#include "AliESDtrackCuts.h"
#include <AliESDtrack.h>
+#include <AliESDVertex.h>
#include <AliESDEvent.h>
#include <AliLog.h>
#include <TTree.h>
#include <TCanvas.h>
#include <TDirectory.h>
+#include <TH2F.h>
+#include <TF1.h>
//____________________________________________________________________
ClassImp(AliESDtrackCuts)
"require ITS refit",
"n clusters TPC",
"n clusters ITS",
- "#Chi^{2}/clusters TPC",
- "#Chi^{2}/clusters ITS",
+ "#Chi^{2}/cluster TPC",
+ "#Chi^{2}/cluster ITS",
"cov 11",
"cov 22",
"cov 33",
"p_{x}",
"p_{y}",
"p_{z}",
- "y",
"eta",
- "trk-to-vtx dca absolute",
- "trk-to-vtx dca xy absolute"
+ "y",
+ "trk-to-vtx max dca 2D absolute",
+ "trk-to-vtx max dca xy absolute",
+ "trk-to-vtx max dca z absolute",
+ "trk-to-vtx min dca 2D absolute",
+ "trk-to-vtx min dca xy absolute",
+ "trk-to-vtx min dca z absolute",
+ "SPD cluster requirement",
+ "SDD cluster requirement",
+ "SSD cluster requirement",
+ "require ITS stand-alone",
+ "rel 1/pt uncertainty"
};
//____________________________________________________________________
fCutMaxC33(0),
fCutMaxC44(0),
fCutMaxC55(0),
+ fCutMaxRel1PtUncertainty(0),
fCutAcceptKinkDaughters(0),
fCutRequireTPCRefit(0),
fCutRequireITSRefit(0),
+ fCutRequireITSStandAlone(0),
fCutNsigmaToVertex(0),
fCutSigmaToVertexRequired(0),
- fCutDCAToVertex(0),
- fCutDCAToVertexXY(0),
+ fCutMaxDCAToVertexXY(0),
+ fCutMaxDCAToVertexZ(0),
+ fCutMinDCAToVertexXY(0),
+ fCutMinDCAToVertexZ(0),
+ fCutDCAToVertex2D(0),
fPMin(0),
fPMax(0),
fPtMin(0),
SetMinNClustersITS();
SetMaxChi2PerClusterTPC();
SetMaxChi2PerClusterITS();
- SetMaxCovDiagonalElements();
+ SetMaxCovDiagonalElements();
+ SetMaxRel1PtUncertainty();
SetRequireTPCRefit();
SetRequireITSRefit();
- SetAcceptKingDaughters();
- SetMinNsigmaToVertex();
- SetRequireSigmaToVertex();
- SetDCAToVertex();
- SetDCAToVertexXY();
+ SetRequireITSStandAlone(kFALSE);
+ SetAcceptKinkDaughters();
+ SetMaxNsigmaToVertex();
+ SetMaxDCAToVertexXY();
+ SetMaxDCAToVertexZ();
+ SetDCAToVertex2D();
+ SetMinDCAToVertexXY();
+ SetMinDCAToVertexZ();
SetPRange();
SetPtRange();
SetPxRange();
SetPzRange();
SetEtaRange();
SetRapRange();
+ SetClusterRequirementITS(kSPD);
+ SetClusterRequirementITS(kSDD);
+ SetClusterRequirementITS(kSSD);
SetHistogramsOn();
}
fCutMaxC33(0),
fCutMaxC44(0),
fCutMaxC55(0),
+ fCutMaxRel1PtUncertainty(0),
fCutAcceptKinkDaughters(0),
fCutRequireTPCRefit(0),
fCutRequireITSRefit(0),
+ fCutRequireITSStandAlone(0),
fCutNsigmaToVertex(0),
fCutSigmaToVertexRequired(0),
- fCutDCAToVertex(0),
- fCutDCAToVertexXY(0),
+ fCutMaxDCAToVertexXY(0),
+ fCutMaxDCAToVertexZ(0),
+ fCutMinDCAToVertexXY(0),
+ fCutMinDCAToVertexZ(0),
+ fCutDCAToVertex2D(0),
fPMin(0),
fPMax(0),
fPtMin(0),
if (fhC44[i])
delete fhC44[i];
if (fhC55[i])
- delete fhC55[i];
+ delete fhC55[i];
+
+ if (fhRel1PtUncertainty[i])
+ delete fhRel1PtUncertainty[i];
if (fhDXY[i])
delete fhDXY[i];
fCutMaxChi2PerClusterTPC = 0;
fCutMaxChi2PerClusterITS = 0;
+
+ for (Int_t i = 0; i < 3; i++)
+ fCutClusterRequirementITS[i] = kOff;
fCutMaxC11 = 0;
fCutMaxC22 = 0;
fCutMaxC33 = 0;
fCutMaxC44 = 0;
fCutMaxC55 = 0;
+
+ fCutMaxRel1PtUncertainty = 0;
fCutAcceptKinkDaughters = 0;
fCutRequireTPCRefit = 0;
fCutRequireITSRefit = 0;
+ fCutRequireITSStandAlone = 0;
fCutNsigmaToVertex = 0;
fCutSigmaToVertexRequired = 0;
- fCutDCAToVertex = 0;
- fCutDCAToVertexXY = 0;
+ fCutMaxDCAToVertexXY = 0;
+ fCutMaxDCAToVertexZ = 0;
+ fCutDCAToVertex2D = 0;
+ fCutMinDCAToVertexXY = 0;
+ fCutMinDCAToVertexZ = 0;
+
fPMin = 0;
fPMax = 0;
fPtMin = 0;
fhC44[i] = 0;
fhC55[i] = 0;
+ fhRel1PtUncertainty[i] = 0;
+
fhDXY[i] = 0;
fhDZ[i] = 0;
fhDXYDZ[i] = 0;
target.fCutMaxChi2PerClusterTPC = fCutMaxChi2PerClusterTPC;
target.fCutMaxChi2PerClusterITS = fCutMaxChi2PerClusterITS;
+ for (Int_t i = 0; i < 3; i++)
+ target.fCutClusterRequirementITS[i] = fCutClusterRequirementITS[i];
+
target.fCutMaxC11 = fCutMaxC11;
target.fCutMaxC22 = fCutMaxC22;
target.fCutMaxC33 = fCutMaxC33;
target.fCutMaxC44 = fCutMaxC44;
target.fCutMaxC55 = fCutMaxC55;
+ target.fCutMaxRel1PtUncertainty = fCutMaxRel1PtUncertainty;
+
target.fCutAcceptKinkDaughters = fCutAcceptKinkDaughters;
target.fCutRequireTPCRefit = fCutRequireTPCRefit;
target.fCutRequireITSRefit = fCutRequireITSRefit;
+ target.fCutRequireITSStandAlone = fCutRequireITSStandAlone;
target.fCutNsigmaToVertex = fCutNsigmaToVertex;
target.fCutSigmaToVertexRequired = fCutSigmaToVertexRequired;
- target.fCutDCAToVertex = fCutDCAToVertex;
- target.fCutDCAToVertexXY = fCutDCAToVertexXY;
+ target.fCutMaxDCAToVertexXY = fCutMaxDCAToVertexXY;
+ target.fCutMaxDCAToVertexZ = fCutMaxDCAToVertexZ;
+ target.fCutDCAToVertex2D = fCutDCAToVertex2D;
+ target.fCutMinDCAToVertexXY = fCutMinDCAToVertexXY;
+ target.fCutMinDCAToVertexZ = fCutMinDCAToVertexZ;
target.fPMin = fPMin;
target.fPMax = fPMax;
if (fhC44[i]) target.fhC44[i] = (TH1F*) fhC44[i]->Clone();
if (fhC55[i]) target.fhC55[i] = (TH1F*) fhC55[i]->Clone();
+ if (fhRel1PtUncertainty[i]) target.fhRel1PtUncertainty[i] = (TH1F*) fhRel1PtUncertainty[i]->Clone();
+
if (fhDXY[i]) target.fhDXY[i] = (TH1F*) fhDXY[i]->Clone();
if (fhDZ[i]) target.fhDZ[i] = (TH1F*) fhDZ[i]->Clone();
if (fhDXYDZ[i]) target.fhDXYDZ[i] = (TH1F*) fhDXYDZ[i]->Clone();
fhC22[i] ->Add(entry->fhC22[i] );
fhC33[i] ->Add(entry->fhC33[i] );
fhC44[i] ->Add(entry->fhC44[i] );
- fhC55[i] ->Add(entry->fhC55[i] );
+ fhC55[i] ->Add(entry->fhC55[i] );
+
+ fhRel1PtUncertainty[i] ->Add(entry->fhRel1PtUncertainty[i]);
fhDXY[i] ->Add(entry->fhDXY[i] );
fhDZ[i] ->Add(entry->fhDZ[i] );
return count+1;
}
+//____________________________________________________________________
+AliESDtrackCuts* AliESDtrackCuts::GetStandardTPCOnlyTrackCuts()
+{
+ // creates an AliESDtrackCuts object and fills it with standard values for TPC-only cuts
+ // see ALICE note: ...
+
+ Printf("AliESDtrackCuts::GetStandardTPCOnlyTrackCuts: Creating track cuts for TPC-only.");
+
+ AliESDtrackCuts* esdTrackCuts = new AliESDtrackCuts;
+
+ esdTrackCuts->SetMinNClustersTPC(50);
+ esdTrackCuts->SetMaxChi2PerClusterTPC(4);
+ esdTrackCuts->SetAcceptKinkDaughters(kFALSE);
+
+ esdTrackCuts->SetMaxDCAToVertexZ(3.2);
+ esdTrackCuts->SetMaxDCAToVertexXY(2.4);
+ esdTrackCuts->SetDCAToVertex2D(kTRUE);
+
+ return esdTrackCuts;
+}
+
+//____________________________________________________________________
+Int_t AliESDtrackCuts::GetReferenceMultiplicity(AliESDEvent* esd, Bool_t tpcOnly)
+{
+ // Gets reference multiplicity following the standard cuts and a defined fiducial volume
+ // tpcOnly = kTRUE -> consider TPC-only tracks
+ // = kFALSE -> consider global tracks
+
+ if (!tpcOnly)
+ {
+ Printf("AliESDtrackCuts::GetReferenceMultiplicity: Not implemented for global tracks!");
+ return -1;
+ }
+
+ AliESDtrackCuts* esdTrackCuts = GetStandardTPCOnlyTrackCuts();
+ esdTrackCuts->SetEtaRange(-0.8, 0.8);
+ esdTrackCuts->SetPtRange(0.15);
+
+ Int_t nTracks = esdTrackCuts->CountAcceptedTracks(esd);
+
+ delete esdTrackCuts;
+ esdTrackCuts = 0;
+
+ return nTracks;
+}
//____________________________________________________________________
Float_t AliESDtrackCuts::GetSigmaToVertex(AliESDtrack* esdTrack)
// -> Erf(d/Sqrt(2)) for a 1-dim gauss (d = n_sigma)
// -> 1 - Exp(-d**2) for a 2-dim gauss (d*d = dx*dx + dy*dy != n_sigma)
//
- // It means that for a 2-dim gauss: n_sigma(d) = Sqrt(2)*ErfInv(1 - Exp((-x**2)/2)
+ // It means that for a 2-dim gauss: n_sigma(d) = Sqrt(2)*ErfInv(1 - Exp((-d**2)/2)
// Can this be expressed in a different way?
if (bRes[0] == 0 || bRes[1] ==0)
Float_t d = TMath::Sqrt(TMath::Power(b[0]/bRes[0],2) + TMath::Power(b[1]/bRes[1],2));
- // stupid rounding problem screws up everything:
+ // work around precision problem
// if d is too big, TMath::Exp(...) gets 0, and TMath::ErfInverse(1) that should be infinite, gets 0 :(
- if (TMath::Exp(-d * d / 2) < 1e-10)
+ // 1e-15 corresponds to nsigma ~ 7.7
+ if (TMath::Exp(-d * d / 2) < 1e-15)
return 1000;
- d = TMath::ErfInverse(1 - TMath::Exp(-d * d / 2)) * TMath::Sqrt(2);
- return d;
+ Float_t nSigma = TMath::ErfInverse(1 - TMath::Exp(-d * d / 2)) * TMath::Sqrt(2);
+ return nSigma;
}
void AliESDtrackCuts::EnableNeededBranches(TTree* tree)
}
//____________________________________________________________________
-Bool_t
-AliESDtrackCuts::AcceptTrack(AliESDtrack* esdTrack) {
+Bool_t AliESDtrackCuts::AcceptTrack(AliESDtrack* esdTrack)
+{
//
// figure out if the tracks survives all the track cuts defined
//
// fTracks.fP //GetMass
// fTracks.fKinkIndexes
-
UInt_t status = esdTrack->GetStatus();
// getting quality parameters from the ESD track
AliDebug(1, "Estimated b resolution lower or equal zero!");
bCov[0]=0; bCov[2]=0;
}
- Float_t dcaToVertex = TMath::Sqrt(b[0]*b[0] + b[1]*b[1]);
-
+
Float_t dcaToVertexXY = b[0];
+ Float_t dcaToVertexZ = b[1];
+
+ Float_t dcaToVertex = -1;
+ if (fCutDCAToVertex2D)
+ {
+ dcaToVertex = TMath::Sqrt(dcaToVertexXY*dcaToVertexXY/fCutMaxDCAToVertexXY/fCutMaxDCAToVertexXY + dcaToVertexZ*dcaToVertexZ/fCutMaxDCAToVertexZ/fCutMaxDCAToVertexZ);
+ }
+ else
+ dcaToVertex = TMath::Sqrt(dcaToVertexXY*dcaToVertexXY + dcaToVertexZ*dcaToVertexZ);
+
// getting the kinematic variables of the track
// (assuming the mass is known)
Double_t p[3];
eta = 0.5*TMath::Log((momentum + p[2])/(momentum - p[2]));
if((energy != TMath::Abs(p[2]))&&(momentum != 0))
y = 0.5*TMath::Log((energy + p[2])/(energy - p[2]));
-
+
+ Float_t relUncertainty1Pt = TMath::Sqrt(extCov[14])*pt;
//########################################################################
// cut the track?
cuts[17] = kTRUE;
if((p[2] < fPzMin) || (p[2] > fPzMax))
cuts[18] = kTRUE;
- if((eta < fEtaMin) || (eta > fEtaMax))
+ if((eta < fEtaMin) || (eta > fEtaMax))
cuts[19] = kTRUE;
if((y < fRapMin) || (y > fRapMax))
cuts[20] = kTRUE;
- if (dcaToVertex > fCutDCAToVertex)
+ if (fCutDCAToVertex2D && dcaToVertex > 1)
cuts[21] = kTRUE;
- if (dcaToVertexXY > fCutDCAToVertexXY)
+ if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexXY) > fCutMaxDCAToVertexXY)
cuts[22] = kTRUE;
-
+ if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexZ) > fCutMaxDCAToVertexZ)
+ cuts[23] = kTRUE;
+ if (fCutDCAToVertex2D && fCutMinDCAToVertexXY > 0 && fCutMinDCAToVertexZ > 0 && dcaToVertexXY*dcaToVertexXY/fCutMinDCAToVertexXY/fCutMinDCAToVertexXY + dcaToVertexZ*dcaToVertexZ/fCutMinDCAToVertexZ/fCutMinDCAToVertexZ < 1)
+ cuts[24] = kTRUE;
+ if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexXY) < fCutMinDCAToVertexXY)
+ cuts[25] = kTRUE;
+ if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexZ) < fCutMinDCAToVertexZ)
+ cuts[26] = kTRUE;
+
+ for (Int_t i = 0; i < 3; i++)
+ cuts[27+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;
+
+ if (relUncertainty1Pt > fCutMaxRel1PtUncertainty)
+ cuts[31]=kTRUE;
+
Bool_t cut=kFALSE;
for (Int_t i=0; i<kNCuts; i++)
- if (cuts[i]) cut = kTRUE;
+ if (cuts[i]) {cut = kTRUE;}
fhC44[id]->Fill(extCov[9]);
fhC55[id]->Fill(extCov[14]);
+ fhRel1PtUncertainty[id]->Fill(relUncertainty1Pt);
+
fhPt[id]->Fill(pt);
fhEta[id]->Fill(eta);
return kTRUE;
}
+//____________________________________________________________________
+Bool_t AliESDtrackCuts::CheckITSClusterRequirement(ITSClusterRequirement req, Bool_t clusterL1, Bool_t clusterL2)
+{
+ // checks if the cluster requirement is fullfilled (in this case: return kTRUE)
+
+ switch (req)
+ {
+ case kOff: return kTRUE;
+ case kNone: return !clusterL1 && !clusterL2;
+ case kAny: return clusterL1 || clusterL2;
+ case kFirst: return clusterL1;
+ case kOnlyFirst: return clusterL1 && !clusterL2;
+ case kSecond: return clusterL2;
+ case kOnlySecond: return clusterL2 && !clusterL1;
+ case kBoth: return clusterL1 && clusterL2;
+ }
+
+ return kFALSE;
+}
+
//____________________________________________________________________
AliESDtrack* AliESDtrackCuts::GetTPCOnlyTrack(AliESDEvent* esd, Int_t iTrack)
{
if (!esd->GetPrimaryVertexTPC())
return 0; // No TPC vertex no TPC tracks
+ if(!esd->GetPrimaryVertexTPC()->GetStatus())
+ return 0; // TPC Vertex is created by default in AliESDEvent, do not use in this case
+
AliESDtrack* track = esd->GetTrack(iTrack);
if (!track)
return 0;
for (Int_t iTrack = 0; iTrack < esd->GetNumberOfTracks(); iTrack++) {
if(bTPC){
if(!esd->GetPrimaryVertexTPC())return acceptedTracks; // No TPC vertex no TPC tracks
+ if(!esd->GetPrimaryVertexTPC()->GetStatus())return acceptedTracks; // No proper TPC vertex, only the default
AliESDtrack *tpcTrack = GetTPCOnlyTrack(esd, iTrack);
if (!tpcTrack)
fhCutStatistics->GetXaxis()->SetBinLabel(i+4,fgkCutNames[i]);
fhCutCorrelation->GetXaxis()->SetBinLabel(i+1,fgkCutNames[i]);
fhCutCorrelation->GetYaxis()->SetBinLabel(i+1,fgkCutNames[i]);
- }
+ }
fhCutStatistics ->SetLineColor(color);
fhCutCorrelation ->SetLineColor(color);
fhC11[i] = new TH1F("covMatrixDiagonal11","",2000,0,20);
fhC22[i] = new TH1F("covMatrixDiagonal22","",2000,0,20);
- fhC33[i] = new TH1F("covMatrixDiagonal33","",1000,0,1);
- fhC44[i] = new TH1F("covMatrixDiagonal44","",1000,0,5);
+ fhC33[i] = new TH1F("covMatrixDiagonal33","",1000,0,0.1);
+ fhC44[i] = new TH1F("covMatrixDiagonal44","",1000,0,0.1);
fhC55[i] = new TH1F("covMatrixDiagonal55","",1000,0,5);
+ fhRel1PtUncertainty[i] = new TH1F("rel1PtUncertainty","",1000,0,5);
+
fhDXY[i] = new TH1F("dXY" ,"",500,-10,10);
fhDZ[i] = new TH1F("dZ" ,"",500,-10,10);
fhDXYDZ[i] = new TH1F("dXYDZ" ,"",500,0,10);
fhNSigmaToVertex[i] = new TH1F("nSigmaToVertex","",500,0,10);
- fhPt[i] = new TH1F("pt" ,"p_{T} distribution;p_{T} (GeV/c)",500,0.0,100.0);
+ fhPt[i] = new TH1F("pt" ,"p_{T} distribution;p_{T} (GeV/c)", 800, 0.0, 10.0);
fhEta[i] = new TH1F("eta" ,"#eta distribution;#eta",40,-2.0,2.0);
fhNClustersITS[i]->SetTitle("n ITS clusters");
fhC44[i]->SetTitle("cov 44 : #sigma_{tan(#theta_{dip})}^{2}");
fhC55[i]->SetTitle("cov 55 : #sigma_{1/p_{T}}^{2} [(c/GeV)^2]");
- fhDXY[i]->SetTitle("transverse impact parameter");
- fhDZ[i]->SetTitle("longitudinal impact parameter");
- fhDXYDZ[i]->SetTitle("absolute impact parameter;sqrt(dXY**2 + dZ**2) in cm");
- fhDXYvsDZ[i]->SetXTitle("longitudinal impact parameter");
- fhDXYvsDZ[i]->SetYTitle("transverse impact parameter");
+ fhRel1PtUncertainty[i]->SetTitle("rel. uncertainty of 1/p_{T}");
+
+ fhDXY[i]->SetXTitle("transverse impact parameter (cm)");
+ fhDZ[i]->SetXTitle("longitudinal impact parameter (cm)");
+ fhDXYDZ[i]->SetTitle("absolute impact parameter;sqrt(dXY**2 + dZ**2) (cm)");
+ fhDXYvsDZ[i]->SetXTitle("longitudinal impact parameter (cm)");
+ fhDXYvsDZ[i]->SetYTitle("transverse impact parameter (cm)");
- fhDXYNormalized[i]->SetTitle("normalized trans impact par");
- fhDZNormalized[i]->SetTitle("normalized long impact par");
- fhDXYvsDZNormalized[i]->SetTitle("normalized long impact par");
- fhDXYvsDZNormalized[i]->SetYTitle("normalized trans impact par");
+ fhDXYNormalized[i]->SetTitle("normalized trans impact par (n#sigma)");
+ fhDZNormalized[i]->SetTitle("normalized long impact par (n#sigma)");
+ fhDXYvsDZNormalized[i]->SetTitle("normalized long impact par (n#sigma)");
+ fhDXYvsDZNormalized[i]->SetYTitle("normalized trans impact par (n#sigma)");
fhNSigmaToVertex[i]->SetTitle("n #sigma to vertex");
fhNClustersITS[i]->SetLineColor(color); fhNClustersITS[i]->SetLineWidth(2);
fhC44[i]->SetLineColor(color); fhC44[i]->SetLineWidth(2);
fhC55[i]->SetLineColor(color); fhC55[i]->SetLineWidth(2);
+ fhRel1PtUncertainty[i]->SetLineColor(color); fhRel1PtUncertainty[i]->SetLineWidth(2);
+
fhDXY[i]->SetLineColor(color); fhDXY[i]->SetLineWidth(2);
fhDZ[i]->SetLineColor(color); fhDZ[i]->SetLineWidth(2);
fhDXYDZ[i]->SetLineColor(color); fhDXYDZ[i]->SetLineWidth(2);
fhC44[i] = dynamic_cast<TH1F*> (gDirectory->Get("covMatrixDiagonal44"));
fhC55[i] = dynamic_cast<TH1F*> (gDirectory->Get("covMatrixDiagonal55"));
+ fhRel1PtUncertainty[i] = dynamic_cast<TH1F*> (gDirectory->Get("rel1PtUncertainty"));
+
fhDXY[i] = dynamic_cast<TH1F*> (gDirectory->Get("dXY" ));
fhDZ[i] = dynamic_cast<TH1F*> (gDirectory->Get("dZ" ));
fhDXYDZ[i] = dynamic_cast<TH1F*> (gDirectory->Get("dXYDZ"));
fhC44[i] ->Write();
fhC55[i] ->Write();
+ fhRel1PtUncertainty[i] ->Write();
+
fhDXY[i] ->Write();
fhDZ[i] ->Write();
fhDXYDZ[i] ->Write();
gPad->SetLogy();
fhC55[0]->Draw();
+ canvas2->cd(6);
+ fhRel1PtUncertainty[0]->SetStats(kFALSE);
+ gPad->SetLogy();
+ fhRel1PtUncertainty[0]->Draw();
+
canvas2->SaveAs(Form("%s_%s.gif", GetName(), canvas2->GetName()));
TCanvas* canvas3 = new TCanvas(Form("%s_3", GetName()), "Track Quality Results3", 1200, 800);
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff