EvtBCLFF Class Reference

#include <EvtGenModels/EvtBCLFF.hh>

Inheritance diagram for EvtBCLFF:

Public Member Functions
	EvtBCLFF (int numarg, double *arglist)
void	getscalarff (EvtId parent, EvtId daughter, double t, double, double *fpf, double *f0f) override
void	getvectorff (EvtId parent, EvtId daughter, double t, double, double *a1f, double *a2f, double *vf, double *a0f) override
void	gettensorff (EvtId parent, EvtId daughter, double t, double, double *hf, double *kf, double *bp, double *bm) override
	Not Implemented.
void	getbaryonff (EvtId, EvtId, double, double, double *, double *, double *, double *) override
	Not Implemented.
void	getdiracff (EvtId, EvtId, double, double, double *, double *, double *, double *, double *, double *) override
	Not Implemented.
void	getraritaff (EvtId, EvtId, double, double, double *, double *, double *, double *, double *, double *, double *, double *) override
	Not Implemented.
Public Member Functions inherited from EvtSemiLeptonicFF
virtual	~EvtSemiLeptonicFF ()

Private Attributes
int	m_numBCLFFCoefficients
	Total number of parameters passed to the model.
std::array< double, 19 >	m_BCLFFCoefficients
	Parameters passed to the model; BCL expansion coefficients.

Static Private Attributes
static constexpr double	m_resonance0Minus { 5.279 }
	Mass of the 0- resonance for the parametrization of the vector FF.
static constexpr double	m_resonance1Minus { 5.325 }
	Mass of the 1- resonance for the parametrization of the vector FF.
static constexpr double	m_resonance1Plus { 5.724 }
	Mass of the 1+ resonance for the parametrization of the vector FF.

Detailed Description

BCL Form Factors.

Definition at line 31 of file EvtBCLFF.hh.

Constructor & Destructor Documentation

EvtBCLFF()

EvtBCLFF::EvtBCLFF	(	int	numarg,
		double *	arglist )

constructor

Definition at line 31 of file EvtBCLFF.cpp.

Member Function Documentation

getbaryonff()

void EvtBCLFF::getbaryonff ( EvtId , EvtId , double , double , double * , double * , double * , double *  )

overridevirtual

Not Implemented.

Implements EvtSemiLeptonicFF.

Definition at line 178 of file EvtBCLFF.cpp.

getdiracff()

void EvtBCLFF::getdiracff ( EvtId , EvtId , double , double , double * , double * , double * , double * , double * , double *  )

overridevirtual

Not Implemented.

Implements EvtSemiLeptonicFF.

Definition at line 186 of file EvtBCLFF.cpp.

getraritaff()

void EvtBCLFF::getraritaff ( EvtId , EvtId , double , double , double * , double * , double * , double * , double * , double * , double * , double *  )

overridevirtual

Not Implemented.

Implements EvtSemiLeptonicFF.

Definition at line 194 of file EvtBCLFF.cpp.

getscalarff()

void EvtBCLFF::getscalarff ( EvtId parent, EvtId daughter, double t, double , double * fpf, double * f0f )

overridevirtual

Scalar FF's. Implementation follows arXiv:1509.06938v3.

For the scalar FF, the arglist in the constructor should contain 8 expansion parameters: b+_0, b+_1, b+_2, b+_3, b0_0, b0_1, b0_2, b0_3

Parameters

parent
daughter
t	Momentum transfer, also called q2. q2 = (p_B - p_M)^2
fpf	f_+(q2).
f0f	f_0(q2).

Implements EvtSemiLeptonicFF.

Definition at line 44 of file EvtBCLFF.cpp.

gettensorff()

void EvtBCLFF::gettensorff ( EvtId parent, EvtId daughter, double t, double , double * hf, double * kf, double * bp, double * bm )

overridevirtual

Not Implemented.

Implements EvtSemiLeptonicFF.

Definition at line 170 of file EvtBCLFF.cpp.

getvectorff()

void EvtBCLFF::getvectorff ( EvtId parent, EvtId daughter, double t, double , double * a1f, double * a2f, double * vf, double * a0f )

overridevirtual

Vector FF's. Implementation follows arXiv:1503.05534v3. It is assumed that each expansion has three terms (hardcoded). However, this can be easily expanded or generalized. It is not done, because this way we can check if the number of arguments in the decay file is the correct one.

For the vector FF, the arglist in the constructor should contain 11 expansion parameters: A0_1, A0_2, A1_0, A1_1, A1_2, A12_0, A12_1, A12_2, V_0, V_1, V_2 Nota bene: A0_0 is correlated to A12_0.

Parameters

parent
daughter
t	Momentum transfer, also called q2. q2 = (p_B - p_M)^2
a1f	A1(q2)
a2f	A2(q2)
vf	V(q2)
a0f	A0(q2)

Implements EvtSemiLeptonicFF.

Definition at line 96 of file EvtBCLFF.cpp.

Member Data Documentation

m_BCLFFCoefficients

std::array<double, 19> EvtBCLFF::m_BCLFFCoefficients

private

Parameters passed to the model; BCL expansion coefficients.

Definition at line 92 of file EvtBCLFF.hh.

m_numBCLFFCoefficients

int EvtBCLFF::m_numBCLFFCoefficients

private

Total number of parameters passed to the model.

Definition at line 90 of file EvtBCLFF.hh.

m_resonance0Minus

double EvtBCLFF::m_resonance0Minus { 5.279 }

staticconstexprprivate

Mass of the 0- resonance for the parametrization of the vector FF.

Definition at line 95 of file EvtBCLFF.hh.

m_resonance1Minus

double EvtBCLFF::m_resonance1Minus { 5.325 }

staticconstexprprivate

Mass of the 1- resonance for the parametrization of the vector FF.

Definition at line 97 of file EvtBCLFF.hh.

m_resonance1Plus

double EvtBCLFF::m_resonance1Plus { 5.724 }

staticconstexprprivate

Mass of the 1+ resonance for the parametrization of the vector FF.

Definition at line 99 of file EvtBCLFF.hh.

---

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

• EvtGenModels/EvtBCLFF.hh
• src/EvtGenModels/EvtBCLFF.cpp