PWG4/macros/ConfigAnalysisGammaPartonCorrelation.C

   1 /* $Id: $ */
   2
   3 //------------------------------------
   4 // Configuration macro example:
   5 //
   6 // Do prompt photon - parton correlation analysis with ESDs
   7 // First find photons with AliAnaPhoton, then
   8 // isolate them with AliAnaParticleIsolation and finally correlate
   9 // them with AliAnaParticlePartonCorrelation
  10 //
  11 // Author : Gustavo Conesa Balbastre (INFN-LNF)
  12 //------------------------------------
  13
  14 AliAnaPartCorrMaker*  ConfigAnalysis()
  15 {
  16         //
  17         // Configuration goes here
  18         //
  19         printf("======================== \n");
  20         printf("ConfigAnalysis() \n");
  21         printf("======================== \n");
  22
  23
  24         //Detector Fiducial Cuts
  25         AliFiducialCut * fidCut = new AliFiducialCut();
  26         fidCut->DoCTSFiducialCut(kTRUE) ;
  27         fidCut->DoEMCALFiducialCut(kTRUE) ;
  28         fidCut->DoPHOSFiducialCut(kTRUE) ;
  29
  30         fidCut->SetSimpleCTSFiducialCut(0.9,0.,360.);
  31         fidCut->SetSimpleEMCALFiducialCut(0.7,80.,190.);
  32         fidCut->SetSimplePHOSFiducialCut(0.13,220.,320.);
  33
  34         fidCut->Print("");
  35
  36         //-----------------------------------------------------------
  37         // Reader
  38         //-----------------------------------------------------------
  39         AliCaloTrackESDReader *reader = new AliCaloTrackESDReader();
  40         reader->SetDebug(-1);
  41
  42         //Switch on or off the detectors information that you want
  43         reader->SwitchOnEMCAL();
  44         reader->SwitchOnCTS();
  45         reader->SwitchOnPHOS();
  46
  47         //Min particle pT
  48         reader->SetEMCALPtMin(0.5);
  49         reader->SetPHOSPtMin(0.5);
  50         reader->SetCTSPtMin(0.2);
  51
  52         reader->SetFiducialCut(fidCut);
  53         reader->Print("");
  54
  55
  56         //---------------------------------------------------------------------
  57         // Analysis algorithm
  58         //---------------------------------------------------------------------
  59         //<<<< first analysis >>> select the photons
  60         //Detector Fiducial Cuts for analysis part
  61         AliFiducialCut * fidCut2 = new AliFiducialCut();
  62         fidCut2->DoCTSFiducialCut(kFALSE) ;
  63         fidCut2->DoEMCALFiducialCut(kTRUE) ;
  64         fidCut2->DoPHOSFiducialCut(kFALSE) ;
  65
  66         fidCut2->SetSimpleCTSFiducialCut(0.9,0.,360.);
  67         fidCut2->SetSimpleEMCALFiducialCut(0.7,80.,190.);
  68         fidCut2->SetSimplePHOSFiducialCut(0.13,220.,320.);
  69         fidCut2->Print("");
  70
  71         AliCaloPID * pid = new AliCaloPID();
  72         // use selection with simple weights
  73         pid->SetPHOSPhotonWeight(0.7);    pid->SetPHOSPi0Weight(0.7);
  74         pid->SetEMCALPhotonWeight(0.7);    pid->SetEMCALPi0Weight(0.7);
  75
  76         pid->Print("");
  77
  78         AliAnaPhoton *anaphoton = new AliAnaPhoton();
  79         anaphoton->SetDebug(-1); //10 for lots of messages
  80         anaphoton->SetMinPt(0.2);
  81         anaphoton->SetMinDistanceToBadChannel(2, 4, 5);
  82         anaphoton->SetCaloPID(pid);
  83         anaphoton->SetFiducialCut(fidCut2); //More acceptance selections if needed at this level
  84         anaphoton->SetCalorimeter("PHOS");
  85         anaphoton->SwitchOffDataMC() ;//Access MC stack and fill more histograms
  86         anaphoton->SwitchOnCaloPID();
  87         anaphoton->SwitchOffCaloPIDRecalculation(); //recommended for EMCAL
  88         anaphoton->SwitchOnFiducialCut();
  89         anaphoton->SetOutputAODName("Photons");
  90         anaphoton->SetOutputAODClassName("AliAODPWG4ParticleCorrelation");
  91         //Set Histrograms bins and ranges
  92         //      anaphoton->SetHistoPtRangeAndNBins(0, 50, 100) ;
  93         //      anaphoton->SetHistoPhiRangeAndNBins(0, TMath::TwoPi(), 100) ;
  94         //      anaphoton->SetHistoEtaRangeAndNBins(-0.7, 0.7, 100) ;
  95         anaphoton->Print("");
  96
  97         // >>>> Second Analysis <<<< Isolate the photons
  98         AliIsolationCut * ic = new AliIsolationCut();
  99         ic->SetConeSize(0.5);
 100         ic->SetPtThreshold(1.);
 101         ic->SetICMethod(AliIsolationCut::kPtThresIC);
 102         ic->Print("");
 103
 104         AliAnaParticleIsolation *anaisol = new AliAnaParticleIsolation();
 105         anaisol->SetDebug(-1);
 106         anaisol->SetMinPt(5);
 107         anaisol->SetInputAODName("Photons");
 108         anaisol->SetCalorimeter("PHOS");
 109         anaisol->SwitchOffDataMC() ;//Access MC stack and fill more histograms
 110         //Select clusters with no pair, if both clusters with pi0 mass
 111         anaisol->SwitchOffInvariantMass();
 112         //anaisol->SetNeutralMesonSelection(nms);
 113         //Do isolation cut
 114         anaisol->SetIsolationCut(ic);
 115         //Do or not do isolation with previously produced AODs.
 116         //No effect if use of SwitchOnSeveralIsolation()
 117         anaisol->SwitchOffReIsolation();
 118         //Multiple IC
 119         anaisol->SwitchOffSeveralIsolation() ;
 120
 121         anaisol->Print("");
 122
 123         //<<<Third analysis>>> Isolated Photon- parton correlation
 124         AliAnaParticlePartonCorrelation *anacorr = new AliAnaParticlePartonCorrelation();
 125         anacorr->SetInputAODName("Photons");
 126         anacorr->SetDebug(-1);
 127
 128         anacorr->Print("");
 129
 130         //---------------------------------------------------------------------
 131         // Set  analysis algorithm and reader
 132         //---------------------------------------------------------------------
 133         maker = new AliAnaPartCorrMaker();
 134         maker->SetReader(reader);//pointer to reader
 135         maker->AddAnalysis(anaphoton,0);
 136         maker->AddAnalysis(anaisol,1);
 137         maker->AddAnalysis(anacorr,2);
 138         maker->SetAnaDebug(-1)  ;
 139         maker->SwitchOnHistogramsMaker()  ;
 140         //maker->SwitchOffHistogramsMaker() ;
 141         maker->SwitchOnAODsMaker()  ;
 142         //maker->SwitchOffAODsMaker() ;
 143
 144         maker->Print("");
 145         //
 146         printf("======================== \n");
 147         printf("END ConfigAnalysis() \n");
 148         printf("======================== \n");
 149         return maker ;
 150 }
 151