EvtBGLFF Class Reference

#include <EvtGenModels/EvtBGLFF.hh>

Inheritance diagram for EvtBGLFF:

Public Member Functions
	EvtBGLFF (double bglap_0, double bglap_1, double bglap_2, double bglap_3, double bgla0_0, double bgla0_1, double bgla0_2, double bgla0_3)
	EvtBGLFF (double bgla_0, double bgla_1, double bglb_0, double bglb_1, double bglc_1, double bglc_2)
void	getscalarff (EvtId parent, EvtId daught, double t, double mass, double *fp, double *f0) override
void	getvectorff (EvtId parent, EvtId daught, double t, double mass, double *a1f, double *a2f, double *vf, double *a0f) override
void	gettensorff (EvtId, EvtId, double, double, double *, double *, double *, double *) override
void	getbaryonff (EvtId, EvtId, double, double, double *, double *, double *, double *) override
void	getdiracff (EvtId, EvtId, double, double, double *, double *, double *, double *, double *, double *) override
void	getraritaff (EvtId, EvtId, double, double, double *, double *, double *, double *, double *, double *, double *, double *) override
Public Member Functions inherited from EvtSemiLeptonicFF
virtual	~EvtSemiLeptonicFF ()

Private Attributes
double	m_ap_0 { 0 }
double	m_ap_1 { 0 }
double	m_ap_2 { 0 }
double	m_ap_3 { 0 }
double	m_a0_0 { 0 }
double	m_a0_1 { 0 }
double	m_a0_2 { 0 }
double	m_a0_3 { 0 }
double	m_a_0 { 0 }
double	m_a_1 { 0 }
double	m_b_0 { 0 }
double	m_b_1 { 0 }
double	m_c_1 { 0 }
double	m_c_2 { 0 }

Detailed Description

The class provides the form factors for semileptonic D and D* decays with full mass dependence

Definition at line 30 of file EvtBGLFF.hh.

Constructor & Destructor Documentation

EvtBGLFF() [1/2]

EvtBGLFF::EvtBGLFF	(	double	bglap_0,
		double	bglap_1,
		double	bglap_2,
		double	bglap_3,
		double	bgla0_0,
		double	bgla0_1,
		double	bgla0_2,
		double	bgla0_3 )

Default constructor

Definition at line 31 of file EvtBGLFF.cpp.

EvtBGLFF() [2/2]

EvtBGLFF::EvtBGLFF	(	double	bgla_0,
		double	bgla_1,
		double	bglb_0,
		double	bglb_1,
		double	bglc_1,
		double	bglc_2 )

Default constructor

Definition at line 46 of file EvtBGLFF.cpp.

Member Function Documentation

getbaryonff()

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

overridevirtual

Returns baryon ffs

Implements EvtSemiLeptonicFF.

Definition at line 170 of file EvtBGLFF.cpp.

getdiracff()

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

overridevirtual

Returns dirac ffs

Implements EvtSemiLeptonicFF.

Definition at line 178 of file EvtBGLFF.cpp.

getraritaff()

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

overridevirtual

Returns tarita ffs

Implements EvtSemiLeptonicFF.

Definition at line 186 of file EvtBGLFF.cpp.

getscalarff()

void EvtBGLFF::getscalarff ( EvtId parent, EvtId daught, double t, double mass, double * fp, double * f0 )

overridevirtual

Returns scalar ffs

Implements EvtSemiLeptonicFF.

Definition at line 61 of file EvtBGLFF.cpp.

gettensorff()

void EvtBGLFF::gettensorff ( EvtId , EvtId , double , double , double * , double * , double * , double *  )

overridevirtual

Returns tensor ffs

Implements EvtSemiLeptonicFF.

Definition at line 162 of file EvtBGLFF.cpp.

getvectorff()

void EvtBGLFF::getvectorff ( EvtId parent, EvtId daught, double t, double mass, double * a1f, double * a2f, double * vf, double * a0f )

overridevirtual

Returns vector ffs

Implements EvtSemiLeptonicFF.

Definition at line 91 of file EvtBGLFF.cpp.

Member Data Documentation

m_a0_0

double EvtBGLFF::m_a0_0 { 0 }

private

0th-order z expansion coeffieient for scalar form factor f_0

Definition at line 108 of file EvtBGLFF.hh.

m_a0_1

double EvtBGLFF::m_a0_1 { 0 }

private

1st-order z expansion coeffieient for scalar form factor f_0

Definition at line 111 of file EvtBGLFF.hh.

m_a0_2

double EvtBGLFF::m_a0_2 { 0 }

private

2nd-order z expansion coeffieient for scalar form factor f_0

Definition at line 114 of file EvtBGLFF.hh.

m_a0_3

double EvtBGLFF::m_a0_3 { 0 }

private

3rd-order z expansion coeffieient for scalar form factor f_0

Definition at line 117 of file EvtBGLFF.hh.

m_a_0

double EvtBGLFF::m_a_0 { 0 }

private

B->D*lnu z expansion coefficients 0th-order z expansion coefficient for form factor g

Definition at line 122 of file EvtBGLFF.hh.

m_a_1

double EvtBGLFF::m_a_1 { 0 }

private

1st-order z expansion coefficient for form factor g

Definition at line 125 of file EvtBGLFF.hh.

m_ap_0

double EvtBGLFF::m_ap_0 { 0 }

private

B -> Dlnu: ai_n (i = p —vector, 0 —scalar; n = 0,1,2,3) are free coefficients of z expansion in dispersion relation parametrization from C.G.Boyd, B.Grinstein, R.F.Lebed, Phys. Rev. Lett. 74,4603(1995)

Chosen the order of series N=3, i.e. a_0 + a_1 * z + a_2 * z^2 + a_3 * z^3

Fitted values cited from R.Glattauer, etc. (Belle) Phys. Rev. D 93,032006 (2016).

B -> D*lnu (l=e, mu): a_n, b_n (n = 0,1) and c_n (n = 0,1,2) are free coefficients of z expansion parametrization from C.G.Boyd, B.Grinstein and R.F.Lebed, Phys. Rev. D 56,6895(1997) & B.Grinstein, A.Kobach, Phys. Lett. B 771(2017)359-364

For the expansion of form factors g and f, the order of series N=1, i.e. a_0 + a_1*z For the expansion of form factors F1, the order of series N=2, i.e. c_0 + c_1 * z + c_2 * z**2 (g, f and F1 are the sub-terms of helicity amplitude)

Fitted values are taken from a private discussion of Florian Bernlochner based on B.Grinstein and A.Kobach, Phys. Lett. B 771(2017)359-364

It should not be used to generate D* with tau, due to the lack of fitted parameters in a0f amplitude. 0th-order z expansion coeffieient for vector form factor: f_+

Definition at line 96 of file EvtBGLFF.hh.

m_ap_1

double EvtBGLFF::m_ap_1 { 0 }

private

1st-order z expansion coeffieient for vector form factor: f_+

Definition at line 99 of file EvtBGLFF.hh.

m_ap_2

double EvtBGLFF::m_ap_2 { 0 }

private

2nd-order z expansion coeffieient for vector form factor: f_+

Definition at line 102 of file EvtBGLFF.hh.

m_ap_3

double EvtBGLFF::m_ap_3 { 0 }

private

3rd-order z expansion coeffieient for vector form factor: f_+

Definition at line 105 of file EvtBGLFF.hh.

m_b_0

double EvtBGLFF::m_b_0 { 0 }

private

0th-order z expansion coefficient for form factor f

Definition at line 128 of file EvtBGLFF.hh.

m_b_1

double EvtBGLFF::m_b_1 { 0 }

private

1st-order z expansion coefficient for form factor f

Definition at line 131 of file EvtBGLFF.hh.

m_c_1

double EvtBGLFF::m_c_1 { 0 }

private

1st-order z expansion coefficient for form factor F1

Definition at line 134 of file EvtBGLFF.hh.

m_c_2

double EvtBGLFF::m_c_2 { 0 }

private

2nd-order z expansion coefficient for form factor F1

Definition at line 137 of file EvtBGLFF.hh.

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

• EvtGenModels/EvtBGLFF.hh
• src/EvtGenModels/EvtBGLFF.cpp