Class for defining a K-matrix propagator. More...

#include <LauKMatrixPropagator.hh>

Public Member Functions
	LauKMatrixPropagator (const TString &name, const TString &paramFileName, const Int_t resPairAmpInt, const Int_t nChannels, const Int_t nPoles, const Int_t rowIndex=1)
	Constructor. More...

virtual	~LauKMatrixPropagator ()
	Destructor.

void	updatePropagator (const Double_t s)
	Calculate the K-matrix propagator for the given s value. More...

void	setParameters (const TString &inputFile)
	Read an input file to set parameters. More...

void	ignoreBWBarrierFactor ()
	Set flag to ignore Blatt-Weisskopf-like barrier factor.

TMatrixD	getKMatrix () const
	Get the scattering K matrix. More...

TMatrixD	getRealPropMatrix () const
	Get the real part of the propagator full matrix. More...

TMatrixD	getNegImagPropMatrix () const
	Get the negative imaginary part of the full propagator matrix. More...

Double_t	getRealPropTerm (const Int_t channelIndex) const
	Get the real part of the term of the propagator. More...

Double_t	getImagPropTerm (const Int_t channelIndex) const
	Get the imaginary part of the term of the propagator. More...

Double_t	getPoleDenomTerm (const Int_t poleIndex) const
	Get the 1/(m_pole^2 -s) terms for the scattering and production K-matrix formulae. More...

Int_t	getL (const Int_t iChannel) const
	Get spin of K-matrix. More...

Int_t	getIndex () const
	Get index of final channel. More...

LauParameter &	getPoleMassSqParameter (const Int_t poleIndex)
	Get pole mass parameters, set according to the input file. More...

Double_t	getCouplingConstant (const Int_t poleIndex, const Int_t channelIndex) const
	Get coupling constants that were loaded from the input file. More...

LauParameter &	getCouplingParameter (const Int_t poleIndex, const Int_t channelIndex)
	Get coupling parameters, set according to the input file. More...

Double_t	getScatteringConstant (const Int_t channel1Index, const Int_t channel2Index) const
	Get scattering constants that were loaded from the input file. More...

LauParameter &	getScatteringParameter (const Int_t channel1Index, const Int_t channel2Index)
	Get scattering parameters, set according to the input file. More...

LauParameter &	getmSq0 ()
	Get mSq0 production parameter. More...

LauParameter &	gets0Scatt ()
	Get s0Scatt production parameter. More...

LauParameter &	gets0Prod ()
	Get s0 production parameter. More...

LauParameter &	getsA ()
	Get sA production parameter. More...

LauParameter &	getsA0 ()
	Get sA0 production parameter. More...

Double_t	getProdSVPTerm () const
	Get the "slowly-varying part" term of the amplitude. More...

LauComplex	getPropTerm (const Int_t channelIndex) const
	Get the full complex propagator term for a given channel. More...

Int_t	getResPairAmpInt () const
	Get the DP axis identifier. More...

Int_t	getNChannels () const
	Get the number of channels. More...

Int_t	getNPoles () const
	Get the number of poles. More...

TString	getName () const
	Get the propagator name. More...

LauComplex	getTransitionAmp (const Double_t s, const Int_t channel)
	Get the unitary transition amplitude for the given channel. More...

LauComplex	getPhaseSpaceTerm (const Double_t s, const Int_t channel)
	Get the complex phase space term for the given channel and invariant mass squared. More...

Double_t	getAdlerZero () const
	Get the Adler zero factor, which is set when updatePropagator is called. More...

LauComplex	getTHat (const Double_t s, const Int_t channel)
	Get the THat amplitude for the given s and channel number. More...

Protected Types
enum	KMatrixChannels { Zero, PiPi, KK, FourPi, EtaEta, EtaEtaP, KPi, KEtaP, KThreePi, D0K, Dstar0K, TotChannels }
	Integers to specify the allowed channels for the phase space calculations.

Protected Member Functions
void	calcScattKMatrix (const Double_t s)
	Calculate the scattering K-matrix for the given value of s. More...

void	calcRhoMatrix (const Double_t s)
	Calculate the real and imaginary part of the phase space density diagonal matrix. More...

LauComplex	getRho (const Double_t s, const LauKMatrixPropagator::KMatrixChannels) const
	Retrieve the complex phasespace density for a given channel. More...

void	calcGammaMatrix (const Double_t s)
	Calculate the (real) gamma angular-momentum barrier matrix. More...

Double_t	calcGamma (const Int_t iCh, const Double_t s) const
	Calculate the gamma angular-momentum barrier. More...

void	calcPoleDenomVect (const Double_t s)
	Calulate the term 1/(m_pole^2 - s) for the scattering and production K-matrix formulae. More...

LauComplex	calcD0KRho (const Double_t s) const
	Calculate the D0K+ phase space factor. More...

LauComplex	calcDstar0KRho (const Double_t s) const
	Calculate the D*0K+ phase space factor. More...

LauComplex	calcPiPiRho (const Double_t s) const
	Calculate the pipi phase space factor. More...

LauComplex	calcKKRho (const Double_t s) const
	Calculate the KK phase space factor. More...

LauComplex	calcFourPiRho (const Double_t s) const
	Calculate the 4 pi phase space factor. More...

LauComplex	calcEtaEtaRho (const Double_t s) const
	Calculate the eta-eta phase space factor. More...

LauComplex	calcEtaEtaPRho (const Double_t s) const
	Calculate the eta-eta' phase space factor. More...

LauComplex	calcKPiRho (const Double_t s) const
	Calculate the Kpi phase space factor. More...

LauComplex	calcKEtaPRho (const Double_t s) const
	Calculate the K-eta' phase space factor. More...

LauComplex	calcKThreePiRho (const Double_t s) const
	Calculate the Kpipipi phase space factor. More...

Double_t	calcSVPTerm (const Double_t s, const Double_t s0) const
	Calculate the "slow-varying part". More...

void	updateScattSVPTerm (const Double_t s)
	Update the scattering "slowly-varying part". More...

void	updateProdSVPTerm (const Double_t s)
	Update the production "slowly-varying part". More...

void	updateAdlerZeroFactor (const Double_t s)
	Calculate the multiplicative factor containing severa Adler zero constants. More...

Bool_t	checkPhaseSpaceType (const Int_t phaseSpaceInt) const
	Check the phase space factors that need to be used. More...

void	getTMatrix (const LauKinematics *kinematics)
	Get the unitary transition amplitude matrix for the given kinematics. More...

void	getTMatrix (const Double_t s)
	Get the unitary transition amplitude matrix for the given kinematics. More...

void	getSqrtRhoMatrix ()
	Get the square root of the phase space matrix.

Private Member Functions
	LauKMatrixPropagator (const LauKMatrixPropagator &rhs)=delete
	Copy constructor (not implemented)

LauKMatrixPropagator &	operator= (const LauKMatrixPropagator &rhs)=delete
	Copy assignment operator (not implemented)

void	initialiseMatrices ()
	Initialise and set the dimensions for the internal matrices and parameter arrays.

void	storeChannels (const std::vector< std::string > &theLine)
	Store the (phase space) channel indices from a line in the parameter file. More...

void	storePole (const std::vector< std::string > &theLine)
	Store the pole mass and couplings from a line in the parameter file. More...

void	storeScattering (const std::vector< std::string > &theLine)
	Store the scattering coefficients from a line in the parameter file. More...

void	storeRadii (const std::vector< std::string > &theLine)
	Store the channels' characteristic radii from a line in the parameter file. More...

void	storeOrbitalAngularMomenta (const std::vector< std::string > &theLine, std::vector< Int_t > &a)
	Store the channels' angular momenta from a line in the parameter file. More...

void	storeBarrierFactorParameter (const std::vector< std::string > &theLine, std::vector< Int_t > &a)
	Store the barrier-factor parameter from a line in the parameter file. More...

void	storeParameter (const TString &keyword, const TString &parString)
	Store miscelleanous parameters from a line in the parameter file. More...

Private Attributes
TString	name_
	String to store the propagator name.

TString	paramFileName_
	Name of the input parameter file.

Int_t	resPairAmpInt_
	Number to identify the DP axis in question.

Int_t	index_
	Row index - 1.

Double_t	previousS_ { 0.0 }
	s value of the previous pole

Double_t	scattSVP_ { 0.0 }
	"slowly-varying part" for the scattering K-matrix

Double_t	prodSVP_ { 0.0 }
	"slowly-varying part" for the production K-matrix

TMatrixD	realProp_
	Real part of the propagator matrix.

TMatrixD	negImagProp_
	Imaginary part of the propagator matrix.

TMatrixD	ScattKMatrix_
	Scattering K-matrix.

TMatrixD	ReRhoMatrix_
	Real part of the phase space density diagonal matrix.

TMatrixD	ImRhoMatrix_
	Imaginary part of the phase space density diagonal matrix.

TMatrixD	GammaMatrix_
	Gamma angular-momentum barrier matrix.

TMatrixD	IMatrix_
	Identity matrix.

TMatrixD	zeroMatrix_
	Null matrix.

TMatrixD	ReSqrtRhoMatrix_
	Real part of the square root of the phase space density diagonal matrix.

TMatrixD	ImSqrtRhoMatrix_
	Imaginary part of the square root of the phase space density diagonal matrix.

TMatrixD	ReTMatrix_
	Real part of the unitary T matrix.

TMatrixD	ImTMatrix_
	Imaginary part of the unitary T matrix.

Int_t	nChannels_
	Number of channels.

Int_t	nPoles_
	Number of poles.

std::vector< Int_t >	L_
	Vector of orbital angular momenta.

Bool_t	haveCalled_storeBarrierFactorParameter { kFALSE }
	Boolean to indicate whether storeBarrierFactorParameter has been called.

Bool_t	includeBWBarrierFactor_ { kTRUE }
	Boolean to dictate whether to include Blatt-Weisskopf-like denominator in K-matrix centrifugal barrier factor.

std::vector< LauParameter >	mSqPoles_
	Vector of squared pole masses.

LauParArray	gCouplings_
	Array of coupling constants.

LauParArray	fScattering_
	Array of scattering SVP values.

std::vector< Double_t >	radii_
	Vector of characteristic radii.

std::vector< Double_t >	gamAInvRadSq_
	Vector of ratio a/R^2.

std::vector< KMatrixChannels >	phaseSpaceTypes_
	Vector of phase space types.

std::vector< Double_t >	mSumSq_
	Vector of squared masses.

std::vector< Double_t >	mDiffSq_
	Vector of mass differences.

std::vector< Double_t >	poleDenomVect_
	Vector of 1/(m_pole^2 - s) terms for scattering and production K-matrix formulae.

LauParameter	mSq0_
	Constant from input file.

LauParameter	s0Scatt_
	Constant from input file.

LauParameter	s0Prod_
	Constant from input file.

LauParameter	sA_
	Constant from input file.

LauParameter	sA0_
	Constant from input file.

Double_t	sAConst_ { 0.0 }
	Defined as 0.5sAmPi*mPi.

const Double_t	m2piSq_ { 4.0 * LauConstants::mPiSq }
	Defined as 4mPimPi.

const Double_t	m2KSq_ { 4.0 * LauConstants::mKSq }
	Defined as 4mKmK.

const Double_t	m2EtaSq_ { 4.0 * LauConstants::mEtaSq }
	Defined as 4mEtamEta.

const Double_t	mEtaEtaPSumSq_
	Defined as (mEta+mEta')^2. More...

const Double_t	mEtaEtaPDiffSq_
	Defined as (mEta-mEta')^2. More...

const Double_t	mKpiSumSq_
	Defined as (mK+mPi)^2. More...

const Double_t	mKpiDiffSq_
	Defined as (mK-mPi)^2. More...

const Double_t	mKEtaPSumSq_
	Defined as (mK+mEta')^2. More...

const Double_t	mKEtaPDiffSq_
	Defined as (mK-mEta')^2. More...

const Double_t	mK3piDiffSq_
	Defined as (mK-3*mPi)^2. More...

const Double_t	k3piFactor_ { TMath::Power( ( 1.44 - mK3piDiffSq_ ) / 1.44, -2.5 ) }
	Factor used to calculate the Kpipipi phase space term.

const Double_t	fourPiFactor1_ { 16.0 * LauConstants::mPiSq }
	Factor used to calculate the pipipipi phase space term.

const Double_t	fourPiFactor2_ { TMath::Sqrt( 1.0 - fourPiFactor1_ ) }
	Factor used to calculate the pipipipi phase space term.

const Double_t	mD0KSumSq_
	Defined as (mD0+mK)^2. More...

const Double_t	mD0KDiffSq_
	Defined as (mD0-mK)^2. More...

const Double_t	mDstar0KSumSq_
	Defined as (mD*0+mK)^2. More...

const Double_t	mDstar0KDiffSq_
	Defined as (mD*0-mK)^2. More...

Double_t	adlerZeroFactor_ { 0.0 }
	Multiplicative factor containing various Adler zero constants.

Bool_t	parametersSet_ { kFALSE }
	Tracks if all params have been set.

Bool_t	scattSymmetry_ { kFALSE }
	Control if scattering constants are channel symmetric: f_ji = f_ij.

Static Private Attributes
static constexpr Bool_t	verbose_ { kFALSE }
	Control the output of the functions.

Detailed Description

Class for defining a K-matrix propagator.

Class used to define a K-matrix propagator. See the following papers for info: hep-ph/0204328, hep-ex/0312040, [hep-ex]0804.2089 and hep-ph/9705401.

Definition at line 54 of file LauKMatrixPropagator.hh.

Constructor & Destructor Documentation

◆ LauKMatrixPropagator()

LauKMatrixPropagator::LauKMatrixPropagator	(	const TString &	name,
		const TString &	paramFileName,
		const Int_t	resPairAmpInt,
		const Int_t	nChannels,
		const Int_t	nPoles,
		const Int_t	rowIndex = `1`
	)

Constructor.

Parameters

[in]	name	name of the propagator
[in]	paramFileName	the parameter file name
[in]	resPairAmpInt	the number of the daughter not produced by the resonance
[in]	nChannels	the number of channels
[in]	nPoles	the number of poles
[in]	rowIndex	this specifies which row of the propagator should be used when summing over the amplitude channels

Definition at line 47 of file LauKMatrixPropagator.cc.

Member Function Documentation

◆ calcD0KRho()

LauComplex LauKMatrixPropagator::calcD0KRho ( const Double_t s ) const

protected

Calculate the D0K+ phase space factor.

Parameters

[in] s the invariant mass squared

Returns: the complex phase space factor

Definition at line 1039 of file LauKMatrixPropagator.cc.

◆ calcDstar0KRho()

LauComplex LauKMatrixPropagator::calcDstar0KRho ( const Double_t s ) const

protected

Calculate the D*0K+ phase space factor.

Parameters

[in] s the invariant mass squared

Returns: the complex phase space factor

Definition at line 1059 of file LauKMatrixPropagator.cc.

◆ calcEtaEtaPRho()

LauComplex LauKMatrixPropagator::calcEtaEtaPRho ( const Double_t s ) const

protected

Calculate the eta-eta' phase space factor.

Parameters

[in] s the invariant mass squared

Returns: the complex phase space factor

Definition at line 1175 of file LauKMatrixPropagator.cc.

◆ calcEtaEtaRho()

LauComplex LauKMatrixPropagator::calcEtaEtaRho ( const Double_t s ) const

protected

Calculate the eta-eta phase space factor.

Parameters

[in] s the invariant mass squared

Returns: the complex phase space factor

Definition at line 1157 of file LauKMatrixPropagator.cc.

◆ calcFourPiRho()

LauComplex LauKMatrixPropagator::calcFourPiRho ( const Double_t s ) const

protected

Calculate the 4 pi phase space factor.

Parameters

[in] s the invariant mass squared

Returns: the complex phase space factor

Definition at line 1115 of file LauKMatrixPropagator.cc.

◆ calcGamma()

Double_t LauKMatrixPropagator::calcGamma	(	const Int_t	iCh,
		const Double_t	s
	)		const

protected

Calculate the gamma angular-momentum barrier.

Parameters

[in]	iCh	the channel index
[in]	s	the invariant mass squared

Returns: the centrifugal barrier factor for L=0,1, or 2

Definition at line 945 of file LauKMatrixPropagator.cc.

◆ calcGammaMatrix()

void LauKMatrixPropagator::calcGammaMatrix ( const Double_t s )

protected

Calculate the (real) gamma angular-momentum barrier matrix.

Parameters

[in] s the invariant mass squared

Definition at line 919 of file LauKMatrixPropagator.cc.

◆ calcKEtaPRho()

LauComplex LauKMatrixPropagator::calcKEtaPRho ( const Double_t s ) const

protected

Calculate the K-eta' phase space factor.

Parameters

[in] s the invariant mass squared

Returns: the complex phase space factor

Definition at line 1223 of file LauKMatrixPropagator.cc.

◆ calcKKRho()

LauComplex LauKMatrixPropagator::calcKKRho ( const Double_t s ) const

protected

Calculate the KK phase space factor.

Parameters

[in] s the invariant mass squared

Returns: the complex phase space factor

Definition at line 1097 of file LauKMatrixPropagator.cc.

◆ calcKPiRho()

LauComplex LauKMatrixPropagator::calcKPiRho ( const Double_t s ) const

protected

Calculate the Kpi phase space factor.

Parameters

[in] s the invariant mass squared

Returns: the complex phase space factor

Definition at line 1203 of file LauKMatrixPropagator.cc.

◆ calcKThreePiRho()

LauComplex LauKMatrixPropagator::calcKThreePiRho ( const Double_t s ) const

protected

Calculate the Kpipipi phase space factor.

Parameters

[in] s the invariant mass squared

Returns: the complex phase space factor

Definition at line 1243 of file LauKMatrixPropagator.cc.

◆ calcPiPiRho()

LauComplex LauKMatrixPropagator::calcPiPiRho ( const Double_t s ) const

protected

Calculate the pipi phase space factor.

Parameters

[in] s the invariant mass squared

Returns: the complex phase space factor

Definition at line 1079 of file LauKMatrixPropagator.cc.

◆ calcPoleDenomVect()

void LauKMatrixPropagator::calcPoleDenomVect ( const Double_t s )

protected

Calulate the term 1/(m_pole^2 - s) for the scattering and production K-matrix formulae.

Parameters

[in] s the invariant mass squared

Definition at line 767 of file LauKMatrixPropagator.cc.

◆ calcRhoMatrix()

void LauKMatrixPropagator::calcRhoMatrix ( const Double_t s )

protected

Calculate the real and imaginary part of the phase space density diagonal matrix.

Parameters

[in] s the invariant mass squared

Definition at line 968 of file LauKMatrixPropagator.cc.

◆ calcScattKMatrix()

void LauKMatrixPropagator::calcScattKMatrix ( const Double_t s )

protected

Calculate the scattering K-matrix for the given value of s.

Parameters

[in] s the invariant mass squared

Definition at line 706 of file LauKMatrixPropagator.cc.

◆ calcSVPTerm()

Double_t LauKMatrixPropagator::calcSVPTerm	(	const Double_t	s,
		const Double_t	s0
	)		const

protected

Calculate the "slow-varying part".

Parameters

[in]	s	the invariant mass squared
[in]	s0	the invariant mass squared at the Adler zero

Returns: the SVP term

Definition at line 874 of file LauKMatrixPropagator.cc.

◆ checkPhaseSpaceType()

Bool_t LauKMatrixPropagator::checkPhaseSpaceType ( const Int_t phaseSpaceInt ) const

protected

Check the phase space factors that need to be used.

Parameters

[in] phaseSpaceInt phase space types

Returns: true of false

Definition at line 1270 of file LauKMatrixPropagator.cc.

◆ getAdlerZero()

Double_t LauKMatrixPropagator::getAdlerZero ( ) const

inline

Get the Adler zero factor, which is set when updatePropagator is called.

Returns: the Adler zero factor

Definition at line 269 of file LauKMatrixPropagator.hh.

◆ getCouplingConstant()

Double_t LauKMatrixPropagator::getCouplingConstant	(	const Int_t	poleIndex,
		const Int_t	channelIndex
	)		const

Get coupling constants that were loaded from the input file.

Parameters

[in]	poleIndex	number of the required pole
[in]	channelIndex	number of the required channel

Returns: the value of the coupling constant

Definition at line 808 of file LauKMatrixPropagator.cc.

◆ getCouplingParameter()

LauParameter & LauKMatrixPropagator::getCouplingParameter	(	const Int_t	poleIndex,
		const Int_t	channelIndex
	)

Get coupling parameters, set according to the input file.

Parameters

[in]	poleIndex	number of the required pole
[in]	channelIndex	number of the required channel

Returns: the parameter of the coupling constant

Definition at line 826 of file LauKMatrixPropagator.cc.

◆ getImagPropTerm()

Double_t LauKMatrixPropagator::getImagPropTerm ( const Int_t channelIndex ) const

Get the imaginary part of the term of the propagator.

Parameters

[in] channelIndex the channel number

Returns: the imaginiary part of the propagator term

Definition at line 111 of file LauKMatrixPropagator.cc.

◆ getIndex()

Int_t LauKMatrixPropagator::getIndex ( ) const

inline

Get index of final channel.

Returns: the index of the channel into which the scattering happens

Definition at line 141 of file LauKMatrixPropagator.hh.

◆ getKMatrix()

TMatrixD LauKMatrixPropagator::getKMatrix ( ) const

inline

Get the scattering K matrix.

Returns: the real, symmetric scattering K matrix

Definition at line 95 of file LauKMatrixPropagator.hh.

◆ getL()

Int_t LauKMatrixPropagator::getL ( const Int_t iChannel ) const

inline

Get spin of K-matrix.

Parameters

[in] iChannel the index of the channel

Returns: the value of the orbital angular momentum, L_, for this channel

Definition at line 135 of file LauKMatrixPropagator.hh.

◆ getmSq0()

LauParameter& LauKMatrixPropagator::getmSq0 ( )

inline

Get mSq0 production parameter.

Returns: the mSq0 parameter

Definition at line 186 of file LauKMatrixPropagator.hh.

◆ getName()

TString LauKMatrixPropagator::getName ( ) const

inline

Get the propagator name.

Returns: the name of the propagator

Definition at line 247 of file LauKMatrixPropagator.hh.

◆ getNChannels()

Int_t LauKMatrixPropagator::getNChannels ( ) const

inline

Get the number of channels.

Returns: the number of channels

Definition at line 235 of file LauKMatrixPropagator.hh.

◆ getNegImagPropMatrix()

TMatrixD LauKMatrixPropagator::getNegImagPropMatrix ( ) const

inline

Get the negative imaginary part of the full propagator matrix.

Returns: the negative imaginary part of the full propagator matrix

Definition at line 107 of file LauKMatrixPropagator.hh.

◆ getNPoles()

Int_t LauKMatrixPropagator::getNPoles ( ) const

inline

Get the number of poles.

Returns: the number of poles

Definition at line 241 of file LauKMatrixPropagator.hh.

◆ getPhaseSpaceTerm()

LauComplex LauKMatrixPropagator::getPhaseSpaceTerm	(	const Double_t	s,
		const Int_t	channel
	)

Get the complex phase space term for the given channel and invariant mass squared.

Parameters

[in]	s	The invariant mass squared
[in]	channel	The index number of the channel process

Returns: the complex phase space term rho(channel, channel)

Definition at line 1300 of file LauKMatrixPropagator.cc.

◆ getPoleDenomTerm()

Double_t LauKMatrixPropagator::getPoleDenomTerm ( const Int_t poleIndex ) const

Get the 1/(m_pole^2 -s) terms for the scattering and production K-matrix formulae.

Parameters

[in] poleIndex the number of the pole required

Returns: the value of 1/(m_pole^2 -s)

Definition at line 785 of file LauKMatrixPropagator.cc.

◆ getPoleMassSqParameter()

LauParameter & LauKMatrixPropagator::getPoleMassSqParameter ( const Int_t poleIndex )

Get pole mass parameters, set according to the input file.

Parameters

[in] poleIndex number of the required pole

Returns: the parameter of the pole mass

Definition at line 797 of file LauKMatrixPropagator.cc.

◆ getProdSVPTerm()

Double_t LauKMatrixPropagator::getProdSVPTerm ( ) const

inline

Get the "slowly-varying part" term of the amplitude.

Returns: the svp term

Definition at line 216 of file LauKMatrixPropagator.hh.

◆ getPropTerm()

LauComplex LauKMatrixPropagator::getPropTerm ( const Int_t channelIndex ) const

Get the full complex propagator term for a given channel.

Parameters

[in] channelIndex the number of the required channel

Returns: the complex propagator term

Definition at line 88 of file LauKMatrixPropagator.cc.

◆ getRealPropMatrix()

TMatrixD LauKMatrixPropagator::getRealPropMatrix ( ) const

inline

Get the real part of the propagator full matrix.

Returns: the real part of the propagator full matrix

Definition at line 101 of file LauKMatrixPropagator.hh.

◆ getRealPropTerm()

Double_t LauKMatrixPropagator::getRealPropTerm ( const Int_t channelIndex ) const

Get the real part of the term of the propagator.

Parameters

[in] channelIndex the channel number

Returns: the real part of the propagator term

Definition at line 99 of file LauKMatrixPropagator.cc.

◆ getResPairAmpInt()

Int_t LauKMatrixPropagator::getResPairAmpInt ( ) const

inline

Get the DP axis identifier.

Returns: the value to identify the DP axis in question

Definition at line 229 of file LauKMatrixPropagator.hh.

◆ getRho()

LauComplex LauKMatrixPropagator::getRho	(	const Double_t	s,
		const LauKMatrixPropagator::KMatrixChannels	phaseSpaceIndex
	)		const

protected

Retrieve the complex phasespace density for a given channel.

Parameters

[in]	s	the invariant mass squared
[in]	phaseSpaceIndex	the phasespace index of the channel

Returns: the complex phasespace density

Definition at line 996 of file LauKMatrixPropagator.cc.

◆ gets0Prod()

LauParameter& LauKMatrixPropagator::gets0Prod ( )

inline

Get s0 production parameter.

Returns: the s0Prod parameter

Definition at line 198 of file LauKMatrixPropagator.hh.

◆ gets0Scatt()

LauParameter& LauKMatrixPropagator::gets0Scatt ( )

inline

Get s0Scatt production parameter.

Returns: the s0Scatt parameter

Definition at line 192 of file LauKMatrixPropagator.hh.

◆ getsA()

LauParameter& LauKMatrixPropagator::getsA ( )

inline

Get sA production parameter.

Returns: the sA parameter

Definition at line 204 of file LauKMatrixPropagator.hh.

◆ getsA0()

LauParameter& LauKMatrixPropagator::getsA0 ( )

inline

Get sA0 production parameter.

Returns: the sA0 parameter

Definition at line 210 of file LauKMatrixPropagator.hh.

◆ getScatteringConstant()

Double_t LauKMatrixPropagator::getScatteringConstant	(	const Int_t	channel1Index,
		const Int_t	channel2Index
	)		const

Get scattering constants that were loaded from the input file.

Parameters

[in]	channel1Index	number of the first channel index
[in]	channel2Index	number of the second channel index

Returns: the value of the scattering constant

Definition at line 842 of file LauKMatrixPropagator.cc.

◆ getScatteringParameter()

LauParameter & LauKMatrixPropagator::getScatteringParameter	(	const Int_t	channel1Index,
		const Int_t	channel2Index
	)

Get scattering parameters, set according to the input file.

Parameters

[in]	channel1Index	number of the first channel index
[in]	channel2Index	number of the second channel index

Returns: the parameter of the scattering constant

Definition at line 860 of file LauKMatrixPropagator.cc.

◆ getTHat()

LauComplex LauKMatrixPropagator::getTHat	(	const Double_t	s,
		const Int_t	channel
	)

Get the THat amplitude for the given s and channel number.

Parameters

[in]	s	The invariant mass squared
[in]	channel	The index number of the channel process

Returns: the complex THat amplitude

Definition at line 1443 of file LauKMatrixPropagator.cc.

◆ getTMatrix() [1/2]

void LauKMatrixPropagator::getTMatrix ( const Double_t s )

protected

Get the unitary transition amplitude matrix for the given kinematics.

Parameters

[in] s The invariant mass squared of the system

Definition at line 1349 of file LauKMatrixPropagator.cc.

◆ getTMatrix() [2/2]

void LauKMatrixPropagator::getTMatrix ( const LauKinematics * kinematics )

protected

Get the unitary transition amplitude matrix for the given kinematics.

Parameters

[in] kinematics The pointer to the constant kinematics

Definition at line 1321 of file LauKMatrixPropagator.cc.

◆ getTransitionAmp()

LauComplex LauKMatrixPropagator::getTransitionAmp	(	const Double_t	s,
		const Int_t	channel
	)

Get the unitary transition amplitude for the given channel.

Parameters

[in]	s	The invariant mass squared
[in]	channel	The index number of the channel process

Returns: the complex amplitude T

Definition at line 1282 of file LauKMatrixPropagator.cc.

◆ setParameters()

void LauKMatrixPropagator::setParameters ( const TString & inputFile )

Read an input file to set parameters.

Parameters

[in] inputFile name of the input file

Definition at line 220 of file LauKMatrixPropagator.cc.

◆ storeBarrierFactorParameter()

void LauKMatrixPropagator::storeBarrierFactorParameter	(	const std::vector< std::string > &	theLine,
		std::vector< Int_t > &	a
	)

private

Store the barrier-factor parameter from a line in the parameter file.

Parameters

[in]	theLine	Vector of strings corresponding to the line from the parameter file
[in]	a	Vector of integers corresponding to parameter in the propagator denominator

Definition at line 629 of file LauKMatrixPropagator.cc.

◆ storeChannels()

void LauKMatrixPropagator::storeChannels ( const std::vector< std::string > & theLine )

private

Store the (phase space) channel indices from a line in the parameter file.

Parameters

[in] theLine Vector of strings corresponding to the line from the parameter file

Definition at line 439 of file LauKMatrixPropagator.cc.

◆ storeOrbitalAngularMomenta()

void LauKMatrixPropagator::storeOrbitalAngularMomenta	(	const std::vector< std::string > &	theLine,
		std::vector< Int_t > &	a
	)

private

Store the channels' angular momenta from a line in the parameter file.

Parameters

[in]	theLine	Vector of strings corresponding to the line from the parameter file
[in]	a	Vector of integers corresponding to parameter in the propagator denominator

Definition at line 551 of file LauKMatrixPropagator.cc.

◆ storeParameter()

void LauKMatrixPropagator::storeParameter	(	const TString &	keyword,
		const TString &	parString
	)

private

Store miscelleanous parameters from a line in the parameter file.

Parameters

[in]	keyword	the name of the parameter to be set
[in]	parString	the string containing the value of the parameter

Definition at line 662 of file LauKMatrixPropagator.cc.

◆ storePole()

void LauKMatrixPropagator::storePole ( const std::vector< std::string > & theLine )

private

Store the pole mass and couplings from a line in the parameter file.

Parameters

[in] theLine Vector of strings corresponding to the line from the parameter file

Definition at line 471 of file LauKMatrixPropagator.cc.

◆ storeRadii()

void LauKMatrixPropagator::storeRadii ( const std::vector< std::string > & theLine )

private

Store the channels' characteristic radii from a line in the parameter file.

Parameters

[in] theLine Vector of strings corresponding to the line from the parameter file

Definition at line 602 of file LauKMatrixPropagator.cc.

◆ storeScattering()

void LauKMatrixPropagator::storeScattering ( const std::vector< std::string > & theLine )

private

Store the scattering coefficients from a line in the parameter file.

Parameters

[in] theLine Vector of strings corresponding to the line from the parameter file

Definition at line 515 of file LauKMatrixPropagator.cc.

◆ updateAdlerZeroFactor()

void LauKMatrixPropagator::updateAdlerZeroFactor ( const Double_t s )

protected

Calculate the multiplicative factor containing severa Adler zero constants.

Parameters

[in] s the invariant mass squared

Definition at line 905 of file LauKMatrixPropagator.cc.

◆ updateProdSVPTerm()

void LauKMatrixPropagator::updateProdSVPTerm ( const Double_t s )

protected

Update the production "slowly-varying part".

Parameters

[in] s the invariant mass squared

Definition at line 898 of file LauKMatrixPropagator.cc.

◆ updatePropagator()

void LauKMatrixPropagator::updatePropagator ( const Double_t s )

Calculate the K-matrix propagator for the given s value.

Parameters

[in] s the invariant mass squared

Definition at line 123 of file LauKMatrixPropagator.cc.

◆ updateScattSVPTerm()

void LauKMatrixPropagator::updateScattSVPTerm ( const Double_t s )

protected

Update the scattering "slowly-varying part".

Parameters

[in] s the invariant mass squared

Definition at line 891 of file LauKMatrixPropagator.cc.

Member Data Documentation

◆ mD0KDiffSq_

const Double_t LauKMatrixPropagator::mD0KDiffSq_

private

Initial value:

{ ( LauConstants::mD0 - LauConstants::mK ) *

( LauConstants::mD0 - LauConstants::mK ) }

Defined as (mD0-mK)^2.

Definition at line 637 of file LauKMatrixPropagator.hh.

◆ mD0KSumSq_

const Double_t LauKMatrixPropagator::mD0KSumSq_

private

Initial value:

{ ( LauConstants::mD0 + LauConstants::mK ) *

( LauConstants::mD0 + LauConstants::mK ) }

Defined as (mD0+mK)^2.

Definition at line 634 of file LauKMatrixPropagator.hh.

◆ mDstar0KDiffSq_

const Double_t LauKMatrixPropagator::mDstar0KDiffSq_

private

Initial value:

{
        ( LauResonanceMaker::get().getResInfo( "D*0" )->getMass()->value() - LauConstants::mK ) *
        ( LauResonanceMaker::get().getResInfo( "D*0" )->getMass()->value() - LauConstants::mK ) }

Defined as (mD*0-mK)^2.

Definition at line 644 of file LauKMatrixPropagator.hh.

◆ mDstar0KSumSq_

const Double_t LauKMatrixPropagator::mDstar0KSumSq_

private

Initial value:

{
        ( LauResonanceMaker::get().getResInfo( "D*0" )->getMass()->value() + LauConstants::mK ) *
        ( LauResonanceMaker::get().getResInfo( "D*0" )->getMass()->value() + LauConstants::mK ) }

Defined as (mD*0+mK)^2.

Definition at line 640 of file LauKMatrixPropagator.hh.

◆ mEtaEtaPDiffSq_

const Double_t LauKMatrixPropagator::mEtaEtaPDiffSq_

private

Initial value:

{ ( LauConstants::mEta - LauConstants::mEtaPrime ) *

( LauConstants::mEta - LauConstants::mEtaPrime ) }

Defined as (mEta-mEta')^2.

Definition at line 610 of file LauKMatrixPropagator.hh.

◆ mEtaEtaPSumSq_

const Double_t LauKMatrixPropagator::mEtaEtaPSumSq_

private

Initial value:

{ ( LauConstants::mEta + LauConstants::mEtaPrime ) *

( LauConstants::mEta + LauConstants::mEtaPrime ) }

Defined as (mEta+mEta')^2.

Definition at line 607 of file LauKMatrixPropagator.hh.

◆ mK3piDiffSq_

const Double_t LauKMatrixPropagator::mK3piDiffSq_

private

Initial value:

{ ( LauConstants::mK - 3.0 * LauConstants::mPi ) *

( LauConstants::mK - 3.0 * LauConstants::mPi ) }

Defined as (mK-3*mPi)^2.

Definition at line 625 of file LauKMatrixPropagator.hh.

◆ mKEtaPDiffSq_

const Double_t LauKMatrixPropagator::mKEtaPDiffSq_

private

Initial value:

{ ( LauConstants::mK - LauConstants::mEtaPrime ) *

( LauConstants::mK - LauConstants::mEtaPrime ) }

Defined as (mK-mEta')^2.

Definition at line 622 of file LauKMatrixPropagator.hh.

◆ mKEtaPSumSq_

const Double_t LauKMatrixPropagator::mKEtaPSumSq_

private

Initial value:

{ ( LauConstants::mK + LauConstants::mEtaPrime ) *

( LauConstants::mK + LauConstants::mEtaPrime ) }

Defined as (mK+mEta')^2.

Definition at line 619 of file LauKMatrixPropagator.hh.

◆ mKpiDiffSq_

const Double_t LauKMatrixPropagator::mKpiDiffSq_

private

Initial value:

{ ( LauConstants::mK - LauConstants::mPi ) *

( LauConstants::mK - LauConstants::mPi ) }

Defined as (mK-mPi)^2.

Definition at line 616 of file LauKMatrixPropagator.hh.

◆ mKpiSumSq_

const Double_t LauKMatrixPropagator::mKpiSumSq_

private

Initial value:

{ ( LauConstants::mK + LauConstants::mPi ) *

( LauConstants::mK + LauConstants::mPi ) }

Defined as (mK+mPi)^2.

Definition at line 613 of file LauKMatrixPropagator.hh.

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

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

Public Member Functions

Protected Types

Protected Member Functions

Private Member Functions

Private Attributes

Static Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ LauKMatrixPropagator()

Member Function Documentation

◆ calcD0KRho()

◆ calcDstar0KRho()

◆ calcEtaEtaPRho()

◆ calcEtaEtaRho()

◆ calcFourPiRho()

◆ calcGamma()

◆ calcGammaMatrix()

◆ calcKEtaPRho()

◆ calcKKRho()

◆ calcKPiRho()

◆ calcKThreePiRho()

◆ calcPiPiRho()

◆ calcPoleDenomVect()

◆ calcRhoMatrix()

◆ calcScattKMatrix()

◆ calcSVPTerm()

◆ checkPhaseSpaceType()

◆ getAdlerZero()

◆ getCouplingConstant()

◆ getCouplingParameter()

◆ getImagPropTerm()

◆ getIndex()

◆ getKMatrix()

◆ getL()

◆ getmSq0()

◆ getName()

◆ getNChannels()

◆ getNegImagPropMatrix()

◆ getNPoles()

◆ getPhaseSpaceTerm()

◆ getPoleDenomTerm()

◆ getPoleMassSqParameter()

◆ getProdSVPTerm()

◆ getPropTerm()

◆ getRealPropMatrix()

◆ getRealPropTerm()

◆ getResPairAmpInt()

◆ getRho()

◆ gets0Prod()

◆ gets0Scatt()

◆ getsA()

◆ getsA0()

◆ getScatteringConstant()

◆ getScatteringParameter()

◆ getTHat()

◆ getTMatrix() [1/2]

◆ getTMatrix() [2/2]

◆ getTransitionAmp()

◆ setParameters()

◆ storeBarrierFactorParameter()

◆ storeChannels()

◆ storeOrbitalAngularMomenta()

◆ storeParameter()

◆ storePole()

◆ storeRadii()

◆ storeScattering()

◆ updateAdlerZeroFactor()

◆ updateProdSVPTerm()

◆ updatePropagator()

◆ updateScattSVPTerm()

Member Data Documentation

◆ mD0KDiffSq_

◆ mD0KSumSq_

◆ mDstar0KDiffSq_

◆ mDstar0KSumSq_

◆ mEtaEtaPDiffSq_

◆ mEtaEtaPSumSq_

◆ mK3piDiffSq_

◆ mKEtaPDiffSq_

◆ mKEtaPSumSq_