PWGJE/EMCALJetTasks/UserTasks/AliAnalysisTaskEmcalDiJetAna.cxx

   1 //
   2 // Dijet analysis task.
   3 //
   4 // Author: M.Verweij
   5
   6 #include <TClonesArray.h>
   7 #include <TH1F.h>
   8 #include <TH2F.h>
   9 #include <TH3F.h>
  10 #include <THnSparse.h>
  11 #include <TList.h>
  12 #include <TLorentzVector.h>
  13 #include <TProfile.h>
  14 #include <TChain.h>
  15 #include <TSystem.h>
  16 #include <TFile.h>
  17 #include <TKey.h>
  18
  19 #include "AliVCluster.h"
  20 #include "AliVTrack.h"
  21 #include "AliEmcalJet.h"
  22 #include "AliRhoParameter.h"
  23 #include "AliLog.h"
  24 #include "AliEmcalParticle.h"
  25 #include "AliMCEvent.h"
  26 #include "AliGenPythiaEventHeader.h"
  27 #include "AliAODMCHeader.h"
  28 #include "AliMCEvent.h"
  29 #include "AliAnalysisManager.h"
  30 #include "AliJetContainer.h"
  31 #include "AliCentrality.h"
  32
  33 #include "AliAnalysisTaskEmcalDiJetAna.h"
  34
  35 ClassImp(AliAnalysisTaskEmcalDiJetAna)
  36
  37 //________________________________________________________________________
  38 AliAnalysisTaskEmcalDiJetAna::AliAnalysisTaskEmcalDiJetAna() :
  39   AliAnalysisTaskEmcalDiJetBase("AliAnalysisTaskEmcalDiJetAna"),
  40   fDoMatchFullCharged(kTRUE),
  41   fNDiJetEtaBins(1),
  42   fNAjBins(1),
  43   fh2CentRhoCh(0),
  44   fh2CentRhoScaled(0),
  45   fh3PtEtaPhiJetFull(0),
  46   fh3PtEtaPhiJetCharged(0),
  47   fhnDiJetVarsFull(0),
  48   fhnDiJetVarsCh(0),
  49   fhnDiJetVarsFullCharged(0),
  50   fhnMatchingFullCharged(0),
  51   fh3PtTrigKt1Kt2Ch(0),
  52   fh3PtTrigKt1Kt2FuCh(0),
  53   fh3PtTrigDPhi1DPhi2Ch(0),
  54   fh3PtTrigDPhi1DPhi2FuCh(0)
  55 {
  56   // Default constructor.
  57
  58   for(Int_t i=0; i<4; i++) {
  59     fh3DiJetKtNEFPtAssoc[i]          = 0;
  60     fCentCorrPtAssocCh[i]            = 0;
  61     fCentCorrPtAssocFuCh[i]          = 0;
  62     fAjPtAssocCentCh[i]              = 0;
  63     fAjPtAssocCentFuCh[i]            = 0;
  64     fh3PtAssoc1PtAssoc2DPhi23Ch[i]   = 0;
  65     fh3PtAssoc1PtAssoc2DPhi23FuCh[i] = 0;
  66   }
  67
  68   SetMakeGeneralHistograms(kTRUE);
  69 }
  70
  71 //________________________________________________________________________
  72 AliAnalysisTaskEmcalDiJetAna::AliAnalysisTaskEmcalDiJetAna(const char *name) :
  73   AliAnalysisTaskEmcalDiJetBase(name),
  74   fDoMatchFullCharged(kTRUE),
  75   fNDiJetEtaBins(1),
  76   fNAjBins(1),
  77   fh2CentRhoCh(0),
  78   fh2CentRhoScaled(0),
  79   fh3PtEtaPhiJetFull(0),
  80   fh3PtEtaPhiJetCharged(0),
  81   fhnDiJetVarsFull(0),
  82   fhnDiJetVarsCh(0),
  83   fhnDiJetVarsFullCharged(0),
  84   fhnMatchingFullCharged(0),
  85   fh3PtTrigKt1Kt2Ch(0),
  86   fh3PtTrigKt1Kt2FuCh(0),
  87   fh3PtTrigDPhi1DPhi2Ch(0),
  88   fh3PtTrigDPhi1DPhi2FuCh(0)
  89 {
  90   // Standard constructor.
  91
  92   for(Int_t i=0; i<4; i++) {
  93     fh3DiJetKtNEFPtAssoc[i]      = 0;
  94     fCentCorrPtAssocCh[i]        = 0;
  95     fCentCorrPtAssocFuCh[i]      = 0;
  96     fAjPtAssocCentCh[i]          = 0;
  97     fAjPtAssocCentFuCh[i]        = 0;
  98     fh3PtAssoc1PtAssoc2DPhi23Ch[i]   = 0;
  99     fh3PtAssoc1PtAssoc2DPhi23FuCh[i] = 0;
 100   }
 101
 102   SetMakeGeneralHistograms(kTRUE);
 103 }
 104
 105 //________________________________________________________________________
 106 AliAnalysisTaskEmcalDiJetAna::~AliAnalysisTaskEmcalDiJetAna()
 107 {
 108   // Destructor.
 109 }
 110
 111 //________________________________________________________________________
 112 Bool_t AliAnalysisTaskEmcalDiJetAna::RetrieveEventObjects() {
 113   //
 114   // retrieve event objects
 115   //
 116
 117   if (!AliAnalysisTaskEmcalDiJetBase::RetrieveEventObjects())
 118     return kFALSE;
 119
 120   return kTRUE;
 121 }
 122
 123 //________________________________________________________________________
 124 void AliAnalysisTaskEmcalDiJetAna::UserCreateOutputObjects()
 125 {
 126   // Create user output.
 127
 128   AliAnalysisTaskEmcalDiJetBase::UserCreateOutputObjects();
 129
 130   Bool_t oldStatus = TH1::AddDirectoryStatus();
 131   TH1::AddDirectory(kFALSE);
 132
 133   const Int_t nBinsCent = 100;
 134   Double_t minCent = 0.;
 135   Double_t maxCent = 100.;
 136
 137   const Int_t nBinsRho = 200;
 138   Double_t minRho = 0.;
 139   Double_t maxRho = 20.;
 140   fh2CentRhoCh = new TH2F("fh2CentRhoCh","fh2CentRhoCh;centrality;#rho_{ch}",nBinsCent,minCent,maxCent,nBinsRho,minRho,maxRho);
 141   fOutput->Add(fh2CentRhoCh);
 142   fh2CentRhoScaled = new TH2F("fh2CentRhoScaled","fh2CentRhoScaled;centrality;s_{EMC}#rho_{ch}",nBinsCent,minCent,maxCent,nBinsRho,minRho,maxRho);
 143   fOutput->Add(fh2CentRhoScaled);
 144
 145   const Int_t nBinsPt = 150;
 146   Double_t minPt = -20.;
 147   Double_t maxPt = 130.;
 148   const Int_t nBinsEta = 40;
 149   Double_t minEta = -1.;
 150   Double_t maxEta = 1.;
 151   const Int_t nBinsPhi = 18*6;
 152   Double_t minPhi = 0.;
 153   Double_t maxPhi = TMath::TwoPi();
 154
 155   fh3PtEtaPhiJetFull = new TH3F("fh3PtEtaPhiJetFull","fh3PtEtaPhiJetFull;#it{p}_{T}^{jet};#eta;#varphi",nBinsPt,minPt,maxPt,nBinsEta,minEta,maxEta,nBinsPhi,minPhi,maxPhi);
 156   fOutput->Add(fh3PtEtaPhiJetFull);
 157
 158   fh3PtEtaPhiJetCharged = new TH3F("fh3PtEtaPhiJetCharged","fh3PtEtaPhiJetCharged;#it{p}_{T}^{jet};#eta;#varphi",nBinsPt,minPt,maxPt,nBinsEta,minEta,maxEta,nBinsPhi,minPhi,maxPhi);
 159   fOutput->Add(fh3PtEtaPhiJetCharged);
 160
 161   const Int_t nBinsSparse0 = 7;
 162   const Int_t nBinsPtW      = 30;
 163   const Int_t nBinsDPhi     = 72;
 164   const Int_t nBinsKt       = 30;
 165   const Int_t nBinsDiJetEta = fNDiJetEtaBins;//40;
 166   const Int_t nBinsCentr    = fNcentBins;
 167   const Int_t nBinsAj       = fNAjBins;//20
 168   const Int_t nBins0[nBinsSparse0] = {nBinsPtW,nBinsPtW,nBinsDPhi,nBinsKt,nBinsDiJetEta,nBinsCentr,nBinsAj};
 169   //pT1, pT2, deltaPhi, kT
 170   const Double_t xmin0[nBinsSparse0]  = {  minPt, minPt, -0.5*TMath::Pi(),   0.,-1.,0.  , 0.};
 171   const Double_t xmax0[nBinsSparse0]  = {  maxPt, maxPt,  1.5*TMath::Pi(), 120., 1.,100., 1.};
 172   const Double_t centArrayBins[8] = {0.,2.,5.,10.,20.,40.,60.,100.};
 173
 174   if(fDoChargedCharged) {
 175     fhnDiJetVarsCh = new THnSparseF("fhnDiJetVarsCh",
 176                                     "fhnDiJetVarsCh;#it{p}_{T,1} (GeV/#it{c});#it{p}_{T,2} (GeV/#it{c});#Delta#varphi;#it{k}_{T} = #it{p}_{T,1}sin(#Delta#varphi) (GeV/#it{c});(#eta_{1}+#eta_{2})/2);centrality;#it{A}_{j}",
 177                                     nBinsSparse0,nBins0,xmin0,xmax0);
 178     if(fNcentBins==7) fhnDiJetVarsCh->SetBinEdges(5,centArrayBins);
 179     fOutput->Add(fhnDiJetVarsCh);
 180   }
 181
 182   if(fDoFullCharged) {
 183     fhnDiJetVarsFullCharged = new THnSparseF("fhnDiJetVarsFullCharged",
 184                                 "fhnDiJetVarsFullCharged;#it{p}_{T,1} (GeV/#it{c});#it{p}_{T,2} (GeV/#it{c});#Delta#varphi;#it{k}_{T} = #it{p}_{T,1}sin(#Delta#varphi) (GeV/#it{c});(#eta_{1}+#eta_{2})/2);centrality;#it{A}_{j}",
 185                                 nBinsSparse0,nBins0,xmin0,xmax0);
 186     if(fNcentBins==7) fhnDiJetVarsFullCharged->SetBinEdges(5,centArrayBins);
 187     fOutput->Add(fhnDiJetVarsFullCharged);
 188   }
 189
 190   if(fDoFullFull) {
 191     fhnDiJetVarsFull = new THnSparseF("fhnDiJetVarsFull",
 192                                     "fhnDiJetVarsFull;#it{p}_{T,1} (GeV/#it{c});#it{p}_{T,2} (GeV/#it{c});#Delta#varphi;#it{k}_{T} = #it{p}_{T,1}sin(#Delta#varphi) (GeV/#it{c});(#eta_{1}+#eta_{2})/2);centrality;#it{A}_{j}",
 193                                     nBinsSparse0,nBins0,xmin0,xmax0);
 194     fOutput->Add(fhnDiJetVarsFull);
 195   }
 196
 197   fh3PtTrigKt1Kt2Ch = new TH3F("fh3PtTrigKt1Kt2Ch","fh3PtTrigKt1Kt2Ch;#it{p}_{T,1} (GeV/#it{c});#it{k}_{T,1};#it{k}_{T,2}",nBinsPt,minPt,maxPt,nBinsKt,0.,120.,nBinsKt,0.,120.);
 198   fOutput->Add(fh3PtTrigKt1Kt2Ch);
 199
 200   fh3PtTrigKt1Kt2FuCh = new TH3F("fh3PtTrigKt1Kt2FuCh","fh3PtTrigKt1Kt2FuCh;#it{p}_{T,1} (GeV/#it{c});#it{k}_{T,1};#it{k}_{T,2}",nBinsPt,minPt,maxPt,nBinsKt,0.,120.,nBinsKt,0.,120.);
 201   fOutput->Add(fh3PtTrigKt1Kt2FuCh);
 202
 203   fh3PtTrigDPhi1DPhi2Ch = new TH3F("fh3PtTrigDPhi1DPhi2Ch","fh3PtTrigDPhi1DPhi2Ch;#it{p}_{T,1} (GeV/#it{c});#it{k}_{T,1};#it{k}_{T,2}",nBinsPt,minPt,maxPt,36,-0.5*TMath::Pi(),1.5*TMath::Pi(),36,-0.5*TMath::Pi(),1.5*TMath::Pi());
 204   fOutput->Add(fh3PtTrigDPhi1DPhi2Ch);
 205
 206   fh3PtTrigDPhi1DPhi2FuCh = new TH3F("fh3PtTrigDPhi1DPhi2FuCh","fh3PtTrigDPhi1DPhi2FuCh;#it{p}_{T,1} (GeV/#it{c});#it{k}_{T,1};#it{k}_{T,2}",nBinsPt,minPt,maxPt,36,-0.5*TMath::Pi(),1.5*TMath::Pi(),36,-0.5*TMath::Pi(),1.5*TMath::Pi());
 207   fOutput->Add(fh3PtTrigDPhi1DPhi2FuCh);
 208
 209
 210   for(Int_t i=0; i<4; i++) {
 211     TString histoName = Form("fh3DiJetKtNEFPtAssoc_TrigBin%d",i);
 212     fh3DiJetKtNEFPtAssoc[i] = new TH3F(histoName.Data(),histoName.Data(),nBinsKt,0.,120.,50,0.,1.,nBinsPt,minPt,maxPt);
 213     fOutput->Add(fh3DiJetKtNEFPtAssoc[i]);
 214
 215     histoName = Form("fCentCorrPtAssocCh_TrigBin%d",i);
 216     fCentCorrPtAssocCh[i]  = new TH3F(histoName.Data(),histoName.Data(),10,0.,100.,10,0.,100.,nBinsPt,minPt,maxPt);
 217     fOutput->Add(fCentCorrPtAssocCh[i]);
 218
 219     histoName = Form("fCentCorrPtAssocFuCh_TrigBin%d",i);
 220     fCentCorrPtAssocFuCh[i]  = new TH3F(histoName.Data(),histoName.Data(),10,0.,100.,10,0.,100.,nBinsPt,minPt,maxPt);
 221     fOutput->Add(fCentCorrPtAssocFuCh[i]);
 222
 223     histoName = Form("fAjPtAssocCentCh_TrigBin%d",i);
 224     fAjPtAssocCentCh[i]  = new TH3F(histoName.Data(),histoName.Data(),50,0.,1.,nBinsPt,minPt,maxPt,20,0.,100.);
 225     fOutput->Add(fAjPtAssocCentCh[i]);
 226
 227     histoName = Form("fAjPtAssocCentFuCh_TrigBin%d",i);
 228     fAjPtAssocCentFuCh[i]  = new TH3F(histoName.Data(),histoName.Data(),50,0.,1.,nBinsPt,minPt,maxPt,20,0.,100.);
 229     fOutput->Add(fAjPtAssocCentFuCh[i]);
 230
 231     histoName = Form("fh3PtAssoc1PtAssoc2DPhi23Ch_TrigBin%d",i);
 232     fh3PtAssoc1PtAssoc2DPhi23Ch[i] = new TH3F(histoName.Data(),histoName.Data(),nBinsPt,minPt,maxPt,nBinsPt,minPt,maxPt,nBinsDPhi,-0.5*TMath::Pi(),1.5*TMath::Pi());
 233     fOutput->Add(fh3PtAssoc1PtAssoc2DPhi23Ch[i]);
 234
 235     histoName = Form("fh3PtAssoc1PtAssoc2DPhi23FuCh_TrigBin%d",i);
 236     fh3PtAssoc1PtAssoc2DPhi23FuCh[i] = new TH3F(histoName.Data(),histoName.Data(),nBinsPt,minPt,maxPt,nBinsPt,minPt,maxPt,nBinsDPhi,-0.5*TMath::Pi(),1.5*TMath::Pi());
 237     fOutput->Add(fh3PtAssoc1PtAssoc2DPhi23FuCh[i]);
 238   }
 239
 240   const Int_t nBinsSparseMatch = 7;
 241   const Int_t nBinsDPhiMatch = 80;
 242   const Int_t nBinsDEtaMatch = 80;
 243   const Int_t nBinsDR = 20;
 244   const Int_t nBinsFraction = 21;
 245   const Int_t nBinsType = 3;
 246   const Int_t nBinsMatch[nBinsSparseMatch] = {nBinsPt,nBinsPt,nBinsDPhiMatch,nBinsDEtaMatch,nBinsDR,nBinsFraction,nBinsType};
 247   //pTfull, pTch, deltaPhi, deltaEta, deltaR, fraction, jet type (leading,subleading,other)
 248   const Double_t xminMatch[nBinsSparseMatch]  = { minPt, minPt, -0.5,-0.5, 0. ,0.  ,0};
 249   const Double_t xmaxMatch[nBinsSparseMatch]  = { maxPt, maxPt,  0.5, 0.5, 0.5,1.05,3};
 250   if(fDoMatchFullCharged) {
 251     fhnMatchingFullCharged = new THnSparseF("fhnMatchingFullCharged","fhnMatchingFullCharged;#it{p}_{T,full} (GeV/#it{c});#it{p}_{T,ch} (GeV/#it{c});#Delta#varphi;#Delta#eta;#Delta R;f_{ch};type",
 252                                           nBinsSparseMatch,nBinsMatch,xminMatch,xmaxMatch);
 253     fOutput->Add(fhnMatchingFullCharged);
 254   }
 255
 256   // =========== Switch on Sumw2 for all histos ===========
 257   for (Int_t i=0; i<fOutput->GetEntries(); ++i) {
 258     TH1 *h1 = dynamic_cast<TH1*>(fOutput->At(i));
 259     if (h1){
 260       h1->Sumw2();
 261       continue;
 262     }
 263     THnSparse *hn = dynamic_cast<THnSparse*>(fOutput->At(i));
 264     if(hn) {
 265       hn->Sumw2();
 266       continue;
 267     }
 268   }
 269
 270   TH1::AddDirectory(oldStatus);
 271
 272   PostData(1, fOutput); // Post data for ALL output slots > 0 here.
 273 }
 274
 275 //________________________________________________________________________
 276 Bool_t AliAnalysisTaskEmcalDiJetAna::FillHistograms()
 277 {
 278   // Fill histograms.
 279
 280   fh2CentRhoCh->Fill(fCent,fRhoChVal);
 281   fh2CentRhoScaled->Fill(fCent,fRhoFullVal);
 282
 283   Int_t nJetsFull = GetNJets(fContainerFull);
 284   for(Int_t ij=0; ij<nJetsFull; ij++) {
 285     AliEmcalJet *jet = static_cast<AliEmcalJet*>(GetAcceptJetFromArray(ij, fContainerFull));
 286     if(!jet) continue; //jet not selected
 287
 288     Double_t jetPt = GetJetPt(jet,0);
 289     fh3PtEtaPhiJetFull->Fill(jetPt,jet->Eta(),jet->Phi());
 290   }
 291
 292   Int_t nJetsCh = GetNJets(fContainerCharged);
 293   for(Int_t ij=0; ij<nJetsCh; ij++) {
 294     AliEmcalJet *jet = static_cast<AliEmcalJet*>(GetAcceptJetFromArray(ij, fContainerCharged));
 295     if(!jet) continue; //jet not selected
 296
 297       Double_t jetPt = GetJetPt(jet,1);
 298       fh3PtEtaPhiJetCharged->Fill(jetPt,jet->Eta(),jet->Phi());
 299   }
 300
 301   return kTRUE;
 302 }
 303
 304 //________________________________________________________________________
 305 Bool_t AliAnalysisTaskEmcalDiJetAna::Run()
 306 {
 307   // Run analysis code here, if needed. It will be executed before FillHistograms().
 308
 309   //Check if event is selected (vertex & pile-up)
 310   if(!SelectEvent())
 311     return kFALSE;
 312
 313   if(fRhoType==0) {
 314     fRhoFullVal = 0.;
 315     fRhoChVal = 0.;
 316   }
 317   if(fRhoType==1) {
 318     fRhoFullVal = GetRhoVal(fContainerFull);
 319     fRhoChVal = GetRhoVal(fContainerCharged);
 320   }
 321
 322   if(fDoFullFull)
 323     CorrelateJets(0);
 324
 325   // MatchFullAndChargedJets();
 326   if(fDoChargedCharged)   CorrelateJets(1);
 327
 328   if(fDoMatchFullCharged) FillMatchFullChargedHistos(fContainerFull,fContainerCharged);
 329
 330   if(fDoFullCharged)      {
 331     SetChargedFractionIndex();
 332     CorrelateJets(2);
 333   }
 334
 335   return kTRUE;  // If return kFALSE FillHistogram() will NOT be executed.
 336 }
 337
 338 //________________________________________________________________________
 339 void AliAnalysisTaskEmcalDiJetAna::CorrelateJets(const Int_t type) {
 340   //
 341   // Correlate jets and fill histos
 342   //
 343
 344   if( fJetCorrelationType==kCorrelateAll )
 345     CorrelateAllJets(type);
 346   else if( fJetCorrelationType==kCorrelateTwo )
 347     CorrelateTwoJets(type);
 348   else if( fJetCorrelationType==kCorrelateLS )
 349     CorrelateLeadingSubleadingJets(type);
 350
 351   return;
 352
 353 }
 354
 355 //________________________________________________________________________
 356 void AliAnalysisTaskEmcalDiJetAna::CorrelateTwoJets(const Int_t type) {
 357   //
 358   // Correlate jets and fill histos
 359   //
 360
 361   Int_t typet = 0;
 362   Int_t typea = 0;
 363   if(type==0) { //full-full
 364     typet = fContainerFull;
 365     typea = fContainerFull;
 366   }
 367   else if(type==1) { //charged-charged
 368     typet = fContainerCharged;
 369     typea = fContainerCharged;
 370   }
 371   else if(type==2) { //full-charged
 372     typet = fContainerFull;
 373     typea = fContainerCharged;
 374   }
 375   else {
 376     AliWarning(Form("%s: type %d of dijet correlation not defined!",GetName(),type));
 377     return;
 378   }
 379
 380   Int_t nJetsTrig  = GetNJets(typet);
 381   for(Int_t ijt=0; ijt<nJetsTrig; ijt++) {
 382
 383     AliEmcalJet *jetTrig = NULL;
 384     if(type==0) {
 385       jetTrig = static_cast<AliEmcalJet*>(GetJetFromArray(ijt, typet));
 386       if(TMath::Abs(jetTrig->Eta())>0.5)
 387         jetTrig = NULL;
 388     }
 389     else
 390       jetTrig = static_cast<AliEmcalJet*>(GetAcceptJetFromArray(ijt, typet));
 391
 392     if(!jetTrig)
 393       continue; //jet not selected
 394
 395     Double_t jetTrigPt = GetJetPt(jetTrig,typet);
 396
 397     if(jetTrigPt<fPtMinTriggerJet)
 398       continue;
 399
 400     AliEmcalJet *jetAssoc = GetLeadingAssociatedJet(typea,jetTrig);
 401     if(!jetAssoc)
 402       continue;
 403
 404     if(type==0 || type==1) {
 405       if(GetJetPt(jetAssoc,typea)>jetTrigPt)
 406         continue;
 407     }
 408
 409     FillDiJetHistos(jetTrig,jetAssoc, type);
 410
 411     //Look for second jet on away side - 3-jet events
 412     AliEmcalJet *jetAssoc2 = GetSecondLeadingAssociatedJet(typea,jetTrig);
 413     if(jetAssoc2)
 414       FillThreeJetHistos(jetTrig,jetAssoc,jetAssoc2,type);
 415
 416   }
 417 }
 418
 419 //________________________________________________________________________
 420 AliEmcalJet* AliAnalysisTaskEmcalDiJetAna::GetLeadingJet(const Int_t type) {
 421
 422   //Get associated jet which is the leading jet in the opposite hemisphere
 423
 424   Int_t cont = 0;
 425   if(type==0)  //full-full
 426     cont = fContainerFull;
 427   else if(type==1)  //charged-charged
 428     cont = fContainerCharged;
 429   else if(type==2)  //full-charged
 430     cont = fContainerFull;
 431
 432   Int_t nJets = GetNJets(cont);
 433   Double_t ptLead = -999;
 434   Int_t    iJetLead = -1;
 435   for(Int_t ij=0; ij<nJets; ij++) {
 436     AliEmcalJet *jet = NULL;
 437     if(type==0) {
 438       jet = static_cast<AliEmcalJet*>(GetJetFromArray(ij, cont));
 439       if(TMath::Abs(jet->Eta())>0.5)
 440         jet = NULL;
 441     }
 442     else
 443       jet = static_cast<AliEmcalJet*>(GetAcceptJetFromArray(ij, cont));
 444
 445     if(!jet)
 446       continue;
 447
 448     Double_t jetPt = GetJetPt(jet,cont);
 449
 450     if(jetPt>ptLead) {
 451       ptLead = jetPt;
 452       iJetLead = ij;
 453     }
 454   }
 455
 456   AliEmcalJet *jetLead = static_cast<AliEmcalJet*>(GetJetFromArray(iJetLead, cont));
 457
 458   return jetLead;
 459 }
 460
 461 //________________________________________________________________________
 462 AliEmcalJet* AliAnalysisTaskEmcalDiJetAna::GetLeadingAssociatedJet(const Int_t type, AliEmcalJet *jetTrig) {
 463
 464   //Get associated jet which is the leading jet in the opposite hemisphere
 465
 466   Int_t typea = 0;
 467   if(type==0)  //full-full
 468     typea = fContainerFull;
 469   else if(type==1)  //charged-charged
 470     typea = fContainerCharged;
 471   else if(type==2)  //full-charged
 472     typea = fContainerCharged;
 473
 474   AliEmcalJet *jetAssocLead = GetLeadingJetOppositeHemisphere(type, typea, jetTrig);
 475
 476   return jetAssocLead;
 477 }
 478
 479 //________________________________________________________________________
 480 AliEmcalJet* AliAnalysisTaskEmcalDiJetAna::GetSecondLeadingAssociatedJet(const Int_t type, AliEmcalJet *jetTrig) {
 481
 482   //Get associated jet which is the leading jet in the opposite hemisphere
 483
 484   Int_t typea = 0;
 485   if(type==0)  //full-full
 486     typea = fContainerFull;
 487   else if(type==1)  //charged-charged
 488     typea = fContainerCharged;
 489   else if(type==2)  //full-charged
 490     typea = fContainerCharged;
 491
 492   AliEmcalJet *jetAssocLead2 = GetSecondLeadingJetOppositeHemisphere(type, typea, jetTrig);
 493
 494   return jetAssocLead2;
 495 }
 496
 497 //________________________________________________________________________
 498 void AliAnalysisTaskEmcalDiJetAna::CorrelateAllJets(const Int_t type) {
 499   //
 500   // Correlate jets and fill histos
 501   //
 502
 503   Int_t typet = 0;
 504   Int_t typea = 0;
 505   if(type==0) { //full-full
 506     typet = fContainerFull;
 507     typea = fContainerFull;
 508   }
 509   else if(type==1) { //charged-charged
 510     typet = fContainerCharged;
 511     typea = fContainerCharged;
 512   }
 513   else if(type==2) { //full-charged
 514     typet = fContainerFull;
 515     typea = fContainerCharged;
 516   }
 517   else {
 518     AliWarning(Form("%s: type %d of dijet correlation not defined!",GetName(),type));
 519     return;
 520   }
 521
 522   Int_t nJetsTrig  = GetNJets(typet);
 523   Int_t nJetsAssoc = GetNJets(typea);
 524
 525   for(Int_t ijt=0; ijt<nJetsTrig; ijt++) {
 526     AliEmcalJet *jetTrig = NULL;
 527     if(type==0) {
 528       jetTrig = static_cast<AliEmcalJet*>(GetJetFromArray(ijt, typet));
 529       if(TMath::Abs(jetTrig->Eta())>0.5)
 530         jetTrig = NULL;
 531     }
 532     else
 533       jetTrig = static_cast<AliEmcalJet*>(GetAcceptJetFromArray(ijt, typet));
 534
 535     if(!jetTrig)
 536       continue; //jet not selected
 537
 538     Double_t jetTrigPt = GetJetPt(jetTrig,typet);
 539
 540     if(jetTrigPt<fPtMinTriggerJet)
 541       continue;
 542
 543     for(Int_t ija=0; ija<nJetsAssoc; ija++) {
 544       if(IsSameJet(ijt,ija,type)) continue;
 545
 546       AliEmcalJet *jetAssoc = NULL;
 547       if(type==0) {
 548         jetAssoc = static_cast<AliEmcalJet*>(GetJetFromArray(ija, typea));
 549         if(TMath::Abs(jetAssoc->Eta())>0.5)
 550           jetAssoc = NULL;
 551       }
 552       else
 553         jetAssoc = static_cast<AliEmcalJet*>(GetAcceptJetFromArray(ija, typea));
 554
 555       if(!jetAssoc)
 556         continue;
 557
 558       Double_t jetAssocPt = GetJetPt(jetAssoc,typea);
 559
 560       if(jetTrigPt>jetAssocPt)
 561         FillDiJetHistos(jetTrig,jetAssoc, type);
 562
 563     } // associate jet loop
 564   }//trigger jet loop
 565
 566 }
 567
 568 //________________________________________________________________________
 569 void AliAnalysisTaskEmcalDiJetAna::CorrelateLeadingSubleadingJets(const Int_t type) {
 570   //
 571   // Correlate leading jet in event with leading jet in opposite hemisphere
 572   //
 573
 574   Int_t typet = 0;
 575   Int_t typea = 0;
 576   if(type==0) { //full-full
 577     typet = fContainerFull;
 578     typea = fContainerFull;
 579   }
 580   else if(type==1) { //charged-charged
 581     typet = fContainerCharged;
 582     typea = fContainerCharged;
 583   }
 584   else if(type==2) { //full-charged
 585     typet = fContainerFull;
 586     typea = fContainerCharged;
 587   }
 588   else {
 589     AliWarning(Form("%s: type %d of dijet correlation not defined!",GetName(),type));
 590     return;
 591   }
 592
 593   AliEmcalJet *jetTrig = GetLeadingJet(typet);
 594   if(!jetTrig)
 595     return;
 596
 597   Double_t jetTrigPt = GetJetPt(jetTrig,typet);
 598
 599   if(jetTrigPt<fPtMinTriggerJet)
 600     return;
 601
 602   AliEmcalJet *jetAssoc = GetLeadingAssociatedJet(typea,jetTrig);
 603   if(!jetAssoc)
 604     return;
 605
 606   FillDiJetHistos(jetTrig,jetAssoc, type);
 607 }
 608
 609 //________________________________________________________________________
 610 void AliAnalysisTaskEmcalDiJetAna::FillDiJetHistos(const AliEmcalJet *jet1, const AliEmcalJet *jet2, const Int_t mode) {
 611   //
 612   // Fill histos
 613   // mode: full vs full        = 0
 614   //       charged vs charged  = 1
 615   //       full vs charged     = 2
 616   //
 617
 618   Int_t typet = 0;
 619   Int_t typea = 0;
 620   if(mode==0) { //full-full
 621     typet = fContainerFull;
 622     typea = fContainerFull;
 623   }
 624   else if(mode==1) { //charged-charged
 625     typet = fContainerCharged;
 626     typea = fContainerCharged;
 627   }
 628   else if(mode==2) { //full-charged
 629     typet = fContainerFull;
 630     typea = fContainerCharged;
 631   }
 632   else {
 633     AliWarning(Form("%s: mode %d of dijet correlation not defined!",GetName(),mode));
 634     return;
 635   }
 636
 637   Double_t jetTrigPt = GetJetPt(jet1,typet);
 638   Double_t jetAssocPt = GetJetPt(jet2,typea);
 639
 640   Double_t deltaPhi = GetDeltaPhi(jet1->Phi(),jet2->Phi());
 641
 642   Double_t kT = TMath::Abs(jetTrigPt*TMath::Sin(deltaPhi));
 643
 644   Double_t dijetEta = (jet1->Eta()+jet2->Eta())/2.;
 645
 646   Double_t aj = 0.;
 647   if((jetTrigPt+jetAssocPt)>0.) aj = (jetTrigPt-jetAssocPt)/(jetTrigPt+jetAssocPt);
 648
 649   Double_t diJetVars[7] = {jetTrigPt,jetAssocPt,deltaPhi,kT,dijetEta,fCent,aj};
 650
 651   if(mode==0)
 652     fhnDiJetVarsFull->Fill(diJetVars);
 653   else if(mode==1)
 654     fhnDiJetVarsCh->Fill(diJetVars);
 655   else if(mode==2)
 656     fhnDiJetVarsFullCharged->Fill(diJetVars);
 657
 658   Double_t dPhiMin = TMath::Pi() - 1./3.*TMath::Pi();
 659   Double_t dPhiMax = TMath::Pi() + 1./3.*TMath::Pi();
 660   Int_t trigBin = GetPtTriggerBin(jetTrigPt);
 661   if(mode==2) {
 662     if(trigBin>-1 && trigBin<4) {
 663       if(deltaPhi>dPhiMin && deltaPhi<dPhiMax)
 664         fh3DiJetKtNEFPtAssoc[trigBin]->Fill(kT, jet1->NEF(), jetAssocPt);
 665     }
 666   }
 667
 668   //Fill centrality correlation histos in case a dijet is present in acceptance
 669   Double_t centZNA = -1.;
 670   AliCentrality *aliCent = InputEvent()->GetCentrality();
 671   if (aliCent) {
 672     centZNA = aliCent->GetCentralityPercentile("ZNA");
 673     if(trigBin>-1 && trigBin<4) {
 674       if(deltaPhi>dPhiMin && deltaPhi<dPhiMax) {
 675         if(mode==1) {
 676           fCentCorrPtAssocCh[trigBin]->Fill(fCent,centZNA,jetAssocPt);
 677           fAjPtAssocCentCh[trigBin]->Fill(aj,jetAssocPt,fCent);
 678         }
 679         else if(mode==2) {
 680           fCentCorrPtAssocFuCh[trigBin]->Fill(fCent,centZNA,jetAssocPt);
 681           fAjPtAssocCentFuCh[trigBin]->Fill(aj,jetAssocPt,fCent);
 682         }
 683       }
 684     }
 685   }
 686
 687 }
 688
 689 //________________________________________________________________________
 690 void AliAnalysisTaskEmcalDiJetAna::FillThreeJetHistos(const AliEmcalJet *jet1, const AliEmcalJet *jet2, const AliEmcalJet *jet3, const Int_t mode) {
 691   //
 692   // Fill histos
 693   // mode: full vs full        = 0
 694   //       charged vs charged  = 1
 695   //       full vs charged     = 2
 696   //
 697
 698   Int_t typet = 0;
 699   Int_t typea = 0;
 700   if(mode==0) { //full-full
 701     typet = fContainerFull;
 702     typea = fContainerFull;
 703   }
 704   else if(mode==1) { //charged-charged
 705     typet = fContainerCharged;
 706     typea = fContainerCharged;
 707   }
 708   else if(mode==2) { //full-charged
 709     typet = fContainerFull;
 710     typea = fContainerCharged;
 711   }
 712   else {
 713     AliWarning(Form("%s: mode %d of dijet correlation not defined!",GetName(),mode));
 714     return;
 715   }
 716
 717   Double_t jetTrigPt = GetJetPt(jet1,typet);
 718   Double_t jetAssoc2Pt = GetJetPt(jet2,typea);
 719   Double_t jetAssoc3Pt = GetJetPt(jet3,typea);
 720
 721   Double_t deltaPhi12 = GetDeltaPhi(jet1->Phi(),jet2->Phi());
 722   Double_t deltaPhi13 = GetDeltaPhi(jet1->Phi(),jet3->Phi());
 723   Double_t deltaPhi23 = GetDeltaPhi(jet2->Phi(),jet3->Phi());
 724
 725   Double_t kT12 = TMath::Abs(jetTrigPt*TMath::Sin(deltaPhi12));
 726   Double_t kT13 = TMath::Abs(jetTrigPt*TMath::Sin(deltaPhi13));
 727
 728   Double_t dPhiMin = TMath::Pi() - 1./3.*TMath::Pi();
 729   Double_t dPhiMax = TMath::Pi() + 1./3.*TMath::Pi();
 730
 731   Int_t trigBin = GetPtTriggerBin(jetTrigPt);
 732
 733   if(jetAssoc2Pt>20. && jetAssoc3Pt>20.) {
 734     if(mode==1) {
 735       fh3PtTrigDPhi1DPhi2Ch->Fill(jetTrigPt,deltaPhi12,deltaPhi13);
 736       fh3PtAssoc1PtAssoc2DPhi23Ch[trigBin]->Fill(jetAssoc2Pt,jetAssoc3Pt,deltaPhi23);
 737     }
 738     else if(mode==1) {
 739       fh3PtTrigDPhi1DPhi2FuCh->Fill(jetTrigPt,deltaPhi12,deltaPhi13);
 740       fh3PtAssoc1PtAssoc2DPhi23FuCh[trigBin]->Fill(jetAssoc2Pt,jetAssoc3Pt,deltaPhi23);
 741     }
 742
 743     if(deltaPhi12>dPhiMin && deltaPhi12<dPhiMax) {
 744       if(mode==1)
 745         fh3PtTrigKt1Kt2Ch->Fill(jetTrigPt,kT12,kT13);
 746       else if(mode==2)
 747         fh3PtTrigKt1Kt2FuCh->Fill(jetTrigPt,kT12,kT13);
 748     }
 749   }
 750
 751 }
 752
 753 //________________________________________________________________________
 754 Int_t AliAnalysisTaskEmcalDiJetAna::GetPtTriggerBin(Double_t pt) {
 755
 756   Int_t binTrig = -1;
 757   if(pt>=20 && pt<40)
 758     binTrig = 0;
 759   else if(pt>=40 && pt<60)
 760     binTrig = 1;
 761   else if(pt>=60 && pt<80)
 762     binTrig = 2;
 763   else if(pt>=80 && pt<100)
 764     binTrig = 3;
 765
 766   return binTrig;
 767 }
 768
 769 //________________________________________________________________________
 770 void AliAnalysisTaskEmcalDiJetAna::FillMatchFullChargedHistos(Int_t cFull,Int_t cCharged) {
 771   //
 772   // Match full to charged jets and fill histo
 773   //
 774
 775   Int_t match = MatchFullAndChargedJets(cFull,cCharged);
 776   if(match==0) {
 777     AliDebug(11,Form("%s: matching failed",GetName()));
 778     return;
 779   }
 780
 781   for(int ig = 0;ig < GetNJets(cFull);++ig){
 782     AliEmcalJet *jetFull = static_cast<AliEmcalJet*>(GetAcceptJetFromArray(ig, cFull));
 783     if(!jetFull) continue;
 784
 785     AliEmcalJet *jetCh = jetFull->ClosestJet();
 786     if(!jetCh) continue;
 787
 788     Double_t shFraction = GetFractionSharedPt(jetFull,jetCh);
 789     Double_t matchVars[7] = {
 790       jetFull->Pt(),
 791       jetCh->Pt(),
 792       GetDeltaPhi(jetFull->Phi(),jetCh->Phi()),
 793       jetFull->Eta()-jetCh->Eta(),
 794       GetDeltaR(jetFull,jetCh),
 795       shFraction,TMath::Min((Float_t)ig+0.5,2.5)
 796     };
 797       fhnMatchingFullCharged->Fill(matchVars);
 798
 799   }//loop over full jets
 800
 801 }
 802
 803
 804 //________________________________________________________________________
 805 Int_t AliAnalysisTaskEmcalDiJetAna::MatchFullAndChargedJets(Int_t cFull, Int_t cCharged) {
 806   //
 807   // Match charged jets to full jets
 808   //
 809
 810   if(GetNJets(cFull)<1) {
 811     AliDebug(2,Form("%s: no full jets: %d", GetName(),GetNJets(cFull)));
 812     return 0;
 813   }
 814
 815   if(GetNJets(cCharged)<1) {
 816     AliDebug(2,Form("%s: no charged jets: %d", GetName(),GetNJets(cCharged)));
 817     return 0;
 818   }
 819
 820   TClonesArray *cJetsFull = GetJetArray(cFull);
 821   TClonesArray *cJetsCharged = GetJetArray(cCharged);
 822
 823   if(!cJetsFull) {
 824     AliDebug(2,Form("%s: no full jet array",GetName()));
 825     return 0;
 826   }
 827
 828   if(!cJetsCharged) {
 829     AliDebug(2,Form("%s: no charged jet array",GetName()));
 830     return 0;
 831   }
 832
 833   if(!fMatchingDone) {
 834       MatchJetsGeo(cFull, cCharged, 0);
 835       return 1;
 836   } else {
 837     AliDebug(11,Form("%s: Matching already done before",GetName()));
 838     return 1;
 839   }
 840
 841 }
 842
 843 //_______________________________________________________________________
 844 void AliAnalysisTaskEmcalDiJetAna::Terminate(Option_t *)
 845 {
 846   // Called once at the end of the analysis.
 847 }
 848
 849
 850