1 //DEFINITION OF A FEW CONSTANTS
2 const Double_t ymin = -1.0 ;
3 const Double_t ymax = 1.0 ;
4 const Double_t ptmin = 0.0 ;
5 const Double_t ptmax = 8.0 ;
6 const Int_t mintrackrefsTPC = 2 ;
7 const Int_t mintrackrefsITS = 3 ;
8 const Int_t charge = 1 ;
9 const Int_t PDG = 2212;
10 const Int_t minclustersTPC = 50 ;
11 //----------------------------------------------------
13 Bool_t AliCFSingleTrackTask(
14 const Bool_t useGrid = 1,
15 const Bool_t readAOD = 0,
16 const Bool_t readTPCTracks = 0,
17 const char * kTagXMLFile="wn.xml" // XML file containing tags
22 benchmark.Start("AliSingleTrackTask");
24 AliLog::SetGlobalDebugLevel(0);
26 Load() ; //load the required libraries
28 TChain * analysisChain ;
30 if (useGrid) { //data located on AliEn
31 TGrid::Connect("alien://") ; // Create an AliRunTagCuts and an AliEventTagCuts Object
32 // and impose some selection criteria
33 AliRunTagCuts *runCuts = new AliRunTagCuts();
34 AliEventTagCuts *eventCuts = new AliEventTagCuts();
35 AliLHCTagCuts *lhcCuts = new AliLHCTagCuts();
36 AliDetectorTagCuts *detCuts = new AliDetectorTagCuts();
37 eventCuts->SetMultiplicityRange(0,2000);
39 // Create an AliTagAnalysis Object and chain the tags
40 AliTagAnalysis *tagAna = new AliTagAnalysis();
41 if (readAOD) tagAna->SetType("AOD"); //for aliroot > v4-05
42 else tagAna->SetType("ESD"); //for aliroot > v4-05
43 TAlienCollection *coll = TAlienCollection::Open(kTagXMLFile);
44 TGridResult *tagResult = coll->GetGridResult("",0,0);
46 tagAna->ChainGridTags(tagResult);
48 // Create a new esd chain and assign the chain that is returned by querying the tags
49 analysisChain = tagAna->QueryTags(runCuts,lhcCuts,detCuts,eventCuts);
53 //here put your input data path
54 printf("\n\nRunning on local file, please check the path\n\n");
57 analysisChain = new TChain("aodTree");
58 analysisChain->Add("AliAOD.root");
61 analysisChain = new TChain("esdTree");
62 analysisChain->Add("AliESDs.root");
67 Info("AliCFSingleTrackTask",Form("CHAIN HAS %d ENTRIES",(Int_t)analysisChain->GetEntries()));
69 //CONTAINER DEFINITION
70 Info("AliCFSingleTrackTask","SETUP CONTAINER");
71 //the sensitive variables (2 in this example), their indices
74 //Setting up the container grid...
75 UInt_t nstep = 4 ; //number of selection steps MC
76 const Int_t nvar = 2 ; //number of variables on the grid:pt,y
77 const Int_t nbin1 = 8 ; //bins in pt
78 const Int_t nbin2 = 8 ; //bins in y
80 //arrays for the number of bins in each dimension
85 //arrays for lower bounds :
86 Double_t *binLim1=new Double_t[nbin1+1];
87 Double_t *binLim2=new Double_t[nbin2+1];
89 //values for bin lower bounds
90 for(Int_t i=0; i<=nbin1; i++) binLim1[i]=(Double_t)ptmin + (ptmax-ptmin)/nbin1*(Double_t)i ;
91 for(Int_t i=0; i<=nbin2; i++) binLim2[i]=(Double_t)ymin + (ymax-ymin) /nbin2*(Double_t)i ;
92 //one "container" for MC
93 AliCFContainer* container = new AliCFContainer("container","container for tracks",nstep,nvar,iBin);
94 //setting the bin limits
95 container -> SetBinLimits(ipt,binLim1);
96 container -> SetBinLimits(iy,binLim2);
99 // SET TLIST FOR QA HISTOS
100 TList* qaList = new TList();
102 //CREATE THE CUTS -----------------------------------------------
104 // Gen-Level kinematic cuts
105 AliCFTrackKineCuts *mcKineCuts = new AliCFTrackKineCuts("mcKineCuts","MC-level kinematic cuts");
106 mcKineCuts->SetPtRange(ptmin,ptmax);
107 mcKineCuts->SetRapidityRange(ymin,ymax);
108 mcKineCuts->SetChargeMC(charge);
109 mcKineCuts->SetQAOn(qaList);
111 //Particle-Level cuts:
112 AliCFParticleGenCuts* mcGenCuts = new AliCFParticleGenCuts("mcGenCuts","MC particle generation cuts");
113 mcGenCuts->SetRequireIsPrimary();
114 mcGenCuts->SetRequirePdgCode(PDG);
115 mcGenCuts->SetQAOn(qaList);
118 AliCFAcceptanceCuts *mcAccCuts = new AliCFAcceptanceCuts("mcAccCuts","MC acceptance cuts");
119 mcAccCuts->SetMinNHitITS(mintrackrefsITS);
120 mcAccCuts->SetMinNHitTPC(mintrackrefsTPC);
121 mcAccCuts->SetQAOn(qaList);
123 // Rec-Level kinematic cuts
124 AliCFTrackKineCuts *recKineCuts = new AliCFTrackKineCuts("recKineCuts","rec-level kine cuts");
125 recKineCuts->SetPtRange(ptmin,ptmax);
126 recKineCuts->SetRapidityRange(ymin,ymax);
127 recKineCuts->SetChargeRec(charge);
128 recKineCuts->SetQAOn(qaList);
130 AliCFTrackQualityCuts *recQualityCuts = new AliCFTrackQualityCuts("recQualityCuts","rec-level quality cuts");
131 recQualityCuts->SetMinNClusterTPC(minclustersTPC);
132 recQualityCuts->SetRequireITSRefit(kTRUE);
133 recQualityCuts->SetQAOn(qaList);
135 AliCFTrackIsPrimaryCuts *recIsPrimaryCuts = new AliCFTrackIsPrimaryCuts("recIsPrimaryCuts","rec-level isPrimary cuts");
136 recIsPrimaryCuts->SetMaxNSigmaToVertex(3);
137 recIsPrimaryCuts->SetQAOn(qaList);
139 AliCFTrackCutPid* cutPID = new AliCFTrackCutPid("cutPID","ESD_PID") ;
140 int n_species = AliPID::kSPECIES ;
141 Double_t* prior = new Double_t[n_species];
143 prior[0] = 0.0244519 ;
144 prior[1] = 0.0143988 ;
145 prior[2] = 0.805747 ;
146 prior[3] = 0.0928785 ;
147 prior[4] = 0.0625243 ;
149 cutPID->SetPriors(prior);
150 cutPID->SetProbabilityCut(0.0);
151 if (readTPCTracks) cutPID->SetDetectors("TPC");
152 else cutPID->SetDetectors("ALL");
153 if (readAOD) cutPID->SetAODmode(kTRUE );
154 else cutPID->SetAODmode(kFALSE);
155 switch(TMath::Abs(PDG)) {
156 case 11 : cutPID->SetParticleType(AliPID::kElectron, kTRUE); break;
157 case 13 : cutPID->SetParticleType(AliPID::kMuon , kTRUE); break;
158 case 211 : cutPID->SetParticleType(AliPID::kPion , kTRUE); break;
159 case 321 : cutPID->SetParticleType(AliPID::kKaon , kTRUE); break;
160 case 2212 : cutPID->SetParticleType(AliPID::kProton , kTRUE); break;
161 default : printf("UNDEFINED PID\n"); break;
163 cutPID->SetQAOn(qaList);
165 printf("CREATE MC KINE CUTS\n");
166 TObjArray* mcList = new TObjArray(0) ;
167 mcList->AddLast(mcKineCuts);
168 mcList->AddLast(mcGenCuts);
170 printf("CREATE ACCEPTANCE CUTS\n");
171 TObjArray* accList = new TObjArray(0) ;
172 accList->AddLast(mcAccCuts);
174 printf("CREATE RECONSTRUCTION CUTS\n");
175 TObjArray* recList = new TObjArray(0) ;
176 recList->AddLast(recKineCuts);
177 recList->AddLast(recQualityCuts);
178 recList->AddLast(recIsPrimaryCuts);
180 printf("CREATE PID CUTS\n");
181 TObjArray* fPIDCutList = new TObjArray(0) ;
182 fPIDCutList->AddLast(cutPID);
184 //CREATE THE INTERFACE TO CORRECTION FRAMEWORK USED IN THE TASK
185 printf("CREATE INTERFACE AND CUTS\n");
186 AliCFManager* man = new AliCFManager() ;
187 man->SetParticleContainer (container);
188 man->SetParticleCutsList(AliCFManager::kPartGenCuts,mcList);
189 man->SetParticleCutsList(AliCFManager::kPartAccCuts,accList);
190 man->SetParticleCutsList(AliCFManager::kPartRecCuts,recList);
191 man->SetParticleCutsList(AliCFManager::kPartSelCuts,fPIDCutList);
195 printf("CREATE TASK\n");
197 AliCFSingleTrackTask *task = new AliCFSingleTrackTask("AliSingleTrackTask");
198 task->SetCFManager(man); //here is set the CF manager
199 task->SetQAList(qaList);
200 if (readAOD) task->SetReadAODData() ;
201 if (readTPCTracks) task->SetReadTPCTracks();
203 //SETUP THE ANALYSIS MANAGER TO READ INPUT CHAIN AND WRITE DESIRED OUTPUTS
204 printf("CREATE ANALYSIS MANAGER\n");
205 // Make the analysis manager
206 AliAnalysisManager *mgr = new AliAnalysisManager("TestManager");
208 if (useGrid) mgr->SetAnalysisType(AliAnalysisManager::kGridAnalysis);
209 else mgr->SetAnalysisType(AliAnalysisManager::kLocalAnalysis);
212 AliMCEventHandler* mcHandler = new AliMCEventHandler();
213 mgr->SetMCtruthEventHandler(mcHandler);
215 AliInputEventHandler* dataHandler ;
217 if (readAOD) dataHandler = new AliAODInputHandler();
218 else dataHandler = new AliESDInputHandler();
219 mgr->SetInputEventHandler(dataHandler);
221 // Create and connect containers for input/output
223 //------ input data ------
224 AliAnalysisDataContainer *cinput0 = mgr->CreateContainer("cchain0",TChain::Class(),AliAnalysisManager::kInputContainer);
226 // ----- output data -----
228 //slot 0 : default output tree (by default handled by AliAnalysisTaskSE)
229 AliAnalysisDataContainer *coutput0 = mgr->CreateContainer("ctree0", TTree::Class(),AliAnalysisManager::kOutputContainer,"output.root");
231 //now comes user's output objects :
233 // output TH1I for event counting
234 AliAnalysisDataContainer *coutput1 = mgr->CreateContainer("chist0", TH1I::Class(),AliAnalysisManager::kOutputContainer,"output.root");
235 // output Correction Framework Container (for acceptance & efficiency calculations)
236 AliAnalysisDataContainer *coutput2 = mgr->CreateContainer("ccontainer0", AliCFContainer::Class(),AliAnalysisManager::kOutputContainer,"output.root");
237 // output QA histograms
238 AliAnalysisDataContainer *coutput3 = mgr->CreateContainer("clist0", TList::Class(),AliAnalysisManager::kOutputContainer,"output.root");
240 cinput0->SetData(analysisChain);
243 mgr->ConnectInput(task,0,cinput0);
244 mgr->ConnectOutput(task,0,coutput0);
245 mgr->ConnectOutput(task,1,coutput1);
246 mgr->ConnectOutput(task,2,coutput2);
247 mgr->ConnectOutput(task,3,coutput3);
249 printf("READY TO RUN\n");
251 if (mgr->InitAnalysis()) {
253 mgr->StartAnalysis("local",analysisChain);
256 benchmark.Stop("AliSingleTrackTask");
257 benchmark.Show("AliSingleTrackTask");
264 //load the required aliroot libraries
265 gSystem->Load("libANALYSIS") ;
266 gSystem->Load("libANALYSISalice") ;
267 gSystem->Load("libCORRFW.so") ;
269 //compile online the task class
270 gSystem->SetIncludePath("-I. -I$ALICE_ROOT/include -I$ALICE_ROOT/TPC -I$ROOTSYS/include");
271 gROOT->LoadMacro("./AliCFSingleTrackTask.cxx+");