AddTaskCFVertexingHF3ProngDs.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 cosmin = -0.7;
const Double_t cosmax =  1.05;
const Double_t cTmin = 0;  // micron
const Double_t cTmax = 500;  // 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 zvtxmin = -15;
const Double_t zvtxmax = 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 = 0.90;
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_102 = 50;
const Float_t multmax_50_102 = 102;


//----------------------------------------------------

AliCFTaskVertexingHF *AddTaskCFVertexingHF3ProngDs(TString suffixName="", Int_t decayOption=AliCFVertexingHF3Prong::kCountResonant, const char* cutFile = "./DstoKKpiCuts.root", Int_t configuration = AliCFTaskVertexingHF::kSnail, Bool_t isKeepDfromB=kFALSE, Bool_t isKeepDfromBOnly=kFALSE, Int_t pdgCode = 431, Char_t isSign = 2)
//AliCFContainer *AddTaskCFVertexingHF3ProngDs(const char* cutFile = "./DstoKKpiCuts.root", Int_t configuration = AliCFTaskVertexingHF::kSnail, Bool_t isKeepDfromB=kFALSE, Bool_t isKeepDfromBOnly=kFALSE, Int_t pdgCode = 431, Char_t isSign = 2)
{
  printf("Addig 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 --> D+s only
  // isSign = 1 --> D-s only
  // isSign = 2 --> D+s + D-s
  
  TString expected;
  if (isSign == 0 && pdgCode < 0){
    AliError(Form("Error setting PDG code (%d) and sign (0 --> particle (%d) only): they are not compatible, returning",pdgCode));
    return 0x0;
  }
  else if (isSign == 1 && pdgCode > 0){
    AliError(Form("Error setting PDG code (%d) and sign (1 --> antiparticle (%d) only): they are not compatible, returning",pdgCode));
    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;
  }
  AliRDHFCutsDstoKKpi *cutsDstoKKpi = (AliRDHFCutsDstoKKpi*)fileCuts->Get("AnalysisCuts");
  
  // 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_4;
    Double_t ptmax_0_4;
    Double_t ptmin_4_8;
    Double_t ptmax_4_8;
    Double_t ptmin_8_10;
    Double_t ptmax_8_10;
    
    if(!isKeepDfromB){
    ptmin_0_4 =  0.0 ;
    ptmax_0_4 =  4.0 ;
    ptmin_4_8 =  4.0 ;
    ptmax_4_8 =  8.0 ;
    ptmin_8_10 =  8.0 ;
    ptmax_8_10 =  10.0 ;
    } else{
    ptmin_0_4 =  0.0 ;
    ptmax_0_4 =  3.0 ;
    ptmin_4_8 =  3.0 ;
    ptmax_4_8 =  5.0 ;
    ptmin_8_10 =  5.0 ;
    ptmax_8_10 =  10.0 ;
    }
  */

  //CONTAINER DEFINITION
  Info("AliCFTaskVertexingHF","SETUP CONTAINER");

  const Double_t phimax = 2*TMath::Pi();

  //Setting up the container grid... 
  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 Int_t nbinpt_0_4  = 8 ; //bins in pt from 0 to 4 GeV
//  const Int_t nbinpt_4_8  = 4 ; //bins in pt from 4 to 8 GeV
//  const Int_t nbinpt_8_10  = 1 ; //bins in pt from 8 to 10 GeV

/*
  Int_t nbinpt_0_4;
  Int_t nbinpt_4_8;
  Int_t nbinpt_8_10;
  if (!isKeepDfromB){
    nbinpt_0_4  = 8 ; //bins in pt from 0 to 4 GeV
    nbinpt_4_8  = 4 ; //bins in pt from 4 to 8 GeV
    nbinpt_8_10  = 1 ; //bins in pt from 8 to 10 GeV
  }else{
    nbinpt_0_4  = 3 ; //bins in pt from 0 to 3 GeV
    nbinpt_4_8  = 1 ; //bins in pt from 3 to 5 GeV
    nbinpt_8_10  = 1 ; //bins in pt from 5 to 10 GeV
  }
*/
  const Int_t nbinpt = cutsDstoKKpi->GetNPtBins(); // bins in pT
  printf("pT: nbin (from cuts file) = %d\n",nbinpt);
  const Int_t nbiny  = 24 ; //bins in y
  const Int_t nbinphi  = 18 ; //bins in phi
  const Int_t nbincT  = 2 ; //bins in cT 
  const Int_t nbinpointing  = 350 ; //bins in cosPointingAngle  
  const Int_t nbinpT1_0_4  = 8 ; //bins in pt1 from 0 to 4 GeV
  const Int_t nbinpT1_4_8  = 4 ; //bins in pt1 from 4 to 8 GeV
  const Int_t nbinpT1_8_10  = 1 ; //bins in pt1 from 8 to 10 GeV
  const Int_t nbinpT2_0_4  = 8 ; //bins in pt2 from 0 to 4 GeV
  const Int_t nbinpT2_4_8  = 4 ; //bins in pt2 from 4 to 8 GeV
  const Int_t nbinpT2_8_10  = 1 ; //bins in pt2 from 8 to 10 GeV
  const Int_t nbinpT3_0_4  = 8 ; //bins in pt3 from 0 to 4 GeV
  const Int_t nbinpT3_4_8  = 4 ; //bins in pt3 from 4 to 8 GeV
  const Int_t nbinpT3_8_10  = 1 ; //bins in pt3 from 8 to 10 GeV
  const Int_t nbinzvtx  = 30 ; //bins in z vertex
  const Int_t nbincent = 18;  //bins in centrality
  const Int_t nbincent_0_10 = 4;  //bins in centrality between 0 and 10
  const Int_t nbincent_10_60 = 10;  //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 = 48;  //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_102 = 13; //bins in multiplicity between 50 and 102
  
  //the sensitive variables, their indices
  const UInt_t ipT = 0;
  const UInt_t iy  = 1;
  const UInt_t iphi  = 2;
  const UInt_t icT  = 3;
  const UInt_t ipointing  = 4;
  const UInt_t ipT1  = 5;
  const UInt_t ipT2  = 6;
  const UInt_t ipT3  = 7;
  const UInt_t izvtx  = 8;
  const UInt_t icent = 9;
  const UInt_t ifake = 10;
  const UInt_t ipointingXY = 11;
  const UInt_t inormDecayLXY = 12;
  const UInt_t imult = 13;

  const Int_t nvarTot   = 14 ; 

  //arrays for the number of bins in each dimension
  Int_t iBin[nvarTot];
  //iBin[ipT]=nbinpt_0_4+nbinpt_4_8+nbinpt_8_10;
  iBin[ipT]=nbinpt;
  iBin[iy]=nbiny;
  iBin[iphi]=nbinphi;
  //  iBin[icT]=nbincT_0_4+nbincT_4_8+nbincT_8_10;
  //iBin[4]=nbinpointing_0_4+nbinpointing_4_8+nbinpointing_8_10;
  iBin[icT]=nbincT;
  iBin[ipointing]=nbinpointing;
  iBin[ipT1]=nbinpt;
  iBin[ipT2]=nbinpt;
  iBin[ipT3]=nbinpt;
  iBin[izvtx]=nbinzvtx;
  iBin[icent]=nbincent;
  iBin[ifake]=nbinfake;
  iBin[ipointingXY]=nbinpointingXY;
  iBin[inormDecayLXY]=nbinnormDecayLXY;
  iBin[imult]=nbinmult;
  
  //arrays for lower bounds :
  Double_t *binLimpT=new Double_t[iBin[ipT]+1];
  Double_t *binLimy=new Double_t[iBin[iy]+1];
  Double_t *binLimphi=new Double_t[iBin[iphi]+1];
  Double_t *binLimcT=new Double_t[iBin[icT]+1];
  Double_t *binLimpointing=new Double_t[iBin[ipointing]+1];
  Double_t *binLimpT1=new Double_t[iBin[ipT1]+1];
  Double_t *binLimpT2=new Double_t[iBin[ipT2]+1];
  Double_t *binLimpT3=new Double_t[iBin[ipT3]+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];
  
  // checking limits
  /*
    if (ptmax_0_4 != ptmin_4_8) {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","max lim 1st range != min lim 2nd range, please check!");
    }
    if (ptmax_4_8 != ptmin_8_10) {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","max lim 2nd range != min lim 3rd range, please check!");
    }
  */
  // values for bin lower bounds
  // pt
  Float_t* floatbinLimpT = cutsDstoKKpi->GetPtBinLimits();
  for (Int_t ibinpT = 0 ; ibinpT<iBin[ipT]+1; ibinpT++){
    binLimpT[ibinpT] = (Double_t)floatbinLimpT[ibinpT];
    binLimpT1[ibinpT] = (Double_t)floatbinLimpT[ibinpT];
    binLimpT2[ibinpT] = (Double_t)floatbinLimpT[ibinpT];
    binLimpT3[ibinpT] = (Double_t)floatbinLimpT[ibinpT];
  }
  for(Int_t i=0; i<=nbinpt; i++) printf("binLimpT[%d]=%f\n",i,binLimpT[i]);  
  
  /*
    for(Int_t i=0; i<=nbinpt_0_4; i++) binLimpT[i]=(Double_t)ptmin_0_4 + (ptmax_0_4-ptmin_0_4)/nbinpt_0_4*(Double_t)i ; 
    if (binLimpT[nbinpt_0_4] != ptmin_4_8)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 1st range - differs from expected!\n");
    }
    for(Int_t i=0; i<=nbinpt_4_8; i++) binLimpT[i+nbinpt_0_4]=(Double_t)ptmin_4_8 + (ptmax_4_8-ptmin_4_8)/nbinpt_4_8*(Double_t)i ; 
    if (binLimpT[nbinpt_0_4+nbinpt_4_8] != ptmin_8_10)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for pt - 2nd range - differs from expected!\n");
    }
    for(Int_t i=0; i<=nbinpt_8_10; i++) binLimpT[i+nbinpt_0_4+nbinpt_4_8]=(Double_t)ptmin_8_10 + (ptmax_8_10-ptmin_8_10)/nbinpt_8_10*(Double_t)i ; 
  */
  
  // y
  for(Int_t i=0; i<=nbiny; i++) binLimy[i]=(Double_t)ymin  + (ymax-ymin)  /nbiny*(Double_t)i ;
  
  // Phi
  for(Int_t i=0; i<=nbinphi; i++) binLimphi[i]=(Double_t)phimin  + (phimax-phimin)  /nbinphi*(Double_t)i ;
  
  // cT
  for(Int_t i=0; i<=nbincT; i++) binLimcT[i]=(Double_t)cTmin  + (cTmax-cTmin)  /nbincT*(Double_t)i ;
  
  // cosPointingAngle
  for(Int_t i=0; i<=nbinpointing; i++) binLimpointing[i]=(Double_t)cosmin  + (cosmax-cosmin)  /nbinpointing*(Double_t)i ;

  /*
  // ptPi
  for(Int_t i=0; i<=nbincT_0_4; i++) binLimcT[i]=(Double_t)ptmin_0_4 + (ptmax_0_4-ptmin_0_4)/nbincT_0_4*(Double_t)i ; 
  if (binLimcT[nbincT_0_4] != ptmin_4_8)  {
  Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for ptPi - 1st range - differs from expected!");
  }
  for(Int_t i=0; i<=nbincT_4_8; i++) binLimcT[i+nbincT_0_4]=(Double_t)ptmin_4_8 + (ptmax_4_8-ptmin_4_8)/nbincT_4_8*(Double_t)i ; 
  if (binLimcT[nbincT_0_4+nbincT_4_8] != ptmin_8_10)  {
  Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for ptPi - 2nd range - differs from expected!\n");
  }
  for(Int_t i=0; i<=nbincT_8_10; i++) binLimcT[i+nbincT_0_4+nbincT_4_8]=(Double_t)ptmin_8_10 + (ptmax_8_10-ptmin_8_10)/nbincT_8_10*(Double_t)i ; 
  
  // ptKa
  for(Int_t i=0; i<=nbinpointing_0_4; i++) binLimpointing[i]=(Double_t)ptmin_0_4 + (ptmax_0_4-ptmin_0_4)/nbinpointing_0_4*(Double_t)i ; 
  if (binLimpointing[nbinpointing_0_4] != ptmin_4_8)  {
  Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for ptKa - 1st range - differs from expected!");
  }
  for(Int_t i=0; i<=nbinpointing_4_8; i++) binLimpointing[i+nbinpointing_0_4]=(Double_t)ptmin_4_8 + (ptmax_4_8-ptmin_4_8)/nbinpointing_4_8*(Double_t)i ; 
  if (binLimpointing[nbinpointing_0_4+nbinpointing_4_8] != ptmin_8_10)  {
  Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for ptKa - 2nd range - differs from expected!\n");
  }
  for(Int_t i=0; i<=nbinpointing_8_10; i++) binLimpointing[i+nbinpointing_0_4+nbinpointing_4_8]=(Double_t)ptmin_8_10 + (ptmax_8_10-ptmin_8_10)/nbinpointing_8_10*(Double_t)i ; 
  */
  
  // z Primary Vertex
  for(Int_t i=0; i<=nbinzvtx; i++) {
    binLimzvtx[i]=(Double_t)zvtxmin  + (zvtxmax-zvtxmin)  /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_102)  {
    Error("AliCFHeavyFlavourTaskMultiVarMultiStep","Calculated bin lim for mult - 2nd range - differs from expected!\n");
  }
  for(Int_t i=0; i<=nbinmult_50_102; i++) binLimmult[i+nbinmult_0_20+nbinmult_20_50]=(Double_t)multmin_50_102 + (multmax_50_102-multmin_50_102)/nbinmult_50_102*(Double_t)i ; 

  TString suffixDecayType="";
  if(decayOption==AliCFVertexingHF3Prong::kCountAllDsKKpi) suffixDecayType="_All";
  else if(decayOption==AliCFVertexingHF3Prong::kCountPhipi) suffixDecayType="_Phi";
  else if(decayOption==AliCFVertexingHF3Prong::kCountK0stK) suffixDecayType="_K0star";
  else if(decayOption==AliCFVertexingHF3Prong::kCountResonant) suffixDecayType="_Reson";
  else if(decayOption==AliCFVertexingHF3Prong::kCountNonResonant) suffixDecayType="_NonReson";

  //one "container" for MC
  TString nameContainer="";
  if(!isKeepDfromB) {
    nameContainer="CFHFccontainer0_3ProngDstoKKpi_CommonFramework";
  }
  else  if(isKeepDfromBOnly){
    nameContainer="CFHFccontainer0DfromB_3ProngDstoKKpi_CommonFramework";
  }
  else  {
    nameContainer="CFHFccontainer0allD_3ProngDstoKKpi_CommonFramework";          
  }
  nameContainer+=suffixDecayType.Data();
  nameContainer+=suffixName.Data();
  
  AliCFContainer* container;
  if (configuration == AliCFTaskVertexingHF::kSnail){
    container = new AliCFContainer(nameContainer,"container for tracks",nstep,nvarTot,iBin);
    //setting the bin limits
    printf("pt\n");
    container -> SetBinLimits(ipT,binLimpT);
    printf("y\n");
    container -> SetBinLimits(iy,binLimy);
    printf("Phi\n");
    container -> SetBinLimits(iphi,binLimphi);
    printf("cT\n");
    container -> SetBinLimits(icT,binLimcT);
    printf("pointing angle\n");
    container -> SetBinLimits(ipointing,binLimpointing);
    printf("pt1\n");
    container -> SetBinLimits(ipT1,binLimpT1);
    printf("pt2\n");
    container -> SetBinLimits(ipT2,binLimpT2);
    printf("pt3\n");
    container -> SetBinLimits(ipT3,binLimpT3);
    printf("zvtx \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");
    container -> SetBinLimits(imult,binLimmult);
    
    container -> SetVarTitle(ipT,"pt");
    container -> SetVarTitle(iy,"y");
    container -> SetVarTitle(iphi, "phi");
    container -> SetVarTitle(icT, "ct");
    container -> SetVarTitle(ipointing, "pointing");        
    container -> SetVarTitle(ipT1, "pt1");
    container -> SetVarTitle(ipT2, "pt2");
    container -> SetVarTitle(ipT3, "pt3");
    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");
    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");
    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");
  }

  //return container;

  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");


  //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 antiparticle
  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",cutsDstoKKpi);
  task->SetConfiguration(configuration);
  task->SetFillFromGenerated(kFALSE);
  task->SetDecayChannel(33);
  if(decayOption==AliCFVertexingHF3Prong::kCountAllDsKKpi) task->SetCountAllDs();
  else if(decayOption==AliCFVertexingHF3Prong::kCountPhipi) task->SetCountDsViaPhi();
  else if(decayOption==AliCFVertexingHF3Prong::kCountK0stK)  task->SetCountDsViaK0star();
  else if(decayOption==AliCFVertexingHF3Prong::kCountResonant) task->SetCountResonantDs();
  else if(decayOption==AliCFVertexingHF3Prong::kCountNonResonant) task->SetCountNonResonantDs();
  task->SetUseWeight(kFALSE);
  task->SetCFManager(man); //here is set the CF manager
  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
  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. The function being:");
      task->GetWeightFunction()->Print();
    }
  }

  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()) {
    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. The function being:");
      task->GetWeightFunction()->Print();
    }
  }
  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[ipT];
        thnDim[2] = iBin[ipT];
        thnDim[1] = iBin[iy];
        thnDim[3] = iBin[iy];

  TString nameCorr="";
  if(!isKeepDfromB) {
    nameCorr="CFHFcorr0_3ProngDstoKKpi_CommonFramework";
  }
  else  if(isKeepDfromBOnly){
    nameCorr= "CFHFcorr0KeepDfromBOnly_3ProngDstoKKpi_CommonFramework";
  }
  else  {
    nameCorr="CFHFcorr0allD_3ProngDstoKKpi_CommonFramework";    
  }
  nameCorr+=suffixDecayType.Data();
  nameCorr+=suffixName.Data();

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

        // set bin limits

        binEdges[0]= binLimpT;
        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;
  output5name= "coutProfDs";
  if(!isKeepDfromB) {
    outputfile += ":PWG3_D2H_CFtaskDstoKKpi_CommonFramework";
    output1name="CFHFchist0_3ProngDstoKKpi_CommonFramework";
    output3name+="_cOnly";
    output4name= "CutsDdirect_3ProngDs_CommonFramework";
    output5name+="_cOnly";
  }
  else  if(isKeepDfromBOnly){
    outputfile += ":PWG3_D2H_CFtaskDstoKKpiKeepDfromBOnly_CommonFramework";
    output1name="CFHFchist0DfromB_3ProngDstoKKpi_CommonFramework";
    output3name+="_bOnly";
    output4name= "CutsDfromB_3ProngDs_CommonFramework";
    output5name+="_bOnly";
  }
  else{
    outputfile += ":PWG3_D2H_CFtaskDstoKKpiKeepDfromB_CommonFramework";
    output1name="CFHFchist0allD_3ProngDstoKKpi_CommonFramework";
    output3name+="_all";
    output4name= "CutsallD_3ProngDs_CommonFramework";
    output5name+="_all";
  }

  outputfile += suffixDecayType.Data();
  output1name+= suffixDecayType.Data();
  output4name+= suffixDecayType.Data();
  output5name+= suffixDecayType.Data();
  
  outputfile += suffixName.Data();
  output1name+= suffixName.Data();
  output4name+= suffixName.Data();
  output5name+= suffixName.Data();

  //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());
  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;
}