
387 | ||
388 | Int_t imo = -1; | |
389 | if(hasMother) { | |
390 | imo = iparticle->GetFirstMother(); //index of mother particle in fParticles | |
391 | } // if has mother | |
392 | Bool_t trackFlag = kFALSE; // tFlag is kFALSE --> do not track the particle | |
393 | ||
394 | PushTrack(trackFlag, (imo>=0 ? idsOnStack[imo] : imo), kf, | |
395 | p[0], p[1], p[2], energy, | |
396 | v[0], v[1], v[2], time, | |
397 | polar[0], polar[1], polar[2], | |
398 | (hasMother ? kPDecay : kPNoProcess), nt); | |
399 | idsOnStack[i] = nt; | |
400 | ||
401 | fNprimaries++; | |
402 | KeepTrack(nt); | |
403 | } | |
404 | else { | |
405 | // This is a final state particle | |
406 | // It will be tracked | |
407 | // Add it TWICE to the stack !!! | |
408 | // First time with event-wide coordinates (for femtoscopy) - | |
409 | // this one will not be tracked | |
410 | // Second time with event-wide c0ordinates and vertex smearing | |
411 | // this one will be tracked | |
412 | ||
413 | // rotate the direction of the particle | |
414 | partMomPhi = TMath::ATan2(iparticle->Py(), iparticle->Px()); | |
415 | partPt = TMath::Hypot(iparticle->Px(), iparticle->Py()); | |
416 | p[0] = partPt*TMath::Cos(partMomPhi+eventRotation); | |
417 | p[1] = partPt*TMath::Sin(partMomPhi+eventRotation); | |
418 | p[2] = iparticle->Pz(); | |
419 | ||
420 | energy = sqrt(mass*mass + p[0]*p[0] + p[1]*p[1] + p[2]*p[2]); | |
421 | ||
422 | // rotate the freezeout point | |
423 | partVtxPhi = TMath::ATan2(iparticle->Vy(), iparticle->Vx()); | |
424 | partVtxR = TMath::Hypot(iparticle->Vx(), iparticle->Vy()); | |
425 | v[0] = partVtxR*TMath::Cos(partVtxPhi + eventRotation); | |
426 | v[1] = partVtxR*TMath::Cos(partVtxPhi + eventRotation); | |
427 | v[2] = iparticle->Vz(); | |
428 | ||
429 | Int_t type = iparticle->GetStatusCode(); // 1-from jet / 0-from hydro | |
430 | Int_t coeffT=1; | |
431 | if(type==1) coeffT=-1; //to separate particles from jets | |
432 | ||
433 | ||
434 | Int_t imo = -1; | |
435 | ||
436 | if(hasMother) { | |
437 | imo = iparticle->GetFirstMother(); | |
438 | } // if has mother | |
439 | ||
440 | Bool_t trackFlag = kFALSE; // tFlag = kFALSE --> do not track this one, its for femtoscopy | |
441 | PushTrack(trackFlag, (imo>=0 ? idsOnStack[imo] : imo), kf, | |
442 | p[0], p[1], p[2], energy, | |
443 | v[0], v[1], v[2], (iparticle->T())*coeffT, // freeze-out time is negative if the particle comes from jet | |
444 | polar[0], polar[1], polar[2], | |
445 | hasMother ? kPDecay:kPNoProcess, nt); | |
446 | ||
447 | idsOnStack[i] = nt; | |
448 | fNprimaries++; | |
449 | KeepTrack(nt); | |
450 | ||
451 | origin[0] = origin0[0]+v[0]; | |
452 | origin[1] = origin0[1]+v[1]; | |
453 | origin[2] = origin0[2]+v[2]; | |
454 | imo = nt; | |
455 | ||
456 | trackFlag = fTrackIt; // Track this particle, unless otherwise specified by fTrackIt | |
457 | ||
458 | PushTrack(trackFlag, imo, kf, | |
459 | p[0], p[1], p[2], energy, | |
460 | origin[0], origin[1], origin[2], iparticle->T(), | |
461 | polar[0], polar[1], polar[2], | |
462 | hasMother ? kPDecay:kPNoProcess, nt); | |
463 | ||
464 | fNprimaries++; | |
465 | KeepTrack(nt); | |
466 | } | |
467 | } | |
468 | ||
469 | SetHighWaterMark(fNprimaries); | |
470 | ||
471 | TArrayF eventVertex; | |
472 | eventVertex.Set(3); | |
473 | eventVertex[0] = origin0[0]; | |
474 | eventVertex[1] = origin0[1]; | |
475 | eventVertex[2] = origin0[2]; | |
476 | ||
477 | // Builds the event header, to be called after each event | |
478 | AliGenEventHeader* header = new AliGenHijingEventHeader("UHKM"); | |
479 | Double_t b = 0.; | |
480 | Double_t npart = 0; | |
481 | Double_t nbin = 0; | |
482 | fUHKMgen->GetCentrality(b, npart, nbin); | |
483 | printf("********** %13.3f %13.3f %13.3f \n", b, npart, nbin); | |
484 | ||
485 | ||
486 | ||
487 | ((AliGenHijingEventHeader*) header)->SetNProduced(fNprimaries); | |
488 | ((AliGenHijingEventHeader*) header)->SetPrimaryVertex(eventVertex); | |
489 | ((AliGenHijingEventHeader*) header)->SetImpactParameter(b); | |
490 | ((AliGenHijingEventHeader*) header)->SetTotalEnergy(0.0); | |
491 | ((AliGenHijingEventHeader*) header)->SetHardScatters(0); | |
492 | ((AliGenHijingEventHeader*) header)->SetParticipants(Int_t(npart), 0); | |
493 | ((AliGenHijingEventHeader*) header)->SetCollisions(Int_t(nbin), 0, 0, 0); | |
494 | ((AliGenHijingEventHeader*) header)->SetSpectators(0, 0, 0, 0); | |
495 | ((AliGenHijingEventHeader*) header)->SetReactionPlaneAngle(0);//evrot); | |
496 | ||
497 | header->SetPrimaryVertex(fVertex); | |
498 | AddHeader(header); | |
499 | fCollisionGeometry = (AliGenHijingEventHeader*) header; | |
500 | ||
501 | delete [] idsOnStack; | |
502 | ||
503 | } | |
504 | ||
505 | void AliGenUHKM::Copy(TObject &) const | |
506 | { | |
507 | Fatal("Copy","Not implemented!\n"); | |
508 | } | |
509 | ||
510 | void AliGenUHKM::SetAllParameters() { | |
511 | // Forward all input parameters to the TGenerator::TUHKMgen object | |
512 | ||
513 | fUHKMgen->SetEcms(fHydjetParams.fSqrtS); | |
514 | fUHKMgen->SetBmin(fHydjetParams.fBmin); | |
515 | fUHKMgen->SetBmax(fHydjetParams.fBmax); | |
516 | fUHKMgen->SetAw(fHydjetParams.fAw); | |
517 | fUHKMgen->SetSeed(fHydjetParams.fSeed); | |
518 | ||
519 | fUHKMgen->SetChFrzTemperature(fHydjetParams.fT); | |
520 | fUHKMgen->SetMuB(fHydjetParams.fMuB); | |
521 | fUHKMgen->SetMuS(fHydjetParams.fMuS); | |
522 | fUHKMgen->SetMuQ(fHydjetParams.fMuI3); | |
523 | fUHKMgen->SetTauB(fHydjetParams.fTau); | |
524 | fUHKMgen->SetThFrzTemperature(fHydjetParams.fThFO); | |
525 | fUHKMgen->SetMuPionThermal(fHydjetParams.fMu_th_pip); | |
526 | ||
527 | fUHKMgen->SetSigmaTau(fHydjetParams.fSigmaTau); | |
528 | fUHKMgen->SetRmaxB(fHydjetParams.fR); | |
529 | fUHKMgen->SetYlMax(fHydjetParams.fYlmax); | |
530 | fUHKMgen->SetEtaRMax(fHydjetParams.fUmax); | |
531 | fUHKMgen->SetMomAsymmPar(fHydjetParams.fDelta); | |
532 | fUHKMgen->SetCoordAsymmPar(fHydjetParams.fEpsilon); | |
533 | ||
534 | fUHKMgen->SetGammaS(fHydjetParams.fCorrS); | |
535 | fUHKMgen->SetEtaType(fHydjetParams.fEtaType); | |
536 | fUHKMgen->SetFlagWeakDecay(fHydjetParams.fWeakDecay); | |
537 | ||
538 | //PYQUEN parameters | |
539 | ||
540 | fUHKMgen->SetPyquenNhsel(fHydjetParams.fNhsel); | |
541 | fUHKMgen->SetPyquenShad(fHydjetParams.fIshad); | |
542 | fUHKMgen->SetPyquenPtmin(fHydjetParams.fPtmin); | |
543 | fUHKMgen->SetPyquenT0(fHydjetParams.fT0); | |
544 | fUHKMgen->SetPyquenTau0(fHydjetParams.fTau0); | |
545 | fUHKMgen->SetPyquenNf(fHydjetParams.fNf); | |
546 | fUHKMgen->SetPyquenIenglu(fHydjetParams.fIenglu); | |
547 | fUHKMgen->SetPyquenIanglu(fHydjetParams.fIanglu); | |
548 | ||
549 | fUHKMgen->SetPDGParticleFile(fParticleFilename); | |
550 | fUHKMgen->SetPDGDecayFile(fDecayFilename); | |
551 | // fUHKMgen->SetUseCharmParticles(fUseCharmParticles); | |
552 | // fUHKMgen->SetMinimumWidth(fMinWidth); | |
553 | // fUHKMgen->SetMaximumWidth(fMaxWidth); | |
554 | // fUHKMgen->SetMinimumMass(fMinMass); | |
555 | // fUHKMgen->SetMaximumMass(fMaxMass); | |
556 | ||
557 | // cout << "AliGenUHKM::Init() no. stable flagged particles = " << fStableFlagged << endl; | |
558 | for(Int_t i=0; i<fStableFlagged; i++) { | |
559 | // cout << "AliGenUHKM::Init() flag no. " << i | |
560 | // << " PDG = " << fStableFlagPDG[i] | |
561 | // << " flag = " << fStableFlagStatus[i] << endl; | |
562 | fUHKMgen->SetPDGParticleStable(fStableFlagPDG[i], fStableFlagStatus[i]); | |
563 | } | |
564 | ||
565 | cout<<" Print all parameters "<<endl; | |
566 | cout<<" SqrtS = "<<fHydjetParams.fSqrtS<<endl; | |
567 | cout<<" Bmin = "<< fHydjetParams.fBmin<<endl; | |
568 | cout<<" Bmax= "<<fHydjetParams.fBmax<<endl; | |
569 | cout<<" Aw= "<<fHydjetParams.fAw<<endl; | |
570 | cout<<" Seed= "<<fHydjetParams.fSeed<<endl; | |
571 | ||
572 | cout<<" ---Stat-model parameters----------- "<<endl; | |
573 | ||
574 | cout<<" ChFrzTemperature= "<<fHydjetParams.fT<<endl; | |
575 | cout<<" MuB= "<<fHydjetParams.fMuB<<endl; | |
576 | cout<<" MuS= "<<fHydjetParams.fMuS<<endl; | |
577 | cout<<" MuQ= "<<fHydjetParams.fMuI3<<endl; | |
578 | cout<<" TauB= "<<fHydjetParams.fTau<<endl; | |
579 | cout<<" ThFrzTemperature= "<<fHydjetParams.fThFO<<endl; | |
580 | cout<<" MuPionThermal= "<<fHydjetParams.fMu_th_pip<<endl; | |
581 | ||
582 | cout<<"-----Volume parameters -------------- "<<endl; | |
583 | ||
584 | cout<<" SigmaTau= "<<fHydjetParams.fSigmaTau<<endl; | |
585 | cout<<" RmaxB= "<<fHydjetParams.fR<<endl; | |
586 | cout<<" YlMax= "<<fHydjetParams.fYlmax<<endl; | |
587 | cout<<" EtaRMax= "<<fHydjetParams.fUmax<<endl; | |
588 | cout<<" MomAsymmPar= "<<fHydjetParams.fDelta<<endl; | |
589 | cout<<" CoordAsymmPar= "<<fHydjetParams.fEpsilon<<endl; | |
590 | ||
591 | cout<<" --------Flags------ "<<endl; | |
592 | ||
593 | cout<<" GammaS= "<<fHydjetParams.fCorrS<<endl; | |
594 | cout<<" EtaType= "<<fHydjetParams.fEtaType<<endl; | |
595 | cout<<" FlagWeakDecay= "<<fHydjetParams.fWeakDecay<<endl; | |
596 | ||
597 | cout<<"----PYQUEN parameters---"<<endl; | |
598 | ||
599 | cout<<" Nhsel= "<<fHydjetParams.fNhsel<<endl; | |
600 | cout<<" Shad= "<<fHydjetParams.fIshad<<endl; | |
601 | cout<<" Ptmin= "<<fHydjetParams.fPtmin<<endl; | |
602 | cout<<" T0= "<<fHydjetParams.fT0<<endl; | |
603 | cout<<" Tau0= "<<fHydjetParams.fTau0<<endl; | |
604 | cout<<" Nf= "<<fHydjetParams.fNf<<endl; | |
605 | cout<<" Ienglu= "<<fHydjetParams.fIenglu<<endl; | |
606 | cout<<" Ianglu= "<<fHydjetParams.fIanglu<<endl; | |
607 | ||
608 | // cout<<"----PDG table parameters---"<<endl; | |
609 | ||
610 | // cout<<" UseCharmParticles= "<<fUseCharmParticles<<endl; | |
611 | // cout<<" MinimumWidth= "<<fMinWidth<<endl; | |
612 | // cout<<" MaximumWidth= "<<fMaxWidth<<endl; | |
613 | // cout<<" MinimumMass= "<<fMinMass<<endl; | |
614 | // cout<<" MaximumMass= "<<fMaxMass<<endl; | |
615 | ||
616 | // cout << "AliGenUHKM::SetAllParameters() OUT" << endl; | |
617 | } | |
618 | ||
619 | // add the additional PDG codes from UHKM(SHARE table) to ROOT's table | |
620 | void AliGenUHKM::CheckPDGTable() { | |
621 | // Add temporarely all particle definitions from HYDJET++ which miss in the ROOT's PDG tables | |
622 | // to the TDatabasePDG table. | |
623 | ||
624 | DatabasePDG *uhkmPDG = fUHKMgen->PDGInfo(); // UHKM's PDG table | |
625 | TParticlePDG *rootTestParticle; | |
626 | ParticlePDG *uhkmTestParticle; | |
627 | ||
628 | // loop over all particles in the SHARE table | |
629 | for(Int_t i=0; i<uhkmPDG->GetNParticles(); i++) { | |
630 | // get a particle specie | |
631 | uhkmTestParticle = uhkmPDG->GetPDGParticleByIndex(i); | |
632 | // check if this code exists in ROOT's table | |
633 | rootTestParticle = TDatabasePDG::Instance()->GetParticle(uhkmTestParticle->GetPDG()); | |
634 | if(!rootTestParticle) { // if not then add it to the ROOT's PDG database | |
635 | ||
636 | TDatabasePDG::Instance()->AddParticle(uhkmTestParticle->GetName(), uhkmTestParticle->GetName(), | |
637 | uhkmTestParticle->GetMass(), uhkmTestParticle->GetElectricCharge(), | |
638 | (uhkmTestParticle->GetWidth()<1e-10 ? kTRUE : kFALSE), | |
639 | uhkmTestParticle->GetWidth(), | |
640 | (Int_t(uhkmTestParticle->GetBaryonNumber())==0 ? "meson" : "baryon"), | |
641 | uhkmTestParticle->GetPDG()); | |
642 | if(uhkmTestParticle->GetWidth()<1e-10) | |
643 | cout << uhkmTestParticle->GetPDG() << " with mass " | |
644 | << TDatabasePDG::Instance()->GetParticle(uhkmTestParticle->GetPDG())->Mass() | |
645 | << TDatabasePDG::Instance()->GetParticle(uhkmTestParticle->GetPDG())->Width() << endl; | |
646 | } | |
647 | } // end for | |
648 | } |