// Cut names
const Char_t* AliESDtrackCuts::fgkCutNames[kNCuts] = {
"require TPC refit",
+ "require TPC standalone",
"require ITS refit",
"n clusters TPC",
"n clusters ITS",
fCutMaxC55(0),
fCutMaxRel1PtUncertainty(0),
fCutAcceptKinkDaughters(0),
+ fCutAcceptSharedTPCClusters(0),
+ fCutMaxFractionSharedTPCClusters(0),
fCutRequireTPCRefit(0),
+ fCutRequireTPCStandAlone(0),
fCutRequireITSRefit(0),
fCutRequireITSStandAlone(0),
fCutNsigmaToVertex(0),
SetMaxCovDiagonalElements();
SetMaxRel1PtUncertainty();
SetRequireTPCRefit();
+ SetRequireTPCStandAlone();
SetRequireITSRefit();
SetRequireITSStandAlone(kFALSE);
SetAcceptKinkDaughters();
fCutMaxC55(0),
fCutMaxRel1PtUncertainty(0),
fCutAcceptKinkDaughters(0),
+ fCutAcceptSharedTPCClusters(0),
+ fCutMaxFractionSharedTPCClusters(0),
fCutRequireTPCRefit(0),
+ fCutRequireTPCStandAlone(0),
fCutRequireITSRefit(0),
fCutRequireITSStandAlone(0),
fCutNsigmaToVertex(0),
fCutMaxRel1PtUncertainty = 0;
fCutAcceptKinkDaughters = 0;
+ fCutAcceptSharedTPCClusters = 0;
+ fCutMaxFractionSharedTPCClusters = 0;
fCutRequireTPCRefit = 0;
+ fCutRequireTPCStandAlone = 0;
fCutRequireITSRefit = 0;
fCutRequireITSStandAlone = 0;
target.fCutMaxRel1PtUncertainty = fCutMaxRel1PtUncertainty;
target.fCutAcceptKinkDaughters = fCutAcceptKinkDaughters;
+ target.fCutAcceptSharedTPCClusters = fCutAcceptSharedTPCClusters;
+ target.fCutMaxFractionSharedTPCClusters = fCutMaxFractionSharedTPCClusters;
target.fCutRequireTPCRefit = fCutRequireTPCRefit;
+ target.fCutRequireTPCStandAlone = fCutRequireTPCStandAlone;
target.fCutRequireITSRefit = fCutRequireITSRefit;
target.fCutRequireITSStandAlone = fCutRequireITSStandAlone;
// getting quality parameters from the ESD track
Int_t nClustersITS = esdTrack->GetITSclusters(0);
- Int_t nClustersTPC = esdTrack->GetTPCclusters(0);
+ Int_t nClustersTPC = -1;
+ if(fCutRequireTPCStandAlone) {
+ nClustersTPC = esdTrack->GetTPCNclsIter1();
+ }
+ else {
+ nClustersTPC = esdTrack->GetTPCclusters(0);
+ }
+
+ Int_t nClustersTPCShared = esdTrack->GetTPCnclsS();
+ Float_t fracClustersTPCShared = -1.;
Float_t chi2PerClusterITS = -1;
Float_t chi2PerClusterTPC = -1;
if (nClustersITS!=0)
chi2PerClusterITS = esdTrack->GetITSchi2()/Float_t(nClustersITS);
- if (nClustersTPC!=0)
- chi2PerClusterTPC = esdTrack->GetTPCchi2()/Float_t(nClustersTPC);
+ if (nClustersTPC!=0) {
+ if(fCutRequireTPCStandAlone) {
+ chi2PerClusterTPC = esdTrack->GetTPCchi2Iter1()/Float_t(nClustersTPC);
+ } else {
+ chi2PerClusterTPC = esdTrack->GetTPCchi2()/Float_t(nClustersTPC);
+ }
+ fracClustersTPCShared = Float_t(nClustersTPCShared)/Float_t(nClustersTPC);
+ }
+
Double_t extCov[15];
esdTrack->GetExternalCovariance(extCov);
Float_t pt = TMath::Sqrt(TMath::Power(p[0],2) + TMath::Power(p[1],2));
Float_t energy = TMath::Sqrt(TMath::Power(esdTrack->GetMass(),2) + TMath::Power(momentum,2));
-
//y-eta related calculations
Float_t eta = -100.;
Float_t y = -100.;
if((energy != TMath::Abs(p[2]))&&(momentum != 0))
y = 0.5*TMath::Log((energy + p[2])/(energy - p[2]));
+ if (extCov[14] < 0)
+ {
+ Printf("AliESDtrackCuts::AcceptTrack: WARNING: GetSigma1Pt2() returns negative value for external covariance matrix element fC[14]: %f. Corrupted track information, track will not be accepted!", extCov[14]);
+ return kFALSE;
+ }
Float_t relUncertainty1Pt = TMath::Sqrt(extCov[14])*pt;
//########################################################################
// track quality cuts
if (fCutRequireTPCRefit && (status&AliESDtrack::kTPCrefit)==0)
cuts[0]=kTRUE;
- if (fCutRequireITSRefit && (status&AliESDtrack::kITSrefit)==0)
+ if (fCutRequireTPCStandAlone && (status&AliESDtrack::kTPCin)==0)
cuts[1]=kTRUE;
- if (nClustersTPC<fCutMinNClusterTPC)
+ if (fCutRequireITSRefit && (status&AliESDtrack::kITSrefit)==0)
cuts[2]=kTRUE;
- if (nClustersITS<fCutMinNClusterITS)
+ if (nClustersTPC<fCutMinNClusterTPC)
cuts[3]=kTRUE;
+ if (nClustersITS<fCutMinNClusterITS)
+ cuts[4]=kTRUE;
if (chi2PerClusterTPC>fCutMaxChi2PerClusterTPC)
- cuts[4]=kTRUE;
+ cuts[5]=kTRUE;
if (chi2PerClusterITS>fCutMaxChi2PerClusterITS)
- cuts[5]=kTRUE;
+ cuts[6]=kTRUE;
if (extCov[0] > fCutMaxC11)
- cuts[6]=kTRUE;
- if (extCov[2] > fCutMaxC22)
cuts[7]=kTRUE;
- if (extCov[5] > fCutMaxC33)
+ if (extCov[2] > fCutMaxC22)
cuts[8]=kTRUE;
- if (extCov[9] > fCutMaxC44)
+ if (extCov[5] > fCutMaxC33)
cuts[9]=kTRUE;
- if (extCov[14] > fCutMaxC55)
+ if (extCov[9] > fCutMaxC44)
cuts[10]=kTRUE;
+ if (extCov[14] > fCutMaxC55)
+ cuts[11]=kTRUE;
if (nSigmaToVertex > fCutNsigmaToVertex && fCutSigmaToVertexRequired)
- cuts[11] = kTRUE;
+ cuts[12] = kTRUE;
// if n sigma could not be calculated
if (nSigmaToVertex<0 && fCutSigmaToVertexRequired)
- cuts[12]=kTRUE;
- if (!fCutAcceptKinkDaughters && esdTrack->GetKinkIndex(0)>0)
cuts[13]=kTRUE;
+ if (!fCutAcceptKinkDaughters && esdTrack->GetKinkIndex(0)>0)
+ cuts[14]=kTRUE;
// track kinematics cut
if((momentum < fPMin) || (momentum > fPMax))
- cuts[14]=kTRUE;
+ cuts[15]=kTRUE;
if((pt < fPtMin) || (pt > fPtMax))
- cuts[15] = kTRUE;
- if((p[0] < fPxMin) || (p[0] > fPxMax))
cuts[16] = kTRUE;
- if((p[1] < fPyMin) || (p[1] > fPyMax))
+ if((p[0] < fPxMin) || (p[0] > fPxMax))
cuts[17] = kTRUE;
- if((p[2] < fPzMin) || (p[2] > fPzMax))
+ if((p[1] < fPyMin) || (p[1] > fPyMax))
cuts[18] = kTRUE;
- if((eta < fEtaMin) || (eta > fEtaMax))
+ if((p[2] < fPzMin) || (p[2] > fPzMax))
cuts[19] = kTRUE;
- if((y < fRapMin) || (y > fRapMax))
+ if((eta < fEtaMin) || (eta > fEtaMax))
cuts[20] = kTRUE;
- if (fCutDCAToVertex2D && dcaToVertex > 1)
+ if((y < fRapMin) || (y > fRapMax))
cuts[21] = kTRUE;
- if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexXY) > fCutMaxDCAToVertexXY)
+ if (fCutDCAToVertex2D && dcaToVertex > 1)
cuts[22] = kTRUE;
- if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexZ) > fCutMaxDCAToVertexZ)
+ if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexXY) > fCutMaxDCAToVertexXY)
cuts[23] = kTRUE;
- if (fCutDCAToVertex2D && fCutMinDCAToVertexXY > 0 && fCutMinDCAToVertexZ > 0 && dcaToVertexXY*dcaToVertexXY/fCutMinDCAToVertexXY/fCutMinDCAToVertexXY + dcaToVertexZ*dcaToVertexZ/fCutMinDCAToVertexZ/fCutMinDCAToVertexZ < 1)
+ if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexZ) > fCutMaxDCAToVertexZ)
cuts[24] = kTRUE;
- if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexXY) < fCutMinDCAToVertexXY)
+ if (fCutDCAToVertex2D && fCutMinDCAToVertexXY > 0 && fCutMinDCAToVertexZ > 0 && dcaToVertexXY*dcaToVertexXY/fCutMinDCAToVertexXY/fCutMinDCAToVertexXY + dcaToVertexZ*dcaToVertexZ/fCutMinDCAToVertexZ/fCutMinDCAToVertexZ < 1)
cuts[25] = kTRUE;
- if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexZ) < fCutMinDCAToVertexZ)
+ if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexXY) < fCutMinDCAToVertexXY)
cuts[26] = kTRUE;
+ if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexZ) < fCutMinDCAToVertexZ)
+ cuts[27] = kTRUE;
for (Int_t i = 0; i < 3; i++)
- cuts[27+i] = !CheckITSClusterRequirement(fCutClusterRequirementITS[i], esdTrack->HasPointOnITSLayer(i*2), esdTrack->HasPointOnITSLayer(i*2+1));
+ cuts[28+i] = !CheckITSClusterRequirement(fCutClusterRequirementITS[i], esdTrack->HasPointOnITSLayer(i*2), esdTrack->HasPointOnITSLayer(i*2+1));
if (fCutRequireITSStandAlone && ((status & AliESDtrack::kITSin) == 0 || (status & AliESDtrack::kTPCin)))
- cuts[30]=kTRUE;
+ cuts[31] = kTRUE;
if (relUncertainty1Pt > fCutMaxRel1PtUncertainty)
- cuts[31]=kTRUE;
-
+ cuts[32] = kTRUE;
+
+ if (!fCutAcceptSharedTPCClusters && nClustersTPCShared!=0)
+ cuts[33] = kTRUE;
+
+ if (fracClustersTPCShared > fCutMaxFractionSharedTPCClusters)
+ cuts[34] = kTRUE;
+
Bool_t cut=kFALSE;
for (Int_t i=0; i<kNCuts; i++)
if (cuts[i]) {cut = kTRUE;}
-
//########################################################################
// filling histograms
if (fHistogramsOn) {
//____________________________________________________________________
AliESDtrack* AliESDtrackCuts::GetTPCOnlyTrack(AliESDEvent* esd, Int_t iTrack)
{
- // creates a TPC only track from the given esd track
- // the track has to be deleted by the user
+
+ // Utility function to
+ // create a TPC only track from the given esd track
+ //
+ // IMPORTANT: The track has to be deleted by the user
//
// NB. most of the functionality to get a TPC only track from an ESD track is in AliESDtrack, where it should be
// there are only missing propagations here that are needed for old data
AliESDtrack *tpcTrack = new AliESDtrack();
- // This should have been done during the reconstruction
- // fixed by Juri in r26675
- // but recalculate for older data CKB
- Float_t p[2],cov[3];
- track->GetImpactParametersTPC(p,cov);
- if(p[0]==0&&p[1]==0)
- track->RelateToVertexTPC(esd->GetPrimaryVertexTPC(),esd->GetMagneticField(),kVeryBig);
- // BKC
-
// only true if we have a tpc track
if (!track->FillTPCOnlyTrack(*tpcTrack))
{
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff