Cluster-track matcher component in the EMCal correction framework. More...

#include <AliEmcalCorrectionClusterTrackMatcher.h>

Inheritance diagram for AliEmcalCorrectionClusterTrackMatcher:

Public Member Functions
	AliEmcalCorrectionClusterTrackMatcher ()

virtual	~AliEmcalCorrectionClusterTrackMatcher ()

Bool_t	Initialize ()

void	UserCreateOutputObjects ()

Bool_t	Run ()

Public Member Functions inherited from AliEmcalCorrectionComponent
	AliEmcalCorrectionComponent ()

	AliEmcalCorrectionComponent (const char *name)

virtual	~AliEmcalCorrectionComponent ()

virtual void	ExecOnce ()

virtual Bool_t	UserNotify ()

virtual Bool_t	CheckIfRunChanged ()

void	GetEtaPhiDiff (const AliVTrack t, const AliVCluster v, Double_t &phidiff, Double_t &etadiff)

void	UpdateCells ()

void	GetPass ()

void	FillCellQA (TH1F *h)

Int_t	InitBadChannels ()

AliClusterContainer *	GetClusterContainer ()

AliParticleContainer *	GetParticleContainer ()

AliVCaloCells *	GetCaloCells ()

TList *	GetOutputList ()

void	SetClusterContainer (AliClusterContainer *cont)

void	SetParticleContainer (AliParticleContainer *cont)

void	SetCaloCells (AliVCaloCells *cells)

void	SetRecoUtils (AliEMCALRecoUtils *ru)

void	SetEvent (AliVEvent *event)

void	SetMCEvent (AliMCEvent *mcevent)

void	SetEMCALGeometry (AliEMCALGeometry *geometry)

void	SetCentralityBin (Int_t bin)

void	SetCentrality (Double_t cent)

void	SetNcentralityBins (Int_t n)

void	SetIsESD (Bool_t isESD)

void	SetUserConfiguration (YAML::Node &node)
	Make copy to ensure that the nodes do not point to each other (?) More...

void	SetDefaultConfiguration (YAML::Node &node)

template<typename T >
bool	GetProperty (std::string propertyName, T &property, bool requiredProperty=true, std::string correctionName="")
	Retrieve property. More...

Protected Member Functions
Int_t	GetMomBin (Double_t p) const

void	GenerateEmcalParticles ()

void	DoMatching ()

void	UpdateTracks ()

void	UpdateClusters ()

Bool_t	IsTrackInEmcalAcceptance (AliVParticle *part, Double_t edges=0.9) const

Protected Attributes
Double_t	fPropDist
	distance to surface (440cm default) More...

Bool_t	fDoPropagation
	if true then propagate all hybrid tracks to EMCal surface More...

Bool_t	fAttemptProp
	if true then attempt to propagate if not done yet More...

Bool_t	fAttemptPropMatch
	if true then attempt to propagate if not done yet but IsEMCAL is true More...

Double_t	fMaxDistance
	maximum distance to match clusters and tracks More...

Bool_t	fUpdateTracks
	update tracks with matching info More...

Bool_t	fUpdateClusters
	update clusters with matching info More...

TClonesArray *	fEmcalTracks
	!emcal tracks More...

TClonesArray *	fEmcalClusters
	!emcal clusters More...

Int_t	fNEmcalTracks
	!number of emcal tracks More...

Int_t	fNEmcalClusters
	!number of emcal clusters More...

TH1 *	fHistMatchEtaAll
	!deta distribution More...

TH1 *	fHistMatchPhiAll
	!dphi distribution More...

TH1 *	fHistMatchEta [10][9][2]
	!deta distribution More...

TH1 *	fHistMatchPhi [10][9][2]
	!dphi distribution More...

Protected Attributes inherited from AliEmcalCorrectionComponent
YAML::Node	fUserConfiguration
	! User YAML configuration More...

YAML::Node	fDefaultConfiguration
	! Default YAML configuration More...

Bool_t	fCreateHisto
	Flag to make some basic histograms. More...

Int_t	fRun
	! Run number More...

TString	fFilepass
	Input data pass number. More...

Bool_t	fGetPassFromFileName
	Get fFilepass from file name. More...

AliVEvent *	fEvent
	! Pointer to event More...

Bool_t	fEsdMode
	flag for ESD More...

AliMCEvent *	fMCEvent
	! MC More...

Double_t	fCent
	! Event centrality More...

Int_t	fNcentBins
	How many centrality bins (this member copied from AliAnalysisTaskEmcal) More...

Int_t	fCentBin
	! Event centrality bin More...

Int_t	fNbins
	No. of pt bins. More...

Double_t	fMinBinPt
	Min pt in histograms. More...

Double_t	fMaxBinPt
	Max pt in histograms. More...

Double_t	fVertex [3]
	! Event vertex More...

AliEMCALGeometry *	fGeom
	! Geometry object More...

Bool_t	fIsEmbedded
	Trigger, embedded signal. More...

Int_t	fMinMCLabel
	Minimum MC label value for the tracks/clusters being considered MC particles. More...

AliClusterContainer *	fClusCont
	Pointer to the cluster container. More...

AliParticleContainer *	fPartCont
	Pointer to the track/particle container. More...

AliVCaloCells *	fCaloCells
	! Pointer to CaloCells More...

AliEMCALRecoUtils *	fRecoUtils
	Pointer to RecoUtils. More...

TList *	fOutput
	! List of output histograms More...

TString	fBasePath
	Base folder path to get root files. More...

Private Member Functions
	AliEmcalCorrectionClusterTrackMatcher (const AliEmcalCorrectionClusterTrackMatcher &)

AliEmcalCorrectionClusterTrackMatcher &	operator= (const AliEmcalCorrectionClusterTrackMatcher &)

Static Private Attributes
static RegisterCorrectionComponent < AliEmcalCorrectionClusterTrackMatcher >	reg

Additional Inherited Members
Static Public Member Functions inherited from AliEmcalCorrectionComponent
template<typename T >
static bool	GetProperty (std::string propertyName, T &property, const YAML::Node &userConfiguration, const YAML::Node &defaultConfiguration, bool requiredProperty=true, std::string correctionName="")
	Retrieve property driver function. It is static so that it can be used by other classes. More...

static bool	IsSharedValue (std::string &value)

Static Protected Member Functions inherited from AliEmcalCorrectionComponent
template<typename T >
static bool	GetPropertyFromNodes (const YAML::Node &node, const YAML::Node &sharedParametersNode, std::string propertyName, T &property, const std::string correctionName, const std::string configurationType, int nodesDeep=0)

template<typename T >
static bool	GetPropertyFromNode (const YAML::Node &node, std::string propertyName, T &property)

template<typename T >
static std::enable_if <!std::is_arithmetic< T > ::value &&!std::is_same< T, std::string >::value &&!std::is_same< T, bool > ::value >::type	PrintRetrievedPropertyValue (T &property, std::stringstream &tempMessage)

template<typename T >
static std::enable_if < std::is_arithmetic< T > ::value\|\|std::is_same< T, std::string >::value\|\|std::is_same < T, bool >::value >::type	PrintRetrievedPropertyValue (T &property, std::stringstream &tempMessage)

Detailed Description

Cluster-track matcher component in the EMCal correction framework.

Tracks and clusters are matched using a simple geometrical algorithm. Multiple tracks can be matched to a single cluster; however only one cluster can be matched to a track. The default configuration of the task is such that it will attempt track propagation to the EMCal surface (440 cm) if the track is not already propagated. This means that the OCDB has to be loaded beforehand (e.g. using the CDBConnect task), as well as the geometry (handled automatically by AliEmcalCorrectionTask). This should usually work in both AOD and ESD events.

The number of tracks matched to a cluster can be retrieved using cluster->GetNTracksMatched(). Unfortunately the method to access the tracks matched to a cluster depend on the data format. For ESD clusters (AliESDCaloClusters):

Int_t iTrack = cluster->GetTrackMatchedIndex(i);

will return the position of the track in the array. The integer i is a number from 0 to cluster->GetNTracksMatched() -1. A pointer to the track object can be retrieved using:

AliVTrack* track = static_cast<AliVTrack*>(GetParticleContainer(0)->GetParticle(iTrack));

(assuming that the task is derived from AliAnalysisTaskEmcal or AliAnalysisTaskEmcalJet).

For AOD clusters (AliAODCaloClusters) the method:

AliVTrack* track = static_cast<AliVTrack*>(cluster->GetTrackMatched(i));

will directly return a pointer to the matched track.

To get the cluster matched to a track one can use (both ESD and AOD):

Int_t iCluster = track->GetEMCALcluster();

This will return the index of the cluster. To get a pointer to the cluster object:

AliVCluster *cluster = GetClusterContainer(0)->GetCluster(iCluster);

(again assuming that the task is derived from AliAnalysisTaskEmcal or AliAnalysisTaskEmcalJet).

Based on code in AliEmcalClusTrackMatcherTask.

Author: Constantin Loizides, LBNL, AliEmcalClusTrackMatcherTask; Salvatore Aiola, LBNL, AliEmcalClusTrackMatcherTask; James Mulligan james.nosp@m..mul.nosp@m.ligan.nosp@m.@yal.nosp@m.e.edu, Yale University, centralize EMCal corrections using components; Raymond Ehlers raymo.nosp@m.nd.e.nosp@m.hlers.nosp@m.@yal.nosp@m.e.edu, Yale University, centralize EMCal corrections using components

Date: Jul 8, 2016

Definition at line 53 of file AliEmcalCorrectionClusterTrackMatcher.h.

Constructor & Destructor Documentation

AliEmcalCorrectionClusterTrackMatcher::AliEmcalCorrectionClusterTrackMatcher ( )

Default constructor

Definition at line 28 of file AliEmcalCorrectionClusterTrackMatcher.cxx.

AliEmcalCorrectionClusterTrackMatcher::~AliEmcalCorrectionClusterTrackMatcher ( )

virtual

Destructor

Definition at line 57 of file AliEmcalCorrectionClusterTrackMatcher.cxx.

AliEmcalCorrectionClusterTrackMatcher::AliEmcalCorrectionClusterTrackMatcher ( const AliEmcalCorrectionClusterTrackMatcher & )

private

Member Function Documentation

void AliEmcalCorrectionClusterTrackMatcher::DoMatching ( )

protected

Set the links between tracks and clusters.

Definition at line 247 of file AliEmcalCorrectionClusterTrackMatcher.cxx.

Referenced by Run().

void AliEmcalCorrectionClusterTrackMatcher::GenerateEmcalParticles ( )

protected

Create AliEmcalParticle collections to handle the matching efficiently. At the same time propagates tracks, if requested.

Definition at line 167 of file AliEmcalCorrectionClusterTrackMatcher.cxx.

Referenced by Run().

Int_t AliEmcalCorrectionClusterTrackMatcher::GetMomBin ( Double_t p ) const

protected

Get momentum bin.

Definition at line 138 of file AliEmcalCorrectionClusterTrackMatcher.cxx.

Referenced by DoMatching().

Bool_t AliEmcalCorrectionClusterTrackMatcher::Initialize ( )

virtual

Initialize and configure the component.

Reimplemented from AliEmcalCorrectionComponent.

Definition at line 64 of file AliEmcalCorrectionClusterTrackMatcher.cxx.

Bool_t AliEmcalCorrectionClusterTrackMatcher::IsTrackInEmcalAcceptance	(	AliVParticle *	part,
		Double_t	edges = `0.9`
	)		const

protected

Determines if a track is inside the EMCal acceptance, using \(\eta\)/ \(\phi\) at the vertex (no propagation). Includes +/- edges. Useful to determine whether track propagation should be attempted.

Parameters