+
/**************************************************************************
* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
* *
/* $Id$ */
+#include "TVectorT.h"
#include "AliLog.h"
#include "AliESDtrack.h"
#include "AliTracker.h"
#include "AliTRDcluster.h"
#include "AliTRDcalibDB.h"
#include "AliTRDReconstructor.h"
+#include "AliTRDPIDResponse.h"
#include "AliTRDrecoParam.h"
+#include "AliTRDdEdxBaseUtils.h"
+#include "AliTRDdEdxCalibHistArray.h"
+#include "AliTRDdEdxCalibUtils.h"
+#include "AliTRDdEdxReconUtils.h"
ClassImp(AliTRDtrackV1)
,fStatus(0)
,fESDid(0)
,fDE(0.)
+ ,fTruncatedMean(0)
+ ,fNchamberdEdx(0)
+ ,fNclusterdEdx(0)
+ ,fNdEdxSlices(0)
,fkReconstructor(NULL)
,fBackupTrack(NULL)
,fTrackLow(NULL)
fTrackletIndex[ip] = -1;
fTracklet[ip] = NULL;
}
+ SetLabel(-123456789); // reset label
}
//_______________________________________________________________
,fStatus(ref.fStatus)
,fESDid(ref.fESDid)
,fDE(ref.fDE)
+ ,fTruncatedMean(ref.fTruncatedMean)
+ ,fNchamberdEdx(ref.fNchamberdEdx)
+ ,fNclusterdEdx(ref.fNclusterdEdx)
+ ,fNdEdxSlices(ref.fNdEdxSlices)
,fkReconstructor(ref.fkReconstructor)
,fBackupTrack(NULL)
,fTrackLow(NULL)
,fStatus(0)
,fESDid(0)
,fDE(0.)
+ ,fTruncatedMean(0)
+ ,fNchamberdEdx(0)
+ ,fNclusterdEdx(0)
+ ,fNdEdxSlices(0)
,fkReconstructor(NULL)
,fBackupTrack(NULL)
,fTrackLow(NULL)
SetLabel(t.GetLabel());
SetChi2(0.0);
- SetMass(t.GetMass()/*0.000510*/);
+ SetMass(t.GetMass(kTRUE));
AliKalmanTrack::SetNumberOfClusters(t.GetTRDncls());
Int_t ti[]={-1, -1, -1, -1, -1, -1}; t.GetTRDtracklets(&ti[0]);
for(int ip=0; ip<kNplane; ip++){
for(int is =0; is<AliPID::kSPECIES; is++) fPID[is] = pid;
const AliExternalTrackParam *par = &t;
- if (t.GetStatus() & AliESDtrack::kTRDbackup) {
+ if (t.GetStatus() & AliESDtrack::kTRDbackup) {
par = t.GetOuterParam();
if (!par) {
AliError("No backup info!");
,fStatus(0)
,fESDid(0)
,fDE(0.)
+ ,fTruncatedMean(0)
+ ,fNchamberdEdx(0)
+ ,fNclusterdEdx(0)
+ ,fNdEdxSlices(0)
,fkReconstructor(NULL)
,fBackupTrack(NULL)
,fTrackLow(NULL)
Float_t pid = 1./AliPID::kSPECIES;
for(int is =0; is<AliPID::kSPECIES; is++) fPID[is] = pid;
+ SetLabel(-123456789); // reset label
}
//_______________________________________________________________
AliTRDtrackV1::~AliTRDtrackV1()
{
- //AliInfo("");
- //printf("I-AliTRDtrackV1::~AliTRDtrackV1() : Owner[%s]\n", TestBit(kOwner)?"YES":"NO");
+ // Clean up all objects allocated by the track during its lifetime.
+ AliDebug(2, Form("Deleting track[%d]\n fBackupTrack[%p] fTrackLow[%p] fTrackHigh[%p] Owner[%c].", fESDid, (void*)fBackupTrack, (void*)fTrackLow, (void*)fTrackHigh, TestBit(kOwner)?'y':'n'));
if(fBackupTrack) delete fBackupTrack; fBackupTrack = NULL;
//
if (this != &t) {
+ AliKalmanTrack::operator=(t);
((AliTRDtrackV1 &) t).Copy(*this);
}
}
//_______________________________________________________________
-Bool_t AliTRDtrackV1::CookLabel(Float_t wrong)
+Int_t AliTRDtrackV1::CookLabel(Float_t wrong, Int_t *labs, Float_t *freq)
{
- // set MC label for this track
- if(!GetNumberOfClusters()) return kFALSE;
+// Set MC label for this track
+// On demand i.e. if arrays "labs" and "freq" are allocated by user returns :
+// nlabs = the no of distinct labels
+// labs = array of distinct labels in decreasing order of frequency
+// freq = frequency of each label in decreasing order
+
+ Int_t ncl(0);
+ if(!(ncl = GetNumberOfClusters())) return 0;
- Int_t s[kMAXCLUSTERSPERTRACK][2];
+ Int_t s[2][kMAXCLUSTERSPERTRACK];
for (Int_t i = 0; i < kMAXCLUSTERSPERTRACK; i++) {
- s[i][0] = -1;
- s[i][1] = 0;
+ s[0][i] = -1;
+ s[1][i] = 0;
}
-
- Bool_t labelAdded;
- Int_t label;
- AliTRDcluster *c = NULL;
- for (Int_t ip = 0; ip < kNplane; ip++) {
+
+ Int_t label(-123456789), nlabels(0);
+ AliTRDcluster *c(NULL);
+ for (Int_t ip(0); ip < AliTRDgeometry::kNlayer; ip++) {
if(fTrackletIndex[ip]<0 || !fTracklet[ip]) continue;
- for (Int_t ic = 0; ic < AliTRDseedV1::kNclusters; ic++) {
+ for (Int_t ic(0); ic < AliTRDseedV1::kNclusters; ic++) {
if(!(c = fTracklet[ip]->GetClusters(ic))) continue;
- for (Int_t k = 0; k < 3; k++) {
- label = c->GetLabel(k);
- labelAdded = kFALSE;
- Int_t j = 0;
- if (label >= 0) {
- while ((!labelAdded) && (j < kMAXCLUSTERSPERTRACK)) {
- if ((s[j][0] == label) ||
- (s[j][1] == 0)) {
- s[j][0] = label;
- s[j][1]++;
- labelAdded = kTRUE;
- }
- j++;
- }
+ for (Int_t k(0); k < 3; k++) {
+ if ((label = c->GetLabel(k)) < 0) continue;
+ Int_t j(0);
+ while(j < kMAXCLUSTERSPERTRACK){
+ if(s[0][j]!=label && s[1][j]!=0){j++; continue;}
+ if(!s[1][j]) nlabels++;
+ s[0][j] = label; s[1][j]++;
+ break;
}
}
}
}
-
- Int_t max = 0;
- label = -123456789;
- for (Int_t i = 0; i < kMAXCLUSTERSPERTRACK; i++) {
- if (s[i][1] <= max) continue;
- max = s[i][1];
- label = s[i][0];
+ //printf(" Found %4d labels\n", nlabels);
+ Float_t prob(1.);
+ if(!nlabels){
+ AliError(Form("No MC labels found for track %d.", fESDid));
+ return 0;
+ } else if(nlabels==1) {
+ label = s[0][0];
+ if(labs && freq){labs[0]=label; freq[0]=1.;}
+ } else {
+ Int_t idx[kMAXCLUSTERSPERTRACK];
+ TMath::Sort(nlabels, s[1], idx);
+ label = s[0][idx[0]]; prob = s[1][idx[0]]/Float_t(ncl);
+ if(labs && freq){
+ for (Int_t i(0); i<nlabels; i++){
+ labs[i] = s[0][idx[i]];
+ freq[i] = s[1][idx[i]]/Float_t(ncl);
+ }
+ }
}
- if ((1. - Float_t(max)/GetNumberOfClusters()) > wrong) label = -label;
-
- SetLabel(label);
-
- return kTRUE;
+ SetLabel((1.-prob > wrong)?-label:label);
+ return nlabels;
}
//_______________________________________________________________
//<img src="TRD/trackPID.gif">
//End_Html
//
-
- /*Reset the a priori probabilities*/
- Double_t pid = 1. / AliPID::kSPECIES;
- for(int ispec=0; ispec<AliPID::kSPECIES; ispec++) fPID[ispec] = pid;
-
- UChar_t fPIDquality = SetNumberOfTrackletsPID(kTRUE);
- // no tracklet found for PID calculations
- if(!fPIDquality) return kFALSE;
-
- // slot for PID calculation @ track level for bremsstrahlung TODO
-
- // normalize probabilities
- Double_t probTotal = 0.0;
- for (Int_t is = 0; is < AliPID::kSPECIES; is++) probTotal += fPID[is];
-
-
- if (probTotal <= 0.0) {
- AliWarning("The total probability over all species <= 0. This may be caused by some error in the reference data.");
+ const AliTRDPIDResponse *pidResponse = AliTRDcalibDB::Instance()->GetPIDResponse(fkReconstructor->GetRecoParam()->GetPIDmethod());
+ if(!pidResponse){
+ AliError("PID Response not available");
return kFALSE;
}
-
- for (Int_t iSpecies = 0; iSpecies < AliPID::kSPECIES; iSpecies++) fPID[iSpecies] /= probTotal;
-
+ Double_t dEdx[kNplane * (Int_t)AliTRDseedV1::kNdEdxSlices] = {0.};
+ Float_t trackletP[kNplane] = {0.};
+
+ fNdEdxSlices = pidResponse->GetNumberOfSlices();
+ for(Int_t iseed = 0; iseed < kNplane; iseed++){
+ if(!fTracklet[iseed]) continue;
+ trackletP[iseed] = fTracklet[iseed]->GetMomentum();
+// if(pidResponse->GetPIDmethod() == AliTRDPIDResponse::kLQ1D){
+ dEdx[iseed] = fTracklet[iseed]->GetdQdl();
+/* } else {
+ fTracklet[iseed]->CookdEdx(fNdEdxSlices);
+ const Float_t *trackletdEdx = fTracklet[iseed]->GetdEdx();
+ for(Int_t islice = 0; islice < fNdEdxSlices; islice++){
+ dEdx[iseed*fNdEdxSlices + islice] = trackletdEdx[islice];
+ }
+ }*/
+ }
+ pidResponse->GetResponse(fNdEdxSlices, dEdx, trackletP, fPID);
+
+ static Int_t nprint = 0;
+ if(!nprint){
+ AliTRDdEdxBaseUtils::PrintControl();
+ nprint++;
+ }
+
+ //do truncated mean
+ AliTRDdEdxCalibUtils::SetObjArray(AliTRDcalibDB::Instance()->GetPHQ());
+ const Double_t mag = AliTRDdEdxBaseUtils::IsExBOn() ? GetBz() : -1;
+ const Double_t charge = AliTRDdEdxBaseUtils::IsExBOn() ? Charge() : -1;
+ fTruncatedMean = CookTruncatedMean(0, mag, charge, kTRUE, fNchamberdEdx, fNclusterdEdx);
+
return kTRUE;
}
// Retrieve number of tracklets used for PID calculation.
UChar_t nPID = 0;
- Float_t *prob = NULL;
for(int ip=0; ip<kNplane; ip++){
if(fTrackletIndex[ip]<0 || !fTracklet[ip]) continue;
if(!fTracklet[ip]->IsOK()) continue;
- if(!(prob = fTracklet[ip]->GetProbability(kFALSE))) continue;
-
- Int_t nspec = 0; // quality check of tracklet dEdx
- for(int ispec=0; ispec<AliPID::kSPECIES; ispec++){
- if(prob[ispec] < 0.) continue;
- nspec++;
- }
- if(!nspec) continue;
- fTracklet[ip]->SetPID();
nPID++;
}
return nPID;
}
-//___________________________________________________________
-UChar_t AliTRDtrackV1::SetNumberOfTrackletsPID(Bool_t recalc)
-{
-// Retrieve number of tracklets used for PID calculation. // Recalculated PID at tracklet level by quering the PID DB.
-
- UChar_t fPIDquality(0);
-
- // steer PID calculation @ tracklet level
- Float_t *prob(NULL);
- for(int ip=0; ip<kNplane; ip++){
- if(fTrackletIndex[ip]<0 || !fTracklet[ip]) continue;
- if(!fTracklet[ip]->IsOK()) continue;
- if(!(prob = fTracklet[ip]->GetProbability(recalc))) return 0;
-
- Int_t nspec = 0; // quality check of tracklet dEdx
- for(int ispec=0; ispec<AliPID::kSPECIES; ispec++){
- if(prob[ispec] < 0.) continue;
- fPID[ispec] *= prob[ispec];
- nspec++;
- }
- if(!nspec) continue;
-
- fPIDquality++;
- }
- return fPIDquality;
-}
-
//_______________________________________________________________
AliTRDcluster* AliTRDtrackV1::GetCluster(Int_t id)
{
n+=fTracklet[ip]->GetN();
continue;
}
- AliTRDcluster *c = NULL;
for(Int_t ic=AliTRDseedV1::kNclusters; ic--;){
- if(!(c = fTracklet[ip]->GetClusters(ic))) continue;
-
+ if(!(fTracklet[ip]->GetClusters(ic))) continue;
if(n<id){n++; continue;}
return fTracklet[ip]->GetIndexes(ic);
}
//if ( fPIDquality != inTrack->GetPIDquality() ) return kFALSE;
- for(Int_t i = 0; i < AliPID::kSPECIES; i++){
- if ( fPID[i] != inTrack->GetPID(i) ) return kFALSE;
- }
-
- for (Int_t i = 0; i < 3; i++){
- if ( fBudget[i] != inTrack->GetBudget(i) ) return kFALSE;
- }
- if ( fDE != inTrack->GetEdep() ) return kFALSE;
- if ( fFakeRatio != inTrack->GetFakeRatio() ) return kFALSE;
- if ( fChi2 != inTrack->GetChi2() ) return kFALSE;
- if ( fMass != inTrack->GetMass() ) return kFALSE;
- if ( fLab != inTrack->GetLabel() ) return kFALSE;
- if ( fN != inTrack->GetNumberOfClusters() ) return kFALSE;
- if ( AliKalmanTrack::GetIntegratedLength() != inTrack->GetIntegratedLength() ) return kFALSE;
-
- if ( GetX() != inTrack->GetX() ) return kFALSE;
- if ( GetAlpha() != inTrack->GetAlpha() ) return kFALSE;
- const Double_t *inP = inTrack->GetParameter();
- const Double_t *curP = GetParameter();
- for (Int_t i = 0; i < 5; i++){
- if ( curP[i] != inP[i]) return kFALSE;
- }
- const Double_t *inC = inTrack->GetCovariance();
- const Double_t *curC = GetCovariance();
- for (Int_t i = 0; i < 15; i++){
- if ( curC[i] != inC[i]) return kFALSE;
- }
+ if(memcmp(fPID, inTrack->fPID, AliPID::kSPECIES*sizeof(Double32_t))) return kFALSE;
+ if(memcmp(fBudget, inTrack->fBudget, 3*sizeof(Double32_t))) return kFALSE;
+ if(memcmp(&fDE, &inTrack->fDE, sizeof(Double32_t))) return kFALSE;
+ if(memcmp(&fFakeRatio, &inTrack->fFakeRatio, sizeof(Double32_t))) return kFALSE;
+ if(memcmp(&fChi2, &inTrack->fChi2, sizeof(Double32_t))) return kFALSE;
+ if(memcmp(&fMass, &inTrack->fMass, sizeof(Double32_t))) return kFALSE;
+ if( fLab != inTrack->fLab ) return kFALSE;
+ if( fN != inTrack->fN ) return kFALSE;
+ Double32_t l(0.), in(0.);
+ l = GetIntegratedLength(); in = inTrack->GetIntegratedLength();
+ if(memcmp(&l, &in, sizeof(Double32_t))) return kFALSE;
+ l=GetX(); in=inTrack->GetX();
+ if(memcmp(&l, &in, sizeof(Double32_t))) return kFALSE;
+ l = GetAlpha(); in = inTrack->GetAlpha();
+ if(memcmp(&l, &in, sizeof(Double32_t))) return kFALSE;
+ if(memcmp(GetParameter(), inTrack->GetParameter(), 5*sizeof(Double32_t))) return kFALSE;
+ if(memcmp(GetCovariance(), inTrack->GetCovariance(), 15*sizeof(Double32_t))) return kFALSE;
for (Int_t iTracklet = 0; iTracklet < kNplane; iTracklet++){
AliTRDseedV1 *curTracklet = fTracklet[iTracklet];
for(Int_t il(AliTRDgeometry::kNlayer); il--;){
if(!fTracklet[il]) continue;
n++;
- occupancy+=fTracklet[il]->GetOccupancyTB();
+ occupancy+=fTracklet[il]->GetTBoccupancy()/AliTRDseedV1::kNtb;
ncls += fTracklet[il]->GetN();
}
if(!n) return -1;
// "xrho" - thickness*density [g/cm^2]
//
- if (xk == GetX()) return kTRUE;
+ if (TMath::Abs(xk - GetX())<AliTRDReconstructor::GetEpsilon()*0.1) return kTRUE; // 10% of the tracker precision
Double_t xyz0[3] = {GetX(), GetY(), GetZ()}, // track position BEFORE propagation
b[3]; // magnetic field
// local track position AFTER propagation
Double_t xyz1[3] = {GetX(), GetY(), GetZ()};
+// printf("x0[%6.2f] -> x1[%6.2f] dx[%6.2f] rho[%f]\n", xyz0[0], xyz1[0], xyz0[0]-xk, xrho/TMath::Abs(xyz0[0]-xk));
if(xyz0[0] < xk) {
xrho = -xrho;
if (IsStartedTimeIntegral()) {
AddTimeStep(l2);
}
}
-
- if (!AliExternalTrackParam::CorrectForMeanMaterial(xx0, xrho, GetMass())) return kFALSE;
+ if (!AliExternalTrackParam::CorrectForMeanMaterial(xx0, xrho, fMass)) return kFALSE;
{
// Energy losses
Double_t p2 = (1.0 + GetTgl()*GetTgl()) / (GetSigned1Pt()*GetSigned1Pt());
- Double_t beta2 = p2 / (p2 + GetMass()*GetMass());
+ Double_t beta2 = p2 / (p2 + fMass*fMass);
if ((beta2 < 1.0e-10) ||
((5940.0 * beta2/(1.0 - beta2 + 1.0e-10) - beta2) < 0.0)) {
return kFALSE;
/*
// Suspicious ! I.B.
Double_t sigmade = 0.07 * TMath::Sqrt(TMath::Abs(dE)); // Energy loss fluctuation
- Double_t sigmac2 = sigmade*sigmade*fC*fC*(p2+GetMass()*GetMass())/(p2*p2);
+ Double_t sigmac2 = sigmade*sigmade*fC*fC*(p2+fMass*fMass)/(p2*p2);
fCcc += sigmac2;
fCee += fX*fX * sigmac2;
*/
//
const AliExternalTrackParam *op = dynamic_cast<const AliExternalTrackParam*>(this);
+ //printf("SetTrackIn() : fTrackLow[%p]\n", (void*)fTrackLow);
if(fTrackLow){
fTrackLow->~AliExternalTrackParam();
new(fTrackLow) AliExternalTrackParam(*op);
//_______________________________________________________________
void AliTRDtrackV1::UnsetTracklet(Int_t plane)
{
- if(plane<0 && plane >= kNplane) return;
+ if(plane<0) return;
fTrackletIndex[plane] = -1;
fTracklet[plane] = NULL;
}
// Update the TRD PID information in the ESD track
//
- Int_t nslices = fkReconstructor->GetRecoParam()->IsEightSlices() ? (Int_t)AliTRDpidUtil::kNNslices : (Int_t)AliTRDpidUtil::kLQslices;
+// Int_t nslices = AliTRDcalibDB::Instance()->GetPIDResponse(fkReconstructor->GetRecoParam()->GetPIDmethod())->GetNumberOfSlices();
// number of tracklets used for PID calculation
UChar_t nPID = GetNumberOfTrackletsPID();
// number of tracklets attached to the track
// pack the two numbers together and store them in the ESD
track->SetTRDntracklets(nPID | (nTrk<<3));
// allocate space to store raw PID signals dEdx & momentum
- track->SetNumberOfTRDslices((nslices+2)*AliTRDgeometry::kNlayer);
+ // independent of the method used to calculate PID (see below AliTRDPIDResponse)
+ track->SetNumberOfTRDslices((AliTRDseedV1::kNdEdxSlices+2)*AliTRDgeometry::kNlayer);
// store raw signals
Float_t p, sp; Double_t spd;
for (Int_t ip = 0; ip < kNplane; ip++) {
if(fTrackletIndex[ip]<0 || !fTracklet[ip]) continue;
- if(!fTracklet[ip]->HasPID()) continue;
+ // Fill TRD dEdx info into ESD track
+ // a. Set Summed dEdx into the first slice
+ track->SetTRDslice(fTracklet[ip]->GetdQdl(), ip, 0);
+ // b. Set NN dEdx slices
+ fTracklet[ip]->CookdEdx(AliTRDPIDResponse::kNslicesNN);
const Float_t *dedx = fTracklet[ip]->GetdEdx();
- for (Int_t js = 0; js < nslices; js++, dedx++) track->SetTRDslice(*dedx, ip, js);
+ for (Int_t js(0), ks(1); js < AliTRDPIDResponse::kNslicesNN; js++, ks++, dedx++){
+ if(ks>=AliTRDseedV1::kNdEdxSlices){
+ AliError(Form("Exceed allocated space for dEdx slices."));
+ break;
+ }
+ track->SetTRDslice(*dedx, ip, ks);
+ }
+ // fill TRD momentum info into ESD track
p = fTracklet[ip]->GetMomentum(&sp); spd = sp;
track->SetTRDmomentum(p, ip, &spd);
+ // store global quality per tracklet instead of momentum error
+ // 26.09.11 A.Bercuci
+ // first implementation store no. of time bins filled in tracklet (5bits see "y" bits) and
+ // no. of double clusters in case of pad row cross (4bits see "x" bits)
+ // bit map for tracklet quality xxxxyyyyy
+ // 27.10.11 A.Bercuci
+ // add chamber status bit "z" bit
+ // bit map for tracklet quality zxxxxyyyyy
+ // 12.11.11 A.Bercuci
+ // fit tracklet quality into the field fTRDTimeBin [Char_t]
+ // bit map for tracklet quality zxxyyyyy
+ // The information should be retrieved by the following functions of AliESDtrack for each TRD layer
+ // GetTRDtrkltOccupancy(layer) -> no of TB filled in tracklet
+ // GetTRDtrkltClCross(layer) -> no of TB filled in crossing pad rows
+ // IsTRDtrkltChmbGood(layer) -> status of the chamber from which the tracklet is found
+ Int_t nCross(fTracklet[ip]->IsRowCross()?fTracklet[ip]->GetTBcross():0); if(nCross>3) nCross = 3;
+ Char_t trackletQ = Char_t(fTracklet[ip]->GetTBoccupancy() | (nCross<<5) | (fTracklet[ip]->IsChmbGood()<<7));
+ track->SetTRDTimBin(trackletQ, ip);
}
// store PID probabilities
track->SetTRDpid(fPID);
+
+ //store truncated mean
+ track->SetTRDsignal(fTruncatedMean);
+ track->SetTRDNchamberdEdx(fNchamberdEdx);
+ track->SetTRDNclusterdEdx(fNclusterdEdx);
+}
+
+//_______________________________________________________________
+Double_t AliTRDtrackV1::CookTruncatedMean(const Bool_t kinvq, const Double_t mag, const Int_t charge, const Int_t kcalib, Int_t &nch, Int_t &ncls, TVectorD *Qs, TVectorD *Xs, Int_t timeBin0, Int_t timeBin1, Int_t tstep) const
+{
+ //
+ //Origin: Xianguo Lu <xianguo.lu@cern.ch>, Marian Ivanov <marian.ivanov@cern.ch>
+ //
+
+ TVectorD arrayQ(200), arrayX(200);
+ ncls = AliTRDdEdxReconUtils::GetArrayClusterQ(kinvq, &arrayQ, &arrayX, this, timeBin0, timeBin1, tstep);
+
+ const TObjArray *cobj = kcalib ? AliTRDdEdxCalibUtils::GetObj(kinvq, mag, charge) : NULL;
+
+ const Double_t tmean = AliTRDdEdxReconUtils::ToyCook(kinvq, ncls, &arrayQ, &arrayX, cobj);
+
+ nch = AliTRDdEdxReconUtils::UpdateArrayX(ncls, &arrayX);
+
+ if(Qs && Xs){
+ (*Qs)=arrayQ;
+ (*Xs)=arrayX;
+ }
+
+ //printf("\ntest %.10f %d %d\n", tmean, nch, ncls);
+
+ return tmean;
+}
+
+//_______________________________________________________________
+TObject* AliTRDtrackV1::Clone(const char* newname) const
+{
+ // temporary override TObject::Clone to avoid crashes in reco
+ AliTRDtrackV1* src = (AliTRDtrackV1*)this;
+ Bool_t isown = src->IsOwner();
+ AliInfo(Form("src_owner %d",isown));
+ AliTRDtrackV1* dst = new AliTRDtrackV1(*src);
+ if (isown) {
+ src->SetBit(kOwner);
+ dst->SetOwner();
+ }
+ return dst;
}