Class for defining the Belle nonresonant model. More...

#include <LauBelleNR.hh>

Inheritance diagram for LauBelleNR:

Public Member Functions
	LauBelleNR (LauResonanceInfo resInfo, const LauAbsResonance::LauResonanceModel resType, const Int_t resPairAmpInt, const LauDaughters daughters)
	Constructor. More...

virtual	~LauBelleNR ()
	Destructor. More...

void	enforceLegendreSpinFactors (const Bool_t forceLegendre)
	Override the enforcement of pure Legendre polynomial spin factors. More...

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

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

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...

LauSpinType	getSpinType () const
	Get the spin type. 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...

virtual Bool_t	preSymmetrised () const
	Is the amplitude pre-symmetrised? 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 momenta flag. More...

Bool_t	ignoreSpin () const
	Get the ignore spin flag. More...

void	ignoreSpin (const Bool_t boolean)
	Set the ignore spin flag. More...

Bool_t	ignoreBarrierScaling () const
	Get the ignore barrier factor scaling flag. More...

void	ignoreBarrierScaling (const Bool_t boolean)
	Set the ignore barrier factor scaling 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...

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	setSpinType (const LauSpinType spinType)
	Set the spin formalism to be used. 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
void	setAlpha (const Double_t alpha)
	Set the parameter alpha, the effective range. More...

Double_t	getAlpha () const
	Get the effective range parameter. More...

Bool_t	fixAlpha () const
	See if the alpha parameter is fixed or floating. More...

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...

Double_t	getCovFactor () const
	Get the current value of the full spin-dependent covariant factor. 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...

Double_t	calcZemachSpinFactor (const Double_t pProd) const
	Calculate the amplitude spin term using the Zemach tensor formalism. More...

Double_t	calcCovSpinFactor (const Double_t pProd)
	Calculate the amplitude spin term using the covariant tensor formalism. More...

void	calcCovFactor (const Double_t erm)
	Calculate the spin-dependent covariant factor. More...

Double_t	calcLegendrePoly () const
	Calculate the Legendre polynomial for the spin factor. More...

Double_t	calcLegendrePoly (const Double_t cosHel)
	Calculate the Legendre polynomial for the spin factor (specifying the cosHel value) 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 Member Functions
	LauBelleNR (const LauBelleNR &rhs)
	Copy constructor (not implemented) More...

LauBelleNR &	operator= (const LauBelleNR &rhs)
	Copy assignment operator (not implemented) More...

Private Attributes
LauParameter *	alpha_
	The range parameter. More...

LauAbsResonance::LauResonanceModel	model_
	The model to use. More...

Bool_t	forceLegendre_
	Force use of Legendre spin factors. More...

Additional Inherited Members
Public Types inherited from LauAbsResonance
enum	LauResonanceModel { BW, RelBW, GS, Flatte, Sigma, Kappa, Dabba, LASS, LASS_BW, LASS_NR, EFKLLM, KMatrix, FlatNR, NRModel, BelleNR, PowerLawNR, BelleSymNR, BelleSymNRNoInter, TaylorNR, PolNR, MIPW_MagPhase, MIPW_RealImag, GaussIncoh, RhoOmegaMix_GS, RhoOmegaMix_RBW, RhoOmegaMix_GS_1, RhoOmegaMix_RBW_1 }
	Define the allowed resonance types. More...

enum	LauSpinType { Zemach_P, Zemach_Pstar, Covariant, Legendre }
	Define the allowed spin formalisms. More...

Static Public Member Functions inherited from LauAbsResonance
static bool	isIncoherentModel (LauResonanceModel model)
	Is the resonance model incoherent? More...

Detailed Description

Class for defining the Belle nonresonant model.

Defines the nonresonant model from the Belle collaboration. arXiv:hep-ex/0412066

Definition at line 34 of file LauBelleNR.hh.

Constructor & Destructor Documentation

LauBelleNR::LauBelleNR	(	LauResonanceInfo *	resInfo,
		const LauAbsResonance::LauResonanceModel	resType,
		const Int_t	resPairAmpInt,
		const LauDaughters *	daughters
	)

Constructor.

Parameters

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

Definition at line 27 of file LauBelleNR.cc.

LauBelleNR::~LauBelleNR ( )

virtual

Destructor.

Definition at line 44 of file LauBelleNR.cc.

LauBelleNR::LauBelleNR ( const LauBelleNR & rhs )

private

Copy constructor (not implemented)

Member Function Documentation

void LauBelleNR::enforceLegendreSpinFactors ( const Bool_t forceLegendre )

inline

Override the enforcement of pure Legendre polynomial spin factors.

By default this model uses pure Legendre polynomial spin factors, regardless of the default type set in LauResonanceMaker or any specific request from the user. This function allows the enforcement to be overridden.

Parameters

[in] forceLegendre boolean flag (kTRUE, the default, implies enforcement of pure Legendre spin factors, kFALSE overrides this to allow use of other formalisms)

Definition at line 59 of file LauBelleNR.hh.

Bool_t LauBelleNR::fixAlpha ( ) const

inlineprotected

See if the alpha parameter is fixed or floating.

Returns: kTRUE if the effective range parameter is fixed, kFALSE otherwise

Definition at line 113 of file LauBelleNR.hh.

void LauBelleNR::floatResonanceParameter ( const TString & name )

virtual

Allow the various parameters to float in the fit.

Parameters

[in] name the name of the parameter to be floated

Reimplemented from LauAbsResonance.

Definition at line 106 of file LauBelleNR.cc.

Double_t LauBelleNR::getAlpha ( ) const

inlineprotected

Get the effective range parameter.

Returns: the effective range parameter

Definition at line 107 of file LauBelleNR.hh.

const std::vector< LauParameter * > & LauBelleNR::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 84 of file LauBelleNR.cc.

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

inlinevirtual

Get the resonance model type.

Returns: the resonance model type

Implements LauAbsResonance.

Definition at line 68 of file LauBelleNR.hh.

LauParameter * LauBelleNR::getResonanceParameter ( const TString & name )

virtual

Access the given resonance parameter.

Parameters

[in] name the name of the parameter

Returns: the corresponding parameter

Reimplemented from LauAbsResonance.

Definition at line 120 of file LauBelleNR.cc.

void LauBelleNR::initialise ( )

virtual

Initialise the model.

Implements LauAbsResonance.

Definition at line 48 of file LauBelleNR.cc.

LauBelleNR& LauBelleNR::operator= ( const LauBelleNR & rhs )

private

Copy assignment operator (not implemented)

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

protectedvirtual

Complex resonant amplitude.

Parameters

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

Implements LauAbsResonance.

Definition at line 67 of file LauBelleNR.cc.

void LauBelleNR::setAlpha ( const Double_t alpha )

protected

Set the parameter alpha, the effective range.

Parameters

[in] alpha the new effective range parameter value

Definition at line 130 of file LauBelleNR.cc.

void LauBelleNR::setResonanceParameter	(	const TString &	name,
		const Double_t	value
	)

virtual

Set value of the various parameters.

Parameters

[in]	name	the name of the parameter to be changed
[in]	value	the new parameter value

Reimplemented from LauAbsResonance.

Definition at line 95 of file LauBelleNR.cc.

Member Data Documentation

LauParameter* LauBelleNR::alpha_

private

The range parameter.

Definition at line 130 of file LauBelleNR.hh.

Bool_t LauBelleNR::forceLegendre_

private

Force use of Legendre spin factors.

Definition at line 136 of file LauBelleNR.hh.

LauAbsResonance::LauResonanceModel LauBelleNR::model_

private

The model to use.

Definition at line 133 of file LauBelleNR.hh.

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

inc/LauBelleNR.hh
src/LauBelleNR.cc

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation