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2b9786f4 | 1 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
2 | * See cxx source for full Copyright notice */ | |
2b9786f4 | 3 | // Implementation of the interface for THBTprocessor |
4 | // Author: Piotr Krzysztof Skowronski <Piotr.Skowronski@cern.ch> | |
4c90f2a0 | 5 | ////////////////////////////////////////////////////////////////////////////////// |
2b9786f4 | 6 | //Wrapper class for "hbt processor" after burner |
7 | //The origibal code is written in fortran by Lanny Ray | |
8 | //and is put in the directory $ALICE_ROOT/HBTprocessor | |
9 | //Detailed description is on the top of the file hbt_event_processor.f | |
10 | // | |
11 | //This class can be used ONLY with AliGenCocktailAfterBurner wrapper generator | |
12 | //i.e. (in Config.C) | |
13 | // .... | |
14 | // AliGenCocktailAfterBurner = gener = new AliGenCocktailAfterBurner(); | |
15 | // gener->SetPhiRange(0, 360); //Set global parameters | |
16 | // gener->SetThetaRange(35., 145.); | |
17 | // AliGenHIJINGpara *hijing = new AliGenHIJINGpara(10000); //Add some generator | |
18 | // hijing->SetMomentumRange(0, 999); | |
19 | // gener->AddGenerator(hijing,"HIJING PARAMETRIZATION",1); | |
20 | // | |
21 | // AliGenHBTprocessor *hbtp = new AliGenHBTprocessor(); //create object | |
22 | // hbtp->SetRefControl(2); //set parameters | |
23 | // hbtp->SetSwitch1D(1); | |
24 | // hbtp->SetR0(6);//fm - radius | |
25 | // hbtp->SetLambda(0.7);//chaocity parameter | |
26 | // gener->AddAfterBurner(hbtp,"HBT PROCESSOR",1); //add to the main generator | |
27 | // | |
28 | // gener->Init(); | |
29 | // | |
30 | //CAUTIONS: | |
31 | // A) HBT PROCESSOR NEEDS MORE THAN ONE EVENT TO WORK | |
32 | // AS MORE AS IT BETTER WORKS | |
33 | // B) IT IS ABLE TO "ADD" CORRELATIONS ONLY UP TO TWO PARTICLE TYPES AT ONES | |
4c90f2a0 | 34 | ////////////////////////////////////////////////////////////////////////////////// |
35 | ||
ea6982d2 | 36 | // 11.11.2001 Piotr Skowronski |
37 | // Setting seed (date) in RNG in the constructor | |
38 | ||
39 | // 09.10.2001 Piotr Skowronski | |
40 | // | |
41 | // Theta - Eta cohernecy facilities added: | |
42 | // AliGenerator::SetThetaRange method overriden | |
43 | // Static methods added | |
44 | // EtaToTheta | |
45 | // ThetaToEta | |
46 | // DegreesToRadians | |
47 | // RadiansToDegrees | |
48 | // | |
49 | // Class description comments put on proper place | |
50 | ||
51 | // 27.09.2001 Piotr Skowronski | |
52 | // removing of redefinition of defaults velues | |
53 | // in method's implementation. | |
54 | // | |
55 | // | |
56 | ||
4c90f2a0 | 57 | #include "AliGenHBTprocessor.h" |
58 | #include "TROOT.h" | |
59 | #include <iostream.h> | |
20dddfab | 60 | #include <TFile.h> |
61 | #include <TTree.h> | |
4c90f2a0 | 62 | #include "AliRun.h" |
63 | #include "AliStack.h" | |
64 | #include "TParticle.h" | |
20dddfab | 65 | #include "THBTprocessor.h" |
4c90f2a0 | 66 | #include "AliGenCocktailAfterBurner.h" |
67 | ||
68 | ||
69 | ||
4c90f2a0 | 70 | ClassImp(AliGenHBTprocessor) |
71 | ||
2b9786f4 | 72 | |
73 | ||
74 | AliGenCocktailAfterBurner* GetGenerator(); | |
75 | /*******************************************************************/ | |
20dddfab | 76 | AliGenHBTprocessor::AliGenHBTprocessor(const AliGenHBTprocessor& in) |
77 | { | |
78 | //copy contructor | |
635be086 | 79 | // AliGenHBTprocessor::AliGenHBTprocessor(); |
20dddfab | 80 | } |
2b9786f4 | 81 | |
84b7985c | 82 | AliGenHBTprocessor::AliGenHBTprocessor() : AliGenerator() |
2b9786f4 | 83 | { |
84 | // | |
85 | // Standard constructor | |
86 | // Sets default veues of all parameters | |
20dddfab | 87 | fHbtPStatCodes = 0x0; |
88 | fHBTprocessor = 0x0; | |
89 | ||
2b9786f4 | 90 | SetName("AliGenHBTprocessor"); |
91 | SetTitle("AliGenHBTprocessor"); | |
92 | ||
93 | sRandom = fRandom; | |
94 | fHBTprocessor = new THBTprocessor(); | |
95 | ||
96 | fNPDGCodes = 0; | |
97 | DefineParticles(); | |
98 | ||
99 | SetTrackRejectionFactor(); | |
100 | SetRefControl(); | |
101 | SetPIDs(); | |
102 | SetNPIDtypes(); | |
103 | SetDeltap(); | |
104 | SetMaxIterations(); | |
105 | SetDelChi(); | |
106 | SetIRand(); | |
107 | SetLambda(); | |
108 | SetR1d() ; | |
109 | SetRSide(); | |
110 | SetROut() ; | |
111 | SetRLong() ; | |
112 | SetRPerp(); | |
113 | SetRParallel(); | |
114 | SetR0(); | |
115 | SetQ0(); | |
116 | SetSwitch1D(); | |
117 | SetSwitch3D(); | |
118 | SetSwitchType(); | |
119 | SetSwitchCoherence(); | |
120 | SetSwitchCoulomb(); | |
121 | SetSwitchFermiBose(); | |
122 | //SetMomentumRange(); | |
123 | SetPtRange(); | |
124 | SetPxRange(); | |
125 | SetPyRange(); | |
126 | SetPzRange(); | |
127 | SetPhiRange(); | |
128 | SetEtaRange(); | |
129 | SetNPtBins(); | |
130 | SetNPhiBins(); | |
131 | SetNEtaBins(); | |
132 | SetNPxBins(); | |
133 | SetNPyBins(); | |
134 | SetNPzBins(); | |
135 | SetNBins1DFineMesh(); | |
136 | SetBinSize1DFineMesh(); | |
137 | SetNBins1DCoarseMesh(); | |
138 | SetBinSize1DCoarseMesh(); | |
139 | SetNBins3DFineMesh(); | |
140 | SetBinSize3DFineMesh(); | |
141 | SetNBins3DCoarseMesh(); | |
142 | SetBinSize3DCoarseMesh(); | |
143 | SetNBins3DFineProjectMesh(); | |
144 | } | |
145 | ||
146 | /*******************************************************************/ | |
147 | ||
148 | ||
149 | /*******************************************************************/ | |
150 | ||
151 | AliGenHBTprocessor::~AliGenHBTprocessor() | |
152 | { | |
153 | //destructor | |
154 | CleanStatusCodes(); | |
155 | if (fHBTprocessor) delete fHBTprocessor; //delete generator | |
156 | ||
157 | } | |
158 | ||
159 | /*******************************************************************/ | |
160 | ||
161 | void AliGenHBTprocessor::InitStatusCodes() | |
162 | { | |
163 | //creates and inits status codes array to zero | |
164 | AliGenCocktailAfterBurner *cab = GetGenerator(); | |
165 | ||
84b7985c | 166 | if(!cab) Fatal("InitStatusCodes()","Can not find AliGenCocktailAfterBurner generator"); |
2b9786f4 | 167 | |
168 | Int_t nev = cab->GetNumberOfEvents(); | |
169 | ||
170 | fHbtPStatCodes = new Int_t* [nev]; | |
171 | for( Int_t i =0; i<nev;i++) | |
172 | { | |
173 | Int_t nprim = cab->GetStack(i)->GetNprimary(); | |
174 | fHbtPStatCodes[i] = new Int_t[nprim]; | |
175 | for (Int_t k =0 ;k<nprim;k++) | |
176 | fHbtPStatCodes[i][k] =0; | |
177 | ||
178 | } | |
179 | ||
180 | } | |
181 | /*******************************************************************/ | |
182 | ||
183 | void AliGenHBTprocessor::CleanStatusCodes() | |
20dddfab | 184 | { |
185 | //Cleans up status codes | |
2b9786f4 | 186 | if (fHbtPStatCodes) |
187 | { | |
188 | for (Int_t i =0; i<GetGenerator()->GetNumberOfEvents(); i++) | |
189 | delete [] fHbtPStatCodes[i]; | |
190 | delete fHbtPStatCodes; | |
191 | fHbtPStatCodes = 0; | |
192 | } | |
193 | ||
194 | } | |
195 | /*******************************************************************/ | |
196 | ||
197 | void AliGenHBTprocessor::Init() | |
198 | { | |
199 | //sets up parameters in generator | |
84b7985c | 200 | |
2b9786f4 | 201 | THBTprocessor *thbtp = fHBTprocessor; |
202 | ||
4c90f2a0 | 203 | |
2b9786f4 | 204 | thbtp->SetTrackRejectionFactor(fTrackRejectionFactor); |
205 | thbtp->SetRefControl(fReferenceControl); | |
206 | ||
207 | if ((fPid[0] == fPid[1]) || (fPid[0] == 0) || (fPid[1] == 0)) | |
208 | { | |
209 | if (fPid[0] == 0) | |
210 | thbtp->SetPIDs(IdFromPDG(fPid[1]) ,0); | |
211 | else | |
212 | thbtp->SetPIDs(IdFromPDG(fPid[0]) ,0); | |
213 | thbtp->SetNPIDtypes(1); | |
214 | ||
20dddfab | 215 | if (fSwitchType !=1) |
2b9786f4 | 216 | Warning("AliGenHBTprocessor::Init","\nThere is only one particle type set,\n\ |
217 | and Switch_Type differnt then 1,\n which does not make sense.\n\ | |
218 | Setting it to 1.\n"); | |
219 | ||
220 | SetSwitchType(1); | |
221 | } | |
222 | else | |
223 | { | |
224 | thbtp->SetPIDs(IdFromPDG(fPid[0]) ,IdFromPDG(fPid[1])); | |
225 | SetNPIDtypes(2); | |
20dddfab | 226 | thbtp->SetSwitchType(fSwitchType); |
2b9786f4 | 227 | } |
228 | ||
229 | thbtp->SetMaxIterations(fMaxit); | |
230 | thbtp->SetDelChi(fDelchi); | |
231 | thbtp->SetIRand(fIrand); | |
232 | thbtp->SetLambda(fLambda); | |
20dddfab | 233 | thbtp->SetR1d(fR1d); |
2b9786f4 | 234 | thbtp->SetRSide(fRside); |
235 | thbtp->SetROut(fRout); | |
236 | thbtp->SetRLong(fRlong); | |
237 | thbtp->SetRPerp(fRperp); | |
238 | thbtp->SetRParallel(fRparallel); | |
239 | thbtp->SetR0(fR0); | |
240 | thbtp->SetQ0(fQ0); | |
20dddfab | 241 | thbtp->SetSwitch1D(fSwitch1d); |
242 | thbtp->SetSwitch3D(fSwitch3d); | |
243 | thbtp->SetSwitchType(fSwitchType); | |
244 | thbtp->SetSwitchCoherence(fSwitchCoherence); | |
245 | thbtp->SetSwitchCoulomb(fSwitchCoulomb); | |
246 | thbtp->SetSwitchFermiBose(fSwitchFermiBose); | |
2b9786f4 | 247 | thbtp->SetPtRange(fPtMin,fPtMax); |
20dddfab | 248 | thbtp->SetPxRange(fPxMin,fPxMax); |
249 | thbtp->SetPyRange(fPyMin,fPyMax); | |
250 | thbtp->SetPzRange(fPzMin,fPzMax); | |
4c90f2a0 | 251 | thbtp->SetPhiRange(fPhiMin*180./TMath::Pi(),fPhiMax*180./TMath::Pi()); |
20dddfab | 252 | thbtp->SetEtaRange(fEtaMin,fEtaMax); |
253 | thbtp->SetNPtBins(fNPtBins); | |
254 | thbtp->SetNPhiBins(fNPhiBins); | |
255 | thbtp->SetNEtaBins(fNEtaBins); | |
256 | thbtp->SetNPxBins(fNPxBins); | |
257 | thbtp->SetNPyBins(fNPyBins); | |
258 | thbtp->SetNPzBins(fNPzBins); | |
259 | thbtp->SetNBins1DFineMesh(fN1dFine); | |
260 | thbtp->SetBinSize1DFineMesh(fBinsize1dFine); | |
261 | thbtp->SetNBins1DCoarseMesh(fN1dCoarse); | |
262 | thbtp->SetBinSize1DCoarseMesh(fBinsize1dCoarse); | |
263 | thbtp->SetNBins3DFineMesh(fN3dFine); | |
264 | thbtp->SetBinSize3DFineMesh(fBinsize3dFine); | |
265 | thbtp->SetNBins3DCoarseMesh(fN3dCoarse); | |
266 | thbtp->SetBinSize3DCoarseMesh(fBinsize3dCoarse); | |
267 | thbtp->SetNBins3DFineProjectMesh(fN3dFineProject); | |
2b9786f4 | 268 | |
269 | } | |
270 | /*******************************************************************/ | |
271 | ||
272 | void AliGenHBTprocessor::Generate() | |
273 | { | |
274 | //starts processig | |
84b7985c | 275 | AliGenCocktailAfterBurner* cab = GetGenerator(); |
276 | if (cab == 0x0) | |
277 | { | |
278 | Fatal("Generate()","AliGenHBTprocessor needs AliGenCocktailAfterBurner to be main generator"); | |
279 | } | |
280 | if (cab->GetNumberOfEvents() <2) | |
2b9786f4 | 281 | { |
84b7985c | 282 | Fatal("Generate()", |
2b9786f4 | 283 | "HBT Processor needs more than 1 event to work properly,\ |
84b7985c | 284 | but there is only %d set", cab->GetNumberOfEvents()); |
2b9786f4 | 285 | } |
4c90f2a0 | 286 | |
84b7985c | 287 | |
4c90f2a0 | 288 | fHBTprocessor->Initialize(); //reset all fields of common blocks |
289 | //in case there are many HBT processors | |
290 | //run one after one (i.e. in AliCocktailAfterBurner) | |
291 | //between Init() called and Generate there might | |
292 | Init(); //be different instance running - be sure that we have our settings | |
2b9786f4 | 293 | |
294 | InitStatusCodes(); //Init status codes | |
295 | ||
296 | fHBTprocessor->GenerateEvent(); //Generates event | |
297 | ||
298 | CleanStatusCodes(); //Clean Status codes - thet are not needed anymore | |
299 | } | |
300 | ||
301 | /*******************************************************************/ | |
302 | ||
303 | ||
304 | /*******************************************************************/ | |
ff6aba1e | 305 | void AliGenHBTprocessor::GetParticles(TClonesArray * particles) const |
306 | { | |
307 | //practically dumm | |
2b9786f4 | 308 | if (!particles) |
309 | { | |
310 | cout<<"Particles has to be initialized"<<endl; | |
311 | return; | |
312 | } | |
313 | fHBTprocessor->ImportParticles(particles); | |
314 | } | |
315 | ||
316 | /*******************************************************************/ | |
317 | ||
318 | Int_t AliGenHBTprocessor::GetHbtPStatusCode(Int_t part) const | |
319 | { | |
320 | //returns the status code of the given particle in the active event | |
321 | //see SetActiveEvent in the bottom of AliGenHBTprocessor.cxx | |
322 | //and in AliCocktailAfterBurner | |
20dddfab | 323 | Int_t activeEvent = GetGenerator()->GetActiveEventNumber(); |
324 | return fHbtPStatCodes[activeEvent][part]; | |
2b9786f4 | 325 | } |
326 | ||
327 | /*******************************************************************/ | |
328 | void AliGenHBTprocessor::SetHbtPStatusCode(Int_t hbtstatcode, Int_t part) | |
329 | { | |
330 | //Sets the given status code to given particle number (part) in the active event | |
20dddfab | 331 | Int_t activeEvent = GetGenerator()->GetActiveEventNumber(); |
332 | fHbtPStatCodes[activeEvent][part] = hbtstatcode; | |
2b9786f4 | 333 | } |
334 | ||
335 | /*******************************************************************/ | |
336 | ||
337 | void AliGenHBTprocessor::SetTrackRejectionFactor(Float_t trf) //def 1.0 | |
338 | { | |
339 | //Sets the Track Rejection Factor | |
340 | //variates in range 0.0 <-> 1.0 | |
341 | //Describes the factor of particles rejected from the output. | |
342 | //Used only in case of low muliplicity particles e.g. lambdas. | |
343 | //Processor generates addisional particles and builds the | |
344 | //correletions on such a statistics. | |
345 | //At the end these particels are left in the event according | |
346 | //to this factor: 1==all particles are left | |
347 | // 0==all are removed | |
348 | ||
349 | fTrackRejectionFactor=trf; | |
350 | fHBTprocessor->SetTrackRejectionFactor(trf); | |
351 | } | |
352 | /*******************************************************************/ | |
353 | ||
354 | void AliGenHBTprocessor::SetRefControl(Int_t rc) //default 2 | |
355 | { | |
356 | //Sets the Refernce Control Switch | |
357 | //switch wether read reference histograms from file =1 | |
358 | // compute from input events =2 - default | |
359 | fReferenceControl=rc; | |
360 | fHBTprocessor->SetRefControl(rc); | |
361 | } | |
362 | /*******************************************************************/ | |
363 | ||
364 | void AliGenHBTprocessor::SetPIDs(Int_t pid1,Int_t pid2) | |
365 | { | |
366 | //default pi+ pi- | |
367 | //Sets PDG Codes of particles to be processed, default \\Pi^{+} and \\Pi^{-} | |
368 | //This method accepts PDG codes which is | |
369 | //in opposite to THBBProcessor which accepts GEANT PID | |
370 | if ( (pid1 == 0) && (pid2 == 0) ) | |
371 | { | |
372 | Error("AliGenHBTprocessor::SetPIDs","Sensless Particle Types setting: 0 0, Ignoring\n"); | |
373 | } | |
374 | ||
375 | fPid[0]=pid1; | |
376 | fPid[1]=pid2; | |
377 | ||
378 | if(pid1 == pid2) | |
379 | { | |
380 | fHBTprocessor->SetPIDs(IdFromPDG(pid1) ,0); | |
4c90f2a0 | 381 | SetNPIDtypes(1); |
382 | SetSwitchType(1); | |
2b9786f4 | 383 | } |
384 | else | |
385 | { | |
386 | fHBTprocessor->SetPIDs(IdFromPDG(pid1) ,IdFromPDG(pid2)); | |
4c90f2a0 | 387 | SetNPIDtypes(2); |
2b9786f4 | 388 | } |
389 | } | |
390 | /*******************************************************************/ | |
391 | ||
392 | void AliGenHBTprocessor::SetNPIDtypes(Int_t npidt) | |
393 | { | |
394 | //Number ofparticle types to be processed - default 2 | |
395 | //see AliGenHBTprocessor::SetPIDs | |
396 | ||
397 | fNPidTypes = npidt; | |
398 | fHBTprocessor->SetNPIDtypes(npidt); | |
399 | } | |
400 | /*******************************************************************/ | |
401 | ||
402 | void AliGenHBTprocessor::SetDeltap(Float_t deltp) | |
403 | { | |
404 | //default = 0.1 GeV | |
405 | //maximum range for random momentum shifts in GeV/c; | |
406 | //px,py,pz independent; Default = 0.1 GeV/c. | |
407 | fDeltap=deltp; | |
408 | fHBTprocessor->SetDeltap(deltp); | |
409 | } | |
410 | /*******************************************************************/ | |
411 | ||
412 | void AliGenHBTprocessor::SetMaxIterations(Int_t maxiter) | |
413 | { | |
414 | //maximum # allowed iterations thru all the | |
415 | //tracks for each event. Default = 50. | |
416 | //If maxit=0, then calculate the correlations | |
417 | //for the input set of events without doing the | |
418 | //track adjustment procedure. | |
419 | ||
420 | fMaxit=maxiter; | |
421 | fHBTprocessor->SetMaxIterations(maxiter); | |
422 | } | |
423 | ||
424 | /*******************************************************************/ | |
425 | void AliGenHBTprocessor::SetDelChi(Float_t dc) | |
426 | { | |
427 | //min % change in total chi-square for which | |
428 | //the track adjustment iterations may stop, | |
429 | //Default = 0.1%. | |
430 | ||
431 | fDelchi=dc; | |
432 | fHBTprocessor->SetDelChi(dc); | |
433 | } | |
434 | /*******************************************************************/ | |
435 | ||
436 | void AliGenHBTprocessor::SetIRand(Int_t irnd) | |
437 | { | |
438 | //if fact dummy - used only for compatibility | |
439 | //we are using AliRoot built in RNG | |
440 | //dummy in fact since we are using aliroot build-in RNG | |
441 | //Sets renaodom number generator | |
442 | fIrand=irnd; | |
443 | fHBTprocessor->SetIRand(irnd); | |
444 | } | |
445 | /*******************************************************************/ | |
446 | ||
447 | void AliGenHBTprocessor::SetLambda(Float_t lam) | |
448 | { | |
449 | //default = 0.6 | |
450 | // Sets Chaoticity Parameter | |
451 | fLambda = lam; | |
452 | fHBTprocessor->SetLambda(lam); | |
453 | } | |
454 | /*******************************************************************/ | |
455 | void AliGenHBTprocessor::SetR1d(Float_t r) | |
456 | { | |
457 | //default 7.0 | |
458 | //Sets Spherical source model radius (fm) | |
20dddfab | 459 | fR1d = r; |
2b9786f4 | 460 | fHBTprocessor->SetR1d(r); |
461 | } | |
462 | /*******************************************************************/ | |
463 | void AliGenHBTprocessor::SetRSide(Float_t rs) | |
464 | { | |
465 | //default rs = 6.0 | |
466 | //Rside,Rout,Rlong = Non-spherical Bertsch-Pratt source model (fm) | |
467 | ||
468 | fRside = rs; | |
469 | fHBTprocessor->SetRSide(rs); | |
470 | } | |
471 | /*******************************************************************/ | |
472 | void AliGenHBTprocessor::SetROut(Float_t ro) | |
473 | { | |
474 | //default ro = 7.0 | |
475 | //Rside,Rout,Rlong = Non-spherical Bertsch-Pratt source model (fm) | |
476 | fRout = ro; | |
477 | fHBTprocessor->SetROut(ro); | |
478 | } | |
479 | /*******************************************************************/ | |
480 | void AliGenHBTprocessor::SetRLong(Float_t rl) | |
481 | { | |
482 | //default rl = 4.0 | |
483 | //Rside,Rout,Rlong = Non-spherical Bertsch-Pratt source model (fm) | |
484 | fRlong = rl; | |
485 | fHBTprocessor->SetRLong(rl); | |
486 | } | |
487 | /*******************************************************************/ | |
488 | void AliGenHBTprocessor::SetRPerp(Float_t rp) | |
489 | { | |
490 | //default rp = 6.0 | |
491 | //Rperp,Rparallel,R0= Non-spherical Yano-Koonin-Podgoretski source model (fm). | |
492 | fRperp = rp; | |
493 | fHBTprocessor->SetRPerp(rp); | |
494 | } | |
495 | /*******************************************************************/ | |
496 | void AliGenHBTprocessor::SetRParallel(Float_t rprl) | |
497 | { | |
498 | //default rprl = 4.0 | |
499 | //Rperp,Rparallel,R0= Non-spherical Yano-Koonin-Podgoretski source model (fm). | |
500 | fRparallel = rprl; | |
501 | fHBTprocessor->SetRParallel(rprl); | |
502 | } | |
503 | /*******************************************************************/ | |
504 | void AliGenHBTprocessor::SetR0(Float_t r0) | |
505 | { | |
506 | //default r0 = 4.0 | |
507 | //Rperp,Rparallel,R0= Non-spherical Yano-Koonin-Podgoretski source model (fm). | |
508 | fR0 = r0; | |
509 | fHBTprocessor->SetR0(r0); | |
510 | } | |
511 | /*******************************************************************/ | |
512 | void AliGenHBTprocessor::SetQ0(Float_t q0) | |
513 | { | |
514 | //default q0 = 9.0 | |
515 | //Sets Q0 = NA35 Coulomb parameter for finite source size in (GeV/c) | |
516 | // if fSwitchCoulomb = 2 | |
517 | // = Spherical Coulomb source radius in (fm) | |
20dddfab | 518 | // if switchCoulomb = 3, used to interpolate the |
2b9786f4 | 519 | // input Pratt/Cramer discrete Coulomb source |
520 | // radii tables. | |
521 | fQ0 = q0; | |
522 | fHBTprocessor->SetQ0(q0); | |
523 | } | |
524 | ||
525 | /*******************************************************************/ | |
526 | void AliGenHBTprocessor::SetSwitch1D(Int_t s1d) | |
527 | { | |
528 | //default s1d = 3 | |
20dddfab | 529 | // Sets fSwitch1d |
4c90f2a0 | 530 | // = 0 to not compute the 1D two-body //orrelations. |
531 | // = 1 to compute this using Q-invariant | |
532 | // = 2 to compute this using Q-total | |
533 | // = 3 to compute this using Q-3-ve//tor | |
2b9786f4 | 534 | |
20dddfab | 535 | fSwitch1d = s1d; |
2b9786f4 | 536 | fHBTprocessor->SetSwitch1D(s1d); |
537 | } | |
538 | /*******************************************************************/ | |
539 | void AliGenHBTprocessor::SetSwitch3D(Int_t s3d) | |
540 | { | |
541 | //default s3d = 0 | |
20dddfab | 542 | // Sets fSwitch3d |
4c90f2a0 | 543 | // = 0 to not compute the 3D two-body correlations. |
544 | // = 1 to compute this using the side-out-long form | |
545 | // = 2 to compute this using the Yanno-Koonin-Pogoredskij form. | |
2b9786f4 | 546 | |
20dddfab | 547 | fSwitch3d = s3d; |
2b9786f4 | 548 | fHBTprocessor->SetSwitch3D(s3d); |
549 | } | |
550 | /*******************************************************************/ | |
551 | void AliGenHBTprocessor::SetSwitchType(Int_t st) | |
552 | { | |
553 | //default st = 3 | |
554 | // Sets switch_type = 1 to fit only the like pair correlations | |
555 | // = 2 to fit only the unlike pair correlations | |
556 | // = 3 to fit both the like and unlike pair correl. | |
557 | //See SetPIDs and Init | |
558 | //If only one particle type is set, unly==1 makes sens | |
559 | ||
20dddfab | 560 | fSwitchType = st; |
2b9786f4 | 561 | fHBTprocessor->SetSwitchType(st); |
562 | } | |
563 | /*******************************************************************/ | |
564 | void AliGenHBTprocessor::SetSwitchCoherence(Int_t sc) | |
565 | { | |
566 | // default sc = 0 | |
20dddfab | 567 | // switchCoherence = 0 for purely incoherent source (but can have |
2b9786f4 | 568 | // lambda < 1.0) |
569 | // = 1 for mixed incoherent and coherent source | |
570 | ||
20dddfab | 571 | fSwitchCoherence = sc; |
2b9786f4 | 572 | fHBTprocessor->SetSwitchCoherence(sc); |
573 | } | |
574 | /*******************************************************************/ | |
575 | void AliGenHBTprocessor::SetSwitchCoulomb(Int_t scol) | |
576 | { | |
577 | //default scol = 2 | |
20dddfab | 578 | // switchCoulomb = 0 no Coulomb correction |
2b9786f4 | 579 | // = 1 Point source Gamow correction only |
580 | // = 2 NA35 finite source size correction | |
581 | // = 3 Pratt/Cramer finite source size correction; | |
582 | // interpolated from input tables. | |
20dddfab | 583 | fSwitchCoulomb =scol; |
2b9786f4 | 584 | fHBTprocessor->SetSwitchCoulomb(scol); |
585 | } | |
586 | /*******************************************************************/ | |
587 | void AliGenHBTprocessor::SetSwitchFermiBose(Int_t sfb) | |
588 | { | |
589 | //default sfb = 1 | |
20dddfab | 590 | // switchFermiBose = 1 Boson pairs |
2b9786f4 | 591 | // = -1 Fermion pairs |
592 | ||
20dddfab | 593 | fSwitchFermiBose = sfb; |
2b9786f4 | 594 | fHBTprocessor->SetSwitchFermiBose(sfb); |
595 | } | |
596 | /*******************************************************************/ | |
597 | void AliGenHBTprocessor::SetPtRange(Float_t ptmin, Float_t ptmax) | |
598 | { | |
599 | // default ptmin = 0.1, ptmax = 0.98 | |
600 | //Sets Pt range (GeV) | |
601 | AliGenerator::SetPtRange(ptmin,ptmax); | |
602 | fHBTprocessor->SetPtRange(ptmin,ptmax); | |
603 | } | |
604 | ||
605 | /*******************************************************************/ | |
606 | void AliGenHBTprocessor::SetPxRange(Float_t pxmin, Float_t pxmax) | |
607 | { | |
608 | //default pxmin = -1.0, pxmax = 1.0 | |
609 | //Sets Px range | |
20dddfab | 610 | fPxMin =pxmin; |
611 | fPxMax =pxmax; | |
2b9786f4 | 612 | fHBTprocessor->SetPxRange(pxmin,pxmax); |
613 | } | |
614 | /*******************************************************************/ | |
615 | void AliGenHBTprocessor::SetPyRange(Float_t pymin, Float_t pymax) | |
616 | { | |
617 | //default pymin = -1.0, pymax = 1.0 | |
618 | //Sets Py range | |
20dddfab | 619 | fPyMin =pymin; |
620 | fPyMax =pymax; | |
2b9786f4 | 621 | fHBTprocessor->SetPyRange(pymin,pymax); |
622 | } | |
623 | /*******************************************************************/ | |
624 | void AliGenHBTprocessor::SetPzRange(Float_t pzmin, Float_t pzmax) | |
625 | { | |
626 | //default pzmin = -3.6, pzmax = 3.6 | |
627 | //Sets Py range | |
20dddfab | 628 | fPzMin =pzmin; |
629 | fPzMax =pzmax; | |
2b9786f4 | 630 | fHBTprocessor->SetPzRange(pzmin,pzmax); |
631 | } | |
632 | void AliGenHBTprocessor::SetMomentumRange(Float_t pmin, Float_t pmax) | |
633 | { | |
634 | //default pmin=0, pmax=0 | |
635 | //Do not use this method! | |
636 | MayNotUse("AliGenHBTprocessor::SetMomentumRange Method is Dummy"); | |
637 | } | |
638 | ||
639 | /*******************************************************************/ | |
640 | void AliGenHBTprocessor::SetPhiRange(Float_t phimin, Float_t phimax) | |
641 | { | |
642 | // | |
643 | //Sets \\Phi range | |
644 | AliGenerator::SetPhiRange(phimin,phimax); | |
645 | ||
646 | fHBTprocessor->SetPhiRange(phimin,phimax); | |
647 | } | |
648 | /*******************************************************************/ | |
649 | void AliGenHBTprocessor::SetEtaRange(Float_t etamin, Float_t etamax) | |
650 | { | |
651 | //default etamin = -1.5, etamax = 1.5 | |
652 | //Sets \\Eta range | |
20dddfab | 653 | fEtaMin= etamin; |
654 | fEtaMax =etamax; | |
2b9786f4 | 655 | fHBTprocessor->SetEtaRange(etamin,etamax); |
4c90f2a0 | 656 | |
657 | //set the azimothal angle range in the AliGeneraor - | |
658 | //to keep coherency between azimuthal angle and pseudorapidity | |
659 | //DO NOT CALL this->SetThetaRange, because it calls this method (where we are) | |
660 | //which must cause INFINITE LOOP | |
20dddfab | 661 | AliGenerator::SetThetaRange(RadiansToDegrees(EtaToTheta(fEtaMin)), |
662 | RadiansToDegrees(EtaToTheta(fEtaMax))); | |
4c90f2a0 | 663 | |
2b9786f4 | 664 | } |
4c90f2a0 | 665 | /*******************************************************************/ |
666 | void AliGenHBTprocessor::SetThetaRange(Float_t thetamin, Float_t thetamax) | |
667 | { | |
668 | //default thetamin = 0, thetamax = 180 | |
669 | //Azimuthal angle, override AliGenerator method which uses widely (i.e. wrapper generators) | |
670 | //core fortran HBTProcessor uses Eta (pseudorapidity) | |
671 | //so these methods has to be synchronized | |
672 | ||
673 | AliGenerator::SetThetaRange(thetamin,thetamax); | |
674 | ||
675 | SetEtaRange( ThetaToEta(fThetaMin) , ThetaToEta(fThetaMax) ); | |
676 | ||
677 | } | |
678 | ||
2b9786f4 | 679 | /*******************************************************************/ |
680 | void AliGenHBTprocessor::SetNPtBins(Int_t nptbin) | |
681 | { | |
682 | //default nptbin = 50 | |
683 | //set number of Pt bins | |
20dddfab | 684 | fNPtBins= nptbin; |
2b9786f4 | 685 | fHBTprocessor->SetNPtBins(nptbin); |
686 | } | |
687 | /*******************************************************************/ | |
688 | void AliGenHBTprocessor::SetNPhiBins(Int_t nphibin) | |
689 | { | |
690 | //default nphibin = 50 | |
691 | //set number of Phi bins | |
20dddfab | 692 | fNPhiBins=nphibin; |
2b9786f4 | 693 | fHBTprocessor->SetNPhiBins(nphibin); |
694 | } | |
695 | /*******************************************************************/ | |
696 | void AliGenHBTprocessor::SetNEtaBins(Int_t netabin) | |
697 | { | |
698 | //default netabin = 50 | |
699 | //set number of Eta bins | |
20dddfab | 700 | fNEtaBins = netabin; |
2b9786f4 | 701 | fHBTprocessor->SetNEtaBins(netabin); |
702 | } | |
703 | /*******************************************************************/ | |
704 | void AliGenHBTprocessor::SetNPxBins(Int_t npxbin) | |
705 | { | |
706 | //default npxbin = 20 | |
707 | //set number of Px bins | |
20dddfab | 708 | fNPxBins = npxbin; |
2b9786f4 | 709 | fHBTprocessor->SetNPxBins(npxbin); |
710 | } | |
711 | /*******************************************************************/ | |
712 | void AliGenHBTprocessor::SetNPyBins(Int_t npybin) | |
713 | { | |
714 | //default npybin = 20 | |
715 | //set number of Py bins | |
20dddfab | 716 | fNPyBins = npybin; |
2b9786f4 | 717 | fHBTprocessor->SetNPyBins(npybin); |
718 | } | |
719 | /*******************************************************************/ | |
720 | void AliGenHBTprocessor::SetNPzBins(Int_t npzbin) | |
721 | { | |
722 | //default npzbin = 70 | |
723 | //set number of Pz bins | |
20dddfab | 724 | fNPzBins = npzbin; |
2b9786f4 | 725 | fHBTprocessor->SetNPzBins(npzbin); |
726 | } | |
727 | /*******************************************************************/ | |
728 | void AliGenHBTprocessor::SetNBins1DFineMesh(Int_t n) | |
729 | { | |
730 | //default n = 10 | |
731 | //Sets the number of bins in the 1D mesh | |
20dddfab | 732 | fN1dFine =n; |
2b9786f4 | 733 | fHBTprocessor->SetNBins1DFineMesh(n); |
734 | ||
735 | } | |
736 | /*******************************************************************/ | |
737 | void AliGenHBTprocessor::SetBinSize1DFineMesh(Float_t x) | |
738 | { | |
739 | //default x=0.01 | |
740 | //Sets the bin size in the 1D mesh | |
20dddfab | 741 | fBinsize1dFine = x; |
2b9786f4 | 742 | fHBTprocessor->SetBinSize1DFineMesh(x); |
743 | } | |
744 | /*******************************************************************/ | |
745 | ||
746 | void AliGenHBTprocessor::SetNBins1DCoarseMesh(Int_t n) | |
747 | { | |
748 | //default n =2 | |
749 | //Sets the number of bins in the coarse 1D mesh | |
20dddfab | 750 | fN1dCoarse =n; |
2b9786f4 | 751 | fHBTprocessor->SetNBins1DCoarseMesh(n); |
752 | } | |
753 | /*******************************************************************/ | |
754 | void AliGenHBTprocessor::SetBinSize1DCoarseMesh(Float_t x) | |
755 | { | |
756 | //default x=0.05 | |
757 | //Sets the bin size in the coarse 1D mesh | |
20dddfab | 758 | fBinsize1dCoarse =x; |
2b9786f4 | 759 | fHBTprocessor->SetBinSize1DCoarseMesh(x); |
760 | } | |
761 | /*******************************************************************/ | |
762 | ||
763 | void AliGenHBTprocessor::SetNBins3DFineMesh(Int_t n) | |
764 | { | |
765 | //default n = 8 | |
766 | //Sets the number of bins in the 3D mesh | |
20dddfab | 767 | fN3dFine =n; |
2b9786f4 | 768 | fHBTprocessor->SetNBins3DFineMesh(n); |
769 | } | |
770 | /*******************************************************************/ | |
771 | void AliGenHBTprocessor::SetBinSize3DFineMesh(Float_t x) | |
772 | { | |
773 | //default x=0.01 | |
774 | //Sets the bin size in the 3D mesh | |
20dddfab | 775 | fBinsize3dFine =x; |
2b9786f4 | 776 | fHBTprocessor->SetBinSize3DFineMesh(x); |
777 | } | |
778 | /*******************************************************************/ | |
779 | ||
780 | void AliGenHBTprocessor::SetNBins3DCoarseMesh(Int_t n) | |
781 | { | |
782 | //default n = 2 | |
783 | //Sets the number of bins in the coarse 3D mesh | |
784 | ||
20dddfab | 785 | fN3dCoarse = n; |
2b9786f4 | 786 | fHBTprocessor->SetNBins3DCoarseMesh(n); |
787 | } | |
788 | /*******************************************************************/ | |
789 | void AliGenHBTprocessor::SetBinSize3DCoarseMesh(Float_t x) | |
790 | { | |
791 | //default x=0.08 | |
792 | //Sets the bin size in the coarse 3D mesh | |
20dddfab | 793 | fBinsize3dCoarse = x; |
2b9786f4 | 794 | fHBTprocessor->SetBinSize3DCoarseMesh(x); |
795 | } | |
796 | /*******************************************************************/ | |
797 | ||
798 | void AliGenHBTprocessor::SetNBins3DFineProjectMesh(Int_t n ) | |
799 | { | |
800 | //default n =3 | |
801 | //Sets the number of bins in the fine project mesh | |
20dddfab | 802 | fN3dFineProject = n; |
2b9786f4 | 803 | fHBTprocessor->SetNBins3DFineProjectMesh(n); |
804 | } | |
805 | /*******************************************************************/ | |
806 | ||
807 | ||
808 | /*******************************************************************/ | |
809 | ||
810 | ||
811 | ||
812 | ||
813 | ||
814 | ||
815 | void AliGenHBTprocessor::DefineParticles() | |
816 | { | |
817 | // | |
818 | // Load standard numbers for GEANT particles and PDG conversion | |
819 | fNPDGCodes = 0; //this is done in the constructor - but in any case ... | |
820 | ||
821 | fPDGCode[fNPDGCodes++]=-99; // 0 = unused location | |
822 | fPDGCode[fNPDGCodes++]=22; // 1 = photon | |
823 | fPDGCode[fNPDGCodes++]=-11; // 2 = positron | |
824 | fPDGCode[fNPDGCodes++]=11; // 3 = electron | |
825 | fPDGCode[fNPDGCodes++]=12; // 4 = neutrino e | |
826 | fPDGCode[fNPDGCodes++]=-13; // 5 = muon + | |
827 | fPDGCode[fNPDGCodes++]=13; // 6 = muon - | |
828 | fPDGCode[fNPDGCodes++]=111; // 7 = pi0 | |
829 | fPDGCode[fNPDGCodes++]=211; // 8 = pi+ | |
830 | fPDGCode[fNPDGCodes++]=-211; // 9 = pi- | |
831 | fPDGCode[fNPDGCodes++]=130; // 10 = Kaon Long | |
832 | fPDGCode[fNPDGCodes++]=321; // 11 = Kaon + | |
833 | fPDGCode[fNPDGCodes++]=-321; // 12 = Kaon - | |
834 | fPDGCode[fNPDGCodes++]=2112; // 13 = Neutron | |
835 | fPDGCode[fNPDGCodes++]=2212; // 14 = Proton | |
836 | fPDGCode[fNPDGCodes++]=-2212; // 15 = Anti Proton | |
837 | fPDGCode[fNPDGCodes++]=310; // 16 = Kaon Short | |
838 | fPDGCode[fNPDGCodes++]=221; // 17 = Eta | |
839 | fPDGCode[fNPDGCodes++]=3122; // 18 = Lambda | |
840 | fPDGCode[fNPDGCodes++]=3222; // 19 = Sigma + | |
841 | fPDGCode[fNPDGCodes++]=3212; // 20 = Sigma 0 | |
842 | fPDGCode[fNPDGCodes++]=3112; // 21 = Sigma - | |
843 | fPDGCode[fNPDGCodes++]=3322; // 22 = Xi0 | |
844 | fPDGCode[fNPDGCodes++]=3312; // 23 = Xi- | |
845 | fPDGCode[fNPDGCodes++]=3334; // 24 = Omega- | |
846 | fPDGCode[fNPDGCodes++]=-2112; // 25 = Anti Proton | |
847 | fPDGCode[fNPDGCodes++]=-3122; // 26 = Anti Proton | |
848 | fPDGCode[fNPDGCodes++]=-3222; // 27 = Anti Sigma - | |
849 | fPDGCode[fNPDGCodes++]=-3212; // 28 = Anti Sigma 0 | |
850 | fPDGCode[fNPDGCodes++]=-3112; // 29 = Anti Sigma 0 | |
851 | fPDGCode[fNPDGCodes++]=-3322; // 30 = Anti Xi 0 | |
852 | fPDGCode[fNPDGCodes++]=-3312; // 31 = Anti Xi + | |
853 | fPDGCode[fNPDGCodes++]=-3334; // 32 = Anti Omega + | |
854 | } | |
855 | ||
856 | /*******************************************************************/ | |
857 | Int_t AliGenHBTprocessor::IdFromPDG(Int_t pdg) const | |
858 | { | |
859 | // | |
860 | // Return Geant3 code from PDG and pseudo ENDF code | |
861 | // | |
862 | for(Int_t i=0;i<fNPDGCodes;++i) | |
863 | if(pdg==fPDGCode[i]) return i; | |
864 | return -1; | |
865 | } | |
866 | Int_t AliGenHBTprocessor::PDGFromId(Int_t id) const | |
867 | { | |
868 | // | |
869 | // Return PDG code and pseudo ENDF code from Geant3 code | |
870 | // | |
871 | if(id>0 && id<fNPDGCodes) return fPDGCode[id]; | |
872 | else return -1; | |
4c90f2a0 | 873 | } |
874 | Double_t AliGenHBTprocessor::ThetaToEta(Double_t arg) | |
875 | { | |
876 | //converts etha(azimuthal angle) to Eta (pseudorapidity). Argument in radians | |
877 | ||
878 | if(arg>= TMath::Pi()) return 709.0;//This number is the biggest wich not crashes exp(x) | |
879 | if(arg<= 0.0) return -709.0;// | |
880 | ||
881 | arg -= TMath::Pi()/2.; | |
882 | if (arg > 0.0) | |
883 | { | |
884 | return -TMath::Log( TMath::Tan(arg/2.)) ; | |
885 | } | |
886 | else | |
887 | { | |
888 | return TMath::Log( TMath::Tan(-arg/2.)) ; | |
889 | } | |
890 | } | |
891 | ||
2b9786f4 | 892 | /*******************************************************************/ |
893 | /****** ROUTINES USED FOR COMMUNUCATION ********/ | |
894 | /******************** WITH FORTRAN ********************/ | |
895 | /*******************************************************************/ | |
896 | ||
897 | #ifndef WIN32 | |
898 | # define hbtpran hbtpran_ | |
899 | # define alihbtp_puttrack alihbtp_puttrack_ | |
900 | # define alihbtp_gettrack alihbtp_gettrack_ | |
901 | # define alihbtp_getnumberevents alihbtp_getnumberevents_ | |
902 | # define alihbtp_getnumbertracks alihbtp_getnumbertracks_ | |
903 | # define alihbtp_initialize alihbtp_initialize_ | |
904 | # define alihbtp_setactiveeventnumber alihbtp_setactiveeventnumber_ | |
905 | # define alihbtp_setparameters alihbtp_setparameters_ | |
20dddfab | 906 | # define type_ofCall |
2b9786f4 | 907 | |
908 | #else | |
909 | # define hbtpran HBTPRAN | |
910 | # define alihbtp_puttrack ALIHBTP_PUTTRACK | |
911 | # define alihbtp_gettrack ALIHBTP_GETTRACK | |
912 | # define alihbtp_getnumberevents ALIHBTP_GETNUMBEREVENTS | |
913 | # define alihbtp_getnumbertracks ALIHBTP_GETNUMBERTRACKS | |
914 | # define alihbtp_initialize ALIHBTP_INITIALIZE | |
915 | # define alihbtp_setactiveeventnumber ALIHBTP_SETACTIVEEVENTNUMBER | |
916 | # define alihbtp_setparameters ALIHBTP_SETPARAMETERS | |
20dddfab | 917 | # define type_ofCall _stdcall |
2b9786f4 | 918 | #endif |
919 | ||
920 | #include "AliGenCocktailAfterBurner.h" | |
921 | #include <string.h> | |
922 | /*******************************************************************/ | |
923 | ||
924 | AliGenCocktailAfterBurner* GetGenerator() | |
925 | { | |
926 | // This function has two tasks: | |
927 | // Check if environment is OK (exist gAlice and generator) | |
928 | // Returns pointer to genrator | |
929 | //to be changed with TFolders | |
930 | ||
931 | if(!gAlice) | |
932 | { | |
933 | cout<<endl<<"ERROR: There is NO gALICE! Check what you are doing!"<<endl; | |
84b7985c | 934 | gROOT->Fatal("AliGenHBTprocessor.cxx: GetGenerator()", |
2b9786f4 | 935 | "\nRunning HBT Processor without gAlice... Exiting \n"); |
84b7985c | 936 | return 0x0; |
2b9786f4 | 937 | } |
938 | AliGenerator * gen = gAlice->Generator(); | |
939 | ||
940 | if (!gen) | |
941 | { | |
942 | gAlice->Fatal("AliGenHBTprocessor.cxx: GetGenerator()", | |
943 | "\nThere is no generator in gAlice, exiting\n"); | |
84b7985c | 944 | return 0x0; |
2b9786f4 | 945 | } |
84b7985c | 946 | |
947 | //we do not sure actual type of the genetator | |
948 | //and simple casting is risky - we use ROOT machinery to do safe cast | |
2b9786f4 | 949 | |
84b7985c | 950 | TClass* cabclass = AliGenCocktailAfterBurner::Class(); //get AliGenCocktailAfterBurner TClass |
951 | TClass* genclass = gen->IsA();//get TClass of the generator we got from galice | |
952 | //use casting implemented in TClass | |
953 | //cast gen to cabclass | |
20dddfab | 954 | AliGenCocktailAfterBurner* cab=(AliGenCocktailAfterBurner*)genclass->DynamicCast(cabclass,gen); |
84b7985c | 955 | |
20dddfab | 956 | if (cab == 0x0)//if generator that we got is not AliGenCocktailAfterBurner or its descendant we get null |
84b7985c | 957 | { //then quit with error |
2b9786f4 | 958 | gAlice->Fatal("AliGenHBTprocessor.cxx: GetGenerator()", |
84b7985c | 959 | "\nThe main Generator is not a AliGenCocktailAfterBurner, exiting\n"); |
960 | return 0x0; | |
2b9786f4 | 961 | } |
2b9786f4 | 962 | // cout<<endl<<"Got generator"<<endl; |
20dddfab | 963 | return cab; |
2b9786f4 | 964 | |
965 | } | |
966 | /*******************************************************************/ | |
967 | ||
968 | AliGenHBTprocessor* GetAliGenHBTprocessor() | |
969 | { | |
970 | //returns pointer to the current instance of AliGenHBTprocessor in | |
971 | //AliGenCocktailAfterBurner (can be more than one) | |
972 | // | |
973 | AliGenCocktailAfterBurner* gen = GetGenerator(); | |
84b7985c | 974 | AliGenerator* g = gen->GetCurrentGenerator(); |
975 | if(g == 0x0) | |
976 | { | |
977 | gAlice->Fatal("AliGenHBTprocessor.cxx: GetAliGenHBTprocessor()", | |
978 | "Can not get the current generator. Exiting"); | |
979 | return 0x0; | |
980 | } | |
981 | ||
982 | TClass* hbtpclass = AliGenHBTprocessor::Class(); //get AliGenCocktailAfterBurner TClass | |
983 | TClass* gclass = g->IsA();//get TClass of the current generator we got from CAB | |
984 | AliGenHBTprocessor* hbtp = (AliGenHBTprocessor*)gclass->DynamicCast(hbtpclass,g);//try to cast | |
985 | if (hbtp == 0x0) | |
2b9786f4 | 986 | { |
987 | gAlice->Fatal("AliGenHBTprocessor.cxx: GetAliGenHBTprocessor()", | |
988 | "\nCurrernt generator in AliGenCocktailAfterBurner is not a AliGenHBTprocessor, exiting\n"); | |
84b7985c | 989 | return 0x0; |
2b9786f4 | 990 | } |
2b9786f4 | 991 | return hbtp; |
992 | } | |
993 | ||
994 | /*******************************************************************/ | |
20dddfab | 995 | extern "C" void type_ofCall alihbtp_setparameters() |
2b9786f4 | 996 | { |
997 | //dummy | |
998 | } | |
999 | ||
20dddfab | 1000 | extern "C" void type_ofCall alihbtp_initialize() |
2b9786f4 | 1001 | { |
1002 | //dummy | |
1003 | } | |
1004 | ||
1005 | /*******************************************************************/ | |
1006 | ||
20dddfab | 1007 | extern "C" void type_ofCall alihbtp_getnumberevents(Int_t &nev) |
2b9786f4 | 1008 | { |
1009 | //passes number of events to the fortran | |
1010 | if(gDebug) cout<<"alihbtp_getnumberevents("<<nev<<") ...."; | |
1011 | AliGenCocktailAfterBurner* gen = GetGenerator(); | |
1012 | if(!gen) | |
1013 | { | |
1014 | nev = -1; | |
1015 | return; | |
1016 | } | |
1017 | ||
1018 | nev = gen->GetNumberOfEvents(); | |
1019 | ||
1020 | if(gDebug>5) cout<<"EXITED N Ev = "<<nev<<endl; | |
1021 | ||
1022 | } | |
1023 | ||
1024 | /*******************************************************************/ | |
1025 | ||
20dddfab | 1026 | extern "C" void type_ofCall alihbtp_setactiveeventnumber(Int_t & nev) |
2b9786f4 | 1027 | { |
1028 | //sets active event in generator (AliGenCocktailAfterBurner) | |
1029 | ||
1030 | if(gDebug>5) cout<<"alihbtp_setactiveeventnumber("<<nev<<") ...."; | |
1031 | if(gDebug>0) cout<<"Asked for event "<<nev-1<<endl; | |
1032 | AliGenCocktailAfterBurner* gen = GetGenerator(); | |
1033 | if(!gen) return; | |
1034 | gen->SetActiveEventNumber(nev - 1); //fortran numerates events from 1 to N | |
1035 | ||
1036 | if(gDebug>5) cout<<"EXITED returned "<<nev<<endl; | |
1037 | ||
1038 | } | |
1039 | /*******************************************************************/ | |
1040 | ||
20dddfab | 1041 | extern "C" void type_ofCall alihbtp_getnumbertracks(Int_t &ntracks) |
2b9786f4 | 1042 | { |
1043 | //passes number of particles in active event to the fortran | |
1044 | if(gDebug>5) cout<<"alihbtp_getnumbertracks("<<ntracks<<") ...."; | |
1045 | ||
1046 | AliGenCocktailAfterBurner* gen = GetGenerator(); | |
1047 | if (!gen) | |
1048 | { | |
1049 | ntracks = -1; | |
1050 | return; | |
1051 | } | |
1052 | ||
1053 | ntracks = gen->GetActiveStack()->GetNprimary(); | |
1054 | if(gDebug>5) cout<<"EXITED Ntracks = "<<ntracks<<endl; | |
1055 | } | |
1056 | ||
1057 | /*******************************************************************/ | |
1058 | ||
20dddfab | 1059 | extern "C" void type_ofCall |
2b9786f4 | 1060 | alihbtp_puttrack(Int_t & n,Int_t& flag, Float_t& px, |
1061 | Float_t& py, Float_t& pz, Int_t& geantpid) | |
1062 | { | |
1063 | //sets new parameters (momenta) in track number n | |
1064 | // in the active event | |
1065 | // n - number of the track in active event | |
1066 | // flag - flag of the track | |
1067 | // px,py,pz - momenta | |
1068 | // geantpid - type of the particle - Geant Particle ID | |
1069 | ||
1070 | if(gDebug>5) cout<<"alihbtp_puttrack("<<n<<") ...."; | |
1071 | ||
1072 | AliGenCocktailAfterBurner* gen = GetGenerator(); | |
1073 | if(!gen) return; | |
1074 | ||
1075 | TParticle * track = gen->GetActiveStack()->Particle(n-1); | |
1076 | ||
1077 | AliGenHBTprocessor* g = GetAliGenHBTprocessor(); | |
1078 | ||
1079 | //check to be deleted | |
1080 | if (geantpid != (g->IdFromPDG( track->GetPdgCode() ))) | |
1081 | { | |
ea6982d2 | 1082 | cerr<<endl<<" AliGenHBTprocessor.cxx: alihbtp_puttrack: SOMETHING IS GOING BAD:\n GEANTPIDS ARE NOT THE SAME"<<endl; |
2b9786f4 | 1083 | } |
1084 | ||
1085 | if(gDebug>0) | |
1086 | if (px != track->Px()) | |
1087 | cout<<"Px diff. = "<<px - track->Px()<<endl; | |
1088 | ||
1089 | if(gDebug>3) cout<<" track->GetPdgCode() --> "<<track->GetPdgCode()<<endl; | |
1090 | ||
1091 | ||
1092 | ||
5925692f | 1093 | Float_t m = track->GetMass(); |
20dddfab | 1094 | Float_t e = TMath::Sqrt(m*m+px*px+py*py+pz*pz); |
1095 | track->SetMomentum(px,py,pz,e); | |
2b9786f4 | 1096 | |
1097 | g->SetHbtPStatusCode(flag,n-1); | |
1098 | ||
1099 | if(gDebug>5) cout<<"EXITED "<<endl; | |
1100 | } | |
1101 | ||
1102 | /*******************************************************************/ | |
1103 | ||
20dddfab | 1104 | extern "C" void type_ofCall |
2b9786f4 | 1105 | alihbtp_gettrack(Int_t & n,Int_t & flag, Float_t & px, |
1106 | Float_t & py, Float_t & pz, Int_t & geantpid) | |
1107 | ||
1108 | { | |
1109 | //passes track parameters to the fortran | |
1110 | // n - number of the track in active event | |
1111 | // flag - flag of the track | |
1112 | // px,py,pz - momenta | |
1113 | // geantpid - type of the particle - Geant Particle ID | |
1114 | ||
1115 | if(gDebug>5) cout<<"alihbtp_gettrack("<<n<<") ...."; | |
1116 | AliGenCocktailAfterBurner* gen = GetGenerator(); | |
1117 | ||
1118 | if (!gen) | |
1119 | { | |
1120 | n = -1; | |
1121 | flag =-1; | |
1122 | px = py = pz = -1; | |
1123 | geantpid = -1; | |
1124 | return; | |
1125 | } | |
1126 | ||
1127 | TParticle * track = gen->GetActiveStack()->Particle(n-1); | |
1128 | AliGenHBTprocessor* g = GetAliGenHBTprocessor(); | |
1129 | ||
1130 | flag = g->GetHbtPStatusCode(n-1); | |
1131 | ||
1132 | px = (Float_t)track->Px(); | |
1133 | py = (Float_t)track->Py(); | |
1134 | pz = (Float_t)track->Pz(); | |
1135 | ||
1136 | geantpid = g->IdFromPDG( track->GetPdgCode() ); | |
1137 | ||
1138 | if(gDebug>5) cout<<"EXITED "<<endl; | |
1139 | } | |
1140 | ||
1141 | /*******************************************************************/ | |
20dddfab | 1142 | extern "C" Float_t type_ofCall hbtpran(Int_t &) |
2b9786f4 | 1143 | { |
1144 | //interface to the random number generator | |
1145 | return sRandom->Rndm(); | |
1146 | } | |
1147 | ||
1148 | /*******************************************************************/ | |
1149 | ||
1150 | ||
1151 | /*******************************************************************/ |