PWGJE/EMCALJetTasks/UserTasks/AliAnalysisTaskChargedJetsPA.cxx

   1 #ifndef ALIANALYSISTASKSE_H
   2 #include <Riostream.h>
   3 #include <TROOT.h>
   4 #include <TFile.h>
   5 #include <TChain.h>
   6 #include <TTree.h>
   7 #include <TKey.h>
   8 #include <TProfile.h>
   9 #include <TProfile2D.h>
  10 #include <TH1F.h>
  11 #include <TH2F.h>
  12 #include <TCanvas.h>
  13 #include <TList.h>
  14 #include <TClonesArray.h>
  15 #include <TObject.h>
  16 #include <TMath.h>
  17 #include <TSystem.h>
  18 #include <TInterpreter.h>
  19 #include <TH1.h>
  20 #include "AliAnalysisTask.h"
  21 #include "AliCentrality.h"
  22 #include "AliStack.h"
  23 #include "AliESDEvent.h"
  24 #include "AliESDInputHandler.h"
  25 #include "AliAODEvent.h"
  26 #include "AliAODHandler.h"
  27 #include "AliAnalysisManager.h"
  28 #include "AliAnalysisTaskSE.h"
  29 #endif
  30
  31 #include <time.h>
  32 #include <TRandom3.h>
  33 #include "AliGenPythiaEventHeader.h"
  34 #include "AliAODMCHeader.h"
  35 #include "AliMCEvent.h"
  36 #include "AliLog.h"
  37 #include <AliEmcalJet.h>
  38 #include <AliPicoTrack.h>
  39 #include "AliVEventHandler.h"
  40 #include "AliVParticle.h"
  41 #include "AliAODMCParticle.h"
  42 #include "AliAnalysisUtils.h"
  43 #include "AliRhoParameter.h"
  44
  45 #include "AliAnalysisTaskChargedJetsPA.h"
  46 using std::min;
  47
  48 //TODO: Not accessing the particles when using MC
  49 //TODO: FillHistogram can be done better with virtual TH1(?)
  50 ClassImp(AliAnalysisTaskChargedJetsPA)
  51
  52 // ######################################################################################## DEFINE HISTOGRAMS
  53 void AliAnalysisTaskChargedJetsPA::Init()
  54 {
  55   #ifdef DEBUGMODE
  56     AliInfo("Creating histograms.");
  57   #endif
  58
  59   TH1D* tmpHisto = AddHistogram1D<TH1D>("hNumberEvents", "Number of events (0 = before cuts, 1 = after cuts)", "", 2, 0, 2, "stage","N^{Events}/cut");
  60   tmpHisto->GetXaxis()->SetBinLabel(1, "Before cuts");
  61   tmpHisto->GetXaxis()->SetBinLabel(2, "After cuts");
  62
  63   tmpHisto = AddHistogram1D<TH1D>("hEventAcceptance", "Accepted events (0 = before cuts, 1 = after pile up, 2 = after vertex)", "", 3, 0, 3, "stage","N^{Events}/cut");
  64   tmpHisto->GetXaxis()->SetBinLabel(1, "Before cuts");
  65   tmpHisto->GetXaxis()->SetBinLabel(2, "After pile up");
  66   tmpHisto->GetXaxis()->SetBinLabel(3, "After vertex");
  67
  68   tmpHisto = AddHistogram1D<TH1D>("hTrackAcceptance", "Accepted tracks (0 = before cuts, 1 = after eta, 2 = after pT)", "", 3, 0, 3, "stage","N^{Tracks}/cut");
  69   tmpHisto->GetXaxis()->SetBinLabel(1, "Before cuts");
  70   tmpHisto->GetXaxis()->SetBinLabel(2, "After eta");
  71   tmpHisto->GetXaxis()->SetBinLabel(3, "After p_{T}");
  72
  73   tmpHisto = AddHistogram1D<TH1D>("hJetAcceptance", "Accepted jets (0 = before cuts, 1 = after eta, 2 = after pT, 3 = after area)", "", 4, 0, 4, "stage","N^{Jets}/cut");
  74   tmpHisto->GetXaxis()->SetBinLabel(1, "Before cuts");
  75   tmpHisto->GetXaxis()->SetBinLabel(2, "After eta");
  76   tmpHisto->GetXaxis()->SetBinLabel(3, "After p_{T}");
  77   tmpHisto->GetXaxis()->SetBinLabel(4, "After area");
  78
  79   // NOTE: Jet histograms
  80   if (fAnalyzeJets)
  81   {
  82     // ######## Jet spectra
  83     AddHistogram1D<TH1D>("hRawJetPt", "Raw jets p_{T} distribution (before cuts)", "", 500, 0., 250., "p_{T} (GeV/c)", "dN^{Jets}/dp_{T}");
  84     AddHistogram2D<TH2D>("hJetPt", "Jets p_{T} distribution", "", 500, -50., 200., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)","Centrality","dN^{Jets}/dp_{T}");
  85     AddHistogram2D<TH2D>("hJetPtBgrdSubtractedKTImprovedCMS", "Jets p_{T} distribution, KT background (Improved CMS) subtracted", "", 500, -50., 200., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)","Centrality","dN^{Jets}/dp_{T}");
  86
  87     AddHistogram2D<TProfile2D>("hJetPtSubtractedRhoKTImprovedCMS", "Mean subtracted KT (CMS w/o signal) background from jets", "COLZ", 600, 0, 150, fNumberOfCentralityBins, 0, 100, "Jet p_{T}", "Centrality", "#rho mean");
  88     AddHistogram2D<TH2D>("hJetPtSubtractedRhoKTImprovedCMS020", "Mean subtracted KT (CMS w/o signal) background from jets, 0-20", "COLZ", 600, 0, 150, 400,0.,40., "Jet p_{T} (GeV/c)", "#rho (GeV/c)", "dN^{Events}/dp_{T}#rho");
  89
  90     if(fAnalyzeDeprecatedBackgrounds)
  91     {
  92       AddHistogram2D<TH2D>("hJetPtBgrdSubtractedTR", "Jets p_{T} distribution, TR background (Cone R=0.6 around jets excluded) subtracted", "", 500, -50., 200., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)","Centrality","dN^{Jets}/dp_{T}");
  93       AddHistogram2D<TH2D>("hJetPtBgrdSubtractedKTPbPb", "Jets p_{T} distribution, KT background (PbPb w/o ghosts) subtracted", "", 500, -50., 200., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)","Centrality","dN^{Jets}/dp_{T}");
  94       AddHistogram2D<TH2D>("hJetPtBgrdSubtractedKTPbPbWithGhosts", "Jets p_{T} distribution, KT background (PbPb w/ ghosts) subtracted", "", 500, -50., 200., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)","Centrality","dN^{Jets}/dp_{T}");
  95       AddHistogram2D<TH2D>("hJetPtBgrdSubtractedKTCMS", "Jets p_{T} distribution, KT background (CMS) subtracted", "", 500, -50., 200., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)","Centrality","dN^{Jets}/dp_{T}");
  96       AddHistogram2D<TH2D>("hJetPtBgrdSubtractedKTMean", "Jets p_{T} distribution, KT background (Mean) subtracted", "", 500, -50., 200., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)","Centrality","dN^{Jets}/dp_{T}");
  97       AddHistogram2D<TH2D>("hJetPtBgrdSubtractedKTTrackLike", "Jets p_{T} distribution, KT background (track-like) subtracted", "", 500, -50., 200., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)","Centrality","dN^{Jets}/dp_{T}");
  98     }
  99
 100     // ######## Jet stuff
 101     AddHistogram2D<TH2D>("hJetConstituentPt", "Jet constituents p_{T} distribution", "", 500, -50., 200., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)","Centrality","dN^{Tracks}/dp_{T}");
 102     AddHistogram1D<TH1D>("hJetCountAll", "Number of Jets", "", 200, 0., 200., "N jets","dN^{Events}/dN^{Jets}");
 103     AddHistogram1D<TH1D>("hJetCountAccepted", "Number of accepted Jets", "", 200, 0., 200., "N jets","dN^{Events}/dN^{Jets}");
 104     AddHistogram2D<TH2D>("hJetCount", "Correlation jets/accepted jets", "", 200, 0., 200., 200, 0., 200., "N jets","N jets accepted", "d^{2}N^{Events}/dN^{Jets dN^{Jets, acc}}");
 105     AddHistogram1D<TH1D>("hLeadingJetPt", "Leading jet p_{T}", "", 500, -50., 200., "p_{T} (GeV/c)","dN^{Jets}/dp_{T}");
 106     AddHistogram1D<TH1D>("hSecondLeadingJetPt", "Second leading jet p_{T}", "", 500, -50., 200., "p_{T} (GeV/c)","dN^{Jets}/dp_{T}");
 107     AddHistogram1D<TH1D>("hCorrectedLeadingJetPt", "Corrected leading jet p_{T}", "", 500, -50., 200., "p_{T} (GeV/c)","dN^{Jets}/dp_{T}");
 108     AddHistogram1D<TH1D>("hCorrectedSecondLeadingJetPt", "Corrected second leading jet p_{T}", "", 500, -50., 200., "p_{T} (GeV/c)","dN^{Jets}/dp_{T}");
 109     AddHistogram1D<TH1D>("hJetDeltaPhi", "Jets combinatorial #Delta #phi", "", 250, 0., TMath::Pi(), "#Delta #phi","dN^{Jets}/d(#Delta #phi)");
 110     AddHistogram1D<TH1D>("hLeadingJetDeltaPhi", "1st and 2nd leading jet #Delta #phi", "", 250, 0., TMath::Pi(), "#Delta #phi","dN^{Jets}/d(#Delta #phi)");
 111
 112     // ########## Dijet stuff
 113     AddHistogram1D<TH1D>("hDijetLeadingJetPt", "Dijet leading jet p_{T} distribution", "", 500, 0., 100., "p_{T} (GeV/c)","dN^{Jets}/dp_{T}");
 114     AddHistogram1D<TH1D>("hDijetConstituentsPt", "Dijet constituents p_{T} distribution", "", 500, 0., 100., "p_{T} (GeV/c)","dN^{Jets}/dp_{T}");
 115     AddHistogram2D<TH2D>("hDijetPtCorrelation", "Dijet constituents p_{T} correlation", "COLZ", 500, 5., 100., 500, 5., 100., "1st leading jet p_{T} (GeV/c)","2nd leading jet p_{T} (GeV/c)","dN^{Dijets}/d^{2}p_{T}");
 116   }
 117
 118   // NOTE: Jet background histograms
 119   if (fAnalyzeBackground)
 120   {
 121     // ########## Default background estimates
 122     AddHistogram2D<TH2D>("hKTBackgroundImprovedCMS", "KT background density (Improved CMS approach)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 123     AddHistogram2D<TH2D>("hKTBackgroundImprovedCMSExternal", "KT background density (Improved CMS approach from external task)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 124     AddHistogram2D<TH2D>("hDeltaPtKTImprovedCMS", "Background fluctuations #delta p_{T} (KT, Improved CMS-like)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100, "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 125     AddHistogram2D<TH2D>("hDeltaPtKTImprovedCMSPartialExclusion", "Background fluctuations #delta p_{T} (KT, Improved CMS-like, partial jet exclusion)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100, "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 126     AddHistogram2D<TH2D>("hDeltaPtKTImprovedCMSPartialExclusion_Signal", "Background fluctuations #delta p_{T} (KT, Improved CMS-like, partial jet exclusion w/ 1/N_{sig} probability)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100, "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 127     AddHistogram2D<TH2D>("hDeltaPtKTImprovedCMSFullExclusion", "Background fluctuations #delta p_{T} (KT, Improved CMS-like, full leading jet exclusion)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100, "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 128     AddHistogram2D<TH2D>("hDeltaPtNoBackground", "Background fluctuations #delta p_{T} (No background)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100, "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 129     AddHistogram2D<TH2D>("hDeltaPtNoBackgroundNoEmptyCones", "Background fluctuations #delta p_{T} (No background, no empty cones)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100, "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 130
 131     AddHistogram1D<TProfile>("hKTMeanBackgroundImprovedCMS", "KT background mean (Improved CMS approach)", "", 100, 0, 100, "Centrality", "#rho mean");
 132
 133     AddHistogram2D<TH2D>("hDijetBackground", "Background density (dijets excluded)", "", 200, 0., 20., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 134     AddHistogram2D<TH2D>("hDijetBackgroundPerpendicular", "Background density (dijets excluded)", "", 200, 0., 20., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 135
 136     if(fAnalyzeDeprecatedBackgrounds)
 137     {
 138       // ########## Different background estimates
 139       AddHistogram2D<TH2D>("hKTBackgroundPbPb", "KT background density (PbPb approach, no ghosts)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 140       AddHistogram2D<TH2D>("hKTBackgroundPbPbWithGhosts", "KT background density (PbPb approach w/ ghosts)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 141       AddHistogram2D<TH2D>("hKTBackgroundCMS", "KT background density (CMS approach)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 142       AddHistogram2D<TH2D>("hKTBackgroundMean", "KT background density (Mean approach)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 143       AddHistogram2D<TH2D>("hKTBackgroundTrackLike", "KT background density (Track-like approach)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 144
 145       AddHistogram2D<TH2D>("hTRBackgroundNoExcl", "TR background density (No signal excluded)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 146       AddHistogram2D<TH2D>("hTRBackgroundCone02", "TR background density (Cones R=0.2 around signal jets excluded)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 147       AddHistogram2D<TH2D>("hTRBackgroundCone04", "TR background density (Cones R=0.4 around signal jets excluded)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 148       AddHistogram2D<TH2D>("hTRBackgroundCone06", "TR background density (Cones R=0.6 around signal jets excluded)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 149       AddHistogram2D<TH2D>("hTRBackgroundCone08", "TR background density (Cones R=0.8 around signal jets excluded)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 150       AddHistogram2D<TH2D>("hTRBackgroundExact",  "TR background density (signal jets exactly excluded)", "LEGO2", 400, 0., 40., fNumberOfCentralityBins, 0, 100, "#rho (GeV/c)","Centrality", "dN^{Events}/d#rho");
 151
 152       // ########## Delta Pt
 153       AddHistogram2D<TH2D>("hDeltaPtKTPbPb", "Background fluctuations #delta p_{T} (KT, PbPb w/o ghosts)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100, "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 154       AddHistogram2D<TH2D>("hDeltaPtKTPbPbWithGhosts", "Background fluctuations #delta p_{T} (KT, PbPb w/ ghosts)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100, "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 155       AddHistogram2D<TH2D>("hDeltaPtKTCMS", "Background fluctuations #delta p_{T} (KT, CMS-like)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100, "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 156       AddHistogram2D<TH2D>("hDeltaPtKTMean", "Background fluctuations #delta p_{T} (KT, Mean)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100, "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 157       AddHistogram2D<TH2D>("hDeltaPtKTTrackLike", "Background fluctuations #delta p_{T} (KT, track-like)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100, "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 158       AddHistogram2D<TH2D>("hDeltaPtTR", "Background fluctuations #delta p_{T} (TR, cone R=0.6)", "", 1201, -40.0, 40.0, fNumberOfCentralityBins, 0, 100,  "#delta p_{T} (GeV/c)","Centrality","dN^{Jets}/d#delta p_{T}");
 159
 160       // ########## Profiles for background means vs. centrality
 161       AddHistogram1D<TProfile>("hKTMeanBackgroundPbPb", "KT background mean (PbPb approach w/o ghosts)", "", fNumberOfCentralityBins, 0, 100, "Centrality", "#rho mean");
 162       AddHistogram1D<TProfile>("hKTMeanBackgroundPbPbWithGhosts", "KT background mean (PbPb approach)", "", fNumberOfCentralityBins, 0, 100, "Centrality", "#rho mean");
 163       AddHistogram1D<TProfile>("hKTMeanBackgroundCMS", "KT background mean (CMS approach)", "", fNumberOfCentralityBins, 0, 100, "Centrality", "#rho mean");
 164       AddHistogram1D<TProfile>("hKTMeanBackgroundMean", "KT background mean (Mean approach)", "",  fNumberOfCentralityBins, 0, 100, "Centrality", "#rho mean");
 165       AddHistogram1D<TProfile>("hKTMeanBackgroundTPC", "KT background mean (Track-like approach)", "", fNumberOfCentralityBins, 0, 100, "Centrality", "#rho mean");
 166       AddHistogram1D<TProfile>("hTRMeanBackground", "TR background mean", "", fNumberOfCentralityBins, 0, 100, "Centrality", "#rho mean");
 167     }
 168   }
 169
 170
 171   // NOTE: Track & Cluster & QA histograms
 172   if (fAnalyzeQA)
 173   {
 174     AddHistogram1D<TH1D>("hVertexX", "X distribution of the vertex", "", 2000, -1., 1., "#Delta x(cm)","dN^{Events}/dx");
 175     AddHistogram1D<TH1D>("hVertexY", "Y distribution of the vertex", "", 2000, -1., 1., "#Delta y(cm)","dN^{Events}/dy");
 176     AddHistogram2D<TH2D>("hVertexXY", "XY distribution of the vertex", "COLZ", 500, -1., 1., 500, -1., 1.,"#Delta x(cm)", "#Delta y(cm)","dN^{Events}/dxdy");
 177     AddHistogram1D<TH1D>("hVertexZ", "Z distribution of the vertex", "", 200, -20., 20., "#Delta z(cm)","dN^{Events}/dz");
 178     AddHistogram1D<TH1D>("hVertexR", "R distribution of the vertex", "", 100, 0., 1., "#Delta r(cm)","dN^{Events}/dr");
 179     AddHistogram1D<TH1D>("hCentralityV0M", "Centrality distribution V0M", "", fNumberOfCentralityBins, 0., 100., "Centrality","dN^{Events}");
 180     AddHistogram1D<TH1D>("hCentralityV0A", "Centrality distribution V0A", "", fNumberOfCentralityBins, 0., 100., "Centrality","dN^{Events}");
 181     AddHistogram1D<TH1D>("hCentralityV0C", "Centrality distribution V0C", "", fNumberOfCentralityBins, 0., 100., "Centrality","dN^{Events}");
 182     AddHistogram1D<TH1D>("hCentrality", Form("Centrality distribution %s", fCentralityType.Data()), "", fNumberOfCentralityBins, 0., 100., "Centrality","dN^{Events}");
 183
 184
 185     AddHistogram2D<TH2D>("hTrackCountAcc", "Number of tracks in acceptance vs. centrality", "LEGO2", 750, 0., 750., fNumberOfCentralityBins, 0, 100, "N tracks","Centrality", "dN^{Events}/dN^{Tracks}");
 186     AddHistogram2D<TH2D>("hTrackPt", "Tracks p_{T} distribution", "", 1000, 0., 250., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)", "Centrality", "dN^{Tracks}/dp_{T}");
 187     AddHistogram2D<TH2D>("hTrackPtNegEta", "Tracks p_{T} distribution (negative #eta)", "", 1000, 0., 250., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)","Centrality","dN^{Tracks}/dp_{T}");
 188     AddHistogram2D<TH2D>("hTrackPtPosEta", "Tracks p_{T} distribution (positive #eta)", "", 1000, 0., 250., fNumberOfCentralityBins, 0, 100, "p_{T} (GeV/c)","Centrality","dN^{Tracks}/dp_{T}");
 189     AddHistogram1D<TH1D>("hTrackCharge", "Charge", "", 11, -5, 5, "Charge (e)","dN^{Tracks}/dq");
 190     AddHistogram1D<TH1D>("hTrackPhi", "Track #phi distribution", "", 360, 0, TMath::TwoPi(), "#phi","dN^{Tracks}/d#phi");
 191     AddHistogram2D<TH2D>("hTrackPhiEta", "Track angular distribution", "LEGO2", 100, 0., 2*TMath::Pi(),100, -2.5, 2.5, "#phi","#eta","dN^{Tracks}/(d#phi d#eta)");
 192
 193     AddHistogram2D<TH2D>("hTrackPhiPtCut", "Track #phi distribution for different pT cuts", "LEGO2", 360, 0, TMath::TwoPi(), 20, 0, 20, "#phi", "p_{T} lower cut", "dN^{Tracks}/d#phi dp_{T}");
 194     AddHistogram2D<TH2D>("hTrackPhiLabel", "Track #phi distribution for different labels", "LEGO2", 360, 0, TMath::TwoPi(), 3, 0, 3, "#phi", "Label", "dN^{Tracks}/d#phi");
 195     AddHistogram2D<TH2D>("hTrackPhiTrackType", "Track #phi distribution for different track types", "LEGO2", 360, 0, TMath::TwoPi(), 3, 0, 3, "#phi", "Label", "dN^{Tracks}/d#phi");
 196     AddHistogram2D<TH2D>("hTrackEta", "Track #eta distribution", "COLZ", 180, -fTrackEtaWindow, +fTrackEtaWindow, fNumberOfCentralityBins, 0., 100., "#eta", "Centrality", "dN^{Tracks}/d#eta");
 197     if (fAnalyzeJets)
 198     {
 199       // ######## Jet QA
 200       AddHistogram1D<TH1D>("hRawJetArea", "Jets area distribution w/o area cut", "", 200, 0., 2., "Area","dN^{Jets}/dA");
 201       AddHistogram1D<TH1D>("hJetArea", "Jets area distribution", "", 200, 0., 2., "Area","dN^{Jets}/dA");
 202       AddHistogram2D<TH2D>("hRawJetPhiEta", "Raw Jets angular distribution w/o #eta cut", "LEGO2", 360, 0., 2*TMath::Pi(),100, -1.0, 1.0, "#phi","#eta","dN^{Jets}/(d#phi d#eta)");
 203       AddHistogram2D<TH2D>("hJetEta", "Jets #eta distribution", "COLZ", 180, -fTrackEtaWindow, +fTrackEtaWindow, fNumberOfCentralityBins, 0., 100., "#eta", "Centrality", "dN^{Jets}/d#eta");
 204       AddHistogram2D<TH2D>("hJetPhiEta", "Jets angular distribution", "LEGO2", 360, 0., 2*TMath::Pi(),100, -1.0, 1.0, "#phi","#eta","dN^{Jets}/(d#phi d#eta)");
 205       AddHistogram2D<TH2D>("hJetPtVsConstituentCount", "Jets number of constituents vs. jet p_{T}", "COLZ", 400, 0., 200., 100, 0., 100., "p_{T}","N^{Tracks}","dN^{Jets}/(dp_{T} dN^{tracks})");
 206     }
 207   }
 208
 209   // NOTE: Pythia histograms
 210   if (fAnalyzePythia)
 211   {
 212     AddHistogram1D<TH1D>("hPythiaPtHard", "Pythia p_{T} hard distribution", "", 2000, 0, 400, "p_{T} hard","dN^{Events}/dp_{T,hard}");
 213   }
 214
 215   // register Histograms
 216   for (Int_t i = 0; i < fHistCount; i++)
 217   {
 218     fOutputList->Add(fHistList->At(i));
 219   }
 220
 221   PostData(1,fOutputList); // important for merging
 222
 223 }
 224
 225 //________________________________________________________________________
 226 AliAnalysisTaskChargedJetsPA::AliAnalysisTaskChargedJetsPA(const char *name, const char* trackArrayName, const char* jetArrayName, const char* backgroundJetArrayName) : AliAnalysisTaskSE(name), fOutputList(0), fAnalyzeJets(1), fAnalyzeQA(1), fAnalyzeBackground(1), fAnalyzeDeprecatedBackgrounds(1), fAnalyzePythia(0), fHasTracks(0), fHasJets(0), fHasBackgroundJets(0), fIsKinematics(0), fUseVertexCut(1), fUsePileUpCut(1), fSetCentralityToOne(0), fPartialAnalysisNParts(1), fPartialAnalysisIndex(0), fJetArray(0), fTrackArray(0), fBackgroundJetArray(0), fJetArrayName(0), fTrackArrayName(0), fBackgroundJetArrayName(0), fNumPtHardBins(11), fUsePtHardBin(-1), fRhoTaskName(), fNcoll(6.88348), fRandConeRadius(0.4), fSignalJetRadius(0.4), fBackgroundJetRadius(0.4), fTRBackgroundConeRadius(0.6), fNumberRandCones(8), fNumberExcludedJets(-1), fDijetMaxAngleDeviation(10.0), fPhysicalJetRadius(0.6), fSignalJetEtaWindow(0.5), fBackgroundJetEtaWindow(0.5), fTrackEtaWindow(0.9), fMinTrackPt(0.150), fMinJetPt(1.0), fMinJetArea(0.5), fMinBackgroundJetPt(0.0), fMinDijetLeadingPt(10.0), fNumberOfCentralityBins(20), fCentralityType("V0A"), fFirstLeadingJet(0), fSecondLeadingJet(0), fNumberSignalJets(0), fCrossSection(0.0), fTrials(0.0),  fRandom(0), fHelperClass(0), fInitialized(0), fTaskInstanceCounter(0), fHistList(0), fHistCount(0), fIsDEBUG(0), fEventCounter(0)
 227 {
 228   #ifdef DEBUGMODE
 229     AliInfo("Calling constructor.");
 230   #endif
 231
 232   // Every instance of this task gets his own number
 233   static Int_t instance = 0;
 234   fTaskInstanceCounter = instance;
 235   instance++;
 236
 237   fTrackArrayName = new TString(trackArrayName);
 238   if (fTrackArrayName->Contains("MCParticles") || fTrackArrayName->Contains("mcparticles"))
 239     fIsKinematics = kTRUE;
 240
 241   fJetArrayName = new TString(jetArrayName);
 242   if (strcmp(fJetArrayName->Data(),"") == 0)
 243     fAnalyzeJets = kFALSE;
 244   else
 245     fAnalyzeJets = kTRUE;
 246
 247   fBackgroundJetArrayName = new TString(backgroundJetArrayName);
 248   if (strcmp(fBackgroundJetArrayName->Data(),"") == 0)
 249     fAnalyzeBackground = kFALSE;
 250   else
 251     fAnalyzeBackground = kTRUE;
 252
 253   DefineOutput(1, TList::Class());
 254
 255   fHistList = new TList();
 256
 257   for(Int_t i=0;i<1024;i++)
 258     fSignalJets[i] = NULL;
 259
 260
 261   #ifdef DEBUGMODE
 262     AliInfo("Constructor done.");
 263   #endif
 264
 265 }
 266
 267 //________________________________________________________________________
 268 inline Double_t AliAnalysisTaskChargedJetsPA::GetConePt(Double_t eta, Double_t phi, Double_t radius)
 269 {
 270   Double_t tmpConePt = 0.0;
 271
 272   for (Int_t i = 0; i < fTrackArray->GetEntries(); i++)
 273   {
 274     AliVTrack* tmpTrack = static_cast<AliVTrack*>(fTrackArray->At(i));
 275     if (IsTrackInAcceptance(tmpTrack))
 276       if(IsTrackInCone(tmpTrack, eta, phi, radius))
 277         tmpConePt = tmpConePt + tmpTrack->Pt();
 278   }
 279   return tmpConePt;
 280 }
 281
 282
 283 //________________________________________________________________________
 284 inline Double_t AliAnalysisTaskChargedJetsPA::GetPtHard()
 285 {
 286   #ifdef DEBUGMODE
 287     AliInfo("Starting GetPtHard.");
 288   #endif
 289   AliGenPythiaEventHeader* pythiaHeader = dynamic_cast<AliGenPythiaEventHeader*>(MCEvent()->GenEventHeader());
 290   if (MCEvent())
 291     if (!pythiaHeader)
 292     {
 293       // Check if AOD
 294       AliAODMCHeader* aodMCH = dynamic_cast<AliAODMCHeader*>(InputEvent()->FindListObject(AliAODMCHeader::StdBranchName()));
 295
 296       if (aodMCH)
 297       {
 298         for(UInt_t i = 0;i<aodMCH->GetNCocktailHeaders();i++)
 299         {
 300           pythiaHeader = dynamic_cast<AliGenPythiaEventHeader*>(aodMCH->GetCocktailHeader(i));
 301           if (pythiaHeader) break;
 302         }
 303       }
 304     }
 305
 306   #ifdef DEBUGMODE
 307     AliInfo("Ending GetPtHard.");
 308   #endif
 309   if (pythiaHeader)
 310     return pythiaHeader->GetPtHard();
 311
 312   AliWarning(Form("In task %s: GetPtHard() failed!", GetName()));
 313   return -1.0;
 314 }
 315
 316
 317 //________________________________________________________________________
 318 inline Double_t AliAnalysisTaskChargedJetsPA::GetPythiaTrials()
 319 {
 320   #ifdef DEBUGMODE
 321     AliInfo("Starting GetPythiaTrials.");
 322   #endif
 323   AliGenPythiaEventHeader* pythiaHeader = dynamic_cast<AliGenPythiaEventHeader*>(MCEvent()->GenEventHeader());
 324   if (MCEvent())
 325     if (!pythiaHeader)
 326     {
 327       // Check if AOD
 328       AliAODMCHeader* aodMCH = dynamic_cast<AliAODMCHeader*>(InputEvent()->FindListObject(AliAODMCHeader::StdBranchName()));
 329
 330       if (aodMCH)
 331       {
 332         for(UInt_t i = 0;i<aodMCH->GetNCocktailHeaders();i++)
 333         {
 334           pythiaHeader = dynamic_cast<AliGenPythiaEventHeader*>(aodMCH->GetCocktailHeader(i));
 335           if (pythiaHeader) break;
 336         }
 337       }
 338     }
 339
 340   #ifdef DEBUGMODE
 341     AliInfo("Ending GetPythiaTrials.");
 342   #endif
 343   if (pythiaHeader)
 344     return pythiaHeader->Trials();
 345
 346   AliWarning(Form("In task %s: GetPythiaTrials() failed!", GetName()));
 347   return -1.0;
 348 }
 349
 350
 351
 352 //________________________________________________________________________
 353 inline Int_t AliAnalysisTaskChargedJetsPA::GetPtHardBin()
 354 {
 355   #ifdef DEBUGMODE
 356     AliInfo("Starting GetPtHardBin.");
 357   #endif
 358   // ########## PT HARD BIN EDGES
 359   const Int_t kPtHardLowerEdges[] =  { 0, 5,11,21,36,57, 84,117,152,191,234};
 360   const Int_t kPtHardHigherEdges[] = { 5,11,21,36,57,84,117,152,191,234,1000000};
 361
 362   Int_t tmpPtHardBin = 0;
 363   Double_t tmpPtHard = GetPtHard();
 364
 365   for (tmpPtHardBin = 0; tmpPtHardBin <= fNumPtHardBins; tmpPtHardBin++)
 366     if (tmpPtHard >= kPtHardLowerEdges[tmpPtHardBin] && tmpPtHard < kPtHardHigherEdges[tmpPtHardBin])
 367       break;
 368
 369   #ifdef DEBUGMODE
 370     AliInfo("Ending GetPtHardBin.");
 371   #endif
 372   return tmpPtHardBin;
 373 }
 374
 375 //________________________________________________________________________
 376 Double_t AliAnalysisTaskChargedJetsPA::GetExternalRho()
 377 {
 378   // Get rho from event.
 379   AliRhoParameter *rho = 0;
 380   if (!fRhoTaskName.IsNull()) {
 381     rho = dynamic_cast<AliRhoParameter*>(InputEvent()->FindListObject(fRhoTaskName.Data()));
 382     if (!rho) {
 383       AliWarning(Form("%s: Could not retrieve rho with name %s!", GetName(), fRhoTaskName.Data()));
 384       return 0;
 385     }
 386   }
 387   else
 388     return 0;
 389
 390   return (rho->GetVal());
 391 }
 392
 393
 394 //________________________________________________________________________
 395 inline Bool_t AliAnalysisTaskChargedJetsPA::IsTrackInCone(AliVTrack* track, Double_t eta, Double_t phi, Double_t radius)
 396 {
 397   // This is to use a full cone in phi even at the edges of phi (2pi -> 0) (0 -> 2pi)
 398   Double_t trackPhi = 0.0;
 399   if (track->Phi() > (TMath::TwoPi() - (radius-phi)))
 400     trackPhi = track->Phi() - TMath::TwoPi();
 401   else if (track->Phi() < (phi+radius - TMath::TwoPi()))
 402     trackPhi = track->Phi() + TMath::TwoPi();
 403   else
 404     trackPhi = track->Phi();
 405
 406   if ( TMath::Abs(trackPhi-phi)*TMath::Abs(trackPhi-phi) + TMath::Abs(track->Eta()-eta)*TMath::Abs(track->Eta()-eta) <= radius*radius)
 407     return kTRUE;
 408
 409   return kFALSE;
 410 }
 411
 412 //________________________________________________________________________
 413 inline Bool_t AliAnalysisTaskChargedJetsPA::IsTrackInJet(AliEmcalJet* jet, Int_t trackIndex)
 414 {
 415   for (Int_t i = 0; i < jet->GetNumberOfTracks(); ++i)
 416   {
 417     Int_t jetTrack = jet->TrackAt(i);
 418     if (jetTrack == trackIndex)
 419       return kTRUE;
 420   }
 421   return kFALSE;
 422 }
 423
 424 //________________________________________________________________________
 425 inline Bool_t AliAnalysisTaskChargedJetsPA::IsJetOverlapping(AliEmcalJet* jet1, AliEmcalJet* jet2)
 426 {
 427   for (Int_t i = 0; i < jet1->GetNumberOfTracks(); ++i)
 428   {
 429     Int_t jet1Track = jet1->TrackAt(i);
 430     for (Int_t j = 0; j < jet2->GetNumberOfTracks(); ++j)
 431     {
 432       Int_t jet2Track = jet2->TrackAt(j);
 433       if (jet1Track == jet2Track)
 434         return kTRUE;
 435     }
 436   }
 437   return kFALSE;
 438 }
 439
 440 //________________________________________________________________________
 441 inline Bool_t AliAnalysisTaskChargedJetsPA::IsEventInAcceptance(AliVEvent* event)
 442 {
 443   if (!event)
 444     return kFALSE;
 445
 446   FillHistogram("hEventAcceptance", 0.5); // number of events before manual cuts
 447   if(fUsePileUpCut)
 448     if(fHelperClass->IsPileUpEvent(event))
 449       return kFALSE;
 450
 451   FillHistogram("hEventAcceptance", 1.5); // number of events after pileup cuts
 452
 453   if(fAnalyzeQA)
 454     FillHistogram("hVertexZ",event->GetPrimaryVertex()->GetZ());
 455
 456   if(fUseVertexCut)
 457     if(!fHelperClass->IsVertexSelected2013pA(event))
 458       return kFALSE;
 459   FillHistogram("hEventAcceptance", 2.5); // number of events after vertex cut
 460
 461   return kTRUE;
 462 }
 463
 464 //________________________________________________________________________
 465 inline Bool_t AliAnalysisTaskChargedJetsPA::IsTrackInAcceptance(AliVParticle* track)
 466 {
 467   FillHistogram("hTrackAcceptance", 0.5);
 468   if (track != 0)
 469   {
 470     if(fIsKinematics)
 471     {
 472       // TODO: Only working for AOD MC
 473       if((!track->Charge()) || (!(static_cast<AliAODMCParticle*>(track))->IsPhysicalPrimary()) )
 474         return kFALSE;
 475     }
 476     if (TMath::Abs(track->Eta()) <= fTrackEtaWindow)
 477     {
 478       FillHistogram("hTrackAcceptance", 1.5);
 479       if (track->Pt() >= fMinTrackPt)
 480       {
 481         FillHistogram("hTrackAcceptance", 2.5);
 482         return kTRUE;
 483       }
 484     }
 485   }
 486   return kFALSE;
 487 }
 488
 489 //________________________________________________________________________
 490 inline Bool_t AliAnalysisTaskChargedJetsPA::IsBackgroundJetInAcceptance(AliEmcalJet *jet)
 491 {
 492   if (jet != 0)
 493     if (TMath::Abs(jet->Eta()) <= fBackgroundJetEtaWindow)
 494       if (jet->Pt() >= fMinBackgroundJetPt)
 495         return kTRUE;
 496
 497   return kFALSE;
 498 }
 499
 500 //________________________________________________________________________
 501 inline Bool_t AliAnalysisTaskChargedJetsPA::IsSignalJetInAcceptance(AliEmcalJet *jet)
 502 {
 503   FillHistogram("hJetAcceptance", 0.5);
 504   if (jet != 0)
 505     if (TMath::Abs(jet->Eta()) <= fSignalJetEtaWindow)
 506     {
 507       FillHistogram("hJetAcceptance", 1.5);
 508       if (jet->Pt() >= fMinJetPt)
 509       {
 510         FillHistogram("hJetAcceptance", 2.5);
 511         if (jet->Area() >= fMinJetArea)
 512         {
 513           FillHistogram("hJetAcceptance", 3.5);
 514           return kTRUE;
 515         }
 516       }
 517     }
 518   return kFALSE;
 519 }
 520
 521 //________________________________________________________________________
 522 inline Bool_t AliAnalysisTaskChargedJetsPA::IsDijet(AliEmcalJet *jet1, AliEmcalJet *jet2)
 523 {
 524   // Output from GetDeltaPhi is < pi in any case
 525   if ((jet1 != 0) && (jet2 != 0))
 526     if((TMath::Pi() - GetDeltaPhi(jet1->Phi(),jet2->Phi())) < fDijetMaxAngleDeviation)
 527       if ((jet1->Pt() > fMinDijetLeadingPt) && (jet2->Pt() > fMinDijetLeadingPt)) //TODO: Introduce recoil jet?
 528         return kTRUE;
 529
 530   return kFALSE;
 531 }
 532
 533 //________________________________________________________________________
 534 void AliAnalysisTaskChargedJetsPA::ExecOnce()
 535 {
 536   #ifdef DEBUGMODE
 537     AliInfo("Starting ExecOnce.");
 538   #endif
 539   fInitialized = kTRUE;
 540
 541   // Check for track array
 542   if (strcmp(fTrackArrayName->Data(), "") != 0)
 543   {
 544     fTrackArray = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(fTrackArrayName->Data()));
 545     fHasTracks = kTRUE;
 546     if (!fTrackArray)
 547     {
 548       AliWarning(Form("%s: Could not retrieve tracks %s! This is OK, if tracks are not demanded.", GetName(), fTrackArrayName->Data()));
 549       fHasTracks = kFALSE;
 550     }
 551     else
 552     {
 553       TClass *cl = fTrackArray->GetClass();
 554       if (!cl->GetBaseClass("AliVParticle"))
 555       {
 556         AliError(Form("%s: Collection %s does not contain AliVParticle objects!", GetName(), fTrackArrayName->Data()));
 557         fTrackArray = 0;
 558         fHasTracks = kFALSE;
 559       }
 560     }
 561   }
 562
 563   // Check for jet array
 564   if (strcmp(fJetArrayName->Data(), "") != 0)
 565   {
 566     fJetArray = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(fJetArrayName->Data()));
 567     fHasJets = kTRUE;
 568
 569     if (!fJetArray)
 570     {
 571       AliWarning(Form("%s: Could not retrieve jets %s! This is OK, if jets are not demanded.", GetName(), fJetArrayName->Data()));
 572       fHasJets = kFALSE;
 573     }
 574     else
 575     {
 576       if (!fJetArray->GetClass()->GetBaseClass("AliEmcalJet"))
 577       {
 578         AliError(Form("%s: Collection %s does not contain AliEmcalJet objects!", GetName(), fJetArrayName->Data()));
 579         fJetArray = 0;
 580         fHasJets = kFALSE;
 581       }
 582     }
 583   }
 584
 585   // Check for background object
 586   if (strcmp(fBackgroundJetArrayName->Data(), "") != 0)
 587   {
 588     fBackgroundJetArray = dynamic_cast<TClonesArray*>(InputEvent()->FindListObject(fBackgroundJetArrayName->Data()));
 589     fHasBackgroundJets = kTRUE;
 590     if (!fBackgroundJetArray)
 591     {
 592       AliInfo(Form("%s: Could not retrieve background jets %s! This is OK, if background is not demanded.", GetName(), fBackgroundJetArrayName->Data()));
 593       fHasBackgroundJets = kFALSE;
 594     }
 595   }
 596
 597   // Look, if initialization is OK
 598   if (!fHasTracks && fAnalyzeBackground)
 599   {
 600     AliError(Form("%s: Tracks NOT successfully casted although demanded! Deactivating background analysis",GetName()));
 601     fAnalyzeBackground = kFALSE;
 602   }
 603   if ((!fHasJets && fAnalyzeJets) || (!fHasJets && fAnalyzeBackground))
 604   {
 605     AliError(Form("%s: Jets NOT successfully casted although demanded!  Deactivating jet- and background analysis",GetName()));
 606     fAnalyzeJets = kFALSE;
 607     fAnalyzeBackground = kFALSE;
 608   }
 609   if (!fHasBackgroundJets && fAnalyzeBackground)
 610   {
 611     AliError(Form("%s: Background NOT successfully casted although demanded!  Deactivating background analysis",GetName()));
 612     fAnalyzeBackground = kFALSE;
 613   }
 614
 615   // Initialize helper class (for vertex selection & pile up correction)
 616   fHelperClass = new AliAnalysisUtils();
 617   fHelperClass->SetCutOnZVertexSPD(kFALSE);
 618   // Histogram init
 619   Init();
 620
 621   #ifdef DEBUGMODE
 622     AliInfo("ExecOnce done.");
 623   #endif
 624
 625 }
 626
 627 //________________________________________________________________________
 628 void AliAnalysisTaskChargedJetsPA::GetSignalJets()
 629 {
 630   // Reset vars
 631   fFirstLeadingJet = NULL;
 632   fSecondLeadingJet = NULL;
 633   fNumberSignalJets = 0;
 634
 635   TList tmpJets;
 636   for (Int_t i = 0; i < fJetArray->GetEntries(); i++)
 637   {
 638     AliEmcalJet* jet = static_cast<AliEmcalJet*>(fJetArray->At(i));
 639     if (!jet)
 640     {
 641       AliError(Form("%s: Could not receive jet %d", GetName(), i));
 642       continue;
 643     }
 644     if (!IsSignalJetInAcceptance(jet))
 645       continue;
 646
 647     for (Int_t j = 0; j <= tmpJets.GetEntries(); j++)
 648     {
 649       if (j>tmpJets.GetEntries()-1) // When passed last item add the jet at the end
 650       {
 651         tmpJets.Add(jet);
 652         break;
 653       }
 654
 655       AliEmcalJet* listJet = static_cast<AliEmcalJet*>(tmpJets.At(j));
 656
 657       if(jet->Pt() < listJet->Pt()) // Insert jet before that one in list if pt smaller
 658       {
 659         tmpJets.AddAt(jet, j);
 660         break;
 661       }
 662     }
 663   }
 664
 665   for (Int_t i = 0; i < tmpJets.GetEntries(); i++)
 666   {
 667     AliEmcalJet* jet = static_cast<AliEmcalJet*>(tmpJets.At(i));
 668     fSignalJets[fNumberSignalJets] = jet;
 669     fNumberSignalJets++;
 670   }
 671
 672   if (fNumberSignalJets > 0)
 673     fFirstLeadingJet  = static_cast<AliEmcalJet*>(tmpJets.At(0));
 674   if (fNumberSignalJets > 1)
 675     fSecondLeadingJet = static_cast<AliEmcalJet*>(tmpJets.At(1));
 676
 677 }
 678
 679 //________________________________________________________________________
 680 Int_t AliAnalysisTaskChargedJetsPA::GetLeadingJets(TClonesArray* jetArray, Int_t* jetIDArray, Bool_t isSignalJets)
 681 {
 682 // Writes first two leading jets into already registered array jetIDArray
 683
 684   if (!jetArray)
 685   {
 686     AliError("Could not get the jet array to get leading jets from it!");
 687     return 0;
 688   }
 689
 690   Float_t maxJetPts[] = {0, 0};
 691   jetIDArray[0] = -1;
 692   jetIDArray[1] = -1;
 693
 694   Int_t jetCount = jetArray->GetEntries();
 695   Int_t jetCountAccepted = 0;
 696
 697   for (Int_t i = 0; i < jetCount; i++)
 698   {
 699     AliEmcalJet* jet = static_cast<AliEmcalJet*>(jetArray->At(i));
 700     if (!jet)
 701     {
 702       AliError(Form("%s: Could not receive jet %d", GetName(), i));
 703       continue;
 704     }
 705
 706     if(isSignalJets)
 707     {
 708       if (!IsSignalJetInAcceptance(jet)) continue;
 709     }
 710     else
 711     {
 712       if (!IsBackgroundJetInAcceptance(jet)) continue;
 713     }
 714
 715     if (jet->Pt() > maxJetPts[0])
 716     {
 717       maxJetPts[1] = maxJetPts[0];
 718       jetIDArray[1] = jetIDArray[0];
 719       maxJetPts[0] = jet->Pt();
 720       jetIDArray[0] = i;
 721     }
 722     else if (jet->Pt() > maxJetPts[1])
 723     {
 724       maxJetPts[1] = jet->Pt();
 725       jetIDArray[1] = i;
 726     }
 727     jetCountAccepted++;
 728   }
 729   return jetCountAccepted;
 730 }
 731
 732
 733 //________________________________________________________________________
 734 Double_t AliAnalysisTaskChargedJetsPA::GetCorrectedJetPt(AliEmcalJet* jet, Double_t background)
 735 {
 736   #ifdef DEBUGMODE
 737     AliInfo("Getting corrected jet spectra.");
 738   #endif
 739
 740   if(!jet)
 741   {
 742     AliError("Jet pointer passed to GetCorrectedJetPt() not valid!");
 743     return -1.0;
 744   }
 745
 746   Double_t correctedPt = -1.0;
 747
 748   // if the passed background is not valid, do not subtract it
 749   if(background < 0)
 750     background = 0;
 751
 752   // Subtract background
 753   correctedPt = jet->Pt() - background * jet->Area();
 754
 755   #ifdef DEBUGMODE
 756     AliInfo("Got corrected jet spectra.");
 757   #endif
 758
 759   return correctedPt;
 760 }
 761
 762
 763
 764 //________________________________________________________________________
 765 Double_t AliAnalysisTaskChargedJetsPA::GetDeltaPt(Double_t rho, Double_t leadingJetExclusionProbability)
 766 {
 767   #ifdef DEBUGMODE
 768     AliInfo("Getting Delta Pt.");
 769   #endif
 770
 771   // Define an invalid delta pt
 772   Double_t deltaPt = -10000.0;
 773
 774   // Define eta range
 775   Double_t etaMin, etaMax;
 776   etaMin = -(fTrackEtaWindow-fRandConeRadius);
 777   etaMax = +(fTrackEtaWindow-fRandConeRadius);
 778
 779   // Define random cone
 780   Bool_t coneValid = kTRUE;
 781   Double_t tmpRandConeEta = etaMin + fRandom->Rndm()*(etaMax-etaMin);
 782   Double_t tmpRandConePhi = fRandom->Rndm()*TMath::TwoPi();
 783
 784   // if there is a jet, check for overlap if demanded
 785   if(leadingJetExclusionProbability)
 786   {
 787     AliEmcalJet* tmpLeading = dynamic_cast<AliEmcalJet*>(fJetArray->At(0));
 788     // Get leading jet (regardless of pT)
 789     for (Int_t i = 1; i<fJetArray->GetEntries(); i++)
 790     {
 791       AliEmcalJet* tmpJet = static_cast<AliEmcalJet*>(fJetArray->At(i));
 792       // if jet is in acceptance and higher, take as new leading
 793       if (tmpJet)
 794         if ((TMath::Abs(tmpJet->Eta()) <= fSignalJetEtaWindow) && (tmpJet->Area() >= fMinJetArea))
 795           if((!tmpLeading) || (tmpJet->Pt() > tmpLeading->Pt()))
 796             tmpLeading = tmpJet;
 797     }
 798     if(tmpLeading)
 799     {
 800       Double_t excludedJetPhi = tmpLeading->Phi();
 801       Double_t excludedJetEta = tmpLeading->Eta();
 802       Double_t tmpDeltaPhi = GetDeltaPhi(tmpRandConePhi, excludedJetPhi);
 803
 804       // Check, if cone has overlap with jet
 805       if ( tmpDeltaPhi*tmpDeltaPhi + TMath::Abs(tmpRandConeEta-excludedJetEta)*TMath::Abs(tmpRandConeEta-excludedJetEta) <= fRandConeRadius*fRandConeRadius)
 806       {
 807         // Define probability to exclude the RC
 808         Double_t probability = leadingJetExclusionProbability;
 809
 810         // Only exclude cone with a given probability
 811         if (fRandom->Rndm()<=probability)
 812           coneValid = kFALSE;
 813       }
 814     }
 815   }
 816
 817
 818   // Get the cones' pt and calculate delta pt
 819   if (coneValid)
 820     deltaPt = GetConePt(tmpRandConeEta,tmpRandConePhi,fRandConeRadius) - (rho*fRandConeRadius*fRandConeRadius*TMath::Pi());
 821
 822   return deltaPt;
 823   #ifdef DEBUGMODE
 824     AliInfo("Got Delta Pt.");
 825   #endif
 826 }
 827
 828 //________________________________________________________________________
 829 void AliAnalysisTaskChargedJetsPA::GetKTBackgroundDensityAll(Int_t numberExcludeLeadingJets, Double_t& rhoPbPb, Double_t& rhoPbPbWithGhosts, Double_t& rhoCMS, Double_t& rhoImprovedCMS, Double_t& rhoMean, Double_t& rhoTrackLike)
 830 {
 831   #ifdef DEBUGMODE
 832     AliInfo("Getting ALL KT background density.");
 833   #endif
 834
 835   static Double_t tmpRhoPbPb[1024];
 836   static Double_t tmpRhoPbPbWithGhosts[1024];
 837   static Double_t tmpRhoMean[1024];
 838   static Double_t tmpRhoCMS[1024];
 839   static Double_t tmpRhoImprovedCMS[1024];
 840   Double_t tmpCoveredArea = 0.0;
 841   Double_t tmpSummedArea = 0.0;
 842   Double_t tmpPtTrackLike = 0.0;
 843   Double_t tmpAreaTrackLike = 0.0;
 844
 845   // Setting invalid values
 846   rhoPbPb = 0.0;
 847   rhoPbPbWithGhosts = 0.0;
 848   rhoCMS = 0.0;
 849   rhoImprovedCMS = 0.0;
 850   rhoMean = 0.0;
 851   rhoTrackLike = 0.0;
 852
 853   Int_t rhoPbPbJetCount = 0;
 854   Int_t rhoPbPbWithGhostsJetCount = 0;
 855   Int_t rhoCMSJetCount = 0;
 856   Int_t rhoImprovedCMSJetCount = 0;
 857   Int_t rhoMeanJetCount = 0;
 858
 859
 860   // Find 2 leading KT jets for the original PbPb approach
 861   Int_t leadingKTJets[]   = {-1, -1};
 862   GetLeadingJets(fBackgroundJetArray, &leadingKTJets[0], kFALSE);
 863
 864   // Exclude UP TO numberExcludeLeadingJets
 865   if(numberExcludeLeadingJets==-1)
 866     numberExcludeLeadingJets = fNumberSignalJets;
 867   if (fNumberSignalJets < numberExcludeLeadingJets)
 868     numberExcludeLeadingJets = fNumberSignalJets;
 869
 870   for (Int_t i = 0; i < fBackgroundJetArray->GetEntries(); i++)
 871   {
 872     AliEmcalJet* backgroundJet = static_cast<AliEmcalJet*>(fBackgroundJetArray->At(i));
 873
 874     if (!backgroundJet)
 875     {
 876       AliError(Form("%s: Could not receive jet %d", GetName(), i));
 877       continue;
 878     }
 879
 880     // Search for overlap with signal jets
 881     Bool_t isOverlapping = kFALSE;
 882     for(Int_t j=0;j<numberExcludeLeadingJets;j++)
 883     {
 884       AliEmcalJet* signalJet = fSignalJets[j];
 885
 886       if(IsJetOverlapping(signalJet, backgroundJet))
 887       {
 888         isOverlapping = kTRUE;
 889         break;
 890       }
 891     }
 892
 893     tmpSummedArea += backgroundJet->Area();
 894     if(backgroundJet->Pt() > 0.150)
 895       tmpCoveredArea += backgroundJet->Area();
 896
 897     if (!IsBackgroundJetInAcceptance(backgroundJet))
 898       continue;
 899
 900     Double_t tmpRho = 0.0;
 901     if(backgroundJet->Area())
 902       tmpRho = backgroundJet->Pt() / backgroundJet->Area();
 903
 904     // PbPb approach (take ghosts into account)
 905     if ((i != leadingKTJets[0]) && (i != leadingKTJets[1]))
 906     {
 907       tmpRhoPbPbWithGhosts[rhoPbPbWithGhostsJetCount] = tmpRho;
 908       rhoPbPbWithGhostsJetCount++;
 909     }
 910
 911     if(backgroundJet->Pt() > 0.150)
 912     {
 913       // CMS approach: don't take ghosts into acount
 914       tmpRhoCMS[rhoCMSJetCount] = tmpRho;
 915       rhoCMSJetCount++;
 916
 917       // Improved CMS approach: like CMS but excluding signal
 918       if(!isOverlapping)
 919       {
 920         tmpRhoImprovedCMS[rhoImprovedCMSJetCount] = tmpRho;
 921         rhoImprovedCMSJetCount++;
 922       }
 923
 924       // PbPb w/o ghosts approach (just neglect ghosts)
 925       if ((i != leadingKTJets[0]) && (i != leadingKTJets[1]))
 926       {
 927         tmpRhoPbPb[rhoPbPbJetCount] = tmpRho;
 928         rhoPbPbJetCount++;
 929       }
 930     }
 931
 932     // (no overlap with signal jets)
 933     if(!isOverlapping)
 934     {
 935       // Mean approach
 936       tmpRhoMean[rhoMeanJetCount] = tmpRho;
 937       rhoMeanJetCount++;
 938
 939       // Track like approach approach
 940       tmpPtTrackLike += backgroundJet->Pt();
 941       tmpAreaTrackLike += backgroundJet->Area();
 942     }
 943
 944   }
 945
 946   if (tmpAreaTrackLike > 0)
 947     rhoTrackLike = tmpPtTrackLike/tmpAreaTrackLike;
 948   if (rhoPbPbJetCount > 0)
 949     rhoPbPb = TMath::Median(rhoPbPbJetCount, tmpRhoPbPb);
 950   if (rhoPbPbWithGhostsJetCount > 0)
 951     rhoPbPbWithGhosts = TMath::Median(rhoPbPbWithGhostsJetCount, tmpRhoPbPbWithGhosts);
 952   if (rhoCMSJetCount > 0)
 953     rhoCMS = TMath::Median(rhoCMSJetCount, tmpRhoCMS) * tmpCoveredArea/tmpSummedArea;
 954   if (rhoImprovedCMSJetCount > 0)
 955   {
 956     rhoImprovedCMS = TMath::Median(rhoImprovedCMSJetCount, tmpRhoImprovedCMS) * tmpCoveredArea/tmpSummedArea;
 957   }
 958   if (rhoMeanJetCount > 0)
 959     rhoMean = TMath::Mean(rhoMeanJetCount, tmpRhoMean);
 960
 961   #ifdef DEBUGMODE
 962     AliInfo("Got ALL KT background density.");
 963   #endif
 964 }
 965
 966 //________________________________________________________________________
 967 void AliAnalysisTaskChargedJetsPA::GetKTBackgroundDensity(Int_t numberExcludeLeadingJets, Double_t& rhoImprovedCMS)
 968 {
 969   #ifdef DEBUGMODE
 970     AliInfo("Getting KT background density.");
 971   #endif
 972
 973   static Double_t tmpRhoImprovedCMS[1024];
 974   Double_t tmpCoveredArea = 0.0;
 975   Double_t tmpSummedArea = 0.0;
 976
 977   // Setting invalid values
 978   rhoImprovedCMS = 0.0;
 979
 980   Int_t rhoImprovedCMSJetCount = 0;
 981
 982   // Exclude UP TO numberExcludeLeadingJets
 983   if(numberExcludeLeadingJets==-1)
 984     numberExcludeLeadingJets = fNumberSignalJets;
 985   if (fNumberSignalJets < numberExcludeLeadingJets)
 986     numberExcludeLeadingJets = fNumberSignalJets;
 987
 988   for (Int_t i = 0; i < fBackgroundJetArray->GetEntries(); i++)
 989   {
 990     AliEmcalJet* backgroundJet = static_cast<AliEmcalJet*>(fBackgroundJetArray->At(i));
 991
 992     if (!backgroundJet)
 993     {
 994       AliError(Form("%s: Could not receive jet %d", GetName(), i));
 995       continue;
 996     }
 997
 998     // Search for overlap with signal jets
 999     Bool_t isOverlapping = kFALSE;
1000     for(Int_t j=0;j<numberExcludeLeadingJets;j++)
1001     {
1002       AliEmcalJet* signalJet = fSignalJets[j];
1003
1004       if(IsJetOverlapping(signalJet, backgroundJet))
1005       {
1006         isOverlapping = kTRUE;
1007         break;
1008       }
1009     }
1010
1011     tmpSummedArea += backgroundJet->Area();
1012     if(backgroundJet->Pt() > 0.150)
1013       tmpCoveredArea += backgroundJet->Area();
1014
1015     if (!IsBackgroundJetInAcceptance(backgroundJet))
1016       continue;
1017
1018     Double_t tmpRho = backgroundJet->Pt() / backgroundJet->Area();
1019
1020     if(backgroundJet->Pt() > 0.150)
1021       if(!isOverlapping)
1022       {
1023         tmpRhoImprovedCMS[rhoImprovedCMSJetCount] = tmpRho;
1024         rhoImprovedCMSJetCount++;
1025       }
1026   }
1027
1028   if (rhoImprovedCMSJetCount > 0)
1029   {
1030     rhoImprovedCMS = TMath::Median(rhoImprovedCMSJetCount, tmpRhoImprovedCMS) * tmpCoveredArea/tmpSummedArea;
1031   }
1032   #ifdef DEBUGMODE
1033     AliInfo("Got KT background density.");
1034   #endif
1035 }
1036
1037
1038 //________________________________________________________________________
1039 void AliAnalysisTaskChargedJetsPA::GetTRBackgroundDensity(Int_t numberExcludeLeadingJets, Double_t& rhoNoExclusion, Double_t& rhoConeExclusion02, Double_t& rhoConeExclusion04, Double_t& rhoConeExclusion06, Double_t& rhoConeExclusion08, Double_t& rhoExactExclusion)
1040 {
1041   #ifdef DEBUGMODE
1042     AliInfo("Getting TR background density.");
1043   #endif
1044
1045   Double_t summedTracksPtCone04 = 0.0;
1046   Double_t summedTracksPtCone02 = 0.0;
1047   Double_t summedTracksPtCone06 = 0.0;
1048   Double_t summedTracksPtCone08 = 0.0;
1049   Double_t summedTracksPtWithinJets = 0.0;
1050   Double_t summedTracksPt = 0.0;
1051
1052   // Setting invalid values
1053   rhoNoExclusion = 0.0;
1054   rhoConeExclusion02 = 0.0;
1055   rhoConeExclusion04 = 0.0;
1056   rhoConeExclusion06 = 0.0;
1057   rhoConeExclusion08 = 0.0;
1058   rhoExactExclusion  = 0.0;
1059
1060   // Exclude UP TO numberExcludeLeadingJets
1061   if(numberExcludeLeadingJets==-1)
1062     numberExcludeLeadingJets = fNumberSignalJets;
1063   if (fNumberSignalJets < numberExcludeLeadingJets)
1064     numberExcludeLeadingJets = fNumberSignalJets;
1065
1066   for (Int_t i = 0; i < fTrackArray->GetEntries(); i++)
1067   {
1068     AliVTrack* tmpTrack = static_cast<AliVTrack*>(fTrackArray->At(i));
1069     Bool_t trackWithinJet = kFALSE; Bool_t trackWithin02Cone = kFALSE; Bool_t trackWithin04Cone = kFALSE; Bool_t trackWithin06Cone = kFALSE; Bool_t trackWithin08Cone = kFALSE;
1070
1071     if (IsTrackInAcceptance(tmpTrack))
1072     {
1073       // Check if tracks overlaps with jet
1074       for(Int_t j=0;j<numberExcludeLeadingJets;j++)
1075       {
1076         AliEmcalJet* signalJet = fSignalJets[j];
1077
1078         // Exact jet exclusion
1079         if (IsTrackInJet(signalJet, i))
1080           trackWithinJet = kTRUE;
1081
1082         // Cone exclusions
1083         if (IsTrackInCone(tmpTrack, signalJet->Eta(), signalJet->Phi(), 0.2))
1084         {
1085           trackWithin02Cone = kTRUE;
1086           trackWithin04Cone = kTRUE;
1087           trackWithin06Cone = kTRUE;
1088           trackWithin08Cone = kTRUE;
1089           break;
1090         }
1091         else if (IsTrackInCone(tmpTrack, signalJet->Eta(), signalJet->Phi(), 0.4))
1092         {
1093           trackWithin04Cone = kTRUE;
1094           trackWithin06Cone = kTRUE;
1095           trackWithin08Cone = kTRUE;
1096         }
1097         else if (IsTrackInCone(tmpTrack, signalJet->Eta(), signalJet->Phi(), 0.6))
1098         {
1099           trackWithin06Cone = kTRUE;
1100           trackWithin08Cone = kTRUE;
1101         }
1102         else if (IsTrackInCone(tmpTrack, signalJet->Eta(), signalJet->Phi(), 0.8))
1103         {
1104           trackWithin08Cone = kTRUE;
1105         }
1106       }
1107
1108       if(!trackWithin08Cone)
1109       {
1110         summedTracksPtCone08 += tmpTrack->Pt();
1111       }
1112       if(!trackWithin06Cone)
1113       {
1114         summedTracksPtCone06 += tmpTrack->Pt();
1115       }
1116       if(!trackWithin04Cone)
1117       {
1118         summedTracksPtCone04 += tmpTrack->Pt();
1119       }
1120       if(!trackWithin02Cone)
1121       {
1122         summedTracksPtCone02 += tmpTrack->Pt();
1123       }
1124       if(!trackWithinJet)
1125       {
1126         summedTracksPtWithinJets += tmpTrack->Pt();
1127       }
1128       summedTracksPt += tmpTrack->Pt();
1129
1130     }
1131   }
1132
1133   // Calculate the correct area where the tracks were taking from
1134
1135   Double_t tmpFullTPCArea = (2.0*fTrackEtaWindow) * TMath::TwoPi();
1136   Double_t tmpAreaCone02     = tmpFullTPCArea;
1137   Double_t tmpAreaCone04     = tmpFullTPCArea;
1138   Double_t tmpAreaCone06     = tmpFullTPCArea;
1139   Double_t tmpAreaCone08     = tmpFullTPCArea;
1140   Double_t tmpAreaWithinJets = tmpFullTPCArea;
1141   std::vector<Double_t> tmpEtas(numberExcludeLeadingJets);
1142   std::vector<Double_t> tmpPhis(numberExcludeLeadingJets);
1143
1144   for(Int_t i=0;i<numberExcludeLeadingJets;i++)
1145   {
1146     AliEmcalJet* tmpJet = fSignalJets[i];
1147     tmpEtas[i] = tmpJet->Eta();
1148     tmpPhis[i] = tmpJet->Phi();
1149     tmpAreaWithinJets -= tmpJet->Area();
1150   }
1151
1152   tmpAreaCone02 -= tmpFullTPCArea * MCGetOverlapMultipleCirclesRectancle(numberExcludeLeadingJets, tmpEtas, tmpPhis, 0.2, -fTrackEtaWindow, +fTrackEtaWindow, 0., TMath::TwoPi());
1153   tmpAreaCone04 -= tmpFullTPCArea * MCGetOverlapMultipleCirclesRectancle(numberExcludeLeadingJets, tmpEtas, tmpPhis, 0.4, -fTrackEtaWindow, +fTrackEtaWindow, 0., TMath::TwoPi());
1154   tmpAreaCone06 -= tmpFullTPCArea * MCGetOverlapMultipleCirclesRectancle(numberExcludeLeadingJets, tmpEtas, tmpPhis, 0.6, -fTrackEtaWindow, +fTrackEtaWindow, 0., TMath::TwoPi());
1155   tmpAreaCone08 -= tmpFullTPCArea * MCGetOverlapMultipleCirclesRectancle(numberExcludeLeadingJets, tmpEtas, tmpPhis, 0.8, -fTrackEtaWindow, +fTrackEtaWindow, 0., TMath::TwoPi());
1156
1157   rhoConeExclusion02 = summedTracksPtCone02/tmpAreaCone02;
1158   rhoConeExclusion04 = summedTracksPtCone04/tmpAreaCone04;
1159   rhoConeExclusion06 = summedTracksPtCone06/tmpAreaCone06;
1160   rhoConeExclusion08 = summedTracksPtCone08/tmpAreaCone08;
1161   rhoExactExclusion  = summedTracksPtWithinJets/tmpAreaWithinJets;
1162   rhoNoExclusion     = summedTracksPt/tmpFullTPCArea;
1163
1164
1165   #ifdef DEBUGMODE
1166     AliInfo("Got TR background density.");
1167   #endif
1168 }
1169
1170 //________________________________________________________________________
1171 void AliAnalysisTaskChargedJetsPA::GetTRBackgroundDensity(Int_t numberExcludeLeadingJets, Double_t& rhoMean, Double_t& area, AliEmcalJet* excludeJet1, AliEmcalJet* excludeJet2, Bool_t doSearchPerpendicular)
1172 {
1173   #ifdef DEBUGMODE
1174     AliInfo("Getting TR background density.");
1175   #endif
1176
1177   // Setting invalid values
1178   Double_t summedTracksPt = 0.0;
1179   rhoMean = 0.0;
1180   area = -1.0;
1181
1182   Double_t tmpRadius = 0.0;
1183   if (doSearchPerpendicular)
1184     tmpRadius = 0.4*TMath::Pi(); // exclude 90 degrees around jets
1185   else
1186     tmpRadius = 0.8;
1187
1188   numberExcludeLeadingJets = 2; // dijet is excluded here in any case
1189
1190
1191
1192   if (!fTrackArray || !fJetArray)
1193   {
1194     AliError("Could not get the track/jet array to calculate track rho!");
1195     return;
1196   }
1197
1198   Int_t   trackCount = fTrackArray->GetEntries();
1199   Int_t   trackCountAccepted = 0;
1200   for (Int_t i = 0; i < trackCount; i++)
1201   {
1202     AliVTrack* tmpTrack = static_cast<AliVTrack*>(fTrackArray->At(i));
1203     if (IsTrackInAcceptance(tmpTrack))
1204     {
1205       if (IsTrackInCone(tmpTrack, excludeJet1->Eta(), excludeJet1->Phi(), tmpRadius))
1206         continue;
1207
1208       if (numberExcludeLeadingJets > 1)
1209         if (IsTrackInCone(tmpTrack, excludeJet2->Eta(), excludeJet2->Phi(), tmpRadius))
1210           continue;
1211
1212         // Add track pt to array
1213         summedTracksPt = summedTracksPt + tmpTrack->Pt();
1214         trackCountAccepted++;
1215     }
1216   }
1217
1218   if (trackCountAccepted > 0)
1219   {
1220     Double_t tmpArea = 2.0*fTrackEtaWindow*TMath::TwoPi()  - 2*(tmpRadius*tmpRadius * TMath::Pi()); //TPC area - excluding jet area
1221     rhoMean = summedTracksPt/tmpArea;
1222     area = tmpArea;
1223   }
1224
1225   #ifdef DEBUGMODE
1226     AliInfo("Got TR background density.");
1227   #endif
1228 }
1229
1230 //________________________________________________________________________
1231 void AliAnalysisTaskChargedJetsPA::Calculate(AliVEvent* event)
1232 {
1233   #ifdef DEBUGMODE
1234     AliInfo("Starting Calculate().");
1235   #endif
1236   ////////////////////// NOTE: initialization & casting
1237
1238   fEventCounter++;
1239
1240   // Check, if analysis should be done in pt hard bins
1241   if(fUsePtHardBin != -1)
1242     if(GetPtHardBin() != fUsePtHardBin)
1243       return;
1244
1245   // This is to take only every Nth event
1246   if((fEventCounter+fPartialAnalysisIndex) % fPartialAnalysisNParts != 0)
1247     return;
1248
1249   FillHistogram("hNumberEvents",0.5);
1250
1251   if(!IsEventInAcceptance(event))
1252     return;
1253
1254   FillHistogram("hNumberEvents",1.5);
1255
1256   #ifdef DEBUGMODE
1257     AliInfo("Calculate()::Init done.");
1258   #endif
1259
1260   ////////////////////// NOTE: Get Centrality, (Leading)Signal jets and Background
1261
1262   // Get centrality
1263   AliCentrality* tmpCentrality = NULL;
1264   tmpCentrality = event->GetCentrality();
1265   Double_t centralityPercentile = -1.0;
1266   Double_t centralityPercentileV0A = 0.0;
1267   Double_t centralityPercentileV0C = 0.0;
1268   Double_t centralityPercentileV0M = 0.0;
1269   if (tmpCentrality != NULL)
1270   {
1271     centralityPercentile = tmpCentrality->GetCentralityPercentile(fCentralityType.Data());
1272     centralityPercentileV0A = tmpCentrality->GetCentralityPercentile("V0A");
1273     centralityPercentileV0C = tmpCentrality->GetCentralityPercentile("V0C");
1274     centralityPercentileV0M = tmpCentrality->GetCentralityPercentile("V0M");
1275   }
1276
1277   if((centralityPercentile < 0.0) || (centralityPercentile > 100.0))
1278     AliWarning(Form("Centrality value not valid (c=%E)",centralityPercentile));
1279
1280   if(fSetCentralityToOne)
1281     centralityPercentile = 1.0;
1282
1283   // Get jets
1284   if (fAnalyzeBackground || fAnalyzeJets)
1285     GetSignalJets();
1286
1287   // Get background estimates
1288   Double_t              backgroundKTImprovedCMS = -1.0;
1289   Double_t              backgroundKTImprovedCMSExternal = -1.0;
1290   Double_t              backgroundDijet = -1.0;
1291   Double_t              backgroundDijetPerpendicular = -1.0;
1292
1293   Double_t              backgroundKTPbPb = -1.0;
1294   Double_t              backgroundKTPbPbWithGhosts = -1.0;
1295   Double_t              backgroundKTCMS = -1.0;
1296   Double_t              backgroundKTMean = -1.0;
1297   Double_t              backgroundKTTrackLike = -1.0;
1298   Double_t              backgroundTRNoExcl = -1.0;
1299   Double_t              backgroundTRCone02 = -1.0;
1300   Double_t              backgroundTRCone04 = -1.0;
1301   Double_t              backgroundTRCone06 = -1.0;
1302   Double_t              backgroundTRCone08 = -1.0;
1303   Double_t              backgroundTRExact  = -1.0;
1304
1305   // Calculate background for different jet exclusions
1306
1307   if (fAnalyzeBackground)
1308   {
1309
1310     if(fAnalyzeDeprecatedBackgrounds)
1311       GetKTBackgroundDensityAll    (fNumberExcludedJets, backgroundKTPbPb, backgroundKTPbPbWithGhosts, backgroundKTCMS, backgroundKTImprovedCMS, backgroundKTMean, backgroundKTTrackLike);
1312     else
1313       GetKTBackgroundDensity       (fNumberExcludedJets, backgroundKTImprovedCMS);
1314
1315     if(fAnalyzeDeprecatedBackgrounds)
1316       GetTRBackgroundDensity    (fNumberExcludedJets, backgroundTRNoExcl, backgroundTRCone02, backgroundTRCone04, backgroundTRCone06, backgroundTRCone08, backgroundTRExact);
1317
1318     backgroundKTImprovedCMSExternal = GetExternalRho();
1319   }
1320
1321   #ifdef DEBUGMODE
1322     AliInfo("Calculate()::Centrality&SignalJets&Background-Calculation done.");
1323   #endif
1324
1325   if (fAnalyzeQA)
1326   {
1327     FillHistogram("hVertexX",event->GetPrimaryVertex()->GetX());
1328     FillHistogram("hVertexY",event->GetPrimaryVertex()->GetY());
1329     FillHistogram("hVertexXY",event->GetPrimaryVertex()->GetX(), event->GetPrimaryVertex()->GetY());
1330     FillHistogram("hVertexR",TMath::Sqrt(event->GetPrimaryVertex()->GetX()*event->GetPrimaryVertex()->GetX() + event->GetPrimaryVertex()->GetY()*event->GetPrimaryVertex()->GetY()));
1331     FillHistogram("hCentralityV0M",centralityPercentileV0M);
1332     FillHistogram("hCentralityV0A",centralityPercentileV0A);
1333     FillHistogram("hCentralityV0C",centralityPercentileV0C);
1334     FillHistogram("hCentrality",centralityPercentile);
1335
1336     Int_t trackCountAcc = 0;
1337     Int_t nTracks = fTrackArray->GetEntries();
1338     for (Int_t i = 0; i < nTracks; i++)
1339     {
1340       AliVTrack* track = static_cast<AliVTrack*>(fTrackArray->At(i));
1341
1342       if (track != 0)
1343         if (track->Pt() >= fMinTrackPt)
1344           FillHistogram("hTrackPhiEta", track->Phi(),track->Eta(), 1);
1345
1346       if (IsTrackInAcceptance(track))
1347       {
1348         FillHistogram("hTrackPt", track->Pt(), centralityPercentile);
1349         if(track->Eta() >= 0)
1350           FillHistogram("hTrackPtPosEta", track->Pt(), centralityPercentile);
1351         else
1352           FillHistogram("hTrackPtNegEta", track->Pt(), centralityPercentile);
1353
1354         FillHistogram("hTrackEta", track->Eta(), centralityPercentile);
1355         FillHistogram("hTrackPhi", track->Phi());
1356
1357         if(static_cast<AliPicoTrack*>(track))
1358         {
1359           FillHistogram("hTrackPhiTrackType", track->Phi(), (static_cast<AliPicoTrack*>(track))->GetTrackType());
1360           FillHistogram("hTrackPhiLabel", track->Phi(), (static_cast<AliPicoTrack*>(track))->GetLabel());
1361         }
1362         for(Int_t j=0;j<20;j++)
1363           if(track->Pt() > j)
1364             FillHistogram("hTrackPhiPtCut", track->Phi(), track->Pt());
1365
1366         FillHistogram("hTrackCharge", track->Charge());
1367         trackCountAcc++;
1368       }
1369     }
1370     FillHistogram("hTrackCountAcc", trackCountAcc, centralityPercentile);
1371
1372   }
1373   #ifdef DEBUGMODE
1374     AliInfo("Calculate()::QA done.");
1375   #endif
1376
1377   ////////////////////// NOTE: Jet analysis and calculations
1378
1379   if (fAnalyzeJets)
1380   {
1381     for (Int_t i = 0; i<fJetArray->GetEntries(); i++)
1382     {
1383       AliEmcalJet* tmpJet = static_cast<AliEmcalJet*>(fJetArray->At(i));
1384       if (!tmpJet)
1385         continue;
1386
1387       FillHistogram("hRawJetPt", tmpJet->Pt());
1388       if (tmpJet->Pt() >= fMinJetPt)
1389       {
1390       // ### RAW JET ANALYSIS
1391         if (tmpJet->Area() >= fMinJetArea)
1392           FillHistogram("hRawJetPhiEta", tmpJet->Phi(), tmpJet->Eta());
1393         if (TMath::Abs(tmpJet->Eta()) <= fSignalJetEtaWindow)
1394           FillHistogram("hRawJetArea", tmpJet->Area());
1395       }
1396
1397       if(IsSignalJetInAcceptance(tmpJet))
1398       {
1399       // ### SIGNAL JET ANALYSIS
1400         // Jet spectra
1401         FillHistogram("hJetPt", tmpJet->Pt(), centralityPercentile);
1402         FillHistogram("hJetPtBgrdSubtractedKTImprovedCMS", GetCorrectedJetPt(tmpJet, backgroundKTImprovedCMS), centralityPercentile);
1403         FillHistogram("hJetPtSubtractedRhoKTImprovedCMS", tmpJet->Pt(), centralityPercentile, backgroundKTImprovedCMS);
1404         if(centralityPercentile<=20.0)
1405           FillHistogram("hJetPtSubtractedRhoKTImprovedCMS020", tmpJet->Pt(), backgroundKTImprovedCMS);
1406
1407         if(fAnalyzeDeprecatedBackgrounds)
1408         {
1409           FillHistogram("hJetPtBgrdSubtractedTR", GetCorrectedJetPt(tmpJet, backgroundTRCone06), centralityPercentile);
1410           FillHistogram("hJetPtBgrdSubtractedKTPbPb", GetCorrectedJetPt(tmpJet, backgroundKTPbPb), centralityPercentile);
1411           FillHistogram("hJetPtBgrdSubtractedKTPbPbWithGhosts", GetCorrectedJetPt(tmpJet, backgroundKTPbPbWithGhosts), centralityPercentile);
1412           FillHistogram("hJetPtBgrdSubtractedKTCMS", GetCorrectedJetPt(tmpJet, backgroundKTCMS), centralityPercentile);
1413           FillHistogram("hJetPtBgrdSubtractedKTMean", GetCorrectedJetPt(tmpJet, backgroundKTMean), centralityPercentile);
1414           FillHistogram("hJetPtBgrdSubtractedKTTrackLike", GetCorrectedJetPt(tmpJet, backgroundKTTrackLike), centralityPercentile);
1415         }
1416
1417         for(Int_t j=0; j<tmpJet->GetNumberOfTracks(); j++)
1418           FillHistogram("hJetConstituentPt", tmpJet->TrackAt(j, fTrackArray)->Pt(), centralityPercentile);
1419
1420         if(fAnalyzeQA)
1421         {
1422           FillHistogram("hJetArea", tmpJet->Area());
1423           FillHistogram("hJetPtVsConstituentCount", tmpJet->Pt(),tmpJet->GetNumberOfTracks());
1424           FillHistogram("hJetPhiEta", tmpJet->Phi(),tmpJet->Eta());
1425           FillHistogram("hJetEta", tmpJet->Eta(), centralityPercentile);
1426         }
1427         // Signal jet vs. signal jet - "Combinatorial"
1428         for (Int_t j = i+1; j<fNumberSignalJets; j++)
1429           FillHistogram("hJetDeltaPhi", GetDeltaPhi(tmpJet->Phi(), fSignalJets[j]->Phi()));
1430       }
1431     }
1432
1433     // ### DIJETS
1434     if(fNumberSignalJets >= 2)
1435     {
1436       FillHistogram("hLeadingJetDeltaPhi", GetDeltaPhi(fFirstLeadingJet->Phi(), fSecondLeadingJet->Phi()));
1437
1438       if (IsDijet(fFirstLeadingJet, fSecondLeadingJet))
1439       {
1440         FillHistogram("hDijetConstituentsPt", fFirstLeadingJet->Pt());
1441         FillHistogram("hDijetConstituentsPt", fSecondLeadingJet->Pt());
1442
1443         FillHistogram("hDijetLeadingJetPt", fFirstLeadingJet->Pt());
1444         FillHistogram("hDijetPtCorrelation", fFirstLeadingJet->Pt(), fSecondLeadingJet->Pt());
1445         Double_t dummyArea = 0;
1446         GetTRBackgroundDensity (2, backgroundDijet, dummyArea, fFirstLeadingJet, fSecondLeadingJet, kFALSE);
1447         GetTRBackgroundDensity (2, backgroundDijetPerpendicular, dummyArea, fFirstLeadingJet, fSecondLeadingJet, kTRUE);
1448       }
1449     }
1450
1451     // ### SOME JET PLOTS
1452     FillHistogram("hJetCountAll", fJetArray->GetEntries());
1453     FillHistogram("hJetCountAccepted", fNumberSignalJets);
1454     FillHistogram("hJetCount", fJetArray->GetEntries(), fNumberSignalJets);
1455     if (fFirstLeadingJet)
1456     {
1457       FillHistogram("hLeadingJetPt", fFirstLeadingJet->Pt());
1458       FillHistogram("hCorrectedLeadingJetPt", GetCorrectedJetPt(fFirstLeadingJet,backgroundKTImprovedCMS));
1459     }
1460     if (fSecondLeadingJet)
1461     {
1462       FillHistogram("hSecondLeadingJetPt", fSecondLeadingJet->Pt());
1463       FillHistogram("hCorrectedSecondLeadingJetPt", GetCorrectedJetPt(fSecondLeadingJet,backgroundKTImprovedCMS));
1464     }
1465
1466   } //endif AnalyzeJets
1467
1468   #ifdef DEBUGMODE
1469     AliInfo("Calculate()::Jets done.");
1470   #endif
1471   ////////////////////// NOTE: Background analysis
1472
1473   if (fAnalyzeBackground)
1474   {
1475     // Calculate background in centrality classes
1476     FillHistogram("hKTBackgroundImprovedCMS", backgroundKTImprovedCMS, centralityPercentile);
1477
1478     FillHistogram("hKTBackgroundImprovedCMSExternal", backgroundKTImprovedCMSExternal, centralityPercentile);
1479
1480     FillHistogram("hKTMeanBackgroundImprovedCMS", centralityPercentile, backgroundKTImprovedCMS);
1481
1482     // In case of dijets -> look at the background
1483     if (backgroundDijet >= 0)
1484       FillHistogram("hDijetBackground", backgroundDijet, centralityPercentile);
1485     if (backgroundDijetPerpendicular >= 0)
1486       FillHistogram("hDijetBackgroundPerpendicular", backgroundDijetPerpendicular, centralityPercentile);
1487
1488     if(fAnalyzeDeprecatedBackgrounds)
1489     {
1490       FillHistogram("hKTBackgroundPbPb", backgroundKTPbPb, centralityPercentile);
1491       FillHistogram("hKTBackgroundPbPbWithGhosts", backgroundKTPbPbWithGhosts, centralityPercentile);
1492       FillHistogram("hKTBackgroundCMS", backgroundKTCMS, centralityPercentile);
1493       FillHistogram("hKTBackgroundMean", backgroundKTMean, centralityPercentile);
1494       FillHistogram("hKTBackgroundTrackLike", backgroundKTTrackLike, centralityPercentile);
1495
1496       FillHistogram("hTRBackgroundNoExcl", backgroundTRNoExcl, centralityPercentile);
1497       FillHistogram("hTRBackgroundCone02", backgroundTRCone02, centralityPercentile);
1498       FillHistogram("hTRBackgroundCone04", backgroundTRCone04, centralityPercentile);
1499       FillHistogram("hTRBackgroundCone06", backgroundTRCone06, centralityPercentile);
1500       FillHistogram("hTRBackgroundCone08", backgroundTRCone08, centralityPercentile);
1501       FillHistogram("hTRBackgroundExact", backgroundTRExact, centralityPercentile);
1502
1503       // Calculate background profiles in terms of centrality
1504       FillHistogram("hKTMeanBackgroundPbPb", centralityPercentile,  backgroundKTPbPb);
1505       FillHistogram("hKTMeanBackgroundPbPbWithGhosts", centralityPercentile,  backgroundKTPbPbWithGhosts);
1506       FillHistogram("hKTMeanBackgroundCMS", centralityPercentile, backgroundKTCMS);
1507       FillHistogram("hKTMeanBackgroundMean", centralityPercentile, backgroundKTMean);
1508       FillHistogram("hKTMeanBackgroundTPC", centralityPercentile, backgroundKTTrackLike);
1509       FillHistogram("hTRMeanBackground", centralityPercentile,  backgroundTRCone06);
1510     }
1511
1512
1513     // Calculate the delta pt
1514     Double_t tmpDeltaPtNoBackground = GetDeltaPt(0.0);
1515     Double_t tmpDeltaPtKTImprovedCMS = GetDeltaPt(backgroundKTImprovedCMS);
1516
1517     Double_t tmpDeltaPtKTImprovedCMSPartialExclusion = 0.0;
1518     if(fNcoll)
1519       tmpDeltaPtKTImprovedCMSPartialExclusion = GetDeltaPt(backgroundKTImprovedCMS, 1.0/fNcoll);
1520     else
1521       tmpDeltaPtKTImprovedCMSPartialExclusion = GetDeltaPt(backgroundKTImprovedCMS, 1.0);
1522
1523     Double_t tmpDeltaPtKTImprovedCMSPartialExclusion_Signal = 0.0;
1524     if(fNumberSignalJets)
1525       tmpDeltaPtKTImprovedCMSPartialExclusion_Signal = GetDeltaPt(backgroundKTImprovedCMS, 1.0/fNumberSignalJets);
1526     else
1527       tmpDeltaPtKTImprovedCMSPartialExclusion_Signal = GetDeltaPt(backgroundKTImprovedCMS, 1.0);
1528
1529     Double_t tmpDeltaPtKTImprovedCMSFullExclusion = GetDeltaPt(backgroundKTImprovedCMS, 1.0);
1530
1531     Double_t tmpDeltaPtKTPbPb = 0;
1532     Double_t tmpDeltaPtKTPbPbWithGhosts = 0;
1533     Double_t tmpDeltaPtKTCMS = 0;
1534     Double_t tmpDeltaPtKTMean = 0;
1535     Double_t tmpDeltaPtKTTrackLike = 0;
1536     Double_t tmpDeltaPtTR = 0;
1537
1538     if(fAnalyzeDeprecatedBackgrounds)
1539     {
1540       tmpDeltaPtKTPbPb = GetDeltaPt(backgroundKTPbPb);
1541       tmpDeltaPtKTPbPbWithGhosts = GetDeltaPt(backgroundKTPbPbWithGhosts);
1542       tmpDeltaPtKTCMS = GetDeltaPt(backgroundKTCMS);
1543       tmpDeltaPtKTMean = GetDeltaPt(backgroundKTMean);
1544       tmpDeltaPtKTTrackLike = GetDeltaPt(backgroundKTTrackLike);
1545       tmpDeltaPtTR = GetDeltaPt(backgroundTRCone06);
1546     }
1547
1548     // If valid, fill the delta pt histograms
1549
1550     if(tmpDeltaPtKTImprovedCMS > -10000.0)
1551       FillHistogram("hDeltaPtKTImprovedCMS", tmpDeltaPtKTImprovedCMS, centralityPercentile);
1552     if(tmpDeltaPtKTImprovedCMSPartialExclusion > -10000.0)
1553       FillHistogram("hDeltaPtKTImprovedCMSPartialExclusion", tmpDeltaPtKTImprovedCMSPartialExclusion, centralityPercentile);
1554     if(tmpDeltaPtKTImprovedCMSPartialExclusion_Signal > -10000.0)
1555       FillHistogram("hDeltaPtKTImprovedCMSPartialExclusion_Signal", tmpDeltaPtKTImprovedCMSPartialExclusion_Signal, centralityPercentile);
1556     if(tmpDeltaPtKTImprovedCMSFullExclusion > -10000.0)
1557       FillHistogram("hDeltaPtKTImprovedCMSFullExclusion", tmpDeltaPtKTImprovedCMSFullExclusion, centralityPercentile);
1558
1559     if(tmpDeltaPtNoBackground > 0.000001)
1560       FillHistogram("hDeltaPtNoBackgroundNoEmptyCones", tmpDeltaPtNoBackground, centralityPercentile);
1561     else if(tmpDeltaPtNoBackground > -10000.0)
1562       FillHistogram("hDeltaPtNoBackground", tmpDeltaPtNoBackground, centralityPercentile);
1563
1564
1565     if(fAnalyzeDeprecatedBackgrounds)
1566     {
1567       if(tmpDeltaPtKTPbPb > -10000.0)
1568         FillHistogram("hDeltaPtKTPbPb", tmpDeltaPtKTPbPb, centralityPercentile);
1569       if(tmpDeltaPtKTPbPbWithGhosts > -10000.0)
1570         FillHistogram("hDeltaPtKTPbPbWithGhosts", tmpDeltaPtKTPbPbWithGhosts, centralityPercentile);
1571       if(tmpDeltaPtKTCMS > -10000.0)
1572         FillHistogram("hDeltaPtKTCMS", tmpDeltaPtKTCMS, centralityPercentile);
1573       if(tmpDeltaPtKTMean > -10000.0)
1574         FillHistogram("hDeltaPtKTMean", tmpDeltaPtKTMean, centralityPercentile);
1575       if(tmpDeltaPtKTTrackLike > -10000.0)
1576         FillHistogram("hDeltaPtKTTrackLike", tmpDeltaPtKTTrackLike, centralityPercentile);
1577
1578       if(tmpDeltaPtTR > -10000.0)
1579         FillHistogram("hDeltaPtTR", tmpDeltaPtTR, centralityPercentile);
1580     }
1581   }
1582
1583   #ifdef DEBUGMODE
1584     AliInfo("Calculate()::Background done.");
1585   #endif
1586
1587   ////////////////////// NOTE: Pythia histograms
1588   if(fAnalyzePythia)
1589   {
1590     FillHistogram("hPythiaPtHard", GetPtHard());
1591     FillHistogram("hPythiaNTrials", GetPtHardBin()+0.1, GetPythiaTrials());
1592     FillHistogram("hPythiaXSection", GetPtHardBin()+0.1, fCrossSection);
1593
1594         #ifdef DEBUGMODE
1595       AliInfo("Calculate()::Pythia done.");
1596     #endif
1597   }
1598   #ifdef DEBUGMODE
1599     AliInfo("Calculate() done.");
1600   #endif
1601 }
1602
1603 //________________________________________________________________________
1604 Bool_t AliAnalysisTaskChargedJetsPA::UserNotify()
1605 {
1606   // Implemented Notify() to read the cross sections
1607   // and number of trials from pyxsec.root
1608   //
1609   #ifdef DEBUGMODE
1610     AliInfo("UserNotify started.");
1611   #endif
1612
1613   if(fAnalyzePythia)
1614   {
1615     TTree *tree = AliAnalysisManager::GetAnalysisManager()->GetTree();
1616     TFile *currFile = tree->GetCurrentFile();
1617
1618     TString file(currFile->GetName());
1619
1620     if(file.Contains("root_archive.zip#")){
1621       Ssiz_t pos1 = file.Index("root_archive",12,TString::kExact);
1622       Ssiz_t pos = file.Index("#",1,pos1,TString::kExact);
1623       file.Replace(pos+1,20,"");
1624     }
1625     else {
1626       // not an archive take the basename....
1627       file.ReplaceAll(gSystem->BaseName(file.Data()),"");
1628     }
1629
1630     TFile *fxsec = TFile::Open(Form("%s%s",file.Data(),"pyxsec.root")); // problem that we cannot really test the existance of a file in a archive so we have to lvie with open error message from root
1631     if(!fxsec){
1632       // next trial fetch the histgram file
1633       fxsec = TFile::Open(Form("%s%s",file.Data(),"pyxsec_hists.root"));
1634       if(!fxsec){
1635           // not a severe condition but inciate that we have no information
1636         return kFALSE;
1637       }
1638       else{
1639         // find the tlist we want to be independtent of the name so use the Tkey
1640         TKey* key = (TKey*)fxsec->GetListOfKeys()->At(0);
1641         if(!key){
1642           fxsec->Close();
1643           return kFALSE;
1644         }
1645         TList *list = dynamic_cast<TList*>(key->ReadObj());
1646         if(!list){
1647           fxsec->Close();
1648           return kFALSE;
1649         }
1650         fCrossSection = ((TProfile*)list->FindObject("h1Xsec"))->GetBinContent(1);
1651         fTrials  = ((TH1F*)list->FindObject("h1Trials"))->GetBinContent(1);
1652         fxsec->Close();
1653       }
1654     } // no tree pyxsec.root
1655     else {
1656       TTree *xtree = (TTree*)fxsec->Get("Xsection");
1657       if(!xtree){
1658         fxsec->Close();
1659         return kFALSE;
1660       }
1661       UInt_t   ntrials  = 0;
1662       Double_t  xsection  = 0;
1663       xtree->SetBranchAddress("xsection",&xsection);
1664       xtree->SetBranchAddress("ntrials",&ntrials);
1665       xtree->GetEntry(0);
1666       fTrials = ntrials;
1667       fCrossSection = xsection;
1668       fxsec->Close();
1669     }
1670   }
1671   #ifdef DEBUGMODE
1672     AliInfo("UserNotify ended.");
1673   #endif
1674   return kTRUE;
1675 }
1676
1677
1678 //________________________________________________________________________
1679 inline Double_t AliAnalysisTaskChargedJetsPA::EtaToTheta(Double_t arg)
1680   {return 2.*atan(exp(-arg));}
1681 //________________________________________________________________________
1682 inline Double_t AliAnalysisTaskChargedJetsPA::ThetaToEta(Double_t arg)
1683 {
1684   if ((arg > TMath::Pi()) || (arg < 0.0))
1685   {
1686     AliError(Form("ThetaToEta got wrong input! (%f)", arg));
1687     return 0.0;
1688   }
1689   return -log(tan(arg/2.));
1690 }
1691 //________________________________________________________________________
1692 inline Double_t AliAnalysisTaskChargedJetsPA::GetDeltaPhi(Double_t phi1, Double_t phi2)
1693   {return min(TMath::Abs(phi1-phi2),TMath::TwoPi() - TMath::Abs(phi1-phi2));}
1694
1695 //________________________________________________________________________
1696 Double_t AliAnalysisTaskChargedJetsPA::MCGetOverlapCircleRectancle(Double_t cPosX, Double_t cPosY, Double_t cRadius, Double_t rPosXmin, Double_t rPosXmax, Double_t rPosYmin, Double_t rPosYmax)
1697 {
1698   const Int_t kTests = 1000;
1699   Int_t hits = 0;
1700   TRandom3 randomGen(0);
1701
1702   // Loop over kTests-many tests
1703   for (Int_t i=0; i<kTests; i++)
1704   {
1705     //Choose random position in rectangle for the tester
1706     Double_t tmpTestX = randomGen.Uniform(rPosXmin, rPosXmax);
1707     Double_t tmpTestY = randomGen.Uniform(rPosYmin, rPosYmax);
1708
1709     //Check, if tester is in circle. If yes, increment circle counter.
1710     Double_t tmpDistance = TMath::Sqrt( (tmpTestX - cPosX)*(tmpTestX - cPosX) + (tmpTestY - cPosY)*(tmpTestY - cPosY) );
1711     if(tmpDistance < cRadius)
1712       hits++;
1713   }
1714
1715   // return ratio
1716   return (static_cast<Double_t>(hits)/static_cast<Double_t>(kTests));
1717 }
1718
1719 //________________________________________________________________________
1720 Double_t AliAnalysisTaskChargedJetsPA::MCGetOverlapMultipleCirclesRectancle(Int_t numCircles, std::vector<Double_t> cPosX, std::vector<Double_t> cPosY, Double_t cRadius, Double_t rPosXmin, Double_t rPosXmax, Double_t rPosYmin, Double_t rPosYmax)
1721 {
1722
1723   const Int_t kTests = 1000;
1724   Int_t hits = 0;
1725   TRandom3 randomGen(0);
1726
1727   // Loop over kTests-many tests
1728   for (Int_t i=0; i<kTests; i++)
1729   {
1730     //Choose random position in rectangle for the tester
1731     Double_t tmpTestX = randomGen.Uniform(rPosXmin, rPosXmax);
1732     Double_t tmpTestY = randomGen.Uniform(rPosYmin, rPosYmax);
1733
1734     //Check, if tester is in one of the circles. If yes, increment circle counter.
1735     for(Int_t j=0; j<numCircles; j++)
1736     {
1737       Double_t tmpDistance = TMath::Sqrt( (tmpTestX - cPosX[j])*(tmpTestX - cPosX[j]) + (tmpTestY - cPosY[j])*(tmpTestY - cPosY[j]) );
1738       if(tmpDistance < cRadius)
1739       {
1740         hits++;
1741         break;
1742       }
1743     }
1744   }
1745
1746   // return ratio
1747   return (static_cast<Double_t>(hits)/static_cast<Double_t>(kTests));
1748
1749 }
1750
1751 //________________________________________________________________________
1752 inline void AliAnalysisTaskChargedJetsPA::FillHistogram(const char * key, Double_t x)
1753 {
1754   TH1* tmpHist = static_cast<TH1*>(fOutputList->FindObject(GetHistoName(key)));
1755   if(!tmpHist)
1756   {
1757     AliError(Form("Cannot find histogram <%s> ",key)) ;
1758     return;
1759   }
1760
1761   tmpHist->Fill(x);
1762 }
1763
1764 //________________________________________________________________________
1765 inline void AliAnalysisTaskChargedJetsPA::FillHistogram(const char * key, Double_t x, Double_t y)
1766 {
1767   TH1* tmpHist = static_cast<TH1*>(fOutputList->FindObject(GetHistoName(key)));
1768   if(!tmpHist)
1769   {
1770     AliError(Form("Cannot find histogram <%s> ",key));
1771     return;
1772   }
1773
1774   if (tmpHist->IsA()->GetBaseClass("TH1"))
1775     static_cast<TH1*>(tmpHist)->Fill(x,y); // Fill x with y
1776   else if (tmpHist->IsA()->GetBaseClass("TH2"))
1777     static_cast<TH2*>(tmpHist)->Fill(x,y); // Fill x,y with 1
1778 }
1779
1780 //________________________________________________________________________
1781 inline void AliAnalysisTaskChargedJetsPA::FillHistogram(const char * key, Double_t x, Double_t y, Double_t add)
1782 {
1783   TH2* tmpHist = static_cast<TH2*>(fOutputList->FindObject(GetHistoName(key)));
1784   if(!tmpHist)
1785   {
1786     AliError(Form("Cannot find histogram <%s> ",key));
1787     return;
1788   }
1789
1790   tmpHist->Fill(x,y,add);
1791 }
1792 //________________________________________________________________________
1793 template <class T> T* AliAnalysisTaskChargedJetsPA::AddHistogram1D(const char* name, const char* title, const char* options, Int_t xBins, Double_t xMin, Double_t xMax, const char* xTitle, const char* yTitle)
1794 {
1795   T* tmpHist = new T(GetHistoName(name), GetHistoName(title), xBins, xMin, xMax);
1796
1797   tmpHist->GetXaxis()->SetTitle(xTitle);
1798   tmpHist->GetYaxis()->SetTitle(yTitle);
1799   tmpHist->SetOption(options);
1800   tmpHist->SetMarkerStyle(kFullCircle);
1801   tmpHist->Sumw2();
1802
1803   fHistList->Add(tmpHist);
1804   fHistCount++;
1805
1806   return tmpHist;
1807 }
1808
1809 //________________________________________________________________________
1810 template <class T> T* AliAnalysisTaskChargedJetsPA::AddHistogram2D(const char* name, const char* title, const char* options, Int_t xBins, Double_t xMin, Double_t xMax, Int_t yBins, Double_t yMin, Double_t yMax, const char* xTitle, const char* yTitle, const char* zTitle)
1811 {
1812   T* tmpHist = new T(GetHistoName(name), GetHistoName(title), xBins, xMin, xMax, yBins, yMin, yMax);
1813   tmpHist->GetXaxis()->SetTitle(xTitle);
1814   tmpHist->GetYaxis()->SetTitle(yTitle);
1815   tmpHist->GetZaxis()->SetTitle(zTitle);
1816   tmpHist->SetOption(options);
1817   tmpHist->SetMarkerStyle(kFullCircle);
1818   tmpHist->Sumw2();
1819
1820   fHistList->Add(tmpHist);
1821   fHistCount++;
1822
1823   return tmpHist;
1824 }
1825
1826 //________________________________________________________________________
1827 void AliAnalysisTaskChargedJetsPA::Terminate(Option_t *)
1828 {
1829   PostData(1, fOutputList);
1830
1831   // Mandatory
1832   fOutputList = dynamic_cast<TList*> (GetOutputData(1)); // '1' refers to the output slot
1833   if (!fOutputList) {
1834     printf("ERROR: Output list not available\n");
1835     return;
1836   }
1837 }
1838
1839 //________________________________________________________________________
1840 AliAnalysisTaskChargedJetsPA::~AliAnalysisTaskChargedJetsPA()
1841 {
1842   // Destructor. Clean-up the output list, but not the histograms that are put inside
1843   // (the list is owner and will clean-up these histograms). Protect in PROOF case.
1844   if (fOutputList && !AliAnalysisManager::GetAnalysisManager()->IsProofMode()) {
1845     delete fOutputList;
1846   }
1847 }
1848
1849 //________________________________________________________________________
1850 void AliAnalysisTaskChargedJetsPA::UserCreateOutputObjects()
1851 {
1852   // called once to create user defined output objects like histograms, plots etc.
1853   // and to put it on the output list.
1854   // Note: Saving to file with e.g. OpenFile(0) is must be before creating other objects.
1855
1856   fRandom = new TRandom3(0);
1857
1858
1859   fOutputList = new TList();
1860   fOutputList->SetOwner(); // otherwise it produces leaks in merging
1861
1862   // NOTE: Pythia histograms
1863   AddHistogram1D<TProfile>("hPythiaXSection", "Pythia cross section distribution", "", fNumPtHardBins+1, 0, fNumPtHardBins+1, "p_{T} hard bin","dN^{Events}/dp_{T,hard}");
1864   AddHistogram1D<TH1D>("hPythiaNTrials", "Pythia trials (no correction for manual cuts)", "", fNumPtHardBins+1, 0, fNumPtHardBins+1, "p_{T} hard bin", "Trials");
1865
1866
1867   PostData(1, fOutputList);
1868 }
1869
1870 //________________________________________________________________________
1871 void AliAnalysisTaskChargedJetsPA::UserExec(Option_t *)
1872 {
1873   #ifdef DEBUGMODE
1874     AliInfo("UserExec() started.");
1875   #endif
1876
1877   if (!InputEvent())
1878   {
1879     AliError("??? Event pointer == 0 ???");
1880     return;
1881   }
1882
1883   if (!fInitialized)
1884     ExecOnce(); // Get tracks, jets, background from arrays if not already given + Init Histos
1885
1886   Calculate(InputEvent());
1887
1888   PostData(1, fOutputList);
1889 }