#include <AliFMDCorrVertexBias.h>

Inheritance diagram for AliFMDCorrVertexBias:

Public Member Functions
	AliFMDCorrVertexBias ()

	AliFMDCorrVertexBias (const AliFMDCorrVertexBias &o)

virtual	~AliFMDCorrVertexBias ()

Get corrections and parameters
AliFMDCorrVertexBias &	operator= (const AliFMDCorrVertexBias &o)

TH2D *	GetCorrection (Char_t r, Double_t v) const

TH2D *	GetCorrection (Char_t r, UShort_t b) const

const TAxis &	GetVertexAxis () const

Set corrections and parameters
Bool_t	SetCorrection (Char_t r, Double_t v, TH2D *h)

Bool_t	SetCorrection (Char_t r, UShort_t b, TH2D *h)

void	SetVertexAxis (const TAxis &axis)

void	SetVertexAxis (Int_t nBins, Double_t min, Double_t max)

Auxiliary member functions
Bool_t	IsFolder () const

void	Browse (TBrowser *b)

void	Print (Option_t *option="R") const

Protected Member Functions
Int_t	FindVertexBin (Double_t vertex) const

TObjArray *	GetVertexArray (UShort_t v) const

TObjArray *	GetOrMakeVertexArray (UShort_t v)

Protected Attributes
TObjArray	fVertexArray

TAxis	fVertexAxis

Detailed Description

This class contains the correction for the bias introduced by different vertex bins

The correction is given by

\[ b_{v}(\eta,\varphi) = \frac{1/N_{t}\sum_i^{N_{tv}} N_{ch,i,primary}}{ 1/N_{v}\sum_i^{N_{v}} N_{ch,i,primary}} \]

where \(N_{ch,i,primary}\) is the number of primary particles in the given \((\eta,\varphi)\), and where the denominator sum runs over all events with a vertex within the given vertex bin, and the sum in the numerator runs over only events that have a valid trigger and reconstructed vertex. \( N_{t}\) is the number of events with a valid trigger (but not necessarily a valid vertex). The vertex information used \(v\) is in all cases the MC truth vertex

These are generated from Monte-Carlo truth and ESD information.

Definition at line 45 of file AliFMDCorrVertexBias.h.

Constructor & Destructor Documentation

AliFMDCorrVertexBias::AliFMDCorrVertexBias ( )

Default constructor

Definition at line 12 of file AliFMDCorrVertexBias.cxx.

AliFMDCorrVertexBias::AliFMDCorrVertexBias ( const AliFMDCorrVertexBias & o )

Copy constructor

Parameters

o	Object to copy from

Definition at line 26 of file AliFMDCorrVertexBias.cxx.

AliFMDCorrVertexBias::~AliFMDCorrVertexBias ( )

virtual

Destructor

Definition at line 42 of file AliFMDCorrVertexBias.cxx.

Member Function Documentation

void AliFMDCorrVertexBias::Browse ( TBrowser * b )

Browse this object in the browser

Parameters

b

Definition at line 278 of file AliFMDCorrVertexBias.cxx.

Referenced by IsFolder().

Int_t AliFMDCorrVertexBias::FindVertexBin ( Double_t vertex ) const

protected

Find the vertex bin that corresponds to the passed vertex

Parameters

vertex The interaction points \(z\)-coordinate

Returns: Vertex bin in \([1,N_{\mbox{vertex}}]\) or negative if out of range

Definition at line 125 of file AliFMDCorrVertexBias.cxx.

Referenced by GetCorrection(), IsFolder(), and SetCorrection().

TH2D * AliFMDCorrVertexBias::GetCorrection	(	Char_t	r,
		Double_t	v
	)		const

Get the vertex bias correction \( b_{v}\)

Parameters

r	Ring type (I or O)
v	Primary interaction point \(z\) coordinate

Returns: The correction \( b_{v}\)

Definition at line 70 of file AliFMDCorrVertexBias.cxx.

Referenced by CompareVtxBias(), AliFMDCorrector::Correct(), AliFMDMCCorrector::CorrectMC(), and DrawCorrVtxBias().

TH2D * AliFMDCorrVertexBias::GetCorrection	(	Char_t	r,
		UShort_t	b
	)		const

Get the vertex bias correction \( b_{v}\)

Parameters

r	Ring type (I or O)
b	Bin corresponding to the primary interaction point \(z\) coordinate (1 based)

Returns: The correction \( b_{v}\)

Definition at line 88 of file AliFMDCorrVertexBias.cxx.

TObjArray * AliFMDCorrVertexBias::GetOrMakeVertexArray ( UShort_t v )

protected

Get the vertex array corresponding to the specified ring

Parameters

v	vertex bin (1 based)

Returns: Pointer to vertex array, or newly created container

Definition at line 178 of file AliFMDCorrVertexBias.cxx.

Referenced by IsFolder(), and SetCorrection().

TObjArray * AliFMDCorrVertexBias::GetVertexArray ( UShort_t v ) const

protected

Get the vertex array corresponding to the specified ring

Parameters

v	vertex bin (1 based)

Returns: Pointer to vertex array, or null in case of problems

Definition at line 151 of file AliFMDCorrVertexBias.cxx.

Referenced by GetCorrection(), and IsFolder().

const TAxis& AliFMDCorrVertexBias::GetVertexAxis ( ) const

inline

Get the vertex axis used

Returns: vertex axis

Definition at line 99 of file AliFMDCorrVertexBias.h.

Referenced by CompareVtxBias(), and DrawCorrVtxBias().

Bool_t AliFMDCorrVertexBias::IsFolder ( ) const

inline

Declare this as a folder

Returns: Always true

Definition at line 154 of file AliFMDCorrVertexBias.h.

AliFMDCorrVertexBias & AliFMDCorrVertexBias::operator= ( const AliFMDCorrVertexBias & o )

Assignment operator

Parameters

o	Object to assign from

Returns: Reference to this object

Definition at line 52 of file AliFMDCorrVertexBias.cxx.

void AliFMDCorrVertexBias::Print ( Option_t * option = "R" ) const

Print this object

Parameters

option

Definition at line 291 of file AliFMDCorrVertexBias.cxx.

Referenced by IsFolder().

Bool_t AliFMDCorrVertexBias::SetCorrection	(	Char_t	r,
		Double_t	v,
		TH2D *	h
	)

Set the vertex bias correction \( b_{v}(\eta,\varphi)\). Note, that the object takes ownership of the passed pointer.

Parameters

r	Ring type (I or O)
v	Primary interaction point \(z\) coordinate
h	\( b_{v}(\eta,\varphi)\)

Returns: true if operation succeeded

Definition at line 254 of file AliFMDCorrVertexBias.cxx.

Referenced by GetVertexAxis().

Bool_t AliFMDCorrVertexBias::SetCorrection	(	Char_t	r,
		UShort_t	b,
		TH2D *	h
	)

Set the vertex bias correction \( b_{v}(\eta,\varphi)\) Note, that the object takes ownership of the passed pointer.

Parameters

r	Ring type (I or O)
b	Bin corresponding to the primary interaction point \(z\) coordinate (1 based)
h	\( b_{v}(\eta,\varphi)\)

Returns: true if operation succeeded

Definition at line 209 of file AliFMDCorrVertexBias.cxx.

void AliFMDCorrVertexBias::SetVertexAxis ( const TAxis & axis )

inline

Set the vertex axis to use

Parameters

axis	Vertex axis

Definition at line 208 of file AliFMDCorrVertexBias.h.

Referenced by GetVertexAxis(), and operator=().

void AliFMDCorrVertexBias::SetVertexAxis	(	Int_t	nBins,
		Double_t	min,
		Double_t	max
	)

inline

Set the vertex axis to use

Parameters

nBins	Number of bins
min	Minimum
max	Maximum

Definition at line 202 of file AliFMDCorrVertexBias.h.

Member Data Documentation

TObjArray AliFMDCorrVertexBias::fVertexArray

protected

Definition at line 195 of file AliFMDCorrVertexBias.h.

Referenced by AliFMDCorrVertexBias(), Browse(), GetOrMakeVertexArray(), GetVertexArray(), operator=(), Print(), and ~AliFMDCorrVertexBias().

TAxis AliFMDCorrVertexBias::fVertexAxis

protected

Definition at line 196 of file AliFMDCorrVertexBias.h.

Referenced by AliFMDCorrVertexBias(), Browse(), FindVertexBin(), GetOrMakeVertexArray(), GetVertexArray(), GetVertexAxis(), operator=(), Print(), SetCorrection(), and SetVertexAxis().

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

PWGLF/FORWARD/analysis2/AliFMDCorrVertexBias.h
PWGLF/FORWARD/analysis2/AliFMDCorrVertexBias.cxx

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation