Count events with different selection criteria. More...

#include <AliAnalysisTaskCounter.h>

Inheritance diagram for AliAnalysisTaskCounter:

Public Member Functions
	AliAnalysisTaskCounter ()
	Default Constructor. More...

	AliAnalysisTaskCounter (const char *name)
	Constructor. More...

virtual	~AliAnalysisTaskCounter ()
	Destructor. More...

virtual void	UserCreateOutputObjects ()
	Init histogram pointers and add them to container. More...

virtual void	UserExec (Option_t *option)

virtual void	FinishTaskOutput ()
	Put in the output some event summary histograms. More...

virtual Bool_t	Notify ()

void	SetTrackMultiplicityEtaCut (Float_t eta)

void	SetZVertexCut (Float_t vcut)

void	AcceptFastCluster ()

void	RejectFastCluster ()

Bool_t	IsFastClusterAccepted () const

Bool_t	CheckForPrimaryVertex ()

void	SwitchOnMCCrossSectionCalculation ()

void	SwitchOffMCCrossSectionCalculation ()

void	SwitchOnAliCentrality ()

void	SwitchOffAliCentrality ()

void	SetCentralityClass (TString name)

TString	GetCentralityClass () const

Static Public Member Functions
static Bool_t	PythiaInfoFromFile (TString currFile, Float_t &xsec, Float_t &trials)

Private Member Functions
	AliAnalysisTaskCounter (const AliAnalysisTaskCounter &)
	Copy constructor not implemented. More...

AliAnalysisTaskCounter &	operator= (const AliAnalysisTaskCounter &)
	Assignment operator not implemented. More...

Private Attributes
Bool_t	fAcceptFastCluster
	Accept events from fast cluster, exclude these events for LHC11a. More...

Float_t	fZVertexCut
	Z vertex cut. More...

Float_t	fTrackMultEtaCut
	Track multiplicity eta cut. More...

Float_t	fAvgTrials
	Average number of event trials. More...

TList *	fOutputContainer
	! Histogram container. More...

AliESDtrackCuts *	fESDtrackCuts
	Track cut. More...

TString	fCurrFileName
	Current file path name. More...

Bool_t	fCheckMCCrossSection
	Retrieve from the pyxsec.root file only if requested. More...

Bool_t	fUseAliCentrality
	Use the centrality estimator from AliCentrality or AliMultSelection. More...

TString	fCentralityClass
	Multiplicity percentile/centrality estimator, for ex. V0M. More...

TH1I *	fhNEvents
	! Events that delivers the analysis frame after different assumptions. More...

TH1F *	fhXVertex
	! X Vertex distribution. More...

TH1F *	fhYVertex
	! Y Vertex distribution. More...

TH1F *	fhZVertex
	! Z Vertex distribution. More...

TH1F *	fhXGoodVertex
	! X Vertex distribution, after event selection. More...

TH1F *	fhYGoodVertex
	! Y Vertex distribution, after event selection. More...

TH1F *	fhZGoodVertex
	! Z Vertex distribution, after event selection. More...

TH1F *	fhCentrality
	! Centrality. More...

TH1F *	fhEventPlaneAngle
	! Event plane angle. More...

TH1F *	fh1Xsec
	! Cross section in PYTHIA. More...

TH1F *	fh1Trials
	! Number of event trials in PYTHIA. More...

Detailed Description

Count events with different selection criteria.

It produces a histogram, fhNEvents, with the number of events with 9 bins representing different selection criteria:

1: all events (that passed the physics selection if it was on)
2: same but cross check that event pointer did exist (not really necessary) and if the trigger cluster is not FAST if fAcceptFastCluster=1
3: passes z vertex cut, settable fZVertexCut (10 cm)
4: passes track multiplicity cut, at least one track in:
- eta < 0.8
- passing AliESDtrackCuts fESDtrackCuts cuts for ESDs or Hybrid tracks for AODs
5: 3 && 4
6: pass V0AND
7: 6 && 3
8: 6 && 4
9: 6 && 5
10: not pileup from SPD event->IsPileupFromSPD(3, 0.8, 3., 2., 5.)
11: Good (primary, not 0,0,0) vertex
12: 11 && 3
13: 11 && 4
14: 11 && 6
15: 11 && 9
16: 11 && 10
17: 10 && 6
18: special case of EMCal bad events, cluster with too large energy and cells
19: 18 & 3
20: special case of EMCal bad events, !18 & too many cells with E avobe a cut
21: 20 & 3

Other histograms:

event vertex X,Y,Z before and after event selection
event plane, centrality

This class also recovers the cross section and number of trials in case of MC PYTHIA productions done in pT-hard bins, and stores them in a histogram fh1Xsec and fh1Trials

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-IN2P3-CNRS

Definition at line 55 of file AliAnalysisTaskCounter.h.

Constructor & Destructor Documentation

AliAnalysisTaskCounter::AliAnalysisTaskCounter ( )

Default Constructor.

Definition at line 69 of file AliAnalysisTaskCounter.cxx.

AliAnalysisTaskCounter::AliAnalysisTaskCounter ( const char * name )

Constructor.

Definition at line 46 of file AliAnalysisTaskCounter.cxx.

AliAnalysisTaskCounter::~AliAnalysisTaskCounter ( )

virtual

Destructor.

Definition at line 91 of file AliAnalysisTaskCounter.cxx.

AliAnalysisTaskCounter::AliAnalysisTaskCounter ( const AliAnalysisTaskCounter & )

private

Copy constructor not implemented.

Member Function Documentation

void AliAnalysisTaskCounter::AcceptFastCluster ( )

inline

Definition at line 78 of file AliAnalysisTaskCounter.h.

Bool_t AliAnalysisTaskCounter::CheckForPrimaryVertex ( )

Check if the vertex was well reconstructed, copy of PCM.

Definition at line 410 of file AliAnalysisTaskCounter.cxx.

Referenced by UserExec().

void AliAnalysisTaskCounter::FinishTaskOutput ( )

virtual

Put in the output some event summary histograms.

Definition at line 469 of file AliAnalysisTaskCounter.cxx.

TString AliAnalysisTaskCounter::GetCentralityClass ( ) const

inline

Definition at line 91 of file AliAnalysisTaskCounter.h.

Bool_t AliAnalysisTaskCounter::IsFastClusterAccepted ( ) const

inline

Definition at line 80 of file AliAnalysisTaskCounter.h.

Bool_t AliAnalysisTaskCounter::Notify ( )

virtual

Implemented Notify() to read the cross sections and number of trials from pyxsec.root, values stored in specific histograms.

Definition at line 491 of file AliAnalysisTaskCounter.cxx.

Referenced by UserExec().

AliAnalysisTaskCounter& AliAnalysisTaskCounter::operator= ( const AliAnalysisTaskCounter & )

private

Assignment operator not implemented.

Bool_t AliAnalysisTaskCounter::PythiaInfoFromFile	(	TString	file,
		Float_t &	xsec,
		Float_t &	trials
	)

static

This method gets and returns the

Parameters

file	: either pyxsec.root (ESDs) or pysec_hists.root (AODs) files
xsec	: cross section
trials	: number of event trials that should be located where the main data file is. This is called in Notify and should provide the path to the AOD/ESD file

Definition at line 584 of file AliAnalysisTaskCounter.cxx.

Referenced by Notify().

void AliAnalysisTaskCounter::RejectFastCluster ( )

inline

Definition at line 79 of file AliAnalysisTaskCounter.h.

void AliAnalysisTaskCounter::SetCentralityClass ( TString name )

inline

Definition at line 90 of file AliAnalysisTaskCounter.h.

void AliAnalysisTaskCounter::SetTrackMultiplicityEtaCut ( Float_t eta )

inline

Definition at line 75 of file AliAnalysisTaskCounter.h.

void AliAnalysisTaskCounter::SetZVertexCut ( Float_t vcut )

inline

Definition at line 76 of file AliAnalysisTaskCounter.h.

void AliAnalysisTaskCounter::SwitchOffAliCentrality ( )

inline

Definition at line 88 of file AliAnalysisTaskCounter.h.

void AliAnalysisTaskCounter::SwitchOffMCCrossSectionCalculation ( )

inline

Definition at line 85 of file AliAnalysisTaskCounter.h.

Referenced by AddTaskCounter().

void AliAnalysisTaskCounter::SwitchOnAliCentrality ( )

inline

Definition at line 87 of file AliAnalysisTaskCounter.h.

void AliAnalysisTaskCounter::SwitchOnMCCrossSectionCalculation ( )

inline

Definition at line 84 of file AliAnalysisTaskCounter.h.

Referenced by AddTaskCounter().

void AliAnalysisTaskCounter::UserCreateOutputObjects ( )

virtual

Init histogram pointers and add them to container.

Definition at line 110 of file AliAnalysisTaskCounter.cxx.

void AliAnalysisTaskCounter::UserExec ( Option_t * option )

virtual

Main event loop It does the event counting, depending on different cuts (see criteria in class description). It fills the event vertex, centrality and plane histograms

Definition at line 196 of file AliAnalysisTaskCounter.cxx.