LauAbsResonance Class Reference

Abstract class for defining type for resonance amplitude models (Breit-Wigner, Flatte etc.) More...

#include <LauAbsResonance.hh>

Inheritance diagram for LauAbsResonance:

Public Types
enum	LauResonanceModel {   BW, RelBW, GS, Flatte,   Sigma, Kappa, Dabba, LASS,   LASS_BW, LASS_NR, EFKLLM, KMatrix,   FlatNR, NRModel, BelleNR, PowerLawNR,   BelleSymNR, BelleSymNRNoInter, TaylorNR, PolNR,   Pole, PolarFFNR, PolarFFSymNR, PolarFFSymNRNoInter,   Rescattering, Rescattering2, RescatteringNoInter, 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...

Public Member Functions
	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 void	initialise ()=0
	Initialise the model. More...
virtual LauComplex	amplitude (const LauKinematics *kinematics)
	Calculate the complex amplitude. More...
virtual LauResonanceModel	getResonanceModel () const =0
	Get the resonance model type. 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 const std::vector < LauParameter * > &	getFloatingParameters ()
	Retrieve the resonance parameters, e.g. so that they can be loaded into a fit. 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...
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	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...

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

Protected Member Functions
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...
virtual LauComplex	resAmp (Double_t mass, Double_t spinTerm)=0
	Complex resonant amplitude. 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
	LauAbsResonance (const LauAbsResonance &rhs)
	Copy constructor (not implemented) More...
LauAbsResonance &	operator= (const LauAbsResonance &rhs)
	Copy assignment operator (not implemented) More...

Private Attributes
LauResonanceInfo *	resInfo_
	Information on the resonance. More...
const LauDaughters *	daughters_
	Information on the particles. More...
TString	nameParent_
	Parent name. More...
TString	nameDaug1_
	Daughter 1 name. More...
TString	nameDaug2_
	Daughter 2 name. More...
TString	nameBachelor_
	Bachelor name. More...
Int_t	chargeParent_
	Parent charge. More...
Int_t	chargeDaug1_
	Daughter 1 charge. More...
Int_t	chargeDaug2_
	Daughter 2 charge. More...
Int_t	chargeBachelor_
	Bachelor charge. More...
Double_t	massParent_
	Parent mass. More...
Double_t	massDaug1_
	Daughter 1 mass. More...
Double_t	massDaug2_
	Daughter 2 mass. More...
Double_t	massBachelor_
TString	resName_
	Resonance name. More...
TString	sanitisedName_
	Resonance name with illegal characters removed. More...
LauParameter *	resMass_
	Resonance mass. More...
LauParameter *	resWidth_
	Resonance width. More...
std::vector< LauParameter * >	resParameters_
	All parameters of the resonance. More...
Int_t	resSpin_
	Resonance spin. More...
Int_t	resCharge_
	Resonance charge. More...
Int_t	resPairAmpInt_
	DP axis identifier. More...
LauBlattWeisskopfFactor *	parBWFactor_
	Blatt Weisskopf barrier for parent decay. More...
LauBlattWeisskopfFactor *	resBWFactor_
	Blatt Weisskopf barrier for resonance decay. More...
LauSpinType	spinType_
	Spin formalism. More...
Bool_t	flipHelicity_
	Boolean to flip helicity. More...
Bool_t	ignoreMomenta_
	Boolean to ignore the momentum factors in both the spin factor and the mass-dependent width. More...
Bool_t	ignoreSpin_
	Boolean to set the spinTerm to unity always. More...
Bool_t	ignoreBarrierScaling_
	Boolean to ignore barrier factor scaling in the amplitude numerator, they are still used for the mass-dependent width. More...
Double_t	mass_
	Invariant mass. More...
Double_t	cosHel_
	Helicity angle cosine. More...
Double_t	q_
	Daughter momentum in resonance rest frame. More...
Double_t	p_
	Bachelor momentum in resonance rest frame. More...
Double_t	pstar_
	Bachelor momentum in parent rest frame. More...
Double_t	erm_
	Covariant factor. More...
Double_t	covFactor_
	Covariant factor (full spin-dependent expression) More...

Detailed Description

Abstract class for defining type for resonance amplitude models (Breit-Wigner, Flatte etc.)

Abstract Class for defining the type for all classes used to model resonances in the Dalitz plot, such as Breit-Wigner functions. In addition, some common functionality is implemented, including data such as the mass and width of the desired state.

Definition at line 51 of file LauAbsResonance.hh.

Member Enumeration Documentation

enum LauAbsResonance::LauResonanceModel

Define the allowed resonance types.

Enumerator
BW	simple Breit-Wigner
RelBW	relativistic Breit-Wigner
GS	a modified Breit-Wigner from Gounaris-Sakurai
Flatte	Flatte or coupled-channel Breit-Wigner
Sigma	special shape for the sigma or f_0(600)
Kappa	special shape for the kappa, a low-mass Kpi scalar
Dabba	special shape for the dabba, a low-mass Dpi scalar
LASS	the LASS amplitude to describe the Kpi S-wave
LASS_BW	the resonant part of the LASS amplitude
LASS_NR	the nonresonant part of the LASS amplitude
EFKLLM	a form-factor-based description of the Kpi S-wave
KMatrix	S-wave description using K-matrix and P-vector
FlatNR	a uniform nonresonant amplitude
NRModel	a theoretical model nonresonant amplitude
BelleNR	an empirical exponential nonresonant amplitude
PowerLawNR	an empirical power law nonresonant amplitude
BelleSymNR	an empirical exponential nonresonant amplitude for symmetrised DPs
BelleSymNRNoInter	an empirical exponential nonresonant amplitude for symmetrised DPs without interference
TaylorNR	an empirical Taylor expansion nonresonant amplitude for symmetrised DPs
PolNR	an empirical polynomial nonresonant amplitude
Pole	scalar Pole lineshape
PolarFFNR	Polar Form Factor nonresonant amplitude
PolarFFSymNR	Polar Form Factor nonresonant amplitude for symmetrised DPs
PolarFFSymNRNoInter	Polar Form Factor nonresonant amplitude for symmetrised DPs without interference
Rescattering	KK-PiPi inelastic scattering amplitude
Rescattering2	KK-PiPi inelastic scattering amplitude
RescatteringNoInter	KK-PiPi inelastic scattering amplitude
MIPW_MagPhase	a model independent partial wave - magnitude and phase representation
MIPW_RealImag	a model independent partial wave - real and imaginary part representation
GaussIncoh	an incoherent Gaussian shape
RhoOmegaMix_GS	mass mixing model using GS for res 1 and RBW for res 2
RhoOmegaMix_RBW	mass mixing model using two RBWs
RhoOmegaMix_GS_1	mass mixing model using GS for res 1 and RBW for res 2, with denominator factor = 1
RhoOmegaMix_RBW_1	mass mixing model using two RBWs, with denominator factor = 1

Definition at line 55 of file LauAbsResonance.hh.

enum LauAbsResonance::LauSpinType

Define the allowed spin formalisms.

Enumerator
Zemach_P	Zemach tensor formalism, bachelor momentum in resonance rest frame
Zemach_Pstar	Zemach tensor formalism, bachelor momentum in parent rest frame
Covariant	Covariant tensor formalism
Legendre	Legendre polynomials only

Definition at line 93 of file LauAbsResonance.hh.

Constructor & Destructor Documentation

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

Constructor (for use by standard resonances)

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 85 of file LauAbsResonance.cc.

LauAbsResonance::LauAbsResonance	(	const TString &	resName,
		const Int_t	resPairAmpInt,
		const LauDaughters *	daughters
	)

Constructor (for use by K-matrix components)

Parameters

[in]	resName	the name of the component
[in]	resPairAmpInt	the number of the daughter not produced by the resonance
[in]	daughters	the daughter particles

Definition at line 145 of file LauAbsResonance.cc.

LauAbsResonance::~LauAbsResonance ( )

virtual

Destructor.

Definition at line 197 of file LauAbsResonance.cc.

LauAbsResonance::LauAbsResonance ( const LauAbsResonance &  rhs )

private

Copy constructor (not implemented)

Member Function Documentation

void LauAbsResonance::addFloatingParameter ( LauParameter *  param )

protected

Add parameter to the list of floating parameters.

Parameters

[in]

param

the parameter to be added to the list

Definition at line 447 of file LauAbsResonance.cc.

LauComplex LauAbsResonance::amplitude ( const LauKinematics *  kinematics )

virtual

Calculate the complex amplitude.

Parameters

[in]

kinematics

the kinematic variables of the current event

Returns

the complex amplitude

Reimplemented in LauRhoOmegaMix, LauPolarFormFactorSymNR, LauRescatteringRes, LauKMatrixProdPole, LauKMatrixProdSVP, LauBelleSymNR, LauNRAmplitude, and LauFlatNR.

Definition at line 201 of file LauAbsResonance.cc.

void LauAbsResonance::calcCovFactor ( const Double_t  erm )

protected

Calculate the spin-dependent covariant factor.

Parameters

[in]

erm

E_ij in the parent rest-frame divided by m_ij (equivalent to sqrt(1 + p^2/mParent^2))

Definition at line 291 of file LauAbsResonance.cc.

Double_t LauAbsResonance::calcCovSpinFactor ( const Double_t  pProd )

protected

Calculate the amplitude spin term using the covariant tensor formalism.

Parameters

[in]

pProd

the momentum factor (q * pstar)

Definition at line 310 of file LauAbsResonance.cc.

Double_t LauAbsResonance::calcLegendrePoly ( ) const

protected

Calculate the Legendre polynomial for the spin factor.

Uses the current-event value of cosHel_

Definition at line 364 of file LauAbsResonance.cc.

Double_t LauAbsResonance::calcLegendrePoly ( const Double_t  cosHel )

protected

Calculate the Legendre polynomial for the spin factor (specifying the cosHel value)

Parameters

[in]

cosHel

the cosine of the helicity angle

Definition at line 358 of file LauAbsResonance.cc.

Double_t LauAbsResonance::calcZemachSpinFactor ( const Double_t  pProd ) const

protected

Calculate the amplitude spin term using the Zemach tensor formalism.

Parameters

[in]

pProd

the momentum factor (either q * p or q * pstar)

Definition at line 332 of file LauAbsResonance.cc.

void LauAbsResonance::changeBWBarrierRadii	(	const Double_t	resRadius,
		const Double_t	parRadius
	)

Allow the Blatt-Weisskopf radius for the resonance and parent factors to be changed.

Negative values wil be ignored, so if, for example, you want to only change the parent radius you can provide a negative value for the resonance radius

Parameters

[in]	resRadius	new value of the resonance radius
[in]	parRadius	new value of the parent radius

Definition at line 410 of file LauAbsResonance.cc.

void LauAbsResonance::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.

Negative values wil be ignored, so if, for example, you want to only change the spin you can provide negative values for the mass and width

Parameters

[in]	newMass	new value of the resonance mass
[in]	newWidth	new value of the resonance width
[in]	newSpin	new value of the resonance spin

Definition at line 390 of file LauAbsResonance.cc.

void LauAbsResonance::clearFloatingParameters ( )

inlineprotected

Clear list of floating parameters.

Definition at line 457 of file LauAbsResonance.hh.

void LauAbsResonance::fixBarrierRadii	(	const Bool_t	fixResRadius,
		const Bool_t	fixParRadius
	)

Fix or release the Blatt-Weisskopf barrier radii.

Definition at line 460 of file LauAbsResonance.cc.

void LauAbsResonance::fixMass ( const Bool_t  parFixed )

inline

Fix or release the resonance mass.

Parameters

[in]

parFixed

new status of mass

Definition at line 319 of file LauAbsResonance.hh.

Bool_t LauAbsResonance::fixMass ( ) const

inline

Get the status of resonance mass (fixed or released)

Returns

the status of resonance mass (fixed or released)

Definition at line 331 of file LauAbsResonance.hh.

Bool_t LauAbsResonance::fixParRadius

(

)

const

Get the status of parent barrier radius (fixed or released)

Definition at line 490 of file LauAbsResonance.cc.

Bool_t LauAbsResonance::fixResRadius

(

)

const

Get the status of resonance barrier radius (fixed or released)

Definition at line 479 of file LauAbsResonance.cc.

void LauAbsResonance::fixWidth ( const Bool_t  parFixed )

inline

Fix or release the resonance width.

Parameters

[in]

parFixed

new status of width

Definition at line 325 of file LauAbsResonance.hh.

Bool_t LauAbsResonance::fixWidth ( ) const

inline

Get the status of resonance width (fixed or released)

Returns

the status of resonance width (fixed or released)

Definition at line 337 of file LauAbsResonance.hh.

Bool_t LauAbsResonance::flipHelicity ( ) const

inline

Get the helicity flip flag.

Returns

the flip helicity flag

Definition at line 220 of file LauAbsResonance.hh.

void LauAbsResonance::flipHelicity ( const Bool_t  boolean )

inline

Set the helicity flip flag.

Parameters

[in]

boolean

the helicity flip status

Definition at line 226 of file LauAbsResonance.hh.

void LauAbsResonance::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 in LauRhoOmegaMix, LauBelleSymNR, LauBelleNR, LauRescatteringRes, LauEFKLLMRes, LauPolarFormFactorSymNR, LauLASSNRRes, LauLASSRes, LauNRAmplitude, LauPolarFormFactorNR, LauRescattering2Res, LauKappaRes, LauDabbaRes, LauFlatteRes, LauLASSBWRes, and LauSigmaRes.

Definition at line 434 of file LauAbsResonance.cc.

Int_t LauAbsResonance::getCharge ( ) const

inline

Get the charge of the resonance.

Returns

the resonance charge

Definition at line 176 of file LauAbsResonance.hh.

Int_t LauAbsResonance::getChargeBachelor ( ) const

protected

Get the charge of the bachelor daughter.

Definition at line 637 of file LauAbsResonance.cc.

Int_t LauAbsResonance::getChargeDaug1 ( ) const

protected

Get the charge of daughter 1.

Definition at line 601 of file LauAbsResonance.cc.

Int_t LauAbsResonance::getChargeDaug2 ( ) const

protected

Get the charge of daughter 2.

Definition at line 619 of file LauAbsResonance.cc.

Int_t LauAbsResonance::getChargeParent ( ) const

protected

Get the Charge of the parent particle.

Definition at line 589 of file LauAbsResonance.cc.

Double_t LauAbsResonance::getCovFactor ( ) const

inlineprotected

Get the current value of the full spin-dependent covariant factor.

Definition at line 404 of file LauAbsResonance.hh.

const LauDaughters* LauAbsResonance::getDaughters ( ) const

inlineprotected

Access the daughters object.

Definition at line 417 of file LauAbsResonance.hh.

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

inlinevirtual

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

Returns

floating parameters of the resonance

Reimplemented in LauRhoOmegaMix, LauAbsModIndPartWave, LauBelleSymNR, LauBelleNR, LauRescatteringRes, LauEFKLLMRes, LauPolarFormFactorSymNR, LauLASSNRRes, LauLASSRes, LauNRAmplitude, LauPolarFormFactorNR, LauRescattering2Res, LauKappaRes, LauDabbaRes, LauFlatteRes, LauLASSBWRes, LauSigmaRes, LauGaussIncohRes, LauPoleRes, LauBreitWignerRes, LauGounarisSakuraiRes, and LauRelBreitWignerRes.

Definition at line 206 of file LauAbsResonance.hh.

Double_t LauAbsResonance::getMass ( ) const

inline

Get the mass of the resonance.

Returns

the resonance mass

Definition at line 182 of file LauAbsResonance.hh.

Double_t LauAbsResonance::getMassBachelor ( ) const

protected

Get the mass of the bachelor daughter.

Definition at line 571 of file LauAbsResonance.cc.

Double_t LauAbsResonance::getMassDaug1 ( ) const

protected

Get the mass of daughter 1.

Definition at line 535 of file LauAbsResonance.cc.

Double_t LauAbsResonance::getMassDaug2 ( ) const

protected

Get the mass of daughter 2.

Definition at line 553 of file LauAbsResonance.cc.

LauParameter* LauAbsResonance::getMassPar ( )

inline

Get the mass parameter of the resonance.

Returns

the resonance mass parameter

Definition at line 194 of file LauAbsResonance.hh.

Double_t LauAbsResonance::getMassParent ( ) const

protected

Get the parent particle mass.

Definition at line 523 of file LauAbsResonance.cc.

TString LauAbsResonance::getNameBachelor ( ) const

protected

Get the name of the daughter that does not originate form the resonance.

Definition at line 703 of file LauAbsResonance.cc.

TString LauAbsResonance::getNameDaug1 ( ) const

protected

Get the name of the first daughter of the resonance.

Definition at line 667 of file LauAbsResonance.cc.

TString LauAbsResonance::getNameDaug2 ( ) const

protected

Get the name of the second daughter of the resonance.

Definition at line 685 of file LauAbsResonance.cc.

TString LauAbsResonance::getNameParent ( ) const

protected

Get the name of the parent particle.

Definition at line 655 of file LauAbsResonance.cc.

Double_t LauAbsResonance::getP ( ) const

inlineprotected

Get the current value of the bachelor momentum in the resonance rest frame.

Definition at line 400 of file LauAbsResonance.hh.

Int_t LauAbsResonance::getPairInt ( ) const

inline

Get the integer to identify which DP axis the resonance belongs to.

Returns

the DP axis identification number, the ID of the bachelor

Definition at line 164 of file LauAbsResonance.hh.

std::vector<LauParameter*>& LauAbsResonance::getParameters ( )

inlineprotected

Access the list of floating parameters.

Definition at line 466 of file LauAbsResonance.hh.

LauBlattWeisskopfFactor* LauAbsResonance::getParBWFactor ( )

inlineprotected

Get the centrifugal barrier for the parent decay.

Definition at line 407 of file LauAbsResonance.hh.

const LauBlattWeisskopfFactor* LauAbsResonance::getParBWFactor ( ) const

inlineprotected

Definition at line 408 of file LauAbsResonance.hh.

Double_t LauAbsResonance::getParRadius

(

)

const

Get the radius of the parent barrier factor.

Definition at line 512 of file LauAbsResonance.cc.

Double_t LauAbsResonance::getPstar ( ) const

inlineprotected

Get the current value of the bachelor momentum in the parent rest frame.

Definition at line 402 of file LauAbsResonance.hh.

Double_t LauAbsResonance::getQ ( ) const

inlineprotected

Get the current value of the daughter momentum in the resonance rest frame.

Definition at line 398 of file LauAbsResonance.hh.

LauBlattWeisskopfFactor* LauAbsResonance::getResBWFactor ( )

inlineprotected

Get the centrifugal barrier for the resonance decay.

Definition at line 410 of file LauAbsResonance.hh.

const LauBlattWeisskopfFactor* LauAbsResonance::getResBWFactor ( ) const

inlineprotected

Definition at line 411 of file LauAbsResonance.hh.

LauResonanceInfo* LauAbsResonance::getResInfo ( ) const

inlineprotected

Access the resonance info object.

Definition at line 414 of file LauAbsResonance.hh.

virtual LauResonanceModel LauAbsResonance::getResonanceModel ( ) const

pure virtual

Get the resonance model type.

Returns

the resonance model type

Implemented in LauModIndPartWaveMagPhase, LauModIndPartWaveRealImag, LauRhoOmegaMix, LauBelleNR, LauRescatteringRes, LauEFKLLMRes, LauPolarFormFactorSymNR, LauKMatrixProdPole, LauKMatrixProdSVP, LauBelleSymNR, LauNRAmplitude, LauGaussIncohRes, LauFlatNR, LauPolarFormFactorNR, LauPolNR, LauRescattering2Res, LauKappaRes, LauPoleRes, LauBreitWignerRes, LauDabbaRes, LauFlatteRes, LauGounarisSakuraiRes, LauLASSBWRes, LauLASSNRRes, LauLASSRes, LauRelBreitWignerRes, and LauSigmaRes.

const TString& LauAbsResonance::getResonanceName ( ) const

inline

Get the name of the resonance.

Returns

the resonance name

Definition at line 152 of file LauAbsResonance.hh.

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

virtual

Access the given resonance parameter.

Parameters

[in]

name

the name of the parameter

Returns

the corresponding parameter

Reimplemented in LauRhoOmegaMix, LauBelleSymNR, LauBelleNR, LauRescatteringRes, LauEFKLLMRes, LauPolarFormFactorSymNR, LauLASSNRRes, LauLASSRes, LauNRAmplitude, LauPolarFormFactorNR, LauRescattering2Res, LauKappaRes, LauDabbaRes, LauFlatteRes, LauLASSBWRes, and LauSigmaRes.

Definition at line 440 of file LauAbsResonance.cc.

Double_t LauAbsResonance::getResRadius

(

)

const

Get the radius of the resonance barrier factor.

Definition at line 501 of file LauAbsResonance.cc.

const TString& LauAbsResonance::getSanitisedName ( ) const

inline

Get the name of the resonance.

Returns

the resonance name

Definition at line 158 of file LauAbsResonance.hh.

Int_t LauAbsResonance::getSpin ( ) const

inline

Get the spin of the resonance.

Returns

the resonance spin

Definition at line 170 of file LauAbsResonance.hh.

LauSpinType LauAbsResonance::getSpinType ( ) const

inline

Get the spin type.

Returns

the spin formalism

Definition at line 146 of file LauAbsResonance.hh.

Double_t LauAbsResonance::getWidth ( ) const

inline

Get the width of the resonance.

Returns

the resonance width

Definition at line 188 of file LauAbsResonance.hh.

LauParameter* LauAbsResonance::getWidthPar ( )

inline

Get the width parameter of the resonance.

Returns

the resonance width parameter

Definition at line 200 of file LauAbsResonance.hh.

Bool_t LauAbsResonance::ignoreBarrierScaling ( ) const

inline

Get the ignore barrier factor scaling flag.

Whether to ignore barrier factor scaling in the amplitude numerator, they are still used for the mass-dependent width

Returns

the ignore barrier amplitude scaling flag

Definition at line 263 of file LauAbsResonance.hh.

void LauAbsResonance::ignoreBarrierScaling ( const Bool_t  boolean )

inline

Set the ignore barrier factor scaling flag.

Whether to ignore barrier factor scaling in the amplitude numerator, they are still used for the mass-dependent width

Parameters

[in]

boolean

the ignore barrier factor scaling status

Definition at line 270 of file LauAbsResonance.hh.

Bool_t LauAbsResonance::ignoreMomenta ( ) const

inline

Get the ignore momenta flag.

Whether to ignore the momentum factors in both the spin factor and the mass-dependent width

Returns

the ignore momenta flag

Definition at line 234 of file LauAbsResonance.hh.

void LauAbsResonance::ignoreMomenta ( const Bool_t  boolean )

inline

Set the ignore momenta flag.

Whether to ignore the momentum factors in both the spin factor and the mass-dependent width

Parameters

[in]

boolean

the ignore momenta status

Definition at line 242 of file LauAbsResonance.hh.

Bool_t LauAbsResonance::ignoreSpin ( ) const

inline

Get the ignore spin flag.

Whether to set the spinTerm to unity always

Returns

the ignore spin flag

Definition at line 249 of file LauAbsResonance.hh.

void LauAbsResonance::ignoreSpin ( const Bool_t  boolean )

inline

Set the ignore spin flag.

Whether to set the spinTerm to unity always

Parameters

[in]

boolean

the ignore spin status

Definition at line 256 of file LauAbsResonance.hh.

virtual void LauAbsResonance::initialise ( )

pure virtual

Initialise the model.

Implemented in LauBelleNR, LauEFKLLMRes, LauPolarFormFactorSymNR, LauRhoOmegaMix, LauPolarFormFactorNR, LauRescatteringRes, LauKMatrixProdPole, LauKMatrixProdSVP, LauBelleSymNR, LauAbsModIndPartWave, LauNRAmplitude, LauPolNR, LauGaussIncohRes, LauKappaRes, LauPoleRes, LauRescattering2Res, LauBreitWignerRes, LauDabbaRes, LauFlatteRes, LauGounarisSakuraiRes, LauLASSBWRes, LauLASSNRRes, LauLASSRes, LauRelBreitWignerRes, LauSigmaRes, and LauFlatNR.

bool LauAbsResonance::isIncoherentModel ( LauResonanceModel  model )

static

Is the resonance model incoherent?

Parameters

[in]

model

the resonance model

Returns

true if the model is incoherent

Definition at line 42 of file LauAbsResonance.cc.

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

private

Copy assignment operator (not implemented)

virtual Bool_t LauAbsResonance::preSymmetrised ( ) const

inlinevirtual

Is the amplitude pre-symmetrised?

The default value is kFALSE, so pre-symmetrised lineshapes should override this.

Returns

whether the amplitude is already symmetrised

Reimplemented in LauBelleSymNR.

Definition at line 214 of file LauAbsResonance.hh.

virtual LauComplex LauAbsResonance::resAmp ( Double_t  mass, Double_t  spinTerm  )

protectedpure virtual

Complex resonant amplitude.

Parameters

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

Implemented in LauRescatteringRes, LauRhoOmegaMix, LauKappaRes, LauSigmaRes, LauDabbaRes, LauLASSRes, LauLASSNRRes, LauLASSBWRes, LauFlatteRes, LauBelleNR, LauEFKLLMRes, LauPolarFormFactorSymNR, LauBelleSymNR, LauPolarFormFactorNR, LauAbsModIndPartWave, LauNRAmplitude, LauRescattering2Res, LauPolNR, LauKMatrixProdPole, LauKMatrixProdSVP, LauPoleRes, LauBreitWignerRes, LauGounarisSakuraiRes, LauRelBreitWignerRes, LauFlatNR, and LauAbsIncohRes.

void LauAbsResonance::setBarrierRadii ( LauBlattWeisskopfFactor *  resFactor, LauBlattWeisskopfFactor *  parFactor  )

inline

Set the form factor model and parameters.

Parameters

[in]	resFactor	the barrier factor for the resonance decay
[in]	parFactor	the barrier factor for the parent decay

Definition at line 350 of file LauAbsResonance.hh.

void LauAbsResonance::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 in LauRhoOmegaMix, LauBelleSymNR, LauBelleNR, LauRescatteringRes, LauEFKLLMRes, LauPolarFormFactorSymNR, LauLASSNRRes, LauLASSRes, LauNRAmplitude, LauPolarFormFactorNR, LauRescattering2Res, LauKappaRes, LauDabbaRes, LauFlatteRes, LauLASSBWRes, and LauSigmaRes.

Definition at line 428 of file LauAbsResonance.cc.

void LauAbsResonance::setSpinType ( const LauSpinType  spinType )

inline

Set the spin formalism to be used.

Parameters

[in]

spinType

the spin formalism

Definition at line 343 of file LauAbsResonance.hh.

Member Data Documentation

Int_t LauAbsResonance::chargeBachelor_

private

Bachelor charge.

Definition at line 497 of file LauAbsResonance.hh.

Int_t LauAbsResonance::chargeDaug1_

private

Daughter 1 charge.

Definition at line 493 of file LauAbsResonance.hh.

Int_t LauAbsResonance::chargeDaug2_

private

Daughter 2 charge.

Definition at line 495 of file LauAbsResonance.hh.

Int_t LauAbsResonance::chargeParent_

private

Parent charge.

Definition at line 491 of file LauAbsResonance.hh.

Double_t LauAbsResonance::cosHel_

private

Helicity angle cosine.

Definition at line 550 of file LauAbsResonance.hh.

Double_t LauAbsResonance::covFactor_

private

Covariant factor (full spin-dependent expression)

Definition at line 572 of file LauAbsResonance.hh.

const LauDaughters* LauAbsResonance::daughters_

private

Information on the particles.

Definition at line 479 of file LauAbsResonance.hh.

Double_t LauAbsResonance::erm_

private

Covariant factor.

sqrt(1 + z*z), where z = p / mParent

Can also be expressed as E_ij in the parent rest-frame divided by m_ij - indeed this is how LauKinematics calculates it.

See Also

LauKinematics::getcov12

LauKinematics::getcov13

LauKinematics::getcov23

Definition at line 569 of file LauAbsResonance.hh.

Bool_t LauAbsResonance::flipHelicity_

private

Boolean to flip helicity.

Definition at line 537 of file LauAbsResonance.hh.

Bool_t LauAbsResonance::ignoreBarrierScaling_

private

Boolean to ignore barrier factor scaling in the amplitude numerator, they are still used for the mass-dependent width.

Definition at line 543 of file LauAbsResonance.hh.

Bool_t LauAbsResonance::ignoreMomenta_

private

Boolean to ignore the momentum factors in both the spin factor and the mass-dependent width.

Definition at line 539 of file LauAbsResonance.hh.

Bool_t LauAbsResonance::ignoreSpin_

private

Boolean to set the spinTerm to unity always.

Definition at line 541 of file LauAbsResonance.hh.

Double_t LauAbsResonance::mass_

private

Invariant mass.

Definition at line 548 of file LauAbsResonance.hh.

Double_t LauAbsResonance::massBachelor_

private

Definition at line 506 of file LauAbsResonance.hh.

Double_t LauAbsResonance::massDaug1_

private

Daughter 1 mass.

Definition at line 502 of file LauAbsResonance.hh.

Double_t LauAbsResonance::massDaug2_

private

Daughter 2 mass.

Definition at line 504 of file LauAbsResonance.hh.

Double_t LauAbsResonance::massParent_

private

Parent mass.

Definition at line 500 of file LauAbsResonance.hh.

TString LauAbsResonance::nameBachelor_

private

Bachelor name.

Definition at line 488 of file LauAbsResonance.hh.

TString LauAbsResonance::nameDaug1_

private

Daughter 1 name.

Definition at line 484 of file LauAbsResonance.hh.

TString LauAbsResonance::nameDaug2_

private

Daughter 2 name.

Definition at line 486 of file LauAbsResonance.hh.

TString LauAbsResonance::nameParent_

private

Parent name.

Definition at line 482 of file LauAbsResonance.hh.

Double_t LauAbsResonance::p_

private

Bachelor momentum in resonance rest frame.

Definition at line 555 of file LauAbsResonance.hh.

LauBlattWeisskopfFactor* LauAbsResonance::parBWFactor_

private

Blatt Weisskopf barrier for parent decay.

Definition at line 529 of file LauAbsResonance.hh.

Double_t LauAbsResonance::pstar_

private

Bachelor momentum in parent rest frame.

Definition at line 557 of file LauAbsResonance.hh.

Double_t LauAbsResonance::q_

private

Daughter momentum in resonance rest frame.

Definition at line 553 of file LauAbsResonance.hh.

LauBlattWeisskopfFactor* LauAbsResonance::resBWFactor_

private

Blatt Weisskopf barrier for resonance decay.

Definition at line 531 of file LauAbsResonance.hh.

Int_t LauAbsResonance::resCharge_

private

Resonance charge.

Definition at line 525 of file LauAbsResonance.hh.

LauResonanceInfo* LauAbsResonance::resInfo_

private

Information on the resonance.

Definition at line 476 of file LauAbsResonance.hh.

LauParameter* LauAbsResonance::resMass_

private

Resonance mass.

Definition at line 515 of file LauAbsResonance.hh.

TString LauAbsResonance::resName_

private

Resonance name.

Definition at line 509 of file LauAbsResonance.hh.

Int_t LauAbsResonance::resPairAmpInt_

private

DP axis identifier.

Definition at line 527 of file LauAbsResonance.hh.

std::vector<LauParameter*> LauAbsResonance::resParameters_

private

All parameters of the resonance.

Definition at line 520 of file LauAbsResonance.hh.

Int_t LauAbsResonance::resSpin_

private

Resonance spin.

Definition at line 523 of file LauAbsResonance.hh.

LauParameter* LauAbsResonance::resWidth_

private

Resonance width.

Definition at line 517 of file LauAbsResonance.hh.

TString LauAbsResonance::sanitisedName_

private

Resonance name with illegal characters removed.

Definition at line 512 of file LauAbsResonance.hh.

LauSpinType LauAbsResonance::spinType_

private

Spin formalism.

Definition at line 534 of file LauAbsResonance.hh.

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

• inc/LauAbsResonance.hh
• src/LauAbsResonance.cc