Some utilities for track matching. More...

#include <AliEMCALRecoUtilsBase.h>

Inheritance diagram for AliEMCALRecoUtilsBase:

Public Types
enum	ParticleType { kPhoton =0, kElectron =1, kHadron =2, kUnknown =-1 }
	Position depth enum list of possible particle types. More...

Public Member Functions
	AliEMCALRecoUtilsBase ()

	AliEMCALRecoUtilsBase (const AliEMCALRecoUtilsBase &)

AliEMCALRecoUtilsBase &	operator= (const AliEMCALRecoUtilsBase &)

virtual	~AliEMCALRecoUtilsBase ()

Float_t	GetDepth (Float_t eCluster, Int_t iParticle, Int_t iSM) const

Static Public Member Functions
static Bool_t	ExtrapolateTrackToEMCalSurface (AliVTrack *track, Double_t emcalR=440, Double_t mass=0.1396, Double_t step=20, Double_t minpT=0.35, Bool_t useMassForTracking=kFALSE, Bool_t useDCA=kFALSE)

static Bool_t	ExtrapolateTrackToEMCalSurface (AliExternalTrackParam *trkParam, Double_t emcalR, Double_t mass, Double_t step, Float_t &eta, Float_t &phi, Float_t &pt)

static Bool_t	ExtrapolateTrackToPosition (AliExternalTrackParam trkParam, const Float_t clsPos, Double_t mass, Double_t step, Float_t &tmpEta, Float_t &tmpPhi)

static Bool_t	ExtrapolateTrackToCluster (AliExternalTrackParam trkParam, const AliVCluster cluster, Double_t mass, Double_t step, Float_t &tmpEta, Float_t &tmpPhi)

Detailed Description

Some utilities for track matching.

This is the base class to correct and select the clusters and cells at analysis level. In this class only track-matching related methods. Most of the corrections implemented in AliEMCALRecoUtils (in AliPhysics from v5-09-26)

Author: : 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- Grenoble; : Rongrong Ma, Yale. Track matching part

Definition at line 30 of file AliEMCALRecoUtilsBase.h.

Member Enumeration Documentation

enum AliEMCALRecoUtilsBase::ParticleType

Position depth enum list of possible particle types.

Enumerator
kPhoton
kElectron
kHadron
kUnknown

Definition at line 75 of file AliEMCALRecoUtilsBase.h.

Constructor & Destructor Documentation

AliEMCALRecoUtilsBase::AliEMCALRecoUtilsBase ( )

Constructor. Initialize all constant values which have to be used during Reco algorithm execution

Definition at line 41 of file AliEMCALRecoUtilsBase.cxx.

AliEMCALRecoUtilsBase::AliEMCALRecoUtilsBase ( const AliEMCALRecoUtilsBase & reco )

Definition at line 49 of file AliEMCALRecoUtilsBase.cxx.

virtual AliEMCALRecoUtilsBase::~AliEMCALRecoUtilsBase ( )

inlinevirtual

Definition at line 40 of file AliEMCALRecoUtilsBase.h.

Member Function Documentation

Bool_t AliEMCALRecoUtilsBase::ExtrapolateTrackToCluster	(	AliExternalTrackParam *	trkParam,
		const AliVCluster *	cluster,
		Double_t	mass,
		Double_t	step,
		Float_t &	tmpEta,
		Float_t &	tmpPhi
	)

static

Return the residual by extrapolating a track param to a cluster. Used in AliEMCALReconstructor.

Parameters

trkParam	pointer to external track param
cluster	pointer to AliVCluster
mass	mass hypothesis
step	...
tmpEta	residual eta
tmpPhi	residual phi

Returns: bool true if track could be extrapolated

Definition at line 305 of file AliEMCALRecoUtilsBase.cxx.

Referenced by AliEMCALReconstructor::CalculateResidual(), and ~AliEMCALRecoUtilsBase().

Bool_t AliEMCALRecoUtilsBase::ExtrapolateTrackToEMCalSurface	(	AliVTrack *	track,
		Double_t	emcalR = `440`,
		Double_t	mass = `0.1396`,
		Double_t	step = `20`,
		Double_t	minpt = `0.35`,
		Bool_t	useMassForTracking = `kFALSE`,
		Bool_t	useDCA = `kFALSE`
	)

static

Extrapolate track to EMCAL surface. NOTE, on success the call will change the track! Used in AliAnalysisTaskESDfilter and AliEMCALRecoUtilsBase::ExtrapolateTrackToEMCalSurface(AliExternalTrackParam *trkParam, ...)

Parameters

track	pointer to track
emcalR	distance
mass	mass hypothesis
step	...
minpt	minimum track pT for matching
useMassForTracking	switch to use the mass hypothesis
useDCA	switch to use different track vertex

Returns: bool true if track could be extrapolated

Definition at line 82 of file AliEMCALRecoUtilsBase.cxx.

Referenced by AliEMCALTracker::FindMatchedCluster(), and ~AliEMCALRecoUtilsBase().

Bool_t AliEMCALRecoUtilsBase::ExtrapolateTrackToEMCalSurface	(	AliExternalTrackParam *	trkParam,
		Double_t	emcalR,
		Double_t	mass,
		Double_t	step,
		Float_t &	eta,
		Float_t &	phi,
		Float_t &	pt
	)

static

Extrapolate track to EMCAL surface. Used in AliEMCALTracker.

Parameters

trkParam	pointer to external track param
emcalR	distance
mass	mass hypothesis
step	...
eta	track extrapolated eta
phi	track extrapolated phi
pt	track extrapolated pt

Returns: bool true if track could be extrapolated

Definition at line 207 of file AliEMCALRecoUtilsBase.cxx.

Bool_t AliEMCALRecoUtilsBase::ExtrapolateTrackToPosition	(	AliExternalTrackParam *	trkParam,
		const Float_t *	clsPos,
		Double_t	mass,
		Double_t	step,
		Float_t &	tmpEta,
		Float_t &	tmpPhi
	)

static

Return the residual by extrapolating a track param to a global position. Used in AliEMCALTracker

Parameters

trkParam	pointer to external track param
clsPos	cluster position array xyz
mass	mass hypothesis
step	...
tmpEta	residual eta
tmpPhi	residual phi

Returns: bool true if track could be extrapolated

Definition at line 250 of file AliEMCALRecoUtilsBase.cxx.

Referenced by ExtrapolateTrackToCluster(), AliEMCALTracker::FindMatchedCluster(), and ~AliEMCALRecoUtilsBase().

Float_t AliEMCALRecoUtilsBase::GetDepth	(	Float_t	energy,
		Int_t	iParticle,
		Int_t	iSM
	)		const

Calculate shower depth for a given cluster energy and particle type. Needed to calculate cluster position.

Parameters

energy	cluster energy
iParticle	particle assumption defined in enum ParticleType
iSM	supermodule number

Definition at line 333 of file AliEMCALRecoUtilsBase.cxx.

AliEMCALRecoUtilsBase & AliEMCALRecoUtilsBase::operator= ( const AliEMCALRecoUtilsBase & reco )

Assignment operator.

Definition at line 58 of file AliEMCALRecoUtilsBase.cxx.

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

EMCAL/EMCALUtils/AliEMCALRecoUtilsBase.h
EMCAL/EMCALUtils/AliEMCALRecoUtilsBase.cxx

Public Types

Public Member Functions

Static Public Member Functions

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation