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e087ab36 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
695dc56f | 18 | #include "AliGenHBTosl.h" |
e087ab36 | 19 | #include "AliLog.h" |
20 | ||
695dc56f | 21 | //__________________________________________________________ |
22 | ///////////////////////////////////////////////////////////// | |
23 | // // | |
24 | // class AliGenHBTosl // | |
25 | // // | |
26 | // Genarator simulating particle correlations // | |
27 | // // | |
28 | // The main idea of the generator is to produce particles // | |
29 | // according to some distribution of two particle // | |
30 | // property. In HBT they are qout,qsie and qlong. // | |
31 | // In order to be able to generate signal that produces // | |
32 | // given two particle correlation background must be // | |
33 | // known before in order to produce the shape of signal // | |
34 | // to randomize given distribution from. // | |
35 | // // | |
36 | // The generator works as follows: // | |
37 | // 1. Coarse Background (fQCoarseBackground) is generated // | |
38 | // ade from the particles // | |
39 | // given by the external generator (variable // | |
40 | // fGenerator) by the mixing technique. // | |
41 | // 2. Coarse signal is prduced by multiplying Coarse // | |
42 | // background by a required function // | |
43 | // See method FillCoarseSignal // | |
44 | // 3. Signal is randomized out of the coarse signal // | |
45 | // histogram (two particle property). First particle // | |
46 | // is taken from the external generator, and the // | |
47 | // second one is CALCULATED on the basis of the first // | |
48 | // one and the two particle property (qout,qside,qlong)// | |
49 | // Background is made by the mixing out of the // | |
50 | // genereted signal events. // | |
51 | // This step is cotinued up to the moment signal // | |
52 | // histogram has enough statistics (data member // | |
53 | // fMinFill) // | |
54 | // See method StartSignalPass1() // | |
55 | // 4. chi is calculated for each bin (chiarray variqable) // | |
56 | // (not the chi2 because sign is important) // | |
57 | // Two particle prioperty // | |
58 | // (qout,qside,qlong) is chosen at the points that // | |
59 | // chi is the smallest. First particle is taken from // | |
60 | // the the external generator (fGenerator) and second's / | |
61 | // momenta are caclulated out of their momenta and // | |
62 | // (qout,qside,qlong). Background is updated // | |
63 | // continuesely for all the events. This step is // | |
64 | // continued until stability conditions are fullfiled // | |
65 | // or maximum number of iteration is reached. // | |
66 | // 5. The same as step 4 but events are stored. // | |
67 | // // | |
68 | //////////////////////////////////////////////////////////// | |
69 | ||
695dc56f | 70 | #include <TCanvas.h> |
71 | ||
72 | ||
73 | #include <TH3D.h> | |
74 | #include <TList.h> | |
75 | #include <TPDGCode.h> | |
76 | #include <TParticle.h> | |
77 | #include <AliStack.h> | |
78 | #include <TMath.h> | |
79 | #include <TVector3.h> | |
80 | #include <TStopwatch.h> | |
81 | #include <TFile.h> | |
82 | ||
83 | #include "AliGenCocktailAfterBurner.h" | |
84 | #include "AliGeVSimParticle.h" | |
85 | #include "AliGenGeVSim.h" | |
86 | #include "AliGenHIJINGpara.h" | |
87 | ||
5fdc214b | 88 | |
695dc56f | 89 | /***********************************************************/ |
90 | ClassImp(AliGenHBTosl) | |
91 | ||
92 | AliGenHBTosl::AliGenHBTosl(): | |
93 | AliGenerator(), | |
94 | fQCoarseBackground(0x0), | |
95 | fQCoarseSignal(0x0), | |
96 | fQSignal(0x0), | |
97 | fQBackground(0x0), | |
98 | fQSecondSignal(0x0), | |
99 | fQSecondBackground(0x0), | |
5fdc214b | 100 | fQRange(0.06), |
695dc56f | 101 | fQNBins(60), |
102 | fGenerator(0x0), | |
1c56e311 | 103 | fStackBuffer(0), |
695dc56f | 104 | fBufferSize(5), |
5fdc214b | 105 | fNBinsToScale(Int_t(fQNBins*0.1)), |
f5b253b3 | 106 | fDebug(0), |
1c56e311 | 107 | fSignalShapeCreated(0), |
5fdc214b | 108 | fMaxIterations(1000), |
695dc56f | 109 | fMaxChiSquereChange(0.01), |
110 | fMaxChiSquerePerNDF(1.5), | |
111 | fQRadius(8.0), | |
112 | fPID(kPiPlus), | |
113 | fSamplePhiMin(-0.01), | |
114 | fSamplePhiMax(TMath::TwoPi()+0.01), | |
115 | fSignalRegion(0.0), | |
5fdc214b | 116 | fMinFill(1000), |
1c56e311 | 117 | fSwapped(0), |
5fdc214b | 118 | fLogFile(0x0) |
695dc56f | 119 | { |
120 | //default constructor | |
121 | } | |
122 | /***********************************************************/ | |
123 | ||
124 | AliGenHBTosl::AliGenHBTosl(Int_t n, Int_t pid): | |
125 | AliGenerator(n), | |
126 | fQCoarseBackground(0x0), | |
127 | fQCoarseSignal(0x0), | |
128 | fQSignal(0x0), | |
129 | fQBackground(0x0), | |
130 | fQSecondSignal(0x0), | |
131 | fQSecondBackground(0x0), | |
5fdc214b | 132 | fQRange(0.06), |
695dc56f | 133 | fQNBins(60), |
134 | fGenerator(0x0), | |
1c56e311 | 135 | fStackBuffer(0), |
695dc56f | 136 | fBufferSize(5), |
5fdc214b | 137 | fNBinsToScale(Int_t(fQNBins*0.1)), |
f5b253b3 | 138 | fDebug(0), |
695dc56f | 139 | fSignalShapeCreated(kFALSE), |
5fdc214b | 140 | fMaxIterations(1000), |
695dc56f | 141 | fMaxChiSquereChange(0.01), |
142 | fMaxChiSquerePerNDF(1.5), | |
143 | fQRadius(8.0), | |
144 | fPID(pid), | |
145 | fSamplePhiMin(-0.01), | |
146 | fSamplePhiMax(TMath::TwoPi()+0.01), | |
147 | fSignalRegion(0.0), | |
5fdc214b | 148 | fMinFill(1000), |
1c56e311 | 149 | fSwapped(0), |
5fdc214b | 150 | fLogFile(0x0) |
695dc56f | 151 | { |
152 | //default constructor | |
153 | } | |
1c56e311 | 154 | |
155 | AliGenHBTosl::AliGenHBTosl(const AliGenHBTosl & hbt): | |
156 | AliGenerator(-1), | |
157 | fQCoarseBackground(0x0), | |
158 | fQCoarseSignal(0x0), | |
159 | fQSignal(0x0), | |
160 | fQBackground(0x0), | |
161 | fQSecondSignal(0x0), | |
162 | fQSecondBackground(0x0), | |
163 | fQRange(0.06), | |
164 | fQNBins(60), | |
165 | fGenerator(0x0), | |
166 | fStackBuffer(0), | |
167 | fBufferSize(5), | |
168 | fNBinsToScale(Int_t(fQNBins*0.1)), | |
169 | fDebug(0), | |
170 | fSignalShapeCreated(kFALSE), | |
171 | fMaxIterations(1000), | |
172 | fMaxChiSquereChange(0.01), | |
173 | fMaxChiSquerePerNDF(1.5), | |
174 | fQRadius(8.0), | |
175 | fPID(kPiPlus), | |
176 | fSamplePhiMin(-0.01), | |
177 | fSamplePhiMax(TMath::TwoPi()+0.01), | |
178 | fSignalRegion(0.0), | |
179 | fMinFill(1000), | |
180 | fSwapped(0), | |
181 | fLogFile(0x0) | |
182 | { | |
183 | // Copy constructor | |
184 | hbt.Copy(*this); | |
185 | } | |
695dc56f | 186 | /***********************************************************/ |
187 | ||
188 | AliGenHBTosl::~AliGenHBTosl() | |
189 | { | |
190 | //destructor | |
191 | delete fQCoarseSignal; | |
192 | delete fQCoarseBackground; | |
193 | delete fQSignal; | |
194 | delete fQBackground; | |
195 | delete fGenerator; | |
196 | delete fQSecondSignal; | |
197 | delete fQSecondBackground; | |
5fdc214b | 198 | delete fLogFile; |
695dc56f | 199 | } |
5fdc214b | 200 | /***********************************************************/ |
695dc56f | 201 | |
202 | void AliGenHBTosl::Init() | |
203 | { | |
204 | //Initializes generator | |
205 | if (fGenerator == 0x0) | |
206 | { | |
207 | ||
208 | AliGenHIJINGpara* bkggen = new AliGenHIJINGpara(fNpart*4); | |
209 | fGenerator = bkggen; | |
210 | ||
211 | /* | |
212 | AliGenGeVSim * gevsim = new AliGenGeVSim(0.0); | |
213 | AliGeVSimParticle* kplus = new AliGeVSimParticle(fPID,1,fNpart, 0.17, 0.9); | |
214 | gevsim->AddParticleType(kplus); | |
215 | ||
216 | fGenerator = gevsim; | |
217 | */ | |
218 | ||
219 | /* | |
220 | ||
221 | AliMevSimConfig *c = new AliMevSimConfig(1); | |
222 | c->SetRectPlane(1); // reaction plane control, model 4 | |
223 | c->SetGrid(80,80); | |
224 | ||
225 | AliGenMevSim *mevsim = new AliGenMevSim(c); | |
226 | mevsim->SetPtRange(0.001, 3); | |
227 | mevsim->SetMomentumRange(0.1, 3); | |
228 | mevsim->SetTrackingFlag(0); | |
229 | mevsim->SetOrigin(0.0, 0.0, 0.0); | |
230 | mevsim->SetSigma(0.0, 0.0, 0.0); | |
231 | AliMevSimParticle *kplus = new AliMevSimParticle(kKPlus, fNpart, 0, 0.25, 0.0, 2, 0.15, 0.0, 0.0 ); | |
232 | mevsim->AddParticleType(kplus); | |
233 | fGenerator = mevsim; | |
234 | */ | |
235 | ||
236 | fGenerator->SetOrigin(fOrigin[0],fOrigin[1],fOrigin[2]); | |
5fdc214b | 237 | static const Double_t kDegToRadCF = 180./TMath::Pi(); |
695dc56f | 238 | fGenerator->SetMomentumRange(fPtMin,fPtMax); |
5fdc214b | 239 | fGenerator->SetPhiRange(kDegToRadCF*fPhiMin,kDegToRadCF*fPhiMax); |
695dc56f | 240 | fGenerator->SetYRange(fYMin,fYMax); |
5fdc214b | 241 | fGenerator->SetThetaRange(kDegToRadCF*fThetaMin,kDegToRadCF*fThetaMax); |
695dc56f | 242 | fGenerator->Init(); |
243 | ||
244 | } | |
245 | ||
5fdc214b | 246 | // fQCoarseBackground = new TH3D("fQCoarseBackground","",fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange); |
247 | // fQCoarseSignal = new TH3D("fQCoarseSignal","fQCoarseSignal",fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange); | |
248 | // fQCoarseBackground->Sumw2(); | |
249 | // fQCoarseSignal->Sumw2(); | |
250 | ||
695dc56f | 251 | fQSignal = new TH3D("fQSignal1","fQSignal",fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange); |
252 | fQBackground = new TH3D("fQBackground1","fQBackground",fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange); | |
253 | ||
254 | fQSecondSignal = new TH3D("fQSignal2","fQSignal",fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange); | |
255 | fQSecondBackground = new TH3D("fQBackground2","fQBackground",fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange); | |
256 | ||
695dc56f | 257 | fQSignal->Sumw2(); |
258 | fQBackground->Sumw2(); | |
259 | fQSecondSignal->Sumw2(); | |
260 | fQSecondBackground->Sumw2(); | |
5fdc214b | 261 | |
262 | fLogFile = new ofstream("BadEvent",ios::out); | |
263 | ||
695dc56f | 264 | } |
265 | /***********************************************************/ | |
266 | ||
267 | void AliGenHBTosl::Generate() | |
268 | { | |
269 | //the main method | |
5fdc214b | 270 | |
271 | ofstream& logfile = *fLogFile; | |
272 | logfile<<"Generate"<<"Attempts to generate "<<fNpart<<" particles."; | |
273 | ||
274 | ||
695dc56f | 275 | if (fStackBuffer == 0x0) fStackBuffer = new TList(); |
276 | //Here is initialization level | |
277 | if (fSignalShapeCreated == kFALSE) | |
278 | { | |
279 | TH3D *hs = 0x0, *hb = 0x0; | |
280 | TFile* file; | |
281 | ||
282 | file = TFile::Open("QTSignal.root"); | |
283 | if (file) | |
284 | { | |
285 | hs = (TH3D*)file->Get("fQSignal1"); | |
286 | if (hs) hs->SetDirectory(0x0); | |
287 | } | |
288 | delete file; | |
289 | ||
290 | file = TFile::Open("QTBackground.root"); | |
291 | if (file) | |
292 | { | |
293 | hb = (TH3D*)file->Get("fQBackground1"); | |
294 | if (hb) hb->SetDirectory(0x0); | |
295 | } | |
296 | delete file; | |
297 | ||
298 | if (hs && hb) | |
299 | { | |
300 | Info("Generate","**********************************"); | |
301 | Info("Generate","Found starting histograms in files"); | |
302 | Info("Generate","**********************************"); | |
303 | delete fQSignal; | |
304 | delete fQBackground; | |
305 | fQSignal = hs; | |
306 | fQBackground = hb; | |
307 | } | |
308 | else | |
309 | { | |
310 | TH3D *cs = 0x0, *cb = 0x0; | |
311 | file = TFile::Open("QTCoarseBackground.root"); | |
312 | if (file) | |
313 | { | |
314 | cb = (TH3D*)file->Get("fQCoarseBackground"); | |
315 | if (cb) cb->SetDirectory(0x0); | |
316 | } | |
317 | delete file; | |
318 | ||
319 | file = TFile::Open("QTCoarseSignal.root"); | |
320 | if (file) | |
321 | { | |
322 | cs = (TH3D*)file->Get("fQCoarseSignal"); | |
323 | if (cs) cs->SetDirectory(0x0); | |
324 | } | |
325 | delete file; | |
326 | ||
327 | if (cs && cb) | |
328 | { | |
329 | ||
330 | Info("Generate","Got Coarse signal and bkg from files"); | |
331 | delete fQCoarseBackground; | |
332 | delete fQCoarseSignal; | |
333 | fQCoarseSignal = cs; | |
334 | fQCoarseBackground = cb; | |
335 | } | |
336 | else | |
337 | { | |
338 | if (cb) | |
339 | { | |
340 | Info("Generate","Got Coarse bkg from file"); | |
341 | delete fQCoarseBackground; | |
342 | fQCoarseBackground = cb; | |
343 | } | |
344 | else | |
5fdc214b | 345 | { |
346 | fQCoarseBackground = new TH3D("fQCoarseBackground","",fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange); | |
347 | fQCoarseBackground->Sumw2(); | |
348 | ||
695dc56f | 349 | FillCoarse(); //create coarse background - just to know the spectrum |
350 | } | |
5fdc214b | 351 | |
352 | fQCoarseSignal = new TH3D("fQCoarseSignal","fQCoarseSignal",fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange, fQNBins,-fQRange,fQRange); | |
353 | fQCoarseSignal->Sumw2(); | |
695dc56f | 354 | FillCoarseSignal();//create first coarse signal by brutal multplication coarse background and required function shape |
355 | } | |
356 | ||
357 | StartSignal(); //Initilizes the stack that is used for generation | |
358 | } | |
359 | fSignalShapeCreated = kTRUE; | |
360 | } | |
361 | ||
362 | AliStack* stack = RotateStack(); | |
363 | ||
364 | AliStack* genstack = fGenerator->GetStack(); | |
365 | if (genstack == 0x0) | |
366 | { | |
367 | genstack = new AliStack(fNpart); | |
368 | fGenerator->SetStack(genstack); | |
369 | } | |
370 | else | |
371 | { | |
372 | genstack->Reset(); | |
373 | } | |
374 | ||
375 | fGenerator->Generate(); | |
ea79897e | 376 | Int_t ntr = 0; |
695dc56f | 377 | if ( genstack->GetNtrack() < fNpart/2) |
378 | { | |
379 | Warning("Generate","************************************************************"); | |
380 | Warning("Generate","Generator generated (%d) less particles then expected (%d).", | |
381 | stack->GetNtrack(),fNpart/2); | |
382 | Warning("Generate","************************************************************"); | |
383 | } | |
384 | ||
385 | TH3D* work = new TH3D("work","work",fQNBins,-fQRange,fQRange,fQNBins,-fQRange,fQRange,fQNBins,-fQRange,fQRange); | |
5fdc214b | 386 | work->SetDirectory(0x0); |
387 | work->Sumw2(); | |
695dc56f | 388 | |
389 | Double_t*** chiarray = new Double_t** [fQNBins+1]; | |
390 | Double_t*** sigarray = new Double_t** [fQNBins+1]; | |
391 | ||
392 | for (Int_t i = 1; i<=fQNBins; i++) | |
393 | { | |
394 | chiarray[i] = new Double_t* [fQNBins+1]; | |
395 | sigarray[i] = new Double_t* [fQNBins+1]; | |
396 | ||
397 | for (Int_t k = 1; k<=fQNBins; k++) | |
398 | { | |
399 | chiarray[i][k] = new Double_t [fQNBins+1]; | |
400 | sigarray[i][k] = new Double_t [fQNBins+1]; | |
401 | } | |
402 | } | |
403 | ||
404 | ||
405 | Double_t scale = Scale(fQSignal,fQBackground); | |
406 | work->Divide(fQSignal,fQBackground,scale); | |
407 | ||
408 | Double_t binwdh = work->GetBinWidth(1)/2.; | |
409 | ||
410 | for (Int_t k = 1; k<=fQNBins; k++) | |
411 | { | |
412 | Double_t z = work->GetZaxis()->GetBinCenter(k); | |
413 | for (Int_t j = 1; j<=fQNBins; j++) | |
414 | { | |
415 | Double_t y = work->GetYaxis()->GetBinCenter(j); | |
416 | for (Int_t i = 1; i<=fQNBins; i++) | |
417 | { | |
418 | sigarray[i][j][k] = fQSignal->GetBinContent(i,j,k);//store current value of signal histogram | |
419 | Double_t x = work->GetXaxis()->GetBinCenter(i);//get center value of a bin (qinv) | |
420 | Double_t v = GetQOutQSideQLongCorrTheorValue(x,y,z);//get expected value of CF in that qinv | |
421 | Double_t diff = v - work->GetBinContent(i,j,k);//store difference betweeon current value, and desired value | |
422 | chiarray[i][j][k] = diff; // no-x x is a weight to get good distribution | |
423 | } | |
424 | } | |
425 | } | |
5fdc214b | 426 | |
427 | char msg[1000]; | |
428 | logfile<<endl; | |
429 | sprintf(msg,"\n"); | |
695dc56f | 430 | Int_t middlebin = fQNBins/2; |
5fdc214b | 431 | |
432 | for (Int_t k = middlebin-5; k < middlebin+5; k++) | |
433 | { | |
434 | Double_t tx = work->GetXaxis()->GetBinCenter(30); | |
435 | Double_t ty = work->GetYaxis()->GetBinCenter(30); | |
436 | Double_t tz = work->GetZaxis()->GetBinCenter(k); | |
437 | sprintf(msg,"% 6.5f ",GetQOutQSideQLongCorrTheorValue(tx,ty,tz)); | |
438 | logfile<<msg; | |
439 | } | |
440 | logfile<<endl; | |
441 | ||
695dc56f | 442 | for (Int_t k = middlebin-5; k < middlebin+5; k++) |
443 | { | |
5fdc214b | 444 | sprintf(msg,"% 6.5f ",work->GetBinContent(30,30,k)); |
445 | logfile<<msg; | |
695dc56f | 446 | } |
5fdc214b | 447 | logfile<<endl; |
695dc56f | 448 | |
449 | for (Int_t k = middlebin-5; k < middlebin+5; k++) | |
450 | { | |
5fdc214b | 451 | sprintf(msg,"% 6.5f ",chiarray[30][30][k]); |
452 | logfile<<msg; | |
695dc56f | 453 | } |
5fdc214b | 454 | logfile<<endl; |
695dc56f | 455 | |
456 | TParticle particle(fPID,0,-1,-1,-1,-1,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0); | |
457 | TParticle* second = &particle; | |
458 | ||
459 | Bool_t shortloop = kTRUE; | |
460 | Int_t sc = 0;//security check against infinite loop | |
461 | ||
462 | while ( (ntr+1) < fNpart) | |
463 | { | |
464 | Int_t xmax = 1; | |
465 | Int_t ymax = 1; | |
466 | Int_t zmax = 1; | |
467 | Double_t qout; | |
468 | Double_t qside; | |
469 | Double_t qlong; | |
470 | ||
471 | ||
472 | Int_t loopmin; | |
473 | Int_t loopmax; | |
474 | ||
475 | if (shortloop) | |
476 | { | |
477 | shortloop = kFALSE; | |
478 | loopmax = fQNBins; | |
479 | loopmin = 1; | |
480 | } | |
481 | else | |
482 | { | |
483 | shortloop = kTRUE; | |
484 | loopmax = fQNBins/2+fQNBins/4; | |
485 | loopmin = fQNBins/2-fQNBins/4; | |
486 | } | |
487 | ||
488 | ||
489 | for (Int_t k = loopmin; k <=loopmax; k++ ) | |
490 | { | |
491 | qlong = work->GetZaxis()->GetBinCenter(k); | |
492 | for (Int_t j = loopmin; j<=loopmax; j++) | |
493 | { | |
494 | qside = work->GetYaxis()->GetBinCenter(j); | |
495 | for (Int_t i = loopmin; i<=loopmax; i++) | |
496 | { | |
497 | qout = work->GetXaxis()->GetBinCenter(i); | |
498 | if (chiarray[xmax][ymax][zmax] < chiarray[i][j][k]) | |
499 | { | |
500 | xmax = i; | |
501 | ymax = j; | |
502 | zmax = k; | |
503 | } | |
504 | ||
505 | // Double_t qdist = TMath::Sqrt(qout*qout + qside*qside + qlong*qlong); | |
506 | ||
507 | // Double_t fact = chiarray[i][j][k];//chiarray is chi2 | |
508 | // if (fact > work->GetBinError(i,j,k))//if differece between what we want and | |
509 | // { //what we have is bigger than stat. error | |
510 | // xmax = i; //we force to fill that bin | |
511 | // ymax = j; | |
512 | // zmax = k; | |
513 | // break; | |
514 | // } | |
515 | } | |
516 | } | |
517 | } | |
5fdc214b | 518 | Double_t qlongc = work->GetZaxis()->GetBinCenter(zmax); |
519 | Double_t qsidec = work->GetYaxis()->GetBinCenter(ymax); | |
520 | Double_t qoutc = work->GetXaxis()->GetBinCenter(xmax); | |
695dc56f | 521 | |
5fdc214b | 522 | |
523 | sprintf(msg,"Generate Fill bin chi2(%d,%d,%d)=%f",xmax,ymax,zmax,chiarray[xmax][ymax][zmax]); | |
524 | logfile<<msg; | |
695dc56f | 525 | |
5fdc214b | 526 | qout = gRandom->Uniform(qoutc -binwdh, qoutc +binwdh); |
527 | qside = gRandom->Uniform(qsidec-binwdh, qsidec+binwdh); | |
528 | qlong = gRandom->Uniform(qlongc-binwdh, qlongc+binwdh); | |
695dc56f | 529 | |
530 | TParticle* first = 0; | |
ea79897e | 531 | Int_t jj = 0; |
532 | ||
533 | while (jj < genstack->GetNtrack()) | |
695dc56f | 534 | { |
ea79897e | 535 | TParticle* tmpp = genstack->Particle(jj++); |
695dc56f | 536 | if (tmpp->GetPdgCode() == fPID) |
537 | { | |
538 | if (CheckParticle(tmpp,0x0,stack) == kFALSE) | |
539 | { | |
540 | first = tmpp; | |
541 | break; | |
542 | } | |
543 | } | |
544 | } | |
545 | ||
546 | if (first == 0x0) | |
547 | { | |
548 | if ( fDebug > 2 ) Info("StartSignal","No more particles of that type"); | |
549 | break; | |
550 | } | |
551 | ||
552 | //Here put the check if this particle do not fall into signal region with other partticle | |
553 | ||
554 | Int_t retval = GetThreeD(first,second,qout,qside,qlong); | |
555 | if (retval) | |
556 | { | |
557 | //Info("StartSignal","Can not find momenta for this OSL and particle"); | |
558 | continue; | |
559 | } | |
560 | //in case this particle is falling into signal area with another | |
561 | //particle we take a another pair | |
562 | //it can intruduce artificial correlations | |
563 | Bool_t checkresult = CheckParticle(second,first,stack); | |
564 | if ( checkresult && (sc < 10) ) | |
565 | { | |
566 | sc++; | |
567 | continue; | |
568 | } | |
569 | sc = 0; | |
570 | ||
571 | //Put on output stack | |
572 | SetTrack(first,ntr); | |
573 | SetTrack(second,ntr); | |
574 | ||
575 | //Put on internal stack | |
576 | Int_t etmp; | |
577 | SetTrack(first,etmp,stack); | |
578 | SetTrack(second,etmp,stack); | |
579 | ||
5fdc214b | 580 | Double_t y = GetQOutQSideQLongCorrTheorValue(qoutc,qsidec,qlongc); |
695dc56f | 581 | |
582 | sigarray[xmax][ymax][zmax] ++; | |
583 | chiarray[xmax][ymax][zmax] = scale*sigarray[xmax][ymax][zmax]/fQBackground->GetBinContent(xmax,ymax,zmax); | |
584 | chiarray[xmax][ymax][zmax] = (y - chiarray[xmax][ymax][zmax]); | |
585 | ||
586 | } | |
587 | ||
588 | Mix(fStackBuffer,fQBackground,fQSecondSignal); //upgrate background | |
589 | Mix(stack,fQSignal,fQSecondBackground); //upgrate signal | |
5fdc214b | 590 | |
591 | delete work; | |
592 | ||
695dc56f | 593 | for (Int_t i = 1; i<=fQNBins; i++) |
594 | { | |
595 | for (Int_t k = 1; k<=fQNBins; k++) | |
596 | { | |
597 | delete [] chiarray[i][k]; | |
598 | delete [] sigarray[i][k]; | |
599 | } | |
600 | delete [] chiarray[i]; | |
601 | delete [] sigarray[i]; | |
602 | } | |
603 | delete [] chiarray; | |
604 | delete [] sigarray; | |
605 | } | |
606 | /***********************************************************/ | |
607 | ||
608 | void AliGenHBTosl::GetOneD(TParticle* first, TParticle* second,Double_t qinv) | |
609 | { | |
610 | //deprecated method that caclulates momenta of the second particle | |
611 | // out of qinv and the first particle | |
612 | //first particle is rotated that only X is non-zero | |
613 | ||
614 | ||
615 | Double_t m = first->GetMass(); | |
616 | Double_t msqrd = m*m; | |
617 | Double_t fourmassSquered = 4.*msqrd; | |
618 | ||
619 | //Condition that R must fullfill to be possible to have qinv less smaller then randomized | |
620 | // Double_t rRange = qinv*TMath::Sqrt(qinv*qinv + fourmassSquered)/fourmassSquered; | |
621 | // Double_t r = gRandom->Uniform(rRange); | |
622 | ||
623 | Double_t r = gRandom->Uniform(qinv); | |
624 | Double_t phi = gRandom->Uniform(TMath::TwoPi()); | |
625 | ||
626 | Double_t firstPx = first->P();//first particle is rotated that only X is non-zero thus P==Px | |
627 | Double_t px = 2.*msqrd*firstPx + firstPx*qinv*qinv; | |
628 | Double_t temp = qinv*qinv*qinv*qinv + fourmassSquered * (qinv*qinv - r*r ); | |
629 | if (temp < 0.0) | |
630 | { | |
631 | Error("GetOneD","temp is less then 0: %f",temp); | |
632 | return; | |
633 | } | |
634 | temp = temp*(msqrd+firstPx*firstPx); | |
635 | ||
636 | px = (px - TMath::Sqrt(temp))/(2.*msqrd); | |
637 | ||
638 | Double_t py = r*TMath::Sin(phi); | |
639 | Double_t pz = r*TMath::Cos(phi); | |
640 | ||
641 | TVector3 firstpvector(first->Px(),first->Py(),first->Pz()); | |
642 | TVector3 vector(px,py,pz); | |
643 | Rotate(firstpvector,vector); | |
644 | ||
645 | Double_t e = TMath::Sqrt(msqrd + vector.X()*vector.X() + vector.Y()*vector.Y() + vector.Z()*vector.Z()); | |
646 | second->SetMomentum(vector.X(),vector.Y(),vector.Z(),e); | |
647 | // TParticle* f = new TParticle(first->GetPdgCode(),0,-1,-1,-1,-1, firstPx,0,0,e=TMath::Sqrt(msqrd+firstPx*firstPx),0.0,0.0,0.0,0.0); | |
648 | // TParticle(pdg, is, parent, -1, kFirstDaughter, kLastDaughter, | |
649 | // px, py, pz, e, vx, vy, vz, tof); | |
650 | ||
e087ab36 | 651 | AliDebug(1,Form("Randomized qinv = %f, obtained = %f",qinv,GetQInv(first,second))); |
695dc56f | 652 | |
653 | } | |
654 | /***********************************************************/ | |
655 | ||
656 | Int_t AliGenHBTosl::GetThreeD(TParticle* first,TParticle* second, Double_t qout, Double_t qside, Double_t qlong) | |
657 | { | |
658 | //deprecated method that caclulates momenta of the second particle | |
659 | //out of qout qside and qlong and the first particle | |
660 | Double_t m = first->GetMass(); | |
661 | Double_t m2 = m*m; | |
662 | ||
663 | Double_t px = first->P();//first particle is rotated that only X is non-zero thus P==Px | |
664 | Double_t px2 = px*px; | |
665 | ||
666 | ||
667 | Double_t qout2 = qout*qout; | |
668 | Double_t qside2 = qside*qside; | |
669 | Double_t qlong2 = qlong*qlong; | |
670 | ||
671 | ||
672 | Double_t util1 = 4.*px2 - qside2;//4*P1x^2 - Y^2 | |
673 | if (util1 < 0) | |
674 | { | |
675 | Info("GetThreeD","4.*px2* - qside2 is negative px: %f, qside: %f",px,qside); | |
676 | return 1; | |
677 | } | |
678 | Double_t util2 = TMath::Sqrt(px2*qout2*util1); | |
679 | ||
680 | ||
681 | Double_t p2x,p2y,p2z; | |
682 | ||
683 | // if ( (qside >= 0) && (qout >= 0) && (qlong >= 0)) | |
684 | if (qout >= 0) | |
685 | { | |
686 | //p2x | |
687 | Double_t tmp = px*(2.*px2 - qside2); | |
688 | tmp -= util2; | |
689 | p2x = tmp/(2.*px2); | |
690 | ||
691 | //p2y | |
692 | tmp = qout - TMath::Sqrt(util1); | |
693 | p2y = - (tmp*qside)/(2.*px); | |
694 | ||
695 | //p2z | |
696 | tmp = 4.*m2 + 2.*qout2+qlong2; | |
697 | tmp *= px; | |
698 | tmp -= 2.*util2;//!!! | |
699 | tmp += 4.*px*px2; | |
700 | tmp *= qlong2; | |
701 | ||
702 | Double_t m2px2 = m2+px2; | |
703 | Double_t tmp2 = m2px2*tmp; | |
704 | ||
705 | tmp = 4.*(m2px2+qout2) + qlong2; | |
706 | tmp *= px; | |
707 | tmp -= 4.*util2; | |
708 | tmp *= 4.*(m2px2) + qlong2; | |
709 | tmp *= qlong2*qlong2; | |
710 | tmp *= m2px2*m2px2; | |
711 | tmp *= px; | |
712 | if (tmp < 0) | |
713 | { | |
714 | Error("","Argument of sqrt is negative"); | |
715 | return 1; | |
716 | } | |
717 | ||
718 | tmp2 += TMath::Sqrt(tmp); | |
719 | ||
720 | tmp = 8.0*px*m2px2*m2px2; | |
721 | p2z = -TMath::Sqrt(tmp2/tmp); | |
722 | if (qlong < 0) p2z = -p2z; | |
723 | } | |
724 | else | |
725 | { | |
726 | //p2x | |
727 | Double_t tmp = px*(2.*px2 - qside2); | |
728 | tmp += util2; | |
729 | p2x = tmp/(2.*px2); | |
730 | ||
731 | //p2y | |
732 | tmp = qout - TMath::Sqrt(util1); | |
733 | p2y = - (tmp*qside)/(2.*px); | |
734 | ||
735 | //p2z | |
736 | tmp = 4.*m2 + 2.*qout2+qlong2; | |
737 | tmp *= px; | |
738 | tmp += 2.*util2;//!!! | |
739 | tmp += 4.*px*px2; | |
740 | tmp *= qlong2; | |
741 | ||
742 | Double_t m2px2 = m2+px2; | |
743 | Double_t tmp2 = m2px2*tmp; | |
744 | ||
745 | tmp = 4.*(m2px2+qout2) + qlong2; | |
746 | tmp *= px; | |
747 | tmp += 4.*util2; | |
748 | tmp *= 4.*(m2px2) + qlong2; | |
749 | tmp *= qlong2*qlong2; | |
750 | tmp *= m2px2*m2px2; | |
751 | tmp *= px; | |
752 | if (tmp < 0) | |
753 | { | |
754 | Error("","Argument of sqrt is negative"); | |
755 | return 1; | |
756 | } | |
757 | ||
758 | tmp2 += TMath::Sqrt(tmp); | |
759 | ||
760 | tmp = 8.0*px*m2px2*m2px2; | |
761 | p2z = -TMath::Sqrt(tmp2/tmp); | |
762 | if (qlong < 0) p2z = -p2z; | |
763 | } | |
764 | ||
765 | // if ( (qside >= 0) && (qout >= 0) && (qlong >= 0)) p2z = -p2z; | |
766 | ||
767 | TVector3 firstpvector(first->Px(),first->Py(),first->Pz()); | |
768 | TVector3 vector(p2x,p2y,p2z); | |
769 | Rotate(firstpvector,vector); | |
770 | ||
771 | Double_t e = TMath::Sqrt(m2 + vector.X()*vector.X() + vector.Y()*vector.Y() + vector.Z()*vector.Z()); | |
772 | second->SetMomentum(vector.X(),vector.Y(),vector.Z(),e); | |
773 | ||
774 | //////////// | |
e087ab36 | 775 | if ( AliDebugLevel() > 3 ) |
695dc56f | 776 | { |
777 | e=TMath::Sqrt(m2+px*px); | |
778 | TParticle* f = new TParticle(first->GetPdgCode(),0,-1,-1,-1,-1, px , 0.0, 0.0, e,0.0,0.0,0.0,0.0); | |
779 | ||
780 | e = TMath::Sqrt(m2 + p2x*p2x + p2y*p2y + p2z*p2z); | |
781 | TParticle* s = new TParticle(first->GetPdgCode(),0,-1,-1,-1,-1, p2x, p2y, p2z, e, 0.0, 0.0, 0.0, 0.0); | |
782 | ||
783 | Double_t qo, qs, ql; | |
784 | GetQOutQSideQLong(f,s,qo, qs, ql); | |
785 | ||
786 | Info("GetThreeD","TEST"); | |
787 | f->Print(); | |
788 | s->Print(); | |
789 | Info("GetThreeD","Required %f %f %f",qout,qside,qlong); | |
790 | Info("GetThreeD","Got %f %f %f",qo,qs,ql); | |
791 | if ( qout == qo) | |
792 | if (qside == qs) | |
793 | if (qlong == ql) | |
794 | Info("GetThreeD","!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"); | |
795 | } | |
796 | ///////////// | |
797 | return 0; | |
798 | } | |
799 | /***********************************************************/ | |
800 | ||
801 | void AliGenHBTosl::StartSignal() | |
802 | { | |
803 | //Starts the signal histograms | |
5fdc214b | 804 | ofstream& logfile = *fLogFile; |
805 | logfile<<"\n\n\n\n"; | |
806 | logfile<<"************************************************"<<endl; | |
807 | logfile<<"************************************************"<<endl; | |
808 | logfile<<" StartSignal "<<endl; | |
809 | logfile<<"************************************************"<<endl; | |
810 | logfile<<"************************************************"<<endl; | |
811 | ||
695dc56f | 812 | AliStack* stack; |
813 | ||
814 | fSwapped = kFALSE; | |
815 | ||
816 | TParticle particle(fPID,0,-1,-1,-1,-1,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0); | |
817 | TParticle* second = &particle; | |
818 | ||
819 | TIter next(fStackBuffer); | |
820 | while(( stack=(AliStack*)next() )) | |
821 | { | |
822 | stack->Reset(); | |
823 | } | |
824 | ||
825 | AliStack* genstack = fGenerator->GetStack(); | |
826 | if (genstack == 0x0) | |
827 | { | |
828 | genstack = new AliStack(fNpart); | |
829 | fGenerator->SetStack(genstack); | |
830 | } | |
831 | else | |
832 | { | |
833 | genstack->Reset(); | |
834 | } | |
835 | ||
5fdc214b | 836 | StartSignalPass1(); |
837 | //We alread have detailed histograms and we do not need Coarse anymore | |
838 | delete fQCoarseSignal; | |
839 | delete fQCoarseBackground; | |
840 | fQCoarseSignal = 0x0; | |
841 | fQCoarseBackground = 0x0; | |
842 | ||
843 | ||
844 | const Double_t kNDF = fQNBins*fQNBins*fQNBins; | |
695dc56f | 845 | |
846 | TH3D* work = new TH3D("work","work",fQNBins,-fQRange,fQRange,fQNBins,-fQRange,fQRange,fQNBins,-fQRange,fQRange); | |
847 | work->Sumw2(); | |
848 | work->SetDirectory(0x0); | |
849 | ||
850 | ||
851 | Double_t binwdh = work->GetBinWidth(1)/2.; | |
852 | ||
853 | Double_t*** chiarray = new Double_t** [fQNBins+1]; | |
854 | Double_t*** sigarray = new Double_t** [fQNBins+1]; | |
855 | ||
856 | for (Int_t i = 1; i<=fQNBins; i++) | |
857 | { | |
858 | chiarray[i] = new Double_t* [fQNBins+1]; | |
859 | sigarray[i] = new Double_t* [fQNBins+1]; | |
860 | ||
861 | for (Int_t k = 1; k<=fQNBins; k++) | |
862 | { | |
863 | chiarray[i][k] = new Double_t [fQNBins+1]; | |
864 | sigarray[i][k] = new Double_t [fQNBins+1]; | |
865 | } | |
866 | } | |
867 | ||
868 | ||
869 | Float_t chisqrchange = fMaxChiSquereChange + 1.; | |
870 | Float_t chisqrPerDF = fMaxChiSquerePerNDF; | |
871 | Float_t chisqrold = 0.0; | |
872 | ||
873 | Int_t counter = 1; | |
874 | Int_t niterations = 1; | |
875 | Int_t rotaxisorder = 1;//defines order of looping over 3D histo (X,Y,Z or Y,Z,X or Z,X,Y) | |
876 | ||
877 | Bool_t flag = kTRUE; | |
878 | Bool_t shortloop = kTRUE; | |
879 | TCanvas* c1 = new TCanvas(); | |
880 | ||
695dc56f | 881 | |
882 | printf("\n"); | |
883 | Info("StartSignal","\n\n\n\nSecond Pass\n\n\n\n"); | |
884 | ||
885 | while ( ( (chisqrPerDF > fMaxChiSquereChange) || flag) && (niterations++ < fMaxIterations) ) | |
886 | { | |
887 | ||
5fdc214b | 888 | logfile<<"StartSignal\n"; |
889 | logfile<<" Row 1 Theory, 2 current value, 3 Chi2 \n"; | |
695dc56f | 890 | |
891 | Double_t chisqrnew = 0.0; | |
892 | flag = kFALSE; | |
893 | ||
894 | Double_t scale = Scale(fQSignal,fQBackground); | |
895 | work->Divide(fQSignal,fQBackground,scale); | |
896 | ||
897 | if ( (counter%100) == 0) | |
898 | { | |
899 | c1->cd(); | |
900 | char buff[50]; | |
901 | sprintf(buff,"QTWorkPass2.%3d.root",counter); | |
902 | TFile* file = TFile::Open(buff,"update"); | |
903 | work->Write(); | |
904 | work->SetDirectory(0x0); | |
905 | file->Close(); | |
906 | delete file; | |
907 | ||
908 | sprintf(buff,"QTBackgroundPass2.%3d.root",counter); | |
909 | file = TFile::Open(buff,"update"); | |
910 | fQBackground->Write(); | |
911 | fQBackground->SetDirectory(0x0); | |
912 | file->Close(); | |
913 | delete file; | |
914 | ||
915 | sprintf(buff,"QTSignalPass2.%3d.root",counter); | |
916 | file = TFile::Open(buff,"update"); | |
917 | fQSignal->Write(); | |
918 | fQSignal->SetDirectory(0x0); | |
919 | file->Close(); | |
920 | delete file; | |
921 | } | |
922 | ||
923 | counter++; | |
924 | Int_t novertresh = 0; | |
925 | for (Int_t k = 1; k<=fQNBins; k++) | |
926 | { | |
927 | Double_t z = work->GetZaxis()->GetBinCenter(k); | |
928 | for (Int_t j = 1; j<=fQNBins; j++) | |
929 | { | |
930 | Double_t y = work->GetYaxis()->GetBinCenter(j); | |
931 | for (Int_t i = 1; i<=fQNBins; i++) | |
932 | { | |
933 | Double_t x = work->GetXaxis()->GetBinCenter(i);//get center value of a bin (qout) | |
934 | sigarray[i][j][k] = fQSignal->GetBinContent(i,j,k);//store current value of signal histogram | |
935 | Double_t v = GetQOutQSideQLongCorrTheorValue(x,y,z);//get expected value of CF in that qinv | |
936 | Double_t diff = v - work->GetBinContent(i,j,k);//store difference betweeon current value, and desired value | |
937 | chiarray[i][j][k] = diff; // no-x x is a weight to get good distribution | |
938 | Double_t be = work->GetBinError(i,j,k); | |
939 | chisqrnew += diff*diff/(be*be);//add up chisq | |
940 | ||
941 | //even if algorithm is stable (chi sqr change less then threshold) | |
942 | //and any bin differs more then 5% from expected value we continue | |
943 | Double_t fact = diff; | |
944 | if (TMath::Abs(fact) > 0.1) | |
945 | { | |
946 | flag = kTRUE; | |
947 | novertresh++; | |
948 | } | |
949 | } | |
950 | } | |
951 | } | |
952 | ||
953 | ||
5fdc214b | 954 | char msg[1000]; |
695dc56f | 955 | |
5fdc214b | 956 | printf("\n"); |
957 | ||
958 | for (Int_t k = 25; k < 36; k++) | |
695dc56f | 959 | { |
5fdc214b | 960 | Double_t tx = work->GetXaxis()->GetBinCenter(30); |
961 | Double_t ty = work->GetYaxis()->GetBinCenter(30); | |
695dc56f | 962 | Double_t tz = work->GetZaxis()->GetBinCenter(k); |
5fdc214b | 963 | sprintf(msg,"% 6.5f ",GetQOutQSideQLongCorrTheorValue(tx,ty,tz)); |
964 | logfile<<msg; | |
695dc56f | 965 | } |
5fdc214b | 966 | logfile<<endl; |
695dc56f | 967 | |
5fdc214b | 968 | for (Int_t k = 25; k < 36; k++) |
695dc56f | 969 | { |
5fdc214b | 970 | sprintf(msg,"%6.5f ",work->GetBinContent(30,30,k)); |
971 | logfile<<msg; | |
695dc56f | 972 | } |
5fdc214b | 973 | logfile<<endl; |
695dc56f | 974 | |
5fdc214b | 975 | for (Int_t k = 25; k < 36; k++) |
695dc56f | 976 | { |
5fdc214b | 977 | sprintf(msg,"% 6.5f ",chiarray[30][30][k]); |
978 | logfile<<msg; | |
695dc56f | 979 | } |
5fdc214b | 980 | logfile<<endl; |
695dc56f | 981 | |
982 | chisqrchange = TMath::Abs(chisqrnew - chisqrold)/chisqrnew; | |
983 | chisqrold = chisqrnew; | |
984 | ||
5fdc214b | 985 | chisqrPerDF = chisqrnew/kNDF; |
695dc56f | 986 | |
987 | Info("StartSignal","Iteration %d Chi-sq change %f%%",niterations,chisqrchange*100.0); | |
5fdc214b | 988 | Info("StartSignal","ChiSq = %f, NDF = %f, ChiSq/NDF = %f",chisqrnew, kNDF, chisqrPerDF ); |
695dc56f | 989 | Info("StartSignal","novertresh = %d",novertresh); |
990 | ||
991 | ||
992 | stack = RotateStack(); | |
993 | genstack->Reset(); | |
994 | fGenerator->Generate(); | |
995 | Int_t ninputparticle = 0, ntr = 0; | |
996 | if ( genstack->GetNtrack() < fNpart/2) | |
997 | { | |
998 | Warning("StartSignal","**********************************"); | |
999 | Warning("StartSignal","Generator generated (%d) less particles then expected (%d).", | |
1000 | genstack->GetNtrack(),fNpart/2); | |
1001 | Warning("StartSignal","**********************************"); | |
1002 | } | |
1003 | ||
1004 | Int_t sc = 0; //security check against infinite loop | |
1005 | while ( (ntr+1) < fNpart)//ntr is number of track generated up to now | |
1006 | { | |
1007 | Int_t xmax = 1; | |
1008 | Int_t ymax = 1; | |
1009 | Int_t zmax = 1; | |
1010 | Double_t qout; | |
1011 | Double_t qside; | |
1012 | Double_t qlong; | |
1013 | ||
1014 | Int_t i,j,k; | |
1015 | ||
1016 | Int_t* cx = 0x0; | |
1017 | Int_t* cy = 0x0; | |
1018 | Int_t* cz = 0x0; | |
1019 | ||
1020 | switch (rotaxisorder) | |
1021 | { | |
1022 | case 1: | |
1023 | cx = &i; | |
1024 | cy = &j; | |
1025 | cz = &k; | |
1026 | break; | |
1027 | case 2: | |
1028 | cx = &j; | |
1029 | cy = &k; | |
1030 | cz = &i; | |
1031 | break; | |
1032 | case 3: | |
1033 | cx = &k; | |
1034 | cy = &i; | |
1035 | cz = &j; | |
1036 | break; | |
1037 | } | |
1038 | rotaxisorder++; | |
1039 | if (rotaxisorder > 3) rotaxisorder = 1; | |
1040 | Int_t nrange; | |
1041 | ||
1042 | if (shortloop) | |
1043 | { | |
1044 | shortloop = kFALSE; | |
1045 | nrange = fQNBins; | |
1046 | } | |
1047 | else | |
1048 | { | |
1049 | shortloop = kTRUE; | |
1050 | nrange = fQNBins/4; | |
1051 | } | |
1052 | ||
1053 | // Bool_t force = kFALSE; | |
1054 | for ( k = 1; k <=nrange;k++ ) | |
1055 | { | |
1056 | for ( j = 1; j<=nrange; j++) | |
1057 | { | |
1058 | for ( i = 1; i<=nrange; i++) | |
1059 | { | |
1060 | if ( (chiarray[*cx][*cy][*cz]) > (chiarray[xmax][ymax][zmax]) ) | |
1061 | { | |
1062 | xmax = *cx; | |
1063 | ymax = *cy; | |
1064 | zmax = *cz; | |
1065 | } | |
1066 | ||
1067 | // Double_t fact = chiarray[*cx][*cy][*cz];//chiarray is chi2*qinv | |
1068 | // if (fact > work->GetBinError(*cx,*cy,*cz))//if differece between what we want and | |
1069 | // { //what we have is bigger than stat. error | |
1070 | // //we force to fill that bin | |
1071 | // qout = work->GetXaxis()->GetBinCenter(*cx); | |
1072 | // qside = work->GetYaxis()->GetBinCenter(*cy); | |
1073 | // qlong = work->GetZaxis()->GetBinCenter(*cz); | |
1074 | ||
1075 | // Info("StartSignal"," bin: (%d,%d,%d) loop status (%d,%d,%d) \nUsing Force: chiarray: %f \nq(o,s,l): (%f,%f,%f) signal: %d background: %d binerror: %f", | |
1076 | // *cx,*cy,*cz,i,j,k,fact,qout,qside,qlong, | |
1077 | // (Int_t)sigarray[*cx][*cy][*cz],(Int_t)fQBackground->GetBinContent(*cx,*cy,*cz),work->GetBinError(*cx,*cy,*cz)); | |
1078 | // force = kTRUE; | |
1079 | // break; | |
1080 | // } | |
1081 | ||
1082 | } | |
1083 | // if (force) break; | |
1084 | } | |
1085 | // if (force) break; | |
1086 | } | |
1087 | ||
1088 | ||
1089 | qout = work->GetXaxis()->GetBinCenter(xmax); | |
1090 | qside = work->GetYaxis()->GetBinCenter(ymax); | |
1091 | qlong = work->GetZaxis()->GetBinCenter(zmax); | |
1092 | ||
1093 | // Info("StartSignal"," bin: (%d,%d,%d) chiarray: %f \nq(o,s,l): (%f,%f,%f) signal: %d background: %d binerror: %f", | |
1094 | // xmax,ymax,zmax,chiarray[xmax][ymax][zmax],qout,qside,qlong, | |
1095 | // (Int_t)sigarray[xmax][ymax][zmax], | |
1096 | // (Int_t)fQBackground->GetBinContent(xmax,ymax,zmax), | |
1097 | // work->GetBinError(xmax,ymax,zmax)); | |
1098 | ||
1099 | qout = gRandom->Uniform(qout-binwdh,qout+binwdh); | |
1100 | qside = gRandom->Uniform(qside-binwdh,qside+binwdh); | |
1101 | qlong = gRandom->Uniform(qlong-binwdh,qlong+binwdh); | |
1102 | ||
1103 | TParticle* first = 0; | |
1104 | while (ninputparticle < genstack->GetNtrack()) | |
1105 | { | |
1106 | TParticle* tmpp = genstack->Particle(ninputparticle++); | |
1107 | if (tmpp->GetPdgCode() == fPID) | |
1108 | { | |
1109 | if (CheckParticle(tmpp,0x0,stack) == kFALSE) | |
1110 | { | |
1111 | first = tmpp; | |
1112 | break; | |
1113 | } | |
1114 | } | |
1115 | } | |
1116 | ||
1117 | if (first == 0x0) | |
1118 | { | |
1119 | if ( fDebug > 2 ) Info("StartSignal","No more particles of that type"); | |
1120 | break; | |
1121 | } | |
1122 | ||
1123 | Int_t retval = GetThreeD(first,second,qout,qside,qlong); | |
1124 | if (retval) | |
1125 | { | |
1126 | Info("StartSignal","Can not find momenta for this OSL and particle OSL = %f %f %f",qout,qside,qlong); | |
1127 | first->Print(); | |
1128 | second->Print(); | |
1129 | ||
1130 | continue; | |
1131 | } | |
1132 | //in case this particle is falling into signal area with another | |
1133 | //particle we take a another pair | |
1134 | //it can intruduce artificial correlations | |
1135 | Bool_t checkresult = CheckParticle(second,first,stack); | |
1136 | if ( checkresult && (sc < 10) ) | |
1137 | { | |
1138 | sc++; | |
1139 | continue; | |
1140 | } | |
1141 | sc = 0; | |
1142 | ||
1143 | //Put on output stack | |
1144 | SetTrack(first,ntr,stack); | |
1145 | SetTrack(second,ntr,stack); | |
1146 | ||
1147 | Double_t y = GetQOutQSideQLongCorrTheorValue(qout,qside,qlong); | |
1148 | ||
1149 | sigarray[xmax][ymax][zmax] ++; | |
1150 | chiarray[xmax][ymax][zmax] = scale*sigarray[xmax][ymax][zmax]/fQBackground->GetBinContent(xmax,ymax,zmax); | |
1151 | chiarray[xmax][ymax][zmax] = (y - chiarray[xmax][ymax][zmax]); | |
1152 | ||
1153 | } | |
1154 | Info("StartSignal","Mixing background..."); | |
1155 | Mix(fStackBuffer,fQBackground,fQSecondBackground); //upgrate background | |
1156 | Info("StartSignal","Mixing signal..."); | |
1157 | Mix(stack,fQSignal,fQSecondSignal); //upgrate background | |
5fdc214b | 1158 | |
1159 | ||
1160 | // if ( (chisqrPerDF < 2.0) && (fSwapped == kFALSE) ) | |
1161 | // { | |
1162 | // SwapGeneratingHistograms(); | |
1163 | // } | |
695dc56f | 1164 | |
1165 | } | |
1166 | TFile* filef = TFile::Open("QTBackground.root","recreate"); | |
1167 | fQBackground->Write(); | |
1168 | fQBackground->SetDirectory(0x0); | |
1169 | filef->Close(); | |
1170 | delete filef; | |
1171 | ||
1172 | filef = TFile::Open("QTSignal.root","recreate"); | |
1173 | fQSignal->Write(); | |
1174 | fQSignal->SetDirectory(0x0); | |
1175 | filef->Close(); | |
1176 | delete filef; | |
1177 | ||
1178 | ||
1179 | delete c1; | |
1180 | delete work; | |
1181 | ||
1182 | for (Int_t i = 1; i<=fQNBins; i++) | |
1183 | { | |
1184 | for (Int_t k = 1; k<=fQNBins; k++) | |
1185 | { | |
1186 | delete [] chiarray[i][k]; | |
1187 | delete [] sigarray[i][k]; | |
1188 | } | |
1189 | delete [] chiarray[i]; | |
1190 | delete [] sigarray[i]; | |
1191 | } | |
1192 | delete [] chiarray; | |
1193 | delete [] sigarray; | |
1194 | ||
1195 | } | |
1196 | /***********************************************************/ | |
1197 | ||
1198 | void AliGenHBTosl::StartSignalPass1() | |
1199 | { | |
1200 | //This method makes first part of the initialization of working histograms | |
1201 | //It randomizes qout, qside and qlong from the coarse signal histogram | |
1202 | ||
1203 | Bool_t flag = kTRUE; | |
1204 | TParticle particle(fPID,0,-1,-1,-1,-1,0.0,0.0,0.0,0.0,0.0,0.0,0.0,0.0); | |
1205 | TParticle* second = &particle; | |
1206 | Double_t qout; | |
1207 | Double_t qside; | |
1208 | Double_t qlong; | |
1209 | ||
1210 | Info("StartSignalPass1","\n\nFirst Pass\n\n"); | |
1211 | ||
1212 | while (flag) | |
1213 | { | |
1214 | Info("StartSignalPass1","NextEvent"); | |
1215 | AliStack* stack = RotateStack(); | |
1216 | AliStack* genstack = fGenerator->GetStack(); | |
1217 | genstack->Reset(); | |
1218 | fGenerator->Generate(); | |
1219 | Int_t j = 0, ntr = 0; | |
1220 | if ( genstack->GetNtrack() < fNpart/2) | |
1221 | { | |
1222 | Warning("StartSignalPass1","**********************************"); | |
1223 | Warning("StartSignalPass1","Generator generated (%d) less particles then expected (%d).", | |
1224 | genstack->GetNtrack(),fNpart/2); | |
1225 | Warning("StartSignalPass1","**********************************"); | |
1226 | } | |
1227 | ||
1228 | Int_t sc = 0;//security check against infinite loop | |
1229 | while ((ntr+1)<fNpart) | |
1230 | { | |
1231 | ||
1232 | // Info("StartSignal","Number of track on output stack: = %d", ntr); | |
1233 | // Info("StartSignal","Number of track on input stack: = %d\n", j); | |
1234 | ||
1235 | TParticle* first = 0; | |
1236 | while (j < genstack->GetNtrack()) | |
1237 | { | |
1238 | TParticle* tmpp = genstack->Particle(j++); | |
1239 | if (tmpp->GetPdgCode() == fPID) | |
1240 | { | |
1241 | if (CheckParticle(tmpp,0x0,stack) == kFALSE) | |
1242 | { | |
1243 | first = tmpp; | |
1244 | break; | |
1245 | } | |
1246 | else | |
1247 | { | |
1248 | Info("StartSignalPass1","Particle did not pass the safety check 1"); | |
1249 | tmpp->Print(); | |
1250 | } | |
1251 | } | |
1252 | } | |
1253 | ||
1254 | if (first == 0x0) | |
1255 | { | |
1256 | if ( fDebug > 2 ) Info("StartSignalPass1","No more particles of that type"); | |
1257 | ||
1258 | break; | |
1259 | } | |
1260 | ||
1261 | SetTrack(first,ntr,stack); | |
1262 | ||
1263 | fQCoarseSignal->GetRandom3(qout,qside,qlong); | |
1264 | ||
1265 | Int_t retval = GetThreeD(first,second,qout,qside,qlong); | |
1266 | if (retval) | |
1267 | { | |
1268 | //Info("StartSignal","Can not find momenta for this OSL and particle"); | |
1269 | continue; | |
1270 | } | |
1271 | //in case this particle is falling into signal area with another | |
1272 | //particle we take a another pair | |
1273 | //it can intruduce artificial correlations | |
1274 | Bool_t checkresult = CheckParticle(second,first,stack); | |
1275 | if ( checkresult && (sc < 10) ) | |
1276 | { | |
1277 | sc++; | |
1278 | Info("StartSignalPass1","Particle did not pass the safety check 2"); | |
1279 | second->Print(); | |
1280 | continue; | |
1281 | } | |
1282 | ||
1283 | sc = 0; | |
1284 | ||
1285 | SetTrack(second,ntr,stack); | |
1286 | } | |
1287 | ||
1288 | Mix(stack,fQSignal,fQSecondSignal); | |
1289 | Mix(fStackBuffer,fQBackground,fQSecondBackground); | |
1290 | ||
1291 | flag = kFALSE; | |
1292 | ||
1293 | for (Int_t k = 1; k<=fQNBins; k++) | |
1294 | { | |
ea79897e | 1295 | for (j = 1; j<=fQNBins; j++) |
695dc56f | 1296 | { |
1297 | for (Int_t i = 1; i<=fQNBins; i++) | |
1298 | { | |
1299 | if ( (fQBackground->GetBinContent(i,j,k) < fMinFill) ) | |
1300 | { | |
1301 | //(fQSignal->GetBinContent(i,j,k) < fMinFill) || | |
1302 | Info("StartSignalPass1","bin (%d,%d,%d): signal=%f background=%f",i,j,k, | |
1303 | fQSignal->GetBinContent(i,j,k),fQBackground->GetBinContent(i,j,k)); | |
1304 | flag = kTRUE;//continue while | |
1305 | break;//breakes for not while | |
1306 | } | |
1307 | } | |
1308 | if (flag == kTRUE) break; | |
1309 | } | |
1310 | if (flag == kTRUE) break; | |
1311 | } | |
1312 | ||
1313 | }//while (flag) | |
1314 | ||
1315 | ||
1316 | } | |
1317 | /***********************************************************/ | |
1318 | ||
1319 | void AliGenHBTosl::FillCoarseSignal() | |
1320 | { | |
1321 | //Makes coarse signal by multiplying the coarse background and required function | |
1322 | Info("FillCoarseSignal","START"); | |
1323 | for (Int_t k = 1; k <=fQNBins ;k++ ) | |
1324 | { | |
1325 | Double_t z = fQCoarseBackground->GetZaxis()->GetBinCenter(k); | |
1326 | for (Int_t j = 1; j <=fQNBins; j++) | |
1327 | { | |
1328 | Double_t y = fQCoarseBackground->GetYaxis()->GetBinCenter(j); | |
1329 | for (Int_t i = 1; i <=fQNBins; i++) | |
1330 | { | |
1331 | Double_t x = fQCoarseBackground->GetXaxis()->GetBinCenter(i); | |
1332 | Double_t v = GetQOutQSideQLongCorrTheorValue(x,y,z); | |
1333 | Info("FillCoarseSignal","Bin (%d,%d,%d): osl(%f,%f,%f)=%f",i,j,k,x,y,z,v); | |
1334 | fQCoarseSignal->SetBinContent(i,j,k,v*fQCoarseBackground->GetBinContent(i,j,k)); | |
1335 | } | |
1336 | } | |
1337 | } | |
1338 | ||
e087ab36 | 1339 | //if (AliDebugLevel()) |
695dc56f | 1340 | TestCoarseSignal(); |
1341 | ||
1342 | Info("FillCoarseSignal","DONE"); | |
1343 | } | |
1344 | /***********************************************************/ | |
1345 | ||
1346 | void AliGenHBTosl::FillCoarse() | |
1347 | { | |
1348 | //creates the statistical background histogram on the base of input from | |
1349 | //fGenerator | |
1350 | Info("FillCoarse","START"); | |
1351 | ||
1352 | AliStack* stack; | |
1353 | Int_t niter = 0; | |
1354 | ||
1355 | Bool_t cont; | |
1356 | TH3D tmph("tmph","tmph",2,0,1,2,0,1,2,0,1); | |
1357 | printf("\n"); | |
1358 | ||
1359 | do | |
1360 | { | |
1361 | // if (niter > 20) break; | |
1362 | ||
5fdc214b | 1363 | cout<<niter++<<" bincont "<<fQCoarseBackground->GetBinContent(30,30,28) |
1364 | <<" "<<fQCoarseBackground->GetBinContent(30,30,29) | |
1365 | <<" "<<fQCoarseBackground->GetBinContent(30,30,30) | |
1366 | <<" "<<fQCoarseBackground->GetBinContent(30,30,31) | |
1367 | <<" "<<fQCoarseBackground->GetBinContent(30,30,32) | |
695dc56f | 1368 | <<"\n"; |
1369 | fflush(0); | |
1370 | ||
1371 | stack = RotateStack(); | |
1372 | fGenerator->SetStack(stack); | |
1373 | fGenerator->Init(); | |
1374 | fGenerator->Generate(); | |
1375 | ||
1376 | Mix(fStackBuffer,fQCoarseBackground,&tmph); | |
1377 | ||
1378 | cont = kFALSE; | |
1379 | ||
1380 | Info("FillCoarse","fMinFill = %d",fMinFill); | |
1381 | for (Int_t k = 1; k<=fQNBins; k++) | |
1382 | { | |
1383 | for (Int_t j = 1; j<=fQNBins; j++) | |
1384 | { | |
1385 | for (Int_t i = 1; i<=fQNBins; i++) | |
1386 | { | |
1387 | if ( fQCoarseBackground->GetBinContent(i,j,k) < fMinFill ) | |
1388 | { | |
1389 | cont = kTRUE; | |
1390 | Info("FillCoarse","bin (%d,%d,%d)=%f",i,j,k,fQCoarseBackground->GetBinContent(i,j,k)); | |
1391 | break; | |
1392 | } | |
1393 | ||
1394 | } | |
1395 | if (cont) break; | |
1396 | } | |
1397 | if (cont) break; | |
1398 | } | |
1399 | }while(cont); | |
1400 | ||
1401 | printf("\n"); | |
1402 | fGenerator->SetStack(0x0); | |
1403 | Info("FillCoarse","DONE"); | |
1404 | ||
1405 | } | |
1406 | /***********************************************************/ | |
1407 | ||
1408 | void AliGenHBTosl::Mix(TList* eventbuffer,TH3D* denominator,TH3D* denominator2) | |
1409 | { | |
1410 | //Fills denominators | |
1411 | //Mixes events stored in the eventbuffer and fills the background histograms | |
1412 | static TStopwatch stoper; | |
1413 | ||
1414 | if (eventbuffer == 0x0) | |
1415 | { | |
1416 | Error("Mix","Buffer List is null."); | |
1417 | return; | |
1418 | } | |
1419 | ||
1420 | if (denominator == 0x0) | |
1421 | { | |
1422 | Error("Mix","Denominator histogram is null."); | |
1423 | return; | |
1424 | } | |
1425 | ||
1426 | if (denominator2 == 0x0) | |
1427 | { | |
1428 | Error("Mix","Denominator2 histogram is null."); | |
1429 | return; | |
1430 | } | |
1431 | ||
1432 | Info("Mix","%s",denominator->GetName()); | |
1433 | stoper.Start(); | |
1434 | ||
1435 | TIter next(eventbuffer); | |
1436 | AliStack* firstevent; | |
1437 | AliStack* secondevent = 0x0; | |
1438 | ||
1439 | while(( firstevent=(AliStack*)next() )) | |
1440 | { | |
1441 | if (secondevent == 0x0) | |
1442 | { | |
1443 | secondevent = firstevent; | |
1444 | continue; | |
1445 | } | |
1446 | // Info("Mix","Mixing %#x with %#x",firstevent,secondevent); | |
1447 | for(Int_t j = 0; j < firstevent->GetNtrack(); j++ ) | |
1448 | { | |
1449 | TParticle* firstpart = firstevent->Particle(j); | |
1450 | ||
1451 | Float_t phi = firstpart->Phi(); | |
1452 | if ( (phi < fSamplePhiMin) || ( phi > fSamplePhiMax)) continue; | |
1453 | ||
1454 | // Info("Mix","Mixing %d phi %f min %f max %f",j,phi,fSamplePhiMin,fSamplePhiMax); | |
1455 | ||
1456 | for(Int_t i = 0; i < secondevent->GetNtrack(); i++ ) | |
1457 | { | |
1458 | TParticle* secondpart = secondevent->Particle(i); | |
1459 | phi = secondpart->Phi(); | |
1460 | if ( (phi < fSamplePhiMin) || ( phi > fSamplePhiMax)) continue; | |
1461 | ||
1462 | Double_t qout; | |
1463 | Double_t qside; | |
1464 | Double_t qlong; | |
1465 | GetQOutQSideQLong(firstpart,secondpart,qout,qside,qlong); | |
1466 | denominator->Fill(qout,qside,qlong); | |
1467 | denominator2->Fill(qout,qside,qlong); | |
1468 | } | |
1469 | } | |
1470 | ||
1471 | secondevent = firstevent; | |
1472 | } | |
1473 | stoper.Stop(); | |
1474 | stoper.Print(); | |
1475 | ||
1476 | } | |
1477 | /***********************************************************/ | |
1478 | ||
1479 | void AliGenHBTosl::Mix(AliStack* stack, TH3D* numerator, TH3D* numerator2) | |
1480 | { | |
1481 | //fils numerator with particles from stack | |
1482 | static TStopwatch stoper; | |
1483 | if (stack == 0x0) | |
1484 | { | |
1485 | Error("Mix","Stack is null."); | |
1486 | return; | |
1487 | } | |
1488 | ||
1489 | if ( (numerator == 0x0) || (numerator2 == 0x0) ) | |
1490 | { | |
1491 | Error("Mix","Numerator histogram is null."); | |
1492 | return; | |
1493 | } | |
1494 | ||
1495 | Info("Mix","%s",numerator->GetName()); | |
1496 | stoper.Start(); | |
1497 | ||
1498 | for(Int_t j = 0; j < stack->GetNtrack(); j++ ) | |
1499 | { | |
1500 | TParticle* firstpart = stack->Particle(j); | |
1501 | Float_t phi = firstpart->Phi(); | |
1502 | if ( (phi < fSamplePhiMin) || ( phi > fSamplePhiMax)) continue; | |
1503 | ||
1504 | for(Int_t i = j+1; i < stack->GetNtrack(); i++ ) | |
1505 | { | |
1506 | TParticle* secondpart = stack->Particle(i); | |
1507 | phi = secondpart->Phi(); | |
1508 | if ( (phi < fSamplePhiMin) || ( phi > fSamplePhiMax)) continue; | |
1509 | Double_t qout; | |
1510 | Double_t qside; | |
1511 | Double_t qlong; | |
1512 | GetQOutQSideQLong(firstpart,secondpart,qout,qside,qlong); | |
1513 | numerator->Fill(qout,qside,qlong); | |
1514 | numerator2->Fill(qout,qside,qlong); | |
1515 | } | |
1516 | } | |
1517 | stoper.Stop(); | |
1518 | stoper.Print(); | |
1519 | ||
1520 | } | |
1521 | /***********************************************************/ | |
1522 | ||
1523 | Double_t AliGenHBTosl::GetQInv(TParticle* f, TParticle* s) | |
1524 | { | |
1525 | //calculates qinv | |
1526 | // cout<<f->Px()<<" "<<s->Px()<<endl; | |
1527 | Double_t pxdiff = f->Px() - s->Px(); | |
1528 | Double_t pydiff = f->Py() - s->Py(); | |
1529 | Double_t pzdiff = f->Pz() - s->Pz(); | |
1530 | Double_t ediff = f->Energy() - s->Energy(); | |
1531 | ||
1532 | Double_t qinvl = ediff*ediff - ( pxdiff*pxdiff + pydiff*pydiff + pzdiff*pzdiff ); | |
1533 | Double_t qinv = TMath::Sqrt(TMath::Abs(qinvl)); | |
1534 | return qinv; | |
1535 | } | |
1536 | /***********************************************************/ | |
1537 | ||
1538 | void AliGenHBTosl::GetQOutQSideQLong(TParticle* f, TParticle* s,Double_t& out, Double_t& side, Double_t& lon) | |
1539 | { | |
1540 | //returns qout,qside and qlong of the pair of particles | |
1541 | out = side = lon = 10e5; | |
1542 | ||
1543 | Double_t pxsum = f->Px() + s->Px(); | |
1544 | Double_t pysum = f->Py() + s->Py(); | |
1545 | Double_t pzsum = f->Pz() + s->Pz(); | |
1546 | Double_t esum = f->Energy() + s->Energy(); | |
1547 | Double_t pxdiff = f->Px() - s->Px(); | |
1548 | Double_t pydiff = f->Py() - s->Py(); | |
1549 | Double_t pzdiff = f->Pz() - s->Pz(); | |
1550 | Double_t ediff = f->Energy() - s->Energy(); | |
1551 | Double_t kt = 0.5*TMath::Hypot(pxsum,pysum); | |
1552 | ||
1553 | Double_t k2 = pxsum*pxdiff+pysum*pydiff; | |
1554 | ||
1555 | if (kt == 0.0) | |
1556 | { | |
1557 | f->Print(); | |
1558 | s->Print(); | |
1559 | kt = 10e5; | |
1560 | } | |
1561 | else | |
1562 | { | |
1563 | out = 0.5*k2/kt; | |
1564 | side = (f->Px()*s->Py()-s->Px()*f->Py())/kt; | |
1565 | } | |
1566 | ||
1567 | Double_t beta = pzsum/esum; | |
60e55aee | 1568 | Double_t gamma = 1.0/TMath::Sqrt((1.-beta)*(1.+beta)); |
695dc56f | 1569 | |
1570 | lon = gamma * ( pzdiff - beta*ediff ); | |
1571 | ||
1572 | // out = TMath::Abs(out); | |
1573 | // side = TMath::Abs(side); | |
1574 | // lon = TMath::Abs(lon); | |
1575 | } | |
1576 | ||
1577 | /***********************************************************/ | |
1578 | ||
1579 | Double_t AliGenHBTosl::Scale(TH3D* num, TH3D* den) | |
1580 | { | |
1581 | //Calculates the factor that should be used to scale | |
1582 | //quatience of num and den to 1 at tail | |
1583 | ||
e087ab36 | 1584 | AliDebug(1,"Entered"); |
695dc56f | 1585 | if(!num) |
1586 | { | |
e087ab36 | 1587 | AliError("No numerator"); |
695dc56f | 1588 | return 0.0; |
1589 | } | |
1590 | if(!den) | |
1591 | { | |
e087ab36 | 1592 | AliError("No denominator"); |
695dc56f | 1593 | return 0.0; |
1594 | } | |
1595 | ||
1596 | if(fNBinsToScale < 1) | |
1597 | { | |
02ea70d8 | 1598 | AliError("Number of bins for scaling is smaller than 1"); |
695dc56f | 1599 | return 0.0; |
695dc56f | 1600 | } |
1601 | Int_t fNBinsToScaleX = fNBinsToScale; | |
1602 | Int_t fNBinsToScaleY = fNBinsToScale; | |
1603 | Int_t fNBinsToScaleZ = fNBinsToScale; | |
1604 | ||
1605 | Int_t nbinsX = num->GetNbinsX(); | |
1606 | if (fNBinsToScaleX > nbinsX) | |
1607 | { | |
e087ab36 | 1608 | AliError("Number of X bins for scaling is bigger thnan number of bins in histograms"); |
695dc56f | 1609 | return 0.0; |
1610 | } | |
1611 | ||
1612 | Int_t nbinsY = num->GetNbinsX(); | |
1613 | if (fNBinsToScaleY > nbinsY) | |
1614 | { | |
e087ab36 | 1615 | AliError("Number of Y bins for scaling is bigger thnan number of bins in histograms"); |
695dc56f | 1616 | return 0.0; |
1617 | } | |
1618 | ||
1619 | Int_t nbinsZ = num->GetNbinsZ(); | |
1620 | if (fNBinsToScaleZ > nbinsZ) | |
1621 | { | |
e087ab36 | 1622 | AliError("Number of Z bins for scaling is bigger thnan number of bins in histograms"); |
695dc56f | 1623 | return 0.0; |
1624 | } | |
1625 | ||
e087ab36 | 1626 | AliDebug(1,"No errors detected"); |
695dc56f | 1627 | |
1628 | Int_t offsetX = nbinsX - fNBinsToScaleX - 1; //bin that we start loop over bins in axis X | |
1629 | Int_t offsetY = nbinsY - fNBinsToScaleY - 1; //bin that we start loop over bins in axis Y | |
1630 | Int_t offsetZ = nbinsZ - fNBinsToScaleZ - 1; //bin that we start loop over bins in axis Z | |
1631 | ||
1632 | Double_t densum = 0.0; | |
1633 | Double_t numsum = 0.0; | |
1634 | ||
1635 | for (Int_t k = offsetZ; k<nbinsZ; k++) | |
1636 | for (Int_t j = offsetY; j<nbinsY; j++) | |
1637 | for (Int_t i = offsetX; i<nbinsX; i++) | |
1638 | { | |
1639 | if ( num->GetBinContent(i,j,k) > 0.0 ) | |
1640 | { | |
1641 | ||
1642 | densum += den->GetBinContent(i,j,k); | |
1643 | numsum += num->GetBinContent(i,j,k); | |
1644 | } | |
1645 | } | |
1646 | ||
e087ab36 | 1647 | AliDebug(1,Form("numsum=%f densum=%f fNBinsToScaleX=%d fNBinsToScaleY=%d fNBinsToScaleZ=%d", |
1648 | numsum,densum,fNBinsToScaleX,fNBinsToScaleY,fNBinsToScaleZ)); | |
695dc56f | 1649 | |
1650 | if (numsum == 0) return 0.0; | |
1651 | Double_t ret = densum/numsum; | |
1652 | ||
e087ab36 | 1653 | AliDebug(1,Form("returning %f",ret)); |
695dc56f | 1654 | return ret; |
1655 | ||
1656 | } | |
1657 | /***********************************************************/ | |
1658 | ||
1659 | void AliGenHBTosl::TestCoarseSignal() | |
1660 | { | |
1661 | //Tests how works filling from generated histogram shape | |
1662 | TH3D* work = new TH3D("work","work",fQNBins,-fQRange,fQRange,fQNBins,-fQRange,fQRange,fQNBins,-fQRange,fQRange); | |
1663 | ||
1664 | // for (Int_t i = 0; i < fQCoarseBackground->GetEntries() ;i++) | |
1665 | // { | |
1666 | // Double_t x,y,z; | |
1667 | // fQCoarseSignal->GetRandom3(x,y,z); | |
1668 | // work->Fill(x,y,z); | |
1669 | // } | |
1670 | ||
1671 | TCanvas* c1 = new TCanvas(); | |
1672 | c1->cd(); | |
1673 | work->Draw(); | |
1674 | c1->SaveAs("QTwork.root"); | |
1675 | TFile* file = TFile::Open("QTwork.root","update"); | |
1676 | // work->Write(); | |
1677 | work->SetDirectory(0x0); | |
1678 | file->Close(); | |
1679 | ||
1680 | fQCoarseSignal->Draw(); | |
1681 | c1->SaveAs("QTCoarseSignal.root"); | |
1682 | file = TFile::Open("QTCoarseSignal.root","update"); | |
1683 | fQCoarseSignal->Write(); | |
1684 | fQCoarseSignal->SetDirectory(0x0); | |
1685 | file->Close(); | |
1686 | ||
1687 | fQCoarseBackground->Draw(); | |
1688 | c1->SaveAs("QTCoarseBackground.root"); | |
1689 | file = TFile::Open("QTCoarseBackground.root","update"); | |
1690 | fQCoarseBackground->Write(); | |
1691 | fQCoarseBackground->SetDirectory(0x0); | |
1692 | file->Close(); | |
1693 | ||
1694 | TH1 *result = (TH1*)fQCoarseBackground->Clone("ratio"); | |
1695 | result->SetTitle("ratio"); | |
1696 | Float_t normfactor = Scale(work,fQCoarseBackground); | |
1697 | result->Divide(work,fQCoarseBackground,normfactor);//work | |
1698 | ||
1699 | ||
1700 | c1->cd(); | |
1701 | result->Draw(); | |
1702 | c1->SaveAs("QTresult.root"); | |
1703 | file = TFile::Open("QTresult.root","update"); | |
1704 | result->Write(); | |
1705 | result->SetDirectory(0x0); | |
1706 | file->Close(); | |
1707 | ||
1708 | delete work; | |
1709 | delete c1; | |
1710 | } | |
1711 | /***********************************************************/ | |
1712 | ||
5fdc214b | 1713 | void AliGenHBTosl::SetTrack(TParticle* p, Int_t& ntr) |
695dc56f | 1714 | { |
1715 | //Shortcut to PushTrack(bla,bla,bla,bla.............) | |
1716 | if (p->P() == 0.0) | |
1717 | { | |
1718 | Error("SetTrack(TParticle*,Int_t&)","Particle has zero momentum"); | |
1719 | return; | |
1720 | } | |
1721 | ||
1722 | ||
1723 | Int_t pdg = p->GetPdgCode(); | |
1724 | Double_t px = p->Px(); | |
1725 | Double_t py = p->Py(); | |
1726 | Double_t pz = p->Pz(); | |
1727 | Double_t e = p->Energy(); | |
1728 | Double_t vx = p->Vx(); | |
1729 | Double_t vy = p->Vy(); | |
1730 | Double_t vz = p->Vz(); | |
1731 | Double_t tof = p->T(); | |
1732 | ||
1733 | TVector3 pol; | |
1734 | p->GetPolarisation(pol); | |
1735 | ||
1736 | Double_t polx = pol.X(); | |
1737 | Double_t poly = pol.Y(); | |
1738 | Double_t polz = pol.Z(); | |
1739 | TMCProcess mech = AliGenCocktailAfterBurner::IntToMCProcess(p->GetUniqueID()); | |
1740 | Float_t weight = p->GetWeight(); | |
1741 | ||
1742 | AliGenerator::PushTrack(fTrackIt, -1, pdg, px, py, pz, e, vx, vy, vz, tof,polx, poly, polz, mech, ntr, weight); | |
1743 | } | |
1744 | /***********************************************************/ | |
1745 | ||
5fdc214b | 1746 | void AliGenHBTosl::SetTrack(TParticle* p, Int_t& ntr, AliStack* stack) const |
695dc56f | 1747 | { |
1748 | //Shortcut to SetTrack(bla,bla,bla,bla.............) | |
1749 | if (p->P() == 0.0) | |
1750 | { | |
1751 | Error("SetTrack(TParticle*,Int_t&,AliStack*)","Particle has zero momentum"); | |
1752 | return; | |
1753 | } | |
1754 | ||
1755 | Int_t pdg = p->GetPdgCode(); | |
1756 | Double_t px = p->Px(); | |
1757 | Double_t py = p->Py(); | |
1758 | Double_t pz = p->Pz(); | |
1759 | Double_t e = p->Energy(); | |
1760 | ||
1761 | stack->PushTrack(fTrackIt, -1, pdg, px, py, pz, e, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, kPPrimary, ntr,1,0); | |
1762 | } | |
1763 | /***********************************************************/ | |
1764 | ||
1765 | void AliGenHBTosl::Rotate(TVector3& relvector, TVector3& vector) | |
1766 | { | |
1767 | //This method rotates vector about the angeles that are needed to rotate | |
1768 | //relvector from postion (firstPx,0,0) to its actual positon | |
1769 | //In other words: To make equations easier | |
1770 | ||
1771 | static TVector3 first; | |
e087ab36 | 1772 | if (AliDebugLevel()>=1) |
695dc56f | 1773 | { |
1774 | first.SetXYZ(relvector.x(),relvector.y(),relvector.z()); | |
1775 | } | |
1776 | ||
1777 | Double_t firstPx = TMath::Sqrt( relvector.x()*relvector.x() + | |
1778 | relvector.y()*relvector.y() + | |
1779 | relvector.z()*relvector.z() ); | |
1780 | ||
1781 | Double_t rotAngleZ = -TMath::ATan2(relvector.y(),relvector.x());//calculating rot angles | |
1782 | relvector.RotateZ(rotAngleZ); | |
1783 | rotAngleZ = -rotAngleZ; | |
1784 | Double_t rotAngleY = -TMath::ATan2(relvector.z(),relvector.x()); | |
1785 | ||
1786 | vector.RotateY(rotAngleY); | |
1787 | vector.RotateZ(rotAngleZ); | |
1788 | ||
e087ab36 | 1789 | if (AliDebugLevel()>5) |
695dc56f | 1790 | { |
1791 | TVector3 test(firstPx,0.0,0.0); | |
1792 | test.RotateY(rotAngleY); | |
1793 | test.RotateZ(rotAngleZ); | |
e087ab36 | 1794 | AliInfo(Form("Rotation test: px %f %f",first.x(),test.x())); |
1795 | AliInfo(Form("Rotation test: py %f %f",first.y(),test.y())); | |
1796 | AliInfo(Form("Rotation test: pz %f %f",first.z(),test.z())); | |
695dc56f | 1797 | } |
1798 | } | |
1799 | /***********************************************************/ | |
1800 | ||
1801 | Double_t AliGenHBTosl::Rotate(Double_t x,Double_t y,Double_t z) | |
1802 | { | |
1803 | //Rotates vector to base where only x - coordinate is no-zero, and returns that | |
1804 | ||
1805 | Double_t xylength = TMath::Hypot(x,y); | |
1806 | Double_t sinphi = -y/xylength; | |
1807 | Double_t cosphi = x/xylength; | |
1808 | ||
1809 | Double_t xprime = cosphi*x - sinphi*y; | |
1810 | Double_t yprime = sinphi*x + cosphi*y; | |
1811 | ||
1812 | TVector3 v(x,y,z); | |
1813 | Double_t a1 = -TMath::ATan2(v.Y(),v.X()); | |
1814 | ||
e087ab36 | 1815 | if (AliDebugLevel()>5) |
5fdc214b | 1816 | { |
e087ab36 | 1817 | AliInfo(Form("Xpr = %f Ypr = %f",xprime,yprime)); |
1818 | AliInfo(Form("Calc sin = %f, and %f",sinphi,TMath::Sin(a1))); | |
1819 | AliInfo(Form("Calc cos = %f, and %f",cosphi,TMath::Cos(a1))); | |
5fdc214b | 1820 | } |
1821 | ||
695dc56f | 1822 | Double_t xprimezlength = TMath::Hypot(xprime,z); |
1823 | ||
1824 | Double_t sintheta = z/xprimezlength; | |
1825 | Double_t costheta = xprime/xprimezlength; | |
1826 | ||
1827 | ||
1828 | Double_t xbis = sintheta*z + costheta*(cosphi*x - sinphi*y); | |
1829 | ||
e087ab36 | 1830 | AliInfo(Form("Calculated rot %f, modulus %f",xbis,TMath::Sqrt(x*x+y*y+z*z))); |
695dc56f | 1831 | return xbis; |
1832 | } | |
1833 | /***********************************************************/ | |
1834 | ||
1835 | AliStack* AliGenHBTosl::RotateStack() | |
1836 | { | |
1837 | //swaps to next stack last goes to first and is reseted | |
1838 | ||
1839 | AliStack* stack; | |
1840 | if ( fStackBuffer->GetSize() >= fBufferSize ) | |
1841 | { | |
1842 | stack = (AliStack*)fStackBuffer->Remove(fStackBuffer->Last()); | |
1843 | } | |
1844 | else | |
1845 | { | |
1846 | stack = new AliStack(fNpart); | |
1847 | } | |
1848 | ||
1849 | fStackBuffer->AddFirst(stack); | |
1850 | stack->Reset(); | |
1851 | return stack; | |
1852 | } | |
1853 | /***********************************************************/ | |
1854 | ||
1855 | Double_t AliGenHBTosl::GetQInvCorrTheorValue(Double_t qinv) const | |
1856 | { | |
1857 | //Function (deprecated) | |
5fdc214b | 1858 | static const Double_t kFactorsqrd = 0.197*0.197;//squared conversion factor SI<->eV |
695dc56f | 1859 | |
5fdc214b | 1860 | return 1.0 + 0.5*TMath::Exp(-qinv*qinv*fQRadius*fQRadius/kFactorsqrd); |
695dc56f | 1861 | } |
1862 | /***********************************************************/ | |
1863 | ||
1864 | Double_t AliGenHBTosl::GetQOutQSideQLongCorrTheorValue(Double_t& out, Double_t& side, Double_t& lon) const | |
1865 | { | |
1866 | //Theoretical function. Wa want to get correlation of the shape of this function | |
5fdc214b | 1867 | static const Double_t kFactorsqrd = 0.197*0.197;//squared conversion factor SI<->eV |
1868 | return 1.0 + 0.7*TMath::Exp(-fQRadius*fQRadius*(out*out+side*side+lon*lon)/kFactorsqrd); | |
695dc56f | 1869 | } |
1870 | /***********************************************************/ | |
1871 | ||
1872 | Bool_t AliGenHBTosl::CheckParticle(TParticle* p, TParticle* aupair ,AliStack* stack) | |
1873 | { | |
1874 | //Checks if a given particle is falling into signal region with any other particle | |
1875 | //already existing on stack | |
02ea70d8 | 1876 | //PH return kFALSE; |
695dc56f | 1877 | |
1878 | if (fSignalRegion <=0) return kFALSE; | |
1879 | ||
1880 | for (Int_t i = 0; i < stack->GetNtrack(); i++) | |
1881 | { | |
1882 | TParticle* part = stack->Particle(i); | |
1883 | if (part == aupair) continue; | |
1884 | Double_t qout = 10e5; | |
1885 | Double_t qside= 10e5; | |
1886 | Double_t qlong= 10e5; | |
1887 | GetQOutQSideQLong(p,part,qout,qside,qlong); | |
1888 | ||
1889 | if (TMath::Abs(qout) < fSignalRegion) | |
1890 | if (TMath::Abs(qside) < fSignalRegion) | |
1891 | if (TMath::Abs(qlong) < fSignalRegion) | |
1892 | return kTRUE; | |
1893 | } | |
1894 | return kFALSE; | |
1895 | } | |
1896 | /***********************************************************/ | |
1897 | ||
1898 | void AliGenHBTosl::SwapGeneratingHistograms() | |
1899 | { | |
1900 | //Checks if it is time to swap signal and background histograms | |
1901 | //if yes it swaps them | |
1902 | Int_t threshold = fMinFill; | |
1903 | for (Int_t k = 1; k<=fQNBins; k++) | |
1904 | { | |
1905 | for (Int_t j = 1; j<=fQNBins; j++) | |
1906 | { | |
1907 | for (Int_t i = 1; i<=fQNBins; i++) | |
1908 | { | |
1909 | if ( fQSecondBackground->GetBinContent(i,j,k) < threshold) return; | |
1910 | } | |
1911 | } | |
1912 | ||
1913 | } | |
1914 | ||
1915 | ||
1916 | Info("SwapGeneratingHistograms","*******************************************"); | |
1917 | Info("SwapGeneratingHistograms","*******************************************"); | |
1918 | Info("SwapGeneratingHistograms","*******************************************"); | |
1919 | Info("SwapGeneratingHistograms","**** SWAPPING HISTOGRAMS ****"); | |
1920 | Info("SwapGeneratingHistograms","*******************************************"); | |
1921 | Info("SwapGeneratingHistograms","*******************************************"); | |
1922 | Info("SwapGeneratingHistograms","*******************************************"); | |
1923 | ||
1924 | ||
1925 | TH3D* h = fQSignal; | |
1926 | fQSignal = fQSecondSignal; | |
1927 | fQSecondSignal = h; | |
1928 | fQSecondSignal->Reset(); | |
1929 | fQSecondSignal->SetDirectory(0x0); | |
1930 | ||
1931 | h = fQBackground; | |
1932 | fQBackground = fQSecondBackground; | |
1933 | fQSecondBackground = h; | |
1934 | fQSecondBackground->Reset(); | |
1935 | fQSecondBackground->SetDirectory(0x0); | |
1936 | ||
1937 | fSwapped = kTRUE; | |
1938 | ||
1939 | } | |
1c56e311 | 1940 | |
1941 | AliGenHBTosl& AliGenHBTosl::operator=(const AliGenHBTosl& rhs) | |
1942 | { | |
1943 | // Assignment operator | |
1944 | rhs.Copy(*this); | |
1945 | return *this; | |
1946 | } | |
1947 | ||
1948 | void AliGenHBTosl::Copy(TObject&) const | |
1949 | { | |
1950 | // | |
1951 | // Copy | |
1952 | // | |
1953 | Fatal("Copy","Not implemented!\n"); | |
1954 | } | |
1955 | ||
1956 |