genie::RSHelicityAmplModelEMn Class Reference

The Helicity Amplitudes, for all baryon resonances, for Electro- Magnetic (EM) interactions on free neutrons, as computed in the Rein-Sehgal's paper. More...

#include <RSHelicityAmplModelEMn.h>

Inheritance diagram for genie::RSHelicityAmplModelEMn:

Public Member Functions
	RSHelicityAmplModelEMn ()
	RSHelicityAmplModelEMn (string config)
virtual	~RSHelicityAmplModelEMn ()
const RSHelicityAmpl &	Compute (Resonance_t res, const FKR &fkr) const
Public Member Functions inherited from genie::RSHelicityAmplModelI
virtual	~RSHelicityAmplModelI ()
Public Member Functions inherited from genie::Algorithm
virtual	~Algorithm ()
virtual void	Configure (const Registry &config)
virtual void	Configure (string config)
virtual void	FindConfig (void)
virtual const Registry &	GetConfig (void) const
Registry *	GetOwnedConfig (void)
virtual const AlgId &	Id (void) const
	Get algorithm ID. More...
virtual AlgStatus_t	GetStatus (void) const
	Get algorithm status. More...
virtual bool	AllowReconfig (void) const
virtual AlgCmp_t	Compare (const Algorithm *alg) const
	Compare with input algorithm. More...
virtual void	SetId (const AlgId &id)
	Set algorithm ID. More...
virtual void	SetId (string name, string config)
const Algorithm *	SubAlg (const RgKey &registry_key) const
void	AdoptConfig (void)
void	AdoptSubstructure (void)
virtual void	Print (ostream &stream) const
	Print algorithm info. More...

Private Attributes
RSHelicityAmpl	fAmpl

Additional Inherited Members
Static Public Member Functions inherited from genie::Algorithm
static string	BuildParamVectKey (const std::string &comm_name, unsigned int i)
static string	BuildParamVectSizeKey (const std::string &comm_name)
Protected Member Functions inherited from genie::RSHelicityAmplModelI
	RSHelicityAmplModelI ()
	RSHelicityAmplModelI (string name)
	RSHelicityAmplModelI (string name, string config)
Protected Member Functions inherited from genie::Algorithm
	Algorithm ()
	Algorithm (string name)
	Algorithm (string name, string config)
void	Initialize (void)
void	DeleteConfig (void)
void	DeleteSubstructure (void)
Registry *	ExtractLocalConfig (const Registry &in) const
Registry *	ExtractLowerConfig (const Registry &in, const string &alg_key) const
	Split an incoming configuration Registry into a block valid for the sub-algo identified by alg_key. More...
template<class T >
bool	GetParam (const RgKey &name, T &p, bool is_top_call=true) const
template<class T >
bool	GetParamDef (const RgKey &name, T &p, const T &def) const
template<class T >
int	GetParamVect (const std::string &comm_name, std::vector< T > &v, bool is_top_call=true) const
	Handle to load vectors of parameters. More...
int	GetParamVectKeys (const std::string &comm_name, std::vector< RgKey > &k, bool is_top_call=true) const
int	AddTopRegistry (Registry *rp, bool owns=true)
	add registry with top priority, also update ownership More...
int	AddLowRegistry (Registry *rp, bool owns=true)
	add registry with lowest priority, also update ownership More...
int	MergeTopRegistry (const Registry &r)
int	AddTopRegisties (const vector< Registry * > &rs, bool owns=false)
	Add registries with top priority, also udated Ownerships. More...
Protected Attributes inherited from genie::Algorithm
bool	fAllowReconfig
bool	fOwnsSubstruc
	true if it owns its substructure (sub-algs,...) More...
AlgId	fID
	algorithm name and configuration set More...
vector< Registry * >	fConfVect
vector< bool >	fOwnerships
	ownership for every registry in fConfVect More...
AlgStatus_t	fStatus
	algorithm execution status More...
AlgMap *	fOwnedSubAlgMp
	local pool for owned sub-algs (taken out of the factory pool) More...

Detailed Description

The Helicity Amplitudes, for all baryon resonances, for Electro- Magnetic (EM) interactions on free neutrons, as computed in the Rein-Sehgal's paper.

Concrete implementation of the RSHelicityAmplModelI interface.

Author

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

March 30, 2005

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

Definition at line 29 of file RSHelicityAmplModelEMn.h.

Constructor & Destructor Documentation

RSHelicityAmplModelEMn::RSHelicityAmplModelEMn

(

)

Definition at line 22 of file RSHelicityAmplModelEMn.cxx.

                                               :
RSHelicityAmplModelI("genie::RSHelicityAmplModelEMn")
{

}

RSHelicityAmplModelEMn::RSHelicityAmplModelEMn

(

string

config

)

Definition at line 28 of file RSHelicityAmplModelEMn.cxx.

                                                            :
RSHelicityAmplModelI("genie::RSHelicityAmplModelEMn", config)
{

}

RSHelicityAmplModelEMn::~RSHelicityAmplModelEMn ( )

virtual

Definition at line 34 of file RSHelicityAmplModelEMn.cxx.

{

}

Member Function Documentation

const RSHelicityAmpl & RSHelicityAmplModelEMn::Compute ( Resonance_t  res, const FKR &  fkr  ) const

virtual

Implements genie::RSHelicityAmplModelI.

Definition at line 40 of file RSHelicityAmplModelEMn.cxx.

{
  switch(res) {

   case (kP33_1232) :
   {
     fAmpl.fPlus1  =  kSqrt2 * fkr.R;
     fAmpl.fPlus3  =  kSqrt6 * fkr.R;
     fAmpl.fMinus1 = -1 * fAmpl.fPlus1;
     fAmpl.fMinus3 = -1 * fAmpl.fPlus3;
     fAmpl.f0Minus =  0.;
     fAmpl.f0Plus  =  0.;
     break;
   }
   case (kS11_1535) :
   {
     fAmpl.fPlus1  =  kSqrt3   * fkr.T + k1_Sqrt6 * fkr.Lamda * fkr.R;
     fAmpl.f0Minus =  kSqrt3_2 * fkr.Lamda * fkr.S;
     fAmpl.fMinus1 = -1 * fAmpl.fPlus1;
     fAmpl.f0Plus  = -1 * fAmpl.f0Minus;
     fAmpl.fMinus3 =  0.;
     fAmpl.fPlus3  =  0.;

     break;
   }
   case (kD13_1520) :
   {
     fAmpl.fMinus1 = -kSqrt3_2 * fkr.T + k1_Sqrt3 * fkr.Lamda * fkr.R;
     fAmpl.fMinus3 = -k3_Sqrt2 * fkr.T;
     fAmpl.f0Minus =  kSqrt3 * fkr.Lamda * fkr.S;
     fAmpl.fPlus1  =  fAmpl.fMinus1;
     fAmpl.fPlus3  =  fAmpl.fMinus3;
     fAmpl.f0Plus  =  fAmpl.f0Minus;
     break;
   }
   case (kS11_1650) :
   {
     fAmpl.fPlus1  =  k1_Sqrt6 * fkr.Lamda * fkr.R;
     fAmpl.fMinus1 = -1 * fAmpl.fPlus1;
     fAmpl.fMinus3 =  0.;
     fAmpl.fPlus3  =  0.;
     fAmpl.f0Minus =  0.;
     fAmpl.f0Plus  =  0.;
     break;
   }
   case (kD13_1700) :
   {
     double LR = fkr.Lamda * fkr.R;

     fAmpl.fMinus1 = -(1./kSqrt30) * LR;
     fAmpl.fMinus3 = -(3./kSqrt10) * LR;
     fAmpl.fPlus1  =  fAmpl.fMinus1;
     fAmpl.fPlus3  =  fAmpl.fMinus3;
     fAmpl.f0Minus =  0.;
     fAmpl.f0Plus  =  0.;
     break;
   }
   case (kD15_1675) :
   {
     double LR = fkr.Lamda * fkr.R;

     fAmpl.fMinus1 = kSqrt3_10 * LR;
     fAmpl.fMinus3 = kSqrt3_5  * LR;
     fAmpl.fPlus1  = -1 * fAmpl.fMinus1;
     fAmpl.fPlus3  = -1 * fAmpl.fMinus3;
     fAmpl.f0Minus =  0.;
     fAmpl.f0Plus  =  0.;
     break;
   }
   case (kS31_1620) :
   {
     fAmpl.fMinus1 =  kSqrt3 * fkr.T - k1_Sqrt6 * fkr.Lamda * fkr.R;
     fAmpl.f0Minus = -kSqrt3_2 * fkr.Lamda * fkr.S;
     fAmpl.fPlus1  = -1. * fAmpl.fMinus1;
     fAmpl.f0Plus  = -1. * fAmpl.f0Minus;
     fAmpl.fMinus3 = 0.;
     fAmpl.fPlus3  = 0.;
     break;
   }
   case (kD33_1700) :
   {
     fAmpl.fMinus1 =  kSqrt3_2 * fkr.T + k1_Sqrt3 * fkr.Lamda * fkr.R;
     fAmpl.fMinus3 =  k3_Sqrt2 * fkr.T;
     fAmpl.f0Minus = -kSqrt3 * fkr.Lamda * fkr.S;
     fAmpl.fPlus1  =  fAmpl.fMinus1;
     fAmpl.fPlus3  =  fAmpl.fMinus3;
     fAmpl.f0Plus  =  fAmpl.f0Minus;
     break;
   }
   case (kP11_1440) :
   {
     fAmpl.fMinus1 = k1_Sqrt3 * TMath::Power(fkr.Lamda, 2) * fkr.R;
     fAmpl.fPlus1  = fAmpl.fMinus1;
     fAmpl.fMinus3 =  0.;
     fAmpl.fPlus3  =  0.;
     fAmpl.f0Minus =  0.;
     fAmpl.f0Plus  =  0.;
     break;
   }
   case (kP33_1600) :
   {
     double L2R  = TMath::Power(fkr.Lamda, 2) * fkr.R;

     fAmpl.fMinus1 = k1_Sqrt6 * L2R;
     fAmpl.fMinus3 = k1_Sqrt2 * L2R;
     fAmpl.fPlus1  = -1. * fAmpl.fMinus1;
     fAmpl.fPlus3  = -1. * fAmpl.fMinus3;
     fAmpl.f0Minus = 0.;
     fAmpl.f0Plus  = 0.;
     break;
   }
   case (kP13_1720) :
   {
     fAmpl.fMinus1 = k2_Sqrt15 * TMath::Power(fkr.Lamda, 2) * fkr.R;
     fAmpl.fPlus1  = -1 * fAmpl.fMinus1;
     fAmpl.fMinus3 =  0.;
     fAmpl.fPlus3  =  0.;
     fAmpl.f0Minus =  0.;
     fAmpl.f0Plus  =  0.;
     break;
   }
   case (kF15_1680) :
   {
     fAmpl.fMinus1 =  -kSqrt2_5 * TMath::Power(fkr.Lamda, 2) * fkr.R;
     fAmpl.fPlus1  =  fAmpl.fMinus1;
     fAmpl.fMinus3 =  0.;
     fAmpl.fPlus3  =  0.;
     fAmpl.f0Minus =  0.;
     fAmpl.f0Plus  =  0.;
     break;
   }
   case (kP31_1910) :
   {
     fAmpl.fMinus1 =  -k1_Sqrt15 * TMath::Power(fkr.Lamda, 2) * fkr.R;
     fAmpl.fPlus1  =  fAmpl.fMinus1;
     fAmpl.fMinus3 =  0.;
     fAmpl.fPlus3  =  0.;
     fAmpl.f0Minus =  0.;
     fAmpl.f0Plus  =  0.;
     break;
   }
   case (kP33_1920) :
   {
     double L2R  = TMath::Power(fkr.Lamda, 2) * fkr.R;

     fAmpl.fMinus1 =  k1_Sqrt15 * L2R;
     fAmpl.fMinus3 = -k1_Sqrt5  * L2R;
     fAmpl.fPlus1  = -1.* fAmpl.fMinus1;
     fAmpl.fPlus3  = -1.* fAmpl.fMinus3;
     fAmpl.f0Minus =  0.;
     fAmpl.f0Plus  =  0.;
     break;
   }
   case (kF35_1905) :
   {
     double L2R  = TMath::Power(fkr.Lamda, 2) * fkr.R;

     fAmpl.fMinus1 = k1_Sqrt35  * L2R;
     fAmpl.fMinus3 = kSqrt18_35 * L2R;
     fAmpl.fPlus1  = fAmpl.fMinus1;
     fAmpl.fPlus3  = fAmpl.fMinus3;
     fAmpl.f0Minus = 0.;
     fAmpl.f0Plus  = 0.;
     break;
   }
   case (kF37_1950) :
   {
     double L2R  = TMath::Power(fkr.Lamda, 2) * fkr.R;

     fAmpl.fMinus1 = -kSqrt6_35 * L2R;
     fAmpl.fMinus3 = -kSqrt2_7  * L2R;
     fAmpl.fPlus1  = -1. * fAmpl.fMinus1;
     fAmpl.fPlus3  = -1. * fAmpl.fMinus3;
     fAmpl.f0Minus = 0.;
     fAmpl.f0Plus  = 0.;
     break;
   }
   case (kP11_1710) :
   {
     double L2 = TMath::Power(fkr.Lamda, 2);

     fAmpl.fMinus1 = -k1_Sqrt24 * L2 * fkr.R;
     fAmpl.f0Minus = -kSqrt3_8  * L2 * fkr.S;
     fAmpl.fPlus1  = fAmpl.fMinus1;
     fAmpl.f0Plus  = fAmpl.f0Minus;
     fAmpl.fMinus3 = 0.;
     fAmpl.fPlus3  = 0.;

     break;
   }
   case (kF17_1970) :
   {
     double L2R = TMath::Power(fkr.Lamda, 2) * fkr.R;

     fAmpl.fMinus1 = kSqrt3_35 * L2R;
     fAmpl.fPlus1  = -1 * fAmpl.fMinus1;
     fAmpl.fMinus3 = k1_Sqrt7  * L2R;
     fAmpl.fPlus3  = -1 * fAmpl.fMinus3;
     fAmpl.f0Minus =  0.;
     fAmpl.f0Plus  =  0.;
     break;
   }
   default:
   {
     LOG("RSHAmpl", pWARN) << "*** UNRECOGNIZED RESONANCE!";
     fAmpl.fMinus1 = 0.;
     fAmpl.fPlus1  = 0.;
     fAmpl.fMinus3 = 0.;
     fAmpl.fPlus3  = 0.;
     fAmpl.f0Minus = 0.;
     fAmpl.f0Plus  = 0.;
     break;
   }

  }//switch

  return fAmpl;
}

Member Data Documentation

RSHelicityAmpl genie::RSHelicityAmplModelEMn::fAmpl

mutableprivate

Definition at line 40 of file RSHelicityAmplModelEMn.h.

---

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

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