Class for defining a model independent partial wave component. More...

#include <LauModIndPartWave.hh>

Inheritance diagram for LauModIndPartWave:

Public Member Functions
	LauModIndPartWave (LauResonanceInfo resInfo, Int_t resPairAmpInt, const LauDaughters daughters)
	Constructor. More...

virtual	~LauModIndPartWave ()
	Destructor. More...

virtual void	initialise ()
	Initialise the model. More...

void	addKnot (Double_t mass, Double_t magVal, Double_t phaseVal, Bool_t fixMag=kFALSE, Bool_t fixPhase=kFALSE)
	Add a knot to the magnitude and phase splines. More...

void	setKnotAmp (Int_t knot, Double_t magVal, Double_t phaseVal, Bool_t fixMag, Bool_t fixPhase)
	Set the magnitude and phase at a given knot. More...

virtual LauAbsResonance::LauResonanceModel	getResonanceModel () const
	Get the resonance model type. More...

virtual const std::vector < LauParameter * > &	getFloatingParameters ()
	Retrieve the resonance parameters, e.g. so that they can be loaded into a fit. More...

Public Member Functions inherited from LauAbsResonance
	LauAbsResonance (LauResonanceInfo resInfo, const Int_t resPairAmpInt, const LauDaughters daughters)
	Constructor (for use by standard resonances) More...

	LauAbsResonance (const TString &resName, const Int_t resPairAmpInt, const LauDaughters *daughters)
	Constructor (for use by K-matrix components) More...

virtual	~LauAbsResonance ()
	Destructor. More...

virtual LauComplex	amplitude (const LauKinematics *kinematics)
	Calculate the complex amplitude. More...

const TString &	getResonanceName () const
	Get the name of the resonance. More...

const TString &	getSanitisedName () const
	Get the name of the resonance. More...

Int_t	getPairInt () const
	Get the integer to identify which DP axis the resonance belongs to. More...

Int_t	getSpin () const
	Get the spin of the resonance. More...

Int_t	getCharge () const
	Get the charge of the resonance. More...

Double_t	getMass () const
	Get the mass of the resonance. More...

Double_t	getWidth () const
	Get the width of the resonance. More...

LauParameter *	getMassPar ()
	Get the mass parameter of the resonance. More...

LauParameter *	getWidthPar ()
	Get the width parameter of the resonance. More...

Bool_t	flipHelicity () const
	Get the helicity flip flag. More...

void	flipHelicity (const Bool_t boolean)
	Set the helicity flip flag. More...

Bool_t	ignoreMomenta () const
	Get the ignore momenta flag. More...

void	ignoreMomenta (const Bool_t boolean)
	Set the ignore p_ and q_ flag. More...

void	changeResonance (const Double_t newMass, const Double_t newWidth, const Int_t newSpin)
	Allow the mass, width and spin of the resonance to be changed. More...

void	changeBWBarrierRadii (const Double_t resRadius, const Double_t parRadius)
	Allow the Blatt-Weisskopf radius for the resonance and parent factors to be changed. More...

virtual void	setResonanceParameter (const TString &name, const Double_t value)
	Set value of the various parameters. More...

virtual void	floatResonanceParameter (const TString &name)
	Allow the various parameters to float in the fit. More...

virtual LauParameter *	getResonanceParameter (const TString &name)
	Access the given resonance parameter. More...

void	fixMass (const Bool_t parFixed)
	Fix or release the resonance mass. More...

void	fixWidth (const Bool_t parFixed)
	Fix or release the resonance width. More...

Bool_t	fixMass () const
	Get the status of resonance mass (fixed or released) More...

Bool_t	fixWidth () const
	Get the status of resonance width (fixed or released) More...

void	setBarrierRadii (LauBlattWeisskopfFactor resFactor, LauBlattWeisskopfFactor parFactor)
	Set the form factor model and parameters. More...

void	fixBarrierRadii (const Bool_t fixResRadius, const Bool_t fixParRadius)
	Fix or release the Blatt-Weisskopf barrier radii. More...

Bool_t	fixResRadius () const
	Get the status of resonance barrier radius (fixed or released) More...

Bool_t	fixParRadius () const
	Get the status of parent barrier radius (fixed or released) More...

Double_t	getResRadius () const
	Get the radius of the resonance barrier factor. More...

Double_t	getParRadius () const
	Get the radius of the parent barrier factor. More...

Protected Member Functions
virtual LauComplex	resAmp (Double_t mass, Double_t spinTerm)
	Complex resonant amplitude. More...

Protected Member Functions inherited from LauAbsResonance
TString	getNameParent () const
	Get the name of the parent particle. More...

TString	getNameDaug1 () const
	Get the name of the first daughter of the resonance. More...

TString	getNameDaug2 () const
	Get the name of the second daughter of the resonance. More...

TString	getNameBachelor () const
	Get the name of the daughter that does not originate form the resonance. More...

Double_t	getMassParent () const
	Get the parent particle mass. More...

Double_t	getMassDaug1 () const
	Get the mass of daughter 1. More...

Double_t	getMassDaug2 () const
	Get the mass of daughter 2. More...

Double_t	getMassBachelor () const
	Get the mass of the bachelor daughter. More...

Int_t	getChargeParent () const
	Get the Charge of the parent particle. More...

Int_t	getChargeDaug1 () const
	Get the charge of daughter 1. More...

Int_t	getChargeDaug2 () const
	Get the charge of daughter 2. More...

Int_t	getChargeBachelor () const
	Get the charge of the bachelor daughter. More...

Double_t	getQ () const
	Get the current value of the daughter momentum in the resonance rest frame. More...

Double_t	getP () const
	Get the current value of the bachelor momentum in the resonance rest frame. More...

Double_t	getPstar () const
	Get the current value of the bachelor momentum in the parent rest frame. More...

LauBlattWeisskopfFactor *	getParBWFactor ()
	Get the centrifugal barrier for the parent decay. More...

const LauBlattWeisskopfFactor *	getParBWFactor () const

LauBlattWeisskopfFactor *	getResBWFactor ()
	Get the centrifugal barrier for the resonance decay. More...

const LauBlattWeisskopfFactor *	getResBWFactor () const

LauResonanceInfo *	getResInfo () const
	Access the resonance info object. More...

const LauDaughters *	getDaughters () const
	Access the daughters object. More...

void	clearFloatingParameters ()
	Clear list of floating parameters. More...

void	addFloatingParameter (LauParameter *param)
	Add parameter to the list of floating parameters. More...

std::vector< LauParameter * > &	getParameters ()
	Access the list of floating parameters. More...

Private Attributes
TSpline3 *	magSpline_
	The spline used to calculate the magnitude at a given mass. More...

TSpline3 *	phaseSpline_
	The spline used to calculate the phase at a given mass. More...

Int_t	nKnots_
	The number of knots in the magnitude and phase splines. More...

std::vector< Double_t >	masses_
	The masses at which knots are defined in the magnitude and phase splines. More...

std::vector< Double_t >	magnitudes_
	The values of the magnitude spline at the knots. More...

std::vector< Double_t >	phases_
	The values of the phase spline at the knots. More...

std::vector< LauParameter * >	magnitudePars_
	The parameters for the values at the knots in the magnitude spline. More...

std::vector< LauParameter * >	phasePars_
	The parameters for the values at the knots in the phase spline. More...

Bool_t	initialised_
	Flag to identify whether the model has been intialised yet. More...

Double_t	upperThresholdMag_
	Magnitude for the knot at the upper kinematic threshold. More...

Double_t	upperThresholdPhase_
	Phase for the knot at the upper kinematic threshold. More...

Bool_t	fixUpperThresholdMag_
	Whether the magnitude should be fixed for the knot at the upper kinematic threshold. More...

Bool_t	fixUpperThresholdPhase_
	Whether the phase should be fixed for the knot at the upper kinematic threshold. More...

Additional Inherited Members
Public Types inherited from LauAbsResonance
enum	LauResonanceModel { BW, RelBW, GS, Flatte, Sigma, Kappa, Dabba, LASS, LASS_BW, LASS_NR, KMatrix, FlatNR, NRModel, BelleNR, PowerLawNR, BelleSymNR, TaylorNR, PolNR, MIPW, GaussIncoh }
	Define the allowed resonance types. More...

Detailed Description

Class for defining a model independent partial wave component.

Class for defining a model independent partial wave component. This model uses splines to produce a partial wave from a set of masses and amplitudes. The magnitude and phase at each point can be floated in the fit and the amplitudes at the kinematic limits are fixed to zero.

Definition at line 32 of file LauModIndPartWave.hh.

Constructor & Destructor Documentation

LauModIndPartWave::LauModIndPartWave	(	LauResonanceInfo *	resInfo,
		Int_t	resPairAmpInt,
		const LauDaughters *	daughters
	)

Constructor.

Parameters

[in]	resInfo	the object containing information on the resonance name, mass, width, spin, charge, etc.
[in]	resPairAmpInt	the number of the daughter not produced by the resonance
[in]	daughters	the daughter particles

Definition at line 35 of file LauModIndPartWave.cc.

LauModIndPartWave::~LauModIndPartWave ( )

virtual

Destructor.

Definition at line 47 of file LauModIndPartWave.cc.

Member Function Documentation

void LauModIndPartWave::addKnot	(	Double_t	mass,
		Double_t	magVal,
		Double_t	phaseVal,
		Bool_t	fixMag = `kFALSE`,
		Bool_t	fixPhase = `kFALSE`
	)

Add a knot to the magnitude and phase splines.

Knots must be added in ascending order and two knots cannot be placed at the same mass. Knots are added automatically at the upper and lower kinematic thesholds and can be updated using LauModIndPartWave::setKnotAmp.

Parameters

[in]	mass	the mass at which the knot is placed
[in]	magVal	the value of the magnitude at the knot
[in]	phaseVal	the value of the phase at the knot
[in]	fixMag	whether the magnitude parameter should be fixed at the knot (default is false)
[in]	fixPhase	whether the phase parameter should be fixed at the knot (default is false)

Definition at line 96 of file LauModIndPartWave.cc.

const std::vector< LauParameter * > & LauModIndPartWave::getFloatingParameters ( )

virtual

Retrieve the resonance parameters, e.g. so that they can be loaded into a fit.

Returns: floating parameters of the resonance

Reimplemented from LauAbsResonance.

Definition at line 231 of file LauModIndPartWave.cc.

virtual LauAbsResonance::LauResonanceModel LauModIndPartWave::getResonanceModel ( ) const

inlinevirtual

Get the resonance model type.

Returns: the resonance model type

Implements LauAbsResonance.

Definition at line 76 of file LauModIndPartWave.hh.

void LauModIndPartWave::initialise ( )

virtual

Initialise the model.

Implements LauAbsResonance.

Definition at line 67 of file LauModIndPartWave.cc.

LauComplex LauModIndPartWave::resAmp	(	Double_t	mass,
		Double_t	spinTerm
	)

protectedvirtual

Complex resonant amplitude.

Parameters

[in]	mass	appropriate invariant mass for the resonance
[in]	spinTerm	Zemach spin term

Implements LauAbsResonance.

Definition at line 197 of file LauModIndPartWave.cc.

void LauModIndPartWave::setKnotAmp	(	Int_t	knot,
		Double_t	magVal,
		Double_t	phaseVal,
		Bool_t	fixMag,
		Bool_t	fixPhase
	)

Set the magnitude and phase at a given knot.

The knot at the upper (lower) kinematic threshold can be accessed as knot -1 (0)

Parameters

[in]	knot	the knot to be updated
[in]	magVal	the value of the magnitude at the knot
[in]	phaseVal	the value of the phase at the knot
[in]	fixMag	whether the magnitude parameter should be fixed at the knot
[in]	fixPhase	whether the phase parameter should be fixed at the knot

Definition at line 152 of file LauModIndPartWave.cc.

Member Data Documentation

Bool_t LauModIndPartWave::fixUpperThresholdMag_

private

Whether the magnitude should be fixed for the knot at the upper kinematic threshold.

Definition at line 121 of file LauModIndPartWave.hh.

Bool_t LauModIndPartWave::fixUpperThresholdPhase_

private

Whether the phase should be fixed for the knot at the upper kinematic threshold.

Definition at line 123 of file LauModIndPartWave.hh.

Bool_t LauModIndPartWave::initialised_

private

Flag to identify whether the model has been intialised yet.

Definition at line 114 of file LauModIndPartWave.hh.

std::vector<LauParameter*> LauModIndPartWave::magnitudePars_

private

The parameters for the values at the knots in the magnitude spline.

Definition at line 109 of file LauModIndPartWave.hh.

std::vector<Double_t> LauModIndPartWave::magnitudes_

private

The values of the magnitude spline at the knots.

Definition at line 104 of file LauModIndPartWave.hh.

TSpline3* LauModIndPartWave::magSpline_

private

The spline used to calculate the magnitude at a given mass.

Definition at line 94 of file LauModIndPartWave.hh.

std::vector<Double_t> LauModIndPartWave::masses_

private

The masses at which knots are defined in the magnitude and phase splines.

Definition at line 102 of file LauModIndPartWave.hh.

Int_t LauModIndPartWave::nKnots_

private

The number of knots in the magnitude and phase splines.

Definition at line 99 of file LauModIndPartWave.hh.

std::vector<LauParameter*> LauModIndPartWave::phasePars_

private

The parameters for the values at the knots in the phase spline.

Definition at line 111 of file LauModIndPartWave.hh.

std::vector<Double_t> LauModIndPartWave::phases_

private

The values of the phase spline at the knots.

Definition at line 106 of file LauModIndPartWave.hh.

TSpline3* LauModIndPartWave::phaseSpline_

private

The spline used to calculate the phase at a given mass.

Definition at line 96 of file LauModIndPartWave.hh.

Double_t LauModIndPartWave::upperThresholdMag_

private

Magnitude for the knot at the upper kinematic threshold.

Definition at line 117 of file LauModIndPartWave.hh.

Double_t LauModIndPartWave::upperThresholdPhase_

private

Phase for the knot at the upper kinematic threshold.

Definition at line 119 of file LauModIndPartWave.hh.

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

inc/LauModIndPartWave.hh
src/LauModIndPartWave.cc

Public Member Functions

Protected Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation