genie::QELFormFactors Class Reference

A class holding Quasi Elastic (QEL) Form Factors. More...

#include <QELFormFactors.h>

Public Member Functions
	QELFormFactors ()
	QELFormFactors (const QELFormFactors &form_factors)
virtual	~QELFormFactors ()
void	SetModel (const QELFormFactorsModelI *model)
	Attach an algorithm. More...
void	Calculate (const Interaction *interaction)
	Compute the form factors for the input interaction using the attached model. More...
double	F1V (void) const
	Get the computed form factor F1V. More...
double	xiF2V (void) const
	Get the computed form factor xi*F2V. More...
double	FA (void) const
	Get the computed form factor FA. More...
double	Fp (void) const
	Get the computed form factor Fp. More...
const QELFormFactorsModelI *	Model (void) const
	Get the attached model. More...
void	Reset (Option_t *opt="")
void	Copy (const QELFormFactors &ff)
bool	Compare (const QELFormFactors &ff) const
void	Print (ostream &stream) const
bool	operator== (const QELFormFactors &ff) const
QELFormFactors &	operator= (const QELFormFactors &ff)

Private Attributes
double	fF1V
double	fxiF2V
double	fFA
double	fFp
const QELFormFactorsModelI *	fModel

Friends
ostream &	operator<< (ostream &stream, const QELFormFactors &ff)

Detailed Description

A class holding Quasi Elastic (QEL) Form Factors.

This class is using the Strategy Pattern.
It can accept requests to calculate itself, for a given interaction, that it then delegates to the algorithmic object, implementing the QELFormFactorsModelI interface, that it finds attached to itself.

Author

Costas Andreopoulos <constantinos.andreopoulos cern.ch> University of Liverpool & STFC Rutherford Appleton Laboratory

April 20, 2004

Copyright (c) 2003-2020, The GENIE Collaboration For the full text of the license visit http://copyright.genie-mc.org

Definition at line 38 of file QELFormFactors.h.

Constructor & Destructor Documentation

QELFormFactors::QELFormFactors

(

)

Definition at line 33 of file QELFormFactors.cxx.

{
  this->Reset();
}

QELFormFactors::QELFormFactors

(

const QELFormFactors &

form_factors

)

Definition at line 38 of file QELFormFactors.cxx.

{
  this->Copy(form_factors);
}

virtual genie::QELFormFactors::~QELFormFactors ( )

inlinevirtual

Definition at line 44 of file QELFormFactors.h.

{ }

Member Function Documentation

void QELFormFactors::Calculate

(

const Interaction *

interaction

)

Compute the form factors for the input interaction using the attached model.

Definition at line 49 of file QELFormFactors.cxx.

{
  if(!this->fModel) {
    LOG("QELFF",pERROR)
             << "No QELFormFactorsModelI attached. Can not calculate FF's";
    this->Reset("D");
    return;
  }

  this -> fF1V   = fModel -> F1V   (interaction);
  this -> fxiF2V = fModel -> xiF2V (interaction);
  this -> fFA    = fModel -> FA    (interaction);
  this -> fFp    = fModel -> Fp    (interaction);
}

bool QELFormFactors::Compare

(

const QELFormFactors &

ff

)

const

Definition at line 88 of file QELFormFactors.cxx.

{
  bool equal =
          math::AreEqual(this->fF1V,   ff.fF1V)   &&
          math::AreEqual(this->fxiF2V, ff.fxiF2V) &&
          math::AreEqual(this->fFA,    ff.fFA)    &&
          math::AreEqual(this->fFp,    ff.fFp);
  return equal;
}

void QELFormFactors::Copy

(

const QELFormFactors &

ff

)

Definition at line 78 of file QELFormFactors.cxx.

{
  this->fModel = ff.fModel;

  this->fF1V   = ff.fF1V;
  this->fxiF2V = ff.fxiF2V;
  this->fFA    = ff.fFA;
  this->fFp    = ff.fFp;
}

double genie::QELFormFactors::F1V ( void  ) const

inline

Get the computed form factor F1V.

Definition at line 53 of file QELFormFactors.h.

{ return fF1V;   }

double genie::QELFormFactors::FA ( void  ) const

inline

Get the computed form factor FA.

Definition at line 59 of file QELFormFactors.h.

{ return fFA;    }

double genie::QELFormFactors::Fp ( void  ) const

inline

Get the computed form factor Fp.

Definition at line 62 of file QELFormFactors.h.

{ return fFp;    }

const QELFormFactorsModelI* genie::QELFormFactors::Model ( void  ) const

inline

Get the attached model.

Definition at line 65 of file QELFormFactors.h.

{return fModel;}

QELFormFactors & QELFormFactors::operator=

(

const QELFormFactors &

ff

)

Definition at line 112 of file QELFormFactors.cxx.

{
  this->Copy(ff);
  return (*this);
}

bool QELFormFactors::operator==

(

const QELFormFactors &

ff

)

const

Definition at line 107 of file QELFormFactors.cxx.

{
  return this->Compare(ff);
}

void QELFormFactors::Print

(

ostream &

stream

)

const

Definition at line 98 of file QELFormFactors.cxx.

{
  stream << endl;
  stream << "F1V    = " << this->fF1V   << endl;
  stream << "xi*F2V = " << this->fxiF2V << endl;
  stream << "FA     = " << this->fFA    << endl;
  stream << "Fp     = " << this->fFp    << endl;
}

void QELFormFactors::Reset

(

Option_t *

opt = ""

)

Definition at line 64 of file QELFormFactors.cxx.

{
// Reset the QELFormFactors object (data & attached model). If the input
// option = D it resets the data only and not the attached model.

  this->fF1V   = 0;
  this->fxiF2V = 0;
  this->fFA    = 0;
  this->fFp    = 0;

  string option(opt);
  if(option.find("D") == string::npos) {this->fModel = 0;}
}

void QELFormFactors::SetModel

(

const QELFormFactorsModelI *

model

)

Attach an algorithm.

Definition at line 43 of file QELFormFactors.cxx.

{
  this->Reset();
  this->fModel = model;
}

double genie::QELFormFactors::xiF2V ( void  ) const

inline

Get the computed form factor xi*F2V.

Definition at line 56 of file QELFormFactors.h.

{ return fxiF2V; }

Friends And Related Function Documentation

ostream& operator<< ( ostream &  stream, const QELFormFactors &  ff  )

friend

Definition at line 26 of file QELFormFactors.cxx.

  {
     ff.Print(stream);
     return stream;
  }

Member Data Documentation

double genie::QELFormFactors::fF1V

private

Definition at line 78 of file QELFormFactors.h.

double genie::QELFormFactors::fFA

private

Definition at line 80 of file QELFormFactors.h.

double genie::QELFormFactors::fFp

private

Definition at line 81 of file QELFormFactors.h.

const QELFormFactorsModelI* genie::QELFormFactors::fModel

private

Definition at line 83 of file QELFormFactors.h.

double genie::QELFormFactors::fxiF2V

private

Definition at line 79 of file QELFormFactors.h.

---

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

• Generator/src/Physics/QuasiElastic/XSection/QELFormFactors.h
• Generator/src/Physics/QuasiElastic/XSection/QELFormFactors.cxx