//-----------------------------------------------------------------
// AliAnalysisTaskCheckCascade class
// (AliAnalysisTaskCheckCascade)
-// This task is for QAing the Cascades from ESD and AOD
-// Origin: AliAnalysisTaskESDCheckV0 by B.H. Nov2007, hippolyt@in2p3.fr
+// This task has four roles :
+// 1. QAing the Cascades from ESD and AOD
+// Origin: AliAnalysisTaskESDCheckV0 by B.H. Nov2007, hippolyt@in2p3.fr
+// 2. Prepare the plots which stand as raw material for yield extraction (wi/wo PID)
+// 3. Supply an AliCFContainer meant to define the optimised topological selections
+// 4. Rough azimuthal correlation study (Eta, Phi)
// Adapted to Cascade : A.Maire Mar2008, antonin.maire@ires.in2p3.fr
-// Modified : A.Maire Jun2009, antonin.maire@ires.in2p3.fr
+// Modified : A.Maire Mar2010, antonin.maire@ires.in2p3.fr
//-----------------------------------------------------------------
class TList;
class TH1F;
class TH2F;
+class TH3F;
+class TVector3;
+class THnSparse;
+class AliESDpid;
+class AliESDEvent;
+class AliPhysicsSelection;
+class AliCFContainer;
+
#include "TString.h"
public:
AliAnalysisTaskCheckCascade();
AliAnalysisTaskCheckCascade(const char *name);
- virtual ~AliAnalysisTaskCheckCascade() {}
+ virtual ~AliAnalysisTaskCheckCascade();
virtual void UserCreateOutputObjects();
virtual void UserExec(Option_t *option);
+ void DoAngularCorrelation(const Char_t *lCascType,
+ Double_t lInvMassCascade,
+ const Int_t *lArrTrackID,
+ TVector3 &lTVect3MomXi,
+ Double_t lEtaXi);
+ virtual Int_t DoESDTrackWithTPCrefitMultiplicity(const AliESDEvent *lESDevent);
+
virtual void Terminate(Option_t *);
- void SetCollidingSystems(Short_t collidingSystems = 0) {fCollidingSystems = collidingSystems;}
- void SetAnalysisType (const char* analysisType = "ESD") {fAnalysisType = analysisType;}
-
- private:
- TString fAnalysisType; // "ESD" or "AOD" analysis type
- Short_t fCollidingSystems; // 0 = pp collisions or 1 = AA collisions
-
-
- TList *fListHistCascade; //! List of Cascade histograms
-
- // - General histos (filled for any event)
- TH1F *fHistTrackMultiplicity; //! Track multiplicity distribution
- TH1F *fHistCascadeMultiplicity; //! Cascade multiplicity distribution
-
+ void SetCollidingSystems (Short_t collidingSystems = 0 ) { fCollidingSystems = collidingSystems;}
+ void SetAnalysisType (const char* analysisType = "ESD") { fAnalysisType = analysisType;}
+ void SetRelaunchV0CascVertexers (Bool_t rerunV0CascVertexers = 0 ) { fkRerunV0CascVertexers = rerunV0CascVertexers; }
+ void SetQualityCutZprimVtxPos (Bool_t qualityCutZprimVtxPos = kTRUE) { fkQualityCutZprimVtxPos = qualityCutZprimVtxPos; }
+ void SetQualityCutNoTPConlyPrimVtx (Bool_t qualityCutNoTPConlyPrimVtx = kTRUE) { fkQualityCutNoTPConlyPrimVtx = qualityCutNoTPConlyPrimVtx;}
+ void SetQualityCutTPCrefit (Bool_t qualityCutTPCrefit = kTRUE) { fkQualityCutTPCrefit = qualityCutTPCrefit; }
+ void SetQualityCut80TPCcls (Bool_t qualityCut80TPCcls = kTRUE) { fkQualityCut80TPCcls = qualityCut80TPCcls; }
+ void SetExtraSelections (Bool_t extraSelections = 0 ) { fkExtraSelections = extraSelections; }
- // - Vertex Positions
- TH1F *fHistVtxStatus; //! Is there a tracking vertex in the event ?
- // Vtx coming from the full tracking
- TH1F *fHistPosTrkgPrimaryVtxX; //! primary vertex position distribution in x
- TH1F *fHistPosTrkgPrimaryVtxY; //! primary vertex position distribution in y
- TH1F *fHistPosTrkgPrimaryVtxZ; //! primary vertex position distribution in z
- TH1F *fHistTrkgPrimaryVtxRadius; //! primary vertex (3D) radius distribution
-
- // Best primary Vtx available for the event
- TH1F *fHistPosBestPrimaryVtxX; //! (best) primary vertex position distribution in x
- TH1F *fHistPosBestPrimaryVtxY; //! (best) primary vertex position distribution in y
- TH1F *fHistPosBestPrimaryVtxZ; //! (best) primary vertex position distribution in z
- TH1F *fHistBestPrimaryVtxRadius; //! (best) primary vertex radius distribution
-
- // Correlation Best Vtx / Full Tracking Vtx
- TH2F *f2dHistTrkgPrimVtxVsBestPrimVtx; //! Radius of prim. Vtx from tracks Vs Radius of best Prim. Vtx
-
-
-
- // - Typical histos on the variables used for the selection of cascades
- TH1F *fHistEffMassXi; //! reconstructed cascade effective mass
- TH1F *fHistChi2Xi; //! chi2 value
- TH1F *fHistDcaXiDaughters; //! dca between Xi's daughters
- TH1F *fHistDcaBachToPrimVertex; //! dca of the bachelor track to primary vertex
- TH1F *fHistXiCosineOfPointingAngle; //! cosine of Xi pointing angle in a cascade
- TH1F *fHistXiRadius; //! (transverse) radius of the cascade vertex
+ private:
+ // Note : In ROOT, "//!" means "do not stream the data from Master node to Worker node" ...
+ // your data member object is created on the worker nodes and streaming is not needed.
+ // http://root.cern.ch/download/doc/11InputOutput.pdf, page 14
+
+
+ TString fAnalysisType; // "ESD" or "AOD" analysis type
+ Short_t fCollidingSystems; // 0 = pp collisions or 1 = AA collisions
+
+ AliESDpid *fESDpid; // Tool data member to manage the TPC Bethe-Bloch info
+ //TPaveText *fPaveTextBookKeeping; // TString to store all the relevant info necessary for book keeping (v0 cuts, cascade cuts, quality cuts, ...)
+
+ Bool_t fkRerunV0CascVertexers; // Boolean : kTRUE = relaunch both V0 + Cascade vertexers
+ Bool_t fkQualityCutZprimVtxPos; // Boolean : kTRUE = cut on the prim.vtx z-position
+ Bool_t fkQualityCutNoTPConlyPrimVtx; // Boolean : kTRUE = prim vtx should be SPD or Tracking vertex
+ Bool_t fkQualityCutTPCrefit; // Boolean : kTRUE = ask for TPCrefit for the 3 daughter tracks
+ Bool_t fkQualityCut80TPCcls; // Boolean : kTRUE = ask for 80 TPC clusters for each daughter track
+ Bool_t fkExtraSelections; // Boolean : kTRUE = apply tighter selections, before starting the analysis
+
+ Double_t fAlephParameters[5]; // Array to store the 5 param values for the TPC Bethe-Bloch parametrisation
+ Double_t fV0Sels[7]; // Array to store the 7 values for the different selections V0 related (if fkRerunV0CascVertexers)
+ Double_t fCascSels[8]; // Array to store the 8 values for the different selections Casc. related (if fkRerunV0CascVertexers)
+
+
+ TList *fListHistCascade; //! List of Cascade histograms
+
+ // - General histos (filled before the trigger selection)
+ TH1F *fHistCascadeMultiplicityBeforeTrigSel; //! Cascade multiplicity distribution
+
+ // - General histos (filled for any triggered event)
+ TH1F *fHistCascadeMultiplicityForTrigEvt; //! Cascade multiplicity distribution
+ TH1F *fHistTrackMultiplicityForTrigEvt; //! Track multiplicity distribution (without any cut = include ITS stand-alone + global tracks)
+ TH1F *fHistTPCrefitTrackMultiplicityForTrigEvt; //! Track multiplicity distribution for tracks with TPCrefit
+
+
+ // - General histos (filled for events selected in this analysis (|z(prim. vtx)| < 10 cm + prim vtx = SPD or Tracking) )
+ TH1F *fHistCascadeMultiplicityForSelEvt; //! Cascade multiplicity distribution
+ TH1F *fHistPosBestPrimaryVtxXForSelEvt; //! (best) primary vertex position distribution in x
+ TH1F *fHistPosBestPrimaryVtxYForSelEvt; //! (best) primary vertex position distribution in y
+ TH1F *fHistPosBestPrimaryVtxZForSelEvt; //! (best) primary vertex position distribution in z
+
+
+
+
+ // - Characteristics for event with >1 cascade : Track Multiplicity, TPC clusters + Prim. vertex positions
+ TH1F *fHistTPCrefitTrackMultiplicityForCascadeEvt; //! TPCrefit Track multiplicity distribution for event with >1 cascade candidate (NB: after quality sel. within the task)
+
+ TH1F *fHistPosV0TPCClusters; //! TPC clusters distribution for Positive V0 daughter track
+ TH1F *fHistNegV0TPCClusters; //! TPC clusters distribution for Negative V0 daughter track
+ TH1F *fHistBachTPCClusters; //! TPC clusters distribution for Bachelor track
+
+ TH1F *fHistVtxStatus; //! Is there a tracking vertex in the cascade event ?
+
+ // Vtx coming from the full tracking, for events containing at least a cascade
+ TH1F *fHistPosTrkgPrimaryVtxXForCascadeEvt; //! primary vertex position distribution in x
+ TH1F *fHistPosTrkgPrimaryVtxYForCascadeEvt; //! primary vertex position distribution in y
+ TH1F *fHistPosTrkgPrimaryVtxZForCascadeEvt; //! primary vertex position distribution in z
+ TH1F *fHistTrkgPrimaryVtxRadius; //! primary vertex (3D) radius distribution
+
+ // Best primary Vtx available, for events containing at least a cascade
+ TH1F *fHistPosBestPrimaryVtxXForCascadeEvt; //! (best) primary vertex position distribution in x
+ TH1F *fHistPosBestPrimaryVtxYForCascadeEvt; //! (best) primary vertex position distribution in y
+ TH1F *fHistPosBestPrimaryVtxZForCascadeEvt; //! (best) primary vertex position distribution in z
+ TH1F *fHistBestPrimaryVtxRadius; //! (best) primary vertex radius distribution
+
+ // Correlation Best Vtx / Full Tracking Vtx
+ TH2F *f2dHistTrkgPrimVtxVsBestPrimVtx; //! Radius of prim. Vtx from tracks Vs Radius of best Prim. Vtx
+
+
+// PART 1 : Adavanced QA
+// - Typical histos on the variables used for the selection of cascades
+ TH1F *fHistEffMassXi; //! reconstructed cascade effective mass
+ TH1F *fHistChi2Xi; //! chi2 value
+ TH1F *fHistDcaXiDaughters; //! dca between Xi's daughters
+ TH1F *fHistDcaBachToPrimVertex; //! dca of the bachelor track to primary vertex
+ TH1F *fHistXiCosineOfPointingAngle; //! cosine of Xi pointing angle in a cascade
+ TH1F *fHistXiRadius; //! (transverse) radius of the cascade vertex
// - Histos about ~ the "V0 selection part" of the cascade, coming by inheritance from AliESDv0
TH1F *fHistMassLambdaAsCascDghter; //! Test Invariant Mass of Lambda coming from Cascade
TH1F *fHistMassXiPlus; //! reconstructed cascade effective mass, under Xi+ hyp.
TH1F *fHistMassOmegaMinus; //! reconstructed cascade effective mass, under Omega- hyp.
TH1F *fHistMassOmegaPlus; //! reconstructed cascade effective mass, under Omega+ hyp.
+
+ TH1F *fHistMassWithCombPIDXiMinus; //! reconstructed Xi- effective mass, with bach. comb PID
+ TH1F *fHistMassWithCombPIDXiPlus; //! reconstructed Xi+ effective mass, with bach. comb PID
+ TH1F *fHistMassWithCombPIDOmegaMinus; //! reconstructed Omega- effective mass, with bach. comb PID
+ TH1F *fHistMassWithCombPIDOmegaPlus; //! reconstructed Omega+ effective mass, with bach. comb PID
// - Complements for QA
- TH1F *fHistXiTransvMom; //! Xi transverse momentum
- TH1F *fHistXiTotMom; //! Xi momentum norm
+ TH1F *fHistXiTransvMom; //! Xi transverse momentum, around the mass peak of Xi-/+
+ TH1F *fHistXiTotMom; //! Xi momentum norm, around the mass peak of Xi-/+
- TH1F *fHistBachTransvMom; //! bachelor transverse momentum
- TH1F *fHistBachTotMom; //! bachelor momentum norm
-
+ TH1F *fHistBachTransvMomXi; //! bachelor transverse momentum, for cand. around the mass peak of Xi-/+
+ TH1F *fHistBachTotMomXi; //! bachelor momentum norm, for cand. around the mass peak of Xi-/+
+
TH1F *fHistChargeXi; //! Charge sign of the cascade candidate
TH1F *fHistV0toXiCosineOfPointingAngle; //! Cos. of Pointing angle between the V0 mom and the Xi-V0 vtx line
- TH1F *fHistRapXi; //! rapidity of Xi candidates
- TH1F *fHistRapOmega; //! rapidity of Omega candidates
- TH1F *fHistEta; //! eta distrib. of all the cascade candidates
- TH1F *fHistTheta; //! theta distrib. of all the cascade candidates
- TH1F *fHistPhi; //! phi distrib. of all the cascade candidates
+ TH1F *fHistRapXi; //! rapidity of Xi candidates, around the mass peak of Xi-/+
+ TH1F *fHistRapOmega; //! rapidity of Omega candidates, around the mass peak of Omega-/+
+ TH1F *fHistEtaXi; //! eta distrib. of all the cascade candidates, around the mass peak of Xi-/+
+ TH1F *fHistThetaXi; //! theta distrib. of all the cascade candidates, around the mass peak of Xi-/+
+ TH1F *fHistPhiXi; //! phi distrib. of all the cascade candidates, around the mass peak of Xi-/+
TH2F *f2dHistArmenteros; //! alpha(casc. cand.) Vs PtArm(casc. cand.)
TH2F *f2dHistXiRadiusVsEffMassOmegaMinus; //! transv. casc. decay radius Vs Omega- Eff mass, under Omega- hyp.
TH2F *f2dHistXiRadiusVsEffMassOmegaPlus; //! transv. casc. decay radius Vs Omega+ Eff mass, under Omega+ hyp.
- TH2F *f2dHistXiPtVsEffMassXiMinus; //! casc. transv. momemtum Vs Xi- Eff mass
- TH2F *f2dHistXiPtVsEffMassXiPlus; //! casc. transv. momemtum Vs Xi+ Eff mass
- TH2F *f2dHistXiPtVsEffMassOmegaMinus; //! casc. transv. momemtum Vs Omega- Eff mass
- TH2F *f2dHistXiPtVsEffMassOmegaPlus; //! casc. transv. momemtum Vs Omega+ Eff mass
+
+ // PART 2 : TH3F needed for pt spectrum and yield extraction
+ // Without any PID
+ TH3F *f3dHistXiPtVsEffMassVsYXiMinus; //! casc. transv. momemtum Vs Xi- Eff mass Vs Y
+ TH3F *f3dHistXiPtVsEffMassVsYXiPlus; //! casc. transv. momemtum Vs Xi+ Eff mass Vs Y
+ TH3F *f3dHistXiPtVsEffMassVsYOmegaMinus; //! casc. transv. momemtum Vs Omega- Eff mass Vs Y
+ TH3F *f3dHistXiPtVsEffMassVsYOmegaPlus; //! casc. transv. momemtum Vs Omega+ Eff mass Vs Y
+
+ // With single PID : proton PID for Xi (pion = useless) / bachelor PID for Omega
+ // = a priori, the most important PID info for each species
+ TH3F *f3dHistXiPtVsEffMassVsYWithCombPIDXiMinus; //! casc. transv. momemtum Vs Xi- Eff mass Vs Y
+ TH3F *f3dHistXiPtVsEffMassVsYWithCombPIDXiPlus; //! casc. transv. momemtum Vs Xi+ Eff mass Vs Y
+ TH3F *f3dHistXiPtVsEffMassVsYWithCombPIDOmegaMinus; //! casc. transv. momemtum Vs Omega- Eff mass Vs Y
+ TH3F *f3dHistXiPtVsEffMassVsYWithCombPIDOmegaPlus; //! casc. transv. momemtum Vs Omega+ Eff mass Vs Y
+
+ // With double PID : proton PID + bachelor PID for Omega
+ // = "second order" refinement for omegas
+ TH3F *f3dHistXiPtVsEffMassVsYWith2CombPIDOmegaMinus; //! casc. transv. momemtum Vs Omega- Eff mass Vs Y
+ TH3F *f3dHistXiPtVsEffMassVsYWith2CombPIDOmegaPlus; //! casc. transv. momemtum Vs Omega+ Eff mass Vs Y
+
+ // With TPC PID : 3-sigma band on the Bethe-Bloch curve
+ // = directly detector-based
+ TH3F *f3dHistXiPtVsEffMassVsYWithTpcPIDOmegaMinus; //! casc. transv. momemtum Vs Omega- Eff mass Vs Y
+
+ // Compilation of all PID plots (3D = casc. transv. momemtum Vs Casc Eff mass Vs Y), stored into an AliCFContainer
+ AliCFContainer *fCFContCascadePIDXiMinus; //! for Xi- : Container to store any 3D histos with the different PID flavours
+ AliCFContainer *fCFContCascadePIDXiPlus; //! for Xi+ : Container to store any 3D histos with the different PID flavours
+ AliCFContainer *fCFContCascadePIDOmegaMinus; //! for Omega-: Container to store any 3D histos with the different PID flavours
+ AliCFContainer *fCFContCascadePIDOmegaPlus; //! for Omega+: Container to store any 3D histos with the different PID flavours
+
+
+
+ // PART 3 : Towards the optimisation of topological selections / systematics
+ AliCFContainer *fCFContCascadeCuts; //! Container meant to store all the relevant distributions corresponding to the cut variables
+
+
+ // PART 4 : Azimuthal correlation study
+ THnSparseF *fHnSpAngularCorrXiMinus; //! Delta Phi(Casc,any trck) Vs Delta Eta(Casc,any trck) Vs Casc Pt Vs Pt of the tracks Vs Eff Mass
+ THnSparseF *fHnSpAngularCorrXiPlus; //! Delta Phi(Casc,any trck) Vs Delta Eta(Casc,any trck) Vs Casc Pt Vs Pt of the tracks Vs Eff Mass
+ THnSparseF *fHnSpAngularCorrOmegaMinus; //! Delta Phi(Casc,any trck) Vs Delta Eta(Casc,any trck) Vs Casc Pt Vs Pt of the tracks Vs Eff Mass
+ THnSparseF *fHnSpAngularCorrOmegaPlus; //! Delta Phi(Casc,any trck) Vs Delta Eta(Casc,any trck) Vs Casc Pt Vs Pt of the tracks Vs Eff Mass
+
AliAnalysisTaskCheckCascade(const AliAnalysisTaskCheckCascade&); // not implemented
AliAnalysisTaskCheckCascade& operator=(const AliAnalysisTaskCheckCascade&); // not implemented
- ClassDef(AliAnalysisTaskCheckCascade, 3);
+ ClassDef(AliAnalysisTaskCheckCascade, 11);
};
#endif
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff