]> git.uio.no Git - u/mrichter/AliRoot.git/blobdiff - PWGCF/Correlations/DPhi/TriggerPID/AliTwoParticlePIDCorr.cxx
Merge branch 'feature-movesplit'
[u/mrichter/AliRoot.git] / PWGCF / Correlations / DPhi / TriggerPID / AliTwoParticlePIDCorr.cxx
index 0ee3f40a0d0941c2e04da7384d66bcbcec7c2ed8..61e29bf87920b7a2a3e22b86fa4b3d3bb6b2fd2a 100644 (file)
 #include "TList.h"
 #include "TFile.h"
 #include "TGrid.h"
-
+#include "TExMap.h"
 #include "AliCentrality.h"
 #include "Riostream.h"
 
+#include "AliAnalysisDataSlot.h"
+ #include "AliAnalysisDataContainer.h"
+
 #include "AliTHn.h"    
 #include "AliCFContainer.h"
 #include "THn.h"
 #include "THnSparse.h"
-
+#include "TBits.h"
 #include <TSpline.h>
 #include <AliPID.h>
 #include "AliESDpid.h"
@@ -42,7 +45,6 @@
 #include <AliPIDResponse.h>
 #include "AliPIDCombined.h"   
 
-#include <AliAnalysisManager.h>
 #include <AliInputEventHandler.h>
 #include "AliAODInputHandler.h"
 
@@ -54,6 +56,8 @@
 #include "AliAODEvent.h"
 #include "AliAODTrack.h"
 #include "AliVTrack.h"
+#include "AliAODv0.h"
+#include "AliAODcascade.h"
 
 #include "THnSparse.h"
 
@@ -91,17 +95,24 @@ AliTwoParticlePIDCorr::AliTwoParticlePIDCorr() // All data members should be ini
    fOutputList(0),
   fList(0),
   fCentralityMethod("V0A"),
+  fPPVsMultUtils(kFALSE),
   fSampleType("pPb"),
  fRequestEventPlane(kFALSE),
+ fRequestEventPlanemixing(kFALSE),
   fnTracksVertex(1),  // QA tracks pointing to principal vertex (= 3 default)
   trkVtx(0),
   zvtx(0),
   fFilterBit(768),
   fTrackStatus(0),
   fSharedClusterCut(-1),
+ fSharedTPCmapCut(-1),
+ fSharedfraction_Pair_cut(-1),
   fVertextype(1),
  skipParticlesAbove(0),
   fzvtxcut(10.0),
+  fVxMax_MC(0.3),
+  fVyMax_MC(0.3),
+  fVzMax_MC(10.),
   ffilltrigassoUNID(kFALSE),
   ffilltrigUNIDassoID(kFALSE),
   ffilltrigIDassoUNID(kTRUE),
@@ -142,7 +153,11 @@ AliTwoParticlePIDCorr::AliTwoParticlePIDCorr() // All data members should be ini
   fmaxPtAsso(0),
  fmincentmult(0),
  fmaxcentmult(0), 
+ fPriHistShare(0),
   fhistcentrality(0),
+ fhistImpactParm(0),
+ fhistImpactParmvsMult(0x0),
+ fNchNpartCorr(0x0),
   fEventCounter(0),
   fEtaSpectrasso(0),
   fphiSpectraasso(0),
@@ -257,6 +272,8 @@ fPhiRPv0Cv3(NULL),
   fAnalysisType("AOD"), 
   fefffilename(""),
  ftwoTrackEfficiencyCutDataReco(kTRUE),
+fTwoTrackCutMinRadius(0.8),
+fTwoTrackCutMaxRadius(2.5),
   twoTrackEfficiencyCutValue(0.02),
   fPID(NULL),
  fPIDCombined(NULL),
@@ -295,7 +312,29 @@ fRemoveDuplicates(kFALSE),
   fmesoneffrequired(kFALSE),
   fkaonprotoneffrequired(kFALSE),
 fAnalysisUtils(0x0),
-  fDCAXYCut(0)     
+ fDCAXYCut(0),
+ fV0TrigCorr(kFALSE),
+ fUsev0DaughterPID(kFALSE),
+  fMinPtDaughter(1.0),// v0 related cut starts here
+  fMaxPtDaughter(4.0),
+  fDCAToPrimVtx(0.1),
+  fMaxDCADaughter(1.0),
+  fMinCPA(0.998),
+  lMax(100),
+  fHistRawPtCentInvK0s(0x0),
+  fHistRawPtCentInvLambda(0x0),
+  fHistRawPtCentInvAntiLambda(0x0),
+  fHistFinalPtCentInvK0s(0x0),
+  fHistFinalPtCentInvLambda(0x0),
+  fHistFinalPtCentInvAntiLambda(0x0),
+  NCtau(3.0),
+fCutctauK0s(2.68),
+  fCutctauLambda(7.8),
+  fCutctauAntiLambda(7.8),
+  fRapCutK0s(0.7),
+  fRapCutLambda(0.7),
+fDaugNClsTPC(70),
+fFracTPCcls(0) 
 
 { 
  for ( Int_t i = 0; i < 16; i++) { 
@@ -335,17 +374,24 @@ AliTwoParticlePIDCorr::AliTwoParticlePIDCorr(const char *name) // All data membe
    fOutputList(0),
    fList(0),
  fCentralityMethod("V0A"),
+  fPPVsMultUtils(kFALSE),
   fSampleType("pPb"),
  fRequestEventPlane(kFALSE),
+ fRequestEventPlanemixing(kFALSE),
   fnTracksVertex(1),  // QA tracks pointing to principal vertex (= 3 default)
   trkVtx(0),
   zvtx(0),
   fFilterBit(768),
   fTrackStatus(0),
   fSharedClusterCut(-1),
+  fSharedTPCmapCut(-1),
+ fSharedfraction_Pair_cut(-1),
   fVertextype(1),
    skipParticlesAbove(0),
   fzvtxcut(10.0),
+  fVxMax_MC(0.3),
+  fVyMax_MC(0.3),
+  fVzMax_MC(10.),
   ffilltrigassoUNID(kFALSE),
   ffilltrigUNIDassoID(kFALSE),
   ffilltrigIDassoUNID(kTRUE),
@@ -385,8 +431,12 @@ AliTwoParticlePIDCorr::AliTwoParticlePIDCorr(const char *name) // All data membe
   fminPtAsso(0),
   fmaxPtAsso(0),
    fmincentmult(0),
-   fmaxcentmult(0), 
+   fmaxcentmult(0),
+   fPriHistShare(0),
   fhistcentrality(0),
+   fhistImpactParm(0),
+   fhistImpactParmvsMult(0x0),
+   fNchNpartCorr(0x0),
   fEventCounter(0),
   fEtaSpectrasso(0),
   fphiSpectraasso(0),
@@ -501,6 +551,8 @@ fPhiRPv0Cv3(NULL),
   fAnalysisType("AOD"),
   fefffilename(""),
   ftwoTrackEfficiencyCutDataReco(kTRUE),
+fTwoTrackCutMinRadius(0.8),
+fTwoTrackCutMaxRadius(2.5),
   twoTrackEfficiencyCutValue(0.02),
   fPID(NULL),
   fPIDCombined(NULL),
@@ -539,7 +591,30 @@ fRemoveDuplicates(kFALSE),
  fmesoneffrequired(kFALSE),
  fkaonprotoneffrequired(kFALSE),
    fAnalysisUtils(0x0),
-  fDCAXYCut(0)    
+   fDCAXYCut(0),
+ fV0TrigCorr(kFALSE),
+ fUsev0DaughterPID(kFALSE),
+  fMinPtDaughter(1.0),// v0 related cut starts here
+  fMaxPtDaughter(4.0),
+  fDCAToPrimVtx(0.1),
+  fMaxDCADaughter(1.0),
+  fMinCPA(0.998),
+  lMax(100),
+  fHistRawPtCentInvK0s(0x0),
+  fHistRawPtCentInvLambda(0x0),
+  fHistRawPtCentInvAntiLambda(0x0),
+  fHistFinalPtCentInvK0s(0x0),
+  fHistFinalPtCentInvLambda(0x0),
+  fHistFinalPtCentInvAntiLambda(0x0),
+  NCtau(3.0),
+fCutctauK0s(2.68),
+  fCutctauLambda(7.8),
+  fCutctauAntiLambda(7.8),
+  fRapCutK0s(0.7),
+  fRapCutLambda(0.7),
+fDaugNClsTPC(70),
+fFracTPCcls(0)    
+    
   // The last in the above list should not have a comma after it
      
 {
@@ -578,9 +653,11 @@ for ( Int_t i = 0; i < 2; i++ ){
   // Define input and output slots here (never in the dummy constructor)
   // Input slot #0 works with a TChain - it is connected to the default input container
   // Output slot #1 writes into a TH1 container
+     DefineInput(0, TChain::Class());
+
   DefineOutput(1, TList::Class());                                        // for output list
   DefineOutput(2, TList::Class());
+  DefineOutput(3, TList::Class());
 
 }
 
@@ -599,6 +676,12 @@ if (fOutputList && !AliAnalysisManager::GetAnalysisManager()->IsProofMode()) {
 
   }
 
+if(fRequestEventPlane){
+if (fList && !AliAnalysisManager::GetAnalysisManager()->IsProofMode()) {
+    delete fList;
+ }
+ }
+
   if (fPID) delete fPID;
   if (fPIDCombined) delete fPIDCombined;
 
@@ -632,13 +715,6 @@ void AliTwoParticlePIDCorr::UserCreateOutputObjects()
 {
   // Create histograms
   // Called once (on the worker node)
-  AliAnalysisManager *man=AliAnalysisManager::GetAnalysisManager();
-  AliInputEventHandler* inputHandler = (AliInputEventHandler*) (man->GetInputEventHandler());
-  fPID = inputHandler->GetPIDResponse();
-
-  //AliAnalysisUtils *fUtils = new AliAnalysisUtils();
-
-//get the efficiency correction map
 
 // global switch disabling the reference 
   // (to avoid "Replacing existing TH1" if several wagons are created in train)
@@ -656,10 +732,11 @@ void AliTwoParticlePIDCorr::UserCreateOutputObjects()
   fOutputList->SetOwner();
   fOutputList->SetName("PIDQAList");
 
+  if(fRequestEventPlane){
   fList = new TList;
   fList->SetOwner();
   fList->SetName("EPQAList");
-  
+  }
   fEventCounter = new TH1F("fEventCounter","EventCounter", 19, 0.5,19.5);
   fEventCounter->GetXaxis()->SetBinLabel(1,"Event Accesed");
   fEventCounter->GetXaxis()->SetBinLabel(3,"After PileUP Cut");//only for Data
@@ -678,7 +755,7 @@ fOutput->Add(fEtaSpectrasso);
 fphiSpectraasso=new TH2F("fphiSpectraasso","fphiSpectraasso",72,0,2*TMath::Pi(),100,0.,20.);
 fOutput->Add(fphiSpectraasso);
 
- if(fSampleType=="pPb" || fSampleType=="PbPb"){ fCentralityCorrelation = new TH2D("fCentralityCorrelation", ";centrality;multiplicity", 101, 0, 101, 20000, 0,40000);
+ if(fSampleType=="pPb" || fSampleType=="PbPb" || fPPVsMultUtils==kTRUE || fCentralityMethod == "MC_b"){ fCentralityCorrelation = new TH2D("fCentralityCorrelation", ";centrality_ImpactParam;multiplicity", 101, 0, 101, 20000, 0,40000);
       fOutput->Add(fCentralityCorrelation);
  }
 
@@ -695,7 +772,7 @@ if(fCentralityMethod=="V0M" || fCentralityMethod=="V0A" || fCentralityMethod=="V
   fOutput->Add(fHistCentStats);
   }
 
-if(fCentralityMethod.EndsWith("_MANUAL"))
+if(fSampleType=="pp_2_76" || fCentralityMethod.EndsWith("_MANUAL") || (fSampleType=="pp_7" && fPPVsMultUtils==kFALSE))
   {
 fhistcentrality=new TH1F("fhistcentrality","referencemultiplicity",30001,-0.5,30000.5);
 fOutput->Add(fhistcentrality);
@@ -704,16 +781,24 @@ fOutput->Add(fhistcentrality);
 fhistcentrality=new TH1F("fhistcentrality","centrality",220,-5,105);
 fOutput->Add(fhistcentrality);
  }
+ if(fCentralityMethod=="MC_b"){
+fhistImpactParm=new TH1F("fhistImpactParm","Impact_Parameter",300,0,300);
+fOutput->Add(fhistImpactParm);
+fhistImpactParmvsMult=new TH2F("fhistImpactParmvsMult","fhistImpactParmvsMult",300,0,300,5001,-0.5,50000.5);
+fOutput->Add(fhistImpactParmvsMult);
+ }
 
-if(fCentralityMethod.EndsWith("_MANUAL"))
-  {
-TString gmultName[4] = {"V0A_MANUAL","V0C_MANUAL","V0M_MANUAL","TRACKS_MANUAL"};
+ if(fAnalysisType =="MCAOD" || fAnalysisType =="MC"){
+fNchNpartCorr=new TH2F("fNchNpartCorr","fNchNpartCorr",500,0.0,500.0,5001,-0.5,50000.5);
+fOutput->Add(fNchNpartCorr);
+ }
+
+ TString gmultName[4] = {"V0A_MANUAL","V0C_MANUAL","V0M_MANUAL","TRACKS_MANUAL"};
   fHistRefmult = new TH2F("fHistRefmult",
                              "Reference multiplicity",
                            4,-0.5,3.5,10000,0,20000);
   for(Int_t i = 1; i <= 4; i++){
     fHistRefmult->GetXaxis()->SetBinLabel(i,gmultName[i-1].Data());
-    //fHistCentStatsUsed->GetXaxis()->SetBinLabel(i,gCentName[i-1].Data());
   }
   fOutput->Add(fHistRefmult);
 
@@ -766,7 +851,7 @@ fHistEQVZEROCvsEQVZEROAmultiplicity = new TH2F("fHistEQVZEROCvsEQVZEROAmultiplic
  fHistVZEROSignal = new TH2F("fHistVZEROSignal","VZERO signal vs VZERO channel;VZERO channel; Signal (a.u.)",64,0.5,64.5,3001,-0.5,30000.5);
   fOutput->Add(fHistVZEROSignal);
  }
-}
+
 
  if(fRequestEventPlane){
 //Event plane
@@ -801,25 +886,25 @@ fHistoTOFbeta = new TH2F(Form("fHistoTOFbeta"), ";p_{T} (GeV/c);v/c",100, 0., fm
 
 if(ffillhistQAReco)
     {
-    fPionPt = new TH1F("fHistQAPionPt","p_{T} distribution",200,0.,10.);
+    fPionPt = new TH1F("fPionPt","p_{T} distribution",200,0.,10.);
  fOutputList->Add(fPionPt);
-    fPionEta= new TH1F("fHistQAPionEta","#eta distribution",360,-1.8,1.8);
+    fPionEta= new TH1F("fPionEta","#eta distribution",360,-1.8,1.8);
  fOutputList->Add(fPionEta);
-    fPionPhi = new TH1F("fHistQAPionPhi","#phi distribution",340,0,6.8);
+    fPionPhi = new TH1F("fPionPhi","#phi distribution",340,0,6.8);
  fOutputList->Add(fPionPhi);
   
-    fKaonPt = new TH1F("fHistQAKaonPt","p_{T} distribution",200,0.,10.);
+    fKaonPt = new TH1F("fKaonPt","p_{T} distribution",200,0.,10.);
  fOutputList->Add(fKaonPt);
-    fKaonEta= new TH1F("fHistQAKaonEta","#eta distribution",360,-1.8,1.8);
+    fKaonEta= new TH1F("fKaonEta","#eta distribution",360,-1.8,1.8);
  fOutputList->Add(fKaonEta);
-    fKaonPhi = new TH1F("fHistQAKaonPhi","#phi distribution",340,0,6.8);
+    fKaonPhi = new TH1F("fKaonPhi","#phi distribution",340,0,6.8);
  fOutputList->Add(fKaonPhi);
   
-    fProtonPt = new TH1F("fHistQAProtonPt","p_{T} distribution",200,0.,10.);
+    fProtonPt = new TH1F("fProtonPt","p_{T} distribution",200,0.,10.);
  fOutputList->Add(fProtonPt);
-    fProtonEta= new TH1F("fHistQAProtonEta","#eta distribution",360,-1.8,1.8);
+    fProtonEta= new TH1F("fProtonEta","#eta distribution",360,-1.8,1.8);
  fOutputList->Add(fProtonEta);
-    fProtonPhi= new TH1F("fHistQAProtonPhi","#phi distribution",340,0,6.8);
+    fProtonPhi= new TH1F("fProtonPhi","#phi distribution",340,0,6.8);
  fOutputList->Add(fProtonPhi);
     }
 
@@ -839,12 +924,15 @@ if(ffillhistQAReco)
  fHistQA[12] = new TH1F("fHistQANCls1","Number of TPC cluster1",200,0,200);
  fHistQA[14] = new TH1F("nCrossedRowsTPC","Number of TPC ccrossed rows",200,0,200);
  fHistQA[15] = new TH1F("ratioCrossedRowsOverFindableClustersTPC","Number of TPC ccrossed rows find clusters",200,0,2);
-
+    
 for(Int_t i = 0; i < 16; i++)
     {
       fOutput->Add(fHistQA[i]);
     }
 
+    fPriHistShare = new TH1F ("fPriHistShare","Shared clusters, primaries;#shared clusters;counts",160,0,160);
+    fOutput->Add(fPriHistShare);
+
    Int_t eventplaneaxis=0;
 
    if (fRequestEventPlane) eventplaneaxis=1;
@@ -875,14 +963,21 @@ for(Int_t i = 0; i < 16; i++)
     "vertex: -10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10\n"
   "delta_phi: -1.570796, -1.483530, -1.396263, -1.308997, -1.221730, -1.134464, -1.047198, -0.959931, -0.872665, -0.785398, -0.698132, -0.610865, -0.523599, -0.436332, -0.349066, -0.261799, -0.174533, -0.087266, 0.0, 0.087266, 0.174533, 0.261799, 0.349066, 0.436332, 0.523599, 0.610865, 0.698132, 0.785398, 0.872665, 0.959931, 1.047198, 1.134464, 1.221730, 1.308997, 1.396263, 1.483530, 1.570796, 1.658063, 1.745329, 1.832596, 1.919862, 2.007129, 2.094395, 2.181662, 2.268928, 2.356194, 2.443461, 2.530727, 2.617994, 2.705260, 2.792527, 2.879793, 2.967060, 3.054326, 3.141593, 3.228859, 3.316126, 3.403392, 3.490659, 3.577925, 3.665191, 3.752458, 3.839724, 3.926991, 4.014257, 4.101524, 4.188790, 4.276057, 4.363323, 4.450590, 4.537856, 4.625123, 4.712389\n" // this binning starts at -pi/2 and is modulo 3 
        "delta_eta: -2.4, -2.3, -2.2, -2.1, -2.0, -1.9, -1.8, -1.7, -1.6, -1.5, -1.4, -1.3, -1.2, -1.1, -1.0, -0.9, -0.8, -0.7, -0.6, -0.5, -0.4, -0.3, -0.2, -0.1, 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0,2.1, 2.2, 2.3, 2.4\n"
-      "multiplicity: 0, 1, 2, 3, 4, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100.1\n";
+      "multiplicity: 0, 1, 2, 3, 4, 5, 10, 20, 30, 40, 50, 60, 70, 80, 90, 100.1\n"
+      "multiplicity_mixing: 0., 1., 2., 3., 4., 5., 10., 20., 30., 40., 50., 60., 70., 80., 90., 100.1\n";
+
 
+  if(fV0TrigCorr){
+defaultBinningStr += "InvariantMass:0.200,0.300,0.398,0.399,0.4,0.401,0.402,0.403,0.404,0.405,0.406,0.407,0.408,0.409,0.41,0.411,0.412,0.413,0.414,0.415,0.416,0.417,0.418,0.419,0.42,0.421,0.422,0.423,0.424,0.425,0.426,0.427,0.428,0.429,0.43,0.431,0.432,0.433,0.434,0.435,0.436,0.437,0.438,0.439,0.44,0.441,0.442,0.443,0.444,0.445,0.446,0.447,0.448,0.449,0.45,0.451,0.452,0.453,0.454,0.455,0.456,0.457,0.458,0.459,0.46,0.461,0.462,0.463,0.464,0.465,0.466,0.467,0.468,0.469,0.47,0.471,0.472,0.473,0.474,0.475,0.476,0.477,0.478,0.479,0.48,0.481,0.482,0.483,0.484,0.485,0.486,0.487,0.488,0.489,0.49,0.491,0.492,0.493,0.494,0.495,0.496,0.497,0.498,0.499,0.5,0.501,0.502,0.503,0.504,0.505,0.506,0.507,0.508,0.509,0.51,0.511,0.512,0.513,0.514,0.515,0.516,0.517,0.518,0.519,0.52,0.521,0.522,0.523,0.524,0.525,0.526,0.527,0.528,0.529,0.53,0.531,0.532,0.533,0.534,0.535,0.536,0.537,0.538,0.539,0.54,0.541,0.542,0.543,0.544,0.545,0.546,0.547,0.548,0.549,0.55,0.551,0.552,0.553,0.554,0.555,0.556,0.557,0.558,0.559,0.56,0.561,0.562,0.563,0.564,0.565,0.566,0.567,0.568,0.569,0.57,0.571,0.572,0.573,0.574,0.575,0.576,0.577,0.578,0.579,0.58,0.581,0.582,0.583,0.584,0.585,0.586,0.587,0.588,0.589,0.59,0.591,0.592,0.593,0.594,0.595,0.596,0.597,0.598,0.599,0.600,0.700,0.800,0.900,1.000,1.065,1.066,1.067,1.068,1.069,1.07,1.071,1.072,1.073,1.074,1.075,1.076,1.077,1.078,1.079,1.08,1.081,1.082,1.083,1.084,1.085,1.086,1.087,1.088,1.089,1.09,1.091,1.092,1.093,1.094,1.095,1.096,1.097,1.098,1.099,1.1,1.101,1.102,1.103,1.104,1.105,1.106,1.107,1.108,1.109,1.11,1.111,1.112,1.113,1.114,1.115,1.116,1.117,1.118,1.119,1.12,1.121,1.122,1.123,1.124,1.125,1.126,1.127,1.128,1.129,1.13,1.131,1.132,1.133,1.134,1.135,1.136,1.137,1.138,1.139,1.14,1.141,1.142,1.143,1.144,1.145,1.146,1.147,1.148,1.149,1.15,1.151,1.152,1.153,1.154,1.155,1.156,1.157,1.158,1.159,1.16,1.161,1.162,1.163,1.164,1.165\n";
+  }
  if(fRequestEventPlane){
    defaultBinningStr += "eventPlane: -0.5,0.5,1.5,2.5,3.5\n"; // Event Plane Bins (Psi: -0.5->0.5 (in plane), 0.5->1.5 (intermediate), 1.5->2.5 (out of plane), 2.5->3.5 (rest))
   }
-
+ if(fRequestEventPlanemixing){
+defaultBinningStr += "eventPlanemixing: 0.0*TMath::DegToRad(), 30.0*TMath::DegToRad(), 60.0*TMath::DegToRad(), 90.0*TMath::DegToRad(), 120.0*TMath::DegToRad(),150.0*TMath::DegToRad(),180.1*TMath::DegToRad()\n";
+ }
   if(fcontainPIDtrig){
-      defaultBinningStr += "PIDTrig: -0.5,0.5,1.5,2.5,3.5\n"; // course
+      defaultBinningStr += "PIDTrig: -0.5,0.5,1.5,2.5,3.5,4.5,5.5,6.5,7.5,8.5,9.5,10.5\n"; // course
   }
   if(fcontainPIDasso){
       defaultBinningStr += "PIDAsso: -0.5,0.5,1.5,2.5,3.5\n"; // course
@@ -950,8 +1045,14 @@ for(Int_t i = 0; i < 16; i++)
     }
 
  if(fcontainPIDtrig && !fcontainPIDasso){
+   if(fV0TrigCorr){
+    dBinsPair[dim_val]       = GetBinning(fBinningString, "InvariantMass", iBinPair[dim_val]);
+    axisTitlePair[dim_val]   = "InvariantMass"; 
+   }
+   else{
     dBinsPair[dim_val]       = GetBinning(fBinningString, "PIDTrig", iBinPair[dim_val]);
     axisTitlePair[dim_val]   = "PIDTrig"; 
+   }
     if(SetChargeAxis==2){
     dBinsPair[dim_val+1]       = GetBinning(fBinningString, "TrigCharge", iBinPair[dim_val+1]);
     axisTitlePair[dim_val+1]   = "TrigCharge";
@@ -976,8 +1077,14 @@ for(Int_t i = 0; i < 16; i++)
 
 if(fcontainPIDtrig && fcontainPIDasso){
 
+   if(fV0TrigCorr){
+    dBinsPair[dim_val]       = GetBinning(fBinningString, "InvariantMass", iBinPair[dim_val]);
+    axisTitlePair[dim_val]   = "InvariantMass"; 
+   }
+   else{
     dBinsPair[dim_val]       = GetBinning(fBinningString, "PIDTrig", iBinPair[dim_val]);
-    axisTitlePair[dim_val]   = "PIDTrig";
+    axisTitlePair[dim_val]   = "PIDTrig"; 
+   }
 
     dBinsPair[dim_val+1]       = GetBinning(fBinningString, "PIDAsso", iBinPair[dim_val+1]);
     axisTitlePair[dim_val+1]   = "PIDAsso";
@@ -997,7 +1104,11 @@ if(fcontainPIDtrig && fcontainPIDasso){
         Int_t nPteffbin = -1;
        Double_t* Pteff = GetBinning(fBinningString, "p_t_eff", nPteffbin);
 
+        Int_t multmixbin = -1;
+       Double_t* multmix = GetBinning(fBinningString, "multiplicity_mixing", multmixbin);
 
+
+       //Set the limits from custom binning
        fminPtTrig=dBinsPair[2][0];
         fmaxPtTrig=dBinsPair[2][iBinPair[2]];
         fminPtAsso=dBinsPair[3][0];
@@ -1012,60 +1123,23 @@ Double_t ZvrtxBins[NofVrtxBins+1]={ -10,   -8,  -6,  -4,  -2,   0,   2,   4,   6
                                       90,  92,  94,  96,  98, 100, 102, 104, 106, 108, 110, 
                                    190, 192, 194, 196, 198, 200, 202, 204, 206, 208, 210}; 
 
-if(fCentralityMethod.EndsWith("_MANUAL"))
-   {
- const Int_t NofCentBins=10;
- Double_t CentralityBins[NofCentBins+1]={0.,9.,14.,19.,26.,34.,44.,58.,80.,500.,1000.};//Is This binning is fine for pp, or we don't require them....
-if(fRequestEventPlane){
-    // Event plane angle (Psi) bins
-  /*
-    Double_t* psibins = NULL;
-    Int_t nPsiBins; 
-    psibins = GetBinning(fBinningString, "eventPlane", nPsiBins);
-  */
- const Int_t  nPsiBins=6;
- Double_t psibins[nPsiBins+1]={0.0*TMath::DegToRad(), 30.0*TMath::DegToRad(), 60.0*TMath::DegToRad(), 90.0*TMath::DegToRad(), 120.0*TMath::DegToRad(),150.0*TMath::DegToRad(),180.1*TMath::DegToRad()};
-fPoolMgr = new AliEventPoolManager(MaxNofEvents,fMaxNofMixingTracks,NofCentBins,CentralityBins,NofVrtxBins,ZvrtxBins, nPsiBins, psibins);
-// if(psibins)  delete [] psibins; 
-                                   }
-
- else{
- const Int_t  nPsiBinsd=1;
- Double_t psibinsd[nPsiBinsd+1]={0.0, 2000.0};
-fPoolMgr = new AliEventPoolManager(MaxNofEvents,fMaxNofMixingTracks,NofCentBins,CentralityBins,NofVrtxBins,ZvrtxBins, nPsiBinsd, psibinsd);
-
-// fPoolMgr = new AliEventPoolManager(MaxNofEvents,fMaxNofMixingTracks,NofCentBins,CentralityBins,NofVrtxBins,ZvrtxBins);
- }  
-fPoolMgr->SetTargetValues(fMaxNofMixingTracks, 0.1, 5);
 
-   }
- else
-   {
- const Int_t  NofCentBins=15;
-Double_t CentralityBins[NofCentBins+1]={0., 1., 2., 3., 4., 5., 10., 20., 30., 40., 50., 60., 70., 80., 90., 100.1 };
- if(fRequestEventPlane){
-    // Event plane angle (Psi) bins
-   /*
-    Double_t* psibins = NULL;
-    Int_t nPsiBins; 
-    psibins = GetBinning(fBinningString, "eventPlane", nPsiBins);
-   */
- const Int_t  nPsiBins=6;
- Double_t psibins[nPsiBins+1]={0.0*TMath::DegToRad(), 30.0*TMath::DegToRad(), 60.0*TMath::DegToRad(), 90.0*TMath::DegToRad(), 120.0*TMath::DegToRad(),150.0*TMath::DegToRad(),180.1*TMath::DegToRad()};
-fPoolMgr = new AliEventPoolManager(MaxNofEvents,fMaxNofMixingTracks,NofCentBins,CentralityBins,NofVrtxBins,ZvrtxBins, nPsiBins, psibins);
-// if(psibins)  delete [] psibins; 
+if(fRequestEventPlanemixing){
+    // Event plane angle (Psi) bins for event mixing
+  
+    Int_t nPsiBins=-1;; 
+    Double_t* psibins = GetBinning(fBinningString, "eventPlanemixing", nPsiBins);
+    fPoolMgr = new AliEventPoolManager(MaxNofEvents,fMaxNofMixingTracks,multmixbin,multmix,NofVrtxBins,ZvrtxBins, nPsiBins, psibins);
+    if(psibins)  delete [] psibins; 
                                    }
 
  else{
-const Int_t  nPsiBinsd=1;
+ const Int_t  nPsiBinsd=1;
  Double_t psibinsd[nPsiBinsd+1]={0.0, 2000.0};
-fPoolMgr = new AliEventPoolManager(MaxNofEvents,fMaxNofMixingTracks,NofCentBins,CentralityBins,NofVrtxBins,ZvrtxBins, nPsiBinsd, psibinsd);
+fPoolMgr = new AliEventPoolManager(MaxNofEvents,fMaxNofMixingTracks,multmixbin,multmix,NofVrtxBins,ZvrtxBins, nPsiBinsd, psibinsd);
 
-//fPoolMgr = new AliEventPoolManager(MaxNofEvents,fMaxNofMixingTracks,NofCentBins,CentralityBins,NofVrtxBins,ZvrtxBins);
  }  
 fPoolMgr->SetTargetValues(fMaxNofMixingTracks, 0.1, 5);
-   }
-
  
    if(!fPoolMgr){
       AliError("Event Mixing required, but Pool Manager not initialized...");
@@ -1158,7 +1232,7 @@ for (Int_t j=0; j<kTrackVariablesPair; j++) {
 
 
   //ThnSparse for Correlation plots(truth MC)
-     if((fAnalysisType == "MCAOD") && ffilltrigIDassoIDMCTRUTH) {//remember that in this case uidentified means other than pions, kaons, protons
+     if(ffilltrigIDassoIDMCTRUTH) {//remember that in this case uidentified means other than pions, kaons, protons
 
 fCorrelatonTruthPrimary = new AliTHn("fCorrelatonTruthPrimary", title, anaSteps, kTrackVariablesPair, iBinPair);
 for (Int_t j=0; j<kTrackVariablesPair; j++) {
@@ -1250,17 +1324,17 @@ axisTitleTrig[dim_val_trig+1]=axisTitlePair[dim_val+2];
   fOutput->Add(fTHnTrigcount);
          }
   
-  if((fAnalysisType =="MCAOD") && ffilltrigIDassoIDMCTRUTH) {
+  if(ffilltrigIDassoIDMCTRUTH) {
   //AliTHns for trigger counting(truth MC)
   fTHnTrigcountMCTruthPrim = new  AliTHn("fTHnTrigcountMCTruthPrim", "fTHnTrigcountMCTruthPrim", 2, dims, fBinst); //2 steps;;;;0->same event;;;;;1->mixed event
  for(Int_t i=0; i<dims;i++){
-    fTHnTrigcount->SetBinLimits(i, dBinsTrig[i]);
-    fTHnTrigcount->SetVarTitle(i, axisTitleTrig[i]);
+    fTHnTrigcountMCTruthPrim->SetBinLimits(i, dBinsTrig[i]);
+    fTHnTrigcountMCTruthPrim->SetVarTitle(i, axisTitleTrig[i]);
   } 
   fOutput->Add(fTHnTrigcountMCTruthPrim);
  }
 
-if(fAnalysisType=="MCAOD"){
+if(fAnalysisType=="MCAOD" || fAnalysisType=="MC"){
   if(ffillhistQATruth)
     {
   MCtruthpt=new TH1F ("MCtruthpt","ptdistributiontruthprim",100,0.,10.);
@@ -1390,6 +1464,43 @@ fileT->Close();
 
    }
 
+ delete [] EtaBin; 
+ delete [] Pteff; 
+ delete [] multmix; 
+
+ //******************************************************************V0 plots*********************************************//
+ if(fV0TrigCorr){
+       //histos for v0
+       //Double_t BinsV0[]={1.0,1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0,2.2,2.4,2.6,2.8,3.0,3.2,3.4,3.6,3.8,4.0,4.5,5.0,5.5,6.5,8.0};
+       //const Int_t nbinsV0 =sizeof(BinsV0)/sizeof(Double_t)-1;
+
+
+   fHistRawPtCentInvK0s= new TH3F("fHistRawPtCentInvK0s", "K^{0}_{s}: mass vs #it{p}_{T};Mass (GeV/#it{c}^2);#it{p}_{T} (GeV/#it{c});centrality",100,0.398,0.598,100,0.0,10.0,100,0.0,100.);
+fOutput->Add(fHistRawPtCentInvK0s);
+
+
+ fHistRawPtCentInvLambda= new TH3F("fHistRawPtCentInvLambda", "#Lambda: mass vs #it{p}_{T};Mass (GeV/#it{c}^2);#it{p}_{T} (GeV/#it{c});centrality",100,1.065,1.165,100,0.0,10.0,100,0.0,100.);
+fOutput->Add(fHistRawPtCentInvLambda);
+
+
+ fHistRawPtCentInvAntiLambda= new TH3F("fHistRawPtCentInvAntiLambda", "#bar{#Lambda} : mass vs #it{p}_{T};Mass (GeV/#it{c}^2);#it{p}_{T} (GeV/#it{c});centrality",100,1.065,1.165,100,0.0,10.0,100,0.0,100.);
+fOutput->Add(fHistRawPtCentInvAntiLambda);
+
+
+ fHistFinalPtCentInvK0s= new TH3F("fHistFinalPtCentInvK0s", "K^{0}_{s}: mass vs #it{p}_{T};Mass (GeV/#it{c}^2);#it{p}_{T} (GeV/#it{c});centrality",100,0.398,0.598,100,0.0,10.0,100,0.0,100.);
+fOutput->Add(fHistFinalPtCentInvK0s);
+
+
+ fHistFinalPtCentInvLambda= new TH3F("fHistFinalPtCentInvLambda", "#Lambda: mass vs #it{p}_{T};Mass (GeV/#it{c}^2);#it{p}_{T} (GeV/#it{c});centrality",100,1.065,1.165,100,0.0,10.0,100,0.0,100.);
+fOutput->Add(fHistFinalPtCentInvLambda);
+
+
+ fHistFinalPtCentInvAntiLambda= new TH3F("fHistFinalPtCentInvAntiLambda", "#bar{#Lambda} : mass vs #it{p}_{T};Mass (GeV/#it{c}^2);#it{p}_{T} (GeV/#it{c});centrality",100,1.065,1.165,100,0.0,10.0,100,0.0,100.);
+fOutput->Add(fHistFinalPtCentInvAntiLambda);
+
+ }
+
   //*************************************************************EP plots***********************************************//
   if(fRequestEventPlane){
   // TProfile for resolutions 3 subevents (V0A, V0C, TPC)
@@ -1596,14 +1707,10 @@ fileT->Close();
   if(fRequestEventPlane) PostData(3, fList);
   AliInfo("Finished setting up the Output");
 
-  TH1::AddDirectory(oldStatus);
-
-
-
+   TH1::AddDirectory(oldStatus);
 }
 //-------------------------------------------------------------------------------
 void AliTwoParticlePIDCorr::UserExec( Option_t * ){
-
  
   if(fAnalysisType == "AOD") {
 
@@ -1611,10 +1718,10 @@ void AliTwoParticlePIDCorr::UserExec( Option_t * ){
     
   }//AOD--analysis-----
 
-  else if(fAnalysisType == "MCAOD") {
+  else if(fAnalysisType == "MCAOD" || fAnalysisType == "MC") {
   
     doMCAODevent();
-    
+
   }
   
   else return;
@@ -1623,17 +1730,21 @@ void AliTwoParticlePIDCorr::UserExec( Option_t * ){
 //-------------------------------------------------------------------------
 void AliTwoParticlePIDCorr::doMCAODevent() 
 {
-  AliVEvent *event = InputEvent();
-  if (!event) { Printf("ERROR: Could not retrieve event"); return; }
-  AliAODEvent* aod = dynamic_cast<AliAODEvent*>(event);
-  if (!aod) {
-    AliError("Cannot get the AOD event");
+
+  // get the event (for generator level: MCEvent())
+  AliVEvent* event = NULL;
+  if(fAnalysisType == "MC") {
+    event = dynamic_cast<AliVEvent*>(MCEvent());
+  }
+  else{
+    event = dynamic_cast<AliVEvent*>(InputEvent());     
+  }
+  if(!event) {
+    AliError("eventMain not available");
     return;
   }
-// count all events(physics triggered)   
-  fEventCounter->Fill(1);
 
+  Double_t Inv_mass=0.0;//has no meaning for pions, kaons and protons(just set 0.0) to fill the LRCParticlePID position
     evplaneMC=999.;
     fgPsi2v0aMC=999.;
     fgPsi2v0cMC=999.;
@@ -1647,10 +1758,257 @@ void AliTwoParticlePIDCorr::doMCAODevent()
   Double_t cent_v0=-1.0;
   Double_t effcent=1.0;
   Double_t refmultReco =0.0;
+   Double_t nooftrackstruth=0.0;//in case of pp this will give the multiplicity(for truth case) after the track loop(only for unidentified particles that pass  kinematic cuts)
 
-//check the PIDResponse handler
-  if (!fPID) return;
 
+if(fAnalysisType == "MC"){
+   
+    AliMCEvent *gMCEvent = dynamic_cast<AliMCEvent*>(event);
+
+ if(!gMCEvent) {
+      AliError("mcEvent not available");
+      return ;
+    }
+// count all events(physics triggered)   
+  fEventCounter->Fill(1);
+
+       AliGenEventHeader *header = dynamic_cast<AliGenEventHeader*>(gMCEvent->GenEventHeader());
+       if(!header) return;  
+         TArrayF gVertexArray;
+         header->PrimaryVertex(gVertexArray);
+          Float_t zVtxmc =gVertexArray.At(2);
+         //cout<<"*****************************************************************************************************hi I am here"<<endl;
+
+         cent_v0=GetAcceptedEventMultiplicity((AliVEvent*)gMCEvent,kFALSE); //b value; 2nd argument has no meaning
+ if(cent_v0<0.) return;//mainly returns impact parameter
+
+ //get the event plane in case of PbPb
+   if(fRequestEventPlane){
+     gReactionPlane=GetEventPlane((AliVEvent*)gMCEvent,kTRUE,cent_v0);//get the truth event plane,middle argument has no meaning in this case
+   if(gReactionPlane==999.) return;
+ }
+
+
+TObjArray* tracksMCtruth=new TObjArray;//for truth MC particles with PID,here unidentified means any particle other than pion, kaon or proton(Basicaly Spundefined of AliHelperPID)******WARNING::different from data and reco MC
+ tracksMCtruth->SetOwner(kTRUE);  //***********************************IMPORTANT!
+
+for (Int_t iTracks = 0; iTracks < gMCEvent->GetNumberOfPrimaries(); iTracks++) {
+       AliMCParticle* partMC = dynamic_cast<AliMCParticle *>(gMCEvent->GetTrack(iTracks));
+       if (!partMC) {
+         AliError(Form("Could not receive particle %d", iTracks));
+         continue;
+       }
+//exclude non stable particles
+       if(fselectprimaryTruth && !(gMCEvent->IsPhysicalPrimary(iTracks))) continue;
+
+//consider only charged particles
+    if(partMC->Charge() == 0) continue;
+
+
+//give only kinematic cuts at the generator level  
+ if (partMC->Eta() < fmineta || partMC->Eta() > fmaxeta) continue;
+ if (partMC->Pt() < fminPt ||  partMC->Pt() > fmaxPt) continue;
+
+ if(!partMC) continue;//for safety
+
+          TParticle *particle = partMC->Particle();
+         if(!particle) continue;
+           Int_t particletypeTruth=-999;
+         
+         Int_t pdgtruth = particle->GetPdgCode();
+
+ //To determine multiplicity in case of PP
+ nooftrackstruth++;
+ //cout<<"**************************************"<<TMath::Abs(partMC->GetLabel())<<endl;
+//only physical primary(all/unidentified)  
+if(ffillhistQATruth)
+    {
+ MCtruthpt->Fill(partMC->Pt());
+ MCtrutheta->Fill(partMC->Eta());
+ MCtruthphi->Fill(partMC->Phi());
+    }
+ if (TMath::Abs(pdgtruth)==211)
+   {
+ particletypeTruth=SpPion;
+if(ffillhistQATruth)
+    {
+ MCtruthpionpt->Fill(partMC->Pt());
+ MCtruthpioneta->Fill(partMC->Eta());
+ MCtruthpionphi->Fill(partMC->Phi());
+    }
+      }
+ if (TMath::Abs(pdgtruth)==321)
+   {
+ particletypeTruth=SpKaon;
+if(ffillhistQATruth)
+    {
+ MCtruthkaonpt->Fill(partMC->Pt());
+ MCtruthkaoneta->Fill(partMC->Eta());
+ MCtruthkaonphi->Fill(partMC->Phi());
+  }
+    }
+if(TMath::Abs(pdgtruth)==2212)
+  {
+ particletypeTruth=SpProton;
+if(ffillhistQATruth)
+    {
+ MCtruthprotonpt->Fill(partMC->Pt());
+ MCtruthprotoneta->Fill(partMC->Eta());
+ MCtruthprotonphi->Fill(partMC->Phi());
+    }
+     }
+ if(TMath::Abs(pdgtruth)!=211 && TMath::Abs(pdgtruth)!=321 && TMath::Abs(pdgtruth)!=2212)  particletypeTruth=unidentified;//*********************WARNING:: situation is different from reco MC and data case(here we don't have SpUndefined particles,because here unidentified=SpUndefined)
+
+    if(fRequestEventPlane){
+      FillPIDEventPlane(cent_v0,particletypeTruth,partMC->Phi(),gReactionPlane);
+    }
+    /*
+//Exclude resonances
+       if(fExcludeResonancesInMC) {
+         TParticle *particle = track->Particle();
+         if(!particle) continue;
+         
+         Bool_t kExcludeParticle = kFALSE;
+         Int_t gMotherIndex = particle->GetFirstMother();
+         if(gMotherIndex != -1) {
+           AliMCParticle* motherTrack = dynamic_cast<AliMCParticle *>(event->GetTrack(gMotherIndex));
+           if(motherTrack) {
+             TParticle *motherParticle = motherTrack->Particle();
+             if(motherParticle) {
+               Int_t pdgCodeOfMother = motherParticle->GetPdgCode();
+               //if((pdgCodeOfMother == 113)||(pdgCodeOfMother == 213)||(pdgCodeOfMother == 221)||(pdgCodeOfMother == 223)||(pdgCodeOfMother == 331)||(pdgCodeOfMother == 333)) {
+               }
+               if(pdgCodeOfMother == 113  // rho0
+                  || pdgCodeOfMother == 213 || pdgCodeOfMother == -213 // rho+
+                  // || pdgCodeOfMother == 221  // eta
+                  // || pdgCodeOfMother == 331  // eta'
+                  // || pdgCodeOfMother == 223  // omega
+                  // || pdgCodeOfMother == 333  // phi
+                  || pdgCodeOfMother == 311  || pdgCodeOfMother == -311 // K0
+                  // || pdgCodeOfMother == 313  || pdgCodeOfMother == -313 // K0*
+                  // || pdgCodeOfMother == 323  || pdgCodeOfMother == -323 // K+*
+                  || pdgCodeOfMother == 3122 || pdgCodeOfMother == -3122 // Lambda
+                  || pdgCodeOfMother == 111  // pi0 Dalitz
+                  ) {
+                 kExcludeParticle = kTRUE;
+               }
+             }
+           }
+         }
+         
+         //Exclude from the analysis decay products of rho0, rho+, eta, eta' and phi
+         if(kExcludeParticle) continue;
+       }
+
+       //Exclude electrons with PDG
+       if(fExcludeElectronsInMC) {
+         
+         TParticle *particle = track->Particle();
+         
+         if (particle){ 
+           if(TMath::Abs(particle->GetPdgCode()) == 11) continue;
+         }
+       }
+    */
+
+ Float_t effmatrixtruth=1.0;//In Truth MC, no case of efficiency correction so it should be always 1.0
+if((partMC->Pt()>=fminPtAsso && partMC->Pt()<=fmaxPtAsso) || (partMC->Pt()>=fminPtTrig && partMC->Pt()<=fmaxPtTrig))//to reduce memory consumption in pool
+  {
+    Short_t chargeval=0;
+    if(partMC->Charge()>0)   chargeval=1;
+    if(partMC->Charge()<0)   chargeval=-1;
+    if(chargeval==0) continue;
+    const TBits *clustermap=0;
+    const TBits *sharemap=0;
+    LRCParticlePID* copy6 = new LRCParticlePID(particletypeTruth,Inv_mass,chargeval,partMC->Pt(),partMC->Eta(), partMC->Phi(),effmatrixtruth,clustermap,sharemap);
+//copy6->SetUniqueID(eventno * 100000 + TMath::Abs(partMC->GetLabel()));
+ copy6->SetUniqueID(eventno * 100000 + (Int_t)nooftrackstruth);
+ tracksMCtruth->Add(copy6);//************** TObjArray used for truth correlation function calculation
+  }
+ }//track loop ends
+
+ if(nooftrackstruth>0.0){
+if (fSampleType=="pPb" || fSampleType=="PbPb" || fPPVsMultUtils==kTRUE || fCentralityMethod == "MC_b") fCentralityCorrelation->Fill(cent_v0, nooftrackstruth);//only with unidentified tracks(i.e before PID selection);;;;;can be used to remove centrality outliers??????
+
+AliCollisionGeometry* collGeometry = dynamic_cast<AliCollisionGeometry*>(gMCEvent->GenEventHeader());    
+ if(collGeometry){
+Float_t NpartProj= collGeometry-> ProjectileParticipants();
+Float_t NpartTarg = collGeometry->TargetParticipants();
+ Float_t Npart= (NpartProj + NpartTarg);
+fNchNpartCorr->Fill(Npart,nooftrackstruth);
+ }
+ }
+
+  if (fRandomizeReactionPlane)//only for TRuth MC??
+  {
+    Double_t centralityDigits = cent_v0*1000. - (Int_t)(cent_v0*1000.);
+    Double_t angle = TMath::TwoPi() * centralityDigits;
+    AliInfo(Form("Shifting phi of all tracks by %f (digits %f)", angle, centralityDigits));
+    ShiftTracks(tracksMCtruth, angle);  
+  }
+
+ Float_t weghtval=1.0;
+ Float_t bSign = 0;
+
+if(nooftrackstruth>0.0 && ffilltrigIDassoIDMCTRUTH)
+  {
+ //Fill Correlations for MC truth particles(same event)
+if(tracksMCtruth && tracksMCtruth->GetEntriesFast()>0)//hadron triggered correlation
+  Fillcorrelation(gReactionPlane,tracksMCtruth,0,cent_v0,zVtxmc,weghtval,kFALSE,bSign,fPtOrderMCTruth,kFALSE,kFALSE,"trigIDassoIDMCTRUTH");//mixcase=kFALSE for same event case
+
+//start mixing
+ AliEventPool* pool2 = fPoolMgr->GetEventPool(cent_v0, zVtxmc+200, gReactionPlane);
+if (pool2 && pool2->IsReady())
+  {//start mixing only when pool->IsReady
+if(tracksMCtruth && tracksMCtruth->GetEntriesFast()>0)
+  {//proceed only when no. of trigger particles >0 in current event
+    Float_t nmix=(Float_t)pool2->GetCurrentNEvents();  
+for (Int_t jMix=0; jMix<pool2->GetCurrentNEvents(); jMix++) 
+  { //pool event loop start
+ TObjArray* bgTracks6 = pool2->GetEvent(jMix);
+  if(!bgTracks6) continue;
+  Fillcorrelation(gReactionPlane,tracksMCtruth,bgTracks6,cent_v0,zVtxmc,nmix,(jMix == 0),bSign,fPtOrderMCTruth,kFALSE,kTRUE,"trigIDassoIDMCTRUTH");//mixcase=kTRUE for mixing case
+  
+   }// pool event loop ends mixing case
+ }//if(trackstrig && trackstrig->GetEntriesFast()>0) condition ends mixing case
+} //if pool->IsReady() condition ends mixing case
+
+ //still in main event loop
+
+ if(tracksMCtruth){
+if(pool2)  pool2->UpdatePool(CloneAndReduceTrackList(tracksMCtruth));//ownership of tracksasso is with pool now, don't delete it
+ }
+  }
+
+ //still in main event loop
+
+if(tracksMCtruth) delete tracksMCtruth;
+
+
+ }//MC type
+
+//"MC" type analysis is finished but still in event loop
+
+ else{//if(fAnalysisType=="MCAOD")
+
+  AliAODEvent* aod = dynamic_cast<AliAODEvent*>(event);
+  if (!aod) {
+    AliError("Cannot get the AOD event");
+    return;
+  }
+// count all events(physics triggered)   
+  fEventCounter->Fill(1);
+
+   
+
+//check the PIDResponse handler
+     fPID = ((AliInputEventHandler*)(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()))->GetPIDResponse();
+    if (!fPID) AliFatal("This Task needs the PID response attached to the inputHandler");
+    //if (!fPID) return;
 // get mag. field required for twotrack efficiency cut
  Float_t bSign = 0;
  bSign = (aod->GetMagneticField() > 0) ? 1 : -1;
@@ -1700,30 +2058,27 @@ skipParticlesAbove = eventHeader->NProduced();
     AliInfo(Form("Injected signals in this event (%d headers). Keeping events of %s. Will skip particles/tracks above %d.", headers, eventHeader->ClassName(), skipParticlesAbove));
   }
 
- if (fSampleType=="pp" && fCentralityMethod.EndsWith("_MANUAL"))
+ if (fSampleType=="pp_2_76" || fCentralityMethod.EndsWith("_MANUAL") || (fSampleType=="pp_7" && fPPVsMultUtils==kFALSE))
    {
  //make the event selection with reco vertex cut and centrality cut and return the value of the centrality
-     Double_t refmultTruth = GetAcceptedEventMultiplicity(aod,kTRUE);  //incase of ref multiplicity it will return the truth MC ref mullt value; need to determine the ref mult value separately for reco Mc case; in case of centrality this is final and fine
-     refmultReco = GetAcceptedEventMultiplicity(aod,kFALSE); 
+     Double_t refmultTruth = GetAcceptedEventMultiplicity((AliVEvent*)aod,kTRUE);  //incase of ref multiplicity it will return the truth MC ref mullt value; need to determine the ref mult value separately for reco Mc case; in case of centrality this is final and fine
+     refmultReco = GetAcceptedEventMultiplicity((AliVEvent*)aod,kFALSE); 
      if(refmultTruth<=0 || refmultReco<=0) return;
      cent_v0=refmultTruth;
    }
  else {
- cent_v0=GetAcceptedEventMultiplicity(aod,kTRUE); //centrality value; 2nd argument has no meaning
- if(cent_v0<0.) return;
+ cent_v0=GetAcceptedEventMultiplicity((AliVEvent*)aod,kFALSE); //centrality value; 2nd argument has no meaning
  }
 
+ if(cent_v0<0.) return;
  effcent=cent_v0;// This will be required for efficiency THn filling(specially in case of pp)
 
   //get the event plane in case of PbPb
    if(fRequestEventPlane){
-   gReactionPlane=GetEventPlane(aod,kTRUE,cent_v0);//get the truth event plane
+     gReactionPlane=GetEventPlane((AliVEvent*)aod,kTRUE,cent_v0);//get the truth event plane
    if(gReactionPlane==999.) return;
  }
-  
-
-   Double_t nooftrackstruth=0.0;//in case of pp this will give the multiplicity(for truth case) after the track loop(only for unidentified particles that pass  kinematic cuts)
-
    //TObjArray* tracksMCtruth=0;
 TObjArray* tracksMCtruth=new TObjArray;//for truth MC particles with PID,here unidentified means any particle other than pion, kaon or proton(Basicaly Spundefined of AliHelperPID)******WARNING::different from data and reco MC
  tracksMCtruth->SetOwner(kTRUE);  //***********************************IMPORTANT!
@@ -1801,6 +2156,7 @@ Int_t particletypeTruth=-999;
  particletypeTruth=SpPion;
 if(ffillhistQATruth)
     {
+
  MCtruthpionpt->Fill(partMC->Pt());
  MCtruthpioneta->Fill(partMC->Eta());
  MCtruthpionphi->Fill(partMC->Phi());
@@ -1833,7 +2189,7 @@ if(ffillhistQATruth)
     }
 
  // -- Fill THnSparse for efficiency and contamination calculation
if (fSampleType=="pp" && fCentralityMethod.EndsWith("_MANUAL")) effcent=15.0;//integrated over multiplicity(so put any fixed value for each track so that practically means there is only one bin in multiplicity i.e. multiplicity intregated out )**************Important
   if (fSampleType=="pp_2_76" || fCentralityMethod.EndsWith("_MANUAL") || (fSampleType=="pp_7" && fPPVsMultUtils==kFALSE)) effcent=15.0;//integrated over multiplicity(so put any fixed value for each track so that practically means there is only one bin in multiplicity i.e. multiplicity intregated out )**************Important
 
  Double_t primmctruth[4] = {effcent, zVtxmc,partMC->Pt(), partMC->Eta()};
  if(ffillefficiency)
@@ -1843,7 +2199,7 @@ if(ffillhistQATruth)
     if (TMath::Abs(pdgtruth)==2212 || TMath::Abs(pdgtruth)==321) fTrackHistEfficiency[4]->Fill(primmctruth,0);//for  primary truth kaons+protons(4)
     if (TMath::Abs(pdgtruth)==211)  fTrackHistEfficiency[0]->Fill(primmctruth,0);//for pions
     if (TMath::Abs(pdgtruth)==321)  fTrackHistEfficiency[1]->Fill(primmctruth,0);//for kaons
-    if(TMath::Abs(pdgtruth)==2212)  fTrackHistEfficiency[2]->Fill(primmctruth,0);//for protons
+    if (TMath::Abs(pdgtruth)==2212)  fTrackHistEfficiency[2]->Fill(primmctruth,0);//for protons
   }
    
  Float_t effmatrixtruth=1.0;//In Truth MC, no case of efficiency correction so it should be always 1.0
@@ -1853,7 +2209,9 @@ if((partMC->Pt()>=fminPtAsso && partMC->Pt()<=fmaxPtAsso) || (partMC->Pt()>=fmin
     if(partMC->Charge()>0)   chargeval=1;
     if(partMC->Charge()<0)   chargeval=-1;
     if(chargeval==0) continue;
-LRCParticlePID* copy6 = new LRCParticlePID(particletypeTruth,chargeval,partMC->Pt(),partMC->Eta(), partMC->Phi(),effmatrixtruth);
+    const TBits *clustermap=0;
+    const TBits *sharemap=0;
+    LRCParticlePID* copy6 = new LRCParticlePID(particletypeTruth,Inv_mass,chargeval,partMC->Pt(),partMC->Eta(), partMC->Phi(),effmatrixtruth,clustermap,sharemap);
 //copy6->SetUniqueID(eventno * 100000 + TMath::Abs(partMC->GetLabel()));
  copy6->SetUniqueID(eventno * 100000 + (Int_t)nooftrackstruth);
  tracksMCtruth->Add(copy6);//************** TObjArray used for truth correlation function calculation
@@ -1862,7 +2220,6 @@ LRCParticlePID* copy6 = new LRCParticlePID(particletypeTruth,chargeval,partMC->P
 
 //*********************still in event loop
 
- if (fSampleType=="PbPb"){
    if (fRandomizeReactionPlane)//only for TRuth MC??
   {
     Double_t centralityDigits = cent_v0*1000. - (Int_t)(cent_v0*1000.);
@@ -1870,8 +2227,23 @@ LRCParticlePID* copy6 = new LRCParticlePID(particletypeTruth,chargeval,partMC->P
     AliInfo(Form("Shifting phi of all tracks by %f (digits %f)", angle, centralityDigits));
     ShiftTracks(tracksMCtruth, angle);  
   }
- }
+if(nooftrackstruth>0.0){
+if (fSampleType=="pPb" || fSampleType=="PbPb" || fPPVsMultUtils==kTRUE || fCentralityMethod == "MC_b") fCentralityCorrelation->Fill(cent_v0, nooftrackstruth);//only with unidentified tracks(i.e before PID selection);;;;;can be used to remove centrality outliers??????
 
+   AliGenEventHeader* eventHeader = header->GetCocktailHeader(0);  // get first MC header from either ESD/AOD (including cocktail header if available)
+      if (eventHeader)
+      {             
+AliCollisionGeometry* collGeometry = dynamic_cast <AliCollisionGeometry*> (eventHeader);
+ if(collGeometry){
+Float_t NpartProj= collGeometry-> ProjectileParticipants();
+Float_t NpartTarg = collGeometry->TargetParticipants();
+Float_t Npart= (NpartProj + NpartTarg);
+fNchNpartCorr->Fill(Npart,nooftrackstruth);
+         }
+      }    
+ }
  Float_t weghtval=1.0;
 
 if(nooftrackstruth>0.0 && ffilltrigIDassoIDMCTRUTH)
@@ -1910,14 +2282,41 @@ if(tracksMCtruth) delete tracksMCtruth;
 
 //now deal with reco tracks
 
+
+//Float_t bSign1=aod->GetHeader()->GetMagneticField() ;//used for reconstructed track dca cut
+   Float_t bSign1=aod->GetMagneticField() ;//used for reconstructed track dca cut
+
+
 //detrmine the ref mult in case of Reco(not required if we get centrality info from AliCentrality)
- if (fSampleType=="pp" && fCentralityMethod.EndsWith("_MANUAL")) cent_v0=refmultReco;
+ if (fSampleType=="pp_2_76" || fCentralityMethod.EndsWith("_MANUAL") || (fSampleType=="pp_7" && fPPVsMultUtils==kFALSE)) cent_v0=refmultReco;
  effcent=cent_v0;// This will be required for efficiency THn filling(specially in case of pp)
 
  if(fRequestEventPlane){
-   gReactionPlane = GetEventPlane(aod,kFALSE,cent_v0);//get the reconstructed event plane
+   gReactionPlane = GetEventPlane((AliVEvent*)aod,kFALSE,cent_v0);//get the reconstructed event plane
     if(gReactionPlane==999.) return;
  }
+
+
+  TExMap *trackMap = new TExMap();
+
+// --- track loop for mapping matrix
+ if(fFilterBit==128)
+   {
+ for (Int_t itrk = 0; itrk < aod->GetNumberOfTracks(); itrk++) 
+{ //track loop starts for TObjArray(containing track and event information) filling; used for correlation function calculation 
+  AliAODTrack* track = dynamic_cast<AliAODTrack*>(aod->GetTrack(itrk));
+  if (!track) continue;
+  Int_t tracktype=ClassifyTrack(track,trkVtx,bSign1,kFALSE);//don't fill the histos here
+  if(tracktype!=1) continue; 
+
+  if(!track) continue;//for safety
+
+   Int_t gid = track->GetID();
+   trackMap->Add(gid,itrk);
+ }//track looop ends
+   }
+
+
   
    //TObjArray* tracksUNID=0;
    TObjArray* tracksUNID = new TObjArray;
@@ -1928,8 +2327,9 @@ if(tracksMCtruth) delete tracksMCtruth;
    tracksID->SetOwner(kTRUE);
 
 
-   Float_t bSign1=aod->GetHeader()->GetMagneticField() ;//used for reconstructed track dca cut
-
+//get the selected v0 particle TObjArray
+   TObjArray* tracksIDV0 = new TObjArray;
+   tracksIDV0->SetOwner(kTRUE);
 
    Double_t trackscount=0.0;
 // loop over reconstructed tracks 
@@ -1995,6 +2395,20 @@ isduplicate2=kTRUE;
 {
   if(!track) continue;//for safety
  //accepted all(primaries+secondary) reconstructed tracks(pt 0.2 to 10.0,,eta -0.8 to 0.8)
+
+ if(fV0TrigCorr){ 
+if(IsTrackFromV0(aod,track)) continue;// remove auto correlation
+  }
+
+  AliAODTrack *PIDtrack=track;//for PID purpose, mainly important for TPC only tracks
+
+  if(fFilterBit==128){
+Int_t gid1 = track->GetID();
+//if(gid1>=0) PIDtrack = track;
+ PIDtrack =(AliAODTrack*) aod->GetTrack(trackMap->GetValue(-1-gid1));
+if(!PIDtrack) continue;//for safety; so that each of the TPC only tracks have corresponding global track along with it
+  }
+
   trackscount++;
 
 //check for eta , phi holes
@@ -2009,7 +2423,7 @@ isduplicate2=kTRUE;
  Float_t effmatrix=1.;
 
 // -- Fill THnSparse for efficiency calculation
- if (fSampleType=="pp" && fCentralityMethod.EndsWith("_MANUAL")) effcent=15.0;//integrated over multiplicity(so put any fixed value for each track so that practically means there is only one bin in multiplicity i.e. multiplicity intregated out )**************Important
+ if (fSampleType=="pp_2_76" || fCentralityMethod.EndsWith("_MANUAL") || (fSampleType=="pp_7" && fPPVsMultUtils==kFALSE)) effcent=15.0;//integrated over multiplicity(so put any fixed value for each track so that practically means there is only one bin in multiplicity i.e. multiplicity intregated out )**************Important
  //NOTE:: this will be used for fillinfg THnSparse of efficiency & also to get the the track by track eff. factor on the fly(only in case of pp)
 
  //Clone & Reduce track list(TObjArray) for unidentified particles
@@ -2021,7 +2435,7 @@ if((track->Pt()>=fminPtAsso && track->Pt()<=fmaxPtAsso) || (track->Pt()>=fminPtT
     if(chargeval==0) continue;
  if (fapplyTrigefficiency || fapplyAssoefficiency)//get the trackingefficiency x contamination factor for unidentified particles
    effmatrix=GetTrackbyTrackeffvalue(track,effcent,zvtx,particletypeMC);
  LRCParticlePID* copy = new LRCParticlePID(particletypeMC,chargeval,track->Pt(),track->Eta(), track->Phi(),effmatrix);
LRCParticlePID* copy = new LRCParticlePID(particletypeMC,Inv_mass,chargeval,track->Pt(),track->Eta(), track->Phi(),effmatrix,track->GetTPCClusterMapPtr(),track->GetTPCSharedMapPtr());
    copy->SetUniqueID(eventno * 100000 +(Int_t)trackscount);
    tracksUNID->Add(copy);//track information Storage for UNID correlation function(tracks that pass the filterbit & kinematic cuts only)
   }
@@ -2048,25 +2462,11 @@ fTrackHistEfficiency[5]->Fill(allrecomatchedpid,2);//for allreco matched
  }
  }
 
- //now start the particle identification process:)
-
-Float_t dEdx = track->GetTPCsignal();
- fHistoTPCdEdx->Fill(track->Pt(), dEdx);
-
- if(HasTOFPID(track))
-{
-Double_t beta = GetBeta(track);
-fHistoTOFbeta->Fill(track->Pt(), beta);
- }
-
-//do track identification(nsigma method)
-  particletypeMC=GetParticle(track,fFIllPIDQAHistos);//******************************problem is here
-
 switch(TMath::Abs(pdgCode)){
   case 2212:
     if(fFIllPIDQAHistos){
       for(Int_t ipid=0;ipid<=NSigmaPIDType;ipid++){
-       if((ipid!=NSigmaTPC) && (!HasTOFPID(track)))continue;//not filling TOF and combined if no TOF PID
+       if((ipid!=NSigmaTPC) && (!HasTOFPID(PIDtrack)))continue;//not filling TOF and combined if no TOF PID
        TH2F *h=GetHistogram2D(Form("NSigmaMC_%d_%d",SpProton,ipid));
        h->Fill(track->Pt(),fnsigmas[SpProton][ipid]);
       }
@@ -2075,7 +2475,7 @@ switch(TMath::Abs(pdgCode)){
   case 321:
     if(fFIllPIDQAHistos){
       for(Int_t ipid=0;ipid<=NSigmaPIDType;ipid++){
-       if((ipid!=NSigmaTPC) && (!HasTOFPID(track)))continue;//not filling TOF and combined if no TOF PID
+       if((ipid!=NSigmaTPC) && (!HasTOFPID(PIDtrack)))continue;//not filling TOF and combined if no TOF PID
        TH2F *h=GetHistogram2D(Form("NSigmaMC_%d_%d",SpKaon,ipid));
        h->Fill(track->Pt(),fnsigmas[SpKaon][ipid]);
       }
@@ -2084,7 +2484,7 @@ switch(TMath::Abs(pdgCode)){
   case 211:
     if(fFIllPIDQAHistos){
       for(Int_t ipid=0;ipid<=NSigmaPIDType;ipid++){
-       if((ipid!=NSigmaTPC) && (!HasTOFPID(track)))continue;//not filling TOF and combined if no TOF PID
+       if((ipid!=NSigmaTPC) && (!HasTOFPID(PIDtrack)))continue;//not filling TOF and combined if no TOF PID
        TH2F *h=GetHistogram2D(Form("NSigmaMC_%d_%d",SpPion,ipid));
        h->Fill(track->Pt(),fnsigmas[SpPion][ipid]);
       }
@@ -2093,8 +2493,26 @@ switch(TMath::Abs(pdgCode)){
   }
 
 
+ //now start the particle identification process:)
+
+Float_t dEdx = PIDtrack->GetTPCsignal();
+ fHistoTPCdEdx->Fill(track->Pt(), dEdx);
+
+ if(HasTOFPID(PIDtrack))
+{
+Double_t beta = GetBeta(PIDtrack);
+fHistoTOFbeta->Fill(track->Pt(), beta);
+ }
+
+ //remove the tracks which don't have proper TOF response-otherwise the misIDentification rate values will be wrong
+if(fRequestTOFPID && track->Pt()>fPtTOFPIDmin && (!HasTOFPID(PIDtrack)) ) continue;
+
+//do track identification(nsigma method)
+  particletypeMC=GetParticle(PIDtrack,fFIllPIDQAHistos);//******************************problem is here
+
 //2-d TPCTOF map(for each Pt interval)
-  if(HasTOFPID(track)){
+  if(HasTOFPID(PIDtrack)){
  fTPCTOFPion3d->Fill(track->Pt(),fnsigmas[SpPion][NSigmaTOF],fnsigmas[SpPion][NSigmaTPC]);
  fTPCTOFKaon3d->Fill(track->Pt(),fnsigmas[SpKaon][NSigmaTOF],fnsigmas[SpKaon][NSigmaTPC]);
  fTPCTOFProton3d->Fill(track->Pt(),fnsigmas[SpProton][NSigmaTOF],fnsigmas[SpProton][NSigmaTPC]); 
@@ -2123,6 +2541,38 @@ if (particletypeMC==SpProton)
   }
     }
 
+ //fill tracking efficiency
+ if(ffillefficiency)
+   {
+ if(particletypeMC==SpPion || particletypeMC==SpKaon)
+   {
+     if(TMath::Abs(pdgCode)==211 ||  TMath::Abs(pdgCode)==321) {
+       fTrackHistEfficiency[3]->Fill(allrecomatchedpid,4);//for mesons
+ if (((AliAODMCParticle*)recomatched)->IsPhysicalPrimary())  fTrackHistEfficiency[3]->Fill(allrecomatchedpid,3);//for mesons
+     }
+   }
+ if(particletypeMC==SpKaon || particletypeMC==SpProton)
+   {
+     if(TMath::Abs(pdgCode)==321 ||  TMath::Abs(pdgCode)==2212) {
+       fTrackHistEfficiency[4]->Fill(allrecomatchedpid,4);//for kaons+protons
+ if (((AliAODMCParticle*)recomatched)->IsPhysicalPrimary())  fTrackHistEfficiency[4]->Fill(allrecomatchedpid,3);
+     }
+   }
+ if(particletypeMC==SpPion && TMath::Abs(pdgCode)==211)  {
+   fTrackHistEfficiency[0]->Fill(allrecomatchedpid,4);//for pions
+ if (((AliAODMCParticle*)recomatched)->IsPhysicalPrimary())  fTrackHistEfficiency[0]->Fill(allrecomatchedpid,3);
+ } 
+ if(particletypeMC==SpKaon && TMath::Abs(pdgCode)==321) {
+   fTrackHistEfficiency[1]->Fill(allrecomatchedpid,4);//for kaons
+if (((AliAODMCParticle*)recomatched)->IsPhysicalPrimary())  fTrackHistEfficiency[1]->Fill(allrecomatchedpid,3);
+ }
+ if(particletypeMC==SpProton && TMath::Abs(pdgCode)==2212){
+   fTrackHistEfficiency[2]->Fill(allrecomatchedpid,4);//for protons
+if (((AliAODMCParticle*)recomatched)->IsPhysicalPrimary())  fTrackHistEfficiency[2]->Fill(allrecomatchedpid,3);
+ }
+   }
+
+
  //for misidentification fraction calculation(do it with tuneonPID)
  if(particletypeMC==SpPion )
    {
@@ -2145,7 +2595,7 @@ if(particletypeMC==SpKaon )
      if(TMath::Abs(pdgCode)==2212) fProtoncont->Fill(5.,track->Pt());
      if(TMath::Abs(pdgCode)!=211 && TMath::Abs(pdgCode)!=321 && TMath::Abs(pdgCode)!=2212) fProtoncont->Fill(7.,track->Pt());
    }
- if(particletypeMC==SpUndefined )
+ if(particletypeMC==SpUndefined )//these undefined are not due to absence of proper TOF response, rather due to the PID method only
    {
      if(TMath::Abs(pdgCode)==211) fUNIDcont->Fill(1.,track->Pt());
      if(TMath::Abs(pdgCode)==321) fUNIDcont->Fill(3.,track->Pt());
@@ -2159,37 +2609,6 @@ if(particletypeMC==SpKaon )
       FillPIDEventPlane(cent_v0,particletypeMC,track->Phi(),gReactionPlane);
     }
 
- //fill tracking efficiency
- if(ffillefficiency)
-   {
- if(particletypeMC==SpPion || particletypeMC==SpKaon)
-   {
-     if(TMath::Abs(pdgCode)==211 ||  TMath::Abs(pdgCode)==321) {
-       fTrackHistEfficiency[3]->Fill(allrecomatchedpid,4);//for mesons
- if (((AliAODMCParticle*)recomatched)->IsPhysicalPrimary())  fTrackHistEfficiency[3]->Fill(allrecomatchedpid,3);//for mesons
-     }
-   }
- if(particletypeMC==SpKaon || particletypeMC==SpProton)
-   {
-     if(TMath::Abs(pdgCode)==321 ||  TMath::Abs(pdgCode)==2212) {
-       fTrackHistEfficiency[4]->Fill(allrecomatchedpid,4);//for kaons+protons
- if (((AliAODMCParticle*)recomatched)->IsPhysicalPrimary())  fTrackHistEfficiency[4]->Fill(allrecomatchedpid,3);
-     }
-   }
- if(particletypeMC==SpPion && TMath::Abs(pdgCode)==211)  {
-   fTrackHistEfficiency[0]->Fill(allrecomatchedpid,4);//for pions
- if (((AliAODMCParticle*)recomatched)->IsPhysicalPrimary())  fTrackHistEfficiency[0]->Fill(allrecomatchedpid,3);
- } 
- if(particletypeMC==SpKaon && TMath::Abs(pdgCode)==321) {
-   fTrackHistEfficiency[1]->Fill(allrecomatchedpid,4);//for kaons
-if (((AliAODMCParticle*)recomatched)->IsPhysicalPrimary())  fTrackHistEfficiency[1]->Fill(allrecomatchedpid,3);
- }
- if(particletypeMC==SpProton && TMath::Abs(pdgCode)==2212){
-   fTrackHistEfficiency[2]->Fill(allrecomatchedpid,4);//for protons
-if (((AliAODMCParticle*)recomatched)->IsPhysicalPrimary())  fTrackHistEfficiency[2]->Fill(allrecomatchedpid,3);
- }
-   }
-
 if((track->Pt()>=fminPtAsso && track->Pt()<=fmaxPtAsso) || (track->Pt()>=fminPtTrig && track->Pt()<=fmaxPtTrig))//to reduce memory consumption in pool
   {
     Short_t chargeval=0;
@@ -2198,7 +2617,7 @@ if((track->Pt()>=fminPtAsso && track->Pt()<=fmaxPtAsso) || (track->Pt()>=fminPtT
     if(chargeval==0) continue;
 if (fapplyTrigefficiency || fapplyAssoefficiency)
     effmatrix=GetTrackbyTrackeffvalue(track,effcent,zvtx,particletypeMC);//get the tracking eff x TOF matching eff x PID eff x contamination factor for identified particles 
   LRCParticlePID* copy1 = new LRCParticlePID(particletypeMC,chargeval,track->Pt(),track->Eta(), track->Phi(),effmatrix);
LRCParticlePID* copy1 = new LRCParticlePID(particletypeMC,Inv_mass,chargeval,track->Pt(),track->Eta(), track->Phi(),effmatrix,track->GetTPCClusterMapPtr(),track->GetTPCSharedMapPtr());
     copy1->SetUniqueID(eventno * 100000 + (Int_t)trackscount);
     tracksID->Add(copy1);
   }
@@ -2214,7 +2633,7 @@ if(trackscount>0.0)
 //fill the centrality/multiplicity distribution of the selected events
  fhistcentrality->Fill(cent_v0);//*********************************WARNING::binning of cent_v0 is different for pp and pPb/PbPb case
 
- if (fSampleType=="pPb" || fSampleType=="PbPb") fCentralityCorrelation->Fill(cent_v0, trackscount);//only with unidentified tracks(i.e before PID selection);;;;;can be used to remove centrality outliers??????
+ if (fSampleType=="pPb" || fSampleType=="PbPb" || fPPVsMultUtils==kTRUE || fCentralityMethod == "MC_b") fCentralityCorrelation->Fill(cent_v0, trackscount);//only with unidentified tracks(i.e before PID selection);;;;;can be used to remove centrality outliers??????
 
 //count selected events having centrality betn 0-100%
  fEventCounter->Fill(13);
@@ -2239,6 +2658,11 @@ for(Int_t i=0;i<tracksID->GetEntriesFast();i++)
  if (ismesontrig) fEventnomeson->Fill(cent_v0,zvtx);
   }
 
+
+ if(fV0TrigCorr){
+ tracksIDV0=GetV0Particles((AliVEvent*) aod, cent_v0);
+ if(tracksIDV0->GetEntriesFast()<=0) return;
+ }
  //same event delte-eta, delta-phi plot
 if(tracksUNID && tracksUNID->GetEntriesFast()>0)//hadron triggered correlation
   {//same event calculation starts
@@ -2248,7 +2672,11 @@ if(tracksUNID && tracksUNID->GetEntriesFast()>0)//hadron triggered correlation
 
 if(tracksID && tracksID->GetEntriesFast()>0)//ID triggered correlation
   {//same event calculation starts
-    if(tracksUNID && tracksUNID->GetEntriesFast()>0 && ffilltrigIDassoUNID)  Fillcorrelation(gReactionPlane,tracksID,tracksUNID,cent_v0,zvtx,weghtval,kFALSE,bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kFALSE,"trigIDassoUNID");//mixcase=kFALSE (ID-hadron correlation)
+    if(tracksUNID && tracksUNID->GetEntriesFast()>0 && ffilltrigIDassoUNID) {
+      if(fV0TrigCorr) Fillcorrelation(gReactionPlane,tracksIDV0,tracksUNID,cent_v0,zvtx,weghtval,kFALSE,bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kFALSE,"trigIDassoUNID");//mixcase=kFALSE (ID-hadron correlation)
+      
+ else Fillcorrelation(gReactionPlane,tracksID,tracksUNID,cent_v0,zvtx,weghtval,kFALSE,bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kFALSE,"trigIDassoUNID");//mixcase=kFALSE (ID-hadron correlation)
+    }
     if(ffilltrigIDassoID)   Fillcorrelation(gReactionPlane,tracksID,0,cent_v0,zvtx,weghtval,kFALSE,bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kFALSE,"trigIDassoID");//mixcase=kFALSE (ID-ID correlation)
   }
 
@@ -2266,7 +2694,11 @@ if (pool && pool->IsReady())
   if(ffilltrigassoUNID && tracksUNID && tracksUNID->GetEntriesFast()>0)//*******************************hadron trggered mixing
     Fillcorrelation(gReactionPlane,tracksUNID,bgTracks,cent_v0,zvtx,nmix1,(jMix == 0),bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kTRUE,"trigassoUNID");//mixcase=kTRUE
  if(ffilltrigIDassoUNID && tracksID && tracksID->GetEntriesFast()>0)//***********************************ID trggered mixing
-   Fillcorrelation(gReactionPlane,tracksID,bgTracks,cent_v0,zvtx,nmix1,(jMix == 0),bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kTRUE,"trigIDassoUNID");//mixcase=kTRUE 
+   {
+     if(fV0TrigCorr) Fillcorrelation(gReactionPlane,tracksIDV0,bgTracks,cent_v0,zvtx,nmix1,(jMix == 0),bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kTRUE,"trigIDassoUNID");//mixcase=kTRUE 
+     
+ else  Fillcorrelation(gReactionPlane,tracksID,bgTracks,cent_v0,zvtx,nmix1,(jMix == 0),bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kTRUE,"trigIDassoUNID");//mixcase=kTRUE 
+   }
    }// pool event loop ends mixing case
 
 } //if pool->IsReady() condition ends mixing case
@@ -2306,9 +2738,14 @@ fEventCounter->Fill(15);
 if(tracksUNID)  delete tracksUNID;
 
 if(tracksID) delete tracksID;
+if(fV0TrigCorr) {
+  if(tracksIDV0) delete tracksIDV0;
+  }
+
 
+}//AOD || MCAOD condition
 
-PostData(1, fOutput);
+//still in the main event loop
 
 }
 //________________________________________________________________________
@@ -2323,11 +2760,14 @@ void AliTwoParticlePIDCorr::doAODevent()
     AliError("Cannot get the AOD event");
     return;
   }
+  Double_t Inv_mass=0.0;
 
 // count all events   
   fEventCounter->Fill(1);
 
-if (!fPID) return;//this should be available with each event even if we don't do PID selection
+   fPID = ((AliInputEventHandler*)(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()))->GetPIDResponse();
+    if (!fPID) AliFatal("This Task needs the PID response attached to the inputHandler");
+    //if (!fPID) return;//this should be available with each event even if we don't do PID selection
 
     fgPsi2v0a=999.;
     fgPsi2v0c=999.;
@@ -2344,26 +2784,48 @@ if (!fPID) return;//this should be available with each event even if we don't do
 
 
  bSign = (aod->GetMagneticField() > 0) ? 1 : -1;//for two track efficiency cut in correlation function calculation
- Float_t bSign1=aod->GetHeader()->GetMagneticField() ;//for dca cut in ClassifyTrack(), i.e in track loop
+ Float_t bSign1=aod->GetMagneticField() ;//for dca cut in ClassifyTrack(), i.e in track loop
 
 
 // check event cuts and fill event histograms and return the centrality or reference multiplicity value
- if((cent_v0 = GetAcceptedEventMultiplicity(aod,kFALSE)) < 0){ 
+ if((cent_v0 = GetAcceptedEventMultiplicity((AliVEvent*)aod,kFALSE)) < 0){ 
     return;
   }
-  
+ effcent=cent_v0;//required for efficiency correction case********Extremely Important
   //get the event plane in case of PbPb
     if(fRequestEventPlane){
-      gReactionPlane = GetEventPlane(aod,kFALSE,cent_v0);
+      gReactionPlane = GetEventPlane((AliVEvent*)aod,kFALSE,cent_v0);
     if(gReactionPlane==999.) return;
     }    
-  
+    
+
+TExMap *trackMap = new TExMap();
+// --- track loop for mapping matrix
+ if(fFilterBit==128)
+   {
+ for (Int_t itrk = 0; itrk < aod->GetNumberOfTracks(); itrk++) 
+{ //track loop starts for TObjArray(containing track and event information) filling; used for correlation function calculation 
+  AliAODTrack* track = dynamic_cast<AliAODTrack*>(aod->GetTrack(itrk));
+  if (!track) continue;
+  Int_t tracktype=ClassifyTrack(track,trkVtx,bSign1,kFALSE);//don't fill the histos here
+  if(tracktype!=1) continue; 
+
+  if(!track) continue;//for safety
+
+   Int_t gid = track->GetID();
+   trackMap->Add(gid,itrk);
+ }//track looop ends
+   }
+
    TObjArray*  tracksUNID= new TObjArray;//track info before doing PID
    tracksUNID->SetOwner(kTRUE);  // IMPORTANT!
 
    TObjArray* tracksID= new TObjArray;//only pions, kaons,protons i.e. after doing the PID selection
    tracksID->SetOwner(kTRUE);  // IMPORTANT!
  
+   //get the selected v0 particle TObjArray
+   TObjArray*  tracksIDV0= new TObjArray;
+   tracksIDV0->SetOwner(kTRUE);  // IMPORTANT!
     
     eventno++;
 
@@ -2382,6 +2844,18 @@ if (!fPID) return;//this should be available with each event even if we don't do
 
   if(!track) continue;//for safety
 
+  if(fV0TrigCorr){ 
+if(IsTrackFromV0(aod,track)) continue;// remove auto correlation
+  }
+AliAODTrack *PIDtrack=track;//for PID purpose, mainly important for TPC only tracks
+
+  if(fFilterBit==128){
+Int_t gid1 = track->GetID();
+//if(gid1>=0) PIDtrack = track;
+ PIDtrack =(AliAODTrack*) aod->GetTrack(trackMap->GetValue(-1-gid1));
+if(!PIDtrack) continue;//for safety; so that each of the TPC only tracks have corresponding global track along with it
+  }
+
 //check for eta , phi holes
  fEtaSpectrasso->Fill(track->Eta(),track->Pt());
  fphiSpectraasso->Fill(track->Phi(),track->Pt());
@@ -2400,7 +2874,7 @@ if (!fPID) return;//this should be available with each event even if we don't do
  if(track->Pt()>=fmaxPtTrig) fTrigPtJet=kTRUE;
 
 
- if (fSampleType=="pp") effcent=15.0;//integrated over multiplicity [i.e each track has multiplicity 15.0](so put any fixed value for each track so that practically means there is only one bin in multiplicityi.e multiplicity intregated out )**************Important for efficiency related issues
+if (fSampleType=="pp_2_76" || fCentralityMethod.EndsWith("_MANUAL") || (fSampleType=="pp_7" && fPPVsMultUtils==kFALSE)) effcent=15.0;//integrated over multiplicity [i.e each track has multiplicity 15.0](so put any fixed value for each track so that practically means there is only one bin in multiplicityi.e multiplicity intregated out )**************Important for efficiency related issues
 
 
  //to reduce memory consumption in pool
@@ -2413,7 +2887,7 @@ if (!fPID) return;//this should be available with each event even if we don't do
     if(chargeval==0) continue;
  if (fapplyTrigefficiency || fapplyAssoefficiency)//get the trackingefficiency x contamination factor for unidentified particles
    effmatrix=GetTrackbyTrackeffvalue(track,effcent,zvtx,particletype);
- LRCParticlePID* copy = new LRCParticlePID(particletype,chargeval,track->Pt(),track->Eta(), track->Phi(),effmatrix);
+ LRCParticlePID* copy = new LRCParticlePID(particletype,Inv_mass,chargeval,track->Pt(),track->Eta(), track->Phi(),effmatrix,track->GetTPCClusterMapPtr(),track->GetTPCSharedMapPtr());
   copy->SetUniqueID(eventno * 100000 + (Int_t)trackscount);
   tracksUNID->Add(copy);//track information Storage for UNID correlation function(tracks that pass the filterbit & kinematic cuts only)
   }
@@ -2422,23 +2896,24 @@ if (!fPID) return;//this should be available with each event even if we don't do
 
 //track passing filterbit 768 have proper TPC response,or need to be checked explicitly before doing PID????
 
-  Float_t dEdx = track->GetTPCsignal();
+  Float_t dEdx = PIDtrack->GetTPCsignal();
   fHistoTPCdEdx->Fill(track->Pt(), dEdx);
 
   //fill beta vs Pt plots only for tracks having proper TOF response(much less tracks compared to the no. that pass the filterbit & kinematic cuts)
- if(HasTOFPID(track))
+ if(HasTOFPID(PIDtrack))
 {
-  Double_t beta = GetBeta(track);
+  Double_t beta = GetBeta(PIDtrack);
   fHistoTOFbeta->Fill(track->Pt(), beta);
  }
   
-
+ //remove the tracks which don't have proper TOF response-otherwise the misIDentification rate values will be wrong(in MC)
+if(fRequestTOFPID && track->Pt()>fPtTOFPIDmin && (!HasTOFPID(PIDtrack)) ) continue;
 //track identification(using nsigma method)
-     particletype=GetParticle(track,fFIllPIDQAHistos);//*******************************change may be required(It should return only pion,kaon, proton and Spundefined; NOT unidentifed***************be careful)
-
+     particletype=GetParticle(PIDtrack,fFIllPIDQAHistos);//*******************************change may be required(It should return only pion,kaon, proton and Spundefined; NOT unidentifed***************be careful)
 
 //2-d TPCTOF map(for each Pt interval)
-  if(HasTOFPID(track)){
+  if(HasTOFPID(PIDtrack)){
  fTPCTOFPion3d->Fill(track->Pt(),fnsigmas[SpPion][NSigmaTOF],fnsigmas[SpPion][NSigmaTPC]);
  fTPCTOFKaon3d->Fill(track->Pt(),fnsigmas[SpKaon][NSigmaTOF],fnsigmas[SpKaon][NSigmaTPC]);
  fTPCTOFProton3d->Fill(track->Pt(),fnsigmas[SpProton][NSigmaTOF],fnsigmas[SpProton][NSigmaTPC]); 
@@ -2483,7 +2958,7 @@ if (particletype==SpProton)
     if(chargeval==0) continue;
 if (fapplyTrigefficiency || fapplyAssoefficiency)
   effmatrix=GetTrackbyTrackeffvalue(track,effcent,zvtx,particletype);//get the tracking eff x TOF matching eff x PID eff x contamination factor for identified particles; Bool_t mesoneffrequired=kFALSE
- LRCParticlePID* copy1 = new LRCParticlePID(particletype,chargeval,track->Pt(),track->Eta(), track->Phi(),effmatrix);
+ LRCParticlePID* copy1 = new LRCParticlePID(particletype,Inv_mass,chargeval,track->Pt(),track->Eta(), track->Phi(),effmatrix,track->GetTPCClusterMapPtr(),track->GetTPCSharedMapPtr());
     copy1->SetUniqueID(eventno * 100000 + (Int_t)trackscount);
     tracksID->Add(copy1);
   }
@@ -2506,7 +2981,7 @@ if(trackscount<1.0){
 //fill the centrality/multiplicity distribution of the selected events
  fhistcentrality->Fill(cent_v0);//*********************************WARNING::binning of cent_v0 is different for pp and pPb/PbPb case
 
-if(fSampleType=="pPb" || fSampleType=="PbPb") fCentralityCorrelation->Fill(cent_v0, trackscount);//only with unidentified tracks(i.e before PID selection);;;;;can be used to remove centrality outliers??????
+if(fSampleType=="pPb" || fSampleType=="PbPb" || fPPVsMultUtils==kTRUE) fCentralityCorrelation->Fill(cent_v0, trackscount);//only with unidentified tracks(i.e before PID selection);;;;;can be used to remove centrality outliers??????
 
 //count selected events having centrality betn 0-100%
  fEventCounter->Fill(13);
@@ -2531,18 +3006,26 @@ for(Int_t i=0;i<tracksID->GetEntriesFast();i++)
  if (ismesontrig) fEventnomeson->Fill(cent_v0,zvtx);
   }
 
+//Get the TObjArray of V0 particles
+ if(fV0TrigCorr){
+ tracksIDV0=GetV0Particles((AliVEvent*) aod,cent_v0);
+ if(tracksIDV0->GetEntriesFast()<=0) return;
+ }
 
 //same event delta-eta-deltaphi plot 
-
 if(tracksUNID && tracksUNID->GetEntriesFast()>0)//hadron triggered correlation
   {//same event calculation starts
     if(ffilltrigassoUNID) Fillcorrelation(gReactionPlane,tracksUNID,0,cent_v0,zvtx,weightval,kFALSE,bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kFALSE,"trigassoUNID");//mixcase=kFALSE (hadron-hadron correlation)
-    if(tracksID && tracksID->GetEntriesFast()>0 && ffilltrigUNIDassoID)  Fillcorrelation(gReactionPlane,tracksUNID,tracksID,cent_v0,zvtx,weightval,kFALSE,bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kFALSE,"trigUNIDassoID");//mixcase=kFALSE (hadron-ID correlation)
+    if(tracksID && tracksID->GetEntriesFast()>0 && ffilltrigUNIDassoID) Fillcorrelation(gReactionPlane,tracksUNID,tracksID,cent_v0,zvtx,weightval,kFALSE,bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kFALSE,"trigUNIDassoID");//mixcase=kFALSE (hadron-ID correlation)
+    
   }
 
 if(tracksID && tracksID->GetEntriesFast()>0)//ID triggered correlation
   {//same event calculation starts
-    if(tracksUNID && tracksUNID->GetEntriesFast()>0 && ffilltrigIDassoUNID)  Fillcorrelation(gReactionPlane,tracksID,tracksUNID,cent_v0,zvtx,weightval,kFALSE,bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kFALSE,"trigIDassoUNID");//mixcase=kFALSE (ID-hadron correlation)
+    if(tracksUNID && tracksUNID->GetEntriesFast()>0 && ffilltrigIDassoUNID){
+if(fV0TrigCorr)  Fillcorrelation(gReactionPlane,tracksIDV0,tracksUNID,cent_v0,zvtx,weightval,kFALSE,bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kFALSE,"trigIDassoUNID");//mixcase=kFALSE (ID-hadron correlation)
+else  Fillcorrelation(gReactionPlane,tracksID,tracksUNID,cent_v0,zvtx,weightval,kFALSE,bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kFALSE,"trigIDassoUNID");//mixcase=kFALSE (ID-hadron correlation)
+    }
     if(ffilltrigIDassoID)   Fillcorrelation(gReactionPlane,tracksID,0,cent_v0,zvtx,weightval,kFALSE,bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kFALSE,"trigIDassoID");//mixcase=kFALSE (ID-ID correlation)
   }
 
@@ -2562,7 +3045,10 @@ if (pool && pool->IsReady())
   if(ffilltrigassoUNID && tracksUNID && tracksUNID->GetEntriesFast()>0)//*******************************hadron trggered mixing
     Fillcorrelation(gReactionPlane,tracksUNID,bgTracks,cent_v0,zvtx,nmix1,(jMix == 0),bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kTRUE,"trigassoUNID");//mixcase=kTRUE
  if(ffilltrigIDassoUNID && tracksID && tracksID->GetEntriesFast()>0)//***********************************ID trggered mixing
-   Fillcorrelation(gReactionPlane,tracksID,bgTracks,cent_v0,zvtx,nmix1,(jMix == 0),bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kTRUE,"trigIDassoUNID");//mixcase=kTRUE 
+   {
+if(fV0TrigCorr)   Fillcorrelation(gReactionPlane,tracksIDV0,bgTracks,cent_v0,zvtx,nmix1,(jMix == 0),bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kTRUE,"trigIDassoUNID");//mixcase=kTRUE
+else  Fillcorrelation(gReactionPlane,tracksID,bgTracks,cent_v0,zvtx,nmix1,(jMix == 0),bSign,fPtOrderDataReco,ftwoTrackEfficiencyCutDataReco,kTRUE,"trigIDassoUNID");//mixcase=kTRUE
+   } 
    }// pool event loop ends mixing case
 } //if pool->IsReady() condition ends mixing case
  if(tracksUNID) {
@@ -2606,10 +3092,12 @@ if(tracksUNID)  delete tracksUNID;
 
 if(tracksID) delete tracksID;
 
+if(fV0TrigCorr) {
+  if(tracksIDV0) delete tracksIDV0;
+  }
 
-PostData(1, fOutput);
-
-} // *************************event loop ends******************************************//_______________________________________________________________________
+} // *************************event loop ends******************************************
+//_______________________________________________________________________
 TObjArray* AliTwoParticlePIDCorr::CloneAndReduceTrackList(TObjArray* tracks)
 {
   // clones a track list by using AliDPhiBasicParticle which uses much less memory (used for event mixing)
@@ -2620,7 +3108,7 @@ TObjArray* AliTwoParticlePIDCorr::CloneAndReduceTrackList(TObjArray* tracks)
   for (Int_t i=0; i<tracks->GetEntriesFast(); i++)
   {
     LRCParticlePID* particle = (LRCParticlePID*) tracks->UncheckedAt(i);
-    LRCParticlePID* copy100 = new LRCParticlePID(particle->getparticle(),particle->Charge(), particle->Pt(),particle->Eta(), particle->Phi(), particle->geteffcorrectionval());
+    LRCParticlePID* copy100 = new LRCParticlePID(particle->getparticle(),particle->GetInvMass(),particle->Charge(), particle->Pt(),particle->Eta(), particle->Phi(), particle->geteffcorrectionval(),particle->GetTPCPadMap(),particle->GetTPCSharedMap());
     copy100->SetUniqueID(particle->GetUniqueID());
     tracksClone->Add(copy100);
   }
@@ -2764,8 +3252,13 @@ for(Int_t i=0;i<trackstrig->GetEntriesFast();i++)
       Float_t trigpt=trig->Pt();
     //to avoid overflow qnd underflow
       if(trigpt<fminPtTrig || trigpt>fmaxPtTrig) continue;
+      Double_t ParticlePID_InvMass=0.0;
+      if(fV0TrigCorr) ParticlePID_InvMass=trig->GetInvMass();
+      else{
       Int_t particlepidtrig=trig->getparticle();
-      if(fTriggerSpeciesSelection){ if (particlepidtrig!=fTriggerSpecies) continue;}
+      ParticlePID_InvMass=(Double_t) particlepidtrig;
+      if(fTriggerSpeciesSelection){ if (particlepidtrig!=fTriggerSpecies) continue;}//***********************************forks,lam.Alam their PID numbers have no meaning, only their Inv_mass will be stored
+      }
 
       Float_t trigeta=trig->Eta();
 
@@ -2840,19 +3333,19 @@ if(fRequestEventPlane){
 
       if(fRequestEventPlane){
       trigval[3] = gPsiMinusPhiBin;
-      if(fcontainPIDtrig && SetChargeAxis==0) trigval[4] = particlepidtrig;
+      if(fcontainPIDtrig && SetChargeAxis==0) trigval[4] = ParticlePID_InvMass;
       if(!fcontainPIDtrig && SetChargeAxis==2) trigval[4] = trig->Charge();
       if(fcontainPIDtrig && SetChargeAxis==2) {
-      trigval[4] = particlepidtrig;
+      trigval[4] = ParticlePID_InvMass;
       trigval[5] = trig->Charge();
        }
       }
 
   if(!fRequestEventPlane){
-      if(fcontainPIDtrig && SetChargeAxis==0) trigval[3] = particlepidtrig;
+      if(fcontainPIDtrig && SetChargeAxis==0) trigval[3] = ParticlePID_InvMass;
       if(!fcontainPIDtrig && SetChargeAxis==2) trigval[3] = trig->Charge();
       if(fcontainPIDtrig && SetChargeAxis==2) {
-      trigval[3] = particlepidtrig;
+      trigval[3] = ParticlePID_InvMass;
       trigval[4] = trig->Charge();
        }
       }
@@ -2935,7 +3428,7 @@ if(mixcase==kTRUE && firstTime)   fTHnTrigcountMCTruthPrim->Fill(trigval,1,1.0/t
 
   if(!tracksasso && j==i) continue;
 
-   // check if both particles point to the same element (does not occur for mixed events, but if subsets are mixed within the same event,i.e. both Trig and asso TObjArray belongs to the same Pi range but say Trig is Unidentified but asso is identified then the serial no. wise particles are not same and and j==i doesn't aplly)
+   // check if both particles point to the same element (does not occur for mixed events, but if subsets are mixed within the same event,i.e. both Trig and asso TObjArray belongs to the same Pt range but say Trig is Unidentified but asso is identified then the serial no. wise particles are not same and and j==i doesn't aplly)
    // if (tracksasso && trig->IsEqual(asso))  continue;
 
   if (tracksasso && (trig->GetUniqueID()==asso->GetUniqueID())) continue;
@@ -3056,8 +3549,8 @@ if (fRejectResonanceDaughters > 0)
          {
 
   // check first boundaries to see if is worth to loop and find the minimum
-           Float_t dphistar1 = GetDPhiStar(phi1, pt1, charge1, phi2, pt2, charge2, 0.8, bSign);
-           Float_t dphistar2 = GetDPhiStar(phi1, pt1, charge1, phi2, pt2, charge2, 2.5, bSign);
+           Float_t dphistar1 = GetDPhiStar(phi1, pt1, charge1, phi2, pt2, charge2, fTwoTrackCutMinRadius, bSign);
+           Float_t dphistar2 = GetDPhiStar(phi1, pt1, charge1, phi2, pt2, charge2, fTwoTrackCutMaxRadius, bSign);
 
  const Float_t kLimit = twoTrackEfficiencyCutValue * 3;
 
@@ -3066,7 +3559,7 @@ if (fRejectResonanceDaughters > 0)
 
  if (TMath::Abs(dphistar1) < kLimit || TMath::Abs(dphistar2) < kLimit || dphistar1 * dphistar2 < 0)
            {
-             for (Double_t rad=0.8; rad<2.51; rad+=0.01) 
+             for (Double_t rad=fTwoTrackCutMinRadius; rad<=fTwoTrackCutMaxRadius; rad+=0.01) 
              {
                Float_t dphistar = GetDPhiStar(phi1, pt1, charge1, phi2, pt2, charge2, rad, bSign);
 
@@ -3093,6 +3586,14 @@ if (dphistarminabs < twoTrackEfficiencyCutValue && TMath::Abs(deta) < twoTrackEf
          }
        }
 
+       //pair sharedfraction cut(only between the trig and asso track)
+   if(fillup!="trigIDassoIDMCTRUTH")//******************************************NOT for TRUTH MC particles
+  {
+    if(fSharedfraction_Pair_cut>=0){
+       Bool_t passsharedfractionpaircut=CalculateSharedFraction(trig->GetTPCPadMap(),asso->GetTPCPadMap(),trig->GetTPCSharedMap(),asso->GetTPCSharedMap());
+       if(!passsharedfractionpaircut) continue;
+    }
+  }
        Float_t weightperevent=weight;
         Float_t trackeffasso=1.0;
         if(fapplyAssoefficiency) trackeffasso=asso->geteffcorrectionval();
@@ -3130,7 +3631,7 @@ if(!fcontainPIDtrig && !fcontainPIDasso && SetChargeAxis==2){
        vars[dimension+1]=asso->Charge();
  }
 if(fcontainPIDtrig && !fcontainPIDasso){
-        vars[dimension]=particlepidtrig;
+        vars[dimension]=ParticlePID_InvMass;
 if(SetChargeAxis==2){
         vars[dimension+1]=trig->Charge();
        vars[dimension+2]=asso->Charge();
@@ -3144,7 +3645,7 @@ if(SetChargeAxis==2){
    }
  }
  if(fcontainPIDtrig && fcontainPIDasso){
-       vars[dimension]=particlepidtrig;
+       vars[dimension]=ParticlePID_InvMass;
        vars[dimension+1]=particlepidasso;
 if(SetChargeAxis==2){
         vars[dimension+2]=trig->Charge();
@@ -3194,7 +3695,67 @@ delete[] trigval;
     }
 }
 
-//--------------------------------------------------------------------------------
+//------------------------------------------------------------------------------------------------
+Bool_t AliTwoParticlePIDCorr:: CalculateSharedFraction(const TBits *triggerPadMap,const TBits *assocPadMap,const TBits *triggerShareMap,const TBits *assocShareMap)
+{//source code-AliFemtoShareQualityPairCut.cxx
+Double_t nofhits=0;
+Double_t nofsharedhits=0;
+
+for(UInt_t imap=0;imap< (triggerPadMap->GetNbits() );imap++)
+{
+//if they are in same pad
+//cout<<triggerPadMap->TestBitNumber(imap)<<"    "<< assocPadMap->TestBitNumber(imap)<<endl;
+if (triggerPadMap->TestBitNumber(imap) &&
+      assocPadMap->TestBitNumber(imap))
+{
+//if they share
+//cout<<triggerShareMap->TestBitNumber(imap)<<"   "<<assocShareMap->TestBitNumber(imap)<<endl;
+if (triggerShareMap->TestBitNumber(imap) &&
+      assocShareMap->TestBitNumber(imap))
+{
+  //cout<<triggerShareMap->TestBitNumber(imap)<<"   "<<assocShareMap->TestBitNumber(imap)<<endl;
+nofhits+=2;
+nofsharedhits+=2;
+}
+
+
+
+//not shared
+    else {
+     
+      nofhits+=2;
+    }
+
+
+}
+//different pad
+
+//cout<< (triggerPadMap->TestBitNumber(imap) || assocPadMap->TestBitNumber(imap))<<endl;
+else if (triggerPadMap->TestBitNumber(imap) ||
+      assocPadMap->TestBitNumber(imap)) {
+    // One track has a hit, the other does not
+   
+    nofhits++;
+    //cout<<"No hits :"<<nofhits<<endl;
+   
+      }
+
+
+
+}
+
+Double_t SharedFraction=0.0;
+if(nofhits>0) SharedFraction=(nofsharedhits/nofhits);
+
+//cout<<"Fraction shared hits :"<<SharedFraction<<endl;
+
+if(SharedFraction>fSharedfraction_Pair_cut) return kFALSE;
+
+return kTRUE;
+
+}
+
+//________________________________________________________________________________________________
 Float_t AliTwoParticlePIDCorr::GetTrackbyTrackeffvalue(AliAODTrack* track,Double_t cent,Float_t evzvtx, Int_t parpid)
 {
   //This function is called only when applyefficiency=kTRUE; also ensure that "track" is present before calling that function
@@ -3326,6 +3887,21 @@ Int_t AliTwoParticlePIDCorr::ClassifyTrack(AliAODTrack* track,AliAODVertex* vert
          if (frac > fSharedClusterCut)
            return 0;
        }
+
+   // Rejects tracks with shared clusters after filling a control histogram
+   // This overload is used for primaries
+
+     // Get the shared maps
+      const TBits sharedMap = track->GetTPCSharedMap();
+     // Fill a control histogram
+      fPriHistShare->Fill(sharedMap.CountBits());
+
+    // Reject shared clusters
+       if (fSharedTPCmapCut >= 0)
+       {     
+      if((sharedMap.CountBits()) >= 1)  return 0;// Bad track, has too many shared clusters!
+       }
+
      if (fill) fHistQA[8]->Fill(pt);
      if (fill) fHistQA[9]->Fill(track->Eta());
      if (fill) fHistQA[10]->Fill(track->Phi());
@@ -3934,37 +4510,7 @@ Float_t  AliTwoParticlePIDCorr::GetDPhiStar(Float_t phi1, Float_t pt1, Float_t c
   
   return dphistar;
 }
-//_________________________________________________________________________
-/*
-void AliTwoParticlePIDCorr ::DefineEventPool()
-{
-Int_t MaxNofEvents=1000;
-const Int_t NofVrtxBins=10+(1+10)*2;
-Double_t ZvrtxBins[NofVrtxBins+1]={ -10,   -8,  -6,  -4,  -2,   0,   2,   4,   6,   8,  10, 
-                                      90,  92,  94,  96,  98, 100, 102, 104, 106, 108, 110, 
-                                     190, 192, 194, 196, 198, 200, 202, 204, 206, 208, 210 
-
-//default values are for centrality
-Int_t  NofCentBins=15;
-Double_t CentralityBins[NofCentBins+1]={0., 1., 2., 3., 4., 5., 10., 20., 30., 40., 50., 60., 70., 80., 90., 100.1 };
-
- if(fCentralityMethod.EndsWith("_MANUAL"))
-   {
- Int_t  NofCentBins=9;
- CentralityBins[NofCentBins+1]={0.,9.,14.,19.,26.,34.,44.,58.,80.,500.};//Is This binning is fine for pp, or we don't require them....
-   }
-fPoolMgr = new AliEventPoolManager(MaxNofEvents,fMaxNofMixingTracks,NofCentBins,CentralityBins,NofVrtxBins,ZvrtxBins);
-
 
-
-  
-fPoolMgr->SetTargetValues(fMaxNofMixingTracks, 0.1, 5);
-
-//if(!fPoolMgr) return kFALSE;
-//return kTRUE;
-
-}
-*/
 //------------------------------------------------------------------------
 Double_t* AliTwoParticlePIDCorr::GetBinning(const char* configuration, const char* tag, Int_t& nBins)
 {
@@ -4122,9 +4668,13 @@ Double_t AliTwoParticlePIDCorr::GetEqualizationFactor(Int_t run, const char* sid
   return 1.0;
 }
 //________________________________________________________________________
-Double_t AliTwoParticlePIDCorr::GetReferenceMultiplicityVZEROFromAOD(AliAODEvent *event){
+Double_t AliTwoParticlePIDCorr::GetReferenceMultiplicityVZEROFromAOD(AliVEvent *mainevent){
   //Function that returns the reference multiplicity from AODs (data or reco MC, Not for Truth)
   //Different ref. mult. implemented: V0M, V0A, V0C, TPC
+  if(!mainevent) return -1;
+
+      AliAODEvent* event = dynamic_cast<AliAODEvent*>(mainevent);
+
   Double_t gRefMultiplicity = 0., gRefMultiplicityTPC = 0.;
   Double_t gRefMultiplicityVZERO = 0., gRefMultiplicityVZEROA = 0., gRefMultiplicityVZEROC = 0.;
 
@@ -4187,70 +4737,87 @@ Double_t AliTwoParticlePIDCorr::GetReferenceMultiplicityVZEROFromAOD(AliAODEvent
   //EQVZEROC vs EQVZEROA multiplicity
   fHistEQVZEROCvsEQVZEROAmultiplicity->Fill(gRefMultiplicityVZEROC,gRefMultiplicityVZEROA);
  }
-
- if(fCentralityMethod == "TRACKS_MANUAL") {
-    gRefMultiplicity = gRefMultiplicityTPC;
     fHistRefmult->Fill(3.,gRefMultiplicityTPC);
- }
- else if(fCentralityMethod == "V0M_MANUAL"){
-    gRefMultiplicity = gRefMultiplicityVZERO;
     fHistRefmult->Fill(2.,gRefMultiplicityVZERO);
-
- }
- else if(fCentralityMethod == "V0A_MANUAL"){
-    gRefMultiplicity = gRefMultiplicityVZEROA;
     fHistRefmult->Fill(0.,gRefMultiplicityVZEROA);
-
- }
- else if(fCentralityMethod == "V0C_MANUAL"){
-    gRefMultiplicity = gRefMultiplicityVZEROC;
     fHistRefmult->Fill(1.,gRefMultiplicityVZEROC);
- }
 
-  
+
+ if(fCentralityMethod == "TRACKS_MANUAL") gRefMultiplicity = gRefMultiplicityTPC;
+   
+ else if(fCentralityMethod == "V0M_MANUAL") gRefMultiplicity = gRefMultiplicityVZERO;
+
+ else if(fCentralityMethod == "V0A_MANUAL")  gRefMultiplicity = gRefMultiplicityVZEROA;
+   
+ else if(fCentralityMethod == "V0C_MANUAL") gRefMultiplicity = gRefMultiplicityVZEROC;
+ else gRefMultiplicity = gRefMultiplicityTPC;
   return gRefMultiplicity;
 }
 
 //-------------------------------------------------------------------------------------------------------
-Double_t AliTwoParticlePIDCorr::GetRefMultiOrCentrality(AliAODEvent *event, Bool_t truth){
+Double_t AliTwoParticlePIDCorr::GetRefMultiOrCentrality(AliVEvent *mainevent, Bool_t truth){
 
-  if(!event) return -1;
+  if(!mainevent) return -1;
   // get centrality object and check quality
   Double_t cent_v0=-1;
-  Double_t nooftrackstruth=0;
+  Bool_t shift_to_TRACKS_MANUAL=kFALSE;//in case of wrong setting automatic shift to Tracks_Manual method
+
+  Double_t gRefMultiplicityTPC_Truth = 0.;
+  Double_t gRefMultiplicityVZERO_Truth = 0., gRefMultiplicityVZEROA_Truth = 0., gRefMultiplicityVZEROC_Truth = 0.;
+
+  if(fAnalysisType == "AOD"|| fAnalysisType == "MCAOD") { //centrality in AOD header  //++++++++++++++
+      AliAODEvent* event = dynamic_cast<AliAODEvent*>(mainevent);
 
 if(fCentralityMethod=="V0M" || fCentralityMethod=="V0A" || fCentralityMethod=="V0C" || fCentralityMethod=="CL1" || fCentralityMethod=="ZNA" || fCentralityMethod=="V0AEq" || fCentralityMethod=="V0CEq" || fCentralityMethod=="V0MEq")//for PbPb, pPb, pp7TeV(still to be introduced)//data or RecoMC and also for TRUTH
     {
+                   
+if(fSampleType=="pp_7" && fPPVsMultUtils)
+   {//for pp 7 TeV case only using Alianalysisutils class
+       if(fAnalysisUtils) cent_v0 = fAnalysisUtils->GetMultiplicityPercentile((AliVEvent*)event,fCentralityMethod);
+       else cent_v0 = -1;
+  fHistCentStats->Fill(0.,fAnalysisUtils->GetMultiplicityPercentile((AliVEvent*)event,"V0A"));
+  fHistCentStats->Fill(1.,fAnalysisUtils->GetMultiplicityPercentile((AliVEvent*)event,"V0C"));
+  fHistCentStats->Fill(2.,fAnalysisUtils->GetMultiplicityPercentile((AliVEvent*)event,"V0M"));   
+  fHistCentStats->Fill(3.,fAnalysisUtils->GetMultiplicityPercentile((AliVEvent*)event,"V0AEq"));//only available for LHC10d at present (Quantile info)
+  fHistCentStats->Fill(4.,fAnalysisUtils->GetMultiplicityPercentile((AliVEvent*)event,"V0CEq"));//only available for LHC10d at present (Quantile info)
+  fHistCentStats->Fill(5.,fAnalysisUtils->GetMultiplicityPercentile((AliVEvent*)event,"V0MEq"));//only available for LHC10d at present (Quantile info)
+      }
+              
+else if(fSampleType=="pPb" || fSampleType=="PbPb")
+  {
   AliCentrality *centralityObj=0;
   AliAODHeader *header = (AliAODHeader*) event->GetHeader();
   if(!header) return -1;
   centralityObj = header->GetCentralityP();
   // if (centrality->GetQuality() != 0) return ;
-
-  if(centralityObj)
-  {
+  if(centralityObj){
   fHistCentStats->Fill(0.,centralityObj->GetCentralityPercentile("V0A"));
   fHistCentStats->Fill(1.,centralityObj->GetCentralityPercentile("V0C"));
   fHistCentStats->Fill(2.,centralityObj->GetCentralityPercentile("V0M"));
-if(fSampleType=="pp")   fHistCentStats->Fill(3.,centralityObj->GetCentralityPercentile("V0AEq"));//only available for LHC10d at present (Quantile info)
-if(fSampleType=="pp")   fHistCentStats->Fill(4.,centralityObj->GetCentralityPercentile("V0CEq"));//only available for LHC10d at present (Quantile info)
-if(fSampleType=="pp")   fHistCentStats->Fill(5.,centralityObj->GetCentralityPercentile("V0MEq"));//only available for LHC10d at present (Quantile info)
+  fHistCentStats->Fill(3.,centralityObj->GetCentralityPercentile("V0AEq"));//only available for LHC10d at present (Quantile info)
+  fHistCentStats->Fill(4.,centralityObj->GetCentralityPercentile("V0CEq"));//only available for LHC10d at present (Quantile info)
+  fHistCentStats->Fill(5.,centralityObj->GetCentralityPercentile("V0MEq"));//only available for LHC10d at present (Quantile info)
 
-if(fSampleType=="pPb" || fSampleType=="PbPb")      fHistCentStats->Fill(6.,centralityObj->GetCentralityPercentile("CL1"));
-if(fSampleType=="pPb" || fSampleType=="PbPb")      fHistCentStats->Fill(7.,centralityObj->GetCentralityPercentile("ZNA")); 
+  fHistCentStats->Fill(6.,centralityObj->GetCentralityPercentile("CL1"));
+  fHistCentStats->Fill(7.,centralityObj->GetCentralityPercentile("ZNA")); 
 
-      cent_v0 = centralityObj->GetCentralityPercentile(fCentralityMethod);
-  }
+   cent_v0 = centralityObj->GetCentralityPercentile(fCentralityMethod);
+    }
   else cent_v0= -1;    
+  }
+ else shift_to_TRACKS_MANUAL=kTRUE;    
+
     }//centralitymethod condition
 
- else if(fCentralityMethod=="V0M_MANUAL" || fCentralityMethod=="V0A_MANUAL" || fCentralityMethod=="V0C_MANUAL" || fCentralityMethod=="TRACKS_MANUAL")//data or RecoMc and also for TRUTH
+ else if(fCentralityMethod=="V0M_MANUAL" || fCentralityMethod=="V0A_MANUAL" || fCentralityMethod=="V0C_MANUAL" || fCentralityMethod=="TRACKS_MANUAL" || shift_to_TRACKS_MANUAL)//data or RecoMc and also for TRUTH
    {
      if(!truth){//for data or RecoMC
-    cent_v0 = GetReferenceMultiplicityVZEROFromAOD(event);
+       cent_v0 = GetReferenceMultiplicityVZEROFromAOD((AliVEvent*)event);
    }//for data or RecoMC
 
-    if(truth){//condition for TRUTH case
+    if(truth && (fAnalysisType == "MCAOD")){//condition for TRUTH case
 //check for TClonesArray(truth track MC information)
 fArrayMC = dynamic_cast<TClonesArray*>(event->FindListObject(AliAODMCParticle::StdBranchName()));
   if (!fArrayMC) {
@@ -4301,35 +4868,39 @@ isduplicate=kTRUE;
  if(fRemoveDuplicates && isduplicate) continue;//remove duplicates
 
 
-      if (fCentralityMethod=="V0M_MANUAL") {
-       if(partMC->Eta() > 5.1 || partMC->Eta() < 2.8)    continue;
-       if (partMC->Eta() < -3.7 || partMC->Eta() > -1.7) continue;
-}
-      else if (fCentralityMethod=="V0A_MANUAL") {
-       if(partMC->Eta() > 5.1 || partMC->Eta() < 2.8)  continue;}
-      else if (fCentralityMethod=="V0C_MANUAL") {
-       if(partMC->Eta() > -1.7 || partMC->Eta() < -3.7)  continue;}
-      else if (fCentralityMethod=="TRACKS_MANUAL") {
-        if (partMC->Eta() < fmineta || partMC->Eta() > fmaxeta) continue;
-        if (partMC->Pt() < fminPt ||  partMC->Pt() > fmaxPt) continue;
+       //  if (fCentralityMethod=="V0M_MANUAL") 
+       if((partMC->Eta() < 5.1 && partMC->Eta() > 2.8) || (partMC->Eta() > -3.7 && partMC->Eta() < -1.7)) gRefMultiplicityVZERO_Truth+=1;
+       //   else if (fCentralityMethod=="V0A_MANUAL") {
+       if(partMC->Eta() < 5.1 && partMC->Eta() > 2.8)  gRefMultiplicityVZEROA_Truth+=1;
+       // else if (fCentralityMethod=="V0C_MANUAL") {
+       if(partMC->Eta() < -1.7 && partMC->Eta() > -3.7)  gRefMultiplicityVZEROC_Truth+=1;
+       //else if (fCentralityMethod=="TRACKS_MANUAL") {
+        if (partMC->Eta() > fmineta && partMC->Eta() < fmaxeta) {
+         if (partMC->Pt() > fminPt &&  partMC->Pt() < fmaxPt) gRefMultiplicityTPC_Truth+=1;
            }
-      else{//basically returns the tracks manual case
-//give only kinematic cuts at the truth level  
-       if (partMC->Eta() < fmineta || partMC->Eta() > fmaxeta) continue;
-       if (partMC->Pt() < fminPt ||  partMC->Pt() > fmaxPt) continue;
-      }
+     
+ }//truth track loop ends
 
- //To determine multiplicity in case of PP
- nooftrackstruth+= 1;;
+ fHistRefmult->Fill(3.,gRefMultiplicityTPC_Truth);
+ fHistRefmult->Fill(2.,gRefMultiplicityVZERO_Truth); 
+ fHistRefmult->Fill(0.,gRefMultiplicityVZEROA_Truth);
+ fHistRefmult->Fill(1.,gRefMultiplicityVZEROC_Truth);
 
- }//truth track loop ends
- cent_v0=nooftrackstruth;
+ if(fCentralityMethod == "TRACKS_MANUAL")   cent_v0=gRefMultiplicityTPC_Truth;
+
+ else if(fCentralityMethod == "V0M_MANUAL")  cent_v0=gRefMultiplicityVZERO_Truth;
+
+ else if(fCentralityMethod == "V0A_MANUAL")  cent_v0=gRefMultiplicityVZEROA_Truth;
+
+ else if(fCentralityMethod == "V0C_MANUAL")  cent_v0=gRefMultiplicityVZEROC_Truth;
+ else      cent_v0=gRefMultiplicityTPC_Truth;
 
     }//condition for TRUTH case
 
    }//end of MANUAL method
 
- else if ((fAnalysisType == "MCAOD") && (fCentralityMethod == "MC_b"))//TRUTH MC
+ else if ((fAnalysisType == "MCAOD") && (fCentralityMethod == "MC_b"))//TRUTH MC in AOD production
     {
     AliAODMCHeader* header = (AliAODMCHeader*) event->GetList()->FindObject(AliAODMCHeader::StdBranchName());
     if (!header)
@@ -4347,23 +4918,137 @@ isduplicate=kTRUE;
       AliCollisionGeometry* collGeometry = dynamic_cast<AliCollisionGeometry*> (eventHeader);
      
       
-     if (collGeometry)   cent_v0 = collGeometry->ImpactParameter();
+      if (collGeometry) {
+  cent_v0 = collGeometry->ImpactParameter();
+  fhistImpactParm->Fill(cent_v0);
+      }
       else cent_v0=-1.;
     }//end of Impact parameter method
 
 //else return -1
  else cent_v0=-1.;
+}//AOD OR MCAOD condition
+
+
+else if(fAnalysisType == "MC"){
+    Double_t gImpactParameter = -1.;
+    AliMCEvent *gMCEvent = dynamic_cast<AliMCEvent*>(mainevent);
+    if(gMCEvent){
+      AliCollisionGeometry* headerH = dynamic_cast<AliCollisionGeometry*>(gMCEvent->GenEventHeader());      
+      if(headerH){
+       gImpactParameter = headerH->ImpactParameter();
+
+ for(Int_t iParticle = 0; iParticle < gMCEvent->GetNumberOfPrimaries(); iParticle++) {
+      AliMCParticle* track = dynamic_cast<AliMCParticle *>(gMCEvent->GetTrack(iParticle));
+      if (!track) {
+       AliError(Form("Could not receive particle %d", iParticle));
+       continue;
+      }
+      
+      //exclude non stable particles
+      if(!(gMCEvent->IsPhysicalPrimary(iParticle))) continue;
+
+      if(track->Charge() == 0) continue;
+
+ //  if (fCentralityMethod=="V0M_MANUAL") 
+       if((track->Eta() < 5.1 && track->Eta() > 2.8) || (track->Eta() > -3.7 && track->Eta() < -1.7)) gRefMultiplicityVZERO_Truth+=1;
+       //   else if (fCentralityMethod=="V0A_MANUAL") {
+       if(track->Eta() < 5.1 && track->Eta() > 2.8)  gRefMultiplicityVZEROA_Truth+=1;
+       // else if (fCentralityMethod=="V0C_MANUAL") {
+       if(track->Eta() < -1.7 && track->Eta() > -3.7)  gRefMultiplicityVZEROC_Truth+=1;
+       //else if (fCentralityMethod=="TRACKS_MANUAL") {
+        if (track->Eta() > fmineta && track->Eta() < fmaxeta) {
+         if (track->Pt() > fminPt &&  track->Pt() < fmaxPt) gRefMultiplicityTPC_Truth+=1;}
+
+     }//loop over primaries
+
+ fHistRefmult->Fill(3.,gRefMultiplicityTPC_Truth);
+ fHistRefmult->Fill(2.,gRefMultiplicityVZERO_Truth); 
+ fHistRefmult->Fill(0.,gRefMultiplicityVZEROA_Truth);
+ fHistRefmult->Fill(1.,gRefMultiplicityVZEROC_Truth);
+ if (fCentralityMethod == "MC_b"){
+       cent_v0=gImpactParameter;
+       fhistImpactParm->Fill(gImpactParameter);
+       fhistImpactParmvsMult->Fill(gImpactParameter,gRefMultiplicityTPC_Truth);
+ }
+
+ else if(fCentralityMethod == "TRACKS_MANUAL")   cent_v0=gRefMultiplicityTPC_Truth;
+
+ else if(fCentralityMethod == "V0M_MANUAL")  cent_v0=gRefMultiplicityVZERO_Truth;
+
+ else if(fCentralityMethod == "V0A_MANUAL")  cent_v0=gRefMultiplicityVZEROA_Truth;
+
+ else if(fCentralityMethod == "V0C_MANUAL")  cent_v0=gRefMultiplicityVZEROC_Truth;
+ else      cent_v0=gImpactParameter;//default value is the impact parameter
+    }//MC event header
+    }//MC event cast
+    else   cent_v0 = -1.;
+  }//MC condition
 
+  else{
+    cent_v0 = -1.;
+  }
  return cent_v0;
 }
 //-----------------------------------------------------------------------------------------
-Double_t AliTwoParticlePIDCorr::GetAcceptedEventMultiplicity(AliAODEvent *aod,Bool_t truth){
+Double_t AliTwoParticlePIDCorr::GetAcceptedEventMultiplicity(AliVEvent *event,Bool_t truth){
   //do the event selection(zvtx, pileup, centrality/multiplicity cut) and then return the value of the centrality of that event
-  if(!aod) return -1;
+  if(!event) return -1;
 
   Float_t gRefMultiplicity = -1.;
 
-  // check first event in chunk (is not needed for new reconstructions)
+   //***********************************SOURCE CODE-TASKBFPsi
+
+   // Event Vertex MC
+    if(fAnalysisType == "MC") {
+    AliMCEvent *mcevent = dynamic_cast<AliMCEvent*>(event);
+      if(!mcevent) {
+       AliError("mcEvent not available");
+      return -1.;
+      }
+      
+      if(mcevent){
+       AliGenEventHeader *header = dynamic_cast<AliGenEventHeader*>(mcevent->GenEventHeader());
+       if(header){  
+         TArrayF gVertexArray;
+         header->PrimaryVertex(gVertexArray);
+ //count events having a proper vertex
+          fEventCounter->Fill(5);        
+
+fHistQA[0]->Fill((gVertexArray.At(0)));fHistQA[1]->Fill((gVertexArray.At(1)));fHistQA[2]->Fill((gVertexArray.At(2))); //for trkVtx only before vertex cut |zvtx|<10 cm
+
+       if(TMath::Abs(gVertexArray.At(0)) < fVxMax_MC) {
+           if(TMath::Abs(gVertexArray.At(1)) < fVyMax_MC) {
+             if(TMath::Abs(gVertexArray.At(2)) < fVzMax_MC) {
+//count events after vertex cut
+                 fEventCounter->Fill(7);
+ fHistQA[3]->Fill((gVertexArray.At(0)));fHistQA[4]->Fill((gVertexArray.At(1)));fHistQA[5]->Fill((gVertexArray.At(2)));//after vertex cut,for trkVtx only
+
+               // get the reference multiplicty or centrality
+ gRefMultiplicity = GetRefMultiOrCentrality((AliVEvent*)mcevent,kFALSE);//2nd argument has no meaning
+
+               if(gRefMultiplicity<0) return -1;
+
+ // take events only within the  multiplicity class mentioned in the custom binning
+  if(gRefMultiplicity < fmincentmult || gRefMultiplicity > fmaxcentmult) return -1;
+
+//count events having proper centrality/ref multiplicity
+                    fEventCounter->Fill(9);
+
+             }//Vz cut
+           }//Vy cut
+         }//Vx cut
+       }//header    
+      }//MC event object
+    }//MC
+
+    else  if(fAnalysisType == "MCAOD" || fAnalysisType == "AOD"){// if(fAnalysisType == "MCAOD" || fAnalysisType == "AOD"
+  //vertex selection(is it fine for PP?)
+  AliAODEvent* aod = dynamic_cast<AliAODEvent*>(event);
+
+
+ // check first event in chunk (is not needed for new reconstructions)
   if(fCheckFirstEventInChunk){
     AliAnalysisUtils ut;
     if(ut.IsFirstEventInChunk(aod)) 
@@ -4381,9 +5066,8 @@ Double_t AliTwoParticlePIDCorr::GetAcceptedEventMultiplicity(AliAODEvent *aod,Bo
 //count events after pileup selection
    fEventCounter->Fill(3);
 
-  //vertex selection(is it fine for PP?)
- if ( fVertextype==1){//for pPb basically if(!fAnalysisUtils->IsVertexSelected2013pA(aod)) return; 
-  trkVtx = aod->GetPrimaryVertex();
+ if (fVertextype==1){//for pPb basically if(!fAnalysisUtils->IsVertexSelected2013pA(aod)) return; 
+   trkVtx = aod->GetPrimaryVertex();
   if (!trkVtx || trkVtx->GetNContributors()<=0) return -1;
   TString vtxTtl = trkVtx->GetTitle();
   if (!vtxTtl.Contains("VertexerTracks")) return -1;
@@ -4422,7 +5106,7 @@ Double_t AliTwoParticlePIDCorr::GetAcceptedEventMultiplicity(AliAODEvent *aod,Bo
 
   }
  else if(fVertextype==0){//default case
-  trkVtx = aod->GetPrimaryVertex();
+  trkVtx =(AliAODVertex*) aod->GetPrimaryVertex();
   if (!trkVtx || trkVtx->GetNContributors()<=0) return -1;//proper number of contributors
   zvtx = trkVtx->GetZ();
   Double32_t fCov[6];
@@ -4450,9 +5134,9 @@ fHistQA[0]->Fill((trkVtx->GetX()));fHistQA[1]->Fill((trkVtx->GetY()));fHistQA[2]
  fHistQA[3]->Fill((trkVtx->GetX()));fHistQA[4]->Fill((trkVtx->GetY()));fHistQA[5]->Fill((trkVtx->GetZ()));//after vertex cut,for trkVtx only
 
  //get the centrality or multiplicity
- if(truth)  {gRefMultiplicity = GetRefMultiOrCentrality(aod,kTRUE);}//kTRUE-->for Truth case(only meaningful in case of ref multiplicity,in case of centrality it has no meaning)
+ if(truth)  {gRefMultiplicity = GetRefMultiOrCentrality((AliVEvent*)aod,kTRUE);}//kTRUE-->for Truth case(only meaningful in case of ref multiplicity,in case of centrality it has no meaning)
 
- else {gRefMultiplicity = GetRefMultiOrCentrality(aod,kFALSE);}//kFALSE-->for data and RecoMc case(only meaningful in case of ref multiplicity,in case of centrality it has no meaning)
+ else {gRefMultiplicity = GetRefMultiOrCentrality((AliVEvent*)aod,kFALSE);}//kFALSE-->for data and RecoMc case(only meaningful in case of ref multiplicity,in case of centrality it has no meaning)
 
   if(gRefMultiplicity<0) return -1;
 
@@ -4473,15 +5157,58 @@ fHistQA[0]->Fill((trkVtx->GetX()));fHistQA[1]->Fill((trkVtx->GetY()));fHistQA[2]
 //count events after rejection due to centrality weighting
   fEventCounter->Fill(11);
 
+    }
+    else gRefMultiplicity=-1;
+
   return gRefMultiplicity;
 
 }
 //--------------------------------------------------------------------------------------------------------
-Float_t AliTwoParticlePIDCorr::GetEventPlane(AliAODEvent *event,Bool_t truth, Double_t v0Centr)
+Float_t AliTwoParticlePIDCorr::GetEventPlane(AliVEvent *mainevent,Bool_t truth, Double_t v0Centr)
 {
+  Float_t eventplane=999.;
   // Get the event plane
+  if(!mainevent) return 999.;
+
+
+ //MC: from reaction plane
+  if(fAnalysisType == "MC"){
+    if(!mainevent) {
+      AliError("mcEvent not available");
+      return 999.;
+    }
+
+    AliMCEvent *gMCEvent = dynamic_cast<AliMCEvent*>(mainevent);
+    if(gMCEvent){
+      AliCollisionGeometry* headerH = dynamic_cast<AliCollisionGeometry*>(gMCEvent->GenEventHeader());    
+      if (headerH) {
+ Int_t iC = -1;  
+    // Impact parameter bins(it is only for Pb-Pb)
+    if(v0Centr < 3.50) iC = 0;
+    else if(v0Centr < 4.94) iC = 1;
+    else if(v0Centr < 6.98) iC = 2;
+    else if(v0Centr < 8.55) iC = 3;
+    else if(v0Centr < 9.88) iC = 4;
+    else if(v0Centr < 11.04) iC = 5;
+    else if(v0Centr < 12.09) iC = 6;
+    else if(v0Centr < 13.05) iC = 7;
+    else iC = 8;
+
+       eventplane = headerH->ReactionPlaneAngle();
+       if(eventplane > TMath::Pi()/2 && eventplane <=  TMath::Pi()*3/2) eventplane-=TMath::Pi(); 
+        if(eventplane > TMath::Pi()*3/2) eventplane-=2*TMath::Pi();
+         fHistEventPlaneTruth->Fill(iC,eventplane);
+       //gReactionPlane *= TMath::RadToDeg();
+      }//MC header
+    }//MC event cast
+  }//MC
+  
+  else  if(fAnalysisType == "MCAOD" || fAnalysisType == "AOD") {
  //reset Q vector info 
 
+  AliAODEvent* event = dynamic_cast<AliAODEvent*>(mainevent);
+
+
     Int_t run = event->GetRunNumber();
 
     if(run != fRun){
@@ -4492,7 +5219,7 @@ Float_t AliTwoParticlePIDCorr::GetEventPlane(AliAODEvent *event,Bool_t truth, Do
 
 
   Int_t iC = -1;  
-if (v0Centr < 80){ // analysis only for 0-80% centrality classes
+  if (v0Centr > 80) return 999.; // analysis only for 0-80% centrality classes
  // centrality bins
     if(v0Centr < 5) iC = 0;
     else if(v0Centr < 10) iC = 1;
@@ -4522,7 +5249,7 @@ if (v0Centr < 80){ // analysis only for 0-80% centrality classes
       evplaneMC = header->GetReactionPlaneAngle();//[0, 360]
         //make it within [-pi/2,pi/2] to make it general
        if(evplaneMC > TMath::Pi()/2 && evplaneMC <=  TMath::Pi()*3/2) evplaneMC-=TMath::Pi(); 
-       else if(evplaneMC > TMath::Pi()*3/2) evplaneMC-=2*TMath::Pi();
+        if(evplaneMC > TMath::Pi()*3/2) evplaneMC-=2*TMath::Pi();
          fHistEventPlaneTruth->Fill(iC,evplaneMC);
        /*
         AliGenEventHeader* eventHeader = header->GetCocktailHeader(0);  // get first MC header from either ESD/AOD (including cocktail header if available)
@@ -4605,7 +5332,7 @@ if (v0Centr < 80){ // analysis only for 0-80% centrality classes
 
     for(Int_t iT = 0; iT < nAODTracks; iT++) {
       
-      AliAODTrack* aodTrack = event->GetTrack(iT);
+      AliAODTrack* aodTrack =(AliAODTrack*) event->GetTrack(iT);
       
       if (!aodTrack){
        continue;
@@ -4802,29 +5529,33 @@ if (v0Centr < 80){ // analysis only for 0-80% centrality classes
       //for the time being leave the 3rd order event planes within -pi/3 t0 +pi/3
 
       if(truth){//for truth MC
-       if(fV2 && fEPdet=="header")gReactionPlane=evplaneMC;
-       if(fV2 && fEPdet=="V0A")gReactionPlane=fgPsi2v0aMC;
-       if(fV2 && fEPdet=="V0C")gReactionPlane=fgPsi2v0cMC;
-       if(fV2 && fEPdet=="TPC")gReactionPlane=fgPsi2tpcMC;
-
-       if(fV3 && fEPdet=="V0A")gReactionPlane=fgPsi3v0aMC;
-       if(fV3 && fEPdet=="V0C")gReactionPlane=fgPsi3v0cMC;
-       if(fV3 && fEPdet=="TPC")gReactionPlane=fgPsi3tpcMC;
+       if(fV2 && fEPdet=="header")eventplane=evplaneMC;
+       if(fV2 && fEPdet=="V0A")eventplane=fgPsi2v0aMC;
+       if(fV2 && fEPdet=="V0C")eventplane=fgPsi2v0cMC;
+       if(fV2 && fEPdet=="TPC")eventplane=fgPsi2tpcMC;
+
+       if(fV3 && fEPdet=="V0A")eventplane=fgPsi3v0aMC;
+       if(fV3 && fEPdet=="V0C")eventplane=fgPsi3v0cMC;
+       if(fV3 && fEPdet=="TPC")eventplane=fgPsi3tpcMC;
 }
       else{//for data and recoMC
-       if(fV2 && fEPdet=="V0A")gReactionPlane=fgPsi2v0a;
-       if(fV2 && fEPdet=="V0C")gReactionPlane=fgPsi2v0c;
-       if(fV2 && fEPdet=="TPC")gReactionPlane=fgPsi2tpc;
+       if(fV2 && fEPdet=="V0A")eventplane=fgPsi2v0a;
+       if(fV2 && fEPdet=="V0C")eventplane=fgPsi2v0c;
+       if(fV2 && fEPdet=="TPC")eventplane=fgPsi2tpc;
 
-       if(fV3 && fEPdet=="V0A")gReactionPlane=fgPsi3v0a;
-       if(fV3 && fEPdet=="V0C")gReactionPlane=fgPsi3v0c;
-       if(fV3 && fEPdet=="TPC")gReactionPlane=fgPsi3tpc;
+       if(fV3 && fEPdet=="V0A")eventplane=fgPsi3v0a;
+       if(fV3 && fEPdet=="V0C")eventplane=fgPsi3v0c;
+       if(fV3 && fEPdet=="TPC")eventplane=fgPsi3tpc;
 
       }
      
- } //centrality cut condition
 
-return gReactionPlane;
+  }//AOD/MCAOD condition
+
+  else eventplane=999.;
+  return eventplane;
+
 }
 //------------------------------------------------------------------------------------------------------------------
 void AliTwoParticlePIDCorr::OpenInfoCalbration(Int_t run){
@@ -4939,6 +5670,280 @@ if(fRequestEventPlane){
  }
 }
 
+//____________________________________________________________________________________________________
+
+TObjArray* AliTwoParticlePIDCorr::GetV0Particles(AliVEvent* event,Double_t Centrality)
+{
+
+  AliAODEvent* fAOD = dynamic_cast<AliAODEvent*>(event);
+
+ //function to select v0's from AODs
+  trkVtx=fAOD->GetPrimaryVertex();
+  Float_t xv=trkVtx->GetX(), yv=trkVtx->GetY(), zv=trkVtx->GetZ();
+  Int_t nV0sTot = fAOD->GetNumberOfV0s();
+
+        TObjArray * selectedV0s = new TObjArray;
+       selectedV0s->SetOwner(kTRUE);
+
+ for (Int_t iV0 = 0; iV0 < nV0sTot; iV0++) 
+    {
+    
+    AliAODv0 *v0=fAOD->GetV0(iV0);
+    if (!v0) continue;
+    if(!CheckStatusv0(v0)) continue;
+
+    AliAODTrack *ptrack=(AliAODTrack*)v0->GetDaughter(0);
+    AliAODTrack *ntrack=(AliAODTrack*)v0->GetDaughter(1);
+
+    Bool_t cutK0sPID=kFALSE;
+    Bool_t cutLambdaPID=kFALSE;
+    Bool_t cutAntiLambdaPID=kFALSE;
+
+    if(fUsev0DaughterPID)
+{
+       //use fHelperPID check PID of the daughter tracks
+       //v0 daughter PID may be helpful in distangling k0S and (Anti)Lamda
+                                                                                          
+        Int_t PIDptrack = GetParticle(ptrack,kFALSE);
+        Int_t PIDntrack = GetParticle(ntrack ,kFALSE);
+
+        if(PIDptrack ==0 &&  PIDntrack == 0) cutK0sPID=kTRUE;
+
+        if(PIDptrack==2 && PIDntrack ==0) cutLambdaPID=kTRUE;
+
+        if (PIDptrack ==0 && PIDntrack == 2) cutAntiLambdaPID=kTRUE;
+
+      }
+
+ // effective mass calculations for each hypothesis(without daughter PID)
+    Double_t InvMassK0s = v0->MassK0Short();
+    Double_t InvMassAntiLambda = v0->MassAntiLambda();
+    Double_t InvMassLambda = v0->MassLambda();
+
+    Float_t v0Pt=TMath::Sqrt(v0->Pt2V0());
+    Float_t v0Eta=v0->Eta();
+    Float_t v0Phi=v0->Phi();
+
+    //This is simply raw v0 without any specialised cut
+    fHistRawPtCentInvK0s->Fill(InvMassK0s,v0Pt,Centrality);
+    fHistRawPtCentInvLambda->Fill(InvMassLambda,v0Pt,Centrality);
+    fHistRawPtCentInvAntiLambda->Fill(InvMassAntiLambda,v0Pt,Centrality);
+
+  // Decay vertex
+    Double_t xyz[3];   
+    v0->GetSecondaryVtx(xyz);
+    Float_t dx,dy,dz;
+     dx=xyz[0]-xv, dy=xyz[1]-yv, dz=xyz[2]-zv;
+
+     //  Float_t v0DecayRadius=TMath::Sqrt(dx*dx + dy*dy);
+    Float_t v0DecayLength=TMath::Sqrt(dx*dx + dy*dy + dz*dz);
+    // VO's main characteristics to check the reconstruction cuts
+    // Float_t DcaV0Daughters    = v0->DcaV0Daughters();
+    Float_t V0cosPointAngle   = v0->CosPointingAngle(trkVtx);
+    // Float_t DcaPosToPrimVertex = v0->DcaPosToPrimVertex();
+    //Float_t DcaNegToPrimVertex = v0->DcaNegToPrimVertex();   
+    //Float_t Dcav0PVz   = v0->DcaV0ToPrimVertex(); 
+    Float_t v0Pz=v0->Pz();
+    Float_t v0P= TMath::Sqrt(v0Pt*v0Pt + v0Pz*v0Pz);
+
+    Float_t ctauLambda =999.;
+    Float_t ctauAntiLambda = 999.;
+    Float_t ctauK0s = 999.;
+ if(v0P > 0.0)
+      {
+        ctauLambda = (v0DecayLength*InvMassLambda)/v0P;
+        ctauAntiLambda = (v0DecayLength*InvMassAntiLambda)/v0P;
+        ctauK0s = (v0DecayLength*InvMassK0s)/v0P;
+      }
+    
+    Bool_t ctauCutK0s= ctauK0s < NCtau*fCutctauK0s ; //ctauK0s 2.68 cm, mean life time of K0s is 8.95 x10^(-11)
+    Bool_t ctauCutLambda = ctauLambda    < NCtau*fCutctauLambda; //ctauLambda 7.8 cm ,mean life is 2.6 x10 ^(-10) ***** 3xctau is the accepted limit
+    Bool_t ctauCutAntiLambda= ctauAntiLambda < NCtau*fCutctauAntiLambda;
+
+    Bool_t RapCutK0s = v0->RapK0Short() < fRapCutK0s;
+    Bool_t RapCutLambda = v0->RapLambda() < fRapCutLambda; 
+    Bool_t RapCutAntiLambda = v0->Y(-3122) < fRapCutLambda;
+
+    Bool_t CPACut= V0cosPointAngle > fMinCPA; //cosine of pointing angle with v0 should be greater than 0.998
+
+    //Now we put a loose mass cut which will be tightened later 
+    Bool_t MassCutLooseK0s=(TMath::Abs(InvMassK0s - 0.497614) < 0.1);
+    Bool_t MassCutLooseLambda=(TMath::Abs(InvMassLambda - 1.115683) < 0.1); // cut is same for Anti-Lambda
+    Bool_t MassCutLooseAntiLambda=(TMath::Abs(InvMassAntiLambda - 1.115683) < 0.1); // cut is same for Anti-Lambda
+
+ //Special Cut for Kshort arementeros podalanski plot
+    Bool_t ArmenterosCut =kFALSE;
+    if(ctauCutK0s && RapCutK0s && CPACut && MassCutLooseK0s)
+      {
+
+    Float_t lAlphaV0      =  v0->AlphaV0();
+    Float_t lPtArmV0      =  v0->PtArmV0();
+
+     ArmenterosCut = lPtArmV0 > TMath::Abs(0.2*lAlphaV0);
+
+      }
+
+    Bool_t IskShortOk=(ctauCutK0s && RapCutK0s && CPACut && MassCutLooseK0s && ArmenterosCut);
+
+    Bool_t IsLambdaOk=(ctauCutLambda && RapCutLambda && CPACut && MassCutLooseLambda);
+
+    Bool_t IsAntiLambdaOk=(ctauCutAntiLambda && RapCutAntiLambda && CPACut && MassCutLooseAntiLambda);
+
+//Difference on Lambda and Anti-Lambda can be made through daughter PID
+
+
+    Int_t particletype=999;
+
+       if( IskShortOk || cutK0sPID )
+       {
+        fHistFinalPtCentInvK0s->Fill(InvMassK0s,v0Pt,Centrality);
+        particletype=SpKs0;
+
+    Short_t chargeval=0;
+    Float_t effmatrix=1.0;
+    LRCParticlePID* copy1 = new LRCParticlePID(particletype,InvMassK0s,chargeval,v0Pt,v0Eta, v0Phi,effmatrix,ptrack->GetTPCSharedMapPtr(),ntrack->GetTPCSharedMapPtr());
+    copy1->SetUniqueID(eventno * 200000 + (Int_t)iV0);
+    selectedV0s->Add(copy1);
+  
+       }
+
+
+       if(IsLambdaOk ||  cutLambdaPID)
+       {
+        fHistFinalPtCentInvLambda->Fill(InvMassLambda,v0Pt,Centrality);
+//Add in the LRCParticle and give Lambda a tag 5
+        particletype=SpLam;
+    Short_t chargeval=0;
+    Float_t effmatrix=1.0;
+    LRCParticlePID* copy1 = new LRCParticlePID(particletype,InvMassLambda,chargeval,v0Pt,v0Eta, v0Phi,effmatrix,ptrack->GetTPCSharedMapPtr(),ntrack->GetTPCSharedMapPtr());
+    copy1->SetUniqueID(eventno * 200000 + (Int_t)iV0);
+    selectedV0s->Add(copy1);
+       }
+
+       if(IsAntiLambdaOk ||  cutAntiLambdaPID)
+       {
+        fHistFinalPtCentInvLambda->Fill(InvMassAntiLambda,v0Pt,Centrality);
+//Add in the LRCParticle and give Lambda a tag 6
+        particletype=SpALam;
+    Short_t chargeval=0;
+    Float_t effmatrix=1.0;
+    LRCParticlePID* copy1 = new LRCParticlePID(particletype,InvMassAntiLambda,chargeval,v0Pt,v0Eta, v0Phi,effmatrix,ptrack->GetTPCSharedMapPtr(),ntrack->GetTPCSharedMapPtr());
+    copy1->SetUniqueID(eventno * 200000 + (Int_t)iV0);
+    selectedV0s->Add(copy1);
+       }
+
+
+    }//v0 loop
+
+  return selectedV0s;    
+}
+
+//___________________________________________________________________
+  Bool_t AliTwoParticlePIDCorr :: CheckStatusv0Daughter(AliAODTrack *t1 ,AliAODTrack *t2)
+  {
+  if (!t1->IsOn(AliAODTrack::kTPCrefit) || !t2->IsOn(AliAODTrack::kTPCrefit)) return kFALSE;
+  // Float_t nCrossedRowsTPC = t->GetTPCClusterInfo(2,1); 
+if(t1->GetTPCClusterInfo(2,1)<fDaugNClsTPC || t2->GetTPCClusterInfo(2,1)<fDaugNClsTPC) return kFALSE ;
+
+// ---------------- Fraction of TPC Shared Cluster 
+     Float_t fracPosDaugTPCSharedMap = GetFractionTPCSharedCls(t1);
+     Float_t fracNegDaugTPCSharedMap = GetFractionTPCSharedCls(t2);
+
+ if(  (fracPosDaugTPCSharedMap > fFracTPCcls) || (fracNegDaugTPCSharedMap > fFracTPCcls) )
+       return kFALSE;
+  
+  return kTRUE; 
+
+  }
+//___________________________________________________________________________________________
+   
+ Float_t AliTwoParticlePIDCorr :: GetFractionTPCSharedCls( AliAODTrack *track)
+{
+  // Rejects tracks with shared clusters after filling a control histogram
+  // This overload is used for primaries
+  // Get the shared maps
+  const TBits sharedMap = track->GetTPCSharedMap();
+
+  return 1.*sharedMap.CountBits()/track->GetTPCNclsF();
+  
+}
+//______________________________________________________________________
+  Bool_t AliTwoParticlePIDCorr :: CheckStatusv0(AliAODv0 *v1)
+  {
+
+    // Offline reconstructed V0 only
+    if (v1->GetOnFlyStatus()) return kFALSE;
+
+     AliAODTrack *ptrack=(AliAODTrack *)v1->GetDaughter(0);
+     AliAODTrack *ntrack=(AliAODTrack *)v1->GetDaughter(1);
+
+    if(!ptrack || !ntrack) return kFALSE;
+
+    if(ptrack->Charge()==-1 || ntrack->Charge()==1) return kFALSE; //remove wrongly identified charge pairs 
+
+    if(ptrack->Charge()==0 || ntrack->Charge()==0) return kFALSE; //remove uncharged pairs
+
+    if(ptrack->Charge() == ntrack->Charge()) return kFALSE; //remove like sign pairs 
+
+    if(!CheckStatusv0Daughter(ptrack,ntrack)) return kFALSE;//daughters need to pass some basic cuts    
+
+    if(TMath::Abs(ptrack->Eta()) > fmaxeta || TMath::Abs(ntrack->Eta()) > fmaxeta) return kFALSE; // remove daughters beyond eta bound |0.8|
+
+    if(ptrack->Pt() < fMinPtDaughter || ntrack->Pt() < fMinPtDaughter) return kFALSE; // remove daughter tracks below minmum p |1.0 GeV/c|
+
+    if(ptrack->Pt() > fMaxPtDaughter || ntrack->Pt() > fMaxPtDaughter) return kFALSE; // remove daughter tracks above maximum p ** to make it compatiable with AliHelperPID**|4.0 GeV/C|
+
+    // Daughters: Impact parameter of daughter to prim vtx
+    Float_t xy = v1->DcaPosToPrimVertex();
+    if (TMath::Abs(xy)<fDCAToPrimVtx) return kFALSE; //0.1 cm
+    xy = v1->DcaNegToPrimVertex();
+    if (TMath::Abs(xy)<fDCAToPrimVtx) return kFALSE; //0.1 cm
+
+    // Daughters: DCA
+    Float_t dca = v1->DcaV0Daughters();
+    if (dca>fMaxDCADaughter) return kFALSE; //1.0 cm
+    
+    // V0: Cosine of the pointing angle
+    Float_t cpa=v1->CosPointingAngle(trkVtx); //0.997
+    if (cpa<fMinCPA) return kFALSE;
+
+    // V0: Fiducial volume
+    Double_t xyz[3]; v1->GetSecondaryVtx(xyz);
+    Float_t r2=xyz[0]*xyz[0] + xyz[1]*xyz[1];
+    if (r2<5.*5.) return kFALSE;
+    if (r2>lMax*lMax) return kFALSE; //lmax=100 cm
+
+    return kTRUE;
+
+
+  }
+//__________________________________________________________________________________________
+Bool_t AliTwoParticlePIDCorr::IsTrackFromV0(AliAODEvent* fAOD,AliAODTrack* track)
+{
+//to check whether a daughter being taken as associated
+       Int_t assoID = track->GetID();
+
+       for(int i=0; i<fAOD->GetNumberOfV0s(); i++){ // loop over V0s
+               AliAODv0* aodV0 = fAOD->GetV0(i);
+               
+               AliAODTrack *trackPos=(AliAODTrack *)(aodV0->GetDaughter(0));
+               AliAODTrack *trackNeg=(AliAODTrack *)(aodV0->GetDaughter(1));
+                       
+               
+               Int_t negID = trackNeg->GetID();
+               Int_t posID = trackPos->GetID();
+               
+               if ((TMath::Abs(negID)+1)==(TMath::Abs(assoID))){ return kTRUE;}
+               if ((TMath::Abs(posID)+1)==(TMath::Abs(assoID))){ return kTRUE;}
+               //----------------------------------
+       }
+       return kFALSE;
+}
+
+
+
 //----------------------------------------------------------
 void AliTwoParticlePIDCorr::Terminate(Option_t *) 
 {