fkSwitchINT7 ( kFALSE ),
fCentralityEstimator("V0M"),
fkpAVertexSelection( kFALSE ),
+ fEtaRefMult ( 0.5 ),
+ fkRunVertexers ( kFALSE ),
+ fkDebugMode (kTRUE),
+ fkSelectPeripheral (kFALSE),
//------------------------------------------------
// Tree Variables
//------------------------------------------------
fTreeCascVarCascRadius(0),
fTreeCascVarV0Mass(0),
fTreeCascVarV0CosPointingAngle(0),
+ fTreeCascVarV0CosPointingAngleSpecial(0),
fTreeCascVarV0Radius(0),
fTreeCascVarLeastNbrClusters(0),
fTreeCascVarMultiplicity(0),
fTreeCascVarPIDBachelor(0),
fTreeCascVarPIDNegative(0),
fTreeCascVarPIDPositive(0),
+ fTreeCascVarBachTransMom(0),
fTreeCascVarPosTransMom(0),
fTreeCascVarNegTransMom(0),
fTreeCascVarPosTransMomMC(0),
fTreeCascVarBachNSigmaPion(0),
fTreeCascVarBachNSigmaKaon(0),
+ fTreeCascVarkITSRefitBachelor(0),
+ fTreeCascVarkITSRefitNegative(0),
+ fTreeCascVarkITSRefitPositive(0),
+
+//Debug information
+//Part A: EbyE info, Run number
+fTreeCascVarRunNumber(0),
+fTreeCascVarEventNumber(0),
+
+//Part B: Shared Clusters
+fTreeCascVarNegClusters(0),
+fTreeCascVarPosClusters(0),
+fTreeCascVarBachClusters(0),
+fTreeCascVarNegSharedClusters(0),
+fTreeCascVarPosSharedClusters(0),
+fTreeCascVarBachSharedClusters(0),
+
+//Part C: All momenta
+fTreeCascVarNegPx(0),
+fTreeCascVarNegPy(0),
+fTreeCascVarNegPz(0),
+fTreeCascVarPosPx(0),
+fTreeCascVarPosPy(0),
+fTreeCascVarPosPz(0),
+fTreeCascVarBachPx(0),
+fTreeCascVarBachPy(0),
+fTreeCascVarBachPz(0),
+
+fTreeCascVarV0DecayX(0),
+fTreeCascVarV0DecayY(0),
+fTreeCascVarV0DecayZ(0),
+
+fTreeCascVarCascadeDecayX(0),
+fTreeCascVarCascadeDecayY(0),
+fTreeCascVarCascadeDecayZ(0),
+
+fTreeCascVarBadCascadeJai(0),
+fTreeCascVarDeltaDCA(0),
+
//------------------------------------------------
// HISTOGRAMS
// --- Filled on an Event-by-event basis
fkSwitchINT7 ( kFALSE ),
fCentralityEstimator("V0M"),
fkpAVertexSelection( kFALSE ),
+ fEtaRefMult ( 0.5 ),
+ fkRunVertexers ( kFALSE ),
+ fkDebugMode (kTRUE),
+ fkSelectPeripheral (kFALSE),
//------------------------------------------------
// Tree Variables
//------------------------------------------------
fTreeCascVarCascRadius(0),
fTreeCascVarV0Mass(0),
fTreeCascVarV0CosPointingAngle(0),
+ fTreeCascVarV0CosPointingAngleSpecial(0),
fTreeCascVarV0Radius(0),
fTreeCascVarLeastNbrClusters(0),
fTreeCascVarMultiplicity(0),
fTreeCascVarPIDBachelor(0),
fTreeCascVarPIDNegative(0),
fTreeCascVarPIDPositive(0),
+ fTreeCascVarBachTransMom(0),
fTreeCascVarPosTransMom(0),
fTreeCascVarNegTransMom(0),
fTreeCascVarPosTransMomMC(0),
fTreeCascVarBachNSigmaPion(0),
fTreeCascVarBachNSigmaKaon(0),
+ fTreeCascVarkITSRefitBachelor(0),
+ fTreeCascVarkITSRefitNegative(0),
+ fTreeCascVarkITSRefitPositive(0),
+
+ //Debug information
+ //Part A: EbyE info, Run number
+ fTreeCascVarRunNumber(0),
+ fTreeCascVarEventNumber(0),
+
+ //Part B: Shared Clusters
+ fTreeCascVarNegClusters(0),
+ fTreeCascVarPosClusters(0),
+ fTreeCascVarBachClusters(0),
+ fTreeCascVarNegSharedClusters(0),
+ fTreeCascVarPosSharedClusters(0),
+ fTreeCascVarBachSharedClusters(0),
+
+ //Part C: All momenta
+ fTreeCascVarNegPx(0),
+ fTreeCascVarNegPy(0),
+ fTreeCascVarNegPz(0),
+ fTreeCascVarPosPx(0),
+ fTreeCascVarPosPy(0),
+ fTreeCascVarPosPz(0),
+ fTreeCascVarBachPx(0),
+ fTreeCascVarBachPy(0),
+ fTreeCascVarBachPz(0),
+
+ fTreeCascVarV0DecayX(0),
+ fTreeCascVarV0DecayY(0),
+ fTreeCascVarV0DecayZ(0),
+
+ fTreeCascVarCascadeDecayX(0),
+ fTreeCascVarCascadeDecayY(0),
+ fTreeCascVarCascadeDecayZ(0),
+
+ fTreeCascVarBadCascadeJai(0),
+ fTreeCascVarDeltaDCA(0),
+
+
//------------------------------------------------
// HISTOGRAMS
// --- Filled on an Event-by-event basis
//Set Variables for re-running the cascade vertexers (as done for MS paper)
// New Loose : 1st step for the 7 TeV pp analysis
- /*
- fV0Sels[0] = 33. ; // max allowed chi2
- fV0Sels[1] = 0.02; // min allowed impact parameter for the 1st daughter (LHC09a4 : 0.05)
- fV0Sels[2] = 0.02; // min allowed impact parameter for the 2nd daughter (LHC09a4 : 0.05)
- fV0Sels[3] = 2.0 ; // max allowed DCA between the daughter tracks (LHC09a4 : 0.5)
- fV0Sels[4] = 0.95; // min allowed cosine of V0's pointing angle (LHC09a4 : 0.99)
- fV0Sels[5] = 1.0 ; // min radius of the fiducial volume (LHC09a4 : 0.2)
- fV0Sels[6] = 100. ; // max radius of the fiducial volume (LHC09a4 : 100.0)
- fCascSels[0] = 33. ; // max allowed chi2 (same as PDC07)
- fCascSels[1] = 0.05 ; // min allowed V0 impact parameter (PDC07 : 0.05 / LHC09a4 : 0.025 )
- fCascSels[2] = 0.010; // "window" around the Lambda mass (PDC07 : 0.008 / LHC09a4 : 0.010 )
- fCascSels[3] = 0.03 ; // min allowed bachelor's impact parameter (PDC07 : 0.035 / LHC09a4 : 0.025 )
- fCascSels[4] = 2.0 ; // max allowed DCA between the V0 and the bachelor (PDC07 : 0.1 / LHC09a4 : 0.2 )
- fCascSels[5] = 0.95 ; // min allowed cosine of the cascade pointing angle (PDC07 : 0.9985 / LHC09a4 : 0.998 )
- fCascSels[6] = 0.4 ; // min radius of the fiducial volume (PDC07 : 0.9 / LHC09a4 : 0.2 )
- fCascSels[7] = 100. ; // max radius of the fiducial volume (PDC07 : 100 / LHC09a4 : 100 )
- */
+ fV0VertexerSels[0] = 33. ; // max allowed chi2
+ fV0VertexerSels[1] = 0.02; // min allowed impact parameter for the 1st daughter (LHC09a4 : 0.05)
+ fV0VertexerSels[2] = 0.02; // min allowed impact parameter for the 2nd daughter (LHC09a4 : 0.05)
+ fV0VertexerSels[3] = 2.0 ; // max allowed DCA between the daughter tracks (LHC09a4 : 0.5)
+ fV0VertexerSels[4] = 0.95; // min allowed cosine of V0's pointing angle (LHC09a4 : 0.99)
+ fV0VertexerSels[5] = 1.0 ; // min radius of the fiducial volume (LHC09a4 : 0.2)
+ fV0VertexerSels[6] = 200. ; // max radius of the fiducial volume (LHC09a4 : 100.0)
+
+ fCascadeVertexerSels[0] = 33. ; // max allowed chi2 (same as PDC07)
+ fCascadeVertexerSels[1] = 0.05 ; // min allowed V0 impact parameter (PDC07 : 0.05 / LHC09a4 : 0.025 )
+ fCascadeVertexerSels[2] = 0.010; // "window" around the Lambda mass (PDC07 : 0.008 / LHC09a4 : 0.010 )
+ fCascadeVertexerSels[3] = 0.03 ; // min allowed bachelor's impact parameter (PDC07 : 0.035 / LHC09a4 : 0.025 )
+ fCascadeVertexerSels[4] = 2.0 ; // max allowed DCA between the V0 and the bachelor (PDC07 : 0.1 / LHC09a4 : 0.2 )
+ fCascadeVertexerSels[5] = 0.95 ; // min allowed cosine of the cascade pointing angle (PDC07 : 0.9985 / LHC09a4 : 0.998 )
+ fCascadeVertexerSels[6] = 0.4 ; // min radius of the fiducial volume (PDC07 : 0.9 / LHC09a4 : 0.2 )
+ fCascadeVertexerSels[7] = 100. ; // max radius of the fiducial volume (PDC07 : 100 / LHC09a4 : 100 )
+
// Output slot #0 writes into a TList container (Cascade)
DefineOutput(1, TList::Class());
DefineOutput(2, TTree::Class());
/*17*/ fTreeCascade->Branch("fTreeCascVarCascRadius",&fTreeCascVarCascRadius,"fTreeCascVarCascRadius/F");
/*18*/ fTreeCascade->Branch("fTreeCascVarV0Mass",&fTreeCascVarV0Mass,"fTreeCascVarV0Mass/F");
/*19*/ fTreeCascade->Branch("fTreeCascVarV0CosPointingAngle",&fTreeCascVarV0CosPointingAngle,"fTreeCascVarV0CosPointingAngle/F");
+/*19*/ fTreeCascade->Branch("fTreeCascVarV0CosPointingAngleSpecial",&fTreeCascVarV0CosPointingAngleSpecial,"fTreeCascVarV0CosPointingAngleSpecial/F");
/*20*/ fTreeCascade->Branch("fTreeCascVarV0Radius",&fTreeCascVarV0Radius,"fTreeCascVarV0Radius/F");
/*21*/ fTreeCascade->Branch("fTreeCascVarLeastNbrClusters",&fTreeCascVarLeastNbrClusters,"fTreeCascVarLeastNbrClusters/I");
//-----------MULTIPLICITY-INFO--------------------
/*27*/ fTreeCascade->Branch("fTreeCascVarPosNSigmaProton",&fTreeCascVarPosNSigmaProton,"fTreeCascVarPosNSigmaProton/F");
/*28*/ fTreeCascade->Branch("fTreeCascVarBachNSigmaPion",&fTreeCascVarBachNSigmaPion,"fTreeCascVarBachNSigmaPion/F");
/*29*/ fTreeCascade->Branch("fTreeCascVarBachNSigmaKaon",&fTreeCascVarBachNSigmaKaon,"fTreeCascVarBachNSigmaKaon/F");
+
+ //Commented out: not needed since all momenta provided! (less info)
+/*30*/ //fTreeCascade->Branch("fTreeCascVarBachTransMom",&fTreeCascVarBachTransMom,"fTreeCascVarBachTransMom/F");
+/*30*/ //fTreeCascade->Branch("fTreeCascVarPosTransMom",&fTreeCascVarPosTransMom,"fTreeCascVarPosTransMom/F");
+/*31*/ //fTreeCascade->Branch("fTreeCascVarNegTransMom",&fTreeCascVarNegTransMom,"fTreeCascVarNegTransMom/F");
+
+/*29*/ fTreeCascade->Branch("fTreeCascVarkITSRefitBachelor",&fTreeCascVarkITSRefitBachelor,"fTreeCascVarkITSRefitBachelor/O");
+/*29*/ fTreeCascade->Branch("fTreeCascVarkITSRefitNegative",&fTreeCascVarkITSRefitNegative,"fTreeCascVarkITSRefitNegative/O");
+/*29*/ fTreeCascade->Branch("fTreeCascVarkITSRefitPositive",&fTreeCascVarkITSRefitPositive,"fTreeCascVarkITSRefitPositive/O");
+
+ //-----------Debugging information----------------
+ if(fkDebugMode){
+ //Only save this if requested - can be turned off
+
+ //Part A: Event-by-event, run-by-run debugging
+ fTreeCascade->Branch("fTreeCascVarRunNumber",&fTreeCascVarRunNumber,"fTreeCascVarRunNumber/I");
+ fTreeCascade->Branch("fTreeCascVarEventNumber",&fTreeCascVarEventNumber,"fTreeCascVarEventNumber/l");
+
+ //Part B: Shared Clusters for all daughter tracks
+ fTreeCascade->Branch("fTreeCascVarNegClusters",&fTreeCascVarNegClusters,"fTreeCascVarNegClusters/I");
+ fTreeCascade->Branch("fTreeCascVarPosClusters",&fTreeCascVarPosClusters,"fTreeCascVarPosClusters/I");
+ fTreeCascade->Branch("fTreeCascVarBachClusters",&fTreeCascVarBachClusters,"fTreeCascVarBachClusters/I");
+ fTreeCascade->Branch("fTreeCascVarNegSharedClusters",&fTreeCascVarNegSharedClusters,"fTreeCascVarNegSharedClusters/I");
+ fTreeCascade->Branch("fTreeCascVarPosSharedClusters",&fTreeCascVarPosSharedClusters,"fTreeCascVarPosSharedClusters/I");
+ fTreeCascade->Branch("fTreeCascVarBachSharedClusters",&fTreeCascVarBachSharedClusters,"fTreeCascVarBachSharedClusters/I");
+
+ //Part C: All Momenta of all daughters
+ fTreeCascade->Branch("fTreeCascVarNegPx",&fTreeCascVarNegPx,"fTreeCascVarNegPx/F");
+ fTreeCascade->Branch("fTreeCascVarNegPy",&fTreeCascVarNegPy,"fTreeCascVarNegPy/F");
+ fTreeCascade->Branch("fTreeCascVarNegPz",&fTreeCascVarNegPz,"fTreeCascVarNegPz/F");
+ fTreeCascade->Branch("fTreeCascVarPosPx",&fTreeCascVarPosPx,"fTreeCascVarPosPx/F");
+ fTreeCascade->Branch("fTreeCascVarPosPy",&fTreeCascVarPosPy,"fTreeCascVarPosPy/F");
+ fTreeCascade->Branch("fTreeCascVarPosPz",&fTreeCascVarPosPz,"fTreeCascVarPosPz/F");
+ fTreeCascade->Branch("fTreeCascVarBachPx",&fTreeCascVarBachPx,"fTreeCascVarBachPx/F");
+ fTreeCascade->Branch("fTreeCascVarBachPy",&fTreeCascVarBachPy,"fTreeCascVarBachPy/F");
+ fTreeCascade->Branch("fTreeCascVarBachPz",&fTreeCascVarBachPz,"fTreeCascVarBachPz/F");
+
+ //Part D: Decay positions
+ fTreeCascade->Branch("fTreeCascVarV0DecayX",&fTreeCascVarV0DecayX,"fTreeCascVarV0DecayX/F");
+ fTreeCascade->Branch("fTreeCascVarV0DecayY",&fTreeCascVarV0DecayY,"fTreeCascVarV0DecayY/F");
+ fTreeCascade->Branch("fTreeCascVarV0DecayZ",&fTreeCascVarV0DecayZ,"fTreeCascVarV0DecayZ/F");
+ fTreeCascade->Branch("fTreeCascVarCascadeDecayX",&fTreeCascVarCascadeDecayX,"fTreeCascVarCascadeDecayX/F");
+ fTreeCascade->Branch("fTreeCascVarCascadeDecayY",&fTreeCascVarCascadeDecayY,"fTreeCascVarCascadeDecayY/F");
+ fTreeCascade->Branch("fTreeCascVarCascadeDecayZ",&fTreeCascVarCascadeDecayZ,"fTreeCascVarCascadeDecayZ/F");
+
+ fTreeCascade->Branch("fTreeCascVarBadCascadeJai",&fTreeCascVarBadCascadeJai,"fTreeCascVarBadCascadeJai/O");
+ fTreeCascade->Branch("fTreeCascVarDeltaDCA",&fTreeCascVarDeltaDCA,"fTreeCascVarDeltaDCA/F");
+ //------------------------------------------------
+ }
+
//------------------------------------------------
// Particle Identification Setup
//------------------------------------------------
return;
}
-/* --- Acquisition of exact event ID
- fTreeVariableRunNumber = lESDevent->GetRunNumber();
- fTreeVariableEventNumber =
+ //--- Acquisition of exact event ID
+ fTreeCascVarRunNumber = lESDevent->GetRunNumber();
+ fTreeCascVarEventNumber =
( ( ((ULong64_t)lESDevent->GetPeriodNumber() ) << 36 ) |
( ((ULong64_t)lESDevent->GetOrbitNumber () ) << 12 ) |
((ULong64_t)lESDevent->GetBunchCrossNumber() ) );
-*/
+
//------------------------------------------------
// Multiplicity Information Acquistion
Int_t lMultiplicitySPD = -100;
//testing purposes
- if(fkIsNuclear == kFALSE) lMultiplicity = fESDtrackCuts->GetReferenceMultiplicity(lESDevent, AliESDtrackCuts::kTrackletsITSTPC,0.5);
+ if(fkIsNuclear == kFALSE) lMultiplicity = fESDtrackCuts->GetReferenceMultiplicity(lESDevent, AliESDtrackCuts::kTrackletsITSTPC, fEtaRefMult );
//---> If this is a nuclear collision, then go nuclear on "multiplicity" variable...
//---> Warning: Experimental
return;
}
}
+
+ if( fkSelectPeripheral ){
+ if( lMultiplicity < 60 || lMultiplicity >= 80. ){
+ //Event is outside 60-80% centrality in V0M!
+ PostData(1, fListHist);
+ PostData(2, fTreeCascade);
+ return;
+ }
+ }
//Set variable for filling tree afterwards!
//---> pp case......: GetReferenceMultiplicity
//------------------------------------------------
// Rerun cascade vertexer!
//------------------------------------------------
-/*
- lESDevent->ResetCascades();
- lESDevent->ResetV0s();
-
- AliV0vertexer lV0vtxer;
- AliCascadeVertexer lCascVtxer;
-
- lV0vtxer.SetDefaultCuts(fV0Sels);
- lCascVtxer.SetDefaultCuts(fCascSels);
-
- lV0vtxer.Tracks2V0vertices(lESDevent);
- lCascVtxer.V0sTracks2CascadeVertices(lESDevent);
-*/
+
+ if( fkRunVertexers ){
+ lESDevent->ResetCascades();
+ lESDevent->ResetV0s();
+
+ AliV0vertexer lV0vtxer;
+ AliCascadeVertexer lCascVtxer;
+
+ lV0vtxer.SetDefaultCuts(fV0VertexerSels);
+ lCascVtxer.SetDefaultCuts(fCascadeVertexerSels);
+
+ lV0vtxer.Tracks2V0vertices(lESDevent);
+ lCascVtxer.V0sTracks2CascadeVertices(lESDevent);
+ }
//------------------------------------------------
// After Trigger Selection
//------------------------------------------------
//------------------------------------------------
//Double_t lTrkgPrimaryVtxRadius3D = -500.0;
//Double_t lBestPrimaryVtxRadius3D = -500.0;
+ fTreeCascVarBadCascadeJai = kFALSE ;
// - 1st part of initialisation : variables needed to store AliESDCascade data members
Double_t lEffMassXi = 0. ;
Double_t lDcaPosToPrimVertexXi = -1.;
Double_t lDcaNegToPrimVertexXi = -1.;
Double_t lV0CosineOfPointingAngleXi = -1. ;
+ Double_t lV0CosineOfPointingAngleXiSpecial = -1. ;
Double_t lPosV0Xi[3] = { -1000. , -1000., -1000. }; // Position of VO coming from cascade
Double_t lV0RadiusXi = -1000.0;
Double_t lV0quality = 0.;
xi->GetXYZcascade( lPosXi[0], lPosXi[1], lPosXi[2] );
lXiRadius = TMath::Sqrt( lPosXi[0]*lPosXi[0] + lPosXi[1]*lPosXi[1] );
+ fTreeCascVarCascadeDecayX = lPosXi[0];
+ fTreeCascVarCascadeDecayY = lPosXi[1];
+ fTreeCascVarCascadeDecayZ = lPosXi[2];
+
// - II.Step 3 : around the tracks : Bach + V0 (ESD)
// ~ Necessary variables for ESDcascade data members coming from the ESDv0 part (inheritance)
//-------------
continue;
}
- fTreeCascVarPosEta = pTrackXi->Eta();
- fTreeCascVarNegEta = nTrackXi->Eta();
- fTreeCascVarBachEta = bachTrackXi->Eta();
+ fTreeCascVarPosEta = pTrackXi->Eta();
+ fTreeCascVarNegEta = nTrackXi->Eta();
+ fTreeCascVarBachEta = bachTrackXi->Eta();
+
+ //Save shared clusters information
+ fTreeCascVarNegSharedClusters = nTrackXi->GetTPCnclsS(0,159);
+ fTreeCascVarPosSharedClusters = pTrackXi->GetTPCnclsS(0,159);
+ fTreeCascVarBachSharedClusters = bachTrackXi->GetTPCnclsS(0,159);
+
+ Double_t lBMom[3], lNMom[3], lPMom[3];
+ xi->GetBPxPyPz( lBMom[0], lBMom[1], lBMom[2] );
+ xi->GetPPxPyPz( lPMom[0], lPMom[1], lPMom[2] );
+ xi->GetNPxPyPz( lNMom[0], lNMom[1], lNMom[2] );
+
+ //Save all momentum information
+ fTreeCascVarNegPx = lNMom[0];
+ fTreeCascVarNegPy = lNMom[1];
+ fTreeCascVarNegPz = lNMom[2];
+ fTreeCascVarPosPx = lPMom[0];
+ fTreeCascVarPosPy = lPMom[1];
+ fTreeCascVarPosPz = lPMom[2];
+ fTreeCascVarBachPx = lBMom[0];
+ fTreeCascVarBachPy = lBMom[1];
+ fTreeCascVarBachPz = lBMom[2];
+
+ fTreeCascVarBachTransMom = TMath::Sqrt( lBMom[0]*lBMom[0] + lBMom[1]*lBMom[1] );
+ fTreeCascVarPosTransMom = TMath::Sqrt( lPMom[0]*lPMom[0] + lPMom[1]*lPMom[1] );
+ fTreeCascVarNegTransMom = TMath::Sqrt( lNMom[0]*lNMom[0] + lNMom[1]*lNMom[1] );
//------------------------------------------------
// TPC dEdx information
lPosTPCClusters = pTrackXi->GetTPCNcls();
lNegTPCClusters = nTrackXi->GetTPCNcls();
lBachTPCClusters = bachTrackXi->GetTPCNcls();
+
+ fTreeCascVarNegClusters = lNegTPCClusters;
+ fTreeCascVarPosClusters = lPosTPCClusters;
+ fTreeCascVarBachClusters = lBachTPCClusters;
// 1 - Poor quality related to TPCrefit
ULong_t pStatus = pTrackXi->GetStatus();
ULong_t nStatus = nTrackXi->GetStatus();
ULong_t bachStatus = bachTrackXi->GetStatus();
+
+ fTreeCascVarkITSRefitBachelor = kTRUE;
+ fTreeCascVarkITSRefitNegative = kTRUE;
+ fTreeCascVarkITSRefitPositive = kTRUE;
+
if ((pStatus&AliESDtrack::kTPCrefit) == 0) { AliWarning("Pb / V0 Pos. track has no TPCrefit ... continue!"); continue; }
if ((nStatus&AliESDtrack::kTPCrefit) == 0) { AliWarning("Pb / V0 Neg. track has no TPCrefit ... continue!"); continue; }
if ((bachStatus&AliESDtrack::kTPCrefit) == 0) { AliWarning("Pb / Bach. track has no TPCrefit ... continue!"); continue; }
+
+ //Extra Debug Information: booleans for ITS refit
+ if ((pStatus&AliESDtrack::kITSrefit) == 0) { fTreeCascVarkITSRefitPositive = kFALSE; }
+ if ((nStatus&AliESDtrack::kITSrefit) == 0) { fTreeCascVarkITSRefitNegative = kFALSE; }
+ if ((bachStatus&AliESDtrack::kITSrefit) == 0) { fTreeCascVarkITSRefitBachelor = kFALSE; }
+
// 2 - Poor quality related to TPC clusters: lowest cut of 70 clusters
if(lPosTPCClusters < 70) { AliWarning("Pb / V0 Pos. track has less than 70 TPC clusters ... continue!"); continue; }
if(lNegTPCClusters < 70) { AliWarning("Pb / V0 Neg. track has less than 70 TPC clusters ... continue!"); continue; }
lV0CosineOfPointingAngleXi = xi->GetV0CosineOfPointingAngle( lBestPrimaryVtxPos[0],
lBestPrimaryVtxPos[1],
lBestPrimaryVtxPos[2] );
+ //Modification: V0 CosPA wrt to Cascade decay vertex
+ lV0CosineOfPointingAngleXiSpecial = xi->GetV0CosineOfPointingAngle( lPosXi[0],
+ lPosXi[1],
+ lPosXi[2] );
lDcaV0ToPrimVertexXi = xi->GetD( lBestPrimaryVtxPos[0],
lBestPrimaryVtxPos[1],
xi->GetXYZ( lPosV0Xi[0], lPosV0Xi[1], lPosV0Xi[2] );
lV0RadiusXi = TMath::Sqrt( lPosV0Xi[0]*lPosV0Xi[0] + lPosV0Xi[1]*lPosV0Xi[1] );
+ fTreeCascVarV0DecayX = lPosV0Xi[0];
+ fTreeCascVarV0DecayY = lPosV0Xi[1];
+ fTreeCascVarV0DecayZ = lPosV0Xi[2];
+
lDcaPosToPrimVertexXi = TMath::Abs( pTrackXi ->GetD( lBestPrimaryVtxPos[0],
lBestPrimaryVtxPos[1],
lMagneticField ) );
//lPhi = xi->Phi() *180.0/TMath::Pi();
//lAlphaXi = xi->AlphaXi();
//lPtArmXi = xi->PtArmXi();
+
+ //------------------------------------------------
+ // Jai Salzwedel's femto-cut: better V0 exists
+ //------------------------------------------------
+
+ fTreeCascVarDeltaDCA = -100;
+ Float_t DCAV0DaughtersDiff = -100;
+ for (Int_t iv0=0; iv0<lESDevent->GetNumberOfV0s(); iv0++) {
+ AliESDv0 *v0 = lESDevent->GetV0(iv0);
+ UInt_t posV0TrackIdx = (UInt_t) v0->GetPindex();
+ UInt_t negV0TrackIdx = (UInt_t) v0->GetNindex();
+ if ((posV0TrackIdx == lIdxPosXi) && (negV0TrackIdx == lIdxNegXi)) continue;
+ // if both tracks are the same ones as the cascades V0 daughter tracks, then the V0 belongs to the cascade being analysed; so avoid it
+ if ((posV0TrackIdx == lIdxPosXi) || (negV0TrackIdx == lIdxNegXi)) {
+ DCAV0DaughtersDiff = lDcaV0DaughtersXi - v0->GetDcaV0Daughters();
+ if( fTreeCascVarDeltaDCA < DCAV0DaughtersDiff ) fTreeCascVarDeltaDCA = DCAV0DaughtersDiff;
+ if ( lDcaV0DaughtersXi > v0->GetDcaV0Daughters() ) { // DCA comparison criterion
+ fTreeCascVarBadCascadeJai = kTRUE;
+ } //end DCA comparison
+ } // end shares a daughter check
+ } //end V0 loop
//------------------------------------------------
// Set Variables for adding to tree
/*14*/ fTreeCascVarCascRadius = lXiRadius;
/*15*/ fTreeCascVarV0Mass = lInvMassLambdaAsCascDghter;
/*16*/ fTreeCascVarV0CosPointingAngle = lV0CosineOfPointingAngleXi;
+/*16*/ fTreeCascVarV0CosPointingAngleSpecial = lV0CosineOfPointingAngleXiSpecial;
/*17*/ fTreeCascVarV0Radius = lV0RadiusXi;
/*20*/ fTreeCascVarLeastNbrClusters = leastnumberofclusters;
/*21*/ fTreeCascVarMultiplicity = lMultiplicity; //multiplicity, whatever that may be
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff