PWG3/AliAnalysisVertexingHFTest.C

   1 //--------------------------------------------------------------------------
   2 // Test macro for reconstruction of heavy-flavour vertexing candidates
   3 //
   4 //     Andrea Dainese, andrea.dainese@lnl.infn.it
   5 //--------------------------------------------------------------------------
   6
   7 void AliAnalysisVertexingHFTest(Int_t evFirst=0,
   8                                 Int_t evLast=99,
   9                                 TString infile="AliESDs.root",
  10                                 TString outfile="VertexingHF.root") {
  11
  12   gSystem->Load("libAOD.so");
  13   gSystem->Load("libPWG3base.so");
  14
  15   AliAnalysisVertexingHF *vHF = new AliAnalysisVertexingHF();
  16   //--- switch-off candidates finding (default: all on)
  17   //vHF->SetD0toKpiOff();
  18   //vHF->SetJPSItoEleOff();
  19   //vHF->Set3ProngOff();
  20   //vHF->Set4ProngOff();
  21   //--- set cuts for single-track selection
  22   vHF->SetITSrefitRequired();
  23   vHF->SetBothSPDNotRequired();
  24   vHF->SetMinITSCls(5);
  25   vHF->SetMinPtCut(0.);
  26   vHF->SetMind0Cut(0.);
  27   //--- set cuts for candidates selection
  28   //vHF->SetD0toKpiCuts();
  29   //vHF->SetBtoJPSICuts();
  30   //vHF->SetDplusCuts();
  31   //--- set this if you want to reconstruct primary vertex candidate by
  32   //    candidate using other tracks in the event (for pp, broad
  33   //    interaction region)
  34   //vHF->SetRecoPrimVtxSkippingTrks();
  35   //--- OR set this if you want to remove the candidate daughters from
  36   //    the primary vertex, without recostructing it from scratch
  37   //vHF->SetRmTrksFromPrimVtx();
  38
  39   //--- check the settings
  40   vHF->PrintStatus();
  41   //--- verbose
  42   vHF->SetDebug(1);
  43
  44   TTree *trees = new TTree[4];
  45   AliAODRecoDecayHF2Prong *rd2=0;
  46   AliAODRecoDecayHF3Prong *rd3=0;
  47   AliAODRecoDecayHF4Prong *rd4=0;
  48   trees[0].Branch("D0toKpi","AliAODRecoDecayHF2Prong",&rd2);
  49   trees[1].Branch("JPSItoEle","AliAODRecoDecayHF2Prong",&rd2);
  50   trees[2].Branch("Charmto3Prong","AliAODRecoDecayHF3Prong",&rd3);
  51   trees[3].Branch("D0to4Prong","AliAODRecoDecayHF4Prong",&rd4);
  52
  53   TFile *inesd = new TFile(infile.Data());
  54   AliESDEvent *esd = new AliESDEvent();
  55   TTree *esdTree = (TTree*)inesd->Get("esdTree");
  56   esd->ReadFromTree(esdTree);
  57
  58   if(esdTree->GetEntries()<evLast) evLast=esdTree->GetEntries()-1;
  59   for(Int_t i=evFirst; i<=evLast; i++) {
  60     esdTree->GetEvent(i);
  61     vHF->FindCandidates(esd,trees);
  62     //if(i==evLast) i=evFirst;
  63   }
  64
  65   delete esdTree;
  66   inesd->Close();
  67   delete inesd;
  68
  69   // Write trees with candidates
  70   TFile *fout = new TFile("AliAnalysisVertexingHF.root","recreate");
  71   trees[0].Write("TreeD0toKpi");
  72   trees[1].Write("TreeJPSItoEle");
  73   trees[2].Write("TreeCharm3Prong");
  74   trees[3].Write("TreeD0to4Prong");
  75   fout->Close();
  76   delete fout;
  77
  78   return;
  79 }