X-Git-Url: http://git.uio.no/git/?p=u%2Fmrichter%2FAliRoot.git;a=blobdiff_plain;f=TPC%2FAliTPCtrackerMI.cxx;h=1a30123b6fa689828d8bfc1901604470d30a8b99;hp=8438c6f1443a0792ba63a195c587a8f7bc8189e8;hb=17abbffbcdd31fdd5c4d2680b01ece1c2726e8cc;hpb=60e55aee9905a1a5e66dce1cd084737911e78b04

diff --git a/TPC/AliTPCtrackerMI.cxx b/TPC/AliTPCtrackerMI.cxx
index 8438c6f1443..1a30123b6fa 100644
--- a/TPC/AliTPCtrackerMI.cxx
+++ b/TPC/AliTPCtrackerMI.cxx
@@ -67,7 +67,7 @@
 //
 // The tracker itself can be debugged  - the information about tracks can be stored in several // phases of the reconstruction
 // To enable storage of the TPC tracks in the ESD friend track
-// use AliTPCReconstructor::SetStreamLevel(n); where nis bigger 0
+// use AliTPCReconstructor::SetStreamLevel(n); 
 //
 // The debug level -  different procedure produce tree for numerical debugging
 //                    To enable them set AliTPCReconstructor::SetStreamLevel(n); where nis bigger 1
@@ -95,12 +95,14 @@
 // There are several places in the code which can be numerically debuged
 // This code is keeped in order to enable code development and to check the calibration implementtion
 //
-//      1. ErrParam stream (Log level 9) - dump information about 
+//      1. ErrParam stream  - dump information about 
 //         1.a) cluster
 //         2.a) cluster error estimate
 //         3.a) cluster shape estimate
 //
 //
+//  Debug streamer levels:
+//  
 //-------------------------------------------------------
 
 
@@ -111,6 +113,7 @@
 #include <TFile.h>
 #include <TObjArray.h>
 #include <TTree.h>
+#include <TGraphErrors.h>
 #include "AliLog.h"
 #include "AliComplexCluster.h"
 #include "AliESDEvent.h"
@@ -131,12 +134,11 @@
 #include "AliTPCtrackerMI.h"
 #include "TStopwatch.h"
 #include "AliTPCReconstructor.h"
-#include "AliPID.h"
-#include "TTreeStream.h"
 #include "AliAlignObj.h"
 #include "AliTrackPointArray.h"
 #include "TRandom.h"
 #include "AliTPCcalibDB.h"
+#include "AliTPCcalibDButil.h"
 #include "AliTPCTransform.h"
 #include "AliTPCClusterParam.h"
 
@@ -196,12 +198,18 @@ AliTPCtrackerMI::AliTPCtrackerMI()
 		 fNtracks(0),
 		 fSeeds(0),
 		 fIteration(0),
-		 fParam(0),
+		 fkParam(0),
 		 fDebugStreamer(0)
 {
   //
   // default constructor
   //
+  for (Int_t irow=0; irow<200; irow++){
+    fXRow[irow]=0;
+    fYMax[irow]=0;
+    fPadLength[irow]=0;
+  }
+
 }
 //_____________________________________________________________________
 
@@ -222,7 +230,7 @@ Int_t AliTPCtrackerMI::UpdateTrack(AliTPCseed * track, Int_t accept){
   track->SetRow((i&0x00ff0000)>>16);
   track->SetSector(sec);
   //  Int_t index = i&0xFFFF;
-  if (sec>=fParam->GetNInnerSector()) track->SetRow(track->GetRow()+fParam->GetNRowLow()); 
+  if (sec>=fkParam->GetNInnerSector()) track->SetRow(track->GetRow()+fkParam->GetNRowLow()); 
   track->SetClusterIndex2(track->GetRow(), i);  
   //track->fFirstPoint = row;
   //if ( track->fLastPoint<row) track->fLastPoint =row;
@@ -289,39 +297,46 @@ Int_t AliTPCtrackerMI::AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluste
   //
   // decide according desired precision to accept given 
   // cluster for tracking
+  Double_t  yt=0,zt=0;
+  seed->GetProlongation(cluster->GetX(),yt,zt);
   Double_t sy2=ErrY2(seed,cluster);
   Double_t sz2=ErrZ2(seed,cluster);
   
   Double_t sdistancey2 = sy2+seed->GetSigmaY2();
   Double_t sdistancez2 = sz2+seed->GetSigmaZ2();
-  
-  Double_t rdistancey2 = (seed->GetCurrentCluster()->GetY()-seed->GetY())*
-    (seed->GetCurrentCluster()->GetY()-seed->GetY())/sdistancey2;
-  Double_t rdistancez2 = (seed->GetCurrentCluster()->GetZ()-seed->GetZ())*
-    (seed->GetCurrentCluster()->GetZ()-seed->GetZ())/sdistancez2;
+  Double_t dy=seed->GetCurrentCluster()->GetY()-yt;
+  Double_t dz=seed->GetCurrentCluster()->GetZ()-zt;
+  Double_t rdistancey2 = (seed->GetCurrentCluster()->GetY()-yt)*
+    (seed->GetCurrentCluster()->GetY()-yt)/sdistancey2;
+  Double_t rdistancez2 = (seed->GetCurrentCluster()->GetZ()-zt)*
+    (seed->GetCurrentCluster()->GetZ()-zt)/sdistancez2;
   
   Double_t rdistance2  = rdistancey2+rdistancez2;
   //Int_t  accept =0;
   
-  if (AliTPCReconstructor::StreamLevel()>5 && seed->GetNumberOfClusters()>20) {
+  if (AliTPCReconstructor::StreamLevel()>2 && seed->GetNumberOfClusters()>20) {
     Float_t rmsy2 = seed->GetCurrentSigmaY2();
     Float_t rmsz2 = seed->GetCurrentSigmaZ2();
     Float_t rmsy2p30 = seed->GetCMeanSigmaY2p30();
     Float_t rmsz2p30 = seed->GetCMeanSigmaZ2p30();
     Float_t rmsy2p30R  = seed->GetCMeanSigmaY2p30R();
     Float_t rmsz2p30R  = seed->GetCMeanSigmaZ2p30R();
-
-    AliExternalTrackParam param(*seed); 
+    AliExternalTrackParam param(*seed);
     static TVectorD gcl(3),gtr(3);
     Float_t gclf[3];
     param.GetXYZ(gcl.GetMatrixArray());
     cluster->GetGlobalXYZ(gclf);
     gcl[0]=gclf[0];    gcl[1]=gclf[1];    gcl[2]=gclf[2];
+
     
-    if (AliTPCReconstructor::StreamLevel()>0) {
+    if (AliTPCReconstructor::StreamLevel()>2) {
     (*fDebugStreamer)<<"ErrParam"<<
       "Cl.="<<cluster<<
       "T.="<<&param<<
+      "dy="<<dy<<
+      "dz="<<dz<<
+      "yt="<<yt<<
+      "zt="<<zt<<
       "gcl.="<<&gcl<<
       "gtr.="<<&gtr<<
       "erry2="<<sy2<<
@@ -332,11 +347,15 @@ Int_t AliTPCtrackerMI::AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluste
       "rmsz2p30="<<rmsz2p30<<	
       "rmsy2p30R="<<rmsy2p30R<<
       "rmsz2p30R="<<rmsz2p30R<<	
+      // normalize distance - 
+      "rdisty="<<rdistancey2<<
+      "rdistz="<<rdistancez2<<
+      "rdist="<<rdistance2<< //       
       "\n";
     }
   }
-  
-  if (rdistance2>16) return 3;
+  //return 0;  // temporary
+  if (rdistance2>32) return 3;
   
   
   if ((rdistancey2>9. || rdistancez2>9.) && cluster->GetType()==0)  
@@ -357,6 +376,7 @@ Int_t AliTPCtrackerMI::AcceptCluster(AliTPCseed * seed, AliTPCclusterMI * cluste
 
 
 
+
 //_____________________________________________________________________________
 AliTPCtrackerMI::AliTPCtrackerMI(const AliTPCParam *par): 
 AliTracker(), 
@@ -376,7 +396,7 @@ AliTracker(),
 		 fNtracks(0),
 		 fSeeds(0),
 		 fIteration(0),
-		 fParam(0),
+		 fkParam(0),
 		 fDebugStreamer(0)
 {
   //---------------------------------------------------------------------
@@ -389,7 +409,7 @@ AliTracker(),
   for (i=0; i<fkNIS; i++) fInnerSec[i].Setup(par,0);
   for (i=0; i<fkNOS; i++) fOuterSec[i].Setup(par,1);
 
-  fParam = par;  
+  fkParam = par;  
   Int_t nrowlow = par->GetNRowLow();
   Int_t nrowup = par->GetNRowUp();
 
@@ -430,15 +450,22 @@ AliTPCtrackerMI::AliTPCtrackerMI(const AliTPCtrackerMI &t):
 		 fNtracks(0),
 		 fSeeds(0),
 		 fIteration(0),
-		 fParam(0),
+		 fkParam(0),
 		 fDebugStreamer(0)
 {
   //------------------------------------
   // dummy copy constructor
   //------------------------------------------------------------------
   fOutput=t.fOutput;
+  for (Int_t irow=0; irow<200; irow++){
+    fXRow[irow]=0;
+    fYMax[irow]=0;
+    fPadLength[irow]=0;
+  }
+
 }
-AliTPCtrackerMI & AliTPCtrackerMI::operator=(const AliTPCtrackerMI& /*r*/){
+AliTPCtrackerMI & AliTPCtrackerMI::operator=(const AliTPCtrackerMI& /*r*/)
+{
   //------------------------------
   // dummy 
   //--------------------------------------------------------------
@@ -459,12 +486,13 @@ AliTPCtrackerMI::~AliTPCtrackerMI() {
 }
 
 
-void AliTPCtrackerMI::FillESD(TObjArray* arr)
+void AliTPCtrackerMI::FillESD(const TObjArray* arr)
 {
   //
   //
   //fill esds using updated tracks
-  if (fEvent){
+  if (!fEvent) return;
+  
     // write tracks to the event
     // store index of the track
     Int_t nseed=arr->GetEntriesFast();
@@ -479,9 +507,9 @@ void AliTPCtrackerMI::FillESD(TObjArray* arr)
 	  "Tr0.="<<pt<<
 	  "\n";       
       }
-      //      pt->PropagateTo(fParam->GetInnerRadiusLow());
+      //      pt->PropagateTo(fkParam->GetInnerRadiusLow());
       if (pt->GetKinkIndex(0)<=0){  //don't propagate daughter tracks 
-	pt->PropagateTo(fParam->GetInnerRadiusLow());
+	pt->PropagateTo(fkParam->GetInnerRadiusLow());
       }
  
       if (( pt->GetPoints()[2]- pt->GetPoints()[0])>5 && pt->GetPoints()[3]>0.8){
@@ -579,22 +607,39 @@ void AliTPCtrackerMI::FillESD(TObjArray* arr)
 	continue;
       }   
     }
-  }
-  printf("Number of filled ESDs-\t%d\n",fEvent->GetNumberOfTracks());
+    // >> account for suppressed tracks in the kink indices (RS)
+    int nESDtracks = fEvent->GetNumberOfTracks();
+    for (int it=nESDtracks;it--;) {
+      AliESDtrack* esdTr = fEvent->GetTrack(it);
+      if (!esdTr || !esdTr->GetKinkIndex(0)) continue;
+      for (int ik=0;ik<3;ik++) {
+	int knkId=0;
+	if (!(knkId=esdTr->GetKinkIndex(ik))) break; // no more kinks for this track
+	AliESDkink* kink = fEvent->GetKink(TMath::Abs(knkId)-1);
+	if (!kink) {
+	  AliError(Form("ESDTrack%d refers to non-existing kink %d",it,TMath::Abs(knkId)-1));
+	  continue;
+	}
+	kink->SetIndex(it, knkId<0 ? 0:1); // update track index of the kink: mother at 0, daughter at 1
+      }
+    }
+    // << account for suppressed tracks in the kink indices (RS)  
+    AliInfo(Form("Number of filled ESDs-\t%d\n",fEvent->GetNumberOfTracks()));
+  
 }
 
 
 
 
 
-Double_t AliTPCtrackerMI::ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl){
+Double_t AliTPCtrackerMI::ErrY2(AliTPCseed* seed, const AliTPCclusterMI * cl){
   //
   //
   // Use calibrated cluster error from OCDB
   //
   AliTPCClusterParam * clparam = AliTPCcalibDB::Instance()->GetClusterParam();
   //
-  Float_t z = TMath::Abs(fParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
+  Float_t z = TMath::Abs(fkParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
   Int_t ctype = cl->GetType();  
   Int_t    type = (cl->GetRow()<63) ? 0: (cl->GetRow()>126) ? 1:2;
   Double_t angle = seed->GetSnp()*seed->GetSnp();
@@ -642,7 +687,7 @@ Double_t AliTPCtrackerMI::ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl){
 //       gnoise1 = 0.0004/padlength;
 //       Float_t nel     = 0.268*amp;
 //       Float_t nprim   = 0.155*amp;
-//       ggg1[i]          = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.001*nel/(padlength*padlength))/nel;
+//       ggg1[i]          = fkParam->GetDiffT()*fkParam->GetDiffT()*(2+0.001*nel/(padlength*padlength))/nel;
 //       glandau1[i]      = (2.+0.12*nprim)*0.5* (2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
 //       if (glandau1[i]>1) glandau1[i]=1;
 //       glandau1[i]*=padlength*padlength/12.;      
@@ -652,7 +697,7 @@ Double_t AliTPCtrackerMI::ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl){
 //       gnoise2   = 0.0004/padlength;
 //       nel       = 0.3*amp;
 //       nprim     = 0.133*amp;
-//       ggg2[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
+//       ggg2[i]      = fkParam->GetDiffT()*fkParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
 //       glandau2[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
 //       if (glandau2[i]>1) glandau2[i]=1;
 //       glandau2[i]*=padlength*padlength/12.;
@@ -663,7 +708,7 @@ Double_t AliTPCtrackerMI::ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl){
 //       gnoise3   = 0.0004/padlength;
 //       nel       = 0.3*amp;
 //       nprim     = 0.133*amp;
-//       ggg3[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
+//       ggg3[i]      = fkParam->GetDiffT()*fkParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
 //       glandau3[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
 //       if (glandau3[i]>1) glandau3[i]=1;
 //       glandau3[i]*=padlength*padlength/12.;
@@ -680,7 +725,7 @@ Double_t AliTPCtrackerMI::ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl){
 //     return 1.;
 //   }
 //   Float_t snoise2;
-//   Float_t z = TMath::Abs(fParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
+//   Float_t z = TMath::Abs(fkParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
 //   Int_t ctype = cl->GetType();  
 //   Float_t padlength= GetPadPitchLength(seed->GetRow());
 //   Double_t angle2 = seed->GetSnp()*seed->GetSnp();
@@ -737,14 +782,14 @@ Double_t AliTPCtrackerMI::ErrY2(AliTPCseed* seed, AliTPCclusterMI * cl){
 
 
 
-Double_t AliTPCtrackerMI::ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl){
+Double_t AliTPCtrackerMI::ErrZ2(AliTPCseed* seed, const AliTPCclusterMI * cl){
   //
   //
   // Use calibrated cluster error from OCDB
   //
   AliTPCClusterParam * clparam = AliTPCcalibDB::Instance()->GetClusterParam();
   //
-  Float_t z = TMath::Abs(fParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
+  Float_t z = TMath::Abs(fkParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
   Int_t ctype = cl->GetType();  
   Int_t    type = (cl->GetRow()<63) ? 0: (cl->GetRow()>126) ? 1:2;
   //
@@ -798,7 +843,7 @@ Double_t AliTPCtrackerMI::ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl){
 //       gnoise1 = 0.0004/padlength;
 //       Float_t nel     = 0.268*amp;
 //       Float_t nprim   = 0.155*amp;
-//       ggg1[i]          = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.001*nel/(padlength*padlength))/nel;
+//       ggg1[i]          = fkParam->GetDiffT()*fkParam->GetDiffT()*(2+0.001*nel/(padlength*padlength))/nel;
 //       glandau1[i]      = (2.+0.12*nprim)*0.5* (2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
 //       if (glandau1[i]>1) glandau1[i]=1;
 //       glandau1[i]*=padlength*padlength/12.;      
@@ -808,7 +853,7 @@ Double_t AliTPCtrackerMI::ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl){
 //       gnoise2   = 0.0004/padlength;
 //       nel       = 0.3*amp;
 //       nprim     = 0.133*amp;
-//       ggg2[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
+//       ggg2[i]      = fkParam->GetDiffT()*fkParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
 //       glandau2[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
 //       if (glandau2[i]>1) glandau2[i]=1;
 //       glandau2[i]*=padlength*padlength/12.;
@@ -819,7 +864,7 @@ Double_t AliTPCtrackerMI::ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl){
 //       gnoise3   = 0.0004/padlength;
 //       nel       = 0.3*amp;
 //       nprim     = 0.133*amp;
-//       ggg3[i]      = fParam->GetDiffT()*fParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
+//       ggg3[i]      = fkParam->GetDiffT()*fkParam->GetDiffT()*(2+0.0008*nel/(padlength*padlength))/nel;
 //       glandau3[i]  = (2.+0.12*nprim)*0.5*(2.+nprim*nprim*0.001/(padlength*padlength))/nprim;
 //       if (glandau3[i]>1) glandau3[i]=1;
 //       glandau3[i]*=padlength*padlength/12.;
@@ -836,7 +881,7 @@ Double_t AliTPCtrackerMI::ErrZ2(AliTPCseed* seed, AliTPCclusterMI * cl){
 //     return 1.;
 //   }
 //   Float_t snoise2;
-//   Float_t z = TMath::Abs(fParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
+//   Float_t z = TMath::Abs(fkParam->GetZLength(0)-TMath::Abs(seed->GetZ()));
 //   Int_t ctype = cl->GetType();  
 //   Float_t padlength= GetPadPitchLength(seed->GetRow());
 //   //
@@ -922,7 +967,7 @@ void AliTPCtrackerMI::RotateToLocal(AliTPCseed *seed)
 //_____________________________________________________________________________
 Double_t AliTPCtrackerMI::F1old(Double_t x1,Double_t y1,
                    Double_t x2,Double_t y2,
-                   Double_t x3,Double_t y3) 
+                   Double_t x3,Double_t y3) const
 {
   //-----------------------------------------------------------------
   // Initial approximation of the track curvature
@@ -943,7 +988,7 @@ Double_t AliTPCtrackerMI::F1old(Double_t x1,Double_t y1,
 //_____________________________________________________________________________
 Double_t AliTPCtrackerMI::F1(Double_t x1,Double_t y1,
                    Double_t x2,Double_t y2,
-                   Double_t x3,Double_t y3) 
+                   Double_t x3,Double_t y3) const
 {
   //-----------------------------------------------------------------
   // Initial approximation of the track curvature
@@ -954,7 +999,7 @@ Double_t AliTPCtrackerMI::F1(Double_t x1,Double_t y1,
   y2 -=y1;
   //  
   Double_t det = x3*y2-x2*y3;
-  if (det==0) {
+  if (TMath::Abs(det)<1e-10){
     return 100;
   }
   //
@@ -969,7 +1014,7 @@ Double_t AliTPCtrackerMI::F1(Double_t x1,Double_t y1,
 
 Double_t AliTPCtrackerMI::F2(Double_t x1,Double_t y1,
                    Double_t x2,Double_t y2,
-                   Double_t x3,Double_t y3) 
+                   Double_t x3,Double_t y3) const 
 {
   //-----------------------------------------------------------------
   // Initial approximation of the track curvature
@@ -980,7 +1025,7 @@ Double_t AliTPCtrackerMI::F2(Double_t x1,Double_t y1,
   y2 -=y1;
   //  
   Double_t det = x3*y2-x2*y3;
-  if (det==0) {
+  if (TMath::Abs(det)<1e-10) {
     return 100;
   }
   //
@@ -999,7 +1044,7 @@ Double_t AliTPCtrackerMI::F2(Double_t x1,Double_t y1,
 //_____________________________________________________________________________
 Double_t AliTPCtrackerMI::F2old(Double_t x1,Double_t y1,
                    Double_t x2,Double_t y2,
-                   Double_t x3,Double_t y3) 
+                   Double_t x3,Double_t y3) const
 {
   //-----------------------------------------------------------------
   // Initial approximation of the track curvature times center of curvature
@@ -1018,7 +1063,7 @@ Double_t AliTPCtrackerMI::F2old(Double_t x1,Double_t y1,
 //_____________________________________________________________________________
 Double_t AliTPCtrackerMI::F3(Double_t x1,Double_t y1, 
                    Double_t x2,Double_t y2,
-                   Double_t z1,Double_t z2) 
+                   Double_t z1,Double_t z2) const
 {
   //-----------------------------------------------------------------
   // Initial approximation of the tangent of the track dip angle
@@ -1029,7 +1074,7 @@ Double_t AliTPCtrackerMI::F3(Double_t x1,Double_t y1,
 
 Double_t AliTPCtrackerMI::F3n(Double_t x1,Double_t y1, 
                    Double_t x2,Double_t y2,
-                   Double_t z1,Double_t z2, Double_t c) 
+                   Double_t z1,Double_t z2, Double_t c) const
 {
   //-----------------------------------------------------------------
   // Initial approximation of the tangent of the track dip angle
@@ -1049,7 +1094,7 @@ Double_t AliTPCtrackerMI::F3n(Double_t x1,Double_t y1,
   return angle2;
 }
 
-Bool_t   AliTPCtrackerMI::GetProlongation(Double_t x1, Double_t x2, Double_t x[5], Double_t &y, Double_t &z)
+Bool_t   AliTPCtrackerMI::GetProlongation(Double_t x1, Double_t x2, Double_t x[5], Double_t &y, Double_t &z) const
 {//-----------------------------------------------------------------
   // This function find proloncation of a track to a reference plane x=x2.
   //-----------------------------------------------------------------
@@ -1060,8 +1105,8 @@ Bool_t   AliTPCtrackerMI::GetProlongation(Double_t x1, Double_t x2, Double_t x[5
     return kFALSE;
   }
 
-  Double_t c1=x[4]*x1 - x[2], r1=sqrt((1.-c1)*(1.+c1));
-  Double_t c2=x[4]*x2 - x[2], r2=sqrt((1.-c2)*(1.+c2));  
+  Double_t c1=x[4]*x1 - x[2], r1=TMath::Sqrt((1.-c1)*(1.+c1));
+  Double_t c2=x[4]*x2 - x[2], r2=TMath::Sqrt((1.-c2)*(1.+c2));  
   y = x[0];
   z = x[1];
   
@@ -1084,7 +1129,7 @@ Bool_t   AliTPCtrackerMI::GetProlongation(Double_t x1, Double_t x2, Double_t x[5
   return kTRUE;  
 }
 
-Int_t  AliTPCtrackerMI::LoadClusters (TTree *tree)
+Int_t  AliTPCtrackerMI::LoadClusters (TTree *const tree)
 {
   //
   //
@@ -1093,11 +1138,11 @@ Int_t  AliTPCtrackerMI::LoadClusters (TTree *tree)
 }
 
 
-Int_t  AliTPCtrackerMI::LoadClusters(TObjArray *arr)
+Int_t  AliTPCtrackerMI::LoadClusters(const TObjArray *arr)
 {
   //
   // load clusters to the memory
-  AliTPCClustersRow *clrow = 0x0; 
+  AliTPCClustersRow *clrow = new AliTPCClustersRow("AliTPCclusterMI");
   Int_t lower   = arr->LowerBound();
   Int_t entries = arr->GetEntriesFast();
   
@@ -1108,7 +1153,7 @@ Int_t  AliTPCtrackerMI::LoadClusters(TObjArray *arr)
     
     //  
     Int_t sec,row;
-    fParam->AdjustSectorRow(clrow->GetID(),sec,row);
+    fkParam->AdjustSectorRow(clrow->GetID(),sec,row);
     
     for (Int_t icl=0; icl<clrow->GetArray()->GetEntriesFast(); icl++){
       Transform((AliTPCclusterMI*)(clrow->GetArray()->At(icl)));
@@ -1137,6 +1182,7 @@ Int_t  AliTPCtrackerMI::LoadClusters(TObjArray *arr)
       for (Int_t j=0;j<tpcrow->GetN2();++j) 
 	tpcrow->SetCluster2(j,*(AliTPCclusterMI*)(clrow->GetArray()->At(j)));
     }
+    clrow->GetArray()->Clear("C");
   }
   //
   delete clrow;
@@ -1145,7 +1191,7 @@ Int_t  AliTPCtrackerMI::LoadClusters(TObjArray *arr)
   return 0;
 }
 
-Int_t  AliTPCtrackerMI::LoadClusters(TClonesArray *arr)
+Int_t  AliTPCtrackerMI::LoadClusters(const TClonesArray *arr)
 {
   //
   // load clusters to the memory from one 
@@ -1186,11 +1232,11 @@ Int_t  AliTPCtrackerMI::LoadClusters(TClonesArray *arr)
     Int_t left=0;
     if (sec<fkNIS*2){
       left = sec/fkNIS;
-      fInnerSec[sec%fkNIS].InsertCluster(clust, count[sec][row], fParam);    
+      fInnerSec[sec%fkNIS].InsertCluster(clust, count[sec][row], fkParam);    
     }
     else{
       left = (sec-fkNIS*2)/fkNOS;
-      fOuterSec[(sec-fkNIS*2)%fkNOS].InsertCluster(clust, count[sec][row], fParam);
+      fOuterSec[(sec-fkNIS*2)%fkNOS].InsertCluster(clust, count[sec][row], fkParam);
     }
   }
 
@@ -1207,10 +1253,7 @@ Int_t  AliTPCtrackerMI::LoadClusters()
 {
   //
   // load clusters to the memory
-  AliTPCClustersRow *clrow= new AliTPCClustersRow;
-  clrow->SetClass("AliTPCclusterMI");
-  clrow->SetArray(0);
-  clrow->GetArray()->ExpandCreateFast(10000);
+  AliTPCClustersRow *clrow= new AliTPCClustersRow("AliTPCclusterMI");
   //
   //  TTree * tree = fClustersArray.GetTree();
 
@@ -1223,7 +1266,7 @@ Int_t  AliTPCtrackerMI::LoadClusters()
     br->GetEntry(i);
     //  
     Int_t sec,row;
-    fParam->AdjustSectorRow(clrow->GetID(),sec,row);
+    fkParam->AdjustSectorRow(clrow->GetID(),sec,row);
     for (Int_t icl=0; icl<clrow->GetArray()->GetEntriesFast(); icl++){
       Transform((AliTPCclusterMI*)(clrow->GetArray()->At(icl)));
     }
@@ -1319,10 +1362,13 @@ void   AliTPCtrackerMI::Transform(AliTPCclusterMI * cluster){
   //
   //
   //
-  AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ;
+  AliTPCcalibDB * calibDB = AliTPCcalibDB::Instance();
+  AliTPCTransform *transform = calibDB->GetTransform() ;
   if (!transform) {
     AliFatal("Tranformations not in calibDB");
+    return;
   }
+  transform->SetCurrentRecoParam((AliTPCRecoParam*)AliTPCReconstructor::GetRecoParam());
   Double_t x[3]={cluster->GetRow(),cluster->GetPad(),cluster->GetTimeBin()};
   Int_t i[1]={cluster->GetDetector()};
   transform->Transform(x,i,0,1);  
@@ -1333,7 +1379,7 @@ void   AliTPCtrackerMI::Transform(AliTPCclusterMI * cluster){
   //
   // in debug mode  check the transformation
   //
-  if (AliTPCReconstructor::StreamLevel()>1) {
+  if (AliTPCReconstructor::StreamLevel()>2) {
     Float_t gx[3];
     cluster->GetGlobalXYZ(gx);
     Int_t event = (fEvent==NULL)? 0: fEvent->GetEventNumberInFile();
@@ -1353,22 +1399,23 @@ void   AliTPCtrackerMI::Transform(AliTPCclusterMI * cluster){
   cluster->SetY(x[1]);
   cluster->SetZ(x[2]);
   // The old stuff:
-
   //
   // 
   //
-  //if (!fParam->IsGeoRead()) fParam->ReadGeoMatrices();
-  TGeoHMatrix  *mat = fParam->GetClusterMatrix(cluster->GetDetector());
-  //TGeoHMatrix  mat;
-  Double_t pos[3]= {cluster->GetX(),cluster->GetY(),cluster->GetZ()};
-  Double_t posC[3]={cluster->GetX(),cluster->GetY(),cluster->GetZ()};
-  if (mat) mat->LocalToMaster(pos,posC);
-  else{
-    // chack Loading of Geo matrices from GeoManager - TEMPORARY FIX
-  }
-  cluster->SetX(posC[0]);
-  cluster->SetY(posC[1]);
-  cluster->SetZ(posC[2]);
+  //if (!fkParam->IsGeoRead()) fkParam->ReadGeoMatrices();
+  if (AliTPCReconstructor::GetRecoParam()->GetUseSectorAlignment() && (!calibDB->HasAlignmentOCDB())){
+    TGeoHMatrix  *mat = fkParam->GetClusterMatrix(cluster->GetDetector());
+    //TGeoHMatrix  mat;
+    Double_t pos[3]= {cluster->GetX(),cluster->GetY(),cluster->GetZ()};
+    Double_t posC[3]={cluster->GetX(),cluster->GetY(),cluster->GetZ()};
+    if (mat) mat->LocalToMaster(pos,posC);
+    else{
+      // chack Loading of Geo matrices from GeoManager - TEMPORARY FIX
+    }
+    cluster->SetX(posC[0]);
+    cluster->SetY(posC[1]);
+    cluster->SetZ(posC[2]);
+  }
 }
 
 //_____________________________________________________________________________
@@ -1636,7 +1683,7 @@ Int_t AliTPCtrackerMI::FollowToNext(AliTPCseed& t, Int_t nr) {
   else
     {
       if (IsFindable(t))
-	  //      if (TMath::Abs(z)<(AliTPCReconstructor::GetCtgRange()*x+10) && TMath::Abs(z)<fParam->GetZLength(0) && (TMath::Abs(t.GetSnp())<AliTPCReconstructor::GetMaxSnpTracker())) 
+	  //      if (TMath::Abs(z)<(AliTPCReconstructor::GetCtgRange()*x+10) && TMath::Abs(z)<fkParam->GetZLength(0) && (TMath::Abs(t.GetSnp())<AliTPCReconstructor::GetMaxSnpTracker())) 
 	t.SetNFoundable(t.GetNFoundable()+1);
       else
 	return 0;
@@ -1691,19 +1738,19 @@ Bool_t AliTPCtrackerMI::GetTrackPoint(Int_t index, AliTrackPoint &p ) const
   Int_t sector = (index&0xff000000)>>24;
   //  Int_t row = (index&0x00ff0000)>>16;
   Float_t xyz[3];
-  //  xyz[0] = fParam->GetPadRowRadii(sector,row);
+  //  xyz[0] = fkParam->GetPadRowRadii(sector,row);
   xyz[0] = cl->GetX();
   xyz[1] = cl->GetY();
   xyz[2] = cl->GetZ();
   Float_t sin,cos;
-  fParam->AdjustCosSin(sector,cos,sin);
+  fkParam->AdjustCosSin(sector,cos,sin);
   Float_t x = cos*xyz[0]-sin*xyz[1];
   Float_t y = cos*xyz[1]+sin*xyz[0];
   Float_t cov[6];
   Float_t sigmaY2 = 0.027*cl->GetSigmaY2();
-  if (sector < fParam->GetNInnerSector()) sigmaY2 *= 2.07;
+  if (sector < fkParam->GetNInnerSector()) sigmaY2 *= 2.07;
   Float_t sigmaZ2 = 0.066*cl->GetSigmaZ2();
-  if (sector < fParam->GetNInnerSector()) sigmaZ2 *= 1.77;
+  if (sector < fkParam->GetNInnerSector()) sigmaZ2 *= 1.77;
   cov[0] = sin*sin*sigmaY2;
   cov[1] = -sin*cos*sigmaY2;
   cov[2] = 0.;
@@ -1713,13 +1760,13 @@ Bool_t AliTPCtrackerMI::GetTrackPoint(Int_t index, AliTrackPoint &p ) const
   p.SetXYZ(x,y,xyz[2],cov);
   AliGeomManager::ELayerID iLayer;
   Int_t idet;
-  if (sector < fParam->GetNInnerSector()) {
+  if (sector < fkParam->GetNInnerSector()) {
     iLayer = AliGeomManager::kTPC1;
     idet = sector;
   }
   else {
     iLayer = AliGeomManager::kTPC2;
-    idet = sector - fParam->GetNInnerSector();
+    idet = sector - fkParam->GetNInnerSector();
   }
   UShort_t volid = AliGeomManager::LayerToVolUID(iLayer,idet);
   p.SetVolumeID(volid);
@@ -2119,7 +2166,7 @@ void  AliTPCtrackerMI::SignShared(TObjArray * arr)
   for (Int_t i=0; i<nseed; i++) {
     AliTPCseed *pt=(AliTPCseed*)arr->UncheckedAt(i);    
     if (!pt) continue;
-    for (Int_t j=0;j<=12;j++){
+    for (Int_t j=0;j<12;j++){
       pt->SetOverlapLabel(j,0);
     }
   }
@@ -2210,13 +2257,8 @@ void AliTPCtrackerMI::RemoveUsed2(TObjArray * arr, Float_t factor1,  Float_t fac
     if (!pt) continue;
     //
     if (quality[trackindex]<0){
-      if (pt) {
 	delete arr->RemoveAt(trackindex);
-      }
-      else{
-	arr->RemoveAt(trackindex);
-      }
-      continue;
+	continue;
     }
     //
     //
@@ -2236,7 +2278,7 @@ void AliTPCtrackerMI::RemoveUsed2(TObjArray * arr, Float_t factor1,  Float_t fac
       //
       if (Float_t(shared+1)/Float_t(found+1)>factor){
 	if (pt->GetKinkIndexes()[0]!=0) continue;  //don't remove tracks  - part of the kinks
-	if( AliTPCReconstructor::StreamLevel()>15){
+	if( AliTPCReconstructor::StreamLevel()>3){
 	  TTreeSRedirector &cstream = *fDebugStreamer;
 	  cstream<<"RemoveUsed"<<
 	    "iter="<<fIteration<<
@@ -2248,7 +2290,7 @@ void AliTPCtrackerMI::RemoveUsed2(TObjArray * arr, Float_t factor1,  Float_t fac
       }      
       if (pt->GetNumberOfClusters()<50&&(found-0.5*shared)<minimal){  //remove short tracks
 	if (pt->GetKinkIndexes()[0]!=0) continue;  //don't remove tracks  - part of the kinks
-	if( AliTPCReconstructor::StreamLevel()>15){
+	if( AliTPCReconstructor::StreamLevel()>3){
 	  TTreeSRedirector &cstream = *fDebugStreamer;
 	  cstream<<"RemoveShort"<<
 	    "iter="<<fIteration<<
@@ -2283,6 +2325,88 @@ void AliTPCtrackerMI::RemoveUsed2(TObjArray * arr, Float_t factor1,  Float_t fac
   delete []indexes;
 }
 
+void AliTPCtrackerMI::DumpClusters(Int_t iter, TObjArray *trackArray) 
+{
+  //
+  // Dump clusters after reco
+  // signed and unsigned cluster can be visualized   
+  // 1. Unsign all cluster
+  // 2. Sign all used clusters
+  // 3. Dump clusters
+  UnsignClusters();
+  Int_t nseed = trackArray->GetEntries();
+  for (Int_t i=0; i<nseed; i++){
+    AliTPCseed *pt=(AliTPCseed*)trackArray->UncheckedAt(i);    
+    if (!pt) {
+      continue;
+    }    
+    Bool_t isKink=pt->GetKinkIndex(0)!=0;
+    for (Int_t j=0; j<160; ++j) {
+      Int_t index=pt->GetClusterIndex2(j);
+      if (index<0) continue;
+      AliTPCclusterMI *c= pt->GetClusterPointer(j);
+      if (!c) continue;
+      if (isKink) c->Use(100);   // kink
+      c->Use(10);                // by default usage 10
+    }
+  }
+  //
+
+  for (Int_t sec=0;sec<fkNIS;sec++){
+    for (Int_t row=0;row<fInnerSec->GetNRows();row++){
+      AliTPCclusterMI *cl = fInnerSec[sec][row].GetClusters1();
+      for (Int_t icl =0;icl< fInnerSec[sec][row].GetN1();icl++){    
+	Float_t gx[3];	cl[icl].GetGlobalXYZ(gx);
+	(*fDebugStreamer)<<"clDump"<< 
+	  "iter="<<iter<<
+	  "cl.="<<&cl[icl]<<      
+	  "gx0="<<gx[0]<<
+	  "gx1="<<gx[1]<<
+	  "gx2="<<gx[2]<<
+	  "\n";
+      }
+      cl = fInnerSec[sec][row].GetClusters2();
+      for (Int_t icl =0;icl< fInnerSec[sec][row].GetN2();icl++){
+	Float_t gx[3];	cl[icl].GetGlobalXYZ(gx);
+	(*fDebugStreamer)<<"clDump"<< 
+	  "iter="<<iter<<
+	  "cl.="<<&cl[icl]<<
+	  "gx0="<<gx[0]<<
+	  "gx1="<<gx[1]<<
+	  "gx2="<<gx[2]<<
+	  "\n";
+      }
+    }
+  }
+  
+  for (Int_t sec=0;sec<fkNOS;sec++){
+    for (Int_t row=0;row<fOuterSec->GetNRows();row++){
+      AliTPCclusterMI *cl = fOuterSec[sec][row].GetClusters1();
+      for (Int_t icl =0;icl< fOuterSec[sec][row].GetN1();icl++){
+	Float_t gx[3];	cl[icl].GetGlobalXYZ(gx);
+	(*fDebugStreamer)<<"clDump"<< 
+	  "iter="<<iter<<
+	  "cl.="<<&cl[icl]<<
+	  "gx0="<<gx[0]<<
+	  "gx1="<<gx[1]<<
+	  "gx2="<<gx[2]<<
+	  "\n";      
+      }
+      cl = fOuterSec[sec][row].GetClusters2();
+      for (Int_t icl =0;icl< fOuterSec[sec][row].GetN2();icl++){
+	Float_t gx[3];	cl[icl].GetGlobalXYZ(gx);
+	(*fDebugStreamer)<<"clDump"<< 
+	  "iter="<<iter<<
+	  "cl.="<<&cl[icl]<<
+	  "gx0="<<gx[0]<<
+	  "gx1="<<gx[1]<<
+	  "gx2="<<gx[2]<<
+	  "\n";      
+      }
+    }
+  }
+  
+}
 void AliTPCtrackerMI::UnsignClusters() 
 {
   //
@@ -2319,7 +2443,7 @@ void AliTPCtrackerMI::UnsignClusters()
 
 
 
-void AliTPCtrackerMI::SignClusters(TObjArray * arr, Float_t fnumber, Float_t fdensity)
+void AliTPCtrackerMI::SignClusters(const TObjArray * arr, Float_t fnumber, Float_t fdensity)
 {
   //
   //sign clusters to be "used"
@@ -2485,7 +2609,7 @@ void AliTPCtrackerMI::SignClusters(TObjArray * arr, Float_t fnumber, Float_t fde
 }
 
 
-void  AliTPCtrackerMI::StopNotActive(TObjArray * arr, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const
+void  AliTPCtrackerMI::StopNotActive(const TObjArray * arr, Int_t row0, Float_t th0, Float_t th1, Float_t th2) const
 {
   // stop not active tracks
   // take th1 as threshold for number of founded to number of foundable on last 10 active rows
@@ -2545,8 +2669,29 @@ Int_t AliTPCtrackerMI::RefitInward(AliESDEvent *event)
   // back propagation of ESD tracks
   //
   //return 0;
+  if (!event) return 0;
   const Int_t kMaxFriendTracks=2000;
   fEvent = event;
+  // extract correction object for multiplicity dependence of dEdx
+  TObjArray * gainCalibArray = AliTPCcalibDB::Instance()->GetTimeGainSplinesRun(event->GetRunNumber());
+
+  AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ;
+  if (!transform) {
+    AliFatal("Tranformations not in RefitInward");
+    return 0;
+  }
+  transform->SetCurrentRecoParam((AliTPCRecoParam*)AliTPCReconstructor::GetRecoParam());
+  const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam();
+
+  TGraphErrors * graphMultDependenceDeDx = 0x0;
+  if (recoParam && recoParam->GetUseMultiplicityCorrectionDedx() && gainCalibArray) {
+    if (recoParam->GetUseTotCharge()) {
+      graphMultDependenceDeDx = (TGraphErrors *) gainCalibArray->FindObject("TGRAPHERRORS_MEANQTOT_MULTIPLICITYDEPENDENCE_BEAM_ALL");
+    } else {
+      graphMultDependenceDeDx = (TGraphErrors *) gainCalibArray->FindObject("TGRAPHERRORS_MEANQMAX_MULTIPLICITYDEPENDENCE_BEAM_ALL");
+    }
+  }
+  //
   ReadSeeds(event,2);
   fIteration=2;
   //PrepareForProlongation(fSeeds,1);
@@ -2560,7 +2705,7 @@ Int_t AliTPCtrackerMI::RefitInward(AliESDEvent *event)
   SignShared(&arraySeed);
   //  FindCurling(fSeeds, event,2); // find multi found tracks
   FindSplitted(fSeeds, event,2); // find multi found tracks
-  if (AliTPCReconstructor::StreamLevel()>2)  FindMultiMC(fSeeds, fEvent,2); // find multi found tracks
+  if (AliTPCReconstructor::StreamLevel()>5)  FindMultiMC(fSeeds, fEvent,2); // find multi found tracks
 
   Int_t ntracks=0;
   Int_t nseed = fSeeds->GetEntriesFast();
@@ -2574,7 +2719,7 @@ Int_t AliTPCtrackerMI::RefitInward(AliESDEvent *event)
       AliExternalTrackParam paramIn;
       AliExternalTrackParam paramOut;
       Int_t ncl = seed->RefitTrack(seed,&paramIn,&paramOut);
-      if (AliTPCReconstructor::StreamLevel()>0) {
+      if (AliTPCReconstructor::StreamLevel()>2) {
 	(*fDebugStreamer)<<"RecoverIn"<<
 	  "seed.="<<seed<<
 	  "esd.="<<esd<<
@@ -2589,7 +2734,7 @@ Int_t AliTPCtrackerMI::RefitInward(AliESDEvent *event)
       }
     }
 
-    seed->PropagateTo(fParam->GetInnerRadiusLow());
+    seed->PropagateTo(fkParam->GetInnerRadiusLow());
     seed->UpdatePoints();
     AddCovariance(seed);
     MakeBitmaps(seed);
@@ -2598,7 +2743,7 @@ Int_t AliTPCtrackerMI::RefitInward(AliESDEvent *event)
     esd->SetTPCClusterMap(seed->GetClusterMap());
     esd->SetTPCSharedMap(seed->GetSharedMap());
     //
-    if (AliTPCReconstructor::StreamLevel()>1 && seed!=0&&esd!=0) {
+    if (AliTPCReconstructor::StreamLevel()>1 && seed!=0) {
       TTreeSRedirector &cstream = *fDebugStreamer;
       cstream<<"Crefit"<<
 	"Esd.="<<esd<<
@@ -2610,9 +2755,15 @@ Int_t AliTPCtrackerMI::RefitInward(AliESDEvent *event)
       esd->UpdateTrackParams(seed,AliESDtrack::kTPCrefit); 
       esd->SetTPCPoints(seed->GetPoints());
       esd->SetTPCPointsF(seed->GetNFoundable());
-      Int_t ndedx   = seed->GetNCDEDX(0)+seed->GetNCDEDX(1)+seed->GetNCDEDX(2)+seed->GetNCDEDX(3);
-      Float_t sdedx = (seed->GetSDEDX(0)+seed->GetSDEDX(1)+seed->GetSDEDX(2)+seed->GetSDEDX(3))*0.25;
+      Int_t   ndedx = seed->GetNCDEDX(0);
+      Float_t sdedx = seed->GetSDEDX(0);
       Float_t dedx  = seed->GetdEdx();
+      // apply mutliplicity dependent dEdx correction if available
+      if (graphMultDependenceDeDx) {
+	Int_t nContribut  = event->GetPrimaryVertexTPC()->GetNContributors();
+	Double_t corrGain =  AliTPCcalibDButil::EvalGraphConst(graphMultDependenceDeDx, nContribut);
+	dedx /= corrGain;
+      }
       esd->SetTPCsignal(dedx, sdedx, ndedx);
       //
       // add seed to the esd track in Calib level
@@ -2629,6 +2780,7 @@ Int_t AliTPCtrackerMI::RefitInward(AliESDEvent *event)
     }
   }
   //FindKinks(fSeeds,event);
+  if (AliTPCReconstructor::StreamLevel()>3)  DumpClusters(2,fSeeds);
   Info("RefitInward","Number of refitted tracks %d",ntracks);
   return 0;
 }
@@ -2639,7 +2791,7 @@ Int_t AliTPCtrackerMI::PropagateBack(AliESDEvent *event)
   //
   // back propagation of ESD tracks
   //
-
+  if (!event) return 0;
   fEvent = event;
   fIteration = 1;
   ReadSeeds(event,1);
@@ -2647,7 +2799,7 @@ Int_t AliTPCtrackerMI::PropagateBack(AliESDEvent *event)
   RemoveUsed2(fSeeds,0.4,0.4,20);
   //FindCurling(fSeeds, fEvent,1);  
   FindSplitted(fSeeds, event,1); // find multi found tracks
-  if (AliTPCReconstructor::StreamLevel()>2)  FindMultiMC(fSeeds, fEvent,1); // find multi found tracks
+  if (AliTPCReconstructor::StreamLevel()>5)  FindMultiMC(fSeeds, fEvent,1); // find multi found tracks
 
   //
   Int_t nseed = fSeeds->GetEntriesFast();
@@ -2663,7 +2815,7 @@ Int_t AliTPCtrackerMI::PropagateBack(AliESDEvent *event)
       AliExternalTrackParam paramIn;
       AliExternalTrackParam paramOut;
       Int_t ncl = seed->RefitTrack(seed,&paramIn,&paramOut);
-      if (AliTPCReconstructor::StreamLevel()>0) {
+      if (AliTPCReconstructor::StreamLevel()>2) {
 	(*fDebugStreamer)<<"RecoverBack"<<
 	  "seed.="<<seed<<
 	  "esd.="<<esd<<
@@ -2683,8 +2835,8 @@ Int_t AliTPCtrackerMI::PropagateBack(AliESDEvent *event)
       esd->UpdateTrackParams(seed,AliESDtrack::kTPCout);
       esd->SetTPCPoints(seed->GetPoints());
       esd->SetTPCPointsF(seed->GetNFoundable());
-      Int_t ndedx   = seed->GetNCDEDX(0)+seed->GetNCDEDX(1)+seed->GetNCDEDX(2)+seed->GetNCDEDX(3);
-      Float_t sdedx = (seed->GetSDEDX(0)+seed->GetSDEDX(1)+seed->GetSDEDX(2)+seed->GetSDEDX(3))*0.25;
+      Int_t   ndedx = seed->GetNCDEDX(0);
+      Float_t sdedx = seed->GetSDEDX(0);
       Float_t dedx  = seed->GetdEdx();
       esd->SetTPCsignal(dedx, sdedx, ndedx);
       ntracks++;
@@ -2699,6 +2851,7 @@ Int_t AliTPCtrackerMI::PropagateBack(AliESDEvent *event)
       }
     }
   }
+  if (AliTPCReconstructor::StreamLevel()>3)  DumpClusters(1,fSeeds);
   //FindKinks(fSeeds,event);
   Info("PropagateBack","Number of back propagated tracks %d",ntracks);
   fEvent =0;
@@ -2722,7 +2875,7 @@ void AliTPCtrackerMI::DeleteSeeds()
   fSeeds =0;
 }
 
-void AliTPCtrackerMI::ReadSeeds(AliESDEvent *event, Int_t direction)
+void AliTPCtrackerMI::ReadSeeds(AliESDEvent *const event, Int_t direction)
 {
   //
   //read seeds from the event
@@ -2849,9 +3002,13 @@ void AliTPCtrackerMI::MakeSeeds3(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2,
   Double_t x[5], c[15];
   //  Int_t di = i1-i2;
   //
+  AliTPCseed * seed = new AliTPCseed();
   Double_t alpha=fSectors->GetAlpha(), shift=fSectors->GetAlphaShift();
   Double_t cs=cos(alpha), sn=sin(alpha);
-  //  
+  //
+  //  Double_t x1 =fOuterSec->GetX(i1);
+  //Double_t xx2=fOuterSec->GetX(i2);
+  
   Double_t x1 =GetXrow(i1);
   Double_t xx2=GetXrow(i2);
 
@@ -3052,78 +3209,82 @@ void AliTPCtrackerMI::MakeSeeds3(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2,
         c[13]=f30*sy1*f40+f32*sy2*f42;
         c[14]=f40*sy1*f40+f42*sy2*f42+f43*sy3*f43;
 	
+	//	if (!BuildSeed(kr1[is],kcl,0,x1,x2,x3,x,c)) continue;
 	
         UInt_t index=kr1.GetIndex(is);
-	AliTPCseed track(x1, ns*alpha+shift, x, c, index);
+	seed->~AliTPCseed(); // this does not set the pointer to 0...
+	AliTPCseed *track=new(seed) AliTPCseed(x1, ns*alpha+shift, x, c, index);
 	
-	track.SetIsSeeding(kTRUE);
-	track.SetSeed1(i1);
-	track.SetSeed2(i2);
-	track.SetSeedType(3);
+	track->SetIsSeeding(kTRUE);
+	track->SetSeed1(i1);
+	track->SetSeed2(i2);
+	track->SetSeedType(3);
 
        
 	//if (dsec==0) {
-	  FollowProlongation(track, (i1+i2)/2,1);
+	  FollowProlongation(*track, (i1+i2)/2,1);
 	  Int_t foundable,found,shared;
-	  track.GetClusterStatistic((i1+i2)/2,i1, found, foundable, shared, kTRUE);
-	  if ((found<0.55*foundable)  || shared>0.5*found || (track.GetSigmaY2()+track.GetSigmaZ2())>0.5){
+	  track->GetClusterStatistic((i1+i2)/2,i1, found, foundable, shared, kTRUE);
+	  if ((found<0.55*foundable)  || shared>0.5*found || (track->GetSigmaY2()+track->GetSigmaZ2())>0.5){
+	    seed->Reset();
+	    seed->~AliTPCseed();
 	    continue;
 	  }
 	  //}
 	
 	nin++;
-	FollowProlongation(track, i2,1);
+	FollowProlongation(*track, i2,1);
 	
 	
 	//Int_t rc = 1;
-	track.SetBConstrain(1);
+	track->SetBConstrain(1);
 	//	track->fLastPoint = i1+fInnerSec->GetNRows();  // first cluster in track position
-	track.SetLastPoint(i1);  // first cluster in track position
-	track.SetFirstPoint(track.GetLastPoint());
+	track->SetLastPoint(i1);  // first cluster in track position
+	track->SetFirstPoint(track->GetLastPoint());
 	
-	if (track.GetNumberOfClusters()<(i1-i2)*0.5 || 
-	    track.GetNumberOfClusters() < track.GetNFoundable()*0.6 || 
-	    track.GetNShared()>0.4*track.GetNumberOfClusters() ) {
+	if (track->GetNumberOfClusters()<(i1-i2)*0.5 || 
+	    track->GetNumberOfClusters() < track->GetNFoundable()*0.6 || 
+	    track->GetNShared()>0.4*track->GetNumberOfClusters() ) {
+	  seed->Reset();
+	  seed->~AliTPCseed();
 	  continue;
 	}
 	nout1++;
         // Z VERTEX CONDITION
 	Double_t zv, bz=GetBz();
-        if ( !track.GetZAt(0.,bz,zv) ) continue;
+        if ( !track->GetZAt(0.,bz,zv) ) continue;
 	if (TMath::Abs(zv-z3)>cuts[2]) {
-	  FollowProlongation(track, TMath::Max(i2-20,0));
-          if ( track.GetZAt(0.,bz,zv) ) continue;
+	  FollowProlongation(*track, TMath::Max(i2-20,0));
+          if ( !track->GetZAt(0.,bz,zv) ) continue;
 	  if (TMath::Abs(zv-z3)>cuts[2]){
-	    // If track do not point to the primary vertex, but sufficientlu long
-	    //try to refit it without constrain
-	    //
-	    //
-	    FollowProlongation(track, TMath::Max(i2-40,0));
-            if ( !track.GetZAt(0.,bz,zv) ) continue;
-	    if (TMath::Abs(zv-z3)>cuts[2] &&(track.GetNumberOfClusters() > track.GetNFoundable()*0.7)){
+	    FollowProlongation(*track, TMath::Max(i2-40,0));
+            if ( !track->GetZAt(0.,bz,zv) ) continue;
+	    if (TMath::Abs(zv-z3)>cuts[2] &&(track->GetNumberOfClusters() > track->GetNFoundable()*0.7)){
 	      // make seed without constrain
-	      AliTPCseed * track2 = MakeSeed(&track,0.2,0.5,1.);
+	      AliTPCseed * track2 = MakeSeed(track,0.2,0.5,1.);
 	      FollowProlongation(*track2, i2,1);
 	      track2->SetBConstrain(kFALSE);
 	      track2->SetSeedType(1);
-	      arr->AddLast(track2->Clone()); 
+	      arr->AddLast(track2); 
+	      seed->Reset();
+	      seed->~AliTPCseed();
 	      continue;		
 	    }
 	    else{
-	      //seed->Reset();
-	      //seed->~AliTPCseed();
+	      seed->Reset();
+	      seed->~AliTPCseed();
 	      continue;
-	      
+	    
 	    }
 	  }
 	}
       
-	track.SetSeedType(0);
-	arr->AddLast(track.Clone()); 
-	//seed = new AliTPCseed; 	
+	track->SetSeedType(0);
+	arr->AddLast(track); 
+	seed = new AliTPCseed; 	
 	nout2++;
 	// don't consider other combinations
-	if (track.GetNumberOfClusters() > track.GetNFoundable()*0.8)
+	if (track->GetNumberOfClusters() > track->GetNFoundable()*0.8)
 	  break;
       }
     }
@@ -3131,7 +3292,7 @@ void AliTPCtrackerMI::MakeSeeds3(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2,
   if (fDebug>3){
     Info("MakeSeeds3","\nSeeding statistic:\t%d\t%d\t%d\t%d\t%d\t%d",nin0,nin1,nin2,nin,nout1,nout2);
   }
-  //  delete seed;
+  delete seed;
 }
 
 
@@ -3388,7 +3549,7 @@ void AliTPCtrackerMI::MakeSeeds5(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2,
   }
   
   if (fDebug>3){
-    Info("MakeSeeds5","\nSeeding statiistic:\t%d\t%d\t%d\t%d\t%d\t%d",nin0,nin1,nin2,nin,nout1,nout2,nout3);
+    Info("MakeSeeds5","\nSeeding statiistic:\t%d\t%d\t%d\t%d\t%d\t%d\t%d",nin0,nin1,nin2,nin,nout1,nout2,nout3);
   }
   delete seed;
 }
@@ -3652,7 +3813,7 @@ void AliTPCtrackerMI::MakeSeeds2(TObjArray * arr, Int_t sec, Int_t i1, Int_t i2,
 }
 
 
-AliTPCseed *AliTPCtrackerMI::MakeSeed(AliTPCseed *track, Float_t r0, Float_t r1, Float_t r2)
+AliTPCseed *AliTPCtrackerMI::MakeSeed(AliTPCseed *const track, Float_t r0, Float_t r1, Float_t r2)
 {
   //
   //
@@ -3784,7 +3945,7 @@ AliTPCseed *AliTPCtrackerMI::MakeSeed(AliTPCseed *track, Float_t r0, Float_t r1,
 }
 
 
-AliTPCseed *AliTPCtrackerMI::ReSeed(AliTPCseed *track, Float_t r0, Float_t r1, Float_t r2)
+AliTPCseed *AliTPCtrackerMI::ReSeed(const AliTPCseed *track, Float_t r0, Float_t r1, Float_t r2)
 {
   //
   //
@@ -3802,8 +3963,8 @@ AliTPCseed *AliTPCtrackerMI::ReSeed(AliTPCseed *track, Float_t r0, Float_t r1, F
   ipos[2] = TMath::Min(int(r2*nclusters),nclusters-1);   // last point
   //
   //
-  Double_t  xyz[3][3];
-  Int_t     row[3],sec[3]={0,0,0};
+  Double_t  xyz[3][3]={{0}};
+  Int_t     row[3]={0},sec[3]={0,0,0};
   //
   // find track row position at given ratio of the length
   Int_t index=-1;
@@ -4051,7 +4212,7 @@ AliTPCseed *AliTPCtrackerMI::ReSeed(AliTPCseed *track,Int_t r0, Bool_t forward)
 
 
 
-void  AliTPCtrackerMI::FindMultiMC(TObjArray * array, AliESDEvent */*esd*/, Int_t iter)
+void  AliTPCtrackerMI::FindMultiMC(const TObjArray * array, AliESDEvent */*esd*/, Int_t iter)
 {
   //
   //  find multi tracks - THIS FUNCTION IS ONLY FOR DEBUG PURPOSES
@@ -4180,7 +4341,7 @@ void  AliTPCtrackerMI::FindMultiMC(TObjArray * array, AliESDEvent */*esd*/, Int_
 	}
       }
       //
-      if (AliTPCReconstructor::StreamLevel()>0) {
+      if (AliTPCReconstructor::StreamLevel()>5) {
       TTreeSRedirector &cstream = *fDebugStreamer;
       cstream<<"Multi"<<
 	"iter="<<iter<<
@@ -4222,6 +4383,8 @@ void  AliTPCtrackerMI::FindMultiMC(TObjArray * array, AliESDEvent */*esd*/, Int_
   }    
   delete [] helixes;
   delete [] xm;
+  delete [] dz0;
+  delete [] dz1;
   if (AliTPCReconstructor::StreamLevel()>1) {
     AliInfo("Time for curling tracks removal DEBUGGING MC");
     timer.Print();
@@ -4229,44 +4392,38 @@ void  AliTPCtrackerMI::FindMultiMC(TObjArray * array, AliESDEvent */*esd*/, Int_
 }
 
 
-void  AliTPCtrackerMI::FindSplitted(TObjArray * array, AliESDEvent */*esd*/, Int_t iter)
-{
-  //
-  //
-  //  Two reasons to have multiple find tracks
-  //  1. Curling tracks can be find more than once
-  //  2. Splitted tracks 
-  //     a.) Multiple seeding to increase tracking efficiency - (~ 100% reached)        
-  //     b.) Edge effect on the sector boundaries
-  //
-  //  This function tries to find tracks closed in the parametric space
-  //
-  // cut logic if distance is bigger than cut continue - Do Nothing
-  const Float_t kMaxdTheta    = 0.05;  // maximal distance in theta
-  const Float_t kMaxdPhi      = 0.05;   // maximal deistance in phi
-  const Float_t kdelta        = 40.;   //delta r to calculate track distance
-  //
-  //  const Float_t kMaxDist0     = 1.;    // maximal distance 0 
-  //const Float_t kMaxDist1     = 0.3;   // maximal distance 1 - cut if track in separate rows 
-  //
-  /*
-    TCut csec("csec","abs(Tr0.fRelativeSector-Tr1.fRelativeSector)<2");
-    TCut cdtheta("cdtheta","abs(dtheta)<0.05");
-  */ 
-  //
+
+void  AliTPCtrackerMI::FindSplitted(TObjArray * array, AliESDEvent */*esd*/, Int_t /*iter*/){
   //
+  // Find Splitted tracks and remove the one with worst quality  
+  // Corresponding debug streamer to tune selections - "Splitted2"
+  // Algorithm:
+  // 0. Sort tracks according quility
+  // 1. Propagate the tracks to the reference radius
+  // 2. Double_t loop to select close tracks (only to speed up process)
+  // 3. Calculate cluster overlap ratio - and remove the track if bigger than a threshold
+  // 4. Delete temporary parameters
+  // 
+  const Double_t xref=GetXrow(63);  // reference radius -IROC/OROC boundary
+  //    rough cuts
+  const Double_t kCutP1=10;       // delta Z cut 10 cm 
+  const Double_t kCutP2=0.15;     // delta snp(fi) cut 0.15 
+  const Double_t kCutP3=0.15;     // delta tgl(theta) cut 0.15
+  const Double_t kCutAlpha=0.15;  // delta alpha cut
+  Int_t firstpoint = 0;
+  Int_t lastpoint = 160;
   //
   Int_t nentries = array->GetEntriesFast();  
-  AliHelix *helixes      = new AliHelix[nentries];
-  Float_t  *xm           = new Float_t[nentries];
+  AliExternalTrackParam *params      = new AliExternalTrackParam[nentries];
   //
   //
   TStopwatch timer;
   timer.Start();
   //
-  //Sort tracks according quality
-  //
+  //0.  Sort tracks according quality
+  //1.  Propagate the ext. param to reference radius
   Int_t nseed = array->GetEntriesFast();  
+  if (nseed<=0) return;
   Float_t * quality = new Float_t[nseed];
   Int_t   * indexes = new Int_t[nseed];
   for (Int_t i=0; i<nseed; i++) {
@@ -4280,155 +4437,116 @@ void  AliTPCtrackerMI::FindSplitted(TObjArray * array, AliESDEvent */*esd*/, Int
     if (points[3]<0.8) quality[i] =-1;
     quality[i] = (points[2]-points[0])+pt->GetNumberOfClusters();
     //prefer high momenta tracks if overlaps
-    quality[i] *= TMath::Sqrt(TMath::Abs(pt->Pt())+0.5); 
+    quality[i] *= TMath::Sqrt(TMath::Abs(pt->Pt())+0.5);
+    params[i]=(*pt);
+    AliTracker::PropagateTrackToBxByBz(&(params[i]),xref,pt->GetMass(),5.,kTRUE);
+    AliTracker::PropagateTrackToBxByBz(&(params[i]),xref,pt->GetMass(),1.,kTRUE);
   }
   TMath::Sort(nseed,quality,indexes);
-
-
-  //
-  // Find track COG in x direction - point with best defined parameters
-  //
-  for (Int_t i=0;i<nentries;i++){
-    AliTPCseed* track = (AliTPCseed*)array->At(i);    
-    if (!track) continue;
-    track->SetCircular(0);
-    new (&helixes[i]) AliHelix(*track);
-    Int_t ncl=0;
-    xm[i]=0;
-    for (Int_t icl=0; icl<160; icl++){
-      AliTPCclusterMI * cl =  track->GetClusterPointer(icl);
-      if (cl) {
-	xm[i]+=cl->GetX();
-	ncl++;
-      }
-    }
-    if (ncl>0) xm[i]/=Float_t(ncl);
-  }  
   //
-  for (Int_t is0=0;is0<nentries;is0++){
-    Int_t i0 = indexes[is0];
-    AliTPCseed * track0 = (AliTPCseed*)array->At(i0);
-    if (!track0) continue;     
-    if (track0->GetKinkIndexes()[0]!=0) continue;
-    Float_t xc0 = helixes[i0].GetHelix(6);
-    Float_t yc0 = helixes[i0].GetHelix(7);
-    Float_t fi0 = TMath::ATan2(yc0,xc0);
-    
-    for (Int_t is1=is0+1;is1<nentries;is1++){
-      Int_t i1 = indexes[is1];
-      AliTPCseed * track1 = (AliTPCseed*)array->At(i1);
-      if (!track1) continue;      
+  // 3. Loop over pair of tracks
+  //
+  for (Int_t i0=0; i0<nseed; i0++) {
+    Int_t index0=indexes[i0];
+    if (!(array->UncheckedAt(index0))) continue;
+    AliTPCseed *s1 = (AliTPCseed*)array->UncheckedAt(index0);  
+    if (!s1->IsActive()) continue;
+    AliExternalTrackParam &par0=params[index0];
+    for (Int_t i1=i0+1; i1<nseed; i1++) {
+      Int_t index1=indexes[i1];
+      if (!(array->UncheckedAt(index1))) continue;
+      AliTPCseed *s2 = (AliTPCseed*)array->UncheckedAt(index1);  
+      if (!s2->IsActive()) continue;
+      if (s2->GetKinkIndexes()[0]!=0)
+	if (s2->GetKinkIndexes()[0] == -s1->GetKinkIndexes()[0]) continue;
+      AliExternalTrackParam &par1=params[index1];
+      if (TMath::Abs(par0.GetParameter()[3]-par1.GetParameter()[3])>kCutP3) continue;
+      if (TMath::Abs(par0.GetParameter()[1]-par1.GetParameter()[1])>kCutP1) continue;
+      if (TMath::Abs(par0.GetParameter()[2]-par1.GetParameter()[2])>kCutP2) continue;
+      Double_t dAlpha= TMath::Abs(par0.GetAlpha()-par1.GetAlpha());
+      if (dAlpha>TMath::Pi()) dAlpha-=TMath::Pi();
+      if (TMath::Abs(dAlpha)>kCutAlpha) continue;
       //
-      if (TMath::Abs(track0->GetRelativeSector()-track1->GetRelativeSector())>1) continue;
-      if (track1->GetKinkIndexes()[0]>0 &&track0->GetKinkIndexes()[0]<0) continue;
-      if (track1->GetKinkIndexes()[0]!=0) continue;
-
-      Float_t dtheta = TMath::Abs(track0->GetTgl()-track1->GetTgl())<TMath::Abs(track0->GetTgl()+track1->GetTgl())? track0->GetTgl()-track1->GetTgl():track0->GetTgl()+track1->GetTgl();
-      if (TMath::Abs(dtheta)>kMaxdTheta) continue;      
-      //
-      Float_t xc1 = helixes[i1].GetHelix(6);
-      Float_t yc1 = helixes[i1].GetHelix(7);
-      Float_t fi1 = TMath::ATan2(yc1,xc1);
+      Int_t sumShared=0;
+      Int_t nall0=0;
+      Int_t nall1=0;
+      Int_t firstShared=lastpoint, lastShared=firstpoint;
+      Int_t firstRow=lastpoint, lastRow=firstpoint;
       //
-      Float_t dfi = fi0-fi1;
-      if (dfi>1.5*TMath::Pi())  dfi-=TMath::Pi();  // take care about edge effect 
-      if (dfi<-1.5*TMath::Pi()) dfi+=TMath::Pi();  // 
-      if (TMath::Abs(dfi)>kMaxdPhi&&helixes[i0].GetHelix(4)*helixes[i1].GetHelix(4)<0){
-	//
-	// if short tracks with undefined sign 
-	fi1 =  -TMath::ATan2(yc1,-xc1);
-	dfi = fi0-fi1;
+      for (Int_t i=firstpoint;i<lastpoint;i++){
+	if (s1->GetClusterIndex2(i)>0) nall0++;
+	if (s2->GetClusterIndex2(i)>0) nall1++;
+	if  (s1->GetClusterIndex2(i)>0 && s2->GetClusterIndex2(i)>0) {
+	  if (i<firstRow) firstRow=i;
+	  if (i>lastRow)  lastRow=i;
+	}
+	if ( (s1->GetClusterIndex2(i))==(s2->GetClusterIndex2(i)) && s1->GetClusterIndex2(i)>0) {
+	  if (i<firstShared) firstShared=i;
+	  if (i>lastShared)  lastShared=i;
+	  sumShared++;
+	}
+      }
+      Double_t ratio0 = Float_t(sumShared)/Float_t(TMath::Min(nall0+1,nall1+1));
+      Double_t ratio1 = Float_t(sumShared)/Float_t(TMath::Max(nall0+1,nall1+1));
+      
+      if( AliTPCReconstructor::StreamLevel()>1){
+	TTreeSRedirector &cstream = *fDebugStreamer;
+	Int_t n0=s1->GetNumberOfClusters();
+	Int_t n1=s2->GetNumberOfClusters();
+	Int_t n0F=s1->GetNFoundable();
+	Int_t n1F=s2->GetNFoundable();
+	Int_t lab0=s1->GetLabel();
+	Int_t lab1=s2->GetLabel();
+
+	cstream<<"Splitted2"<<
+	  "iter="<<fIteration<<
+	  "lab0="<<lab0<<        // MC label if exist
+	  "lab1="<<lab1<<        // MC label if exist
+	  "index0="<<index0<<
+	  "index1="<<index1<<
+ 	  "ratio0="<<ratio0<<      // shared ratio
+ 	  "ratio1="<<ratio1<<      // shared ratio
+	  "p0.="<<&par0<<        // track parameters
+	  "p1.="<<&par1<<
+	  "s0.="<<s1<<           // full seed
+	  "s1.="<<s2<<
+	  "n0="<<n0<<     // number of clusters track 0
+	  "n1="<<n1<<     // number of clusters track 1
+	  "nall0="<<nall0<<     // number of clusters track 0
+	  "nall1="<<nall1<<     // number of clusters track 1
+	  "n0F="<<n0F<<   // number of findable
+	  "n1F="<<n1F<<   // number of findable
+	  "shared="<<sumShared<<    // number of shared clusters
+	  "firstS="<<firstShared<<  // first and the last shared row
+	  "lastS="<<lastShared<<
+	  "firstRow="<<firstRow<<   // first and the last row with cluster
+	  "lastRow="<<lastRow<<     //
+	  "\n";
       }
-      if (TMath::Abs(dfi)>kMaxdPhi) continue;
-      //
-      //      
-      Float_t sum =0;
-      Float_t sums=0;
-      Float_t sum0=0;
-      Float_t sum1=0;
-      for (Int_t icl=0; icl<160; icl++){
-	Int_t index0=track0->GetClusterIndex2(icl);
-	Int_t index1=track1->GetClusterIndex2(icl);       
-	Bool_t used0 = (index0>0 && !(index0&0x8000));
-	Bool_t used1 = (index1>0 && !(index1&0x8000));
-	//
-	if (used0) sum0++;  // used cluster0
-	if (used1) sum1++;  // used clusters1
-	if (used0&&used1) sum++;
-	if (index0==index1 && used0 && used1) sums++;
-      } 
-     
-      //
-      if (sums<10) continue;
-      if (sum<40) continue;
-      if (sums/Float_t(TMath::Min(sum0,sum1))<0.5) continue;
-      //
-      Double_t dist[5][4];   // distance at X 
-      Double_t mdist[4]={0,0,0,0};  // mean distance on range +-delta
-     
-      //
-      //            
-      track0->GetDistance(track1,xm[i0],dist[0],AliTracker::GetBz());
-      for (Int_t i=0;i<3;i++) mdist[i]+=TMath::Abs(dist[0][i]);
-      track0->GetDistance(track1,xm[i1],dist[1],AliTracker::GetBz());
-      for (Int_t i=0;i<3;i++) mdist[i]+=TMath::Abs(dist[1][i]);
-      //
-      track0->GetDistance(track1,TMath::Min(xm[i1],xm[i0])-kdelta,dist[2],AliTracker::GetBz());
-      for (Int_t i=0;i<3;i++) mdist[i]+=TMath::Abs(dist[2][i]);
-      track0->GetDistance(track1,TMath::Max(xm[i1],xm[i0])+kdelta,dist[3],AliTracker::GetBz());
-      for (Int_t i=0;i<3;i++) mdist[i]+=TMath::Abs(dist[3][i]);     
-      //
-      track0->GetDistance(track1,(xm[i1]+xm[i0])*0.5,dist[4],AliTracker::GetBz());
-      for (Int_t i=0;i<3;i++) mdist[i]+=TMath::Abs(dist[4][i]);     
-      for (Int_t i=0;i<3;i++) mdist[i]*=0.2;
       //
+      // remove track with lower quality
       //
-      Int_t lab0=track0->GetLabel();
-      Int_t lab1=track1->GetLabel();
-      if( AliTPCReconstructor::StreamLevel()>5){
-      TTreeSRedirector &cstream = *fDebugStreamer;
-	cstream<<"Splitted"<<
-	  "iter="<<iter<<
-	  "lab0="<<lab0<<
-	  "lab1="<<lab1<<   
-	  "Tr0.="<<track0<<       // seed0
-	  "Tr1.="<<track1<<       // seed1
-	  "h0.="<<&helixes[i0]<<
-	  "h1.="<<&helixes[i1]<<
-	  //
-	  "sum="<<sum<<           //the sum of rows with cl in both
-	  "sum0="<<sum0<<           //the sum of rows with cl in 0 track
-	  "sum1="<<sum1<<           //the sum of rows with cl in 1 track
-	  "sums="<<sums<<         //the sum of shared clusters
-	  "xm0="<<xm[i0]<<        // the center of track
-	  "xm1="<<xm[i1]<<        // the x center of track
-	  // General cut variables                   
-	  "dfi="<<dfi<<           // distance in fi angle
-	  "dtheta="<<dtheta<<     // distance int theta angle
-	  //
-	  //
-	  "dist0="<<dist[4][0]<<     //distance x
-	  "dist1="<<dist[4][1]<<     //distance y
-	  "dist2="<<dist[4][2]<<     //distance z
-	  "mdist0="<<mdist[0]<<   //distance x
-	  "mdist1="<<mdist[1]<<   //distance y
-	  "mdist2="<<mdist[2]<<   //distance z	  
-	  "\n";
+      if (ratio0>AliTPCReconstructor::GetRecoParam()->GetCutSharedClusters(0) ||
+	  ratio1>AliTPCReconstructor::GetRecoParam()->GetCutSharedClusters(1)){
+	//
+	//
+	//
+	delete array->RemoveAt(index1);
       }
-      delete array->RemoveAt(i1);
     }
-  }    
-  delete [] helixes;
-  delete [] xm;
+  }
+  //
+  // 4. Delete temporary array
+  //
+  delete [] params; 
   delete [] quality;
   delete [] indexes;
-  AliInfo("Time for splitted tracks removal");
-  timer.Print();
+
 }
 
 
 
-void  AliTPCtrackerMI::FindCurling(TObjArray * array, AliESDEvent */*esd*/, Int_t iter)
+void  AliTPCtrackerMI::FindCurling(const TObjArray * array, AliESDEvent */*esd*/, Int_t iter)
 {
   //
   //  find Curling tracks
@@ -4489,7 +4607,8 @@ void  AliTPCtrackerMI::FindCurling(TObjArray * array, AliESDEvent */*esd*/, Int_
   //
   TStopwatch timer;
   timer.Start();
-  Double_t phase[2][2],radius[2];
+  Double_t phase[2][2]={{0,0},{0,0}},radius[2]={0,0};
+
   //
   // Find tracks
   //
@@ -4585,7 +4704,7 @@ void  AliTPCtrackerMI::FindCurling(TObjArray * array, AliESDEvent */*esd*/, Int_
 	    track0->SetCircular(track0->GetCircular()+2);
 	  }
 	}		
-	if (AliTPCReconstructor::StreamLevel()>1){	  
+	if (AliTPCReconstructor::StreamLevel()>2){	  
 	  //
 	  //debug stream to tune "fine" cuts	  
 	  Int_t lab0=track0->GetLabel();
@@ -4701,7 +4820,7 @@ void  AliTPCtrackerMI::FindKinks(TObjArray * array, AliESDEvent *esd)
   Int_t ncandidates =0;
   Int_t nall =0;
   Int_t ntracks=0; 
-  Double_t phase[2][2],radius[2];
+  Double_t phase[2][2]={{0,0},{0,0}},radius[2]={0,0};
 
   //
   // Find circling track
@@ -4942,8 +5061,8 @@ void  AliTPCtrackerMI::FindKinks(TObjArray * array, AliESDEvent *esd)
 
       Float_t x[3] = { kink->GetPosition()[0],kink->GetPosition()[1],kink->GetPosition()[2]};
       Int_t index[4];
-      fParam->Transform0to1(x,index);
-      fParam->Transform1to2(x,index);
+      fkParam->Transform0to1(x,index);
+      fkParam->Transform1to2(x,index);
       row0 = GetRowNumber(x[0]); 
 
       if (kink->GetR()<100) continue;
@@ -5022,6 +5141,30 @@ void  AliTPCtrackerMI::FindKinks(TObjArray * array, AliESDEvent *esd)
 	kink->SetShapeFactor(shapesum/sum);
       }      
       //      esd->AddKink(kink);
+      //
+      //      kink->SetMother(paramm);
+      //kink->SetDaughter(paramd);
+ 
+      Double_t chi2P2 = paramm.GetParameter()[2]-paramd.GetParameter()[2];
+      chi2P2*=chi2P2;
+      chi2P2/=paramm.GetCovariance()[5]+paramd.GetCovariance()[5];
+      Double_t chi2P3 = paramm.GetParameter()[3]-paramd.GetParameter()[3];
+      chi2P3*=chi2P3;
+      chi2P3/=paramm.GetCovariance()[9]+paramd.GetCovariance()[9];
+      //
+      if (AliTPCReconstructor::StreamLevel()>1) {
+	(*fDebugStreamer)<<"kinkLpt"<<
+	  "chi2P2="<<chi2P2<<
+	  "chi2P3="<<chi2P3<<
+	  "p0.="<<&paramm<<
+	  "p1.="<<&paramd<<
+	  "k.="<<kink<<
+	  "\n";
+      }
+      if ( chi2P2+chi2P3<AliTPCReconstructor::GetRecoParam()->GetKinkAngleCutChi2(0)){
+	continue;
+      }
+      //
       kinks->AddLast(kink);
       kink = new AliKink;
       ncandidates++;
@@ -5104,7 +5247,8 @@ void  AliTPCtrackerMI::FindKinks(TObjArray * array, AliESDEvent *esd)
     AliKink * kink0 = (AliKink*) kinks->At(indexes[ikink0]);
     if (!kink0) continue;
     //
-    for (Int_t ikink1=0;ikink1<ikink0;ikink1++){
+    for (Int_t ikink1=0;ikink1<ikink0;ikink1++){ 
+      kink0 = (AliKink*) kinks->At(indexes[ikink0]);
       if (!kink0) continue;
       AliKink * kink1 = (AliKink*) kinks->At(indexes[ikink1]);
       if (!kink1) continue;
@@ -5157,6 +5301,7 @@ void  AliTPCtrackerMI::FindKinks(TObjArray * array, AliESDEvent *esd)
 	  shared[kink0->GetIndex(0)]= kTRUE;
 	  shared[kink0->GetIndex(1)]= kTRUE;	  
 	  delete kinks->RemoveAt(indexes[ikink0]);
+	  break;
 	}
 	else{
 	  shared[kink1->GetIndex(0)]= kTRUE;
@@ -5317,369 +5462,12 @@ void  AliTPCtrackerMI::FindKinks(TObjArray * array, AliESDEvent *esd)
   kinks->Delete();
   delete kinks;
 
-  printf("Ncandidates=\t%d\t%d\t%d\t%d\n",esd->GetNumberOfKinks(),ncandidates,ntracks,nall);
+  AliInfo(Form("Ncandidates=\t%d\t%d\t%d\t%d\n",esd->GetNumberOfKinks(),ncandidates,ntracks,nall));
   timer.Print();
 }
 
-void  AliTPCtrackerMI::FindV0s(TObjArray * array, AliESDEvent *esd)
-{
-  //
-  //  find V0s
-  //
-  //
-  TObjArray *tpcv0s      = new TObjArray(100000);
-  Int_t     nentries     = array->GetEntriesFast();
-  AliHelix *helixes      = new AliHelix[nentries];
-  Int_t    *sign         = new Int_t[nentries];
-  Float_t  *alpha        = new Float_t[nentries];
-  Float_t  *z0           = new Float_t[nentries]; 
-  Float_t  *dca          = new Float_t[nentries];
-  Float_t  *sdcar        = new Float_t[nentries];
-  Float_t  *cdcar        = new Float_t[nentries];
-  Float_t  *pulldcar     = new Float_t[nentries];
-  Float_t  *pulldcaz     = new Float_t[nentries];
-  Float_t  *pulldca      = new Float_t[nentries];
-  Bool_t   *isPrim       = new Bool_t[nentries];  
-  const AliESDVertex * primvertex = esd->GetVertex();
-  Double_t             zvertex = primvertex->GetZv(); 
-  //
-  //  nentries = array->GetEntriesFast();
-  //
-  for (Int_t i=0;i<nentries;i++){
-    sign[i]=0;
-    isPrim[i]=0;
-    AliTPCseed* track = (AliTPCseed*)array->At(i);    
-    if (!track) continue;
-    track->GetV0Indexes()[0] = 0;  //rest v0 indexes
-    track->GetV0Indexes()[1] = 0;  //rest v0 indexes
-    track->GetV0Indexes()[2] = 0;  //rest v0 indexes
-    //
-    alpha[i] = track->GetAlpha();
-    new (&helixes[i]) AliHelix(*track);
-    Double_t xyz[3];
-    helixes[i].Evaluate(0,xyz);
-    sign[i] = (track->GetC()>0) ? -1:1;
-    Double_t x,y,z;
-    x=160;
-    z0[i]=1000;
-    if (track->GetProlongation(0,y,z))  z0[i] = z;
-    dca[i] = track->GetD(0,0);
-    // 
-    // dca error parrameterezation + pulls
-    //
-    sdcar[i]      = TMath::Sqrt(0.150*0.150+(100*track->GetC())*(100*track->GetC()));
-    if (TMath::Abs(track->GetTgl())>1) sdcar[i]*=2.5;
-    cdcar[i]      = TMath::Exp((TMath::Abs(track->GetC())-0.0106)*525.3);
-    pulldcar[i]   = (dca[i]-cdcar[i])/sdcar[i];
-    pulldcaz[i]   = (z0[i]-zvertex)/sdcar[i];
-    pulldca[i]    = TMath::Sqrt(pulldcar[i]*pulldcar[i]+pulldcaz[i]*pulldcaz[i]);
-    if (track->TPCrPID(1)+track->TPCrPID(2)+track->TPCrPID(3)>0.5) {
-      if (pulldca[i]<3.) isPrim[i]=kTRUE;  //pion, muon and Kaon  3 sigma cut
-    }
-    if (track->TPCrPID(4)>0.5) {
-      if (pulldca[i]<0.5) isPrim[i]=kTRUE;  //proton 0.5 sigma cut
-    }
-    if (track->TPCrPID(0)>0.4) {
-      isPrim[i]=kFALSE;  //electron no  sigma cut
-    }
-  }
-  //
-  //
-  TStopwatch timer;
-  timer.Start();
-  Int_t ncandidates =0;
-  Int_t nall =0;
-  Int_t ntracks=0; 
-  Double_t phase[2][2],radius[2];
-  //
-  //  Finf V0s loop
-  // 
-  //
-  // //  
-  Float_t fprimvertex[3]={GetX(),GetY(),GetZ()};
-  AliV0 vertex; 
-  Double_t cradius0 = 10*10;
-  Double_t cradius1 = 200*200;
-  Double_t cdist1=3.;
-  Double_t cdist2=4.;
-  Double_t cpointAngle = 0.95;
-  //
-  Double_t delta[2]={10000,10000};
-  for (Int_t i =0;i<nentries;i++){
-    if (sign[i]==0) continue;
-    AliTPCseed * track0 = (AliTPCseed*)array->At(i);
-    if (!track0) continue;
-    if (AliTPCReconstructor::StreamLevel()>1){
-      TTreeSRedirector &cstream = *fDebugStreamer;
-      cstream<<"Tracks"<<
-	"Tr0.="<<track0<<
-	"dca="<<dca[i]<<
-	"z0="<<z0[i]<<
-	"zvertex="<<zvertex<<
-	"sdcar0="<<sdcar[i]<<
-	"cdcar0="<<cdcar[i]<<
-	"pulldcar0="<<pulldcar[i]<<
-	"pulldcaz0="<<pulldcaz[i]<<
-	"pulldca0="<<pulldca[i]<<
-	"isPrim="<<isPrim[i]<<
-	"\n";
-    }
-    //
-    if (track0->GetSigned1Pt()<0) continue;
-    if (track0->GetKinkIndex(0)>0||isPrim[i]) continue;   //daughter kink
-    //
-    if (TMath::Abs(helixes[i].GetHelix(4))<0.000000001) continue;
-    ntracks++;
-    // debug output
-    
-    
-    for (Int_t j =0;j<nentries;j++){
-      AliTPCseed * track1 = (AliTPCseed*)array->At(j);
-      if (!track1) continue;
-      if (track1->GetKinkIndex(0)>0 || isPrim[j]) continue; //daughter kink
-      if (sign[j]*sign[i]>0) continue; 
-      if (TMath::Abs(helixes[j].GetHelix(4))<0.000001) continue;
-      if (track0->GetCircular()+track1->GetCircular()>1) continue;    //circling -returning track
-      nall++;
-      //
-      // DCA to prim vertex cut
-      //
-      //
-      delta[0]=10000;
-      delta[1]=10000;
-
-      Int_t npoints = helixes[i].GetRPHIintersections(helixes[j], phase, radius,cdist2);
-      if (npoints<1) continue;
-      Int_t iclosest=0;
-      // cuts on radius      
-      if (npoints==1){
-	if (radius[0]<cradius0||radius[0]>cradius1) continue;
-	helixes[i].LinearDCA(helixes[j],phase[0][0],phase[0][1],radius[0],delta[0]);
-	if (delta[0]>cdist1) continue;
-      }
-      else{
-	if (TMath::Max(radius[0],radius[1])<cradius0|| TMath::Min(radius[0],radius[1])>cradius1) continue;	
-	helixes[i].LinearDCA(helixes[j],phase[0][0],phase[0][1],radius[0],delta[0]);	
-	helixes[i].LinearDCA(helixes[j],phase[1][0],phase[1][1],radius[1],delta[1]);
-	if (delta[1]<delta[0]) iclosest=1;
-	if (delta[iclosest]>cdist1) continue;
-      }
-      helixes[i].ParabolicDCA(helixes[j],phase[iclosest][0],phase[iclosest][1],radius[iclosest],delta[iclosest]);
-      if (radius[iclosest]<cradius0 || radius[iclosest]>cradius1 || delta[iclosest]>cdist1) continue;
-      //
-      Double_t pointAngle = helixes[i].GetPointAngle(helixes[j],phase[iclosest],fprimvertex);
-      if (pointAngle<cpointAngle) continue;
-      //
-      Bool_t isGamma = kFALSE;
-      vertex.SetParamP(*track0); //track0 - plus
-      vertex.SetParamN(*track1); //track1 - minus
-      vertex.Update(fprimvertex);
-      if (track0->TPCrPID(0)>0.3&&track1->TPCrPID(0)>0.3&&vertex.GetAnglep()[2]<0.15) isGamma=kTRUE;              // gamma conversion candidate
-      Double_t pointAngle2 = vertex.GetV0CosineOfPointingAngle();
-      //continue;
-      if (vertex.GetV0CosineOfPointingAngle()<cpointAngle && (!isGamma)) continue;// point angle cut
-      //Bo:      if (vertex.GetDist2()>2&&(!isGamma)) continue;      // point angle cut
-      if (vertex.GetDcaV0Daughters()>2&&(!isGamma)) continue;//Bo:   // point angle cut
-      Float_t sigmae     = 0.15*0.15;
-      if (vertex.GetRr()<80) 
-	sigmae += (sdcar[i]*sdcar[i]+sdcar[j]*sdcar[j])*(1.-vertex.GetRr()/80.)*(1.-vertex.GetRr()/80.);
-      sigmae+= TMath::Sqrt(sigmae);
-      //Bo:      if (vertex.GetDist2()/sigmae>3.&&(!isGamma)) continue; 
-      if (vertex.GetDcaV0Daughters()/sigmae>3.&&(!isGamma)) continue; 
-      Float_t densb0=0,densb1=0,densa0=0,densa1=0;
-      Int_t row0 = GetRowNumber(vertex.GetRr());
-      if (row0>15){
-	//Bo:	if (vertex.GetDist2()>0.2) continue;             
-	if (vertex.GetDcaV0Daughters()>0.2) continue;             
-	densb0     = track0->Density2(0,row0-5);          
-	densb1     = track1->Density2(0,row0-5);         
-	if (densb0>0.3|| densb1>0.3) continue;            //clusters before vertex
-	densa0     = track0->Density2(row0+5,row0+40);    
-	densa1     = track1->Density2(row0+5,row0+40);    
-	if ((densa0<0.4|| densa1<0.4)&&(!isGamma)) continue;            //missing clusters after vertex
-      }
-      else{
-	densa0     = track0->Density2(0,40);  //cluster density
-	densa1     = track1->Density2(0,40);  //cluster density
-	if ((vertex.GetRr()<80&&densa0+densa1<1.)&&(!isGamma)) continue;
-      }
-//Bo:        vertex.SetLab(0,track0->GetLabel());
-//Bo:        vertex.SetLab(1,track1->GetLabel());
-      vertex.SetChi2After((densa0+densa1)*0.5);
-      vertex.SetChi2Before((densb0+densb1)*0.5);
-      vertex.SetIndex(0,i);
-      vertex.SetIndex(1,j);
-//Bo:      vertex.SetStatus(1); // TPC v0 candidate
-      vertex.SetOnFlyStatus(2);//Bo: // TPC v0 candidate
-//Bo:        vertex.SetRp(track0->TPCrPIDs());
-//Bo:        vertex.SetRm(track1->TPCrPIDs());
-      tpcv0s->AddLast(new AliESDv0(vertex));      
-      ncandidates++;
-      {
-	Int_t eventNr = esd->GetEventNumberInFile(); // This is most likely NOT the event number you'd like to use. It has nothing to do with the 'real' event number
-	Double_t radiusm= (delta[0]<delta[1])? TMath::Sqrt(radius[0]):TMath::Sqrt(radius[1]);  
-	Double_t deltam= (delta[0]<delta[1])? TMath::Sqrt(delta[0]):TMath::Sqrt(delta[1]);  
-	if (AliTPCReconstructor::StreamLevel()>1) {
-	  Int_t lab0=track0->GetLabel();
-	  Int_t lab1=track1->GetLabel();
-	  Char_t c0=track0->GetCircular();
-	  Char_t c1=track1->GetCircular();
-          TTreeSRedirector &cstream = *fDebugStreamer;
-	  cstream<<"V0"<<
-	  "Event="<<eventNr<<
-	  "vertex.="<<&vertex<<
-	  "Tr0.="<<track0<<
-	  "lab0="<<lab0<<
-	  "Helix0.="<<&helixes[i]<<	
-	  "Tr1.="<<track1<<
-	  "lab1="<<lab1<<
-	  "Helix1.="<<&helixes[j]<<
-	  "pointAngle="<<pointAngle<<
-	  "pointAngle2="<<pointAngle2<<
-	  "dca0="<<dca[i]<<
-	  "dca1="<<dca[j]<<
-	  "z0="<<z0[i]<<
-	  "z1="<<z0[j]<<
-	  "zvertex="<<zvertex<<
-	  "circular0="<<c0<<
-	  "circular1="<<c1<<
-	  "npoints="<<npoints<<
-	  "radius0="<<radius[0]<<
-	  "delta0="<<delta[0]<<
-	  "radius1="<<radius[1]<<
-	  "delta1="<<delta[1]<<
-	  "radiusm="<<radiusm<<
-	  "deltam="<<deltam<<
-	  "sdcar0="<<sdcar[i]<<
-	  "sdcar1="<<sdcar[j]<<
-	  "cdcar0="<<cdcar[i]<<
-	  "cdcar1="<<cdcar[j]<<
-	  "pulldcar0="<<pulldcar[i]<<
-	  "pulldcar1="<<pulldcar[j]<<
-	  "pulldcaz0="<<pulldcaz[i]<<
-	  "pulldcaz1="<<pulldcaz[j]<<
-	  "pulldca0="<<pulldca[i]<<
-	  "pulldca1="<<pulldca[j]<<
-	  "densb0="<<densb0<<
-	  "densb1="<<densb1<<
-	  "densa0="<<densa0<<
-	  "densa1="<<densa1<<
-	  "sigmae="<<sigmae<<
-	    "\n";}
-      }
-    }
-  }    
-  Float_t *quality = new Float_t[ncandidates];
-  Int_t *indexes = new Int_t[ncandidates];
-  Int_t naccepted =0;
-  for (Int_t i=0;i<ncandidates;i++){
-    quality[i]     = 0; 
-    AliESDv0 *v0 = (AliESDv0*)tpcv0s->At(i);
-    quality[i]     = 1./(1.00001-v0->GetV0CosineOfPointingAngle());   //base point angle
-    // quality[i]    /= (0.5+v0->GetDist2());  
-    // quality[i]    *= v0->GetChi2After();               //density factor
-
-    Int_t index0 = v0->GetIndex(0);
-    Int_t index1 = v0->GetIndex(1);
-    //Bo:    Double_t minpulldca = TMath::Min(2.+pulldca[v0->GetIndex(0)],(2.+pulldca[v0->GetIndex(1)]) );     //pull
-    Double_t minpulldca = TMath::Min(2.+pulldca[index0],(2.+pulldca[index1]) );//Bo:
-
-
-
-    AliTPCseed * track0 = (AliTPCseed*)array->At(index0);
-    AliTPCseed * track1 = (AliTPCseed*)array->At(index1);
-    if (track0->TPCrPID(0)>0.3&&track1->TPCrPID(0)>0.3&&v0->GetAnglep()[2]<0.15) quality[i]+=1000000;              // gamma conversion candidate
-    if (track0->TPCrPID(4)>0.9||(track1->TPCrPID(4)>0.9&&minpulldca>4)) quality[i]*=10;    // lambda candidate candidate
-  }
-
-  TMath::Sort(ncandidates,quality,indexes,kTRUE);
-  //
-  //
-  for (Int_t i=0;i<ncandidates;i++){
-    AliESDv0 * v0 = (AliESDv0*)tpcv0s->At(indexes[i]);
-    if (!v0) continue;
-    Int_t index0 = v0->GetIndex(0);
-    Int_t index1 = v0->GetIndex(1);
-    AliTPCseed * track0 = (AliTPCseed*)array->At(index0);
-    AliTPCseed * track1 = (AliTPCseed*)array->At(index1);
-    if (!track0||!track1) {
-      printf("Bug\n");
-      continue;
-    }
-    Bool_t accept =kTRUE;  //default accept
-    Int_t *v0indexes0 = track0->GetV0Indexes();
-    Int_t *v0indexes1 = track1->GetV0Indexes();
-    //
-    Int_t order0 = (v0indexes0[0]!=0) ? 1:0;
-    Int_t order1 = (v0indexes1[0]!=0) ? 1:0;    
-    if (v0indexes0[1]!=0) order0 =2;
-    if (v0indexes1[1]!=0) order1 =2;      
-    //
-    if (v0indexes0[2]!=0) {order0=3; accept=kFALSE;}
-    if (v0indexes0[2]!=0) {order1=3; accept=kFALSE;}
-    //
-    AliESDv0 * v02 = v0;
-    if (accept){
-      //Bo:      v0->SetOrder(0,order0);
-      //Bo:      v0->SetOrder(1,order1);
-      //Bo:      v0->SetOrder(1,order0+order1);     
-      v0->SetOnFlyStatus(kTRUE);
-      Int_t index = esd->AddV0(v0);
-      v02 = esd->GetV0(index);
-      v0indexes0[order0]=index;
-      v0indexes1[order1]=index;
-      naccepted++;
-    }
-    {
-      Int_t eventNr = esd->GetEventNumberInFile(); // This is most likely NOT the event number you'd like to use. It has nothing to do with the 'real' event number
-      if (AliTPCReconstructor::StreamLevel()>1) {
-	Int_t lab0=track0->GetLabel();
-	Int_t lab1=track1->GetLabel();
-        TTreeSRedirector &cstream = *fDebugStreamer;
-	cstream<<"V02"<<
-	"Event="<<eventNr<<
-	"vertex.="<<v0<<	
-	"vertex2.="<<v02<<
-	"Tr0.="<<track0<<
-	"lab0="<<lab0<<
-	"Tr1.="<<track1<<
-	"lab1="<<lab1<<
-	"dca0="<<dca[index0]<<
-	"dca1="<<dca[index1]<<
-	"order0="<<order0<<
-	"order1="<<order1<<
-	"accept="<<accept<<
-	"quality="<<quality[i]<<
-	"pulldca0="<<pulldca[index0]<<
-	"pulldca1="<<pulldca[index1]<<
-	"index="<<i<<
-	  "\n";}
-    }
-  }    
-
-
-  //
-  //
-  delete []quality;
-  delete []indexes;
-//
-  delete [] isPrim;
-  delete [] pulldca;
-  delete [] pulldcaz;
-  delete [] pulldcar;
-  delete [] cdcar;
-  delete [] sdcar;
-  delete [] dca;
-  //
-  delete[] z0;
-  delete[] alpha;
-  delete[] sign;
-  delete[] helixes;
-  printf("TPC V0 finder : naccepted\t%d\tncandidates\t%d\tntracks\t%d\tnall\t%d\n",naccepted,ncandidates,ntracks,nall);
-  timer.Print();
-}
 
-Int_t AliTPCtrackerMI::RefitKink(AliTPCseed &mother, AliTPCseed &daughter, AliESDkink &knk)
+Int_t AliTPCtrackerMI::RefitKink(AliTPCseed &mother, AliTPCseed &daughter, const AliESDkink &knk)
 {
   //
   // refit kink towards to the vertex
@@ -5821,7 +5609,7 @@ void AliTPCtrackerMI::UpdateKinkQualityD(AliTPCseed * seed){
 }
 
 
-Int_t  AliTPCtrackerMI::CheckKinkPoint(AliTPCseed*seed,AliTPCseed &mother, AliTPCseed &daughter, AliESDkink &knk)
+Int_t  AliTPCtrackerMI::CheckKinkPoint(AliTPCseed*seed,AliTPCseed &mother, AliTPCseed &daughter, const AliESDkink &knk)
 {
   //
   // check kink point for given track
@@ -5948,11 +5736,36 @@ Int_t  AliTPCtrackerMI::CheckKinkPoint(AliTPCseed*seed,AliTPCseed &mother, AliTP
     delete seed1;
     return 0;
   }
+
   //  Float_t anglesigma = TMath::Sqrt(param0[index].fC22+param0[index].fC33+param1[index].fC22+param1[index].fC33);
   
   kink.SetMother(param0[index]);
   kink.SetDaughter(param1[index]);
   kink.Update();
+
+  Double_t chi2P2 = param0[index].GetParameter()[2]-param1[index].GetParameter()[2];
+  chi2P2*=chi2P2;
+  chi2P2/=param0[index].GetCovariance()[5]+param1[index].GetCovariance()[5];
+  Double_t chi2P3 = param0[index].GetParameter()[3]-param1[index].GetParameter()[3];
+  chi2P3*=chi2P3;
+  chi2P3/=param0[index].GetCovariance()[9]+param1[index].GetCovariance()[9];
+  //
+  if (AliTPCReconstructor::StreamLevel()>1) {
+    (*fDebugStreamer)<<"kinkHpt"<<
+      "chi2P2="<<chi2P2<<
+      "chi2P3="<<chi2P3<<
+      "p0.="<<&param0[index]<<
+      "p1.="<<&param1[index]<<
+      "k.="<<&kink<<
+      "\n";
+  }
+  if ( chi2P2+chi2P3<AliTPCReconstructor::GetRecoParam()->GetKinkAngleCutChi2(0)){
+    delete seed0;
+    delete seed1;
+    return 0; 
+  }
+
+
   row0    = GetRowNumber(kink.GetR());   
   kink.SetTPCRow0(row0);
   kink.SetLabel(CookLabel(seed0,0.5,0,row0),0);
@@ -5967,9 +5780,12 @@ Int_t  AliTPCtrackerMI::CheckKinkPoint(AliTPCseed*seed,AliTPCseed &mother, AliTP
   daughter = param1[index];
   daughter.SetLabel(kink.GetLabel(1));  
   param0[index].Reset(kTRUE);
-  FollowProlongation(param0[index],0);  
+  FollowProlongation(param0[index],0);    
   mother = param0[index];
   mother.SetLabel(kink.GetLabel(0));
+  if ( chi2P2+chi2P3<AliTPCReconstructor::GetRecoParam()->GetKinkAngleCutChi2(1)){
+    mother=*seed;
+  }
   delete seed0;
   delete seed1;
   //
@@ -6044,14 +5860,16 @@ Int_t AliTPCtrackerMI::ReadSeeds(const TFile *inp) {
   return 0;
 }
 
-Int_t AliTPCtrackerMI::Clusters2Tracks (AliESDEvent *esd)
+Int_t AliTPCtrackerMI::Clusters2Tracks (AliESDEvent *const esd)
 {
   //
+  
   if (fSeeds) DeleteSeeds();
   fEvent = esd;
   Clusters2Tracks();
   if (!fSeeds) return 1;
   FillESD(fSeeds);
+  if (AliTPCReconstructor::StreamLevel()>3)  DumpClusters(0,fSeeds);
   return 0;
   //
 }
@@ -6094,10 +5912,10 @@ Int_t AliTPCtrackerMI::Clusters2Tracks() {
   RemoveUsed2(fSeeds,0.85,0.85,0);
   if (AliTPCReconstructor::GetRecoParam()->GetDoKinks()) FindKinks(fSeeds,fEvent);
   //FindCurling(fSeeds, fEvent,0);  
-  if (AliTPCReconstructor::StreamLevel()>2)  FindMultiMC(fSeeds, fEvent,-1); // find multi found tracks
+  if (AliTPCReconstructor::StreamLevel()>5)  FindMultiMC(fSeeds, fEvent,-1); // find multi found tracks
   RemoveUsed2(fSeeds,0.5,0.4,20);
   FindSplitted(fSeeds, fEvent,0); // find multi found tracks
-  if (AliTPCReconstructor::StreamLevel()>2)  FindMultiMC(fSeeds, fEvent,0); // find multi found tracks
+  if (AliTPCReconstructor::StreamLevel()>5)  FindMultiMC(fSeeds, fEvent,0); // find multi found tracks
 
  //  //
 //   // refit short tracks
@@ -6267,6 +6085,9 @@ TObjArray * AliTPCtrackerMI::Tracking()
 
   TObjArray * seeds = new TObjArray;
   TObjArray * arr=0;
+  Int_t fLastSeedRowSec=AliTPCReconstructor::GetRecoParam()->GetLastSeedRowSec();
+  Int_t gapPrim = AliTPCReconstructor::GetRecoParam()->GetSeedGapPrim();
+  Int_t gapSec = AliTPCReconstructor::GetRecoParam()->GetSeedGapSec();
   
   Int_t gap =20;
   Float_t cuts[4];
@@ -6280,7 +6101,7 @@ TObjArray * AliTPCtrackerMI::Tracking()
   //  
   //find primaries  
   cuts[0]=0.0066;
-  for (Int_t delta = 0; delta<18; delta+=6){
+  for (Int_t delta = 0; delta<18; delta+=gapPrim){
     //
     cuts[0]=0.0070;
     cuts[1] = 1.5;
@@ -6305,7 +6126,7 @@ TObjArray * AliTPCtrackerMI::Tracking()
 
   //find primaries  
   cuts[0]=0.0077;
-  for (Int_t delta = 20; delta<120; delta+=10){
+  for (Int_t delta = 20; delta<120; delta+=gapPrim){
     //
     // seed high pt tracks
     cuts[0]=0.0060;
@@ -6358,9 +6179,22 @@ TObjArray * AliTPCtrackerMI::Tracking()
   SumTracks(seeds,arr);   
   SignClusters(seeds,fnumber,fdensity);   
   //
+  arr = Tracking(4,nup-5,nup-5-gap,cuts,-1);
+  SumTracks(seeds,arr);   
+  SignClusters(seeds,fnumber,fdensity);   
+  //
+  arr = Tracking(4,nup-7,nup-7-gap,cuts,-1);
+  SumTracks(seeds,arr);   
+  SignClusters(seeds,fnumber,fdensity);   
+  //
+  //
+  arr = Tracking(4,nup-9,nup-9-gap,cuts,-1);
+  SumTracks(seeds,arr);   
+  SignClusters(seeds,fnumber,fdensity);   
+  //
 
 
-  for (Int_t delta = 3; delta<30; delta+=5){
+  for (Int_t delta = 9; delta<30; delta+=gapSec){
     //
     cuts[0] = 0.3;
     cuts[1] = 1.5;
@@ -6383,10 +6217,9 @@ TObjArray * AliTPCtrackerMI::Tracking()
   fdensity = 2.;
   cuts[0]=0.0080;
 
-  Int_t fLastSeedRowSec=AliTPCReconstructor::GetRecoParam()->GetLastSeedRowSec();
 
   // find secondaries
-  for (Int_t delta = 30; delta<fLastSeedRowSec; delta+=10){
+  for (Int_t delta = 30; delta<fLastSeedRowSec; delta+=gapSec){
     //
     cuts[0] = 0.3;
     cuts[1] = 3.5;
@@ -6501,7 +6334,7 @@ void AliTPCtrackerMI::SumTracks(TObjArray *arr1,TObjArray *&arr2) const
 
 
 
-void  AliTPCtrackerMI::ParallelTracking(TObjArray * arr, Int_t rfirst, Int_t rlast)
+void  AliTPCtrackerMI::ParallelTracking(TObjArray *const arr, Int_t rfirst, Int_t rlast)
 {
   //
   // try to track in parralel
@@ -6513,7 +6346,7 @@ void  AliTPCtrackerMI::ParallelTracking(TObjArray * arr, Int_t rfirst, Int_t rla
     if (!pt) continue;
     if (!t.IsActive()) continue;
     // follow prolongation to the first layer
-    if ( (fSectors ==fInnerSec) || (t.GetFirstPoint()-fParam->GetNRowLow()>rfirst+1) )  
+    if ( (fSectors ==fInnerSec) || (t.GetFirstPoint()-fkParam->GetNRowLow()>rfirst+1) )  
       FollowProlongation(t, rfirst+1);
   }
 
@@ -6532,7 +6365,7 @@ void  AliTPCtrackerMI::ParallelTracking(TObjArray * arr, Int_t rfirst, Int_t rla
       if (!pt) continue;
       if (nr==80) pt->UpdateReference();
       if (!pt->IsActive()) continue;
-      //      if ( (fSectors ==fOuterSec) && (pt->fFirstPoint-fParam->GetNRowLow())<nr) continue;
+      //      if ( (fSectors ==fOuterSec) && (pt->fFirstPoint-fkParam->GetNRowLow())<nr) continue;
       if (pt->GetRelativeSector()>17) {
 	continue;
       }
@@ -6543,7 +6376,7 @@ void  AliTPCtrackerMI::ParallelTracking(TObjArray * arr, Int_t rfirst, Int_t rla
       AliTPCseed *pt=(AliTPCseed*)arr->UncheckedAt(i); 
       if (!pt) continue;
       if (!pt->IsActive()) continue; 
-      // if ((fSectors ==fOuterSec) && (pt->fFirstPoint-fParam->GetNRowLow())<nr) continue;
+      // if ((fSectors ==fOuterSec) && (pt->fFirstPoint-fkParam->GetNRowLow())<nr) continue;
       if (pt->GetRelativeSector()>17) {
 	continue;
       }
@@ -6552,7 +6385,7 @@ void  AliTPCtrackerMI::ParallelTracking(TObjArray * arr, Int_t rfirst, Int_t rla
   }    
 }
 
-void AliTPCtrackerMI::PrepareForBackProlongation(TObjArray * arr,Float_t fac) const
+void AliTPCtrackerMI::PrepareForBackProlongation(TObjArray *const arr,Float_t fac) const
 {
   //
   //
@@ -6574,7 +6407,7 @@ void AliTPCtrackerMI::PrepareForBackProlongation(TObjArray * arr,Float_t fac) co
       Float_t angle2 = pt->GetAlpha();
       
       if (TMath::Abs(angle1-angle2)>0.001){
-	pt->Rotate(angle1-angle2);
+	if (!pt->Rotate(angle1-angle2)) return;
 	//angle2 = pt->GetAlpha();
 	//pt->fRelativeSector = pt->GetAlpha()/fInnerSec->GetAlpha();
 	//if (pt->GetAlpha()<0) 
@@ -6588,7 +6421,7 @@ void AliTPCtrackerMI::PrepareForBackProlongation(TObjArray * arr,Float_t fac) co
 
 
 }
-void AliTPCtrackerMI::PrepareForProlongation(TObjArray * arr, Float_t fac) const
+void AliTPCtrackerMI::PrepareForProlongation(TObjArray *const arr, Float_t fac) const
 {
   //
   //
@@ -6607,7 +6440,7 @@ void AliTPCtrackerMI::PrepareForProlongation(TObjArray * arr, Float_t fac) const
 
 }
 
-Int_t AliTPCtrackerMI::PropagateBack(TObjArray * arr)
+Int_t AliTPCtrackerMI::PropagateBack(TObjArray *const arr)
 {
   //
   // make back propagation
@@ -6638,7 +6471,7 @@ Int_t AliTPCtrackerMI::PropagateBack(TObjArray * arr)
 }
 
 
-Int_t AliTPCtrackerMI::PropagateForward2(TObjArray * arr)
+Int_t AliTPCtrackerMI::PropagateForward2(TObjArray *const arr)
 {
   //
   // make forward propagation
@@ -6686,7 +6519,7 @@ Int_t AliTPCtrackerMI::PropagateForward()
 
 
 
-Int_t AliTPCtrackerMI::PropagateBack(AliTPCseed * pt, Int_t row0, Int_t row1)
+Int_t AliTPCtrackerMI::PropagateBack(AliTPCseed *const pt, Int_t row0, Int_t row1)
 {
   //
   // make back propagation, in between row0 and row1
@@ -6723,24 +6556,29 @@ void  AliTPCtrackerMI::GetShape(AliTPCseed * seed, Int_t row)
   //
   // 
   AliTPCClusterParam * clparam = AliTPCcalibDB::Instance()->GetClusterParam();
-  Float_t zdrift = TMath::Abs((fParam->GetZLength(0)-TMath::Abs(seed->GetZ())));
-  Int_t type = (seed->GetSector() < fParam->GetNSector()/2) ? 0: (row>126) ? 1:2;
+  Float_t zdrift = TMath::Abs((fkParam->GetZLength(0)-TMath::Abs(seed->GetZ())));
+  Int_t type = (seed->GetSector() < fkParam->GetNSector()/2) ? 0: (row>126) ? 1:2;
   Double_t angulary  = seed->GetSnp();
-  angulary = angulary*angulary/(1.-angulary*angulary);
+
+  if (TMath::Abs(angulary)>AliTPCReconstructor::GetMaxSnpTracker()) {
+    angulary = TMath::Sign(AliTPCReconstructor::GetMaxSnpTracker(),angulary);
+  }
+
+  angulary = angulary*angulary/((1.-angulary)*(1.+angulary));
   Double_t angularz  = seed->GetTgl()*seed->GetTgl()*(1.+angulary);
   
   Double_t sigmay =  clparam->GetRMS0(0,type,zdrift,TMath::Sqrt(TMath::Abs(angulary)));
   Double_t sigmaz =  clparam->GetRMS0(1,type,zdrift,TMath::Sqrt(TMath::Abs(angularz)));
   seed->SetCurrentSigmaY2(sigmay*sigmay);
   seed->SetCurrentSigmaZ2(sigmaz*sigmaz);
-  // Float_t sd2 = TMath::Abs((fParam->GetZLength(0)-TMath::Abs(seed->GetZ())))*fParam->GetDiffL()*fParam->GetDiffL();
-//   //  Float_t padlength =  fParam->GetPadPitchLength(seed->fSector);
+  // Float_t sd2 = TMath::Abs((fkParam->GetZLength(0)-TMath::Abs(seed->GetZ())))*fkParam->GetDiffL()*fkParam->GetDiffL();
+//   //  Float_t padlength =  fkParam->GetPadPitchLength(seed->fSector);
 //   Float_t padlength =  GetPadPitchLength(row);
 //   //
-//   Float_t sresy = (seed->GetSector() < fParam->GetNSector()/2) ? 0.2 :0.3;
+//   Float_t sresy = (seed->GetSector() < fkParam->GetNSector()/2) ? 0.2 :0.3;
 //   seed->SetCurrentSigmaY2(sd2+padlength*padlength*angulary/12.+sresy*sresy);  
 //   //
-//   Float_t sresz = fParam->GetZSigma();
+//   Float_t sresz = fkParam->GetZSigma();
 //   seed->SetCurrentSigmaZ2(sd2+padlength*padlength*angularz*angularz*(1+angulary)/12.+sresz*sresz);
   /*
   Float_t wy = GetSigmaY(seed);
@@ -6817,14 +6655,14 @@ void AliTPCtrackerMI::CookLabel(AliKalmanTrack *tk, Float_t wrong) const {
     if (TMath::Abs(c->GetLabel(1)) == lab ||
         TMath::Abs(c->GetLabel(2)) == lab ) max++;
   }
-
-  if ((1.- Float_t(max)/noc) > wrong) lab=-lab;
+  if (noc<=0) { lab=-1; return;}
+  if ((1.- Float_t(max)/(noc)) > wrong) lab=-lab;
 
   else {
      Int_t tail=Int_t(0.10*noc);
      max=0;
      Int_t ind=0;
-     for (i=1; i<=160&&ind<tail; i++) {
+     for (i=1; i<160&&ind<tail; i++) {
        //       AliTPCclusterMI *c=clusters[noc-i];
        AliTPCclusterMI *c=clusters[i];
        if (!c) continue;
@@ -6845,7 +6683,7 @@ void AliTPCtrackerMI::CookLabel(AliKalmanTrack *tk, Float_t wrong) const {
 
 
 //__________________________________________________________________________
-Int_t AliTPCtrackerMI::CookLabel(AliTPCseed *t, Float_t wrong,Int_t first, Int_t last) const {
+Int_t AliTPCtrackerMI::CookLabel(AliTPCseed *const t, Float_t wrong,Int_t first, Int_t last) const {
   //--------------------------------------------------------------------
   //This function "cooks" a track label. If label<0, this track is fake.
   //--------------------------------------------------------------------
@@ -6880,7 +6718,7 @@ Int_t AliTPCtrackerMI::CookLabel(AliTPCseed *t, Float_t wrong,Int_t first, Int_t
      }
   }
   noc = current;
-  if (noc<5) return -1;
+  //if (noc<5) return -1;
   Int_t lab=123456789;
   for (i=0; i<noc; i++) {
     AliTPCclusterMI *c=clusters[i];
@@ -6901,14 +6739,14 @@ Int_t AliTPCtrackerMI::CookLabel(AliTPCseed *t, Float_t wrong,Int_t first, Int_t
     if (TMath::Abs(c->GetLabel(1)) == lab ||
         TMath::Abs(c->GetLabel(2)) == lab ) max++;
   }
-
-  if ((1.- Float_t(max)/noc) > wrong) lab=-lab;
+  if (noc<=0) { lab=-1; return -1;}
+  if ((1.- Float_t(max)/(noc)) > wrong) lab=-lab;
 
   else {
      Int_t tail=Int_t(0.10*noc);
      max=0;
      Int_t ind=0;
-     for (i=1; i<=160&&ind<tail; i++) {
+     for (i=1; i<160&&ind<tail; i++) {
        //       AliTPCclusterMI *c=clusters[noc-i];
        AliTPCclusterMI *c=clusters[i];
        if (!c) continue;
@@ -6951,11 +6789,14 @@ void AliTPCtrackerMI::MakeBitmaps(AliTPCseed *t)
   Int_t firstpoint = 0;
   Int_t lastpoint = 159;
   AliTPCTrackerPoint *point;
+  AliTPCclusterMI    *cluster;
   
   for (int iter=firstpoint; iter<lastpoint; iter++) {
-    point = t->GetTrackPoint(iter);
-    if (point) {
+    // Change to cluster pointers to see if we have a cluster at given padrow
+    cluster = t->GetClusterPointer(iter);
+    if (cluster) {
       t->SetClusterMapBit(iter, kTRUE);
+      point = t->GetTrackPoint(iter);
       if (point->IsShared())
 	t->SetSharedMapBit(iter,kTRUE);
       else
@@ -6976,7 +6817,7 @@ Bool_t AliTPCtrackerMI::IsFindable(AliTPCseed & track){
   Float_t z = track.GetZ();
   
   if (TMath::Abs(z)<(AliTPCReconstructor::GetCtgRange()*track.GetX()+kDeltaZ) && 
-      TMath::Abs(z)<fParam->GetZLength(0) && 
+      TMath::Abs(z)<fkParam->GetZLength(0) && 
       (TMath::Abs(track.GetSnp())<AliTPCReconstructor::GetMaxSnpTracker()))
     return kTRUE;
   return kFALSE;      
@@ -6989,6 +6830,7 @@ void AliTPCtrackerMI::AddCovariance(AliTPCseed * seed){
   // !!!! the systematic error for element 4 is in 1/cm not in pt 
 
   const Double_t *param = AliTPCReconstructor::GetRecoParam()->GetSystematicError();
+  Double_t *covarIn= (Double_t*)seed->GetCovariance();
   Double_t covar[15];
   for (Int_t i=0;i<15;i++) covar[i]=0;
   // 0
@@ -7002,5 +6844,20 @@ void AliTPCtrackerMI::AddCovariance(AliTPCseed * seed){
   covar[9] = param[3]*param[3];
   Double_t facC =  AliTracker::GetBz()*kB2C;
   covar[14]= param[4]*param[4]*facC*facC;
+  //
+  covar[1]=TMath::Sqrt((covar[0]*covar[2]))*covarIn[1]/TMath::Sqrt((covarIn[0]*covarIn[2]));
+  //
+  covar[3]=TMath::Sqrt((covar[0]*covar[5]))*covarIn[3]/TMath::Sqrt((covarIn[0]*covarIn[5]));
+  covar[4]=TMath::Sqrt((covar[2]*covar[5]))*covarIn[4]/TMath::Sqrt((covarIn[2]*covarIn[5]));
+  //
+  covar[6]=TMath::Sqrt((covar[0]*covar[9]))*covarIn[6]/TMath::Sqrt((covarIn[0]*covarIn[9]));
+  covar[7]=TMath::Sqrt((covar[2]*covar[9]))*covarIn[7]/TMath::Sqrt((covarIn[2]*covarIn[9]));
+  covar[8]=TMath::Sqrt((covar[5]*covar[9]))*covarIn[8]/TMath::Sqrt((covarIn[5]*covarIn[9]));
+  //
+  covar[10]=TMath::Sqrt((covar[0]*covar[14]))*covarIn[10]/TMath::Sqrt((covarIn[0]*covarIn[14]));
+  covar[11]=TMath::Sqrt((covar[2]*covar[14]))*covarIn[11]/TMath::Sqrt((covarIn[2]*covarIn[14]));
+  covar[12]=TMath::Sqrt((covar[5]*covar[14]))*covarIn[12]/TMath::Sqrt((covarIn[5]*covarIn[14]));
+  covar[13]=TMath::Sqrt((covar[9]*covar[14]))*covarIn[13]/TMath::Sqrt((covarIn[9]*covarIn[14]));
+  //
   seed->AddCovariance(covar);
 }