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