genie::RSHelicityAmpl Class Reference

A class holding the Rein-Sehgal's helicity amplitudes. More...

#include <RSHelicityAmpl.h>

Public Member Functions
	RSHelicityAmpl ()
	RSHelicityAmpl (const RSHelicityAmpl &hamp)
	~RSHelicityAmpl ()
double	AmpMinus1 (void) const
	return helicity amplitude More...
double	AmpPlus1 (void) const
double	AmpMinus3 (void) const
double	AmpPlus3 (void) const
double	Amp0Minus (void) const
double	Amp0Plus (void) const
double	Amp2Minus1 (void) const
	return |helicity amplitude|^2 More...
double	Amp2Plus1 (void) const
double	Amp2Minus3 (void) const
double	Amp2Plus3 (void) const
double	Amp20Minus (void) const
double	Amp20Plus (void) const
void	Print (ostream &stream) const

Private Member Functions
void	Init (void)

Private Attributes
double	fMinus1
double	fPlus1
double	fMinus3
double	fPlus3
double	f0Minus
double	f0Plus

Friends
class	RSHelicityAmplModelCC
class	RSHelicityAmplModelNCp
class	RSHelicityAmplModelNCn
class	RSHelicityAmplModelEMp
class	RSHelicityAmplModelEMn
ostream &	operator<< (ostream &stream, const RSHelicityAmpl &hamp)

Detailed Description

A class holding the Rein-Sehgal's helicity amplitudes.

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 RSHelicityAmplModelI interface, that it finds attached to itself.

Author

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

May 03, 2004

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

Definition at line 40 of file RSHelicityAmpl.h.

Constructor & Destructor Documentation

RSHelicityAmpl::RSHelicityAmpl

(

)

Definition at line 25 of file RSHelicityAmpl.cxx.

{
  this->Init();
}

RSHelicityAmpl::RSHelicityAmpl

(

const RSHelicityAmpl &

hamp

)

Definition at line 30 of file RSHelicityAmpl.cxx.

{
  fMinus1 = hamp.AmpMinus1();
  fPlus1  = hamp.AmpPlus1();
  fMinus3 = hamp.AmpMinus3();
  fPlus3  = hamp.AmpPlus3();
  f0Minus = hamp.Amp0Minus();
  f0Plus  = hamp.Amp0Plus();
}

genie::RSHelicityAmpl::~RSHelicityAmpl ( )

inline

Definition at line 52 of file RSHelicityAmpl.h.

{ }

Member Function Documentation

double genie::RSHelicityAmpl::Amp0Minus ( void  ) const

inline

Definition at line 59 of file RSHelicityAmpl.h.

{ return f0Minus; } /* f(0-) */

double genie::RSHelicityAmpl::Amp0Plus ( void  ) const

inline

Definition at line 60 of file RSHelicityAmpl.h.

{ return f0Plus;  } /* f(0+) */

double genie::RSHelicityAmpl::Amp20Minus ( void  ) const

inline

Definition at line 67 of file RSHelicityAmpl.h.

{ return TMath::Power(f0Minus, 2.); } /* |f(0-)|^2 */

double genie::RSHelicityAmpl::Amp20Plus ( void  ) const

inline

Definition at line 68 of file RSHelicityAmpl.h.

{ return TMath::Power(f0Plus,  2.); } /* |f(0+)|^2 */

double genie::RSHelicityAmpl::Amp2Minus1 ( void  ) const

inline

return |helicity amplitude|^2

Definition at line 63 of file RSHelicityAmpl.h.

{ return TMath::Power(fMinus1, 2.); } /* |f(-1)|^2 */

double genie::RSHelicityAmpl::Amp2Minus3 ( void  ) const

inline

Definition at line 65 of file RSHelicityAmpl.h.

{ return TMath::Power(fMinus3, 2.); } /* |f(-3)|^2 */

double genie::RSHelicityAmpl::Amp2Plus1 ( void  ) const

inline

Definition at line 64 of file RSHelicityAmpl.h.

{ return TMath::Power(fPlus1,  2.); } /* |f(+1)|^2 */

double genie::RSHelicityAmpl::Amp2Plus3 ( void  ) const

inline

Definition at line 66 of file RSHelicityAmpl.h.

{ return TMath::Power(fPlus3,  2.); } /* |f(+3)|^2 */

double genie::RSHelicityAmpl::AmpMinus1 ( void  ) const

inline

return helicity amplitude

Definition at line 55 of file RSHelicityAmpl.h.

{ return fMinus1; } /* f(-1) */

double genie::RSHelicityAmpl::AmpMinus3 ( void  ) const

inline

Definition at line 57 of file RSHelicityAmpl.h.

{ return fMinus3; } /* f(-3) */

double genie::RSHelicityAmpl::AmpPlus1 ( void  ) const

inline

Definition at line 56 of file RSHelicityAmpl.h.

{ return fPlus1;  } /* f(+1) */

double genie::RSHelicityAmpl::AmpPlus3 ( void  ) const

inline

Definition at line 58 of file RSHelicityAmpl.h.

{ return fPlus3;  } /* f(+3) */

void RSHelicityAmpl::Init ( void  )

private

Definition at line 51 of file RSHelicityAmpl.cxx.

{
  fMinus1 = 0.0;
  fPlus1  = 0.0;
  fMinus3 = 0.0;
  fPlus3  = 0.0;
  f0Minus = 0.0;
  f0Plus  = 0.0;
}

void RSHelicityAmpl::Print

(

ostream &

stream

)

const

Definition at line 40 of file RSHelicityAmpl.cxx.

{
  stream << endl;
  stream << " f(-1) = " << fMinus1 << endl;
  stream << " f(+1) = " << fPlus1  << endl;
  stream << " f(-3) = " << fMinus3 << endl;
  stream << " f(+3) = " << fPlus3  << endl;
  stream << " f(0-) = " << f0Minus << endl;
  stream << " f(0+) = " << f0Plus  << endl;
}

Friends And Related Function Documentation

ostream& operator<< ( ostream &  stream, const RSHelicityAmpl &  hamp  )

friend

Definition at line 18 of file RSHelicityAmpl.cxx.

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

friend class RSHelicityAmplModelCC

friend

Definition at line 42 of file RSHelicityAmpl.h.

friend class RSHelicityAmplModelEMn

friend

Definition at line 46 of file RSHelicityAmpl.h.

friend class RSHelicityAmplModelEMp

friend

Definition at line 45 of file RSHelicityAmpl.h.

friend class RSHelicityAmplModelNCn

friend

Definition at line 44 of file RSHelicityAmpl.h.

friend class RSHelicityAmplModelNCp

friend

Definition at line 43 of file RSHelicityAmpl.h.

Member Data Documentation

double genie::RSHelicityAmpl::f0Minus

private

Definition at line 82 of file RSHelicityAmpl.h.

double genie::RSHelicityAmpl::f0Plus

private

Definition at line 83 of file RSHelicityAmpl.h.

double genie::RSHelicityAmpl::fMinus1

private

Definition at line 78 of file RSHelicityAmpl.h.

double genie::RSHelicityAmpl::fMinus3

private

Definition at line 80 of file RSHelicityAmpl.h.

double genie::RSHelicityAmpl::fPlus1

private

Definition at line 79 of file RSHelicityAmpl.h.

double genie::RSHelicityAmpl::fPlus3

private

Definition at line 81 of file RSHelicityAmpl.h.

---

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

• Generator/src/Physics/Resonance/XSection/RSHelicityAmpl.h
• Generator/src/Physics/Resonance/XSection/RSHelicityAmpl.cxx