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 char * kTagXMLFile="wn.xml", // XML file containing tags
16 Long64_t nentries=TChain::kBigNumber
21 benchmark.Start("AliSingleTrackTask");
23 AliLog::SetGlobalDebugLevel(0);
25 Load() ; //load the required libraries
27 TChain * analysisChain ;
29 if (useGrid) { //data located on AliEn
30 TGrid::Connect("alien://") ; // Create an AliRunTagCuts and an AliEventTagCuts Object and impose some selection criteria
31 AliRunTagCuts *runCuts = new AliRunTagCuts();
32 AliEventTagCuts *eventCuts = new AliEventTagCuts();
33 AliLHCTagCuts *lhcCuts = new AliLHCTagCuts();
34 AliDetectorTagCuts *detCuts = new AliDetectorTagCuts();
35 eventCuts->SetMultiplicityRange(0,20000);
36 // Create an AliTagAnalysis Object and chain the tags
37 AliTagAnalysis *tagAna = new AliTagAnalysis();
38 tagAna->SetType("ESD"); //for aliroot > v4-05
39 TAlienCollection *coll = TAlienCollection::Open(kTagXMLFile);
40 TGridResult *tagResult = coll->GetGridResult("",0,0);
42 tagAna->ChainGridTags(tagResult);
43 // Create a new esd chain and assign the chain that is returned by querying the tags
44 analysisChain = tagAna->QueryTags(runCuts,lhcCuts,detCuts,eventCuts);
47 analysisChain = new TChain("esdTree");
48 //here put your input data path
49 analysisChain->Add("AliESDs.root");
53 Info("AliCFSingleTrackTask",Form("CHAIN HAS %d ENTRIES",(Int_t)analysisChain->GetEntries()));
55 //CONTAINER DEFINITION
56 Info("AliCFSingleTrackTask","SETUP CONTAINER");
57 //the sensitive variables (2 in this example), their indices
60 //Setting up the container grid...
61 Int_t nstep = 4 ; //number of selection steps MC
62 const Int_t nvar = 2 ; //number of variables on the grid:pt,y
63 const Int_t nbin1 = 8 ; //bins in pt
64 const Int_t nbin2 = 8 ; //bins in y
65 //arrays for the number of bins in each dimension
66 const Int_t iBin[nvar] ={nbin1,nbin2};
67 //arrays for lower bounds :
68 Double_t binLim1[nbin1+1];
69 Double_t binLim2[nbin2+1];
70 //values for bin lower bounds
71 for(Int_t i=0; i<=nbin1; i++) binLim1[i]=(Double_t)ptmin + (ptmax-ptmin)/nbin1*(Double_t)i ;
72 for(Int_t i=0; i<=nbin2; i++) binLim2[i]=(Double_t)ymin + (ymax-ymin) /nbin2*(Double_t)i ;
73 //one "container" for MC
74 AliCFContainer* container = new AliCFContainer("container","container for tracks",nstep,nvar,iBin);
75 //setting the bin limits
76 container -> SetBinLimits(ipt,binLim1);
77 container -> SetBinLimits(iy,binLim2);
80 //CREATE THE CUTS -----------------------------------------------
81 //Particle-Level cuts:
83 // Gen-Level kinematic cuts
84 AliCFTrackKineCuts *mcKineCuts = new AliCFTrackKineCuts("mcKineCuts","MC-level kinematic cuts");
85 mcKineCuts->SetPtRange(ptmin,ptmax);
86 mcKineCuts->SetRapidityRange(ymin,ymax);
87 mcKineCuts->SetChargeMC(charge);
89 AliCFParticleGenCuts* mcGenCuts = new AliCFParticleGenCuts("mcGenCuts","MC particle generation cuts");
90 mcGenCuts->SetRequireIsPrimary();
91 mcGenCuts->SetRequirePdgCode(PDG);
94 AliCFAcceptanceCuts *mcAccCuts = new AliCFAcceptanceCuts("mcAccCuts","MC acceptance cuts");
95 mcAccCuts->SetMinNHitITS(mintrackrefsITS);
96 mcAccCuts->SetMinNHitTPC(mintrackrefsTPC);
98 // Rec-Level kinematic cuts
99 AliCFTrackKineCuts *recKineCuts = new AliCFTrackKineCuts("recKineCuts","rec-level kine cuts");
100 recKineCuts->SetPtRange(ptmin,ptmax);
101 recKineCuts->SetRapidityRange(ymin,ymax);
102 recKineCuts->SetChargeRec(charge);
103 // QA histograms for rec-level kinematic cuts
104 recKineCuts->SetQAOn(kTRUE);
106 AliCFTrackQualityCuts *recQualityCuts = new AliCFTrackQualityCuts("recQualityCuts","rec-level quality cuts");
107 recQualityCuts->SetMinNClusterTPC(minclustersTPC);
108 recQualityCuts->SetRequireITSRefit(kTRUE);
109 // QA histograms for rec-level quality cuts
110 recQualityCuts->SetQAOn(kTRUE);
112 AliCFTrackIsPrimaryCuts *recIsPrimaryCuts = new AliCFTrackIsPrimaryCuts("recIsPrimaryCuts","rec-level isPrimary cuts");
113 recIsPrimaryCuts->SetMaxNSigmaToVertex(3);
114 // QA histograms for rec-level primary-check cuts
115 recIsPrimaryCuts->SetQAOn(kTRUE);
117 AliCFTrackCutPid* cutPID = new AliCFTrackCutPid("cutPID","ESD_PID") ;
118 Double_t prior[AliPID::kSPECIES] = {0.0244519,
123 cutPID->SetPriors(prior);
124 cutPID->SetProbabilityCut(0.0);
125 cutPID->SetDetectors("TPC TOF");
126 switch(TMath::Abs(PDG)) {
127 case 11 : cutPID->SetParticleType(AliPID::kElectron, kTRUE); break;
128 case 13 : cutPID->SetParticleType(AliPID::kMuon , kTRUE); break;
129 case 211 : cutPID->SetParticleType(AliPID::kPion , kTRUE); break;
130 case 321 : cutPID->SetParticleType(AliPID::kKaon , kTRUE); break;
131 case 2212 : cutPID->SetParticleType(AliPID::kProton , kTRUE); break;
132 default : printf("UNDEFINED PID\n"); break;
134 cutPID->SetQAOn(kTRUE);
136 printf("CREATE MC KINE CUTS\n");
137 TObjArray* mcList = new TObjArray(0) ;
138 mcList->AddLast(mcKineCuts);
139 mcList->AddLast(mcGenCuts);
141 printf("CREATE ACCEPTANCE CUTS\n");
142 TObjArray* accList = new TObjArray(0) ;
143 accList->AddLast(mcAccCuts);
145 printf("CREATE RECONSTRUCTION CUTS\n");
146 TObjArray* recList = new TObjArray(0) ;
147 recList->AddLast(recKineCuts);
148 recList->AddLast(recQualityCuts);
149 recList->AddLast(recIsPrimaryCuts);
151 printf("CREATE PID CUTS\n");
152 TObjArray* fPIDCutList = new TObjArray(0) ;
153 fPIDCutList->AddLast(cutPID);
156 //CREATE THE INTERFACE TO CORRECTION FRAMEWORK USED IN THE TASK
157 printf("CREATE INTERFACE AND CUTS\n");
158 AliCFManager* man = new AliCFManager() ;
159 man->SetParticleContainer (container);
160 man->SetParticleCutsList(AliCFManager::kPartGenCuts,mcList);
161 man->SetParticleCutsList(AliCFManager::kPartAccCuts,accList);
162 man->SetParticleCutsList(AliCFManager::kPartRecCuts,recList);
163 man->SetParticleCutsList(AliCFManager::kPartSelCuts,fPIDCutList);
167 printf("CREATE TASK\n");
169 AliCFSingleTrackTask *task = new AliCFSingleTrackTask("AliSingleTrackTask");
170 task->SetCFManager(man); //here is set the CF manager
173 //SETUP THE ANALYSIS MANAGER TO READ INPUT CHAIN AND WRITE DESIRED OUTPUTS
174 printf("CREATE ANALYSIS MANAGER\n");
175 // Make the analysis manager
176 AliAnalysisManager *mgr = new AliAnalysisManager("TestManager");
178 // Create and connect containers for input/output
181 AliAnalysisDataContainer *cinput0 = mgr->CreateContainer("cchain0",TChain::Class(),AliAnalysisManager::kInputContainer);
182 // output histo (number of events processed)
183 AliAnalysisDataContainer *coutput0 = mgr->CreateContainer("chist0", TH1I::Class(),AliAnalysisManager::kOutputContainer,"output.root");
184 // output Correction Framework Container (for acceptance & efficiency calculations)
185 AliAnalysisDataContainer *coutput1 = mgr->CreateContainer("ccontainer0", AliCFContainer::Class(),AliAnalysisManager::kOutputContainer,"output.root");
186 // output QA histograms
187 AliAnalysisDataContainer *coutput2 = mgr->CreateContainer("clist0", TList::Class(),AliAnalysisManager::kOutputContainer,"output.root");
190 mgr->ConnectInput(task,0,cinput0);
191 mgr->ConnectOutput(task,0,coutput0);
192 mgr->ConnectOutput(task,1,coutput1);
193 mgr->ConnectOutput(task,2,coutput2);
194 cinput0->SetData(analysisChain);
196 //NEW INTERFACE TO MC INFORMATION
197 AliMCEventHandler* mcHandler = new AliMCEventHandler();
198 mgr->SetMCtruthEventHandler(mcHandler);
200 printf("READY TO RUN\n");
202 if (mgr->InitAnalysis()) {
204 mgr->StartAnalysis("local",analysisChain);
207 benchmark.Stop("AliSingleTrackTask");
208 benchmark.Show("AliSingleTrackTask");
214 //remove this file which can cause problems
215 gSystem->Exec("rm $ALICE_ROOT/ANALYSIS/AliAnalysisSelector_cxx.so");
217 //load the required aliroot libraries
218 gSystem->Load("libANALYSIS") ;
219 gSystem->Load("libANALYSISRL") ;
220 gSystem->Load("$ALICE_ROOT/CORRFW/libCORRFW.so") ;
222 //compile online the task class
223 gSystem->SetIncludePath("-I. -I$ALICE_ROOT/include -I$ROOTSYS/include");
224 gROOT->LoadMacro("./AliCFSingleTrackTask.cxx+");