1 /**************************************************************************
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4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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8 * documentation strictly for non-commercial purposes is hereby granted *
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11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
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14 **************************************************************************/
17 // Add the muon tracks to the generic AOD track branch during the
18 // filtering of the ESD.
20 // Authors: R. Arnaldi 5/5/08 and L. Aphecetche January 2011
23 // - completely disable all the branches that are not required by (most) the muon analyses,
24 // e.g. cascades, v0s, kinks, jets, etc...
25 // - filter severely the tracks (keep only muon tracks) and vertices (keep only primary -including
26 // pile-up - vertices) branches
28 // (see AddFilteredAOD method)
31 #include "AliAnalysisTaskESDMuonFilter.h"
33 #include "AliAODDimuon.h"
34 #include "AliAODEvent.h"
35 #include "AliAODHandler.h"
36 #include "AliAODExtension.h"
37 #include "AliAODMCParticle.h"
38 #include "AliAODMuonReplicator.h"
39 #include "AliAODVertex.h"
40 #include "AliAnalysisFilter.h"
41 #include "AliAnalysisManager.h"
42 #include "AliCodeTimer.h"
43 #include "AliESDEvent.h"
44 #include "AliESDInputHandler.h"
45 #include "AliESDMuonTrack.h"
46 #include "AliESDVertex.h"
47 #include "AliESDtrack.h"
49 #include "AliMCEvent.h"
50 #include "AliMCEventHandler.h"
51 #include "AliMultiplicity.h"
55 #include <TParticle.h>
57 ClassImp(AliAnalysisTaskESDMuonFilter)
58 ClassImp(AliAnalysisNonMuonTrackCuts)
60 ////////////////////////////////////////////////////////////////////////
62 AliAnalysisNonMuonTrackCuts::AliAnalysisNonMuonTrackCuts()
67 Bool_t AliAnalysisNonMuonTrackCuts::IsSelected(TObject* obj)
69 // Returns true if the object is a muon track
70 AliAODTrack* track = dynamic_cast<AliAODTrack*>(obj);
71 if (track && track->IsMuonTrack()) return kTRUE;
75 AliAnalysisNonPrimaryVertices::AliAnalysisNonPrimaryVertices()
80 Bool_t AliAnalysisNonPrimaryVertices::IsSelected(TObject* obj)
82 // Returns true if the object is a primary vertex
84 AliAODVertex* vertex = dynamic_cast<AliAODVertex*>(obj);
87 if ( vertex->GetType() == AliAODVertex::kPrimary ||
88 vertex->GetType() == AliAODVertex::kMainSPD ||
89 vertex->GetType() == AliAODVertex::kPileupSPD ||
90 vertex->GetType() == AliAODVertex::kPileupTracks ||
91 vertex->GetType() == AliAODVertex::kMainTPC )
97 // enum AODVtx_t {kUndef=-1, kPrimary, kKink, kV0, kCascade, kMulti, kMainSPD, kPileupSPD, kPileupTracks,kMainTPC};
103 AliAnalysisTaskESDMuonFilter::AliAnalysisTaskESDMuonFilter(Bool_t onlyMuon, Bool_t keepAllEvents, Int_t mcMode):
106 fEnableMuonAOD(kFALSE),
107 fEnableDimuonAOD(kFALSE),
109 fKeepAllEvents(keepAllEvents),
112 // Default constructor
115 AliAnalysisTaskESDMuonFilter::AliAnalysisTaskESDMuonFilter(const char* name, Bool_t onlyMuon, Bool_t keepAllEvents, Int_t mcMode):
116 AliAnalysisTaskSE(name),
118 fEnableMuonAOD(kFALSE),
119 fEnableDimuonAOD(kFALSE),
121 fKeepAllEvents(keepAllEvents),
127 //______________________________________________________________________________
128 void AliAnalysisTaskESDMuonFilter::UserCreateOutputObjects()
130 // Create the output container
131 if (fTrackFilter) OutputTree()->GetUserInfo()->Add(fTrackFilter);
134 //______________________________________________________________________________
135 void AliAnalysisTaskESDMuonFilter::PrintTask(Option_t *option, Int_t indent) const
137 // Specify how we are configured
139 AliAnalysisTaskSE::PrintTask(option,indent);
141 TString spaces(' ',indent+3);
145 cout << spaces.Data() << "Keep only muon information " << endl;
149 cout << spaces.Data() << "Keep all information from standard AOD" << endl;
152 if ( fKeepAllEvents )
154 cout << spaces.Data() << "Keep all events, regardless of number of muons" << endl;
158 cout << spaces.Data() << "Keep only events with at least one muon" << endl;
163 cout << spaces.Data() << "Assuming work on MC data (i.e. will transmit MC branches)" << endl;
167 //______________________________________________________________________________
168 void AliAnalysisTaskESDMuonFilter::AddFilteredAOD(const char* aodfilename, const char* title)
170 // Add an output filtered and replicated aod
172 AliAODHandler *aodH = (AliAODHandler*)((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler());
173 if (!aodH) Fatal("UserCreateOutputObjects", "No AOD handler");
175 AliAODExtension* ext = aodH->AddFilteredAOD(aodfilename,title);
182 AliAODMuonReplicator* murep = new AliAODMuonReplicator("MuonReplicator",
183 "remove non muon tracks and non primary or pileup vertices",
184 new AliAnalysisNonMuonTrackCuts,
185 new AliAnalysisNonPrimaryVertices,
188 ext->DropUnspecifiedBranches(); // all branches not part of a FilterBranch call (below) will be dropped
190 ext->FilterBranch("tracks",murep);
191 ext->FilterBranch("vertices",murep);
192 ext->FilterBranch("dimuons",murep);
196 // MC branches will be copied (if present), as they are, but only
197 // for events with at least one muon.
198 // For events w/o muon, mcparticles array will be empty and mcheader will be dummy
199 // (e.g. strlen(GetGeneratorName())==0)
201 ext->FilterBranch("mcparticles",murep);
202 ext->FilterBranch("mcHeader",murep);
207 //______________________________________________________________________________
208 void AliAnalysisTaskESDMuonFilter::Init()
211 if(fEnableMuonAOD) AddFilteredAOD("AliAOD.Muons.root", "MuonEvents");
212 if(fEnableDimuonAOD) AddFilteredAOD("AliAOD.Dimuons.root", "DimuonEvents");
216 //______________________________________________________________________________
217 void AliAnalysisTaskESDMuonFilter::UserExec(Option_t */*option*/)
219 // Execute analysis for current event
221 Long64_t ientry = Entry();
222 if(fDebug)printf("Muon Filter: Analysing event # %5d\n", (Int_t) ientry);
227 //______________________________________________________________________________
228 void AliAnalysisTaskESDMuonFilter::ConvertESDtoAOD()
230 // ESD Muon Filter analysis task executed for each event
232 AliCodeTimerAuto("",0);
234 AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent());
236 // Fetch Stack for debuggging if available
237 AliStack *pStack = 0;
238 AliMCEventHandler *mcH = 0;
240 pStack = MCEvent()->Stack();
241 mcH = (AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler());
244 // Define arrays for muons
249 // has to be changed once the muon pid is provided by the ESD
250 for (Int_t i = 0; i < 10; pid[i++] = 0.) {}
251 pid[AliAODTrack::kMuon]=1.;
253 AliAODHeader* header = AODEvent()->GetHeader();
254 AliAODTrack *aodTrack = 0x0;
255 AliESDMuonTrack *esdMuTrack = 0x0;
257 // Access to the AOD container of tracks
258 TClonesArray &tracks = *(AODEvent()->GetTracks());
259 Int_t jTracks = header->GetRefMultiplicity();
261 // Read primary vertex from AOD event
262 AliAODVertex *primary = AODEvent()->GetPrimaryVertex();
263 if(fDebug)primary->Print();
265 // Loop on muon tracks to fill the AOD track branch
266 Int_t nMuTracks = esd->GetNumberOfMuonTracks();
268 for (Int_t iTrack=0; iTrack<nMuTracks; ++iTrack) esd->GetMuonTrack(iTrack)->SetESDEvent(esd);
270 // Update number of positive and negative tracks from AOD event (M.G.)
271 Int_t nPosTracks = header->GetRefMultiplicityPos();
272 Int_t nNegTracks = header->GetRefMultiplicityNeg();
274 // Access to the AOD container of dimuons
275 TClonesArray &dimuons = *(AODEvent()->GetDimuons());
276 AliAODDimuon *aodDimuon = 0x0;
281 Int_t nMuonTrack[100];
283 for(int imuon=0;imuon<100;imuon++) nMuonTrack[imuon]=0;
285 for (Int_t nMuTrack = 0; nMuTrack < nMuTracks; ++nMuTrack)
287 esdMuTrack = esd->GetMuonTrack(nMuTrack);
289 if (!esdMuTrack->ContainTrackerData()) continue;
291 UInt_t selectInfo = 0;
294 selectInfo = fTrackFilter->IsSelected(esdMuTrack);
300 p[0] = esdMuTrack->Px();
301 p[1] = esdMuTrack->Py();
302 p[2] = esdMuTrack->Pz();
304 pos[0] = esdMuTrack->GetNonBendingCoor();
305 pos[1] = esdMuTrack->GetBendingCoor();
306 pos[2] = esdMuTrack->GetZ();
308 if(mcH)mcH->SelectParticle(esdMuTrack->GetLabel());
310 aodTrack = new(tracks[jTracks++]) AliAODTrack(esdMuTrack->GetUniqueID(), // ID
311 esdMuTrack->GetLabel(), // label
313 kTRUE, // cartesian coordinate system
316 0x0, // covariance matrix
317 esdMuTrack->Charge(), // charge
320 primary, // primary vertex
321 kFALSE, // used for vertex fit?
322 kFALSE, // used for primary vertex fit?
323 AliAODTrack::kPrimary,// track type
326 aodTrack->SetXYAtDCA(esdMuTrack->GetNonBendingCoorAtDCA(), esdMuTrack->GetBendingCoorAtDCA());
327 aodTrack->SetPxPyPzAtDCA(esdMuTrack->PxAtDCA(), esdMuTrack->PyAtDCA(), esdMuTrack->PzAtDCA());
328 aodTrack->SetRAtAbsorberEnd(esdMuTrack->GetRAtAbsorberEnd());
329 aodTrack->ConvertAliPIDtoAODPID();
330 aodTrack->SetChi2perNDF(esdMuTrack->GetChi2() / (2.*esdMuTrack->GetNHit() - 5.));
331 aodTrack->SetChi2MatchTrigger(esdMuTrack->GetChi2MatchTrigger());
332 aodTrack->SetHitsPatternInTrigCh(esdMuTrack->GetHitsPatternInTrigCh());
333 aodTrack->SetMuonClusterMap(esdMuTrack->GetMuonClusterMap());
334 aodTrack->SetMatchTrigger(esdMuTrack->GetMatchTrigger());
335 aodTrack->Connected(esdMuTrack->IsConnected());
336 primary->AddDaughter(aodTrack);
338 if (esdMuTrack->Charge() > 0) nPosTracks++;
341 nMuonTrack[nMuons]= jTracks-1.;
347 for(int i=0;i<nMuons;i++){
348 Int_t index0 = nMuonTrack[i];
349 for(int j=i+1;j<nMuons;j++){
350 Int_t index1 = nMuonTrack[j];
351 aodDimuon = new(dimuons[jDimuons++]) AliAODDimuon(tracks.At(index0),tracks.At(index1));
354 AliAODDimuon *dimuon0 = (AliAODDimuon*)dimuons.At(jDimuons-1);
355 printf("Dimuon: mass = %f, px=%f, py=%f, pz=%f\n",dimuon0->M(),dimuon0->Px(),dimuon0->Py(),dimuon0->Pz());
356 AliAODTrack *mu0 = (AliAODTrack*) dimuon0->GetMu(0);
357 AliAODTrack *mu1 = (AliAODTrack*) dimuon0->GetMu(1);
358 printf("Muon0 px=%f py=%f pz=%f\n",mu0->Px(),mu0->Py(),mu0->Pz());
359 printf("Muon1 px=%f py=%f pz=%f\n",mu1->Px(),mu1->Py(),mu1->Pz());
366 header->SetRefMultiplicity(jTracks);
367 header->SetRefMultiplicityPos(nPosTracks);
368 header->SetRefMultiplicityNeg(nNegTracks);
369 header->SetNumberOfMuons(nMuons);
370 header->SetNumberOfDimuons(nDimuons);
372 if ( fEnableMuonAOD && ( (nMuons>0) || fKeepAllEvents ) )
374 AliAODExtension *extMuons = dynamic_cast<AliAODHandler*>
375 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler())->GetFilteredAOD("AliAOD.Muons.root");
376 extMuons->SelectEvent();
379 if ( fEnableDimuonAOD && ( (nMuons>1) || fKeepAllEvents ) )
381 AliAODExtension *extDimuons = dynamic_cast<AliAODHandler*>
382 ((AliAnalysisManager::GetAnalysisManager())->GetOutputEventHandler())->GetFilteredAOD("AliAOD.Dimuons.root");
383 extDimuons->SelectEvent();
388 void AliAnalysisTaskESDMuonFilter::Terminate(Option_t */*option*/)
390 // Terminate analysis
392 if (fDebug > 1) printf("AnalysisESDfilter: Terminate() \n");
395 void AliAnalysisTaskESDMuonFilter::PrintMCInfo(AliStack *pStack,Int_t label)
399 label = TMath::Abs(label);
400 TParticle *part = pStack->Particle(label);
401 Printf("########################");
402 Printf("%s:%d %d UniqueID %d PDG %d P %3.3f",(char*)__FILE__,__LINE__,label,part->GetUniqueID(),part->GetPdgCode(),part->P());
404 TParticle* mother = part;
405 Int_t imo = part->GetFirstMother();
406 Int_t nprim = pStack->GetNprimary();
407 // while((imo >= nprim) && (mother->GetUniqueID() == 4)) {
408 while((imo >= nprim)) {
409 mother = pStack->Particle(imo);
410 Printf("Mother %s:%d Label %d UniqueID %d PDG %d P %3.3f",(char*)__FILE__,__LINE__,imo,mother->GetUniqueID(),mother->GetPdgCode(),mother->P());
412 imo = mother->GetFirstMother();
414 Printf("########################");