PWGHF/vertexingHF/macros/AddTaskCFMultiVarMultiStep.C

   1 //DEFINITION OF A FEW CONSTANTS
   2 const Double_t ymin  = -2.1 ;
   3 const Double_t ymax  =  2.1 ;
   4 const Double_t cosmin = -1.05;
   5 const Double_t cosmax =  1.05;
   6 const Double_t cTmin = 0;  // micron
   7 const Double_t cTmax = 500;  // micron
   8 const Double_t dcamin = 0;  // micron
   9 const Double_t dcamax = 500;  // micron
  10 const Double_t d0min = -1000;  // micron
  11 const Double_t d0max = 1000;  // micron
  12 const Double_t d0xd0min = -100000;  // micron
  13 const Double_t d0xd0max = 100000;  // micron
  14 const Double_t phimin = 0.0;
  15 const Int_t    mintrackrefsTPC = 2 ;
  16 const Int_t    mintrackrefsITS = 3 ;
  17 const Int_t    charge  = 1 ;
  18 const Int_t    minclustersTPC = 50 ;
  19 // cuts
  20 const Double_t ptmin = 0.1;
  21 const Double_t ptmax = 9999.;
  22 const Double_t etamin = -0.9;
  23 const Double_t etamax = 0.9;
  24 const Double_t zmin = -15;
  25 const Double_t zmax = 15;
  26 //const Int_t    minITSClusters = 5;
  27
  28 //----------------------------------------------------
  29
  30 AliCFHeavyFlavourTaskMultiVarMultiStep *AddTaskCFMultiVarMultiStep(const char* cutFile = "./D0toKpiCuts.root",Bool_t isKeepD0fromB=kFALSE, Bool_t isKeepD0fromBOnly=kFALSE, Int_t pdgCode = 421, Char_t isSign = 2)
  31 {
  32         // isSign = 0 --> D0 only
  33         // isSign = 1 --> D0bar only
  34         // isSign = 2 --> D0 + D0bar
  35
  36         TString expected;
  37         if (isSign == 0 && pdgCode != 421){
  38                 AliError(Form("Error setting PDG code (%d) and sign (0 --> D0 only): they are not compatible, returning"));
  39                 return 0x0;
  40         }
  41         else if (isSign == 1 && pdgCode != -421){
  42                 AliError(Form("Error setting PDG code (%d) and sign (1 --> D0bar only): they are not compatible, returning"));
  43                 return 0x0;
  44         }
  45         else if (isSign > 2 || isSign < 0){
  46                 AliError(Form("Sign not valid (%d, possible values are 0, 1, 2), returning"));
  47                 return 0x0;
  48         }
  49
  50
  51         printf("Adding CF task using cuts from file %s\n",cutFile);
  52
  53         TFile* fileCuts = TFile::Open(cutFile);
  54         if(!fileCuts || (fileCuts && !fileCuts->IsOpen())){
  55           AliError("Wrong cut file");
  56           return 0x0;
  57         }
  58         AliRDHFCutsD0toKpi *cutsD0toKpi = (AliRDHFCutsD0toKpi*)fileCuts->Get("D0toKpiCutsStandard");
  59
  60         // check that the fKeepD0fromB flag is set to true when the fKeepD0fromBOnly flag is true
  61         //  for now the binning is the same than for all D's
  62         if(isKeepD0fromBOnly) isKeepD0fromB = true;
  63
  64         Double_t ptmin_0_6;
  65         Double_t ptmax_0_6;
  66         Double_t ptmin_6_8;
  67         Double_t ptmax_6_8;
  68         Double_t ptmin_8_16;
  69         Double_t ptmax_8_16;
  70         Double_t ptmin_16_24;
  71         Double_t ptmax_16_24;
  72
  73         ptmin_0_6 =  0.0 ;
  74         ptmax_0_6 =  6.0 ;
  75         ptmin_6_8 =  6.0 ;
  76         ptmax_6_8 =  8.0 ;
  77         ptmin_8_16 =  8.0 ;
  78         ptmax_8_16 =  16.0 ;
  79         ptmin_16_24 =  16.0 ;
  80         ptmax_16_24 =  24.0 ;
  81
  82         //CONTAINER DEFINITION
  83         Info("AliCFHeavyFlavourTaskMultiVarMultiStep","SETUP CONTAINER");
  84         //the sensitive variables, their indices
  85         UInt_t ipt = 0;
  86         UInt_t iy  = 1;
  87         UInt_t icosThetaStar  = 2;
  88         UInt_t ipTpi  = 3;
  89         UInt_t ipTk  = 4;
  90         UInt_t icT  = 5;
  91         UInt_t idca  = 6;
  92         UInt_t id0pi  = 7;
  93         UInt_t id0K  = 8;
  94         UInt_t id0xd0  = 9;
  95         UInt_t ipointing  = 10;
  96         UInt_t iphi  = 11;
  97         UInt_t iz  = 12;
  98
  99         const Double_t phimax = 2*TMath::Pi();
 100
 101         //Setting up the container grid...
 102         UInt_t nstep = 10; //number of selection steps: MC with limited acceptance, MC, Acceptance, Vertex, Refit, Reco (no cuts), RecoAcceptance, RecoITSClusters (RecoAcceptance included), RecoPPR (RecoAcceptance+RecoITSCluster included), RecoPID
 103         const Int_t nvar   = 13 ; //number of variables on the grid:pt, y, cosThetaStar, pTpi, pTk, cT, dca, d0pi, d0K, d0xd0, cosPointingAngle, phi
 104
 105         //Setting the bins: pt, ptPi, and ptK are considered seprately because for them you can either define the binning by hand, or using the cuts file
 106
 107         //arrays for the number of bins in each dimension
 108         Int_t iBin[nvar];
 109
 110         //OPTION 1: defining the pt, ptPi, ptK bins by hand...
 111         const Int_t nbin0_0_6  = 6 ; //bins in pt from 0 to 6 GeV
 112         const Int_t nbin0_6_8  = 1 ; //bins in pt from 6 to 8 GeV
 113         const Int_t nbin0_8_16  = 2 ; //bins in pt from 8 to 16 GeV
 114         const Int_t nbin0_16_24  = 1 ; //bins in pt from 16 to 24 GeV
 115         const Int_t nbin3_0_6  = 6 ; //bins in ptPi from 0 to 6 GeV
 116         const Int_t nbin3_6_8  = 1 ; //bins in ptPi from 6 to 8 GeV
 117         const Int_t nbin3_8_16  = 2 ; //bins in ptPi from 8 to 16 GeV
 118         const Int_t nbin3_16_24  = 1 ; //bins in ptPi from 16 to 24 GeV
 119         const Int_t nbin4_0_6  = 6 ; //bins in ptK from 0 to 6 GeV
 120         const Int_t nbin4_6_8  = 1 ; //bins in ptK from 6 to 8 GeV
 121         const Int_t nbin4_8_16  = 2 ; //bins in ptK from 8 to 16 GeV
 122         const Int_t nbin4_16_24  = 1 ; //bins in ptK from 16 to 24 GeV
 123         iBin[0]=nbin0_0_6+nbin0_6_8+nbin0_8_16+nbin0_16_24;
 124         iBin[3]=nbin3_0_6+nbin3_6_8+nbin3_8_16+nbin3_16_24;
 125         iBin[4]=nbin4_0_6+nbin4_6_8+nbin4_8_16+nbin4_16_24;
 126         Double_t *binLim0=new Double_t[iBin[0]+1];
 127         Double_t *binLim3=new Double_t[iBin[3]+1];
 128         Double_t *binLim4=new Double_t[iBin[4]+1];
 129
 130         // values for bin lower bounds
 131         // pt
 132         for(Int_t i=0; i<=nbin0_0_6; i++) binLim0[i]=(Double_t)ptmin_0_6 + (ptmax_0_6-ptmin_0_6)/nbin0_0_6*(Double_t)i ;
 133         if (binLim0[nbin0_0_6] != ptmin_6_8)  {
 134                 Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 1st range - differs from expected!\n");
 135         }
 136         for(Int_t i=0; i<=nbin0_6_8; i++) binLim0[i+nbin0_0_6]=(Double_t)ptmin_6_8 + (ptmax_6_8-ptmin_6_8)/nbin0_6_8*(Double_t)i ;
 137         if (binLim0[nbin0_0_6+nbin0_6_8] != ptmin_8_16)  {
 138                 Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
 139         }
 140         for(Int_t i=0; i<=nbin0_8_16; i++) binLim0[i+nbin0_0_6+nbin0_6_8]=(Double_t)ptmin_8_16 + (ptmax_8_16-ptmin_8_16)/nbin0_8_16*(Double_t)i ;
 141         if (binLim0[nbin0_0_6+nbin0_6_8+nbin0_8_16] != ptmin_16_24)  {
 142                 Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
 143         }
 144         for(Int_t i=0; i<=nbin0_16_24; i++) binLim0[i+nbin0_0_6+nbin0_6_8+nbin0_8_16]=(Double_t)ptmin_16_24 + (ptmax_16_24-ptmin_16_24)/nbin0_16_24*(Double_t)i ;
 145
 146         // ptPi
 147         for(Int_t i=0; i<=nbin3_0_6; i++) binLim3[i]=(Double_t)ptmin_0_6 + (ptmax_0_6-ptmin_0_6)/nbin3_0_6*(Double_t)i ;
 148         if (binLim3[nbin3_0_6] != ptmin_6_8)  {
 149                 Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 1st range - differs from expected!\n");
 150         }
 151         for(Int_t i=0; i<=nbin3_6_8; i++) binLim3[i+nbin3_0_6]=(Double_t)ptmin_6_8 + (ptmax_6_8-ptmin_6_8)/nbin3_6_8*(Double_t)i ;
 152         if (binLim3[nbin3_0_6+nbin3_6_8] != ptmin_8_16)  {
 153                 Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
 154         }
 155         for(Int_t i=0; i<=nbin3_8_16; i++) binLim3[i+nbin3_0_6+nbin0_6_8]=(Double_t)ptmin_8_16 + (ptmax_8_16-ptmin_8_16)/nbin3_8_16*(Double_t)i ;
 156         if (binLim3[nbin3_0_6+nbin3_6_8+nbin3_8_16] != ptmin_16_24)  {
 157                 Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
 158         }
 159         for(Int_t i=0; i<=nbin3_16_24; i++) binLim3[i+nbin3_0_6+nbin3_6_8+nbin3_8_16]=(Double_t)ptmin_16_24 + (ptmax_16_24-ptmin_16_24)/nbin3_16_24*(Double_t)i ;
 160
 161         // ptKa
 162         for(Int_t i=0; i<=nbin4_0_6; i++) binLim4[i]=(Double_t)ptmin_0_6 + (ptmax_0_6-ptmin_0_6)/nbin4_0_6*(Double_t)i ;
 163         if (binLim4[nbin4_0_6] != ptmin_6_8)  {
 164                 Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 1st range - differs from expected!\n");
 165         }
 166         for(Int_t i=0; i<=nbin4_6_8; i++) binLim4[i+nbin4_0_6]=(Double_t)ptmin_6_8 + (ptmax_6_8-ptmin_6_8)/nbin4_6_8*(Double_t)i ;
 167         if (binLim4[nbin4_0_6+nbin4_6_8] != ptmin_8_16)  {
 168                 Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
 169         }
 170         for(Int_t i=0; i<=nbin4_8_16; i++) binLim4[i+nbin4_0_6+nbin0_6_8]=(Double_t)ptmin_8_16 + (ptmax_8_16-ptmin_8_16)/nbin4_8_16*(Double_t)i ;
 171         if (binLim4[nbin4_0_6+nbin4_6_8+nbin4_8_16] != ptmin_16_24)  {
 172                 Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
 173         }
 174         for(Int_t i=0; i<=nbin4_16_24; i++) binLim4[i+nbin4_0_6+nbin4_6_8+nbin4_8_16]=(Double_t)ptmin_16_24 + (ptmax_16_24-ptmin_16_24)/nbin4_16_24*(Double_t)i ;
 175
 176         //OPTION 2: ...or from the cuts file
 177
 178         //const Int_t nbin0 = cutsD0toKpi->GetNPtBins(); // bins in pT
 179         //iBin[0]=nbin0;
 180         //iBin[3]=nbin0;
 181         //iBin[4]=nbin0;
 182         // values for bin lower bounds
 183         //Float_t* floatbinLim0 = cutsD0toKpi->GetPtBinLimits();
 184         //for (Int_t ibin0 = 0 ; ibin0<iBin[0]+1; ibin0++){
 185         //      binLim0[ibin0] = (Double_t)floatbinLim0[ibin0];
 186         //      binLim3[ibin0] = (Double_t)floatbinLim0[ibin0];
 187         //      binLim4[ibin0] = (Double_t)floatbinLim0[ibin0];
 188         //}
 189         //for(Int_t i=0; i<=nbin0; i++) printf("binLim0[%d]=%f\n",i,binLim0[i]);
 190
 191         //printf("pT: nbin (from cuts file) = %d\n",nbin0);
 192
 193         // defining now the binning for the other variables:
 194
 195         const Int_t nbin1  = 42 ; //bins in y
 196         const Int_t nbin2  = 42 ; //bins in cosThetaStar
 197         const Int_t nbin5  = 24 ; //bins in cT
 198         const Int_t nbin6  = 24 ; //bins in dca
 199         const Int_t nbin7  = 100 ; //bins in d0pi
 200         const Int_t nbin8  = 100 ; //bins in d0K
 201         const Int_t nbin9  = 80 ; //bins in d0xd0
 202         const Int_t nbin10  = 1050 ; //bins in cosPointingAngle
 203         const Int_t nbin11  = 20 ; //bins in Phi
 204         const Int_t nbin12  = 60 ; //bins in z vertex
 205
 206         iBin[1]=nbin1;
 207         iBin[2]=nbin2;
 208         iBin[5]=nbin5;
 209         iBin[6]=nbin6;
 210         iBin[7]=nbin7;
 211         iBin[8]=nbin8;
 212         iBin[9]=nbin9;
 213         iBin[10]=nbin10;
 214         iBin[11]=nbin11;
 215         iBin[12]=nbin12;
 216
 217         //arrays for lower bounds :
 218         Double_t *binLim1=new Double_t[iBin[1]+1];
 219         Double_t *binLim2=new Double_t[iBin[2]+1];
 220         Double_t *binLim5=new Double_t[iBin[5]+1];
 221         Double_t *binLim6=new Double_t[iBin[6]+1];
 222         Double_t *binLim7=new Double_t[iBin[7]+1];
 223         Double_t *binLim8=new Double_t[iBin[8]+1];
 224         Double_t *binLim9=new Double_t[iBin[9]+1];
 225         Double_t *binLim10=new Double_t[iBin[10]+1];
 226         Double_t *binLim11=new Double_t[iBin[11]+1];
 227         Double_t *binLim12=new Double_t[iBin[12]+1];
 228
 229         // y
 230         for(Int_t i=0; i<=nbin1; i++) binLim1[i]=(Double_t)ymin  + (ymax-ymin)  /nbin1*(Double_t)i ;
 231
 232         // cosThetaStar
 233         for(Int_t i=0; i<=nbin2; i++) binLim2[i]=(Double_t)cosmin  + (cosmax-cosmin)  /nbin2*(Double_t)i ;
 234
 235         // cT
 236         for(Int_t i=0; i<=nbin5; i++) binLim5[i]=(Double_t)cTmin  + (cTmax-cTmin)  /nbin5*(Double_t)i ;
 237
 238         // dca
 239         for(Int_t i=0; i<=nbin6; i++) binLim6[i]=(Double_t)dcamin  + (dcamax-dcamin)  /nbin6*(Double_t)i ;
 240
 241         // d0pi
 242         for(Int_t i=0; i<=nbin7; i++) binLim7[i]=(Double_t)d0min  + (d0max-d0min)  /nbin7*(Double_t)i ;
 243
 244         // d0K
 245         for(Int_t i=0; i<=nbin8; i++) binLim8[i]=(Double_t)d0min  + (d0max-d0min)  /nbin8*(Double_t)i ;
 246
 247         // d0xd0
 248         for(Int_t i=0; i<=nbin9; i++) binLim9[i]=(Double_t)d0xd0min  + (d0xd0max-d0xd0min)  /nbin9*(Double_t)i ;
 249
 250         // cosPointingAngle
 251         for(Int_t i=0; i<=nbin10; i++) binLim10[i]=(Double_t)cosmin  + (cosmax-cosmin)  /nbin10*(Double_t)i ;
 252
 253         // Phi
 254         for(Int_t i=0; i<=nbin11; i++) binLim11[i]=(Double_t)phimin  + (phimax-phimin)  /nbin11*(Double_t)i ;
 255
 256         // z Primary Vertex
 257         for(Int_t i=0; i<=nbin12; i++) {
 258                 binLim12[i]=(Double_t)zmin  + (zmax-zmin)  /nbin12*(Double_t)i ;
 259                 //              Info("AliCFHeavyFlavourTaskMultiVarMultiStep",Form("i-th bin, lower limit = %f", binLim12[i]));
 260         }
 261
 262         //one "container" for MC
 263         TString nameContainer="";
 264         if(!isKeepD0fromB) {
 265           nameContainer="CFHFccontainer0";
 266         }
 267         else if(isKeepD0fromBOnly){
 268           nameContainer="CFHFccontainer0D0fromB";
 269         }
 270         else  {
 271           nameContainer="CFHFccontainer0allD0";
 272
 273         }
 274
 275         AliCFContainer* container = new AliCFContainer(nameContainer,"container for tracks",nstep,nvar,iBin);
 276         //setting the bin limits
 277         printf("pt\n");
 278         container -> SetBinLimits(ipt,binLim0);
 279         printf("y\n");
 280         container -> SetBinLimits(iy,binLim1);
 281         printf("cts\n");
 282         container -> SetBinLimits(icosThetaStar,binLim2);
 283         printf("ptPi\n");
 284         container -> SetBinLimits(ipTpi,binLim3);
 285         printf("ptK\n");
 286         container -> SetBinLimits(ipTk,binLim4);
 287         printf("cT\n");
 288         container -> SetBinLimits(icT,binLim5);
 289         printf("dca\n");
 290         container -> SetBinLimits(idca,binLim6);
 291         printf("d0Pi\n");
 292         container -> SetBinLimits(id0pi,binLim7);
 293         printf("d0K\n");
 294         container -> SetBinLimits(id0K,binLim8);
 295         printf("d0xd0\n");
 296         container -> SetBinLimits(id0xd0,binLim9);
 297         printf("pointing\n");
 298         container -> SetBinLimits(ipointing,binLim10);
 299         printf("phi\n");
 300         container -> SetBinLimits(iphi,binLim11);
 301         printf("z\n");
 302         container -> SetBinLimits(iz,binLim12);
 303
 304         container -> SetStepTitle(0, "MCLimAcc");
 305         container -> SetStepTitle(1, "MC");
 306         container -> SetStepTitle(2, "MCAcc");
 307         container -> SetStepTitle(3, "RecoVertex");
 308         container -> SetStepTitle(4, "RecoRefit");
 309         container -> SetStepTitle(5, "Reco");
 310         container -> SetStepTitle(6, "RecoAcc");
 311         container -> SetStepTitle(7, "RecoITSCluster");
 312         container -> SetStepTitle(8, "RecoCuts");
 313         container -> SetStepTitle(9, "RecoPID");
 314
 315         container -> SetVarTitle(ipt,"pt");
 316         container -> SetVarTitle(iy,"y");
 317         container -> SetVarTitle(icosThetaStar, "cosThetaStar");
 318         container -> SetVarTitle(ipTpi, "ptpi");
 319         container -> SetVarTitle(ipTk, "ptK");
 320         container -> SetVarTitle(icT, "ct");
 321         container -> SetVarTitle(idca, "dca");
 322         container -> SetVarTitle(id0pi, "d0pi");
 323         container -> SetVarTitle(id0K, "d0K");
 324         container -> SetVarTitle(id0xd0, "d0xd0");
 325         container -> SetVarTitle(ipointing, "piointing");
 326         container -> SetVarTitle(iphi, "phi");
 327         container -> SetVarTitle(iz, "z");
 328
 329
 330         //CREATE THE  CUTS -----------------------------------------------
 331
 332         // Gen-Level kinematic cuts
 333         AliCFTrackKineCuts *mcKineCuts = new AliCFTrackKineCuts("mcKineCuts","MC-level kinematic cuts");
 334
 335         //Particle-Level cuts:
 336         AliCFParticleGenCuts* mcGenCuts = new AliCFParticleGenCuts("mcGenCuts","MC particle generation cuts");
 337         Bool_t useAbsolute = kTRUE;
 338         if (isSign != 2){
 339                 useAbsolute = kFALSE;
 340         }
 341         mcGenCuts->SetRequirePdgCode(pdgCode, useAbsolute);  // kTRUE set in order to include particle AND antiparticle
 342         mcGenCuts->SetAODMC(1); //special flag for reading MC in AOD tree (important)
 343
 344         // Acceptance cuts:
 345         AliCFAcceptanceCuts* accCuts = new AliCFAcceptanceCuts("accCuts", "Acceptance cuts");
 346         AliCFTrackKineCuts *kineAccCuts = new AliCFTrackKineCuts("kineAccCuts","Kine-Acceptance cuts");
 347         kineAccCuts->SetPtRange(ptmin,ptmax);
 348         kineAccCuts->SetEtaRange(etamin,etamax);
 349
 350         // Rec-Level kinematic cuts
 351         AliCFTrackKineCuts *recKineCuts = new AliCFTrackKineCuts("recKineCuts","rec-level kine cuts");
 352
 353         AliCFTrackQualityCuts *recQualityCuts = new AliCFTrackQualityCuts("recQualityCuts","rec-level quality cuts");
 354
 355         AliCFTrackIsPrimaryCuts *recIsPrimaryCuts = new AliCFTrackIsPrimaryCuts("recIsPrimaryCuts","rec-level isPrimary cuts");
 356
 357         printf("CREATE MC KINE CUTS\n");
 358         TObjArray* mcList = new TObjArray(0) ;
 359         mcList->AddLast(mcKineCuts);
 360         mcList->AddLast(mcGenCuts);
 361
 362         printf("CREATE ACCEPTANCE CUTS\n");
 363         TObjArray* accList = new TObjArray(0) ;
 364         accList->AddLast(kineAccCuts);
 365
 366         printf("CREATE RECONSTRUCTION CUTS\n");
 367         TObjArray* recList = new TObjArray(0) ;   // not used!!
 368         recList->AddLast(recKineCuts);
 369         recList->AddLast(recQualityCuts);
 370         recList->AddLast(recIsPrimaryCuts);
 371
 372         TObjArray* emptyList = new TObjArray(0);
 373
 374         //CREATE THE INTERFACE TO CORRECTION FRAMEWORK USED IN THE TASK
 375         printf("CREATE INTERFACE AND CUTS\n");
 376         AliCFManager* man = new AliCFManager() ;
 377         AliLog::SetClassDebugLevel("AliCFManager",AliLog::kError);
 378         man->SetParticleContainer     (container);
 379         man->SetParticleCutsList(0 , mcList); // MC, Limited Acceptance
 380         man->SetParticleCutsList(1 , mcList); // MC
 381         man->SetParticleCutsList(2 , accList); // Acceptance
 382         man->SetParticleCutsList(3 , emptyList); // Vertex
 383         man->SetParticleCutsList(4 , emptyList); // Refit
 384         man->SetParticleCutsList(5 , emptyList); // AOD
 385         man->SetParticleCutsList(6 , emptyList); // AOD in Acceptance
 386         man->SetParticleCutsList(7 , emptyList); // AOD with required n. of ITS clusters
 387         man->SetParticleCutsList(8 , emptyList); // AOD Reco (PPR cuts implemented in Task)
 388         man->SetParticleCutsList(9 , emptyList); // AOD Reco PID
 389
 390         // Get the pointer to the existing analysis manager via the static access method.
 391         //==============================================================================
 392         AliAnalysisManager *mgr = AliAnalysisManager::GetAnalysisManager();
 393         if (!mgr) {
 394           ::Error("AddTaskCompareHF", "No analysis manager to connect to.");
 395           return NULL;
 396         }
 397         //CREATE THE TASK
 398         printf("CREATE TASK\n");
 399         // create the task
 400         AliCFHeavyFlavourTaskMultiVarMultiStep *task = new AliCFHeavyFlavourTaskMultiVarMultiStep("AliCFHeavyFlavourTaskMultiVarMultiStep",cutsD0toKpi);
 401         task->SetFillFromGenerated(kFALSE);
 402         task->SetCFManager(man); //here is set the CF manager
 403         task->SetKeepD0fromB(isKeepD0fromB);
 404         task->SetKeepD0fromBOnly(isKeepD0fromBOnly);
 405         task->SetUseWeight(kFALSE);  // set to true if you want to filled a weight CF
 406         task->SetSign(isSign);
 407
 408         Printf("***************** CONTAINER SETTINGS *****************");
 409         Printf("FillFromGenerated = %d",(Int_t)task->GetFillFromGenerated());
 410         Printf("keepD0fromB = %d",(Int_t)task->GetKeepD0fromB());
 411         Printf("keepD0fromBOnly = %d",(Int_t)task->GetKeepD0fromBOnly());
 412         Printf("UseWeight = %d",(Int_t)task->GetUseWeight());
 413         Printf("Sign = %d",(Int_t)task->GetSign());
 414         Printf("***************END CONTAINER SETTINGS *****************\n");
 415
 416         //-----------------------------------------------------------//
 417         //   create correlation matrix for unfolding - only eta-pt   //
 418         //-----------------------------------------------------------//
 419
 420         Bool_t AcceptanceUnf = kTRUE; // unfold at acceptance level, otherwise PPR
 421
 422         Int_t thnDim[4];
 423
 424         //first half  : reconstructed
 425         //second half : MC
 426
 427         thnDim[0] = iBin[0];
 428         thnDim[2] = iBin[0];
 429         thnDim[1] = iBin[1];
 430         thnDim[3] = iBin[1];
 431
 432         TString nameCorr="";
 433         if(!isKeepD0fromB) {
 434           nameCorr="CFHFcorr0";
 435         }
 436         else if(isKeepD0fromBOnly){
 437           nameCorr= "CFHFcorr0KeepD0fromBOnly";
 438         }
 439         else  {
 440           nameCorr="CFHFcorr0allD0";
 441
 442         }
 443
 444         THnSparseD* correlation = new THnSparseD(nameCorr,"THnSparse with correlations",4,thnDim);
 445         Double_t** binEdges = new Double_t[2];
 446
 447         // set bin limits
 448
 449         binEdges[0]= binLim0;
 450         binEdges[1]= binLim1;
 451
 452         correlation->SetBinEdges(0,binEdges[0]);
 453         correlation->SetBinEdges(2,binEdges[0]);
 454
 455         correlation->SetBinEdges(1,binEdges[1]);
 456         correlation->SetBinEdges(3,binEdges[1]);
 457
 458         correlation->Sumw2();
 459
 460         // correlation matrix ready
 461         //------------------------------------------------//
 462
 463         task->SetCorrelationMatrix(correlation); // correlation matrix for unfolding
 464
 465         // Create and connect containers for input/output
 466
 467         // ------ input data ------
 468         AliAnalysisDataContainer *cinput0  = mgr->GetCommonInputContainer();
 469
 470         // ----- output data -----
 471
 472         TString outputfile = AliAnalysisManager::GetCommonFileName();
 473         TString output1name="", output2name="", output3name="", output4name="";
 474         output2name=nameContainer;
 475         output3name=nameCorr;
 476         if(!isKeepD0fromB) {
 477           outputfile += ":PWG3_D2H_CFtaskD0toKpi";
 478           output1name="CFHFchist0";
 479         }
 480         else if(isKeepD0fromBOnly){
 481           outputfile += ":PWG3_D2H_CFtaskD0toKpiKeepD0fromBOnly";
 482           output1name="CFHFchist0D0fromB";
 483         }
 484         else  {
 485           outputfile += ":PWG3_D2H_CFtaskD0toKpiKeepD0fromB";
 486           output1name="CFHFchist0allD0";
 487
 488         }
 489         output4name="Cuts";
 490
 491         //now comes user's output objects :
 492         // output TH1I for event counting
 493         AliAnalysisDataContainer *coutput1 = mgr->CreateContainer(output1name, TH1I::Class(),AliAnalysisManager::kOutputContainer,outputfile.Data());
 494         // output Correction Framework Container (for acceptance & efficiency calculations)
 495         AliAnalysisDataContainer *coutput2 = mgr->CreateContainer(output2name, AliCFContainer::Class(),AliAnalysisManager::kOutputContainer,outputfile.Data());
 496         // Unfolding - correlation matrix
 497         AliAnalysisDataContainer *coutput3 = mgr->CreateContainer(output3name, THnSparseD::Class(),AliAnalysisManager::kOutputContainer,outputfile.Data());
 498         AliAnalysisDataContainer *coutput4 = mgr->CreateContainer(output4name, AliRDHFCutsD0toKpi::Class(),AliAnalysisManager::kOutputContainer,outputfile.Data());
 499
 500         mgr->AddTask(task);
 501
 502         mgr->ConnectInput(task,0,mgr->GetCommonInputContainer());
 503         mgr->ConnectOutput(task,1,coutput1);
 504         mgr->ConnectOutput(task,2,coutput2);
 505         mgr->ConnectOutput(task,3,coutput3);
 506         mgr->ConnectOutput(task,4,coutput4);
 507         return task;
 508 }
 509