1 /**************************************************************************
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. *
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 **************************************************************************/
19 // Class AliHFEtaggedTrackAnalysis
20 // Analyses tracks with an apriori PID information (i.e. using the daugther
21 // tracks from well-identified decays of neutral charged particles). Tracks
22 // are processed in the Process function, where given tracks are filtered
23 // via the track cuts and used for PID later. The plugin fills Correction
24 // Framework containers and additional PID QA containers
27 // Markus Fasel <M.Fasel@gsi.de>
29 #include "AliCFCutBase.h"
30 #include "AliCFContainer.h"
31 #include "AliCFManager.h"
32 #include "AliESDtrack.h"
35 #include "AliExternalTrackParam.h"
37 #include "AliHFEcollection.h"
38 #include "AliHFEcontainer.h"
39 #include "AliHFEcuts.h"
40 #include "AliHFEpid.h"
41 #include "AliHFEpidTPC.h"
42 #include "AliHFEpidQAmanager.h"
43 #include "AliHFEtaggedTrackAnalysis.h"
44 #include "AliHFEvarManager.h"
46 ClassImp(AliHFEtaggedTrackAnalysis)
48 //____________________________________________________________
49 AliHFEtaggedTrackAnalysis::AliHFEtaggedTrackAnalysis():
60 , fVariablesTRD(kFALSE)
63 // Default constructor
65 fVarManager = new AliHFEvarManager("taggedTrackVarManager");
66 fVarManager->AddVariable("pt");
67 fVarManager->AddVariable("eta");
68 fVarManager->AddVariable("phi");
69 fVarManager->AddVariable("charge");
70 fVarManager->AddVariable("species");
71 fPIDqa = new AliHFEpidQAmanager;
72 fCFM = new AliCFManager;
73 SetBit(kIsOwner, kTRUE);
76 //____________________________________________________________
77 AliHFEtaggedTrackAnalysis::AliHFEtaggedTrackAnalysis(const AliHFEtaggedTrackAnalysis &ref):
79 , fVarManager(ref.fVarManager)
85 , fQAhistos(ref.fQAhistos)
87 , fMagneticField(ref.fMagneticField)
88 , fVariablesTRD(ref.fVariablesTRD)
96 SetBit(kIsOwner, kFALSE);
99 //____________________________________________________________
100 AliHFEtaggedTrackAnalysis &AliHFEtaggedTrackAnalysis::operator=(const AliHFEtaggedTrackAnalysis &ref){
102 // Assignment operator
105 fVarManager = ref.fVarManager;
110 fQAhistos = ref.fQAhistos;
112 fMagneticField = ref.fMagneticField;
113 fVariablesTRD = ref.fVariablesTRD;
115 if(ref.fContainer) InitContainer();
117 SetBit(kIsOwner, kFALSE);
118 SetBit(kIsOwnerCuts, kFALSE);
123 //____________________________________________________________
124 AliHFEtaggedTrackAnalysis::~AliHFEtaggedTrackAnalysis(){
128 if(TestBit(kIsOwner)){
129 if(fVarManager) delete fVarManager;
130 if(fPIDqa) delete fPIDqa;
132 if(TestBit(kIsOwnerCuts)) delete fCuts;
133 if(fContainer) delete fContainer;
136 //____________________________________________________________
137 void AliHFEtaggedTrackAnalysis::InitContainer(){
139 // Initialize output container
141 if(fContainer) return;
144 AliError("No PID set - defining container without PID steps");
146 nStepPID = fPID->GetNumberOfPIDdetectors();
148 fContainer = new AliHFEcontainer("containerV0");
149 fVarManager->DefineVariables(fContainer);
150 fContainer->CreateContainer("taggedTrackContainerReco", "Container for Tagged Tracks", AliHFEcuts::kNcutStepsRecTrack + nStepPID);
152 // Set the step titles
153 for(Int_t istep = 0; istep < AliHFEcuts::kNcutStepsRecTrack; istep++)
154 fContainer->SetStepTitle("taggedTrackContainerReco", AliHFEcuts::RecoCutName(istep), istep);
155 for(Int_t ipid = 0; ipid < nStepPID; ipid++){
156 fContainer->SetStepTitle("taggedTrackContainerReco", fPID->SortedDetectorName(ipid), ipid + AliHFEcuts::kNcutStepsRecTrack);
158 fCFM->SetParticleContainer(fContainer->GetCFContainer("taggedTrackContainerReco"));
160 // temporarily special QA
161 fQAhistos = new AliHFEcollection("taggedTrackQA", "Special QA for the TaggedTrackAnalysis");
162 fQAhistos->CreateTH2F("TPCclusters2_1", "TPCclusterInfo for findable clusters for 2 neighbors", 30, 0.1, 10., 162, 0., 161.);
163 fQAhistos->CreateTH2F("TPCclusters2_0", "TPCclusterInfo for the ratio for 2 neighbors", 30, 0.1, 10., 110, 0., 1.1);
164 fQAhistos->BinLogAxis("TPCclusters2_1", 0); // pt axis in logarithmic binning
165 fQAhistos->BinLogAxis("TPCclusters2_0", 0); // pt axis in logarithmic binning
168 //____________________________________________________________
169 void AliHFEtaggedTrackAnalysis::ProcessTrack(AliVParticle *track, Int_t abinitioPID){
171 // Filter tracks tagged by V0 PID class
174 fVarManager->NewTrack(track, NULL, 0., abinitioPID, kTRUE);
180 AliESDtrack *esdtrackc = dynamic_cast<AliESDtrack *>(track);
183 const AliExternalTrackParam *trueparam = NULL;
184 if(esdtrackc->GetOuterParam()) {
185 trueparam = esdtrackc->GetOuterParam();
186 fVarManager->NewTrack((AliVParticle *)trueparam, NULL, 0., abinitioPID, kTRUE);
193 // Try a loose cut to reject pion contamination
195 if(abinitioPID == AliPID::kElectron){
196 AliHFEpidTPC *pidTPC = (AliHFEpidTPC *) fPID->GetDetPID(AliHFEpid::kTPCpid);
198 Double_t numberOfSigmaTPC = pidTPC->NumberOfSigmas(track,AliPID::kElectron,AliHFEpidObject::kESDanalysis);
199 if(numberOfSigmaTPC < -5) return;
203 // temporarily monitoring of the number of TPC clusters
204 AliESDtrack *esdtrack = dynamic_cast<AliESDtrack *>(track);
205 if(esdtrack && abinitioPID == AliPID::kElectron){
206 if((esdtrack->GetITSClusterMap() & (BIT(0) | BIT(1))) && (TMath::Abs(esdtrack->Eta()) < 0.8)){ // Only select quasi-primary tracks
207 fQAhistos->Fill("TPCclusters2_1", track->Pt(), esdtrack->GetTPCClusterInfo(2,1));
208 fQAhistos->Fill("TPCclusters2_0", track->Pt(), esdtrack->GetTPCNclsF() > 0 ? esdtrack->GetTPCClusterInfo(2,1)/esdtrack->GetTPCNclsF() : 0.);
212 Int_t offset = AliHFEcuts::kStepRecKineITSTPC;
213 fVarManager->FillContainer(fCFM->GetParticleContainer(), 0); // Fill Container without filtering
215 Bool_t survived = kTRUE;
216 for(Int_t icut = AliHFEcuts::kStepRecKineITSTPC; icut <= AliHFEcuts::kStepHFEcutsTRD; icut++){
217 AliDebug(2, Form("Checking cut %d for species %s", icut + AliHFEcuts::kNcutStepsMCTrack, AliPID::ParticleName(abinitioPID)));
219 TObjArray *cutlist = fCFM->GetParticleCutsList(icut + AliHFEcuts::kNcutStepsMCTrack);
221 AliDebug(2, Form("No cuts for step %d set", icut + AliHFEcuts::kNcutStepsMCTrack));
223 AliDebug(2, Form("Cut Collection %s", cutlist->GetName()));
224 TIter cutiter(cutlist);
226 while((cut = dynamic_cast<AliCFCutBase *>(cutiter()))){
227 AliDebug(2, Form("Cut object %s, QA on? %s", cut->GetName(), cut->IsQAOn() ? "yes" : "no"));
231 //if(!fCFM->CheckParticleCuts(icut + AliHFEcuts::kNcutStepsMCTrack, (TObject *)track)){
232 if(!fCuts->CheckParticleCuts(icut + AliHFEcuts::kNcutStepsMCTrack, (TObject *)track)){
233 AliDebug(2, Form("Track didn' survive cut %d", icut + AliHFEcuts::kNcutStepsMCTrack));
237 AliDebug(2, Form("Cut passed, filling container %d", icut - offset + 1));
238 fVarManager->FillContainer(fCFM->GetParticleContainer(), icut - offset + 1);
242 AliDebug(2, "Use track in the PID");
244 AliHFEpidObject hfetrack;
245 hfetrack.SetAnalysisType(AliHFEpidObject::kESDanalysis);
246 hfetrack.SetRecTrack(track);
247 hfetrack.SetAbInitioPID(abinitioPID);
248 fPID->SetVarManager(fVarManager);
249 fPID->IsSelected(&hfetrack, fContainer, "taggedTrackContainer", fPIDqa);
253 //____________________________________________________________
254 void AliHFEtaggedTrackAnalysis::SetCuts(AliHFEcuts *cuts){
256 // Set HFE cuts to be used to filter the tagged tracks
259 AliWarning("Nob cuts provided - Using standard cuts");
260 fCuts = new AliHFEcuts("cutsTagged", "HFE Cuts for the V0 tagged tracks");
261 fCuts->CreateStandardCuts();
263 SetBit(kIsOwnerCuts);
265 AliDebug(1, "Setting single track cuts");
268 const Int_t kNcutSteps = AliHFEcuts::kNcutStepsMCTrack + AliHFEcuts::kNcutStepsRecTrack + AliHFEcuts::kNcutStepsDETrack;
269 printf("Setting Number of cut steps %d\n", kNcutSteps);
270 fCFM->SetNStepParticle(kNcutSteps);
271 for(Int_t istep = 0; istep < kNcutSteps; istep++)
272 fCFM->SetParticleCutsList(istep, NULL);
274 fCuts->Initialize(fCFM);
277 //____________________________________________________________
278 void AliHFEtaggedTrackAnalysis::SetPID(AliHFEpid *pid){
280 // Set the PID and initialize the the QA manager
283 fPIDqa->Initialize(fPID);
286 //____________________________________________________________
287 TList *AliHFEtaggedTrackAnalysis::GetPIDQA() const {
291 return fPIDqa->MakeList("PIDqa_taggedTracks");
294 //____________________________________________________________
295 TList *AliHFEtaggedTrackAnalysis::GetCutQA() const {
299 return fCuts->GetQAhistograms();