EvtbTosllAliFF Class Reference

#include <EvtbTosllAliFF.hh>

Inheritance diagram for EvtbTosllAliFF:

List of all members.

Public Member Functions
	EvtbTosllAliFF ()
void	getScalarFF (EvtId parent, EvtId daught, double t, double mass, double &fp, double &f0, double &ft)
void	getVectorFF (EvtId parent, EvtId daught, double t, double mass, double &a1, double &a2, double &a0, double &v, double &t1, double &t2, double &t3)

---

Detailed Description

Definition at line 29 of file EvtbTosllAliFF.hh.

---

Constructor & Destructor Documentation

EvtbTosllAliFF::EvtbTosllAliFF

(

)

Definition at line 27 of file EvtbTosllAliFF.cc.

{}

---

Member Function Documentation

void EvtbTosllAliFF::getScalarFF	(	EvtId	parent,
		EvtId	daught,
		double	t,
		double	mass,
		double &	fp,
		double &	f0,
		double &	ft
	)			[virtual]

Reimplemented from EvtbTosllFF.

Definition at line 30 of file EvtbTosllAliFF.cc.

References exp(), and EvtPDL::getMeanMass().

                                                                   {

  double m=EvtPDL::getMeanMass(parent);
  //double md=EvtPDL::getMeanMass(daught);
  
  double shat=t/(m*m);
  double shat2=shat*shat;
  double shat3=shat2*shat;

  fp = 0.278*exp(1.568*shat+0.470*shat2+0.885*shat3);
  f0 = 0.278*exp(0.740*shat+0.080*shat2+0.425*shat3);
  ft = 0.300*exp(1.600*shat+0.501*shat2+0.796*shat3);
  
}

void EvtbTosllAliFF::getVectorFF	(	EvtId	parent,
		EvtId	daught,
		double	t,
		double	mass,
		double &	a1,
		double &	a2,
		double &	a0,
		double &	v,
		double &	t1,
		double &	t2,
		double &	t3
	)			[virtual]

Reimplemented from EvtbTosllFF.

Definition at line 48 of file EvtbTosllAliFF.cc.

References exp(), and EvtPDL::getMeanMass().

                                                                      {

  
  double m=EvtPDL::getMeanMass(parent);
  //double md=EvtPDL::getMeanMass(daught);
  
  double shat=t/(m*m);
  double shat2=shat*shat;

  //this is Ali 'minimum allowed form factors'
  a1=0.294*exp(0.656*shat+0.456*shat2);
  a2=0.246*exp(1.237*shat+0.822*shat2);
  a0=0.412*exp(1.543*shat+0.954*shat2);
  v=0.399*exp(1.537*shat+1.123*shat2);
    
  t1=0.334*exp(1.575*shat+1.140*shat2);
  t2=0.334*exp(0.562*shat+0.481*shat2);
  t3=0.234*exp(1.230*shat+1.089*shat2);

}

---