Class for defining the NR amplitude model. More...

#include <LauNRAmplitude.hh>

Inheritance diagram for LauNRAmplitude:

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

virtual	~LauNRAmplitude ()
	Destructor. More...

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

virtual LauComplex	amplitude (const LauKinematics *kinematics)
	Complex resonant amplitude. 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 a resonance parameter. 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...

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
virtual LauComplex	resAmp (Double_t mass, Double_t spinTerm)
	This is not meant to be called. More...

Double_t	f (const Double_t s, const Double_t c, const Double_t p) const
	Evaluate the expression 1.0 / (1.0 + TMath::Exp( c * (s-p) )) More...

void	setdParameter (const Double_t d)
	Set the d parameter value. More...

void	setc1Parameter (const Double_t c1)
	Set the c1 parameter value. More...

void	setc2Parameter (const Double_t c2)
	Set the c2 parameter value. More...

void	setp1Parameter (const Double_t p1)
	Set the p1 parameter value. More...

void	setp2Parameter (const Double_t p2)
	Set the p2 parameter value. More...

Double_t	getdParameter () const
	Get the d parameter value. More...

Double_t	getc1Parameter () const
	Get the c1 parameter value. More...

Double_t	getc2Parameter () const
	Get the c2 parameter value. More...

Double_t	getp1Parameter () const
	Get the p1 parameter value. More...

Double_t	getp2Parameter () const
	Get the p2 parameter value. More...

Bool_t	fixdParameter () const
	See if the d parameter is fixed or floating. More...

Bool_t	fixc1Parameter () const
	See if the c1 parameter is fixed or floating. More...

Bool_t	fixc2Parameter () const
	See if the c2 parameter is fixed or floating. More...

Bool_t	fixp1Parameter () const
	See if the p1 parameter is fixed or floating. More...

Bool_t	fixp2Parameter () const
	See if the p2 parameter is fixed or floating. 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
	LauNRAmplitude (const LauNRAmplitude &rhs)
	Copy constructor (not implemented) More...

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

Private Attributes
LauParameter *	d_
	Parameter from arXiv:0709.0075v1 [hep-ph]. More...

LauParameter *	c1_
	Parameter from arXiv:0709.0075v1 [hep-ph]. More...

LauParameter *	c2_
	Parameter from arXiv:0709.0075v1 [hep-ph]. More...

LauParameter *	p1_
	Parameter from arXiv:0709.0075v1 [hep-ph]. More...

LauParameter *	p2_
	Parameter from arXiv:0709.0075v1 [hep-ph]. 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 NR amplitude model.

Class for defining the NR amplitude model. Formulae and data values from arXiv:0709.0075v1 [hep-ph].

Definition at line 33 of file LauNRAmplitude.hh.

Constructor & Destructor Documentation

LauNRAmplitude::LauNRAmplitude	(	LauResonanceInfo *	resInfo,
		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]	resPairAmpInt	the number of the daughter not produced by the resonance
[in]	daughters	the daughter particles

Definition at line 23 of file LauNRAmplitude.cc.

LauNRAmplitude::~LauNRAmplitude ( )

virtual

Destructor.

Definition at line 86 of file LauNRAmplitude.cc.

LauNRAmplitude::LauNRAmplitude ( const LauNRAmplitude & rhs )

private

Copy constructor (not implemented)

Member Function Documentation

LauComplex LauNRAmplitude::amplitude ( const LauKinematics * kinematics )

virtual

Complex resonant amplitude.

/param [in] kinematics kinematic parameters of the parent and daughter particles /return the complex amplitude

Reimplemented from LauAbsResonance.

Definition at line 94 of file LauNRAmplitude.cc.

Double_t LauNRAmplitude::f	(	const Double_t	s,
		const Double_t	c,
		const Double_t	p
	)		const

protected

Evaluate the expression 1.0 / (1.0 + TMath::Exp( c * (s-p) ))

Parameters

[in]	s	invariant mass squared
[in]	c	parameter from arXiv:0709.0075v1 [hep-ph]
[in]	p	parameter from arXiv:0709.0075v1 [hep-ph]

Returns: the value of the expression 1.0 / (1.0 + TMath::Exp( c * (s-p) ))

Definition at line 121 of file LauNRAmplitude.cc.

Bool_t LauNRAmplitude::fixc1Parameter ( ) const

inlineprotected

See if the c1 parameter is fixed or floating.

Returns: kTRUE if the c1 parameter is fixed, kFALSE otherwise

Definition at line 172 of file LauNRAmplitude.hh.

Bool_t LauNRAmplitude::fixc2Parameter ( ) const

inlineprotected

See if the c2 parameter is fixed or floating.

Returns: kTRUE if the c2 parameter is fixed, kFALSE otherwise

Definition at line 178 of file LauNRAmplitude.hh.

Bool_t LauNRAmplitude::fixdParameter ( ) const

inlineprotected

See if the d parameter is fixed or floating.

Returns: kTRUE if the d parameter is fixed, kFALSE otherwise

Definition at line 166 of file LauNRAmplitude.hh.

Bool_t LauNRAmplitude::fixp1Parameter ( ) const

inlineprotected

See if the p1 parameter is fixed or floating.

Returns: kTRUE if the p1 parameter is fixed, kFALSE otherwise

Definition at line 184 of file LauNRAmplitude.hh.

Bool_t LauNRAmplitude::fixp2Parameter ( ) const

inlineprotected

See if the p2 parameter is fixed or floating.

Returns: kTRUE if the p2 parameter is fixed, kFALSE otherwise

Definition at line 190 of file LauNRAmplitude.hh.

void LauNRAmplitude::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 176 of file LauNRAmplitude.cc.

Double_t LauNRAmplitude::getc1Parameter ( ) const

inlineprotected

Get the c1 parameter value.

Returns: the new c1 parameter value

Definition at line 142 of file LauNRAmplitude.hh.

Double_t LauNRAmplitude::getc2Parameter ( ) const

inlineprotected

Get the c2 parameter value.

Returns: the new c2 parameter value

Definition at line 148 of file LauNRAmplitude.hh.

Double_t LauNRAmplitude::getdParameter ( ) const

inlineprotected

Get the d parameter value.

Returns: the new d parameter value

Definition at line 136 of file LauNRAmplitude.hh.

const std::vector< LauParameter * > & LauNRAmplitude::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 126 of file LauNRAmplitude.cc.

Double_t LauNRAmplitude::getp1Parameter ( ) const

inlineprotected

Get the p1 parameter value.

Returns: the new p1 parameter value

Definition at line 154 of file LauNRAmplitude.hh.

Double_t LauNRAmplitude::getp2Parameter ( ) const

inlineprotected

Get the p2 parameter value.

Returns: the new p2 parameter value

Definition at line 160 of file LauNRAmplitude.hh.

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

inlinevirtual

Get the resonance model type.

Returns: the resonance model type

Implements LauAbsResonance.

Definition at line 61 of file LauNRAmplitude.hh.

LauParameter * LauNRAmplitude::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 218 of file LauNRAmplitude.cc.

void LauNRAmplitude::initialise ( )

virtual

Initialise the model.

Implements LauAbsResonance.

Definition at line 90 of file LauNRAmplitude.cc.

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

private

Copy assignment operator (not implemented)

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

protectedvirtual

This is not meant to be called.

Implements LauAbsResonance.

Definition at line 114 of file LauNRAmplitude.cc.

void LauNRAmplitude::setc1Parameter ( const Double_t c1 )

protected

Set the c1 parameter value.

Parameters

[in] c1 the new c1 parameter value

Definition at line 243 of file LauNRAmplitude.cc.

void LauNRAmplitude::setc2Parameter ( const Double_t c2 )

protected

Set the c2 parameter value.

Parameters

[in] c2 the new c2 parameter value

Definition at line 250 of file LauNRAmplitude.cc.

void LauNRAmplitude::setdParameter ( const Double_t d )

protected

Set the d parameter value.

Parameters

[in] d the new d parameter value

Definition at line 236 of file LauNRAmplitude.cc.

void LauNRAmplitude::setp1Parameter ( const Double_t p1 )

protected

Set the p1 parameter value.

Parameters

[in] p1 the new p1 parameter value

Definition at line 257 of file LauNRAmplitude.cc.

void LauNRAmplitude::setp2Parameter ( const Double_t p2 )

protected

Set the p2 parameter value.

Parameters

[in] p2 the new p2 parameter value

Definition at line 264 of file LauNRAmplitude.cc.

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

virtual

Set value of a resonance parameter.

Parameters

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

Reimplemented from LauAbsResonance.

Definition at line 153 of file LauNRAmplitude.cc.