Steer EMCal-Track matching. More...

#include <AliEMCALTracker.h>

Inheritance diagram for AliEMCALTracker:

Classes
class	AliEMCALMatchCluster

Public Types
enum	{ kUnmatched = -99999 }

Public Member Functions
	AliEMCALTracker ()

	AliEMCALTracker (const AliEMCALTracker &t)

AliEMCALTracker &	operator= (const AliEMCALTracker &source)

virtual	~AliEMCALTracker ()

virtual void	Clear (Option_t *option="ALL")

virtual Int_t	Clusters2Tracks (AliESDEvent *)

void	InitParameters ()

virtual Int_t	LoadClusters (TTree *)

Int_t	LoadClusters (AliESDEvent *esd)

Int_t	LoadTracks (AliESDEvent *esd)

virtual Int_t	PropagateBack (AliESDEvent *esd)

virtual Int_t	RefitInward (AliESDEvent *)

virtual void	UnloadClusters ()

virtual AliCluster *	GetCluster (Int_t) const

void	SetCutEta (Double_t value)

void	SetCutPhi (Double_t value)

void	SetCutPt (Double_t value)

void	SetCutNITS (Double_t value)

void	SetCutNTPC (Double_t value)

void	SetTrackInITS (Bool_t value)

void	SetStepLength (Float_t length)

void	SetTrackCorrectionMode (Option_t *option)

void	SetEMCalSurfaceDistance (Double_t d)

void	SetGeometry (AliEMCALGeometry *geom)

Public Member Functions inherited from AliTracker
	AliTracker ()

virtual	~AliTracker ()

virtual Int_t	Clusters2TracksHLT (AliESDEvent event, const AliESDEvent )

virtual Int_t	PostProcess (AliESDEvent *)

virtual void	FillClusterArray (TObjArray *array) const

virtual AliPlaneEff *	GetPlaneEff ()

virtual Bool_t	GetTrackPoint (Int_t, AliTrackPoint &) const

virtual Bool_t	GetTrackPointTrackingError (Int_t, AliTrackPoint &, const AliESDtrack *)

virtual void	UseClusters (const AliKalmanTrack *t, Int_t from=0) const

virtual void	CookLabel (AliKalmanTrack *t, Float_t wrong) const

void	SetEventInfo (AliEventInfo *evInfo)

const AliEventInfo *	GetEventInfo () const

virtual Bool_t	OwnsESDObjects () const

virtual void	CleanESDFriendsObjects (AliESDEvent *)

virtual void	CleanESDObjects (AliESDEvent *)

virtual void	CleanESDTracksObjects (TObjArray *trList)

Int_t	GetNumberOfClusters () const

Public Member Functions inherited from AliTrackerBase
	AliTrackerBase ()

virtual	~AliTrackerBase ()

void	SetVertex (const Double_t xyz, const Double_t ers=0)

Double_t	GetX () const

Double_t	GetY () const

Double_t	GetZ () const

Double_t	GetSigmaX () const

Double_t	GetSigmaY () const

Double_t	GetSigmaZ () const

UInt_t	GetTimeStamp () const

Int_t	GetRunNumber () const

void	SetTimeStamp (UInt_t t)

void	SetRunNumber (int run)

Private Types
enum	ETrackCorr { kTrackCorrNone = 0, kTrackCorrMMB = 1 }

Private Member Functions
Int_t	FindMatchedCluster (AliESDtrack *track)

Private Attributes
Double_t	fCutPt
	Minimum pT cut on tracks. More...

Double_t	fCutNITS
	Minimum number of track hits in the ITS. More...

Double_t	fCutNTPC
	Minimum number of track hits in the TPC. More...

Float_t	fStep
	Length of each step in propagation. More...

ETrackCorr	fTrackCorrMode
	Material budget correction mode. More...

Float_t	fEMCalSurfaceDistance
	EMCal surface distance. More...

Double_t	fClusterWindow
	Select clusters in the window to be matched to tracks. More...

Double_t	fCutEta
	cut on eta difference More...

Double_t	fCutPhi
	cut on phi difference More...

Bool_t	fITSTrackSA
	If no TPC, use ITS Tracks. More...

Bool_t	fTrackInITS
	Requiere ITS refit with AliVTrack::kITSout. More...

TObjArray *	fTracks
	! Collection of tracks More...

TObjArray *	fClusters
	! Collection of EMCAL clusters (ESDCaloCluster or EMCALRecPoint) More...

AliEMCALGeometry *	fGeom
	! EMCAL geometry More...

Additional Inherited Members
Static Public Member Functions inherited from AliTracker
static void	FillResiduals (const AliExternalTrackParam t, Double_t p, Double_t *cov, UShort_t id, Bool_t updated=kTRUE)

static void	FillResiduals (const AliExternalTrackParam t, const AliCluster c, Bool_t updated=kTRUE)

static void	SetFillResiduals (AliRecoParam::EventSpecie_t es, Bool_t flag=kTRUE)

static void	SetResidualsArray (TObjArray **arr)

static TObjArray **	GetResidualsArray ()

Static Public Member Functions inherited from AliTrackerBase
static Double_t	GetTrackPredictedChi2 (AliExternalTrackParam track, Double_t mass, Double_t step, const AliExternalTrackParam backup)

static void	UpdateTrack (AliExternalTrackParam &, const AliExternalTrackParam &)

static Double_t	MeanMaterialBudget (const Double_t start, const Double_t end, Double_t *mparam)

static Bool_t	PropagateTrackTo (AliExternalTrackParam *track, Double_t x, Double_t m, Double_t maxStep, Bool_t rotateTo=kTRUE, Double_t maxSnp=0.8, Int_t sign=0, Bool_t addTimeStep=kFALSE, Bool_t correctMaterialBudget=kTRUE)

static Int_t	PropagateTrackTo2 (AliExternalTrackParam *track, Double_t x, Double_t m, Double_t maxStep, Bool_t rotateTo=kTRUE, Double_t maxSnp=0.8, Int_t sign=0, Bool_t addTimeStep=kFALSE, Bool_t correctMaterialBudget=kTRUE)

static Bool_t	PropagateTrackToBxByBz (AliExternalTrackParam *track, Double_t x, Double_t m, Double_t maxStep, Bool_t rotateTo=kTRUE, Double_t maxSnp=0.8, Int_t sign=0, Bool_t addTimeStep=kFALSE, Bool_t correctMaterialBudget=kTRUE)

static Bool_t	PropagateTrackParamOnlyToBxByBz (AliExternalTrackParam *track, Double_t xToGo, Double_t maxStep, Bool_t rotateTo=kTRUE, Double_t maxSnp=0.8)

static Bool_t	PropagateTrackParamOnlyTo (AliExternalTrackParam *track, Double_t xToGo, Double_t maxStep, Bool_t rotateTo=kTRUE, Double_t maxSnp=0.8)

static Double_t	GetBz (const Double_t *r)

static void	GetBxByBz (const Double_t r[3], Double_t b[3])

static Double_t	GetBz ()

static Bool_t	UniformField ()

static Double_t	MakeC (Double_t x1, Double_t y1, Double_t x2, Double_t y2, Double_t x3, Double_t y3)

static Double_t	MakeSnp (Double_t x1, Double_t y1, Double_t x2, Double_t y2, Double_t x3, Double_t y3)

static Double_t	MakeTgl (Double_t x1, Double_t y1, Double_t x2, Double_t y2, Double_t z1, Double_t z2)

static Double_t	MakeTgl (Double_t x1, Double_t y1, Double_t x2, Double_t y2, Double_t z1, Double_t z2, Double_t c)

static AliExternalTrackParam *	MakeSeed (AliTrackPoint &point0, AliTrackPoint &point1, AliTrackPoint &point2)

static Double_t	FitTrack (AliExternalTrackParam trackParam, AliTrackPointArray pointArray, Double_t mass, Double_t maxStep)

Protected Member Functions inherited from AliTracker
	AliTracker (const AliTracker &atr)

Protected Member Functions inherited from AliTrackerBase
	AliTrackerBase (const AliTrackerBase &atr)

Protected Attributes inherited from AliTracker
Int_t	fNClusters
	pointer to the event info object More...

Detailed Description

Steer EMCal-Track matching.

Implementation of the track matching method between barrel tracks and EMCAL clusters. Besides algorithm implementation, some cuts are required to be set in order to define, for each track, an acceptance window where clusters are searched to find best match (if any). The class accepts as input an ESD container, and works directly on it, simply setting, for each of its tracks, the fEMCALindex flag, for each track which is matched to a cluster. In order to use method, one must launch PropagateBack().

Author: : A. Pulvirenti alber.nosp@m.to.p.nosp@m.ulvir.nosp@m.enti.nosp@m.@ct.i.nosp@m.nfn..nosp@m.it, Catania; : Rong Rong Ma, Yale: Adapt to data analysis tools and other fixes.; : Gustavo Conesa Balbastre Gusta.nosp@m.vo.C.nosp@m.onesa.nosp@m..Bal.nosp@m.bastr.nosp@m.e@ce.nosp@m.rn.ch, LPSC-IN2P3-CNRS, Run2 fixes

Definition at line 43 of file AliEMCALTracker.h.

Member Enumeration Documentation

anonymous enum

Enumerator
kUnmatched

Definition at line 78 of file AliEMCALTracker.h.

enum AliEMCALTracker::ETrackCorr

private

Enumerator
kTrackCorrNone	Do not correct for energy loss.
kTrackCorrMMB	Use MeanMaterialBudget() function to evaluate correction.

Definition at line 108 of file AliEMCALTracker.h.

Constructor & Destructor Documentation

AliEMCALTracker::AliEMCALTracker ( )

Default constructor. Initializes all simple data members to default values, and all collections to NULL. Output file name is set to a default value.

Definition at line 56 of file AliEMCALTracker.cxx.

Referenced by operator=().

AliEMCALTracker::AliEMCALTracker ( const AliEMCALTracker & copy )

Copy constructor. Besides copying all parameters, duplicates all collections.

Definition at line 81 of file AliEMCALTracker.cxx.

virtual AliEMCALTracker::~AliEMCALTracker ( )

inlinevirtual

Definition at line 49 of file AliEMCALTracker.h.

Member Function Documentation

void AliEMCALTracker::Clear ( Option_t * option = "ALL" )

virtual

Clearing method. Deletes all objects in arrays and the arrays themselves.

Definition at line 141 of file AliEMCALTracker.cxx.

Referenced by LoadClusters(), LoadTracks(), UnloadClusters(), and ~AliEMCALTracker().

virtual Int_t AliEMCALTracker::Clusters2Tracks ( AliESDEvent * )

inlinevirtual

Implements AliTracker.

Definition at line 53 of file AliEMCALTracker.h.

Int_t AliEMCALTracker::FindMatchedCluster ( AliESDtrack * track )

private

For each track, extrapolate it to all the clusters. Find the closest one as matched if the residuals (dEta, dPhi) satisfy the cuts.

Definition at line 416 of file AliEMCALTracker.cxx.

Referenced by PropagateBack().

virtual AliCluster* AliEMCALTracker::GetCluster ( Int_t ) const

inlinevirtual

Implements AliTracker.

Definition at line 64 of file AliEMCALTracker.h.

void AliEMCALTracker::InitParameters ( )

Retrieve initialization parameters.

Definition at line 116 of file AliEMCALTracker.cxx.

Referenced by AliEMCALTracker(), and Clusters2Tracks().

Int_t AliEMCALTracker::LoadClusters ( TTree * cTree )

virtual

Load EMCAL clusters in the form of AliEMCALRecPoint, from simulation temporary files. (When included in reconstruction chain, this method is used automatically).

Implements AliTracker.

Definition at line 175 of file AliEMCALTracker.cxx.

Referenced by Clusters2Tracks(), and PropagateBack().

Int_t AliEMCALTracker::LoadClusters ( AliESDEvent * esd )

Load EMCAL clusters in the form of AliESDCaloClusters, from an AliESD object.

Definition at line 222 of file AliEMCALTracker.cxx.

Int_t AliEMCALTracker::LoadTracks ( AliESDEvent * esd )

Load ESD tracks. Filter them depending on loose track and acceptance cuts.

If TPC is not present, try matching with ITS tracks only. Set the flag fITSTrackSA.

Definition at line 250 of file AliEMCALTracker.cxx.

Referenced by Clusters2Tracks(), and PropagateBack().

AliEMCALTracker & AliEMCALTracker::operator= ( const AliEMCALTracker & source )

Assignment operator; use copy ctor.

Definition at line 104 of file AliEMCALTracker.cxx.

Int_t AliEMCALTracker::PropagateBack ( AliESDEvent * esd )

virtual

Main operation method. Gets external AliESD containing tracks to be matched. After executing match finding, stores in the same ESD object all infos and releases the object for further reconstruction steps.

Note: should always return 0=OK, because otherwise all tracking is aborted for this event.

Implements AliTracker.

Definition at line 369 of file AliEMCALTracker.cxx.

Referenced by Clusters2Tracks().

virtual Int_t AliEMCALTracker::RefitInward ( AliESDEvent * )

inlinevirtual

Implements AliTracker.

Definition at line 61 of file AliEMCALTracker.h.

void AliEMCALTracker::SetCutEta ( Double_t value )

inline

Definition at line 66 of file AliEMCALTracker.h.

void AliEMCALTracker::SetCutNITS ( Double_t value )

inline

Definition at line 69 of file AliEMCALTracker.h.

void AliEMCALTracker::SetCutNTPC ( Double_t value )

inline

Definition at line 70 of file AliEMCALTracker.h.

void AliEMCALTracker::SetCutPhi ( Double_t value )

inline

Definition at line 67 of file AliEMCALTracker.h.

void AliEMCALTracker::SetCutPt ( Double_t value )

inline

Definition at line 68 of file AliEMCALTracker.h.

void AliEMCALTracker::SetEMCalSurfaceDistance ( Double_t d )

inline

Definition at line 75 of file AliEMCALTracker.h.

void AliEMCALTracker::SetGeometry ( AliEMCALGeometry * geom )

inline

Definition at line 76 of file AliEMCALTracker.h.

void AliEMCALTracker::SetStepLength ( Float_t length )

inline

Definition at line 72 of file AliEMCALTracker.h.

void AliEMCALTracker::SetTrackCorrectionMode ( Option_t * option )

Set track correction mode gets the choice in string format and converts into internal enum.

Definition at line 347 of file AliEMCALTracker.cxx.

Referenced by SetStepLength().

void AliEMCALTracker::SetTrackInITS ( Bool_t value )

inline

Definition at line 71 of file AliEMCALTracker.h.

void AliEMCALTracker::UnloadClusters ( )

virtual

Free memory from all arrays. This method is called after the local tracking step. so we can safely delete everything.

Implements AliTracker.

Definition at line 505 of file AliEMCALTracker.cxx.

Referenced by RefitInward().

Member Data Documentation

TObjArray* AliEMCALTracker::fClusters

private

! Collection of EMCAL clusters (ESDCaloCluster or EMCALRecPoint)

Definition at line 127 of file AliEMCALTracker.h.

Referenced by Clear(), FindMatchedCluster(), LoadClusters(), and PropagateBack().

Double_t AliEMCALTracker::fClusterWindow

private

Select clusters in the window to be matched to tracks.

Definition at line 120 of file AliEMCALTracker.h.

Referenced by FindMatchedCluster().

Double_t AliEMCALTracker::fCutEta

private

cut on eta difference

Definition at line 121 of file AliEMCALTracker.h.

Referenced by FindMatchedCluster(), InitParameters(), and SetCutEta().

Double_t AliEMCALTracker::fCutNITS

private

Minimum number of track hits in the ITS.

Definition at line 114 of file AliEMCALTracker.h.

Referenced by InitParameters(), and SetCutNITS().

Double_t AliEMCALTracker::fCutNTPC

private

Minimum number of track hits in the TPC.

Definition at line 115 of file AliEMCALTracker.h.

Referenced by InitParameters(), LoadTracks(), and SetCutNTPC().

Double_t AliEMCALTracker::fCutPhi

private

cut on phi difference

Definition at line 122 of file AliEMCALTracker.h.

Referenced by FindMatchedCluster(), InitParameters(), and SetCutPhi().

Double_t AliEMCALTracker::fCutPt

private

Minimum pT cut on tracks.

Definition at line 113 of file AliEMCALTracker.h.

Referenced by InitParameters(), LoadTracks(), and SetCutPt().

Float_t AliEMCALTracker::fEMCalSurfaceDistance

private

EMCal surface distance.

Definition at line 119 of file AliEMCALTracker.h.

Referenced by FindMatchedCluster(), and SetEMCalSurfaceDistance().

AliEMCALGeometry* AliEMCALTracker::fGeom

private

! EMCAL geometry

Definition at line 129 of file AliEMCALTracker.h.

Referenced by FindMatchedCluster(), LoadTracks(), PropagateBack(), and SetGeometry().

Bool_t AliEMCALTracker::fITSTrackSA

private

If no TPC, use ITS Tracks.

Definition at line 123 of file AliEMCALTracker.h.

Referenced by FindMatchedCluster(), and LoadTracks().

Float_t AliEMCALTracker::fStep

private

Length of each step in propagation.

Definition at line 117 of file AliEMCALTracker.h.

Referenced by FindMatchedCluster(), InitParameters(), and SetStepLength().

ETrackCorr AliEMCALTracker::fTrackCorrMode

private

Material budget correction mode.

Definition at line 118 of file AliEMCALTracker.h.

Referenced by SetTrackCorrectionMode().

Bool_t AliEMCALTracker::fTrackInITS

private

Requiere ITS refit with AliVTrack::kITSout.

Definition at line 124 of file AliEMCALTracker.h.

Referenced by InitParameters(), LoadTracks(), and SetTrackInITS().

TObjArray* AliEMCALTracker::fTracks

private

! Collection of tracks

Definition at line 126 of file AliEMCALTracker.h.

Referenced by Clear(), LoadTracks(), and PropagateBack().

The documentation for this class was generated from the following files:

EMCAL/EMCALrec/AliEMCALTracker.h
EMCAL/EMCALrec/AliEMCALTracker.cxx

Classes

Public Types

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation