PWG4/macros/ConfigAnalysisGammaDirect.C

   1 /* $Id: $ */
   2 /* $Log$ */
   3
   4 //------------------------------------
   5 // Configuration macro example:
   6 //
   7 // Do prompt photon analysis with ESDs
   8 // Gamma in PHOS,
   9 // for EMCAL, PHOS by EMCAL where necessary
  10 // First find photons with AliAnaPhoton, then
  11 // isolate them with AliAnaParticleIsolation
  12 //
  13 // Author : Gustavo Conesa Balbastre (INFN-LNF)
  14 //------------------------------------
  15
  16 AliAnaPartCorrMaker*  ConfigAnalysis()
  17 {
  18         //
  19         // Configuration goes here
  20         //
  21         printf("======================== \n");
  22         printf("ConfigAnalysis() \n");
  23         printf("======================== \n");
  24
  25
  26         //Detector Fidutial Cuts
  27         AliFidutialCut * fidCut = new AliFidutialCut();
  28         fidCut->DoCTSFidutialCut(kFALSE) ;
  29         fidCut->DoEMCALFidutialCut(kFALSE) ;
  30         fidCut->DoPHOSFidutialCut(kFALSE) ;
  31
  32         //fidCut->SetSimpleCTSFidutialCut(0.9,0.,360.);
  33         //fidCut->SetSimpleEMCALFidutialCut(0.7,80.,190.);
  34         //fidCut->SetSimplePHOSFidutialCut(0.13,220.,320.);
  35
  36         fidCut->Print("");
  37
  38         //-----------------------------------------------------------
  39         // Reader
  40         //-----------------------------------------------------------
  41         AliCaloTrackESDReader *reader = new AliCaloTrackESDReader();
  42         reader->SetDebug(-1);
  43
  44         //Switch on or off the detectors information that you want
  45         reader->SwitchOffEMCAL();
  46         reader->SwitchOnCTS();
  47         reader->SwitchOnPHOS();
  48
  49         //Min particle pT
  50         reader->SetEMCALPtMin(0.2);
  51         reader->SetPHOSPtMin(0.2);
  52         reader->SetCTSPtMin(0.2);
  53
  54         reader->SetFidutialCut(fidCut);
  55         reader->Print("");
  56
  57
  58         //---------------------------------------------------------------------
  59         // Analysis algorithm
  60         //---------------------------------------------------------------------
  61         //>>>> First Analysis <<<<
  62         //Detector Fidutial Cuts for analysis part
  63         AliFidutialCut * fidCut2 = new AliFidutialCut();
  64         fidCut2->DoCTSFidutialCut(kFALSE) ;
  65         fidCut2->DoEMCALFidutialCut(kFALSE) ;
  66         fidCut2->DoPHOSFidutialCut(kFALSE) ;
  67
  68         //fidCut2->SetSimpleCTSFidutialCut(0.9,0.,360.);
  69         //fidCut2->SetSimpleEMCALFidutialCut(0.7,80.,190.);
  70         fidCut2->SetSimplePHOSFidutialCut(0.12,220.,320.);
  71
  72 //      //Select particles in N regions of the detectors
  73 //      Float_t etamax[]={0.67,0.51,0.16,-0.21,-0.61};
  74 //      TArrayF etamaxarr(5,etamax);
  75 //      fidCut2->AddEMCALFidCutMaxEtaArray(etamaxarr);
  76 //      Float_t etamin[]={0.61,0.21,-0.16,-0.51,-0.67};
  77 //      TArrayF etaminarr(5,etamin);
  78 //      fidCut2->AddEMCALFidCutMinEtaArray(etaminarr);
  79 //      Float_t phimax[]={99., 119., 139., 159., 179., 189.};
  80 //      TArrayF phimaxarr(6,phimax);
  81 //      fidCut2->AddEMCALFidCutMaxPhiArray(phimaxarr);
  82 //      Float_t phimin[]={81., 101.  , 121. , 141. , 161. , 181. };
  83 //      TArrayF phiminarr(6,phimin);
  84 //      fidCut2->AddEMCALFidCutMinPhiArray(phiminarr);
  85 //      fidCut2->Print("");
  86 //
  87         AliCaloPID * pid = new AliCaloPID();
  88         // use selection with simple weights
  89         pid->SetPHOSPhotonWeight(0.7);    pid->SetPHOSPi0Weight(0.7);
  90         pid->SetEMCALPhotonWeight(0.7);    pid->SetEMCALPi0Weight(0.7);
  91         // use more complicated selection, particle weight depending on cluster energy
  92         // pid->UsePHOSPIDWeightFormula(kTRUE);
  93         // TFormula * photonF = new TFormula("photonWeight","0.98*(x<40)+ 0.68*(x>=100)+(x>=40 && x<100)*(0.98+x*(6e-3)-x*x*(2e-04)+x*x*x*(1.1e-06))");
  94         // TFormula * pi0F = new TFormula("pi0Weight","0.98*(x<65)+ 0.915*(x>=100)+(x>=65 && x-x*(1.95e-3)-x*x*(4.31e-05)+x*x*x*(3.61e-07))");
  95         // pid->SetPHOSPhotonWeightFormula(photonF);
  96         // pid->SetPHOSPi0WeightFormula(pi0F);
  97         pid->Print("");
  98
  99
 100         AliAnaPhoton *anaphoton = new AliAnaPhoton();
 101         anaphoton->SetDebug(-1); //10 for lots of messages
 102         anaphoton->SetMinPt(0.2);
 103         anaphoton->SetMinDistanceToBadChannel(2, 4, 5);
 104         anaphoton->SetCaloPID(pid);
 105         anaphoton->SetFidutialCut(fidCut2); //More acceptance selections if needed at this level
 106         anaphoton->SetCalorimeter("PHOS");
 107         anaphoton->SwitchOffDataMC() ;//Access MC stack and fill more histograms
 108         anaphoton->SwitchOnCaloPID();
 109         anaphoton->SwitchOffCaloPIDRecalculation(); //recommended for EMCAL
 110         anaphoton->SwitchOnFidutialCut();
 111         anaphoton->SetOutputAODName("Photons");
 112         anaphoton->SetOutputAODClassName("AliAODPWG4ParticleCorrelation");
 113         //Set Histrograms bins and ranges
 114         //      anaphoton->SetHistoPtRangeAndNBins(0, 50, 100) ;
 115         //      anaphoton->SetHistoPhiRangeAndNBins(0, TMath::TwoPi(), 100) ;
 116         //      anaphoton->SetHistoEtaRangeAndNBins(-0.7, 0.7, 100) ;
 117         anaphoton->Print("");
 118
 119         // >>>> Second Analysis <<<< Isolate the photons
 120         AliIsolationCut * ic = new AliIsolationCut();
 121         ic->SetConeSize(0.5);
 122         ic->SetPtThreshold(1.);
 123         ic->SetICMethod(AliIsolationCut::kPtThresIC);
 124         ic->Print("");
 125
 126         AliAnaParticleIsolation *anaisol = new AliAnaParticleIsolation();
 127         anaisol->SetDebug(-1);
 128         anaisol->SetMinPt(5);
 129         anaisol->SetInputAODName("Photons");
 130         anaisol->SetCalorimeter("PHOS");
 131         anaisol->SwitchOffDataMC() ;//Access MC stack and fill more histograms
 132         //Select clusters with no pair, if both clusters with pi0 mass
 133         anaisol->SwitchOffInvariantMass();
 134         //anaisol->SetNeutralMesonSelection(nms);
 135         //Do isolation cut
 136         anaisol->SetIsolationCut(ic);
 137         //Do or not do isolation with previously produced AODs.
 138         //No effect if use of SwitchOnSeveralIsolation()
 139         anaisol->SwitchOffReIsolation();
 140         //Multiple IC
 141         anaisol->SwitchOffSeveralIsolation() ;
 142
 143         anaisol->Print("");
 144
 145
 146         //---------------------------------------------------------------------
 147         // Set  analysis algorithm and reader
 148         //---------------------------------------------------------------------
 149         maker = new AliAnaPartCorrMaker();
 150         maker->SetReader(reader);//pointer to reader
 151         maker->AddAnalysis(anaphoton,0);
 152         maker->AddAnalysis(anaisol,1);
 153         maker->SetAnaDebug(-1)  ;
 154         maker->SwitchOnHistogramsMaker()  ;
 155         //maker->SwitchOffHistogramsMaker() ;
 156         maker->SwitchOnAODsMaker()  ;
 157         //maker->SwitchOffAODsMaker() ;
 158
 159         maker->Print("");
 160         //
 161         printf("======================== \n");
 162         printf("END ConfigAnalysis() \n");
 163         printf("======================== \n");
 164         return maker ;
 165 }