1 /*************************************************************************
2 * Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 ///////////////////////////////////////////////////////////////////////////
18 // Basic Analysis Task //
20 ///////////////////////////////////////////////////////////////////////////
25 #include <AliAODHandler.h>
26 #include <AliAODInputHandler.h>
27 #include <AliAnalysisManager.h>
28 #include <AliVEvent.h>
29 #include <AliTriggerAnalysis.h>
30 #include <AliInputEventHandler.h>
31 #include <AliAODInputHandler.h>
32 #include <AliESDInputHandler.h>
34 #include "AliDielectron.h"
35 #include "AliDielectronMC.h"
36 #include "AliDielectronHistos.h"
37 #include "AliDielectronVarManager.h"
38 #include "AliAnalysisTaskDielectronFilter.h"
39 #include "AliAODCaloCluster.h"
41 ClassImp(AliAnalysisTaskDielectronFilter)
43 //_________________________________________________________________________________
44 AliAnalysisTaskDielectronFilter::AliAnalysisTaskDielectronFilter() :
47 fSelectPhysics(kTRUE),
48 fTriggerMask(AliVEvent::kMB),
49 fExcludeTriggerMask(0),
50 fTriggerOnV0AND(kFALSE),
51 fRejectPileup(kFALSE),
54 fTriggerAnalysis(0x0),
55 fStoreLikeSign(kFALSE),
56 fStoreRotatedPairs(kFALSE),
57 fCreateNanoAOD(kFALSE),
65 //_________________________________________________________________________________
66 AliAnalysisTaskDielectronFilter::AliAnalysisTaskDielectronFilter(const char *name) :
67 AliAnalysisTaskSE(name),
69 fSelectPhysics(kTRUE),
70 fTriggerMask(AliVEvent::kMB),
71 fExcludeTriggerMask(0),
72 fTriggerOnV0AND(kFALSE),
73 fRejectPileup(kFALSE),
76 fTriggerAnalysis(0x0),
77 fStoreLikeSign(kFALSE),
78 fStoreRotatedPairs(kFALSE),
79 fCreateNanoAOD(kFALSE),
85 DefineInput(0,TChain::Class());
86 DefineOutput(1, THashList::Class());
87 DefineOutput(2, TH1D::Class());
90 //_________________________________________________________________________________
91 void AliAnalysisTaskDielectronFilter::Init()
94 if (fDebug > 1) AliInfo("Init() \n");
96 // require AOD handler
97 AliAODHandler *aodH = (AliAODHandler*)((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
98 if (!aodH) AliFatal("No AOD handler. Halting.");
100 aodH->AddFilteredAOD("AliAOD.Dielectron.root", "DielectronEvents");
101 // AddAODBranch("AliDielectronCandidates",fDielectron->GetPairArraysPointer(),"deltaAOD.Dielectron.root");
104 //_________________________________________________________________________________
105 void AliAnalysisTaskDielectronFilter::UserCreateOutputObjects()
108 // Initilise histograms
111 //require dielectron framework
113 AliFatal("Dielectron framework class required. Please create and instance with proper cuts and set it via 'SetDielectron' before executing this task!!!");
116 if(fStoreRotatedPairs) fDielectron->SetStoreRotatedPairs(kTRUE);
117 fDielectron->SetDontClearArrays();
120 Int_t nbins=kNbinsEvent+2;
122 fEventStat=new TH1D("hEventStat","Event statistics",nbins,0,nbins);
123 fEventStat->GetXaxis()->SetBinLabel(1,"Before Phys. Sel.");
124 fEventStat->GetXaxis()->SetBinLabel(2,"After Phys. Sel.");
127 fEventStat->GetXaxis()->SetBinLabel(3,"Bin3 not used");
128 fEventStat->GetXaxis()->SetBinLabel(4,"Bin4 not used");
129 fEventStat->GetXaxis()->SetBinLabel(5,"Bin5 not used");
131 if(fTriggerOnV0AND) fEventStat->GetXaxis()->SetBinLabel(3,"V0and triggers");
132 if (fEventFilter) fEventStat->GetXaxis()->SetBinLabel(4,"After Event Filter");
133 if (fRejectPileup) fEventStat->GetXaxis()->SetBinLabel(5,"After Pileup rejection");
135 fEventStat->GetXaxis()->SetBinLabel((kNbinsEvent+1),Form("#splitline{1 candidate}{%s}",fDielectron->GetName()));
136 fEventStat->GetXaxis()->SetBinLabel((kNbinsEvent+2),Form("#splitline{With >1 candidate}{%s}",fDielectron->GetName()));
139 Bool_t isAOD=AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()->IsA()==AliAODInputHandler::Class();
140 if(fCreateNanoAOD && isAOD){
141 AliAODHandler *aodH = (AliAODHandler*)((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
142 AliAODExtension *extDielectron = aodH->GetFilteredAOD("AliAOD.Dielectron.root");
143 TClonesArray *nanoAODTracks = new TClonesArray("AliAODTrack",500);
144 nanoAODTracks->SetName("tracks");
145 extDielectron->AddBranch("TClonesArray", &nanoAODTracks);
146 TClonesArray *nanoAODVertices = new TClonesArray("AliAODVertex",500);
147 nanoAODVertices->SetName("vertices");
148 extDielectron->AddBranch("TClonesArray", &nanoAODVertices);
149 TClonesArray *nanoAODCaloCluster = new TClonesArray("AliAODCaloCluster",500);
150 nanoAODCaloCluster->SetName("caloClusters");
151 extDielectron->AddBranch("TClonesArray", &nanoAODCaloCluster);
152 extDielectron->GetAOD()->GetStdContent();
153 }else if(fCreateNanoAOD && !isAOD){AliWarning("Filtered-Nano AODs creation works only on AODs "); }
155 PostData(2,fEventStat);
158 //_________________________________________________________________________________
159 void AliAnalysisTaskDielectronFilter::UserExec(Option_t *)
162 // Main loop. Called for every event
165 if (!fDielectron) return;
167 AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
168 Bool_t isESD=man->GetInputEventHandler()->IsA()==AliESDInputHandler::Class();
169 Bool_t isAOD=man->GetInputEventHandler()->IsA()==AliAODInputHandler::Class();
172 AliInputEventHandler* inputHandler = (AliInputEventHandler*) (man->GetInputEventHandler());
173 if (!inputHandler) return;
175 if ( inputHandler->GetPIDResponse() ){
176 AliDielectronVarManager::SetPIDResponse( inputHandler->GetPIDResponse() );
178 AliFatal("This task needs the PID response attached to the input event handler!");
181 // Was event selected ?
182 ULong64_t isSelected = AliVEvent::kAny;
183 Bool_t isRejected = kFALSE;
184 if( fSelectPhysics && inputHandler){
185 if((isESD && inputHandler->GetEventSelection()) || isAOD){
186 isSelected = inputHandler->IsEventSelected();
187 if (fExcludeTriggerMask && (isSelected&fExcludeTriggerMask)) isRejected=kTRUE;
188 if (fTriggerLogic==kAny) isSelected&=fTriggerMask;
189 else if (fTriggerLogic==kExact) isSelected=((isSelected&fTriggerMask)==fTriggerMask);
193 //before physics selection
194 fEventStat->Fill(kAllEvents);
195 if (isSelected==0||isRejected) {
196 PostData(3,fEventStat);
199 //after physics selection
200 fEventStat->Fill(kSelectedEvents);
204 if(isESD){if (!fTriggerAnalysis->IsOfflineTriggerFired(static_cast<AliESDEvent*>(InputEvent()), AliTriggerAnalysis::kV0AND))
206 if(isAOD){if(!((static_cast<AliAODEvent*>(InputEvent()))->GetVZEROData()->GetV0ADecision() == AliVVZERO::kV0BB &&
207 (static_cast<AliAODEvent*>(InputEvent()))->GetVZEROData()->GetV0CDecision() == AliVVZERO::kV0BB) )
211 fEventStat->Fill(kV0andEvents);
213 //Fill Event histograms before the event filter
214 Double_t values[AliDielectronVarManager::kNMaxValues]={0};
215 Double_t valuesMC[AliDielectronVarManager::kNMaxValues]={0};
216 AliDielectronVarManager::SetEvent(InputEvent());
217 AliDielectronVarManager::Fill(InputEvent(),values);
218 AliDielectronVarManager::Fill(InputEvent(),valuesMC);
220 Bool_t hasMC=AliDielectronMC::Instance()->HasMC();
222 if (AliDielectronMC::Instance()->ConnectMCEvent())
223 AliDielectronVarManager::Fill(AliDielectronMC::Instance()->GetMCEvent(),valuesMC);
226 AliDielectronHistos *h=fDielectron->GetHistoManager();
228 if (h->GetHistogramList()->FindObject("Event_noCuts"))
229 h->FillClass("Event_noCuts",AliDielectronVarManager::kNMaxValues,values);
230 if (hasMC && h->GetHistogramList()->FindObject("MCEvent_noCuts"))
231 h->FillClass("Event_noCuts",AliDielectronVarManager::kNMaxValues,valuesMC);
236 if (!fEventFilter->IsSelected(InputEvent())) return;
238 fEventStat->Fill(kFilteredEvents);
242 if (InputEvent()->IsPileupFromSPD(3,0.8,3.,2.,5.)) return;
244 fEventStat->Fill(kPileupEvents);
247 Double_t bz = InputEvent()->GetMagneticField();
248 AliKFParticle::SetField( bz );
250 AliDielectronPID::SetCorrVal((Double_t)InputEvent()->GetRunNumber());
252 fDielectron->Process(InputEvent());
254 Bool_t hasCand = kFALSE;
255 if(fStoreLikeSign) hasCand = (fDielectron->HasCandidates() || fDielectron->HasCandidatesLikeSign());
256 else hasCand = (fDielectron->HasCandidates());
258 if(fStoreRotatedPairs) hasCand = (hasCand || fDielectron->HasCandidatesTR());
261 AliAODHandler *aodH=(AliAODHandler*)((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
262 AliAODEvent *aod = aodH->GetAOD();
264 // reset bit for all tracks
266 for(Int_t it=0;it<aod->GetNumberOfTracks();it++){
267 aod->GetTrack(it)->ResetBit(kIsReferenced); aod->GetTrack(it)->SetUniqueID(0);
271 //replace the references of the legs with the AOD references
272 TObjArray *obj = 0x0;
273 for(Int_t i=0; i < 11; i++ ){
274 obj = (TObjArray*)((*(fDielectron->GetPairArraysPointer()))->UncheckedAt(i));
276 for(int j=0;j<obj->GetEntriesFast();j++){
277 AliDielectronPair *pairObj = (AliDielectronPair*)obj->UncheckedAt(j);
278 Int_t id1 = ((AliVTrack*)pairObj->GetFirstDaughter())->GetID();
279 Int_t id2 = ((AliVTrack*)pairObj->GetSecondDaughter())->GetID();
281 for(Int_t it=0;it<aod->GetNumberOfTracks();it++){
282 if(aod->GetTrack(it)->GetID() == id1) pairObj->SetRefFirstDaughter(aod->GetTrack(it));
283 if(aod->GetTrack(it)->GetID() == id2) pairObj->SetRefSecondDaughter(aod->GetTrack(it));
288 AliAODExtension *extDielectron = aodH->GetFilteredAOD("AliAOD.Dielectron.root");
289 extDielectron->SelectEvent();
290 Int_t ncandidates=fDielectron->GetPairArray(1)->GetEntriesFast();
291 if (ncandidates==1) fEventStat->Fill((kNbinsEvent));
292 else if (ncandidates>1) fEventStat->Fill((kNbinsEvent+1));
294 //see if dielectron candidate branch exists, if not create is
295 TTree *t=extDielectron->GetTree();
297 if(!t->GetListOfBranches()->GetEntries() && isAOD)
298 t->Branch(aod->GetList());
300 if (!t->GetBranch("dielectrons"))
301 t->Bronch("dielectrons","TObjArray",fDielectron->GetPairArraysPointer());
303 // store positive and negative tracks
304 if(fCreateNanoAOD && isAOD){
305 Int_t nTracks = (fDielectron->GetTrackArray(0))->GetEntries() + (fDielectron->GetTrackArray(1))->GetEntries();
306 AliAODEvent *nanoEv = extDielectron->GetAOD();
307 nanoEv->GetTracks()->Clear();
308 nanoEv->GetVertices()->Clear();
309 nanoEv->GetCaloClusters()->Clear();
311 AliAODVertex* tmp = ((static_cast<AliAODEvent*>(InputEvent()))->GetPrimaryVertex())->CloneWithoutRefs();
312 nanoEv->AddVertex(tmp);
313 AliAODVertex* tmpSpd = ((static_cast<AliAODEvent*>(InputEvent()))->GetPrimaryVertexSPD())->CloneWithoutRefs();
314 nanoEv->AddVertex(tmpSpd);
315 nanoEv->GetVertex(0)->SetNContributors((static_cast<AliAODEvent*>(InputEvent()))->GetPrimaryVertex()->GetNContributors());
316 nanoEv->GetVertex(1)->SetNContributors((static_cast<AliAODEvent*>(InputEvent()))->GetPrimaryVertexSPD()->GetNContributors());
319 for(int kj=0; kj<(fDielectron->GetTrackArray(0))->GetEntries(); kj++){
320 Int_t posit = nanoEv->AddTrack((AliAODTrack*)fDielectron->GetTrackArray(0)->At(kj));
321 Int_t posVtx = nanoEv->AddVertex(((AliAODTrack*)fDielectron->GetTrackArray(0)->At(kj))->GetProdVertex());
322 nanoEv->GetVertex(posVtx)->ResetBit(kIsReferenced);
323 nanoEv->GetVertex(posVtx)->SetUniqueID(0);
324 nanoEv->GetVertex(posVtx)->RemoveDaughters();
325 nanoEv->GetTrack(posit)->ResetBit(kIsReferenced);
326 nanoEv->GetTrack(posit)->SetUniqueID(0);
328 Int_t caloIndex = ((AliAODTrack*)fDielectron->GetTrackArray(0)->At(kj))->GetEMCALcluster();
329 if(caloIndex > 0 && (static_cast<AliAODEvent*>(InputEvent()))->GetCaloCluster(caloIndex)){
330 Int_t posCaloCls = nanoEv->AddCaloCluster(static_cast<AliAODEvent*>(InputEvent())->GetCaloCluster(caloIndex));
331 nanoEv->GetTrack(posit)->SetEMCALcluster(posCaloCls);
332 AliAODCaloCluster *clCls = nanoEv->GetCaloCluster(posCaloCls);
333 for(int u=0; u<clCls->GetNTracksMatched(); u++) clCls->RemoveTrackMatched(clCls->GetTrackMatched(u));
334 nanoEv->GetCaloCluster(posCaloCls)->AddTrackMatched((AliAODTrack*)nanoEv->GetTrack(posit));
336 // set references for vtx
337 nanoEv->GetTrack(posit)->SetProdVertex(nanoEv->GetVertex(posVtx));
340 for(int kj=0; kj<(fDielectron->GetTrackArray(1))->GetEntries(); kj++){
341 Int_t negat = nanoEv->AddTrack((AliAODTrack*)fDielectron->GetTrackArray(1)->At(kj));
342 Int_t negVtx = nanoEv->AddVertex(((AliAODTrack*)fDielectron->GetTrackArray(1)->At(kj))->GetProdVertex());
343 nanoEv->GetVertex(negVtx)->ResetBit(kIsReferenced);
344 nanoEv->GetVertex(negVtx)->SetUniqueID(0);
345 nanoEv->GetVertex(negVtx)->RemoveDaughters();
346 nanoEv->GetTrack(negat)->ResetBit(kIsReferenced);
347 nanoEv->GetTrack(negat)->SetUniqueID(0);
349 Int_t caloIndex = ((AliAODTrack*)fDielectron->GetTrackArray(1)->At(kj))->GetEMCALcluster();
350 if(caloIndex > 0 && (static_cast<AliAODEvent*>(InputEvent()))->GetCaloCluster(caloIndex)){
351 Int_t negCaloCls = nanoEv->AddCaloCluster(static_cast<AliAODEvent*>(InputEvent())->GetCaloCluster(caloIndex));
352 nanoEv->GetTrack(negat)->SetEMCALcluster(negCaloCls);
353 AliAODCaloCluster *clCls = nanoEv->GetCaloCluster(negCaloCls);
354 for(int u=0; u<clCls->GetNTracksMatched(); u++) clCls->RemoveTrackMatched(clCls->GetTrackMatched(u));
355 nanoEv->GetCaloCluster(negCaloCls)->AddTrackMatched((AliAODTrack*)nanoEv->GetTrack(negat));
357 nanoEv->GetTrack(negat)->SetProdVertex(nanoEv->GetVertex(negVtx));
359 delete tmp; delete tmpSpd;
360 nanoEv->GetTracks()->Expand(nTracks);
361 nanoEv->GetVertices()->Expand(nTracks+2);
362 nanoEv->GetCaloClusters()->Expand(nanoEv->GetNumberOfCaloClusters());
368 PostData(1, const_cast<THashList*>(fDielectron->GetHistogramList()));
369 PostData(2,fEventStat);