LauEffModel Class Reference

Class that implements the efficiency description across the signal Dalitz plot. More...

#include <LauEffModel.hh>

Public Member Functions
	LauEffModel (const LauDaughters *daughters, const LauVetoes *vetoes)
	Constructor. More...
virtual	~LauEffModel ()
	Destructor. More...
	LauEffModel (const LauEffModel &rhs)
	Copy constructor. More...
void	setEffHisto (const TH2 *effHisto, Bool_t useInterpolation=kTRUE, Bool_t fluctuateBins=kFALSE, Double_t avEff=-1.0, Double_t absError=-1.0, Bool_t useUpperHalfOnly=kFALSE, Bool_t squareDP=kFALSE)
	Set the efficiency variation across the phase space using a predetermined 2D histogram. More...
Double_t	calcEfficiency (const LauKinematics *kinematics) const
	Determine the efficiency for a given point in the Dalitz plot. More...
Bool_t	passVeto (const LauKinematics *kinematics) const
	Determine whether the given DP position is outside the vetoes. More...
Bool_t	fluctuateEffHisto () const
	Determine whether the efficiency histogram has had its bins fluctuated within their errors. More...

Private Member Functions
Double_t	getEffHistValue (Double_t xVal, Double_t yVal) const
	Get the efficiency from a two-dimensional histogram by interpolating in x and y. More...

Private Attributes
const LauDaughters *	daughters_
	The daughters object. More...
const LauVetoes *	vetoes_
	The vetoes object. More...
Lau2DHistDP *	effHisto_
	The efficiency histogram object. More...
Bool_t	squareDP_
	Use of the square Dalitz plot. More...
Bool_t	fluctuateEffHisto_
	Fluctuate histogram within the error. More...

Detailed Description

Class that implements the efficiency description across the signal Dalitz plot.

Class that defines the efficiency model variation across the signal Dalitz plot. The method is based in a predetermined two-dimensional histogram to characterize the phase space acceptance. The efficiency variation is defined in terms of x = m_13^2, y = m_23^2 for the Dalitz plot (default) or x = m', y = theta' for the square Dalitz plot

Definition at line 37 of file LauEffModel.hh.

Constructor & Destructor Documentation

LauEffModel::LauEffModel	(	const LauDaughters *	daughters,
		const LauVetoes *	vetoes
	)

Constructor.

Parameters

[in]	daughters	the daughters particles of the Dalitz plot model
[in]	vetoes	the object describing the vetoes applied in the phase space

Definition at line 31 of file LauEffModel.cc.

LauEffModel::~LauEffModel ( )

virtual

Destructor.

Definition at line 53 of file LauEffModel.cc.

LauEffModel::LauEffModel

(

const LauEffModel &

rhs

)

Copy constructor.

Parameters

[in]

rhs

the LauEffModel to be copied

Definition at line 44 of file LauEffModel.cc.

Member Function Documentation

Double_t LauEffModel::calcEfficiency

(

const LauKinematics *

kinematics

)

const

Determine the efficiency for a given point in the Dalitz plot.

The method uses the 2D histogram set by the setEffHisto() function and the vetoes information.

Parameters

[in]

kinematics

the object that defines the DP position

Returns

the efficiency value at the given point in the DP

Definition at line 95 of file LauEffModel.cc.

Bool_t LauEffModel::fluctuateEffHisto ( ) const

inline

Determine whether the efficiency histogram has had its bins fluctuated within their errors.

Definition at line 90 of file LauEffModel.hh.

Double_t LauEffModel::getEffHistValue ( Double_t  xVal, Double_t  yVal  ) const

private

Get the efficiency from a two-dimensional histogram by interpolating in x and y.

Parameters

[in]	xVal	the value to be interpolated in x
[in]	yVal	the value to be interpolated in y

Definition at line 83 of file LauEffModel.cc.

Bool_t LauEffModel::passVeto

(

const LauKinematics *

kinematics

)

const

Determine whether the given DP position is outside the vetoes.

Parameters

[in]

kinematics

the object that defines the DP position

Returns

kTRUE if the DP position is outside all veto regions, kFALSE otherwise

Definition at line 134 of file LauEffModel.cc.

void LauEffModel::setEffHisto	(	const TH2 *	effHisto,
		Bool_t	useInterpolation = kTRUE,
		Bool_t	fluctuateBins = kFALSE,
		Double_t	avEff = -1.0,
		Double_t	absError = -1.0,
		Bool_t	useUpperHalfOnly = kFALSE,
		Bool_t	squareDP = kFALSE
	)

Set the efficiency variation across the phase space using a predetermined 2D histogram.

The efficiency is defined in terms of x = m_13^2, y = m_23^2 or x = m', y = theta' for the square Dalitz plot

Parameters

[in]	effHisto	the 2-dimensional histogram that describes the efficiency variation
[in]	useInterpolation	boolean flag decision to switch on/off linear interpolation between bins should be used or simply the raw bin values.
[in]	fluctuateBins	boolean flag to determine whether the bin contents should be fluctuated in accordance with their errors.
[in]	avEff	the desired average efficiency - see Lau2DHistDP::raiseOrLowerBins, values less than zero switch off this behaviour
[in]	absError	the error on that efficiency - see Lau2DHistDP::raiseOrLowerBins, values less than zero switch off this behaviour
[in]	useUpperHalfOnly	boolean flag to determine whether, in the case of a symmetric DP, the histogram supplied only includes the upper half of the DP.
[in]	squareDP	boolean flag to determine whether the supplied histogram is given in square DP coordinates

Definition at line 60 of file LauEffModel.cc.

Member Data Documentation

const LauDaughters* LauEffModel::daughters_

private

The daughters object.

Definition at line 101 of file LauEffModel.hh.

Lau2DHistDP* LauEffModel::effHisto_

private

The efficiency histogram object.

Definition at line 107 of file LauEffModel.hh.

Bool_t LauEffModel::fluctuateEffHisto_

private

Fluctuate histogram within the error.

Definition at line 112 of file LauEffModel.hh.

Bool_t LauEffModel::squareDP_

private

Use of the square Dalitz plot.

Definition at line 110 of file LauEffModel.hh.

const LauVetoes* LauEffModel::vetoes_

private

The vetoes object.

Definition at line 104 of file LauEffModel.hh.

---

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

• inc/LauEffModel.hh
• src/LauEffModel.cc