Class for defining a histogram-based background Dalitz plot model. More...

#include <LauBkgndDPModel.hh>

Inheritance diagram for LauBkgndDPModel:

Public Member Functions
	LauBkgndDPModel (LauDaughters daughters, LauVetoes vetoes)
	Constructor. More...

virtual	~LauBkgndDPModel ()
	Destructor.

void	setBkgndHisto (const TH2 *histo, Bool_t useInterpolation, Bool_t fluctuateBins, Bool_t useUpperHalfOnly, Bool_t squareDP=kFALSE)
	Set background histogram. More...

void	setBkgndSpline (const TH2 *histo, Bool_t fluctuateBins, Bool_t useUpperHalfOnly, Bool_t squareDP)
	Set the background histogram and generate a spline. More...

virtual void	initialise ()
	Initialise the model.

virtual Bool_t	generate ()
	Generate a toy MC event from the model. More...

virtual Double_t	getLikelihood (const Double_t m13Sq, const Double_t m23Sq)
	Get likelihood for a given DP position. More...

virtual Double_t	getUnNormValue (const Double_t m13Sq, const Double_t m23Sq)
	Get unnormalised likelihood for a given DP position. More...

virtual Double_t	getLikelihood (UInt_t iEvt)
	Get likelihood for a given event. More...

virtual Double_t	getUnNormValue (UInt_t iEvt)
	Get unnormalised likelihood for a given event. More...

virtual Double_t	getPdfNorm () const
	Get PDF normalisation constant. More...

virtual void	fillDataTree (const LauFitDataTree &fitDataTree)
	Cache the input data and (if appropriate) the per-event likelihood values. More...

Public Member Functions inherited from LauAbsBkgndDPModel
virtual	~LauAbsBkgndDPModel ()
	Destructor.

const LauDaughters *	getDaughters () const
	Get the daughter particles. More...

LauDaughters *	getDaughters ()
	Get the daughter particles. More...

const LauKinematics *	getKinematics () const
	Get the Dalitz plot kinematics. More...

LauKinematics *	getKinematics ()
	Get the Dalitz plot kinematics. More...

const LauVetoes *	getVetoes () const
	Get vetoes in the Dalitz plot. More...

LauVetoes *	getVetoes ()
	Get vetoes in the Dalitz plot. More...

Protected Member Functions
Double_t	calcHistValue (Double_t xVal, Double_t yVal)
	Calulate histogram value at a given point. More...

virtual void	setDataEventNo (UInt_t iEvt)
	Set data event number. More...

Protected Member Functions inherited from LauAbsBkgndDPModel
	LauAbsBkgndDPModel (LauDaughters daughters, LauVetoes vetoes)
	Constructor. More...

Private Member Functions
	LauBkgndDPModel (const LauBkgndDPModel &rhs)
	Copy constructor (not implemented)

LauBkgndDPModel &	operator= (const LauBkgndDPModel &rhs)
	Copy assignment operator (not implemented)

Private Attributes
Bool_t	symmetricalDP_
	Flags whether the DP is symmetrical or not.

Bool_t	squareDP_
	Flags whether or not to work in square DP coordinates.

Lau2DAbsDPPdf *	bgHistDPPdf_
	PDF of Dalitz plot background, from a 2D histogram.

std::vector< Double_t >	bgData_
	Cached histogram values for each event.

Double_t	curEvtHistVal_
	Histogram value for the current event.

Double_t	maxPdfHeight_
	Maximum height of PDF.

Double_t	pdfNorm_
	Normalisation of PDF.

Bool_t	doneGenWarning_
	Boolean to indicate if the warning that there is no histogram has already been issued.

Bool_t	lowBinWarningIssued_
	Flag to track whether a warning has been issued for bin values less than zero.

Detailed Description

Class for defining a histogram-based background Dalitz plot model.

Class for defining a histogram-based background Dalitz plot model

Definition at line 48 of file LauBkgndDPModel.hh.

Constructor & Destructor Documentation

◆ LauBkgndDPModel()

LauBkgndDPModel::LauBkgndDPModel	(	LauDaughters *	daughters,
		LauVetoes *	vetoes
	)

Constructor.

Parameters

[in]	daughters	the daughters in the decay
[in]	vetoes	the vetoes in the Datliz plot

Definition at line 45 of file LauBkgndDPModel.cc.

Member Function Documentation

◆ calcHistValue()

Double_t LauBkgndDPModel::calcHistValue	(	Double_t	xVal,
		Double_t	yVal
	)

protected

Calulate histogram value at a given point.

Parameters

[in]	xVal	the x-value
[in]	yVal	the y-value

Returns: the histogram value

Definition at line 131 of file LauBkgndDPModel.cc.

◆ fillDataTree()

void LauBkgndDPModel::fillDataTree ( const LauFitDataTree & fitDataTree )

virtual

Cache the input data and (if appropriate) the per-event likelihood values.

Parameters

[in] fitDataTree the input data

Implements LauAbsBkgndDPModel.

Definition at line 266 of file LauBkgndDPModel.cc.

◆ generate()

Bool_t LauBkgndDPModel::generate ( )

virtual

Generate a toy MC event from the model.

Returns: success/failure flag

Implements LauAbsBkgndDPModel.

Definition at line 180 of file LauBkgndDPModel.cc.

◆ getLikelihood() [1/2]

Double_t LauBkgndDPModel::getLikelihood	(	const Double_t	m13Sq,
		const Double_t	m23Sq
	)

virtual

Get likelihood for a given DP position.

Parameters

[in]	m13Sq	the invariant mass squared of children 1 and 3
[in]	m23Sq	the invariant mass squared of children 2 and 3

Returns: the likelihood value

Implements LauAbsBkgndDPModel.

Definition at line 315 of file LauBkgndDPModel.cc.

◆ getLikelihood() [2/2]

Double_t LauBkgndDPModel::getLikelihood ( UInt_t iEvt )

virtual

Get likelihood for a given event.

Parameters

[in] iEvt the event number

Returns: the likelihood value

Implements LauAbsBkgndDPModel.

Definition at line 328 of file LauBkgndDPModel.cc.

◆ getPdfNorm()

virtual Double_t LauBkgndDPModel::getPdfNorm ( ) const

inlinevirtual

Get PDF normalisation constant.

Returns: the PDF normalisation constant

Implements LauAbsBkgndDPModel.

Definition at line 134 of file LauBkgndDPModel.hh.

◆ getUnNormValue() [1/2]

Double_t LauBkgndDPModel::getUnNormValue	(	const Double_t	m13Sq,
		const Double_t	m23Sq
	)

virtual

Get unnormalised likelihood for a given DP position.

Parameters

[in]	m13Sq	the invariant mass squared of children 1 and 3
[in]	m23Sq	the invariant mass squared of children 2 and 3

Returns: the unnormalised likelihood value

Implements LauAbsBkgndDPModel.

Definition at line 298 of file LauBkgndDPModel.cc.

◆ getUnNormValue() [2/2]

Double_t LauBkgndDPModel::getUnNormValue ( UInt_t iEvt )

virtual

Get unnormalised likelihood for a given event.

Parameters

[in] iEvt the event number

Returns: the unnormalised likelihood value

Implements LauAbsBkgndDPModel.

Definition at line 321 of file LauBkgndDPModel.cc.

◆ setBkgndHisto()

void LauBkgndDPModel::setBkgndHisto	(	const TH2 *	histo,
		Bool_t	useInterpolation,
		Bool_t	fluctuateBins,
		Bool_t	useUpperHalfOnly,
		Bool_t	squareDP = `kFALSE`
	)

Set background histogram.

Parameters

[in]	histo	the 2D histogram describing the DP distribution
[in]	useInterpolation	boolean flag to determine whether 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. The seed for the random number generator used to fluctuate the bins should first be set using LauRandom::setSeed.
[in]	useUpperHalfOnly	boolean flag to specify that the supplied histogram contains only the upper half of a symmetric DP (or lower half if using square DP coordinates)
[in]	squareDP	boolean flag to determine whether the supplied histogram is given in square DP coordinates

Definition at line 69 of file LauBkgndDPModel.cc.

◆ setBkgndSpline()

void LauBkgndDPModel::setBkgndSpline	(	const TH2 *	histo,
		Bool_t	fluctuateBins,
		Bool_t	useUpperHalfOnly,
		Bool_t	squareDP
	)

Set the background histogram and generate a spline.

Parameters

[in]	histo	the 2D histogram describing the DP distribution
[in]	fluctuateBins	boolean flag to determine whether the bin contents should be fluctuated in accordance with their errors. The seed for the random number generator used to fluctuate the bins should first be set using LauRandom::setSeed.
[in]	useUpperHalfOnly	boolean flag to specify that the supplied histogram contains only the upper half of a symmetric DP (or lower half if using square DP coordinates)
[in]	squareDP	boolean flag to determine whether the supplied histogram is given in square DP coordinates

Definition at line 103 of file LauBkgndDPModel.cc.

◆ setDataEventNo()

void LauBkgndDPModel::setDataEventNo ( UInt_t iEvt )

protectedvirtual

Set data event number.

Parameters

[in] iEvt the event number

Implements LauAbsBkgndDPModel.

Definition at line 336 of file LauBkgndDPModel.cc.

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

/home/epp/phsdba/Development/Laura++/master-dev/laura/inc/LauBkgndDPModel.hh
/home/epp/phsdba/Development/Laura++/master-dev/laura/src/LauBkgndDPModel.cc

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ LauBkgndDPModel()

Member Function Documentation

◆ calcHistValue()

◆ fillDataTree()

◆ generate()

◆ getLikelihood() [1/2]

◆ getLikelihood() [2/2]

◆ getPdfNorm()

◆ getUnNormValue() [1/2]

◆ getUnNormValue() [2/2]

◆ setBkgndHisto()

◆ setBkgndSpline()

◆ setDataEventNo()