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2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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14 **************************************************************************/
19 // Add the muon tracks to the generic AOD track branch during the
20 // filtering of the ESD.
22 // Authors: R. Arnaldi 5/5/08 and L. Aphecetche January 2011
25 // - completely disable all the branches that are not required by (most) the muon analyses,
26 // e.g. cascades, v0s, kinks, jets, etc...
27 // - filter severely the tracks (keep only muon tracks) and vertices (keep only primary -including
28 // pile-up - vertices) branches
30 // (see AddFilteredAOD method)
33 #include "AliAnalysisTaskESDMuonFilter.h"
35 #include "AliAODDimuon.h"
36 #include "AliAODEvent.h"
37 #include "AliAODHandler.h"
38 #include "AliAODExtension.h"
39 #include "AliAODMCParticle.h"
40 #include "AliAODMuonReplicator.h"
41 #include "AliAODVertex.h"
42 #include "AliAnalysisFilter.h"
43 #include "AliAnalysisManager.h"
44 #include "AliCodeTimer.h"
45 #include "AliESDEvent.h"
46 #include "AliESDInputHandler.h"
47 #include "AliESDMuonTrack.h"
48 #include "AliESDVertex.h"
49 #include "AliESDtrack.h"
51 #include "AliMCEvent.h"
52 #include "AliMCEventHandler.h"
53 #include "AliMultiplicity.h"
56 #include <TParticle.h>
58 ClassImp(AliAnalysisTaskESDMuonFilter)
59 ClassImp(AliAnalysisNonMuonTrackCuts)
61 ////////////////////////////////////////////////////////////////////////
63 AliAnalysisNonMuonTrackCuts::AliAnalysisNonMuonTrackCuts()
68 Bool_t AliAnalysisNonMuonTrackCuts::IsSelected(TObject* obj)
70 // Returns true if the object is a muon track
71 AliAODTrack* track = dynamic_cast<AliAODTrack*>(obj);
72 if (track && track->IsMuonTrack()) return kTRUE;
76 AliAnalysisNonPrimaryVertices::AliAnalysisNonPrimaryVertices()
81 Bool_t AliAnalysisNonPrimaryVertices::IsSelected(TObject* obj)
83 // Returns true if the object is a primary vertex
85 AliAODVertex* vertex = dynamic_cast<AliAODVertex*>(obj);
88 if ( vertex->GetType() == AliAODVertex::kPrimary ||
89 vertex->GetType() == AliAODVertex::kMainSPD ||
90 vertex->GetType() == AliAODVertex::kPileupSPD ||
91 vertex->GetType() == AliAODVertex::kPileupTracks ||
92 vertex->GetType() == AliAODVertex::kMainTPC )
98 // enum AODVtx_t {kUndef=-1, kPrimary, kKink, kV0, kCascade, kMulti, kMainSPD, kPileupSPD, kPileupTracks,kMainTPC};
104 AliAnalysisTaskESDMuonFilter::AliAnalysisTaskESDMuonFilter(Bool_t onlyMuon, Bool_t keepAllEvents, Int_t mcMode):
107 fEnableMuonAOD(kFALSE),
108 fEnableDimuonAOD(kFALSE),
110 fKeepAllEvents(keepAllEvents),
113 // Default constructor
116 AliAnalysisTaskESDMuonFilter::AliAnalysisTaskESDMuonFilter(const char* name, Bool_t onlyMuon, Bool_t keepAllEvents, Int_t mcMode):
117 AliAnalysisTaskSE(name),
119 fEnableMuonAOD(kFALSE),
120 fEnableDimuonAOD(kFALSE),
122 fKeepAllEvents(keepAllEvents),
128 //______________________________________________________________________________
129 void AliAnalysisTaskESDMuonFilter::UserCreateOutputObjects()
131 // Create the output container
132 if (fTrackFilter) OutputTree()->GetUserInfo()->Add(fTrackFilter);
135 //______________________________________________________________________________
136 void AliAnalysisTaskESDMuonFilter::PrintTask(Option_t *option, Int_t indent) const
138 // Specify how we are configured
140 AliAnalysisTaskSE::PrintTask(option,indent);
142 TString spaces(' ',indent+3);
146 cout << spaces.Data() << "Keep only muon information " << endl;
150 cout << spaces.Data() << "Keep all information from standard AOD" << endl;
153 if ( fKeepAllEvents )
155 cout << spaces.Data() << "Keep all events, regardless of number of muons" << endl;
159 cout << spaces.Data() << "Keep only events with at least one muon" << endl;
164 cout << spaces.Data() << "Assuming work on MC data (i.e. will transmit MC branches)" << endl;
168 //______________________________________________________________________________
169 void AliAnalysisTaskESDMuonFilter::AddFilteredAOD(const char* aodfilename, const char* title)
171 // Add an output filtered and replicated aod
173 AliAODHandler *aodH = (AliAODHandler*)((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
174 if (!aodH) Fatal("UserCreateOutputObjects", "No AOD handler");
176 AliAODExtension* ext = aodH->AddFilteredAOD(aodfilename,title);
183 AliAODMuonReplicator* murep = new AliAODMuonReplicator("MuonReplicator",
184 "remove non muon tracks and non primary or pileup vertices",
185 new AliAnalysisNonMuonTrackCuts,
186 new AliAnalysisNonPrimaryVertices,
189 ext->DropUnspecifiedBranches(); // all branches not part of a FilterBranch call (below) will be dropped
191 ext->FilterBranch("tracks",murep);
192 ext->FilterBranch("vertices",murep);
193 ext->FilterBranch("dimuons",murep);
194 ext->FilterBranch("AliAODVZERO",murep);
198 // MC branches will be copied (if present), as they are, but only
199 // for events with at least one muon.
200 // For events w/o muon, mcparticles array will be empty and mcheader will be dummy
201 // (e.g. strlen(GetGeneratorName())==0)
203 ext->FilterBranch("mcparticles",murep);
204 ext->FilterBranch("mcHeader",murep);
209 //______________________________________________________________________________
210 void AliAnalysisTaskESDMuonFilter::Init()
213 if(fEnableMuonAOD) AddFilteredAOD("AliAOD.Muons.root", "MuonEvents");
214 if(fEnableDimuonAOD) AddFilteredAOD("AliAOD.Dimuons.root", "DimuonEvents");
218 //______________________________________________________________________________
219 void AliAnalysisTaskESDMuonFilter::UserExec(Option_t */*option*/)
221 // Execute analysis for current event
223 Long64_t ientry = Entry();
224 if(fDebug)printf("Muon Filter: Analysing event # %5d\n", (Int_t) ientry);
229 //______________________________________________________________________________
230 void AliAnalysisTaskESDMuonFilter::ConvertESDtoAOD()
232 // ESD Muon Filter analysis task executed for each event
234 AliCodeTimerAuto("",0);
236 AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent());
239 AliError("Could not get input ESD event");
243 AliMCEventHandler *mcH = static_cast<AliMCEventHandler*>((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler());
245 // Define arrays for muons
250 // has to be changed once the muon pid is provided by the ESD
251 for (Int_t i = 0; i < 10; pid[i++] = 0.) {}
252 pid[AliAODTrack::kMuon]=1.;
254 AliAODHeader* header = AODEvent()->GetHeader();
255 AliAODTrack *aodTrack = 0x0;
256 AliESDMuonTrack *esdMuTrack = 0x0;
258 // Access to the AOD container of tracks
259 TClonesArray &tracks = *(AODEvent()->GetTracks());
260 Int_t jTracks = header->GetRefMultiplicity();
262 // Read primary vertex from AOD event
263 AliAODVertex *primary = AODEvent()->GetPrimaryVertex();
264 if (fDebug && primary) primary->Print();
266 // Loop on muon tracks to fill the AOD track branch
267 Int_t nMuTracks = esd->GetNumberOfMuonTracks();
269 for (Int_t iTrack=0; iTrack<nMuTracks; ++iTrack) esd->GetMuonTrack(iTrack)->SetESDEvent(esd);
271 // Update number of positive and negative tracks from AOD event (M.G.)
272 Int_t nPosTracks = header->GetRefMultiplicityPos();
273 Int_t nNegTracks = header->GetRefMultiplicityNeg();
275 // Access to the AOD container of dimuons
276 TClonesArray &dimuons = *(AODEvent()->GetDimuons());
281 Int_t nMuonTrack[100];
282 UChar_t itsClusMap(0);
284 for(int imuon=0;imuon<100;imuon++) nMuonTrack[imuon]=0;
286 for (Int_t nMuTrack = 0; nMuTrack < nMuTracks; ++nMuTrack)
288 esdMuTrack = esd->GetMuonTrack(nMuTrack);
290 if (!esdMuTrack->ContainTrackerData()) continue;
292 UInt_t selectInfo(0);
296 selectInfo = fTrackFilter->IsSelected(esdMuTrack);
302 p[0] = esdMuTrack->Px();
303 p[1] = esdMuTrack->Py();
304 p[2] = esdMuTrack->Pz();
306 pos[0] = esdMuTrack->GetNonBendingCoor();
307 pos[1] = esdMuTrack->GetBendingCoor();
308 pos[2] = esdMuTrack->GetZ();
310 if (mcH) mcH->SelectParticle(esdMuTrack->GetLabel()); // to insure that particle's ancestors will be in output MC branches
312 aodTrack = new(tracks[jTracks++]) AliAODTrack(esdMuTrack->GetUniqueID(), // ID
313 esdMuTrack->GetLabel(), // label
315 kTRUE, // cartesian coordinate system
318 0x0, // covariance matrix
319 esdMuTrack->Charge(), // charge
320 itsClusMap, // ITSClusterMap
322 primary, // primary vertex
323 kFALSE, // used for vertex fit?
324 kFALSE, // used for primary vertex fit?
325 AliAODTrack::kPrimary,// track type
328 aodTrack->SetXYAtDCA(esdMuTrack->GetNonBendingCoorAtDCA(), esdMuTrack->GetBendingCoorAtDCA());
329 aodTrack->SetPxPyPzAtDCA(esdMuTrack->PxAtDCA(), esdMuTrack->PyAtDCA(), esdMuTrack->PzAtDCA());
330 aodTrack->SetRAtAbsorberEnd(esdMuTrack->GetRAtAbsorberEnd());
331 aodTrack->ConvertAliPIDtoAODPID();
332 aodTrack->SetChi2perNDF(esdMuTrack->GetChi2() / (2.*esdMuTrack->GetNHit() - 5.));
333 aodTrack->SetChi2MatchTrigger(esdMuTrack->GetChi2MatchTrigger());
334 aodTrack->SetHitsPatternInTrigCh(esdMuTrack->GetHitsPatternInTrigCh());
335 aodTrack->SetMuonClusterMap(esdMuTrack->GetMuonClusterMap());
336 aodTrack->SetMatchTrigger(esdMuTrack->GetMatchTrigger());
337 aodTrack->Connected(esdMuTrack->IsConnected());
338 primary->AddDaughter(aodTrack);
340 if (esdMuTrack->Charge() > 0) nPosTracks++;
343 nMuonTrack[nMuons]= jTracks-1;
349 for(int i=0;i<nMuons;i++){
350 Int_t index0 = nMuonTrack[i];
351 for(int j=i+1;j<nMuons;j++){
352 Int_t index1 = nMuonTrack[j];
353 new(dimuons[jDimuons++]) AliAODDimuon(tracks.At(index0),tracks.At(index1));
356 AliAODDimuon *dimuon0 = (AliAODDimuon*)dimuons.At(jDimuons-1);
357 printf("Dimuon: mass = %f, px=%f, py=%f, pz=%f\n",dimuon0->M(),dimuon0->Px(),dimuon0->Py(),dimuon0->Pz());
358 AliAODTrack *mu0 = (AliAODTrack*) dimuon0->GetMu(0);
359 AliAODTrack *mu1 = (AliAODTrack*) dimuon0->GetMu(1);
360 printf("Muon0 px=%f py=%f pz=%f\n",mu0->Px(),mu0->Py(),mu0->Pz());
361 printf("Muon1 px=%f py=%f pz=%f\n",mu1->Px(),mu1->Py(),mu1->Pz());
368 header->SetRefMultiplicity(jTracks);
369 header->SetRefMultiplicityPos(nPosTracks);
370 header->SetRefMultiplicityNeg(nNegTracks);
371 header->SetNumberOfMuons(nMuons);
372 header->SetNumberOfDimuons(nDimuons);
374 AliAODHandler* handler = dynamic_cast<AliAODHandler*>(AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler());
376 if ( handler && fEnableMuonAOD && ( (nMuons>0) || fKeepAllEvents ) )
378 AliAODExtension *extMuons = handler->GetFilteredAOD("AliAOD.Muons.root");
379 if ( extMuons ) extMuons->SelectEvent();
382 if ( handler && fEnableDimuonAOD && ( (nMuons>1) || fKeepAllEvents ) )
384 AliAODExtension *extDimuons = handler->GetFilteredAOD("AliAOD.Dimuons.root");
385 if ( extDimuons ) extDimuons->SelectEvent();
390 void AliAnalysisTaskESDMuonFilter::Terminate(Option_t */*option*/)
392 // Terminate analysis
394 if (fDebug > 1) printf("AnalysisESDfilter: Terminate() \n");