AddTaskCFVertexingHF.C

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//DEFINITION OF A FEW CONSTANTS
const Double_t ymin  = -1.2 ;
const Double_t ymax  =  1.2 ;
const Double_t cosminTS = -1.05;
const Double_t cosmaxTS =  1.05;
const Double_t cosmin = 0.7;
const Double_t cosmax =  1.02;
const Double_t cTmin = 0;  // micron
const Double_t cTmax = 300;  // micron
const Double_t dcamin = 0;  // micron
const Double_t dcamax = 600;  // micron
const Double_t d0xd0min = -80000;  // micron
const Double_t d0xd0max = 100000;  // micron
const Double_t phimin = 0.0;  
const Int_t    mintrackrefsTPC = 2 ;
const Int_t    mintrackrefsITS = 3 ;
const Int_t    charge  = 1 ;
const Int_t    minclustersTPC = 50 ;
// cuts
const Double_t ptmin = 0.1;
const Double_t ptmax = 9999.;
const Double_t etamin = -0.9;
const Double_t etamax = 0.9;
const Double_t zmin = -15;
const Double_t zmax = 15;
const Int_t    minITSClusters = 5;

const Float_t centmin_0_10 = 0.;
const Float_t centmax_0_10 = 10.;
const Float_t centmin_10_60 = 10.;
const Float_t centmax_10_60 = 60.;
const Float_t centmin_60_100 = 60.;
const Float_t centmax_60_100 = 100.;
const Float_t centmax = 100.;
const Float_t fakemin = -0.5;
const Float_t fakemax = 2.5.;
const Float_t cosminXY = 0.95;
const Float_t cosmaxXY = 1.0;
const Float_t normDecLXYmin = 0;
const Float_t normDecLXYmax = 20;
const Float_t multmin_0_20 = 0;
const Float_t multmax_0_20 = 20;
const Float_t multmin_20_50 = 20;
const Float_t multmax_20_50 = 50;
const Float_t multmin_50_80 = 50;
const Float_t multmax_50_80 = 80;
const Float_t multmin_80_100 = 80;
const Float_t multmax_80_100 = 100;
const Float_t multmin_100_400 = 100; // Only for pPb
const Float_t multmax_100_400 = 400; // Only for pPb

//
// useWeight : flag for Pt weights (default are pp 2010 weights, functions per MC production existing)
// useFlatPtWeight : flag to test flat Pt weights (computed for LHC10f7a MC)
// useZWeight : flag to use z-vtx weight (used for systematics for now)
// useNchWeight : flag to use weights on the distribution of simulated primary particles (default pp 2010)
// useNtrkWeight : flag to use weights on the distribution of Ntracklets
// isFinePtBin : flag for fine pt bin (100 MeV from 0 to 30 GeV)
// multiplicityEstimator : varying the multiplicity (and not centrality) estimator
// isPPData : flag to switch off centrality checks when runing on pp data (reduces a lot log files)
// isPPbData : Flag for pPb data, changes the Ntrk bining
// estimatorFilename, refMult : Ntrk vs z-vtx multiplicity correction file name and average value
// isFineNtrkBin : gives Ntrk bins of 1 unit from 0-100 (200 for pPb)
//----------------------------------------------------

AliCFTaskVertexingHF *AddTaskCFVertexingHF(const char* cutFile = "./D0toKpiCuts.root", TString cutObjectName="D0toKpiCutsStandard", TString suffix="", Int_t configuration = AliCFTaskVertexingHF::kCheetah, Bool_t isKeepDfromB=kFALSE, Bool_t isKeepDfromBOnly=kFALSE, Int_t pdgCode = 421, Char_t isSign = 2, Bool_t useWeight=kFALSE, Bool_t useFlatPtWeight=kFALSE, Bool_t useZWeight=kFALSE, Bool_t useNchWeight=kFALSE, Bool_t useNtrkWeight=kFALSE, Bool_t isFinePtBin=kFALSE, TString estimatorFilename="", Int_t multiplicityEstimator = AliCFTaskVertexingHF::kNtrk10, Bool_t isPPData=kFALSE, Bool_t isPPbData=kFALSE, Double_t refMult = 9.26, Bool_t isFineNtrkBin=kFALSE)
{
  printf("Adding CF task using cuts from file %s\n",cutFile);
  if (configuration == AliCFTaskVertexingHF::kSnail){
    printf("The configuration is set to be SLOW --> all the variables will be used to fill the CF\n");
  }
  else if (configuration == AliCFTaskVertexingHF::kCheetah){
    printf("The configuration is set to be FAST --> using only pt, y, ct, phi, zvtx, centrality, fake, multiplicity to fill the CF\n");
  }
  else{
    printf("The configuration is not defined! returning\n");
    return;
  }
         
  gSystem->Sleep(2000);

  // isSign = 0 --> D0 only
  // isSign = 1 --> D0bar only
  // isSign = 2 --> D0 + D0bar

  TString expected;
  if (isSign == 0 && pdgCode < 0){
    AliError(Form("Error setting PDG code (%d) and sign (0 --> D0 only): they are not compatible, returning"));
    return 0x0;
  }
  else if (isSign == 1 && pdgCode > 0){
    AliError(Form("Error setting PDG code (%d) and sign (1 --> D0bar only): they are not compatible, returning"));
    return 0x0;
  }
  else if (isSign > 2 || isSign < 0){
    AliError(Form("Sign not valid (%d, possible values are 0, 1, 2), returning"));
    return 0x0;
  }

  TFile* fileCuts = TFile::Open(cutFile);
  if(!fileCuts || (fileCuts && !fileCuts->IsOpen())){ 
    AliError("Wrong cut file");
    return 0x0;
  }

  AliRDHFCutsD0toKpi *cutsD0toKpi = (AliRDHFCutsD0toKpi*)fileCuts->Get(cutObjectName.Data());
  
  // check that the fKeepD0fromB flag is set to true when the fKeepD0fromBOnly flag is true
  //  for now the binning is the same than for all D's
  if(isKeepDfromBOnly) isKeepDfromB = true;
  
  Double_t ptmin_0_6;
  Double_t ptmax_0_6;
  Double_t ptmin_6_8;
  Double_t ptmax_6_8;
  Double_t ptmin_8_16;
  Double_t ptmax_8_16;
  Double_t ptmin_16_24;
  Double_t ptmax_16_24;
  
  ptmin_0_6 =  0.0 ;
  ptmax_0_6 =  6.0 ;
  ptmin_6_8 =  6.0 ;
  ptmax_6_8 =  8.0 ;
  ptmin_8_16 =  8.0 ;
  ptmax_8_16 =  16.0 ;
  ptmin_16_24 =  16.0 ;
  ptmax_16_24 =  24.0 ;


  //CONTAINER DEFINITION
  Info("AliCFTaskVertexingHF","SETUP CONTAINER");
  const Double_t phimax = 2*TMath::Pi();
  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 

  //const UInt_t ipT, iy, icosThetaStar, ipTpi, ipTk, icT, idca, id0xd0, ipointing, iphi, izvtx, icent, ifake, ipointingXY, iNormDecayLXY, imult;
  const Int_t nbiny  = 24 ; //bins in y
  const Int_t nbincosThetaStar  = 42 ; //bins in cosThetaStar 
  const Int_t nbincT  = 15 ; //bins in cT
  const Int_t nbindca  = 20 ; //bins in dca
  const Int_t nbind0xd0  = 90 ; //bins in d0xd0
  const Int_t nbinpointing  = 50 ; //bins in cosPointingAngle
  const Int_t nbinphi  = 18 ; //bins in Phi
  const Int_t nbinzvtx  = 30 ; //bins in z vertex
  const Int_t nbincent = 28;  //bins in centrality
  const Int_t nbincent_0_10 = 4;  //bins in centrality between 0 and 10
  const Int_t nbincent_10_60 = 20;  //bins in centrality between 10 and 60
  const Int_t nbincent_60_100 = 4;  //bins in centrality between 60 and 100
  const Int_t nbinfake = 3;  //bins in fake
  const Int_t nbinpointingXY = 50;  //bins in cosPointingAngleXY
  const Int_t nbinnormDecayLXY = 20;  //bins in NormDecayLengthXY
  const Int_t nbinmult = 49;  //bins in multiplicity (total number)
  const Int_t nbinmult_0_20 = 20; //bins in multiplicity between 0 and 20
  const Int_t nbinmult_20_50 = 15; //bins in multiplicity between 20 and 50
  const Int_t nbinmult_50_80 = 10; //bins in multiplicity between 50 and 100
  const Int_t nbinmult_80_100 = 4; //bins in multiplicity between 50 and 100
  const Int_t nbinmult_100_400 = 6; // Only on pPb bins in multiplicity between 100 and 400
  if(isPPbData) nbinmult += nbinmult_100_400;

  //the sensitive variables, their indices

  const Int_t nvarTot   = 16 ; //number of variables on the grid:pt, y, cosThetaStar, pTpi, pTk, cT, dca, d0pi, d0K, d0xd0, cosPointingAngle, phi, z, centrality, fake, cosPointingAngleXY, normDecayLengthXY, multiplicity

  // variables' indices
  const UInt_t ipT = 0;
  const UInt_t iy  = 1;
  const UInt_t icosThetaStar  = 2;
  const UInt_t ipTpi  = 3;
  const UInt_t ipTk  = 4;
  const UInt_t icT  = 5;
  const UInt_t idca  = 6;
  const UInt_t id0xd0  = 7;
  const UInt_t ipointing  = 8;
  const UInt_t iphi  = 9;
  const UInt_t izvtx  = 10;
  const UInt_t icent = 11;
  const UInt_t ifake = 12;
  const UInt_t ipointingXY = 13;
  const UInt_t inormDecayLXY = 14;
  const UInt_t imult = 15;
  
  //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
  
  //arrays for the number of bins in each dimension
  Int_t iBin[nvarTot];
  
  //OPTION 1: defining the pt, ptPi, ptK bins by hand...    
  /*
    const Int_t nbinpt_0_6  = 6 ; //bins in pt from 0 to 6 GeV
    const Int_t nbinpt_6_8  = 1 ; //bins in pt from 6 to 8 GeV
    const Int_t nbinpt_8_16  = 2 ; //bins in pt from 8 to 16 GeV
    const Int_t nbinpt_16_24  = 1 ; //bins in pt from 16 to 24 GeV
    const Int_t nbinpTpi_0_6  = 6 ; //bins in ptPi from 0 to 6 GeV
    const Int_t nbinpTpi_6_8  = 1 ; //bins in ptPi from 6 to 8 GeV
    const Int_t nbinpTpi_8_16  = 2 ; //bins in ptPi from 8 to 16 GeV
    const Int_t nbinpTpi_16_24  = 1 ; //bins in ptPi from 16 to 24 GeV
    const Int_t nbinpTk_0_6  = 6 ; //bins in ptK from 0 to 6 GeV
    const Int_t nbinpTk_6_8  = 1 ; //bins in ptK from 6 to 8 GeV
    const Int_t nbinpTk_8_16  = 2 ; //bins in ptK from 8 to 16 GeV
    const Int_t nbinpTk_16_24  = 1 ; //bins in ptK from 16 to 24 GeV
    iBin[ipT]=nbinpt_0_6+nbinpt_6_8+nbinpt_8_16+nbinpt_16_24;
    iBin[ipTpi]=nbinpTpi_0_6+nbinpTpi_6_8+nbinpTpi_8_16+nbinpTpi_16_24;
    iBin[ipTk]=nbinpTk_0_6+nbinpTk_6_8+nbinpTk_8_16+nbinpTk_16_24;
    Double_t *binLimpT=new Double_t[iBin[0]+1];
    Double_t *binLimpTpi=new Double_t[iBin[3]+1];
    Double_t *binLimpTk=new Double_t[iBin[4]+1];
    
    // values for bin lower bounds
    // pt
    for(Int_t i=0; i<=nbinpt_0_6; i++) binLimpT[i]=(Double_t)ptmin_0_6 + (ptmax_0_6-ptmin_0_6)/nbinpt_0_6*(Double_t)i ; 
    if (binLimpT[nbinpt_0_6] != ptmin_6_8)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 1st range - differs from expected!\n");
    }
    for(Int_t i=0; i<=nbinpt_6_8; i++) binLimpT[i+nbinpt_0_6]=(Double_t)ptmin_6_8 + (ptmax_6_8-ptmin_6_8)/nbinpt_6_8*(Double_t)i ; 
    if (binLimpT[nbinpt_0_6+nbinpt_6_8] != ptmin_8_16)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
    }
    for(Int_t i=0; i<=nbinpt_8_16; i++) binLimpT[i+nbinpt_0_6+nbinpt_6_8]=(Double_t)ptmin_8_16 + (ptmax_8_16-ptmin_8_16)/nbinpt_8_16*(Double_t)i ; 
    if (binLimpT[nbinpt_0_6+nbinpt_6_8+nbinpt_8_16] != ptmin_16_24)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
    }
    for(Int_t i=0; i<=nbinpt_16_24; i++) binLimpT[i+nbinpt_0_6+nbinpt_6_8+nbinpt_8_16]=(Double_t)ptmin_16_24 + (ptmax_16_24-ptmin_16_24)/nbinpt_16_24*(Double_t)i ; 
    
    // ptPi
    for(Int_t i=0; i<=nbinpTpi_0_6; i++) binLimpTpi[i]=(Double_t)ptmin_0_6 + (ptmax_0_6-ptmin_0_6)/nbinpTpi_0_6*(Double_t)i ; 
    if (binLimpTpi[nbinpTpi_0_6] != ptmin_6_8)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 1st range - differs from expected!\n");
    }
    for(Int_t i=0; i<=nbinpTpi_6_8; i++) binLimpTpi[i+nbinpTpi_0_6]=(Double_t)ptmin_6_8 + (ptmax_6_8-ptmin_6_8)/nbinpTpi_6_8*(Double_t)i ; 
    if (binLimpTpi[nbinpTpi_0_6+nbinpTpi_6_8] != ptmin_8_16)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
    }
    for(Int_t i=0; i<=nbinpTpi_8_16; i++) binLimpTpi[i+nbinpTpi_0_6+nbinpt_6_8]=(Double_t)ptmin_8_16 + (ptmax_8_16-ptmin_8_16)/nbinpTpi_8_16*(Double_t)i ; 
    if (binLimpTpi[nbinpTpi_0_6+nbinpTpi_6_8+nbinpTpi_8_16] != ptmin_16_24)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
    }
    for(Int_t i=0; i<=nbinpTpi_16_24; i++) binLimpTpi[i+nbinpTpi_0_6+nbinpTpi_6_8+nbinpTpi_8_16]=(Double_t)ptmin_16_24 + (ptmax_16_24-ptmin_16_24)/nbinpTpi_16_24*(Double_t)i ; 
    
    // ptKa
    for(Int_t i=0; i<=nbinpTk_0_6; i++) binLimpTk[i]=(Double_t)ptmin_0_6 + (ptmax_0_6-ptmin_0_6)/nbinpTk_0_6*(Double_t)i ; 
    if (binLimpTk[nbinpTk_0_6] != ptmin_6_8)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 1st range - differs from expected!\n");
    }
    for(Int_t i=0; i<=nbinpTk_6_8; i++) binLimpTk[i+nbinpTk_0_6]=(Double_t)ptmin_6_8 + (ptmax_6_8-ptmin_6_8)/nbinpTk_6_8*(Double_t)i ; 
    if (binLimpTk[nbinpTk_0_6+nbinpTk_6_8] != ptmin_8_16)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
    }
    for(Int_t i=0; i<=nbinpTk_8_16; i++) binLimpTk[i+nbinpTk_0_6+nbinpt_6_8]=(Double_t)ptmin_8_16 + (ptmax_8_16-ptmin_8_16)/nbinpTk_8_16*(Double_t)i ; 
    if (binLimpTk[nbinpTk_0_6+nbinpTk_6_8+nbinpTk_8_16] != ptmin_16_24)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
    }
    for(Int_t i=0; i<=nbinpTk_16_24; i++) binLimpTk[i+nbinpTk_0_6+nbinpTk_6_8+nbinpTk_8_16]=(Double_t)ptmin_16_24 + (ptmax_16_24-ptmin_16_24)/nbinpTk_16_24*(Double_t)i ; 
  */
  
  //OPTION 2: ...or from the cuts file
  
  const Int_t nbinpt = cutsD0toKpi->GetNPtBins(); // bins in pT
  iBin[ipT]=nbinpt;
  iBin[ipTpi]=nbinpt;
  iBin[ipTk]=nbinpt;
  Double_t *binLimpT=new Double_t[iBin[ipT]+1];
  Double_t *binLimpTpi=new Double_t[iBin[ipTpi]+1];
  Double_t *binLimpTk=new Double_t[iBin[ipTk]+1];
  // values for bin lower bounds
  Float_t* floatbinLimpT = cutsD0toKpi->GetPtBinLimits();
  for (Int_t ibin0 = 0 ; ibin0<iBin[ipT]+1; ibin0++){
    binLimpT[ibin0] = (Double_t)floatbinLimpT[ibin0];
    binLimpTpi[ibin0] = (Double_t)floatbinLimpT[ibin0];
    binLimpTk[ibin0] = (Double_t)floatbinLimpT[ibin0];
  }
  for(Int_t i=0; i<=nbinpt; i++) printf("binLimpT[%d]=%f\n",i,binLimpT[i]);  
  
  printf("pT: nbin (from cuts file) = %d\n",nbinpt);

  Double_t *binLimpTFine=new Double_t[400+1];
  if(isFinePtBin) {
    iBin[ipT]=400.;
    for (Int_t ibin0 = 0 ; ibin0<400+1; ibin0++){
      binLimpTFine[ibin0] = 0.1*ibin0;
    }
    printf("pT: nbins fine = 400\n");
  }

  // Fine Ntrk bining setting
  Double_t *binLimmultFine;
  Int_t nbinmultTmp=nbinmult;
  if(isFineNtrkBin){
    Int_t nbinLimmultFine=100;
    if(isPPbData) nbinLimmultFine = 200;
    const UInt_t nbinMultFine = nbinLimmultFine;
    binLimmultFine = new Double_t[nbinMultFine+1];
    for (Int_t ibin0 = 0 ; ibin0<nbinMultFine+1; ibin0++){
      binLimmultFine[ibin0] = ibin0;
    }
    nbinmultTmp=nbinLimmultFine;
  }
  const Int_t nbinmultTot=nbinmultTmp;

  // defining now the binning for the other variables:
  
  iBin[iy]=nbiny;
  iBin[icosThetaStar]=nbincosThetaStar;
  iBin[icT]=nbincT;
  iBin[idca]=nbindca;
  iBin[id0xd0]=nbind0xd0;
  iBin[ipointing]=nbinpointing;
  iBin[iphi]=nbinphi;
  iBin[izvtx]=nbinzvtx;
  iBin[icent]=nbincent;
  iBin[ifake]=nbinfake;
  iBin[ipointingXY]=nbinpointingXY;
  iBin[inormDecayLXY]=nbinnormDecayLXY;
  iBin[imult]=nbinmultTot;
  
  //arrays for lower bounds :
  Double_t *binLimy=new Double_t[iBin[iy]+1];
  Double_t *binLimcosThetaStar=new Double_t[iBin[icosThetaStar]+1];
  Double_t *binLimcT=new Double_t[iBin[icT]+1];
  Double_t *binLimdca=new Double_t[iBin[idca]+1];
  Double_t *binLimd0xd0=new Double_t[iBin[id0xd0]+1];
  Double_t *binLimpointing=new Double_t[iBin[ipointing]+1];
  Double_t *binLimphi=new Double_t[iBin[iphi]+1];
  Double_t *binLimzvtx=new Double_t[iBin[izvtx]+1];
  Double_t *binLimcent=new Double_t[iBin[icent]+1];
  Double_t *binLimfake=new Double_t[iBin[ifake]+1];
  Double_t *binLimpointingXY=new Double_t[iBin[ipointingXY]+1];
  Double_t *binLimnormDecayLXY=new Double_t[iBin[inormDecayLXY]+1];
  Double_t *binLimmult=new Double_t[iBin[imult]+1];


  // y
  for(Int_t i=0; i<=nbiny; i++) binLimy[i]=(Double_t)ymin  + (ymax-ymin)  /nbiny*(Double_t)i ;

  // cosThetaStar
  for(Int_t i=0; i<=nbincosThetaStar; i++) binLimcosThetaStar[i]=(Double_t)cosminTS  + (cosmaxTS-cosminTS)  /nbincosThetaStar*(Double_t)i ;
  
  // cT
  for(Int_t i=0; i<=nbincT; i++) binLimcT[i]=(Double_t)cTmin  + (cTmax-cTmin)  /nbincT*(Double_t)i ;

  // dca
  for(Int_t i=0; i<=nbindca; i++) binLimdca[i]=(Double_t)dcamin  + (dcamax-dcamin)  /nbindca*(Double_t)i ;

  // d0xd0
  for(Int_t i=0; i<=nbind0xd0; i++) binLimd0xd0[i]=(Double_t)d0xd0min  + (d0xd0max-d0xd0min)  /nbind0xd0*(Double_t)i ;

  // cosPointingAngle
  for(Int_t i=0; i<=nbinpointing; i++) binLimpointing[i]=(Double_t)cosmin  + (cosmax-cosmin)  /nbinpointing*(Double_t)i ;

  // Phi
  for(Int_t i=0; i<=nbinphi; i++) binLimphi[i]=(Double_t)phimin  + (phimax-phimin)  /nbinphi*(Double_t)i ;

  // z Primary Vertex
  for(Int_t i=0; i<=nbinzvtx; i++) {
    binLimzvtx[i]=(Double_t)zmin  + (zmax-zmin)  /nbinzvtx*(Double_t)i ;
  }

  // centrality
  for(Int_t i=0; i<=nbincent_0_10; i++) binLimcent[i]=(Double_t)centmin_0_10 + (centmax_0_10-centmin_0_10)/nbincent_0_10*(Double_t)i ; 
  if (binLimcent[nbincent_0_10] != centmin_10_60)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for cent - 1st range - differs from expected!\n");
  }
  for(Int_t i=0; i<=nbincent_10_60; i++) binLimcent[i+nbincent_0_10]=(Double_t)centmin_10_60 + (centmax_10_60-centmin_10_60)/nbincent_10_60*(Double_t)i ;
  if (binLimcent[nbincent_0_10+nbincent_10_60] != centmin_60_100)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for cent - 2st range - differs from expected!\n");
  }
  for(Int_t i=0; i<=nbincent_60_100; i++) binLimcent[i+nbincent_0_10+nbincent_10_60]=(Double_t)centmin_60_100 + (centmax_60_100-centmin_60_100)/nbincent_60_100*(Double_t)i ;

  // fake
  for(Int_t i=0; i<=nbinfake; i++) {
    binLimfake[i]=(Double_t)fakemin  + (fakemax-fakemin)/nbinfake * (Double_t)i;
  }

  // cosPointingAngleXY
  for(Int_t i=0; i<=nbinpointingXY; i++) binLimpointingXY[i]=(Double_t)cosminXY  + (cosmaxXY-cosminXY)  /nbinpointingXY*(Double_t)i ;

  // normDecayLXY
  for(Int_t i=0; i<=nbinnormDecayLXY; i++) binLimnormDecayLXY[i]=(Double_t)normDecLXYmin  + (normDecLXYmax-normDecLXYmin)  /nbinnormDecayLXY*(Double_t)i ;

  // multiplicity
  for(Int_t i=0; i<=nbinmult_0_20; i++) binLimmult[i]=(Double_t)multmin_0_20 + (multmax_0_20-multmin_0_20)/nbinmult_0_20*(Double_t)i ; 
  if (binLimmult[nbinmult_0_20] != multmin_20_50)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for mult - 1st range - differs from expected!\n");
  }
  for(Int_t i=0; i<=nbinmult_20_50; i++) binLimmult[i+nbinmult_0_20]=(Double_t)multmin_20_50 + (multmax_20_50-multmin_20_50)/nbinmult_20_50*(Double_t)i ; 
  if (binLimmult[nbinmult_0_20+nbinmult_20_50] != multmin_50_80)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for mult - 2nd range - differs from expected!\n");
  }
  for(Int_t i=0; i<=nbinmult_50_80; i++) binLimmult[i+nbinmult_0_20+nbinmult_20_50]=(Double_t)multmin_50_80 + (multmax_50_80-multmin_50_80)/nbinmult_50_80*(Double_t)i ; 
  if (binLimmult[nbinmult_0_20+nbinmult_20_50+nbinmult_50_80] != multmin_80_100)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for mult - 2nd range - differs from expected!\n");
  }
  for(Int_t i=0; i<=nbinmult_80_100; i++) binLimmult[i+nbinmult_0_20+nbinmult_20_50+nbinmult_50_80]=(Double_t)multmin_80_100 + (multmax_80_100-multmin_80_100)/nbinmult_80_100*(Double_t)i ; 
  if (binLimmult[nbinmult_0_20+nbinmult_20_50+nbinmult_50_80+nbinmult_80_100] != multmin_100_400)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for mult - 2nd range - differs from expected!\n");
  }

  if(isPPbData){
    for(Int_t i=0; i<=nbinmult_100_400; i++) binLimmult[i+nbinmult_0_20+nbinmult_20_50+nbinmult_50_80+nbinmult_80_100]=(Double_t)multmin_100_400 + (multmax_100_400-multmin_100_400)/nbinmult_100_400*(Double_t)i ; 
  }

  if(multiplicityEstimator==AliCFTaskVertexingHF::kVZERO) {
    Int_t items = nbinmult_0_20+nbinmult_20_50+nbinmult_50_80+nbinmult_80_100;
    if(isPPbData) items = nbinmult_0_20+nbinmult_20_50+nbinmult_50_80+nbinmult_80_100+nbinmult_100_400;
    for(Int_t i=0; i<=items; i++) binLimmult[i]*= 68./12.;
  }

  //one "container" for MC
  TString nameContainer="";
  if(!isKeepDfromB) {
    nameContainer="CFHFccontainer0";
  }
  else  if(isKeepDfromBOnly){
    nameContainer="CFHFccontainer0DfromB";
  }
  else  {
    nameContainer="CFHFccontainer0allD";    
  }
  nameContainer += suffix;
  //Setting up the container grid... 

  AliCFContainer* container;

  if (configuration == AliCFTaskVertexingHF::kSnail){
    container = new AliCFContainer(nameContainer,"container for tracks",nstep,nvarTot,iBin);
    //setting the bin limits
    printf("pt\n");
    if(isFinePtBin) container -> SetBinLimits(ipT,binLimpTFine); 
    else        container -> SetBinLimits(ipT,binLimpT);
    printf("y\n");
    container -> SetBinLimits(iy,binLimy);
    printf("cts\n");
    container -> SetBinLimits(icosThetaStar,binLimcosThetaStar);
    printf("ptPi\n");
    container -> SetBinLimits(ipTpi,binLimpTpi);
    printf("ptK\n");
    container -> SetBinLimits(ipTk,binLimpTk);
    printf("cT\n");
    container -> SetBinLimits(icT,binLimcT);
    printf("dca\n");
    container -> SetBinLimits(idca,binLimdca);
    printf("d0xd0\n");
    container -> SetBinLimits(id0xd0,binLimd0xd0);
    printf("pointing\n");
    container -> SetBinLimits(ipointing,binLimpointing);
    printf("phi\n");
    container -> SetBinLimits(iphi,binLimphi);
    printf("z\n");
    container -> SetBinLimits(izvtx,binLimzvtx);
    printf("cent\n");
    container -> SetBinLimits(icent,binLimcent);
    printf("fake\n");
    container -> SetBinLimits(ifake,binLimfake);
    printf("pointingXY\n");
    container -> SetBinLimits(ipointingXY,binLimpointingXY);
    printf("normDecayLXY\n");
    container -> SetBinLimits(inormDecayLXY,binLimnormDecayLXY);
    printf("multiplicity\n");
    if(isFineNtrkBin) container -> SetBinLimits(imult,binLimmultFine);
    else              container -> SetBinLimits(imult,binLimmult);

    container -> SetVarTitle(ipT,"pt");
    container -> SetVarTitle(iy,"y");
    container -> SetVarTitle(icosThetaStar, "cosThetaStar");
    container -> SetVarTitle(ipTpi, "ptpi");
    container -> SetVarTitle(ipTk, "ptK");
    container -> SetVarTitle(icT, "ct");
    container -> SetVarTitle(idca, "dca");
    container -> SetVarTitle(id0xd0, "d0xd0");
    container -> SetVarTitle(ipointing, "pointing");
    container -> SetVarTitle(iphi, "phi");
    container -> SetVarTitle(izvtx, "zvtx");
    container -> SetVarTitle(icent, "centrality");
    container -> SetVarTitle(ifake, "fake");
    container -> SetVarTitle(ipointingXY, "piointingXY");
    container -> SetVarTitle(inormDecayLXY, "normDecayLXY");
    container -> SetVarTitle(imult, "multiplicity");
  }
  else if (configuration == AliCFTaskVertexingHF::kCheetah){
    //arrays for the number of bins in each dimension
    const Int_t nvar = 8;

    const UInt_t ipTFast = 0;
    const UInt_t iyFast = 1;
    const UInt_t icTFast = 2;
    const UInt_t iphiFast = 3;
    const UInt_t izvtxFast = 4;
    const UInt_t icentFast = 5;
    const UInt_t ifakeFast = 6;
    const UInt_t imultFast = 7;

    Int_t iBinFast[nvar];
    iBinFast[ipTFast] = iBin[ipT];
    iBinFast[iyFast] = iBin[iy];
    iBinFast[icTFast] = iBin[icT];
    iBinFast[iphiFast] = iBin[iphi];
    iBinFast[izvtxFast] = iBin[izvtx];
    iBinFast[icentFast] = iBin[icent];
    iBinFast[ifakeFast] = iBin[ifake];
    iBinFast[imultFast] = iBin[imult];

    container = new AliCFContainer(nameContainer,"container for tracks",nstep,nvar,iBinFast);
    printf("pt\n");
    if(isFinePtBin) container -> SetBinLimits(ipTFast,binLimpTFine); 
    else        container -> SetBinLimits(ipTFast,binLimpT);
    printf("y\n");
    container -> SetBinLimits(iyFast,binLimy);
    printf("ct\n");
    container -> SetBinLimits(icTFast,binLimcT);
    printf("phi\n");
    container -> SetBinLimits(iphiFast,binLimphi);
    printf("zvtx\n");
    container -> SetBinLimits(izvtxFast,binLimzvtx);
    printf("centrality\n");
    container -> SetBinLimits(icentFast,binLimcent);
    printf("fake\n");
    container -> SetBinLimits(ifakeFast,binLimfake);
    printf("multiplicity\n");
    if(isFineNtrkBin) container -> SetBinLimits(imultFast,binLimmultFine);
    else              container -> SetBinLimits(imultFast,binLimmult);

    container -> SetVarTitle(ipTFast,"pt");
    container -> SetVarTitle(iyFast,"y");
    container -> SetVarTitle(icTFast, "ct");
    container -> SetVarTitle(iphiFast, "phi");
    container -> SetVarTitle(izvtxFast, "zvtx");
    container -> SetVarTitle(icentFast, "centrality");
    container -> SetVarTitle(ifakeFast, "fake");
    container -> SetVarTitle(imultFast, "multiplicity");
  }

  container -> SetStepTitle(0, "MCLimAcc");
  container -> SetStepTitle(1, "MC");
        container -> SetStepTitle(2, "MCAcc");
        container -> SetStepTitle(3, "RecoVertex");
        container -> SetStepTitle(4, "RecoRefit");
        container -> SetStepTitle(5, "Reco");
        container -> SetStepTitle(6, "RecoAcc");
  container -> SetStepTitle(7, "RecoITSCluster");
  container -> SetStepTitle(8, "RecoCuts");
  container -> SetStepTitle(9, "RecoPID");

  //return container;

  //CREATE THE  CUTS -----------------------------------------------
  
  // Gen-Level kinematic cuts
  AliCFTrackKineCuts *mcKineCuts = new AliCFTrackKineCuts("mcKineCuts","MC-level kinematic cuts");
  
  //Particle-Level cuts:  
  AliCFParticleGenCuts* mcGenCuts = new AliCFParticleGenCuts("mcGenCuts","MC particle generation cuts");
  Bool_t useAbsolute = kTRUE;
  if (isSign != 2){
    useAbsolute = kFALSE;
  }
  mcGenCuts->SetRequirePdgCode(pdgCode, useAbsolute);  // kTRUE set in order to include D0_bar
  mcGenCuts->SetAODMC(1); //special flag for reading MC in AOD tree (important)
  
  // Acceptance cuts:
  AliCFAcceptanceCuts* accCuts = new AliCFAcceptanceCuts("accCuts", "Acceptance cuts");
  AliCFTrackKineCuts *kineAccCuts = new AliCFTrackKineCuts("kineAccCuts","Kine-Acceptance cuts");
  kineAccCuts->SetPtRange(ptmin,ptmax);
  kineAccCuts->SetEtaRange(etamin,etamax);

  // Rec-Level kinematic cuts
  AliCFTrackKineCuts *recKineCuts = new AliCFTrackKineCuts("recKineCuts","rec-level kine cuts");
  
  AliCFTrackQualityCuts *recQualityCuts = new AliCFTrackQualityCuts("recQualityCuts","rec-level quality cuts");
  
  AliCFTrackIsPrimaryCuts *recIsPrimaryCuts = new AliCFTrackIsPrimaryCuts("recIsPrimaryCuts","rec-level isPrimary cuts");
  
  printf("CREATE MC KINE CUTS\n");
  TObjArray* mcList = new TObjArray(0) ;
  mcList->AddLast(mcKineCuts);
  mcList->AddLast(mcGenCuts);
  
  printf("CREATE ACCEPTANCE CUTS\n");
  TObjArray* accList = new TObjArray(0) ;
  accList->AddLast(kineAccCuts);

  printf("CREATE RECONSTRUCTION CUTS\n");
  TObjArray* recList = new TObjArray(0) ;   // not used!! 
  recList->AddLast(recKineCuts);
  recList->AddLast(recQualityCuts);
  recList->AddLast(recIsPrimaryCuts);
  
  TObjArray* emptyList = new TObjArray(0);

  //CREATE THE INTERFACE TO CORRECTION FRAMEWORK USED IN THE TASK
  printf("CREATE INTERFACE AND CUTS\n");
  AliCFManager* man = new AliCFManager() ;
  man->SetParticleContainer(container);
  man->SetParticleCutsList(0 , mcList); // MC, Limited Acceptance
  man->SetParticleCutsList(1 , mcList); // MC
  man->SetParticleCutsList(2 , accList); // Acceptance 
  man->SetParticleCutsList(3 , emptyList); // Vertex 
  man->SetParticleCutsList(4 , emptyList); // Refit 
  man->SetParticleCutsList(5 , emptyList); // AOD
  man->SetParticleCutsList(6 , emptyList); // AOD in Acceptance
  man->SetParticleCutsList(7 , emptyList); // AOD with required n. of ITS clusters
  man->SetParticleCutsList(8 , emptyList); // AOD Reco (PPR cuts implemented in Task)
  man->SetParticleCutsList(9 , emptyList); // AOD Reco PID
  
  // Get the pointer to the existing analysis manager via the static access method.
  //==============================================================================
  AliAnalysisManager *mgr = AliAnalysisManager::GetAnalysisManager();
  if (!mgr) {
    ::Error("AddTaskCompareHF", "No analysis manager to connect to.");
    return NULL;
  }   
  //CREATE THE TASK
  printf("CREATE TASK\n");

  // create the task
  AliCFTaskVertexingHF *task = new AliCFTaskVertexingHF("AliCFTaskVertexingHF",cutsD0toKpi);
  task->SetConfiguration(configuration);
  task->SetFillFromGenerated(kFALSE);
  task->SetCFManager(man); //here is set the CF manager
  task->SetDecayChannel(2);
  task->SetUseFlatPtWeight(useFlatPtWeight);
  task->SetUseWeight(useWeight);
  task->SetUseZWeight(useZWeight);
  task->SetSign(isSign);
  task->SetCentralitySelection(kFALSE);
  task->SetFakeSelection(0);
  task->SetRejectCandidateIfNotFromQuark(kTRUE); // put to false if you want to keep HIJING D0!!
  task->SetUseMCVertex(kFALSE); // put to true if you want to do studies on pp
  task->SetMultiplicityEstimator(multiplicityEstimator);
  task->SetIsPPData(isPPData);

  if (isKeepDfromB && !isKeepDfromBOnly) task->SetDselection(2);
  if (isKeepDfromB && isKeepDfromBOnly) task->SetDselection(1); 

  TF1* funcWeight = 0x0;
  if (task->GetUseWeight()) {
    funcWeight = (TF1*)fileCuts->Get("funcWeight");
    if (funcWeight == 0x0){
      Printf("FONLL Weights will be used");
    }
    else {
      task->SetWeightFunction(funcWeight);
      Printf("User-defined Weights will be used.");
    }
  }

  if(useNchWeight || useNtrkWeight){
    TH1F *hNchPrimaries;
    TH1F *hNchMeasured;
    if(isPPbData) hNchPrimaries = (TH1F*)fileCuts->Get("hNtrUnCorrEvWithCandWeight");
    else hNchPrimaries = (TH1F*)fileCuts->Get("hGenPrimaryParticlesInelGt0");
    hNchMeasured = (TH1F*)fileCuts->Get("hNchMeasured");
    if(hNchPrimaries) {
      task->SetUseNchWeight(kTRUE);
      task->SetMCNchHisto(hNchPrimaries);
      if(isPPbData) task->SetUseNchTrackletsWeight();
    } else {
      AliFatal("Histogram for multiplicity weights not found");
      return 0x0;
    }
    if(hNchMeasured) task->SetMeasuredNchHisto(hNchMeasured);
    if(useNtrkWeight) task->SetUseNchTrackletsWeight();
  }
  
  if(isPPbData) { 
    task->SetIsPPbData(kTRUE); 
  }
   
  if(estimatorFilename.EqualTo("") ) {
    printf("Estimator file not provided, multiplicity corrected histograms will not be filled\n");
    task->SetUseZvtxCorrectedNtrkEstimator(kFALSE);
  } else{

    TFile* fileEstimator=TFile::Open(estimatorFilename.Data());
    if(!fileEstimator)  {
      AliFatal("File with multiplicity estimator not found"); 
      return;
    }

    task->SetUseZvtxCorrectedNtrkEstimator(kTRUE);
    task->SetReferenceMultiplcity(refMult);

    if (isPPbData) {     //Use LHC13 periods for mult correction if pPb data
            const Char_t* periodNames[2] = {"LHC13b", "LHC13c"};
            TProfile* multEstimatorAvg[2];
            for(Int_t ip=0; ip<2; ip++) {
        multEstimatorAvg[ip] = (TProfile*)(fileEstimator->Get(Form("SPDmult10_%s",periodNames[ip]))->Clone(Form("SPDmult10_%s_clone",periodNames[ip])));
        if (!multEstimatorAvg[ip]) {
    AliFatal(Form("Multiplicity estimator for %s not found! Please check your estimator file",periodNames[ip]));
    return;
        }
            }
            task->SetMultiplVsZProfileLHC13b(multEstimatorAvg[0]);
            task->SetMultiplVsZProfileLHC13c(multEstimatorAvg[1]);
    }
    else {
      const Char_t* periodNames[4] = {"LHC10b", "LHC10c", "LHC10d", "LHC10e"};   //else, assume pp (LHC10)
            TProfile* multEstimatorAvg[4];
            for(Int_t ip=0; ip<4; ip++) {
        multEstimatorAvg[ip] = (TProfile*)(fileEstimator->Get(Form("SPDmult10_%s",periodNames[ip]))->Clone(Form("SPDmult10_%s_clone",periodNames[ip])));
        if (!multEstimatorAvg[ip]) {
    AliFatal(Form("Multiplicity estimator for %s not found! Please check your estimator file",periodNames[ip]));
    return;
        }
            }
            task->SetMultiplVsZProfileLHC10b(multEstimatorAvg[0]);
            task->SetMultiplVsZProfileLHC10c(multEstimatorAvg[1]);
            task->SetMultiplVsZProfileLHC10d(multEstimatorAvg[2]);
            task->SetMultiplVsZProfileLHC10e(multEstimatorAvg[3]);
    }

  }
  

  Printf("***************** CONTAINER SETTINGS *****************"); 
  Printf("decay channel = %d",(Int_t)task->GetDecayChannel());
  Printf("FillFromGenerated = %d",(Int_t)task->GetFillFromGenerated());
  Printf("Dselection = %d",(Int_t)task->GetDselection());
  Printf("UseWeight = %d",(Int_t)task->GetUseWeight());
  if (task->GetUseWeight()) {
    if(funcWeight) Printf("User-defined Weight function");
    else Printf("FONLL will be used for the weights");
  }

  Printf("Use Nch weight = %d",(Int_t)task->GetUseNchWeight());
  Printf("Sign = %d",(Int_t)task->GetSign());
  Printf("Centrality selection = %d",(Int_t)task->GetCentralitySelection());
  Printf("Fake selection = %d",(Int_t)task->GetFakeSelection());
  Printf("RejectCandidateIfNotFromQuark selection = %d",(Int_t)task->GetRejectCandidateIfNotFromQuark());
  Printf("UseMCVertex selection = %d",(Int_t)task->GetUseMCVertex());
  Printf("***************END CONTAINER SETTINGS *****************\n");

        //-----------------------------------------------------------//
        //   create correlation matrix for unfolding - only eta-pt   //
        //-----------------------------------------------------------//

        Bool_t AcceptanceUnf = kTRUE; // unfold at acceptance level, otherwise PPR

        Int_t thnDim[4];
        
        //first half  : reconstructed 
        //second half : MC

        thnDim[0] = iBin[0];
        thnDim[2] = iBin[0];
        thnDim[1] = iBin[1];
        thnDim[3] = iBin[1];

  TString nameCorr="";
  if(!isKeepDfromB) {
    nameCorr="CFHFcorr0";
  }
  else  if(isKeepDfromBOnly){
    nameCorr= "CFHFcorr0KeepDfromBOnly";
  }
  else  {
    nameCorr="CFHFcorr0allD";

  }
  nameCorr += suffix;

        THnSparseD* correlation = new THnSparseD(nameCorr,"THnSparse with correlations",4,thnDim);
        Double_t** binEdges = new Double_t[2];

        // set bin limits

        binEdges[0]= binLimpT;
  if(isFinePtBin) binEdges[0] = binLimpTFine;
        binEdges[1]= binLimy;

        correlation->SetBinEdges(0,binEdges[0]);
        correlation->SetBinEdges(2,binEdges[0]);

        correlation->SetBinEdges(1,binEdges[1]);
        correlation->SetBinEdges(3,binEdges[1]);

        correlation->Sumw2();
  
        // correlation matrix ready
        //------------------------------------------------//

        task->SetCorrelationMatrix(correlation); // correlation matrix for unfolding
  
  // Create and connect containers for input/output
  
  // ------ input data ------
  AliAnalysisDataContainer *cinput0  = mgr->GetCommonInputContainer();
  
  // ----- output data -----
  
  TString outputfile = AliAnalysisManager::GetCommonFileName();
  TString output1name="", output2name="", output3name="",output4name="", output5name="";
  output2name=nameContainer;
  output3name=nameCorr;
  output4name= "Cuts";
  output5name= "coutProf";
  if(!isKeepDfromB) {
    outputfile += ":PWG3_D2H_CFtaskD0toKpi";
    output1name="CFHFchist0";
    output3name+="_cOnly";
    output4name+="_cOnly";
    output5name+="_cOnly";
  }
  else  if(isKeepDfromBOnly){
    outputfile += ":PWG3_D2H_CFtaskD0toKpiKeepDfromBOnly";
    output1name="CFHFchist0DfromB";
    output3name+="_bOnly";
    output4name+="_bOnly";
    output5name+="_bOnly";
  }
  else{
    outputfile += ":PWG3_D2H_CFtaskD0toKpiKeepDfromB";
    output1name="CFHFchist0allD";
    output3name+="_all";
    output4name+="_all";
    output5name+="_all";
  }

  outputfile += suffix;
  output1name += suffix;
  output4name += suffix;
  output5name += suffix;

  //now comes user's output objects :
  // output TH1I for event counting
  AliAnalysisDataContainer *coutput1 = mgr->CreateContainer(output1name, TH1I::Class(),AliAnalysisManager::kOutputContainer,outputfile.Data());
  // output Correction Framework Container (for acceptance & efficiency calculations)
  AliAnalysisDataContainer *coutput2 = mgr->CreateContainer(output2name, AliCFContainer::Class(),AliAnalysisManager::kOutputContainer,outputfile.Data());
  // Unfolding - correlation matrix
        AliAnalysisDataContainer *coutput3 = mgr->CreateContainer(output3name, THnSparseD::Class(),AliAnalysisManager::kOutputContainer,outputfile.Data());
  // cuts
  AliAnalysisDataContainer *coutput4 = mgr->CreateContainer(output4name, AliRDHFCuts::Class(),AliAnalysisManager::kOutputContainer, outputfile.Data());
  // estimators list
  AliAnalysisDataContainer *coutput5 = mgr->CreateContainer(output5name, TList::Class(),AliAnalysisManager::kOutputContainer, outputfile.Data());


  mgr->AddTask(task);
  
  mgr->ConnectInput(task,0,mgr->GetCommonInputContainer());
  mgr->ConnectOutput(task,1,coutput1);
  mgr->ConnectOutput(task,2,coutput2);
        mgr->ConnectOutput(task,3,coutput3);
  mgr->ConnectOutput(task,4,coutput4);
  mgr->ConnectOutput(task,5,coutput5);

  return task;
  
}