EvtHQET2FF Class Reference

#include <EvtHQET2FF.hh>

Inheritance diagram for EvtHQET2FF:

Public Member Functions
	EvtHQET2FF (double hqetrho2, double hqetha1_1, double hqetr1_1, double hqetr2_1)
	EvtHQET2FF (double hqetrho2, double hqetv1_1)
void	getvectorff (EvtId parent, EvtId daught, double t, double mass, double *a1f, double *a2f, double *vf, double *a0f)
void	getscalarff (EvtId parent, EvtId daught, double t, double mass, double *f0p, double *f0m)
	EvtHQET2FF (double hqetrho2, double hqetha1_1, double hqetr1_1, double hqetr2_1)
	EvtHQET2FF (double hqetrho2, double hqetv1_1)
void	getvectorff (EvtId parent, EvtId daught, double t, double mass, double *a1f, double *a2f, double *vf, double *a0f)
void	getscalarff (EvtId parent, EvtId daught, double t, double mass, double *f0p, double *f0m)
Public Member Functions inherited from EvtSemiLeptonicFF
virtual void	getscalarff (EvtId parent, EvtId daught, double t, double mass, double *fpf, double *fmf)
virtual void	getvectorff (EvtId parent, EvtId daught, double t, double mass, double *a1f, double *a2f, double *vf, double *a0f)
virtual void	gettensorff (EvtId parent, EvtId daught, double t, double mass, double *a1f, double *a2f, double *vf, double *a0f)
virtual void	getbaryonff (EvtId parent, EvtId daught, double t, double m_meson, double *f1v, double *f1a, double *f2v, double *f2a)
virtual void	getscalarff (EvtId parent, EvtId daught, double t, double mass, double *fpf, double *fmf)
virtual void	getvectorff (EvtId parent, EvtId daught, double t, double mass, double *a1f, double *a2f, double *vf, double *a0f)
virtual void	gettensorff (EvtId parent, EvtId daught, double t, double mass, double *a1f, double *a2f, double *vf, double *a0f)
virtual void	getbaryonff (EvtId parent, EvtId daught, double t, double m_meson, double *f1v, double *f1a, double *f2v, double *f2a)

Detailed Description

Definition at line 20 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtHQET2FF.hh.

Constructor & Destructor Documentation

EvtHQET2FF() [1/4]

EvtHQET2FF::EvtHQET2FF	(	double	hqetrho2,
		double	hqetha1_1,
		double	hqetr1_1,
		double	hqetr2_1
	)

Definition at line 25 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtHQET2FF.cc.

                                                                                           {
 
  rho2 = hqetrho2;
  r1_1 = hqetr1_1;
  r2_1 = hqetr2_1;
  ha1_1 = hqetha1_1;
 
  return;
}

EvtHQET2FF() [2/4]

EvtHQET2FF::EvtHQET2FF	(	double	hqetrho2,
		double	hqetv1_1
	)

Definition at line 35 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtHQET2FF.cc.

                                                       {
 
  rho2 = hqetrho2;
  v1_1 = hqetv1_1;
 
  return;
}

EvtHQET2FF() [3/4]

EvtHQET2FF::EvtHQET2FF	(	double	hqetrho2,
		double	hqetha1_1,
		double	hqetr1_1,
		double	hqetr2_1
	)

EvtHQET2FF() [4/4]

EvtHQET2FF::EvtHQET2FF	(	double	hqetrho2,
		double	hqetv1_1
	)

Member Function Documentation

getscalarff() [1/2]

void EvtHQET2FF::getscalarff ( EvtId  parent, EvtId  daught, double  t, double  mass, double *  f0p, double *  f0m  )

virtual

Reimplemented from EvtSemiLeptonicFF.

Definition at line 44 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtHQET2FF.cc.

                                                                 {
 
 
  double mb=EvtPDL::getMeanMass(parent);
  double w = ((mb*mb)+(mass*mass)-t)/(2.0*mb*mass);
 
// Form factors have a general form, with parameters passed in
// from the arguements.
 
  // Use disparsion relation parametrization from 
  // I.Caprini, L.Lelluch, M.Neubert, Nucl. Phys. B 530,153(1998)
  const double z = (sqrt(w+1)-sqrt(2.))/(sqrt(w+1)+sqrt(2.));
  double v1 = v1_1*(1.- 8.*rho2*z + (51.*rho2-10.)*z*z - (252.*rho2-84.)*z*z*z)
;
 
  *f0p=v1;
  *f0m = 0.0;
 
  return;
 }

getscalarff() [2/2]

void EvtHQET2FF::getscalarff ( EvtId  parent, EvtId  daught, double  t, double  mass, double *  f0p, double *  f0m  )

virtual

Reimplemented from EvtSemiLeptonicFF.

getvectorff() [1/2]

void EvtHQET2FF::getvectorff ( EvtId  parent, EvtId  daught, double  t, double  mass, double *  a1f, double *  a2f, double *  vf, double *  a0f  )

virtual

Reimplemented from EvtSemiLeptonicFF.

Definition at line 66 of file bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtHQET2FF.cc.

                                                      {
 
 
  double mb=EvtPDL::getMeanMass(parent);
  double w = ((mb*mb)+(mass*mass)-t)/(2.0*mb*mass);
 
// Form factors have a general form, with parameters passed in
// from the arguements.
 
  double rstar = ( 2.0*sqrt(mb*mass))/(mb+mass);
 
  // Use disparsion relation parametrization from 
  // I.Caprini, L.Lelluch, M.Neubert, Nucl. Phys. B 530,153(1998)
  const double z = (sqrt(w+1)-sqrt(2.))/(sqrt(w+1)+sqrt(2.));
  double ha1 =ha1_1*(1.- 8.*rho2*z + (53.*rho2-15.)*z*z - (231.*rho2-91.)*z*z*z);
  double r1 = r1_1-0.12*(w-1)+0.05*(w-1)*(w-1);
  double r2 = r2_1+0.11*(w-1)-0.06*(w-1)*(w-1);
;
 
  *a1f = (1.0 - (t/((mb+mass)*(mb+mass))))*ha1;
  *a1f = (*a1f)/rstar;
  *a2f = (r2/rstar)*ha1;
  *vf = (r1/rstar)*ha1;
  *a0f = 0.0;
 
  return;
 }

getvectorff() [2/2]

void EvtHQET2FF::getvectorff ( EvtId  parent, EvtId  daught, double  t, double  mass, double *  a1f, double *  a2f, double *  vf, double *  a0f  )

virtual

Reimplemented from EvtSemiLeptonicFF.

---

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

• bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtHQET2FF.hh
• BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtHQET2FF.hh
• bak-BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtHQET2FF.cc
• BesEvtGen-00-04-08/src/EvtGen/EvtGenModels/EvtHQET2FF.cc