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
20 benchmark.Start("AliSingleTrackTask");
22 AliLog::SetGlobalDebugLevel(0);
24 Load() ; //load the required libraries
26 TChain * analysisChain ;
28 if (useGrid) { //data located on AliEn
29 TGrid::Connect("alien://") ; // Create an AliRunTagCuts and an AliEventTagCuts Object
30 // 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(0,2000);
37 // Create an AliTagAnalysis Object and chain the tags
38 AliTagAnalysis *tagAna = new AliTagAnalysis();
39 tagAna->SetType("ESD"); //for aliroot > v4-05
40 TAlienCollection *coll = TAlienCollection::Open(kTagXMLFile);
41 TGridResult *tagResult = coll->GetGridResult("",0,0);
43 tagAna->ChainGridTags(tagResult);
45 // Create a new esd chain and assign the chain that is returned by querying the tags
46 analysisChain = tagAna->QueryTags(runCuts,lhcCuts,detCuts,eventCuts);
50 analysisChain = new TChain("esdTree");
51 //here put your input data path
52 printf("\n\nRunning on local file, please check the path\n\n");
53 analysisChain->Add("AliESDs.root");
57 Info("AliCFSingleTrackTask",Form("CHAIN HAS %d ENTRIES",(Int_t)analysisChain->GetEntries()));
59 //CONTAINER DEFINITION
60 Info("AliCFSingleTrackTask","SETUP CONTAINER");
61 //the sensitive variables (2 in this example), their indices
64 //Setting up the container grid...
65 UInt_t nstep = 4 ; //number of selection steps MC
66 const Int_t nvar = 2 ; //number of variables on the grid:pt,y
67 const Int_t nbin1 = 8 ; //bins in pt
68 const Int_t nbin2 = 8 ; //bins in y
70 //arrays for the number of bins in each dimension
75 //arrays for lower bounds :
76 Double_t *binLim1=new Double_t[nbin1+1];
77 Double_t *binLim2=new Double_t[nbin2+1];
79 //values for bin lower bounds
80 for(Int_t i=0; i<=nbin1; i++) binLim1[i]=(Double_t)ptmin + (ptmax-ptmin)/nbin1*(Double_t)i ;
81 for(Int_t i=0; i<=nbin2; i++) binLim2[i]=(Double_t)ymin + (ymax-ymin) /nbin2*(Double_t)i ;
82 //one "container" for MC
83 AliCFContainer* container = new AliCFContainer("container","container for tracks",nstep,nvar,iBin);
84 //setting the bin limits
85 container -> SetBinLimits(ipt,binLim1);
86 container -> SetBinLimits(iy,binLim2);
89 // SET TLIST FOR QA HISTOS
90 TList* qaList = new TList();
92 //CREATE THE CUTS -----------------------------------------------
94 // Gen-Level kinematic cuts
95 AliCFTrackKineCuts *mcKineCuts = new AliCFTrackKineCuts("mcKineCuts","MC-level kinematic cuts");
96 mcKineCuts->SetPtRange(ptmin,ptmax);
97 mcKineCuts->SetRapidityRange(ymin,ymax);
98 mcKineCuts->SetChargeMC(charge);
99 mcKineCuts->SetQAOn(qaList);
101 //Particle-Level cuts:
102 AliCFParticleGenCuts* mcGenCuts = new AliCFParticleGenCuts("mcGenCuts","MC particle generation cuts");
103 mcGenCuts->SetRequireIsPrimary();
104 mcGenCuts->SetRequirePdgCode(PDG);
105 mcGenCuts->SetQAOn(qaList);
108 AliCFAcceptanceCuts *mcAccCuts = new AliCFAcceptanceCuts("mcAccCuts","MC acceptance cuts");
109 mcAccCuts->SetMinNHitITS(mintrackrefsITS);
110 mcAccCuts->SetMinNHitTPC(mintrackrefsTPC);
111 mcAccCuts->SetQAOn(qaList);
113 // Rec-Level kinematic cuts
114 AliCFTrackKineCuts *recKineCuts = new AliCFTrackKineCuts("recKineCuts","rec-level kine cuts");
115 recKineCuts->SetPtRange(ptmin,ptmax);
116 recKineCuts->SetRapidityRange(ymin,ymax);
117 recKineCuts->SetChargeRec(charge);
118 recKineCuts->SetQAOn(qaList);
120 AliCFTrackQualityCuts *recQualityCuts = new AliCFTrackQualityCuts("recQualityCuts","rec-level quality cuts");
121 recQualityCuts->SetMinNClusterTPC(minclustersTPC);
122 recQualityCuts->SetRequireITSRefit(kTRUE);
123 recQualityCuts->SetQAOn(qaList);
125 AliCFTrackIsPrimaryCuts *recIsPrimaryCuts = new AliCFTrackIsPrimaryCuts("recIsPrimaryCuts","rec-level isPrimary cuts");
126 recIsPrimaryCuts->SetMaxNSigmaToVertex(3);
127 recIsPrimaryCuts->SetQAOn(qaList);
129 AliCFTrackCutPid* cutPID = new AliCFTrackCutPid("cutPID","ESD_PID") ;
130 int n_species = AliPID::kSPECIES ;
131 Double_t* prior = new Double_t[n_species];
133 prior[0] = 0.0244519 ;
134 prior[1] = 0.0143988 ;
135 prior[2] = 0.805747 ;
136 prior[3] = 0.0928785 ;
137 prior[4] = 0.0625243 ;
139 cutPID->SetPriors(prior);
140 cutPID->SetProbabilityCut(0.0);
141 cutPID->SetDetectors("TPC TOF");
142 switch(TMath::Abs(PDG)) {
143 case 11 : cutPID->SetParticleType(AliPID::kElectron, kTRUE); break;
144 case 13 : cutPID->SetParticleType(AliPID::kMuon , kTRUE); break;
145 case 211 : cutPID->SetParticleType(AliPID::kPion , kTRUE); break;
146 case 321 : cutPID->SetParticleType(AliPID::kKaon , kTRUE); break;
147 case 2212 : cutPID->SetParticleType(AliPID::kProton , kTRUE); break;
148 default : printf("UNDEFINED PID\n"); break;
150 cutPID->SetQAOn(qaList);
152 printf("CREATE MC KINE CUTS\n");
153 TObjArray* mcList = new TObjArray(0) ;
154 mcList->AddLast(mcKineCuts);
155 mcList->AddLast(mcGenCuts);
157 printf("CREATE ACCEPTANCE CUTS\n");
158 TObjArray* accList = new TObjArray(0) ;
159 accList->AddLast(mcAccCuts);
161 printf("CREATE RECONSTRUCTION CUTS\n");
162 TObjArray* recList = new TObjArray(0) ;
163 recList->AddLast(recKineCuts);
164 recList->AddLast(recQualityCuts);
165 recList->AddLast(recIsPrimaryCuts);
167 printf("CREATE PID CUTS\n");
168 TObjArray* fPIDCutList = new TObjArray(0) ;
169 fPIDCutList->AddLast(cutPID);
171 //CREATE THE INTERFACE TO CORRECTION FRAMEWORK USED IN THE TASK
172 printf("CREATE INTERFACE AND CUTS\n");
173 AliCFManager* man = new AliCFManager() ;
174 man->SetParticleContainer (container);
175 man->SetParticleCutsList(AliCFManager::kPartGenCuts,mcList);
176 man->SetParticleCutsList(AliCFManager::kPartAccCuts,accList);
177 man->SetParticleCutsList(AliCFManager::kPartRecCuts,recList);
178 man->SetParticleCutsList(AliCFManager::kPartSelCuts,fPIDCutList);
182 printf("CREATE TASK\n");
184 AliCFSingleTrackTask *task = new AliCFSingleTrackTask("AliSingleTrackTask");
185 task->SetCFManager(man); //here is set the CF manager
186 task->SetQAList(qaList);
188 //SETUP THE ANALYSIS MANAGER TO READ INPUT CHAIN AND WRITE DESIRED OUTPUTS
189 printf("CREATE ANALYSIS MANAGER\n");
190 // Make the analysis manager
191 AliAnalysisManager *mgr = new AliAnalysisManager("TestManager");
193 if (useGrid) mgr->SetAnalysisType(AliAnalysisManager::kGridAnalysis);
194 else mgr->SetAnalysisType(AliAnalysisManager::kLocalAnalysis);
196 AliMCEventHandler* mcHandler = new AliMCEventHandler();
197 AliESDInputHandler* esdHandler = new AliESDInputHandler();
198 mgr->SetMCtruthEventHandler(mcHandler);
199 mgr->SetInputEventHandler(esdHandler);
201 // Create and connect containers for input/output
203 //------ input data ------
204 AliAnalysisDataContainer *cinput0 = mgr->CreateContainer("cchain0",TChain::Class(),AliAnalysisManager::kInputContainer);
206 // ----- output data -----
208 //slot 0 : default output tree (by default handled by AliAnalysisTaskSE)
209 AliAnalysisDataContainer *coutput0 = mgr->CreateContainer("ctree0", TTree::Class(),AliAnalysisManager::kOutputContainer,"output.root");
211 //now comes user's output objects :
213 // output TH1I for event counting
214 AliAnalysisDataContainer *coutput1 = mgr->CreateContainer("chist0", TH1I::Class(),AliAnalysisManager::kOutputContainer,"output.root");
215 // output Correction Framework Container (for acceptance & efficiency calculations)
216 AliAnalysisDataContainer *coutput2 = mgr->CreateContainer("ccontainer0", AliCFContainer::Class(),AliAnalysisManager::kOutputContainer,"output.root");
217 // output QA histograms
218 AliAnalysisDataContainer *coutput3 = mgr->CreateContainer("clist0", TList::Class(),AliAnalysisManager::kOutputContainer,"output.root");
220 cinput0->SetData(analysisChain);
223 mgr->ConnectInput(task,0,cinput0);
224 mgr->ConnectOutput(task,0,coutput0);
225 mgr->ConnectOutput(task,1,coutput1);
226 mgr->ConnectOutput(task,2,coutput2);
227 mgr->ConnectOutput(task,3,coutput3);
229 printf("READY TO RUN\n");
231 if (mgr->InitAnalysis()) {
233 mgr->StartAnalysis("local",analysisChain);
236 benchmark.Stop("AliSingleTrackTask");
237 benchmark.Show("AliSingleTrackTask");
244 //load the required aliroot libraries
245 gSystem->Load("libANALYSIS") ;
246 gSystem->Load("libANALYSISalice") ;
247 gSystem->Load("libCORRFW.so") ;
249 //compile online the task class
250 gSystem->SetIncludePath("-I. -I$ALICE_ROOT/include -I$ROOTSYS/include");
251 gROOT->LoadMacro("./AliCFSingleTrackTask.cxx+");