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fc98fbb5 | 1 | /**************************************************************************\r |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *\r | |
3 | * *\r | |
4 | * Author: The ALICE Off-line Project. *\r | |
5 | * Contributors are mentioned in the code where appropriate. *\r | |
6 | * *\r | |
7 | * Permission to use, copy, modify and distribute this software and its *\r | |
8 | * documentation strictly for non-commercial purposes is hereby granted *\r | |
9 | * without fee, provided that the above copyright notice appears in all *\r | |
10 | * copies and that both the copyright notice and this permission notice *\r | |
11 | * appear in the supporting documentation. The authors make no claims *\r | |
12 | * about the suitability of this software for any purpose. It is *\r | |
13 | * provided "as is" without express or implied warranty. *\r | |
14 | **************************************************************************/\r | |
15 | //------------------------------------------------------------------------------\r | |
16 | // AliPtResolAnalysisPbPb class. \r | |
17 | // \r | |
18 | // a. functionality:\r | |
19 | // - fills analysis control histograms\r | |
20 | //\r | |
21 | // b. data members:\r | |
22 | // - control histograms\r | |
23 | //\r | |
24 | // Author: J.Otwinowski 04/11/2008 \r | |
25 | //------------------------------------------------------------------------------\r | |
26 | \r | |
27 | #include "TH1.h"\r | |
28 | #include "TH2.h"\r | |
29 | #include "TCanvas.h"\r | |
30 | #include "THnSparse.h"\r | |
31 | \r | |
32 | #include "AliHeader.h" \r | |
33 | #include "AliInputEventHandler.h" \r | |
34 | #include "AliAnalysisManager.h" \r | |
35 | #include "AliGenEventHeader.h" \r | |
36 | #include "AliStack.h" \r | |
37 | #include "AliESDEvent.h" \r | |
38 | #include "AliMCEvent.h" \r | |
39 | #include "AliESDtrackCuts.h" \r | |
40 | #include "AliLog.h" \r | |
41 | #include "AliMultiplicity.h"\r | |
42 | #include "AliTracker.h"\r | |
43 | #include "AliCentrality.h"\r | |
44 | \r | |
45 | #include "AlidNdPtEventCuts.h"\r | |
46 | #include "AlidNdPtAcceptanceCuts.h"\r | |
47 | #include "AliPhysicsSelection.h"\r | |
48 | #include "AliTriggerAnalysis.h"\r | |
49 | \r | |
50 | #include "AliPWG0Helper.h"\r | |
51 | #include "AlidNdPtHelper.h"\r | |
52 | #include "AliPtResolAnalysisPbPb.h"\r | |
53 | \r | |
54 | \r | |
55 | using namespace std;\r | |
56 | \r | |
57 | ClassImp(AliPtResolAnalysisPbPb)\r | |
58 | \r | |
59 | //_____________________________________________________________________________\r | |
60 | AliPtResolAnalysisPbPb::AliPtResolAnalysisPbPb(): AlidNdPt(),\r | |
61 | fAnalysisFolder(0),\r | |
62 | fTrackParamHist(0),\r | |
98af3b87 | 63 | fTrackParamHist2(0),\r |
fc98fbb5 | 64 | fCentralityEstimator(0)\r |
65 | {\r | |
66 | // default constructor\r | |
67 | Init();\r | |
68 | }\r | |
69 | \r | |
70 | //_____________________________________________________________________________\r | |
71 | AliPtResolAnalysisPbPb::AliPtResolAnalysisPbPb(Char_t* name, Char_t* title): AlidNdPt(name,title),\r | |
72 | fAnalysisFolder(0),\r | |
73 | fTrackParamHist(0),\r | |
98af3b87 | 74 | fTrackParamHist2(0),\r |
fc98fbb5 | 75 | fCentralityEstimator(0)\r |
76 | {\r | |
77 | Init();\r | |
78 | }\r | |
79 | \r | |
80 | //_____________________________________________________________________________\r | |
81 | AliPtResolAnalysisPbPb::~AliPtResolAnalysisPbPb() {\r | |
82 | //\r | |
83 | // destructor\r | |
84 | //\r | |
85 | if(fAnalysisFolder) delete fAnalysisFolder; fAnalysisFolder=0;\r | |
86 | if(fTrackParamHist) delete fTrackParamHist; fTrackParamHist=0;\r | |
98af3b87 | 87 | if(fTrackParamHist2) delete fTrackParamHist2; fTrackParamHist2=0;\r |
fc98fbb5 | 88 | }\r |
89 | \r | |
90 | //_____________________________________________________________________________\r | |
91 | void AliPtResolAnalysisPbPb::Init(){\r | |
92 | //\r | |
93 | // Generic histograms to be corrected\r | |
94 | //\r | |
95 | //1/pT:#sigma(1/pT):centrality\r | |
96 | Int_t binsTrackParamHist[3]={400,300,11};\r | |
97 | Double_t minTrackParamHist[3]={0,0,0}; \r | |
98 | Double_t maxTrackParamHist[3]={1,0.015,100};\r | |
99 | \r | |
100 | Double_t centrBins[12] = {0.0,5.,10.,20.,30.,40.,50.,60.,70.,80.,90.,100}; \r | |
101 | \r | |
102 | \r | |
103 | fTrackParamHist = new THnSparseF("fTrackParamHist","1/pT:#sigma(1/pT):centrality",3,binsTrackParamHist,minTrackParamHist,maxTrackParamHist);\r | |
104 | fTrackParamHist->SetBinEdges(2,centrBins);\r | |
105 | fTrackParamHist->GetAxis(0)->SetTitle("1/pT (GeV/c)^{-1}");\r | |
98af3b87 | 106 | fTrackParamHist->GetAxis(1)->SetTitle("#sigma(1/pT)");\r |
107 | fTrackParamHist->GetAxis(2)->SetTitle("centrality");\r | |
fc98fbb5 | 108 | fTrackParamHist->Sumw2();\r |
109 | \r | |
98af3b87 | 110 | //pt:sigma(1/pT)*pT:centrality\r |
111 | const Int_t ptNbins = 73;\r | |
112 | Double_t bins[74] = {0.0, 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9, 0.95, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.2, 2.4, 2.6, 2.8, 3.0, 3.2, 3.4, 3.6, 3.8, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0, 18.0, 20.0, 22.0, 24.0, 26.0, 28.0, 30.0, 32.0, 34.0, 36.0, 40.0, 45.0, 50.0, 60.0, 70.0, 80.0, 90.0, 100.0 };\r | |
113 | \r | |
114 | Int_t binsTrackParamHist2[3]={ptNbins,200,11};\r | |
115 | Double_t minTrackParamHist2[3]={0,0,0}; \r | |
116 | Double_t maxTrackParamHist2[3]={100,0.2,100};\r | |
117 | \r | |
118 | fTrackParamHist2 = new THnSparseF("fTrackParamHist2","pT:#sigma(1/pT)*pT:centrality",3,binsTrackParamHist2,minTrackParamHist2,maxTrackParamHist2);\r | |
119 | fTrackParamHist2->SetBinEdges(0,bins);\r | |
120 | fTrackParamHist2->GetAxis(0)->SetTitle("pT (GeV/c)");\r | |
121 | fTrackParamHist2->GetAxis(1)->SetTitle("#sigma(1/pT)*pT");\r | |
122 | fTrackParamHist2->GetAxis(2)->SetTitle("centrality");\r | |
123 | fTrackParamHist2->Sumw2();\r | |
124 | \r | |
fc98fbb5 | 125 | // init folder\r |
126 | fAnalysisFolder = CreateFolder("folderdNdPt","Analysis dNdPt Folder");\r | |
127 | \r | |
128 | }\r | |
129 | \r | |
130 | //_____________________________________________________________________________\r | |
131 | void AliPtResolAnalysisPbPb::Process(AliESDEvent *const esdEvent, AliMCEvent *const mcEvent)\r | |
132 | {\r | |
133 | //\r | |
134 | // Process real and/or simulated events\r | |
135 | //\r | |
136 | if(!esdEvent) {\r | |
137 | AliDebug(AliLog::kError, "esdEvent not available");\r | |
138 | return;\r | |
139 | }\r | |
140 | \r | |
141 | // get selection cuts\r | |
142 | AlidNdPtEventCuts *evtCuts = GetEventCuts(); \r | |
143 | AlidNdPtAcceptanceCuts *accCuts = GetAcceptanceCuts(); \r | |
144 | AliESDtrackCuts *esdTrackCuts = GetTrackCuts(); \r | |
145 | \r | |
146 | if(!evtCuts || !accCuts || !esdTrackCuts) {\r | |
147 | AliDebug(AliLog::kError, "cuts not available");\r | |
148 | return;\r | |
149 | }\r | |
150 | \r | |
151 | // trigger selection\r | |
152 | Bool_t isEventTriggered = kTRUE;\r | |
153 | AliPhysicsSelection *physicsSelection = NULL;\r | |
154 | AliTriggerAnalysis* triggerAnalysis = NULL;\r | |
155 | \r | |
156 | // \r | |
157 | AliInputEventHandler* inputHandler = (AliInputEventHandler*) AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler();\r | |
158 | if (!inputHandler)\r | |
159 | {\r | |
160 | Printf("ERROR: Could not receive input handler");\r | |
161 | return;\r | |
162 | }\r | |
163 | \r | |
164 | if(evtCuts->IsTriggerRequired()) \r | |
165 | {\r | |
166 | // always MB\r | |
167 | isEventTriggered = inputHandler->IsEventSelected() & AliVEvent::kMB;\r | |
168 | \r | |
169 | physicsSelection = static_cast<AliPhysicsSelection*> (inputHandler->GetEventSelection());\r | |
170 | if(!physicsSelection) return;\r | |
171 | //SetPhysicsTriggerSelection(physicsSelection);\r | |
172 | \r | |
173 | if (isEventTriggered && (GetTrigger() == AliTriggerAnalysis::kV0AND)) {\r | |
174 | // set trigger (V0AND)\r | |
175 | triggerAnalysis = physicsSelection->GetTriggerAnalysis();\r | |
176 | if(!triggerAnalysis) return;\r | |
177 | isEventTriggered = triggerAnalysis->IsOfflineTriggerFired(esdEvent, GetTrigger());\r | |
178 | }\r | |
179 | \r | |
180 | \r | |
181 | // centrality determination\r | |
182 | Float_t centralityF = -1.;\r | |
183 | AliCentrality *esdCentrality = esdEvent->GetCentrality();\r | |
184 | centralityF = esdCentrality->GetCentralityPercentile(fCentralityEstimator.Data());\r | |
185 | \r | |
186 | // get reconstructed vertex \r | |
187 | const AliESDVertex* vtxESD = 0; \r | |
188 | Bool_t isRecVertex = kFALSE;\r | |
189 | if(evtCuts->IsRecVertexRequired()) \r | |
190 | {\r | |
191 | Bool_t bRedoTPCVertex = evtCuts->IsRedoTPCVertex();\r | |
192 | Bool_t bUseConstraints = evtCuts->IsUseBeamSpotConstraint();\r | |
193 | vtxESD = AlidNdPtHelper::GetVertex(esdEvent,evtCuts,accCuts,esdTrackCuts,GetAnalysisMode(),kFALSE,bRedoTPCVertex,bUseConstraints); \r | |
194 | isRecVertex = AlidNdPtHelper::TestRecVertex(vtxESD, esdEvent->GetPrimaryVertexSPD(), GetAnalysisMode(), kFALSE);\r | |
195 | }\r | |
196 | \r | |
197 | Bool_t isEventOK = evtCuts->AcceptEvent(esdEvent,mcEvent,vtxESD) && isRecVertex; \r | |
198 | //printf("isEventOK %d, isEventTriggered %d \n",isEventOK, isEventTriggered);\r | |
199 | //printf("GetAnalysisMode() %d \n",GetAnalysisMode());\r | |
200 | \r | |
201 | //\r | |
202 | TObjArray *allChargedTracks=0;\r | |
203 | // check event cuts\r | |
204 | if(isEventOK && isEventTriggered)\r | |
205 | {\r | |
206 | // get all charged tracks\r | |
207 | allChargedTracks = AlidNdPtHelper::GetAllChargedTracks(esdEvent,GetAnalysisMode());\r | |
208 | if(!allChargedTracks) return;\r | |
209 | \r | |
210 | Int_t entries = allChargedTracks->GetEntries();\r | |
211 | //printf("entries %d \n",entries);\r | |
212 | \r | |
213 | // fill histograms\r | |
214 | for(Int_t i=0; i<entries;++i) \r | |
215 | {\r | |
216 | AliESDtrack *track = (AliESDtrack*)allChargedTracks->At(i);\r | |
217 | if(!track) continue;\r | |
218 | if(track->Charge()==0) continue;\r | |
219 | \r | |
220 | // only postive charged \r | |
221 | if(GetParticleMode() == AlidNdPtHelper::kPlus && track->Charge() < 0) \r | |
222 | continue;\r | |
223 | \r | |
224 | // only negative charged \r | |
225 | if(GetParticleMode() == AlidNdPtHelper::kMinus && track->Charge() > 0) \r | |
226 | continue;\r | |
227 | \r | |
228 | if(esdTrackCuts->AcceptTrack(track)) \r | |
229 | {\r | |
230 | if(accCuts->AcceptTrack(track)) \r | |
231 | {\r | |
232 | //Double_t x, par[5], cov[15];\r | |
233 | //track->GetExternalParameters(x, p);\r | |
234 | //track->GetExternalCovariance(cov);\r | |
235 | \r | |
236 | Double_t v[3] = {track->OneOverPt(),TMath::Sqrt(track->GetSigma1Pt2()),centralityF};\r | |
237 | fTrackParamHist->Fill(v);\r | |
98af3b87 | 238 | \r |
239 | Double_t v2[3] = {track->Pt(),track->Pt()*TMath::Sqrt(track->GetSigma1Pt2()),centralityF};\r | |
240 | fTrackParamHist2->Fill(v2);\r | |
fc98fbb5 | 241 | }\r |
242 | } \r | |
243 | }\r | |
244 | }\r | |
245 | }\r | |
246 | }\r | |
247 | \r | |
248 | //_____________________________________________________________________________\r | |
249 | Long64_t AliPtResolAnalysisPbPb::Merge(TCollection* const list) \r | |
250 | {\r | |
251 | // Merge list of objects (needed by PROOF)\r | |
252 | \r | |
253 | if (!list)\r | |
254 | return 0;\r | |
255 | \r | |
256 | if (list->IsEmpty())\r | |
257 | return 1;\r | |
258 | \r | |
259 | TIterator* iter = list->MakeIterator();\r | |
260 | TObject* obj = 0;\r | |
261 | \r | |
262 | //\r | |
263 | //TList *collPhysSelection = new TList;\r | |
264 | \r | |
265 | // collection of generated histograms\r | |
266 | \r | |
267 | Int_t count=0;\r | |
268 | while((obj = iter->Next()) != 0) {\r | |
269 | AliPtResolAnalysisPbPb* entry = dynamic_cast<AliPtResolAnalysisPbPb*>(obj);\r | |
270 | if (entry == 0) continue; \r | |
271 | \r | |
272 | //\r | |
273 | fTrackParamHist->Add(entry->fTrackParamHist);\r | |
98af3b87 | 274 | fTrackParamHist2->Add(entry->fTrackParamHist2);\r |
fc98fbb5 | 275 | }\r |
276 | \r | |
277 | return count;\r | |
278 | }\r | |
279 | \r | |
280 | //_____________________________________________________________________________\r | |
281 | void AliPtResolAnalysisPbPb::Analyse() \r | |
282 | {\r | |
283 | // Analyse histograms\r | |
284 | //\r | |
285 | TH1::AddDirectory(kFALSE);\r | |
286 | TObjArray *aFolderObj = new TObjArray;\r | |
62e3b4b6 | 287 | if(!aFolderObj) return;\r |
fc98fbb5 | 288 | \r |
289 | //\r | |
290 | // Reconstructed event vertex\r | |
291 | //\r | |
292 | \r | |
293 | // export objects to analysis folder\r | |
294 | fAnalysisFolder = ExportToFolder(aFolderObj);\r | |
62e3b4b6 | 295 | if(!fAnalysisFolder) { \r |
296 | if(aFolderObj) delete aFolderObj;\r | |
297 | return;\r | |
298 | }\r | |
fc98fbb5 | 299 | \r |
300 | // delete only TObjArray\r | |
301 | if(aFolderObj) delete aFolderObj;\r | |
302 | }\r | |
303 | \r | |
304 | //_____________________________________________________________________________\r | |
305 | TFolder* AliPtResolAnalysisPbPb::ExportToFolder(TObjArray * const array) \r | |
306 | {\r | |
307 | // recreate folder avery time and export objects to new one\r | |
308 | //\r | |
62e3b4b6 | 309 | if(!array) return NULL;\r |
310 | \r | |
fc98fbb5 | 311 | AliPtResolAnalysisPbPb * comp=this;\r |
312 | TFolder *folder = comp->GetAnalysisFolder();\r | |
313 | \r | |
314 | TString name, title;\r | |
315 | TFolder *newFolder = 0;\r | |
316 | Int_t i = 0;\r | |
317 | Int_t size = array->GetSize();\r | |
318 | \r | |
319 | if(folder) { \r | |
320 | // get name and title from old folder\r | |
321 | name = folder->GetName(); \r | |
322 | title = folder->GetTitle(); \r | |
323 | \r | |
324 | // delete old one\r | |
325 | delete folder;\r | |
326 | \r | |
327 | // create new one\r | |
328 | newFolder = CreateFolder(name.Data(),title.Data());\r | |
329 | newFolder->SetOwner();\r | |
330 | \r | |
331 | // add objects to folder\r | |
332 | while(i < size) {\r | |
333 | newFolder->Add(array->At(i));\r | |
334 | i++;\r | |
335 | }\r | |
336 | }\r | |
337 | \r | |
338 | return newFolder;\r | |
339 | }\r | |
340 | \r | |
341 | //_____________________________________________________________________________\r | |
342 | TFolder* AliPtResolAnalysisPbPb::CreateFolder(TString name,TString title) { \r | |
343 | // create folder for analysed histograms\r | |
344 | //\r | |
345 | TFolder *folder = 0;\r | |
346 | folder = new TFolder(name.Data(),title.Data());\r | |
347 | \r | |
348 | return folder;\r | |
349 | }\r |