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e0331fd9 | 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 | ||
18 | #include <TROOT.h> | |
19 | #include <TChain.h> | |
20 | #include <TFile.h> | |
21 | #include <TList.h> | |
22 | #include <TMath.h> | |
23 | #include <TTree.h> | |
24 | #include <TH2F.h> | |
25 | #include <TRandom.h> | |
26 | ||
27 | #include "AliAnalysisTaskPhiCorrelations.h" | |
28 | #include "AliAnalyseLeadingTrackUE.h" | |
29 | #include "AliUEHistograms.h" | |
30 | #include "AliUEHist.h" | |
31 | ||
e0331fd9 | 32 | #include "AliAnalysisManager.h" |
33 | #include "AliAODHandler.h" | |
34 | #include "AliAODInputHandler.h" | |
35 | #include "AliAODMCParticle.h" | |
e0331fd9 | 36 | #include "AliInputEventHandler.h" |
37 | #include "AliLog.h" | |
38 | #include "AliMCEventHandler.h" | |
39 | #include "AliVParticle.h" | |
2a910c25 | 40 | #include "AliCFContainer.h" |
e0331fd9 | 41 | |
42 | #include "AliESDEvent.h" | |
43 | #include "AliESDInputHandler.h" | |
44 | #include "AliMultiplicity.h" | |
2a910c25 | 45 | #include "AliCentrality.h" |
46 | #include "AliStack.h" | |
7dd4dec4 | 47 | #include "AliAODMCHeader.h" |
1ccd8a0a | 48 | #include "AliGenCocktailEventHeader.h" |
49 | #include "AliGenEventHeader.h" | |
e0331fd9 | 50 | |
2a910c25 | 51 | #include "AliEventPoolManager.h" |
e0331fd9 | 52 | |
53 | ||
54 | //////////////////////////////////////////////////////////////////////// | |
55 | // | |
56 | // Analysis class for azimuthal correlation studies | |
57 | // Based on the UE task from Sara Vallero and Jan Fiete | |
58 | // | |
59 | // This class needs input AODs. | |
60 | // The output is a list of analysis-specific containers. | |
61 | // | |
62 | // The AOD can be either connected to the InputEventHandler | |
63 | // for a chain of AOD files | |
64 | // or | |
65 | // to the OutputEventHandler | |
66 | // for a chain of ESD files, | |
67 | // in this case the class should be in the train after the jet-finder | |
68 | // | |
69 | // Authors: | |
70 | // Jan Fiete Grosse-Oetringhaus | |
71 | // | |
72 | //////////////////////////////////////////////////////////////////////// | |
73 | ||
74 | ||
75 | ClassImp( AliAnalysisTaskPhiCorrelations ) | |
a1c31636 | 76 | ClassImp( AliDPhiBasicParticle ) |
e0331fd9 | 77 | |
78 | //____________________________________________________________________ | |
79 | AliAnalysisTaskPhiCorrelations:: AliAnalysisTaskPhiCorrelations(const char* name): | |
80 | AliAnalysisTask(name,""), | |
81 | // general configuration | |
82 | fDebug(0), | |
83 | fMode(0), | |
84 | fReduceMemoryFootprint(kFALSE), | |
eed401dc | 85 | fFillMixed(kTRUE), |
ac647b0f | 86 | fMixingTracks(50000), |
c3294f09 | 87 | fCompareCentralities(kFALSE), |
1bba939a | 88 | fTwoTrackEfficiencyStudy(kFALSE), |
d4b3dbfc | 89 | fTwoTrackEfficiencyCut(0), |
44af28f9 | 90 | fUseVtxAxis(kFALSE), |
04af8d15 | 91 | fSkipTrigger(kFALSE), |
1ccd8a0a | 92 | fInjectedSignals(kFALSE), |
e0331fd9 | 93 | // pointers to UE classes |
94 | fAnalyseUE(0x0), | |
95 | fHistos(0x0), | |
96 | fHistosMixed(0), | |
97 | fkTrackingEfficiency(0x0), | |
98 | // handlers and events | |
85bfac17 | 99 | fAOD(0x0), |
100 | fESD(0x0), | |
e0331fd9 | 101 | fArrayMC(0x0), |
102 | fInputHandler(0x0), | |
103 | fMcEvent(0x0), | |
104 | fMcHandler(0x0), | |
2a910c25 | 105 | fPoolMgr(0x0), |
e0331fd9 | 106 | // histogram settings |
107 | fListOfHistos(0x0), | |
108 | // event QA | |
109 | fnTracksVertex(1), // QA tracks pointing to principal vertex (= 3 default) | |
85bfac17 | 110 | fZVertex(7.), |
2a910c25 | 111 | fCentralityMethod("V0M"), |
e0331fd9 | 112 | // track cuts |
113 | fTrackEtaCut(0.8), | |
9da2f080 | 114 | fOnlyOneEtaSide(0), |
e0331fd9 | 115 | fPtMin(0.5), |
116 | fFilterBit(0xFF), | |
5cabd2cd | 117 | fSelectBit(AliVEvent::kMB|AliVEvent::kUserDefined), |
2a910c25 | 118 | fUseChargeHadrons(kFALSE), |
c05ff6be | 119 | fSelectCharge(0), |
7a77d480 | 120 | fTriggerSelectCharge(0), |
d38fa455 | 121 | fTriggerRestrictEta(-1), |
00b6f3c6 | 122 | fEtaOrdering(kFALSE), |
b0d56b29 | 123 | fCutConversions(kFALSE), |
124 | fCutResonances(kFALSE), | |
a26093ba | 125 | fFillOnlyStep0(kFALSE), |
126 | fSkipStep6(kFALSE), | |
5e053cad | 127 | fRejectCentralityOutliers(kFALSE), |
c05ff6be | 128 | fFillpT(kFALSE) |
e0331fd9 | 129 | { |
130 | // Default constructor | |
131 | // Define input and output slots here | |
132 | // Input slot #0 works with a TChain | |
133 | DefineInput(0, TChain::Class()); | |
134 | // Output slot #0 writes into a TList container | |
135 | DefineOutput(0, TList::Class()); | |
e0331fd9 | 136 | } |
137 | ||
138 | AliAnalysisTaskPhiCorrelations::~AliAnalysisTaskPhiCorrelations() | |
139 | { | |
140 | // destructor | |
141 | ||
142 | if (fListOfHistos && !AliAnalysisManager::GetAnalysisManager()->IsProofMode()) | |
143 | delete fListOfHistos; | |
144 | } | |
145 | ||
146 | //____________________________________________________________________ | |
147 | void AliAnalysisTaskPhiCorrelations::ConnectInputData(Option_t* /*option*/) | |
148 | { | |
149 | ||
150 | // Connect the input data | |
151 | if (fDebug > 1) AliInfo("ConnectInputData() "); | |
152 | ||
153 | // Since AODs can either be connected to the InputEventHandler | |
154 | // or to the OutputEventHandler ( the AOD is created by a previus task in the train ) | |
155 | // we need to get the pointer to the AODEvent correctly. | |
156 | ||
157 | // Delta AODs are also accepted. | |
158 | ||
159 | TObject* handler = AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler(); | |
160 | ||
85bfac17 | 161 | if( handler && handler->InheritsFrom("AliAODInputHandler") ) |
162 | { // input AOD | |
163 | fAOD = ((AliAODInputHandler*)handler)->GetEvent(); | |
164 | if (fDebug > 1) AliInfo(" ==== Tracks and Jets from AliAODInputHandler"); | |
165 | } | |
166 | else | |
167 | { //output AOD | |
168 | handler = AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler(); | |
169 | if (handler && handler->InheritsFrom("AliAODHandler") ) | |
170 | { | |
171 | fAOD = ((AliAODHandler*)handler)->GetAOD(); | |
172 | if (fDebug > 1) AliInfo(" ==== Tracks and Jets from AliAODHandler"); | |
173 | } | |
174 | else | |
175 | { // no AOD | |
176 | AliWarning("I can't get any AOD Event Handler"); | |
177 | } | |
178 | } | |
179 | ||
180 | if (handler && handler->InheritsFrom("AliESDInputHandler") ) | |
181 | { // input ESD | |
182 | // pointer received per event in ::Exec | |
183 | if (fDebug > 1) AliInfo(" ==== Tracks and Jets from AliESDInputHandler"); | |
184 | } | |
e0331fd9 | 185 | |
186 | // Initialize common pointers | |
187 | Initialize(); | |
e0331fd9 | 188 | } |
189 | ||
190 | //____________________________________________________________________ | |
191 | void AliAnalysisTaskPhiCorrelations::CreateOutputObjects() | |
192 | { | |
193 | // Create the output container | |
194 | ||
195 | if (fDebug > 1) AliInfo("CreateOutputObjects()"); | |
196 | ||
197 | // Initialize class with main algorithms, event and track selection. | |
198 | fAnalyseUE = new AliAnalyseLeadingTrackUE(); | |
2a910c25 | 199 | fAnalyseUE->SetParticleSelectionCriteria(fFilterBit, fUseChargeHadrons, fTrackEtaCut, fPtMin); |
e0331fd9 | 200 | fAnalyseUE->SetDebug(fDebug); |
85bfac17 | 201 | fAnalyseUE->DefineESDCuts(fFilterBit); |
5cabd2cd | 202 | fAnalyseUE->SetEventSelection(fSelectBit); |
e0331fd9 | 203 | |
204 | // Initialize output list of containers | |
205 | if (fListOfHistos != NULL){ | |
206 | delete fListOfHistos; | |
207 | fListOfHistos = NULL; | |
208 | } | |
209 | if (!fListOfHistos){ | |
210 | fListOfHistos = new TList(); | |
211 | fListOfHistos->SetOwner(kTRUE); | |
212 | } | |
213 | ||
214 | // Initialize class to handle histograms | |
44af28f9 | 215 | const char* histType = "4"; |
216 | if (fUseVtxAxis) | |
217 | histType = "5"; | |
218 | fHistos = new AliUEHistograms("AliUEHistogramsSame", histType); | |
219 | fHistosMixed = new AliUEHistograms("AliUEHistogramsMixed", histType); | |
e0331fd9 | 220 | |
2a910c25 | 221 | fHistos->SetSelectCharge(fSelectCharge); |
222 | fHistosMixed->SetSelectCharge(fSelectCharge); | |
223 | ||
7a77d480 | 224 | fHistos->SetSelectCharge(fTriggerSelectCharge); |
225 | fHistosMixed->SetSelectCharge(fTriggerSelectCharge); | |
226 | ||
d38fa455 | 227 | fHistos->SetTriggerRestrictEta(fTriggerRestrictEta); |
228 | fHistosMixed->SetTriggerRestrictEta(fTriggerRestrictEta); | |
229 | ||
9da2f080 | 230 | fHistos->SetOnlyOneEtaSide(fOnlyOneEtaSide); |
231 | fHistosMixed->SetOnlyOneEtaSide(fOnlyOneEtaSide); | |
232 | ||
00b6f3c6 | 233 | fHistos->SetEtaOrdering(fEtaOrdering); |
234 | fHistosMixed->SetEtaOrdering(fEtaOrdering); | |
235 | ||
b0d56b29 | 236 | fHistos->SetPairCuts(fCutConversions, fCutResonances); |
237 | fHistosMixed->SetPairCuts(fCutConversions, fCutResonances); | |
238 | ||
e0331fd9 | 239 | // add histograms to list |
240 | fListOfHistos->Add(fHistos); | |
241 | fListOfHistos->Add(fHistosMixed); | |
242 | ||
2a910c25 | 243 | fListOfHistos->Add(new TH2F("trackletsVsV0Cent", ";L1 clusters;v0 centrality", 100, -0.5, 9999.5, 101, 0, 101)); |
244 | fListOfHistos->Add(new TH2F("processIDs", ";#Delta#phi;process id", 100, -0.5 * TMath::Pi(), 1.5 * TMath::Pi(), kPNoProcess + 1, -0.5, kPNoProcess + 0.5)); | |
c066889a | 245 | fListOfHistos->Add(new TH1F("eventStat", ";;events", 4, -0.5, 3.5)); |
5614e02f | 246 | fListOfHistos->Add(new TH2F("mixedDist", ";centrality;tracks;events", 101, 0, 101, 200, 0, fMixingTracks * 1.5)); |
b0d56b29 | 247 | fListOfHistos->Add(new TH1F("pids", ";pdg;tracks", 2001, -1000.5, 1000.5)); |
e0331fd9 | 248 | |
1a32ecc0 | 249 | PostData(0,fListOfHistos); |
250 | ||
e0331fd9 | 251 | // Add task configuration to output list |
252 | AddSettingsTree(); | |
253 | ||
2a910c25 | 254 | // event mixing |
ac647b0f | 255 | Int_t trackDepth = fMixingTracks; |
d4b3dbfc | 256 | Int_t poolsize = 1000; // Maximum number of events, ignored in the present implemented of AliEventPoolManager |
c066889a | 257 | |
2a910c25 | 258 | Int_t nCentralityBins = fHistos->GetUEHist(2)->GetEventHist()->GetNBins(1); |
259 | Double_t* centralityBins = (Double_t*) fHistos->GetUEHist(2)->GetEventHist()->GetAxis(1, 0)->GetXbins()->GetArray(); | |
260 | ||
7a028750 | 261 | Int_t nZvtxBins = 7+1+7; |
262 | // bins for second buffer are shifted by 100 cm | |
263 | Double_t vertexBins[] = { -7, -5, -3, -1, 1, 3, 5, 7, 93, 95, 97, 99, 101, 103, 105, 107 }; | |
eb88bdfe | 264 | Double_t* zvtxbin = vertexBins; |
c066889a | 265 | |
eb88bdfe | 266 | if (fHistos->GetUEHist(2)->GetEventHist()->GetNVar() > 2) |
267 | { | |
268 | nZvtxBins = fHistos->GetUEHist(2)->GetEventHist()->GetNBins(2); | |
269 | zvtxbin = (Double_t*) fHistos->GetUEHist(2)->GetEventHist()->GetAxis(2, 0)->GetXbins()->GetArray(); | |
270 | } | |
85bfac17 | 271 | |
2a910c25 | 272 | fPoolMgr = new AliEventPoolManager(poolsize, trackDepth, nCentralityBins, centralityBins, nZvtxBins, zvtxbin); |
e0331fd9 | 273 | } |
274 | ||
275 | //____________________________________________________________________ | |
276 | void AliAnalysisTaskPhiCorrelations::Exec(Option_t */*option*/) | |
277 | { | |
85bfac17 | 278 | // receive ESD pointer if we are not running AOD analysis |
279 | if (!fAOD) | |
280 | { | |
281 | AliVEventHandler* handler = AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler(); | |
282 | if (handler && handler->InheritsFrom("AliESDInputHandler")) | |
283 | fESD = ((AliESDInputHandler*)handler)->GetEvent(); | |
284 | } | |
285 | ||
7dd4dec4 | 286 | if (fMode) |
287 | { | |
288 | // correction mode | |
289 | ||
290 | if (fMcHandler) | |
291 | fMcEvent = fMcHandler->MCEvent(); | |
292 | ||
293 | if (fAOD) | |
294 | { | |
295 | // array of MC particles | |
296 | fArrayMC = dynamic_cast<TClonesArray*>(fAOD->FindListObject(AliAODMCParticle::StdBranchName())); | |
297 | if (!fArrayMC) | |
298 | AliFatal("No array of MC particles found !!!"); | |
299 | } | |
300 | ||
301 | AnalyseCorrectionMode(); | |
302 | } | |
e0331fd9 | 303 | else AnalyseDataMode(); |
e0331fd9 | 304 | } |
305 | ||
306 | /******************** ANALYSIS METHODS *****************************/ | |
307 | ||
308 | //____________________________________________________________________ | |
309 | void AliAnalysisTaskPhiCorrelations::AddSettingsTree() | |
310 | { | |
311 | //Write settings to output list | |
312 | TTree *settingsTree = new TTree("UEAnalysisSettings","Analysis Settings in UE estimation"); | |
c05ff6be | 313 | settingsTree->Branch("fnTracksVertex", &fnTracksVertex,"nTracksVertex/I"); |
314 | settingsTree->Branch("fZVertex", &fZVertex,"ZVertex/D"); | |
315 | //settingsTree->Branch("fCentralityMethod", fCentralityMethod.Data(),"CentralityMethod/C"); | |
e0331fd9 | 316 | settingsTree->Branch("fTrackEtaCut", &fTrackEtaCut, "TrackEtaCut/D"); |
9da2f080 | 317 | settingsTree->Branch("fOnlyOneEtaSide", &fOnlyOneEtaSide,"OnlyOneEtaSide/I"); |
e0331fd9 | 318 | settingsTree->Branch("fPtMin", &fPtMin, "PtMin/D"); |
c05ff6be | 319 | settingsTree->Branch("fFilterBit", &fFilterBit,"FilterBit/I"); |
320 | settingsTree->Branch("fSelectBit", &fSelectBit,"EventSelectionBit/I"); | |
e0331fd9 | 321 | settingsTree->Branch("fUseChargeHadrons", &fUseChargeHadrons,"UseChHadrons/O"); |
c05ff6be | 322 | settingsTree->Branch("fSelectCharge", &fSelectCharge,"SelectCharge/I"); |
7a77d480 | 323 | settingsTree->Branch("fTriggerSelectCharge", &fTriggerSelectCharge,"TriggerSelectCharge/I"); |
b0d56b29 | 324 | settingsTree->Branch("fTriggerRestrictEta", &fTriggerRestrictEta,"TriggerRestrictEta/D"); |
00b6f3c6 | 325 | settingsTree->Branch("fEtaOrdering", &fEtaOrdering,"EtaOrdering/O"); |
b0d56b29 | 326 | settingsTree->Branch("fCutConversions", &fCutConversions,"CutConversions/O"); |
327 | settingsTree->Branch("fCutResonances", &fCutResonances,"CutResonances/O"); | |
c05ff6be | 328 | settingsTree->Branch("fFillpT", &fFillpT,"FillpT/O"); |
e0331fd9 | 329 | settingsTree->Branch("fkTrackingEfficiency", "TH1D", &fkTrackingEfficiency); |
ac647b0f | 330 | settingsTree->Branch("fMixingTracks", &fMixingTracks,"MixingTracks/I"); |
04af8d15 | 331 | settingsTree->Branch("fSkipTrigger", &fSkipTrigger,"SkipTrigger/O"); |
1ccd8a0a | 332 | settingsTree->Branch("fInjectedSignals", &fInjectedSignals,"SkipTrigger/O"); |
5e053cad | 333 | settingsTree->Branch("fRejectCentralityOutliers", &fRejectCentralityOutliers,"RejectCentralityOutliers/O"); |
04af8d15 | 334 | |
e0331fd9 | 335 | settingsTree->Fill(); |
336 | fListOfHistos->Add(settingsTree); | |
337 | } | |
338 | ||
339 | //____________________________________________________________________ | |
340 | void AliAnalysisTaskPhiCorrelations::AnalyseCorrectionMode() | |
341 | { | |
342 | // Run the analysis on MC to get the correction maps | |
343 | // | |
344 | ||
2a910c25 | 345 | if ( fDebug > 3 ) AliInfo( " Processing event in Corrections mode ..." ); |
346 | ||
347 | Double_t centrality = 0; | |
348 | ||
349 | if (fCentralityMethod.Length() > 0) | |
350 | { | |
85bfac17 | 351 | AliCentrality *centralityObj = 0; |
352 | if (fAOD) | |
353 | centralityObj = fAOD->GetHeader()->GetCentralityP(); | |
354 | else if (fESD) | |
355 | centralityObj = fESD->GetCentrality(); | |
356 | ||
2a910c25 | 357 | if (centralityObj) |
358 | { | |
359 | centrality = centralityObj->GetCentralityPercentileUnchecked(fCentralityMethod); | |
a8583211 | 360 | AliInfo(Form("Centrality is %f", centrality)); |
2a910c25 | 361 | } |
362 | else | |
363 | { | |
364 | Printf("WARNING: Centrality object is 0"); | |
365 | centrality = -1; | |
366 | } | |
367 | } | |
368 | ||
85bfac17 | 369 | // Support for ESD and AOD based analysis |
370 | AliVEvent* inputEvent = fAOD; | |
371 | if (!inputEvent) | |
372 | inputEvent = fESD; | |
d4b3dbfc | 373 | |
932155c7 | 374 | Float_t bSign = 0; |
375 | ||
d4b3dbfc | 376 | if (inputEvent) |
932155c7 | 377 | { |
d4b3dbfc | 378 | fHistos->SetRunNumber(inputEvent->GetRunNumber()); |
932155c7 | 379 | bSign = (inputEvent->GetMagneticField() > 0) ? 1 : -1; |
380 | } | |
381 | ||
85bfac17 | 382 | TObject* mc = fArrayMC; |
383 | if (!mc) | |
384 | mc = fMcEvent; | |
385 | ||
2a910c25 | 386 | // count all events |
387 | fHistos->FillEvent(centrality, -1); | |
388 | ||
389 | // Only consider MC events within the vtx-z region used also as cut on the reconstructed vertex | |
7dd4dec4 | 390 | TObject* vertexSupplier = fMcEvent; |
391 | if (fAOD) // AOD | |
392 | vertexSupplier = fAOD->FindListObject(AliAODMCHeader::StdBranchName()); | |
393 | ||
394 | if (!fAnalyseUE->VertexSelection(vertexSupplier, 0, fZVertex)) | |
2a910c25 | 395 | return; |
85bfac17 | 396 | |
7dd4dec4 | 397 | Float_t zVtx = 0; |
398 | if (fAOD) | |
399 | zVtx = ((AliAODMCHeader*) vertexSupplier)->GetVtxZ(); | |
400 | else | |
401 | zVtx = fMcEvent->GetPrimaryVertex()->GetZ(); | |
c05ff6be | 402 | Float_t weight = 1; |
403 | if (fFillpT) | |
404 | weight = -1; | |
1ccd8a0a | 405 | |
406 | // For productions with injected signals, figure out above which label to skip particles/tracks | |
407 | Int_t skipParticlesAbove = 0; | |
408 | if (fInjectedSignals) | |
409 | { | |
410 | AliGenEventHeader* eventHeader = 0; | |
411 | Int_t headers = 0; | |
412 | ||
413 | if (fMcEvent) | |
414 | { | |
415 | // ESD | |
416 | AliHeader* header = (AliHeader*) fMcEvent->Header(); | |
417 | if (!header) | |
418 | AliFatal("fInjectedSignals set but no MC header found"); | |
419 | ||
420 | AliGenCocktailEventHeader* cocktailHeader = dynamic_cast<AliGenCocktailEventHeader*> (header->GenEventHeader()); | |
421 | if (!cocktailHeader) | |
422 | { | |
423 | header->Dump(); | |
424 | AliFatal("fInjectedSignals set but no MC cocktail header found"); | |
425 | } | |
426 | ||
427 | headers = cocktailHeader->GetHeaders()->GetEntries(); | |
428 | eventHeader = dynamic_cast<AliGenEventHeader*> (cocktailHeader->GetHeaders()->First()); | |
429 | } | |
430 | else | |
431 | { | |
432 | // AOD | |
433 | AliAODMCHeader* header = (AliAODMCHeader*) fAOD->GetList()->FindObject(AliAODMCHeader::StdBranchName()); | |
434 | if (!header) | |
435 | AliFatal("fInjectedSignals set but no MC header found"); | |
436 | ||
437 | headers = header->GetNCocktailHeaders(); | |
438 | eventHeader = header->GetCocktailHeader(0); | |
439 | } | |
2a910c25 | 440 | |
1ccd8a0a | 441 | if (!eventHeader) |
442 | AliFatal("First event header not found"); | |
443 | ||
444 | skipParticlesAbove = eventHeader->NProduced(); | |
445 | AliInfo(Form("Injected signals in this event (%d headers). Keeping events of %s. Will skip particles/tracks above %d.", headers, eventHeader->ClassName(), skipParticlesAbove)); | |
446 | } | |
447 | ||
2a910c25 | 448 | // Get MC primaries |
762206c7 | 449 | TObjArray* tmpList = fAnalyseUE->GetAcceptedParticles(mc, 0, kTRUE, -1, kTRUE); |
1ccd8a0a | 450 | if (fInjectedSignals) |
451 | fAnalyseUE->RemoveInjectedSignals(tmpList, mc, skipParticlesAbove); | |
762206c7 | 452 | TObjArray* tracksMC = CloneAndReduceTrackList(tmpList); |
453 | delete tmpList; | |
2a910c25 | 454 | |
1ccd8a0a | 455 | /* |
b0d56b29 | 456 | if (fAOD) |
457 | { | |
458 | for (Int_t i=0; i<fArrayMC->GetEntriesFast(); i++) | |
459 | ((TH1F*) fListOfHistos->FindObject("pids"))->Fill(((AliAODMCParticle*) fArrayMC->At(i))->PdgCode()); | |
460 | } | |
461 | else | |
462 | { | |
463 | for (Int_t i=0; i<fMcEvent->GetNumberOfTracks(); i++) | |
464 | ((TH1F*) fListOfHistos->FindObject("pids"))->Fill(fMcEvent->GetTrack(i)->PdgCode()); | |
465 | } | |
1ccd8a0a | 466 | */ |
b0d56b29 | 467 | |
9375b5e2 | 468 | if (fFillOnlyStep0) |
469 | zVtx = 0; | |
470 | ||
2a910c25 | 471 | // (MC-true all particles) |
472 | // STEP 0 | |
c05ff6be | 473 | fHistos->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepAll, tracksMC, 0, weight); |
2a910c25 | 474 | |
7a028750 | 475 | // mixed event |
8781a433 | 476 | if (fFillMixed) |
477 | { | |
478 | AliEventPool* pool = fPoolMgr->GetEventPool(centrality, zVtx); | |
479 | //pool->PrintInfo(); | |
480 | if (pool->IsReady() || pool->NTracksInPool() > fMixingTracks / 10 || pool->GetCurrentNEvents() >= 5) | |
481 | for (Int_t jMix=0; jMix<pool->GetCurrentNEvents(); jMix++) | |
482 | fHistosMixed->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepAll, tracksMC, pool->GetEvent(jMix), 1.0 / pool->GetCurrentNEvents(), (jMix == 0)); | |
483 | pool->UpdatePool(CloneAndReduceTrackList(tracksMC)); | |
484 | } | |
7a028750 | 485 | |
04af8d15 | 486 | // Printf("trigger: %d", ((AliInputEventHandler*)fInputHandler)->IsEventSelected()); |
487 | ||
2a910c25 | 488 | // Trigger selection ************************************************ |
a26093ba | 489 | if (!fFillOnlyStep0 && (fSkipTrigger || fAnalyseUE->TriggerSelection(fInputHandler))) |
2a910c25 | 490 | { |
c32a0ca9 | 491 | // (MC-true all particles) |
492 | // STEP 1 | |
493 | if (!fReduceMemoryFootprint) | |
c05ff6be | 494 | fHistos->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepTriggered, tracksMC, 0, weight); |
c32a0ca9 | 495 | else |
496 | fHistos->FillEvent(centrality, AliUEHist::kCFStepTriggered); | |
497 | ||
872dc651 | 498 | if (!inputEvent) { |
c32a0ca9 | 499 | AliFatal("UNEXPECTED: inputEvent is 0. Trigger selection should have failed"); |
872dc651 | 500 | return; |
501 | } | |
2a910c25 | 502 | |
503 | // Vertex selection ************************************************* | |
85bfac17 | 504 | if (fAnalyseUE->VertexSelection(inputEvent, fnTracksVertex, fZVertex)) |
2a910c25 | 505 | { |
506 | // fill here for tracking efficiency | |
507 | // loop over particle species | |
508 | ||
509 | for (Int_t particleSpecies = 0; particleSpecies < 4; particleSpecies++) | |
510 | { | |
85bfac17 | 511 | TObjArray* primMCParticles = fAnalyseUE->GetAcceptedParticles(mc, 0x0, kTRUE, particleSpecies, kTRUE); |
512 | TObjArray* primRecoTracksMatched = fAnalyseUE->GetAcceptedParticles(inputEvent, mc, kTRUE, particleSpecies, kTRUE); | |
513 | TObjArray* allRecoTracksMatched = fAnalyseUE->GetAcceptedParticles(inputEvent, mc, kFALSE, particleSpecies, kTRUE); | |
1ccd8a0a | 514 | |
515 | if (fInjectedSignals) | |
516 | { | |
517 | fAnalyseUE->RemoveInjectedSignals(primMCParticles, mc, skipParticlesAbove); | |
518 | fAnalyseUE->RemoveInjectedSignals(primRecoTracksMatched, mc, skipParticlesAbove); | |
519 | fAnalyseUE->RemoveInjectedSignals(allRecoTracksMatched, mc, skipParticlesAbove); | |
520 | } | |
2a910c25 | 521 | |
b591fb9c | 522 | fHistos->FillTrackingEfficiency(primMCParticles, primRecoTracksMatched, allRecoTracksMatched, 0, particleSpecies, centrality); |
2a910c25 | 523 | |
eed401dc | 524 | // Printf("%d --> %d %d %d", particleSpecies, primMCParticles->GetEntries(), primRecoTracksMatched->GetEntries(), allRecoTracksMatched->GetEntries()); |
525 | ||
526 | delete primMCParticles; | |
2a910c25 | 527 | delete primRecoTracksMatched; |
528 | delete allRecoTracksMatched; | |
529 | } | |
b591fb9c | 530 | TObjArray* fakeParticles = fAnalyseUE->GetFakeParticles(inputEvent, mc, kFALSE, -1, kTRUE); |
531 | fHistos->FillTrackingEfficiency(0, 0, 0, (TObjArray*) fakeParticles->At(2), -1, centrality); | |
532 | fHistos->FillFakePt(fakeParticles, centrality); | |
533 | delete fakeParticles; | |
2a910c25 | 534 | |
535 | // (MC-true all particles) | |
536 | // STEP 2 | |
85bfac17 | 537 | if (!fReduceMemoryFootprint) |
c05ff6be | 538 | fHistos->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepVertex, tracksMC, 0, weight); |
c32a0ca9 | 539 | else |
540 | fHistos->FillEvent(centrality, AliUEHist::kCFStepVertex); | |
2a910c25 | 541 | |
542 | // Get MC primaries that match reconstructed track | |
85bfac17 | 543 | TObjArray* tracksRecoMatchedPrim = fAnalyseUE->GetAcceptedParticles(inputEvent, mc, kTRUE, -1, kTRUE); |
1ccd8a0a | 544 | if (fInjectedSignals) |
545 | fAnalyseUE->RemoveInjectedSignals(tracksRecoMatchedPrim, mc, skipParticlesAbove); | |
2a910c25 | 546 | |
547 | // (RECO-matched (quantities from MC particle) primary particles) | |
548 | // STEP 4 | |
c05ff6be | 549 | fHistos->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepTrackedOnlyPrim, tracksRecoMatchedPrim, 0, weight); |
2a910c25 | 550 | |
551 | // Get MC primaries + secondaries that match reconstructed track | |
85bfac17 | 552 | TObjArray* tracksRecoMatchedAll = fAnalyseUE->GetAcceptedParticles(inputEvent, mc, kFALSE, -1, kTRUE); |
1ccd8a0a | 553 | if (fInjectedSignals) |
554 | fAnalyseUE->RemoveInjectedSignals(tracksRecoMatchedAll, mc, skipParticlesAbove); | |
2a910c25 | 555 | |
556 | // (RECO-matched (quantities from MC particle) all particles) | |
557 | // STEP 5 | |
c05ff6be | 558 | fHistos->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepTracked, tracksRecoMatchedAll, 0, weight); |
2a910c25 | 559 | |
560 | // Get RECO tracks | |
85bfac17 | 561 | TObjArray* tracks = fAnalyseUE->GetAcceptedParticles(inputEvent, 0, kTRUE, -1, kTRUE); |
1ccd8a0a | 562 | if (fInjectedSignals) |
563 | fAnalyseUE->RemoveInjectedSignals(tracks, mc, skipParticlesAbove); | |
564 | ||
2a910c25 | 565 | // (RECO all tracks) |
566 | // STEP 6 | |
a26093ba | 567 | if (!fSkipStep6) |
568 | fHistos->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepReconstructed, tracks, 0, weight); | |
2a910c25 | 569 | |
932155c7 | 570 | // two track cut, STEP 8 |
571 | if (fTwoTrackEfficiencyCut > 0) | |
572 | fHistos->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepBiasStudy, tracks, 0, weight, kTRUE, kTRUE, bSign, fTwoTrackEfficiencyCut); | |
573 | ||
7a028750 | 574 | // mixed event |
a26093ba | 575 | if (fFillMixed && !fSkipStep6) |
8781a433 | 576 | { |
577 | AliEventPool* pool2 = fPoolMgr->GetEventPool(centrality, zVtx + 100); | |
578 | //pool2->PrintInfo(); | |
579 | if (pool2->IsReady() || pool2->NTracksInPool() > fMixingTracks / 10 || pool2->GetCurrentNEvents() >= 5) | |
932155c7 | 580 | for (Int_t jMix=0; jMix<pool2->GetCurrentNEvents(); jMix++) |
581 | { | |
582 | // STEP 6 | |
8781a433 | 583 | fHistosMixed->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepReconstructed, tracks, pool2->GetEvent(jMix), 1.0 / pool2->GetCurrentNEvents(), (jMix == 0)); |
932155c7 | 584 | |
585 | // two track cut, STEP 8 | |
586 | if (fTwoTrackEfficiencyCut > 0) | |
587 | fHistosMixed->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepBiasStudy, tracks, pool2->GetEvent(jMix), 1.0 / pool2->GetCurrentNEvents(), (jMix == 0), kTRUE, bSign, fTwoTrackEfficiencyCut); | |
588 | } | |
8781a433 | 589 | pool2->UpdatePool(CloneAndReduceTrackList(tracks)); |
590 | } | |
932155c7 | 591 | |
85bfac17 | 592 | if (0 && !fReduceMemoryFootprint) |
2a910c25 | 593 | { |
594 | // make list of secondaries (matched with MC) | |
595 | TObjArray* tracksRecoMatchedSecondaries = new TObjArray; | |
b0d56b29 | 596 | for (Int_t i=0; i<tracksRecoMatchedAll->GetEntriesFast(); i++) |
2a910c25 | 597 | if (((AliAODMCParticle*)tracksRecoMatchedAll->At(i))->IsPhysicalPrimary() == kFALSE) |
598 | tracksRecoMatchedSecondaries->Add(tracksRecoMatchedAll->At(i)); | |
599 | ||
600 | // Study: Use only secondaries as trigger particles and plot the correlation vs. all particles; store in step 9 | |
c05ff6be | 601 | fHistos->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepBiasStudy2, tracksRecoMatchedSecondaries, tracksRecoMatchedAll, weight); |
2a910c25 | 602 | |
603 | // Study: Use only primaries as trigger particles and plot the correlation vs. secondaries; store in step 8 | |
c05ff6be | 604 | fHistos->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepBiasStudy, tracksRecoMatchedPrim, tracksRecoMatchedSecondaries, weight); |
2a910c25 | 605 | |
606 | // plot delta phi vs process id of secondaries | |
607 | // trigger particles: primaries in 4 < pT < 10 | |
608 | // associated particles: secondaries in 1 < pT < 10 | |
609 | ||
b0d56b29 | 610 | for (Int_t i=0; i<tracksRecoMatchedPrim->GetEntriesFast(); i++) |
2a910c25 | 611 | { |
612 | AliVParticle* triggerParticle = (AliVParticle*) tracksRecoMatchedPrim->At(i); | |
613 | ||
614 | if (triggerParticle->Pt() < 4 || triggerParticle->Pt() > 10) | |
615 | continue; | |
616 | ||
b0d56b29 | 617 | for (Int_t j=0; j<tracksRecoMatchedSecondaries->GetEntriesFast(); j++) |
2a910c25 | 618 | { |
619 | AliAODMCParticle* particle = (AliAODMCParticle*) tracksRecoMatchedSecondaries->At(j); | |
620 | ||
621 | if (particle->Pt() < 1 || particle->Pt() > 10) | |
622 | continue; | |
623 | ||
624 | if (particle->Pt() > triggerParticle->Pt()) | |
625 | continue; | |
626 | ||
627 | Double_t deltaPhi = triggerParticle->Phi() - particle->Phi(); | |
628 | if (deltaPhi > 1.5 * TMath::Pi()) | |
629 | deltaPhi -= TMath::TwoPi(); | |
630 | if (deltaPhi < -0.5 * TMath::Pi()) | |
631 | deltaPhi += TMath::TwoPi(); | |
632 | ||
633 | Int_t processID = fMcEvent->Stack()->Particle(particle->GetLabel())->GetUniqueID(); | |
634 | ||
635 | ((TH2F*) fListOfHistos->FindObject("processIDs"))->Fill(deltaPhi, processID); | |
636 | } | |
637 | } | |
638 | ||
639 | delete tracksRecoMatchedSecondaries; | |
640 | } | |
641 | ||
642 | delete tracksRecoMatchedPrim; | |
643 | delete tracksRecoMatchedAll; | |
644 | delete tracks; | |
645 | } | |
646 | } | |
647 | ||
648 | delete tracksMC; | |
e0331fd9 | 649 | } |
650 | ||
651 | //____________________________________________________________________ | |
652 | void AliAnalysisTaskPhiCorrelations::AnalyseDataMode() | |
653 | { | |
654 | ||
655 | // Run the analysis on DATA or MC to get raw distributions | |
656 | ||
e0331fd9 | 657 | if ( fDebug > 3 ) AliInfo( " Processing event in Data mode ..." ); |
e0331fd9 | 658 | |
c066889a | 659 | ((TH1F*) fListOfHistos->FindObject("eventStat"))->Fill(0); |
660 | ||
2a910c25 | 661 | if (!fInputHandler) |
662 | return; | |
663 | ||
5e053cad | 664 | // skip not selected events here (the AOD is not updated for those) |
66021b11 | 665 | if (!(fInputHandler->IsEventSelected() & fSelectBit)) |
2a910c25 | 666 | return; |
e0331fd9 | 667 | |
2a910c25 | 668 | Double_t centrality = 0; |
669 | ||
c3294f09 | 670 | AliCentrality *centralityObj = 0; |
2a910c25 | 671 | if (fCentralityMethod.Length() > 0) |
672 | { | |
85bfac17 | 673 | if (fAOD) |
674 | centralityObj = fAOD->GetHeader()->GetCentralityP(); | |
675 | else if (fESD) | |
676 | centralityObj = fESD->GetCentrality(); | |
677 | ||
2a910c25 | 678 | if (centralityObj) |
679 | centrality = centralityObj->GetCentralityPercentile(fCentralityMethod); | |
680 | //centrality = centralityObj->GetCentralityPercentileUnchecked(fCentralityMethod); | |
681 | else | |
682 | centrality = -1; | |
a6d82f4e | 683 | |
684 | if (fAOD) | |
685 | { | |
686 | // remove outliers | |
687 | if (centrality == 0) | |
688 | { | |
689 | if (fAOD->GetVZEROData()) | |
690 | { | |
691 | Float_t multV0 = 0; | |
692 | for (Int_t i=0; i<64; i++) | |
693 | multV0 += fAOD->GetVZEROData()->GetMultiplicity(i); | |
694 | if (multV0 < 19500) | |
695 | { | |
696 | centrality = -1; | |
697 | AliInfo("Rejecting event due to too small V0 multiplicity"); | |
698 | } | |
699 | } | |
700 | } | |
701 | } | |
702 | ||
a8583211 | 703 | AliInfo(Form("Centrality is %f", centrality)); |
2a910c25 | 704 | } |
705 | ||
85bfac17 | 706 | // Support for ESD and AOD based analysis |
707 | AliVEvent* inputEvent = fAOD; | |
708 | if (!inputEvent) | |
709 | inputEvent = fESD; | |
710 | ||
04af8d15 | 711 | Float_t bSign = (inputEvent->GetMagneticField() > 0) ? 1 : -1; |
712 | ||
85bfac17 | 713 | fHistos->SetRunNumber(inputEvent->GetRunNumber()); |
714 | ||
2a910c25 | 715 | // Fill the "event-counting-container", it is needed to get the number of events remaining after each event-selection cut |
716 | fHistos->FillEvent(centrality, AliUEHist::kCFStepAll); | |
717 | ||
e0331fd9 | 718 | // Trigger selection ************************************************ |
719 | if (!fAnalyseUE->TriggerSelection(fInputHandler)) return; | |
720 | ||
721 | // Fill the "event-counting-container", it is needed to get the number of events remaining after each event-selection cut | |
2a910c25 | 722 | fHistos->FillEvent(centrality, AliUEHist::kCFStepTriggered); |
e0331fd9 | 723 | |
724 | // Vertex selection ************************************************* | |
85bfac17 | 725 | if(!fAnalyseUE->VertexSelection(inputEvent, fnTracksVertex, fZVertex)) return; |
e0331fd9 | 726 | |
727 | // Fill the "event-counting-container", it is needed to get the number of events remaining after each event-selection cut | |
2a910c25 | 728 | fHistos->FillEvent(centrality, AliUEHist::kCFStepVertex); |
e0331fd9 | 729 | |
c3294f09 | 730 | // optimization |
731 | if (centrality < 0 && !fCompareCentralities) | |
2a910c25 | 732 | return; |
e0331fd9 | 733 | |
85bfac17 | 734 | TObjArray* tracks = fAnalyseUE->GetAcceptedParticles(inputEvent, 0, kTRUE, -1, kTRUE); |
5e053cad | 735 | |
736 | // check for outlier in centrality vs number of tracks (rough constants extracted from correlation histgram) | |
737 | Bool_t reject = kFALSE; | |
738 | if (fRejectCentralityOutliers) | |
739 | { | |
740 | if (centrality > 40 && centrality <= 50 && tracks->GetEntriesFast() > 1160) | |
741 | reject = kTRUE; | |
742 | if (centrality > 50 && centrality <= 60 && tracks->GetEntriesFast() > 650) | |
743 | reject = kTRUE; | |
744 | if (centrality > 60 && centrality <= 70 && tracks->GetEntriesFast() > 370) | |
745 | reject = kTRUE; | |
746 | if (centrality > 70 && centrality <= 80 && tracks->GetEntriesFast() > 220) | |
747 | reject = kTRUE; | |
748 | if (centrality > 80 && centrality <= 90 && tracks->GetEntriesFast() > 130) | |
749 | reject = kTRUE; | |
750 | if (centrality > 90 && tracks->GetEntriesFast() > 75) | |
751 | reject = kTRUE; | |
752 | } | |
753 | ||
754 | if (reject) | |
755 | { | |
756 | AliInfo(Form("Rejecting event due to centrality vs tracks correlation: %f %d", centrality, tracks->GetEntriesFast())); | |
757 | fHistos->FillEvent(centrality, AliUEHist::kCFStepAnaTopology); | |
758 | delete tracks; | |
759 | return; | |
760 | } | |
761 | ||
762 | ||
04af8d15 | 763 | // create a list of reduced objects. This speeds up processing and reduces memory consumption for the event pool |
764 | TObjArray* tracksClone = CloneAndReduceTrackList(tracks); | |
765 | delete tracks; | |
766 | ||
2a910c25 | 767 | //Printf("Accepted %d tracks", tracks->GetEntries()); |
e0331fd9 | 768 | |
85bfac17 | 769 | const AliVVertex* vertex = inputEvent->GetPrimaryVertex(); |
2a910c25 | 770 | Double_t zVtx = vertex->GetZ(); |
771 | ||
c05ff6be | 772 | Float_t weight = 1; |
773 | if (fFillpT) | |
774 | weight = -1; | |
775 | ||
c3294f09 | 776 | // fill two different centralities (syst study) |
777 | // the zvtx axis is used to distinguish the results of both centralities: configured centrality in zvtx = 0, SPD in zvtx = 2 | |
778 | if (fCompareCentralities) | |
779 | zVtx = 0; | |
2a910c25 | 780 | |
c3294f09 | 781 | // Fill containers at STEP 6 (reconstructed) |
782 | if (centrality >= 0) | |
c066889a | 783 | { |
a26093ba | 784 | if (!fSkipStep6) |
785 | fHistos->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepReconstructed, tracksClone, 0, weight); | |
786 | ||
c066889a | 787 | ((TH1F*) fListOfHistos->FindObject("eventStat"))->Fill(1); |
04af8d15 | 788 | |
d4b3dbfc | 789 | if (fTwoTrackEfficiencyCut > 0) |
790 | fHistos->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepBiasStudy, tracksClone, 0, weight, kTRUE, kTRUE, bSign, fTwoTrackEfficiencyCut); | |
c066889a | 791 | } |
c3294f09 | 792 | |
793 | // fill second time with SPD centrality | |
794 | if (fCompareCentralities && centralityObj) | |
795 | { | |
796 | centrality = centralityObj->GetCentralityPercentile("CL1"); | |
a26093ba | 797 | if (centrality >= 0 && !fSkipStep6) |
04af8d15 | 798 | fHistos->FillCorrelations(centrality, 2, AliUEHist::kCFStepReconstructed, tracksClone, 0, weight); |
c3294f09 | 799 | } |
7fd35fdd | 800 | |
eed401dc | 801 | if (fFillMixed) |
e0331fd9 | 802 | { |
eed401dc | 803 | // event mixing |
2a910c25 | 804 | |
eed401dc | 805 | // 1. First get an event pool corresponding in mult (cent) and |
806 | // zvertex to the current event. Once initialized, the pool | |
807 | // should contain nMix (reduced) events. This routine does not | |
808 | // pre-scan the chain. The first several events of every chain | |
809 | // will be skipped until the needed pools are filled to the | |
810 | // specified depth. If the pool categories are not too rare, this | |
811 | // should not be a problem. If they are rare, you could lose | |
812 | // statistics. | |
813 | ||
814 | // 2. Collect the whole pool's content of tracks into one TObjArray | |
815 | // (bgTracks), which is effectively a single background super-event. | |
816 | ||
817 | // 3. The reduced and bgTracks arrays must both be passed into | |
818 | // FillCorrelations(). Also nMix should be passed in, so a weight | |
819 | // of 1./nMix can be applied. | |
820 | ||
821 | AliEventPool* pool = fPoolMgr->GetEventPool(centrality, zVtx); | |
822 | ||
823 | if (!pool) | |
824 | AliFatal(Form("No pool found for centrality = %f, zVtx = %f", centrality, zVtx)); | |
825 | ||
826 | //pool->SetDebug(1); | |
2d7827bf | 827 | |
828 | if (pool->IsReady() || pool->NTracksInPool() > fMixingTracks / 10 || pool->GetCurrentNEvents() >= 5) | |
eed401dc | 829 | { |
830 | ||
831 | Int_t nMix = pool->GetCurrentNEvents(); | |
a1c31636 | 832 | // cout << "nMix = " << nMix << " tracks in pool = " << pool->NTracksInPool() << endl; |
c066889a | 833 | |
834 | ((TH1F*) fListOfHistos->FindObject("eventStat"))->Fill(2); | |
5614e02f | 835 | ((TH2F*) fListOfHistos->FindObject("mixedDist"))->Fill(centrality, pool->NTracksInPool()); |
c066889a | 836 | if (pool->IsReady()) |
837 | ((TH1F*) fListOfHistos->FindObject("eventStat"))->Fill(3); | |
eed401dc | 838 | |
839 | // Fill mixed-event histos here | |
c05ff6be | 840 | for (Int_t jMix=0; jMix<nMix; jMix++) |
841 | { | |
eed401dc | 842 | TObjArray* bgTracks = pool->GetEvent(jMix); |
c5c840c5 | 843 | |
a26093ba | 844 | if (!fSkipStep6) |
845 | fHistosMixed->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepReconstructed, tracksClone, bgTracks, 1.0 / nMix, (jMix == 0)); | |
c5c840c5 | 846 | |
d4b3dbfc | 847 | if (fTwoTrackEfficiencyCut > 0) |
848 | fHistosMixed->FillCorrelations(centrality, zVtx, AliUEHist::kCFStepBiasStudy, tracksClone, bgTracks, 1.0 / nMix, (jMix == 0), kTRUE, bSign, fTwoTrackEfficiencyCut); | |
eed401dc | 849 | } |
e0331fd9 | 850 | } |
eed401dc | 851 | |
04af8d15 | 852 | // ownership is with the pool now |
eed401dc | 853 | pool->UpdatePool(tracksClone); |
854 | //pool->PrintInfo(); | |
e0331fd9 | 855 | } |
04af8d15 | 856 | else |
857 | delete tracksClone; | |
e0331fd9 | 858 | } |
859 | ||
7a028750 | 860 | TObjArray* AliAnalysisTaskPhiCorrelations::CloneAndReduceTrackList(TObjArray* tracks) |
861 | { | |
862 | // clones a track list by using AliDPhiBasicParticle which uses much less memory (used for event mixing) | |
863 | ||
864 | TObjArray* tracksClone = new TObjArray; | |
865 | tracksClone->SetOwner(kTRUE); | |
866 | ||
b0d56b29 | 867 | for (Int_t i=0; i<tracks->GetEntriesFast(); i++) |
7a028750 | 868 | { |
869 | AliVParticle* particle = (AliVParticle*) tracks->At(i); | |
870 | tracksClone->Add(new AliDPhiBasicParticle(particle->Eta(), particle->Phi(), particle->Pt(), particle->Charge())); | |
871 | } | |
872 | ||
873 | return tracksClone; | |
874 | } | |
875 | ||
e0331fd9 | 876 | //____________________________________________________________________ |
877 | void AliAnalysisTaskPhiCorrelations::Initialize() | |
878 | { | |
879 | // input handler | |
880 | fInputHandler = (AliInputEventHandler*) | |
881 | ((AliAnalysisManager::GetAnalysisManager())->GetInputEventHandler()); | |
882 | // MC handler | |
883 | fMcHandler = dynamic_cast<AliMCEventHandler*> (AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler()); | |
884 | } |