Abstract Base Class: implements the QELFormFactorsModelI interface but can not be instantiated. More...

#include <LwlynSmithFF.h>

Inheritance diagram for genie::LwlynSmithFF:

Collaboration diagram for genie::LwlynSmithFF:

Public Member Functions
virtual	~LwlynSmithFF ()

virtual double	F1V (const Interaction *interaction) const
	Compute the form factor F1V for the input interaction. More...

virtual double	xiF2V (const Interaction *interaction) const
	Compute the form factor xi*F2V for the input interaction. More...

virtual double	FA (const Interaction *interaction) const
	Compute the form factor FA for the input interaction. More...

virtual double	Fp (const Interaction *interaction) const
	Compute the form factor Fp for the input interaction. More...

virtual void	Configure (const Registry &config)

virtual void	Configure (string config)

Public Member Functions inherited from genie::QELFormFactorsModelI
virtual	~QELFormFactorsModelI ()

Public Member Functions inherited from genie::Algorithm
virtual	~Algorithm ()

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...

Protected Member Functions
	LwlynSmithFF ()

	LwlynSmithFF (string name)

	LwlynSmithFF (string name, string config)

virtual void	LoadConfig (void)

virtual double	tau (const Interaction *interaction) const

virtual double	GVE (const Interaction *interaction) const

virtual double	GVM (const Interaction *interaction) const

virtual double	F1P (const Interaction *interaction) const

virtual double	F2P (const Interaction *interaction) const

virtual double	F1N (const Interaction *interaction) const

virtual double	F2N (const Interaction *interaction) const

virtual double	StrangeF1V (const Interaction *interaction) const

virtual double	StrangexiF2V (const Interaction *interaction) const

virtual double	StrangeFA (const Interaction *interaction) const

Protected Member Functions inherited from genie::QELFormFactorsModelI
	QELFormFactorsModelI ()

	QELFormFactorsModelI (string name)

	QELFormFactorsModelI (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

template<class T >
int	GetParamMat (const std::string &comm_name, TMatrixT< T > &mat, bool is_top_call=true) const
	Handle to load matrix of parameters. More...

template<class T >
int	GetParamMatSym (const std::string &comm_name, TMatrixTSym< T > &mat, bool is_top_call=true) const

int	GetParamMatKeys (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
const ELFormFactorsModelI *	fElFFModel

const AxialFormFactorModelI *	fAxFFModel

ELFormFactors	fELFF

AxialFormFactor	fAxFF

double	fMuP

double	fMuN

double	fSin28w

double	fFDratio

bool	fCleanUpfElFFModel

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...

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)

static string	BuildParamMatKey (const std::string &comm_name, unsigned int i, unsigned int j)

static string	BuildParamMatRowSizeKey (const std::string &comm_name)

static string	BuildParamMatColSizeKey (const std::string &comm_name)

Detailed Description

Abstract Base Class: implements the QELFormFactorsModelI interface but can not be instantiated.

      Its sole purpose of existence is to transmit common implementation
      (related to the Llewellyn-Smith model for QEL vN scattering) to its
      concrete subclasses: LwlynSmithFFCC, LwlynSmithFFNC.

Author: Costas Andreopoulos <c.andreopoulos cern.ch> University of Liverpool

Created:: May 03, 2004

License:: Copyright (c) 2003-2024, The GENIE Collaboration For the full text of the license visit http://copyright.genie-mc.org

Definition at line 36 of file LwlynSmithFF.h.

Constructor & Destructor Documentation

LwlynSmithFF::~LwlynSmithFF ( )

virtual

Definition at line 48 of file LwlynSmithFF.cxx.

References fCleanUpfElFFModel, and fElFFModel.

 {
   if (fCleanUpfElFFModel) {
     delete fElFFModel;
   }
 }

LwlynSmithFF::LwlynSmithFF ( )

protected

Definition at line 30 of file LwlynSmithFF.cxx.

                            :
 QELFormFactorsModelI()
 {
 
 }

LwlynSmithFF::LwlynSmithFF ( string name )

protected

Definition at line 36 of file LwlynSmithFF.cxx.

                                       :
 QELFormFactorsModelI(name)
 {
 
 }

LwlynSmithFF::LwlynSmithFF	(	string	name,
		string	config
	)

protected

Definition at line 42 of file LwlynSmithFF.cxx.

                                                      :
 QELFormFactorsModelI(name, config)
 {
 
 }

Member Function Documentation

void LwlynSmithFF::Configure ( const Registry & config )

virtual

Configure the algorithm with an external registry The registry is merged with the top level registry if it is owned, Otherwise a copy of it is added with the highest priority

Reimplemented from genie::Algorithm.

Definition at line 189 of file LwlynSmithFF.cxx.

References genie::Algorithm::Configure(), and LoadConfig().

 {
   Algorithm::Configure(config);
   this->LoadConfig();
 }

void LwlynSmithFF::Configure ( string config )

virtual

Configure the algorithm from the AlgoConfigPool based on param_set string given in input An algorithm contains a vector of registries coming from different xml configuration files, which are loaded according a very precise prioriy This methods will load a number registries in order of priority: 1) "Tunable" parameter set from CommonParametes. This is loaded with the highest prioriry and it is designed to be used for tuning procedure Usage not expected from the user. 2) For every string defined in "CommonParame" the corresponding parameter set will be loaded from CommonParameter.xml 3) parameter set specified by the config string and defined in the xml file of the algorithm 4) if config is not "Default" also the Default parameter set from the same xml file will be loaded Effectively this avoids the repetion of a parameter when it is not changed in the requested configuration

Reimplemented from genie::Algorithm.

Definition at line 195 of file LwlynSmithFF.cxx.

References genie::Algorithm::Configure(), and LoadConfig().

 {
   Algorithm::Configure(config);
   this->LoadConfig();
 }

double LwlynSmithFF::F1N ( const Interaction * interaction ) const

protectedvirtual

Definition at line 124 of file LwlynSmithFF.cxx.

References genie::ELFormFactors::Calculate(), fELFF, genie::ELFormFactors::Gen(), genie::ELFormFactors::Gmn(), and tau().

Referenced by StrangeF1V().

 {
   fELFF.Calculate(interaction);
   double t   = this->tau(interaction);
   double T   = 1 / (1 - t);
   return T * (fELFF.Gen() - t * fELFF.Gmn());
 }

double LwlynSmithFF::F1P ( const Interaction * interaction ) const

protectedvirtual

Definition at line 108 of file LwlynSmithFF.cxx.

References genie::ELFormFactors::Calculate(), fELFF, genie::ELFormFactors::Gep(), genie::ELFormFactors::Gmp(), and tau().

Referenced by StrangeF1V().

 {
   fELFF.Calculate(interaction);
   double t   = this->tau(interaction);
   double T   = 1 / (1 - t);
   return T * (fELFF.Gep() - t * fELFF.Gmp());
 }

double LwlynSmithFF::F1V ( const Interaction * interaction ) const

virtual

Compute the form factor F1V for the input interaction.

Implements genie::QELFormFactorsModelI.

Reimplemented in genie::LwlynSmithFFDeltaS, genie::MKFFCC, genie::LwlynSmithFFCC, and genie::LwlynSmithFFNC.

Definition at line 140 of file LwlynSmithFF.cxx.

References GVE(), GVM(), and tau().

Referenced by genie::LwlynSmithFFCC::F1V(), genie::LwlynSmithFFNC::F1V(), and genie::MKFFCC::F1V().

 {
   double t   = this->tau(interaction);
   double gve = this->GVE(interaction);
   double gvm = this->GVM(interaction);
 
   double _F1V = (gve - t*gvm) / (1-t);
   return _F1V;
 }

double LwlynSmithFF::F2N ( const Interaction * interaction ) const

protectedvirtual

Definition at line 132 of file LwlynSmithFF.cxx.

References genie::ELFormFactors::Calculate(), fELFF, genie::ELFormFactors::Gen(), genie::ELFormFactors::Gmn(), and tau().

Referenced by StrangexiF2V().

 {
   fELFF.Calculate(interaction);
   double t   = this->tau(interaction);
   double T   = 1 / (1 - t);
   return T * (fELFF.Gmn() - fELFF.Gen());
 }

double LwlynSmithFF::F2P ( const Interaction * interaction ) const

protectedvirtual

Definition at line 116 of file LwlynSmithFF.cxx.

References genie::ELFormFactors::Calculate(), fELFF, genie::ELFormFactors::Gep(), genie::ELFormFactors::Gmp(), and tau().

Referenced by StrangexiF2V().

 {
   fELFF.Calculate(interaction);
   double t   = this->tau(interaction);
   double T   = 1 / (1 - t);
   return T * (fELFF.Gmp() - fELFF.Gep());
 }

double LwlynSmithFF::FA ( const Interaction * interaction ) const

virtual

Compute the form factor FA for the input interaction.

Implements genie::QELFormFactorsModelI.

Reimplemented in genie::LwlynSmithFFDeltaS, genie::MKFFCC, genie::LwlynSmithFFCC, and genie::LwlynSmithFFNC.

Definition at line 160 of file LwlynSmithFF.cxx.

References genie::AxialFormFactor::Calculate(), genie::AxialFormFactor::FA(), and fAxFF.

Referenced by genie::LwlynSmithFFCC::FA(), genie::LwlynSmithFFNC::FA(), genie::MKFFCC::FA(), and Fp().

 {
   //-- compute FA(q2)
 
   fAxFF.Calculate(interaction);
   return fAxFF.FA();
 }

double LwlynSmithFF::Fp ( const Interaction * interaction ) const

virtual

Compute the form factor Fp for the input interaction.

Implements genie::QELFormFactorsModelI.

Reimplemented in genie::LwlynSmithFFDeltaS, genie::MKFFCC, genie::LwlynSmithFFCC, and genie::LwlynSmithFFNC.

Definition at line 168 of file LwlynSmithFF.cxx.

References FA(), genie::Target::HitNucMass(), genie::Interaction::InitState(), genie::Interaction::Kine(), genie::constants::kPionMass, genie::Kinematics::q2(), and genie::InitialState::Tgt().

Referenced by genie::LwlynSmithFFCC::Fp(), genie::MKFFCC::Fp(), and genie::LwlynSmithFFDeltaS::Fp().

 {
   // get momentum transfer
   const Kinematics & kine = interaction->Kine();
   double q2 = kine.q2();
 
   // get struck nucleon mass & set pion mass
   const InitialState & init_state = interaction->InitState();
   double MN   = init_state.Tgt().HitNucMass();
   double MN2  = TMath::Power(MN, 2);
   double Mpi  = kPionMass;
   double Mpi2 = TMath::Power(Mpi, 2);
 
   // calculate FA
   double fa = this->FA(interaction);
 
   // calculate Fp
   double _Fp = 2. * MN2 * fa/(Mpi2-q2);
   return _Fp;
 }

double LwlynSmithFF::GVE ( const Interaction * interaction ) const

protectedvirtual

Definition at line 259 of file LwlynSmithFF.cxx.

References genie::ELFormFactors::Calculate(), fELFF, genie::ELFormFactors::Gen(), and genie::ELFormFactors::Gep().

Referenced by F1V(), and xiF2V().

 {
   //-- compute GVE using CVC
 
   fELFF.Calculate(interaction);
   double gve = fELFF.Gep() - fELFF.Gen();
   return gve;
 }

double LwlynSmithFF::GVM ( const Interaction * interaction ) const

protectedvirtual

Definition at line 268 of file LwlynSmithFF.cxx.

References genie::ELFormFactors::Calculate(), fELFF, genie::ELFormFactors::Gmn(), and genie::ELFormFactors::Gmp().

Referenced by F1V(), and xiF2V().

 {
   //-- compute GVM using CVC
 
   fELFF.Calculate(interaction);
   double gvm = fELFF.Gmp() - fELFF.Gmn();
   return gvm;
 }

void LwlynSmithFF::LoadConfig ( void )

protectedvirtual

Definition at line 201 of file LwlynSmithFF.cxx.

References fAxFF, fAxFFModel, fCleanUpfElFFModel, fELFF, fElFFModel, fFDratio, fMuN, fMuP, fSin28w, genie::Algorithm::GetParam(), genie::ELFormFactors::SetModel(), genie::AxialFormFactor::SetModel(), and genie::Algorithm::SubAlg().

Referenced by Configure().

 {
 // Load configuration data from its configuration Registry (or global defaults)
 // to private data members
   fElFFModel =
     dynamic_cast<const ELFormFactorsModelI *> (this->SubAlg("ElasticFormFactorsModel"));
   assert(fElFFModel);
 
   fCleanUpfElFFModel = false;
   bool useElFFTE = false;
   GetParam( "UseElFFTransverseEnhancement", useElFFTE ) ;
   if(  useElFFTE ) {
     const ELFormFactorsModelI* sub_alg = fElFFModel;
     fElFFModel =
       dynamic_cast<const ELFormFactorsModelI *> (this->SubAlg("TransverseEnhancement"));
     dynamic_cast<const TransverseEnhancementFFModel*>(fElFFModel)->SetElFFBaseModel(
         sub_alg);
     fCleanUpfElFFModel = true;
   }
 
   fELFF.SetModel(fElFFModel);
 
   fAxFFModel =
     dynamic_cast<const AxialFormFactorModelI *> (this->SubAlg("AxialFormFactorModel"));
 
   assert(fAxFFModel);
   fAxFF.SetModel(fAxFFModel);
 
   // anomalous magnetic moments
   GetParam( "AnomMagnMoment-P", fMuP ) ;
   GetParam( "AnomMagnMoment-N", fMuN ) ;
 
   // weinberg angle
   double thw ;
   GetParam( "WeinbergAngle", thw ) ;
   fSin28w  = TMath::Power(TMath::Sin(thw), 2);
 
   double d,f ;
   GetParam( "SU3-D", d ) ;
   GetParam( "SU3-F", f ) ;
   fFDratio = f/(d+f);
 }

double LwlynSmithFF::StrangeF1V ( const Interaction * interaction ) const

protectedvirtual

Definition at line 55 of file LwlynSmithFF.cxx.

References genie::Interaction::ExclTag(), F1N(), F1P(), genie::kPdgLambda, genie::kPdgSigma0, genie::kPdgSigmaM, genie::constants::kSqrt2, genie::constants::kSqrt3, and genie::XclsTag::StrangeHadronPdg().

Referenced by genie::LwlynSmithFFDeltaS::F1V().

 {
   double f1p = this->F1P(interaction);
   double f1n = this->F1N(interaction);
   double value = 0.;
 
   const XclsTag &      xcls       = interaction->ExclTag();
   int pdgc = xcls.StrangeHadronPdg();
 
   if (pdgc == kPdgSigmaM)        value = -1.* (f1p + 2 * f1n);
   else if (pdgc == kPdgLambda)   value = -kSqrt3 / kSqrt2 * f1p;
   else if (pdgc == kPdgSigma0)   value = -1.* kSqrt2 / 2 * (f1p + 2 * f1n);
 
   return value;
 }

double LwlynSmithFF::StrangeFA ( const Interaction * interaction ) const

protectedvirtual

Definition at line 91 of file LwlynSmithFF.cxx.

References genie::AxialFormFactor::Calculate(), genie::Interaction::ExclTag(), genie::AxialFormFactor::FA(), fAxFF, fFDratio, genie::kPdgLambda, genie::kPdgSigma0, genie::kPdgSigmaM, genie::constants::kSqrt2, genie::constants::kSqrt6, and genie::XclsTag::StrangeHadronPdg().

Referenced by genie::LwlynSmithFFDeltaS::FA().

 {
   double value = 0.;
 
   const XclsTag &      xcls       = interaction->ExclTag();
   int pdgc = xcls.StrangeHadronPdg();
 
   if (pdgc == kPdgSigmaM)       value =  +1 * (1 - 2 * fFDratio);
   else if (pdgc == kPdgLambda)  value =  -1 / kSqrt6 * (1 + 2 * fFDratio);
   else if (pdgc == kPdgSigma0)  value =  +1 * kSqrt2 / 2 * (1 - 2 * fFDratio);
 
   fAxFF.Calculate(interaction);
   value *= fAxFF.FA();
 
   return value;
 }

double LwlynSmithFF::StrangexiF2V ( const Interaction * interaction ) const

protectedvirtual

Definition at line 71 of file LwlynSmithFF.cxx.

References genie::Interaction::ExclTag(), F2N(), F2P(), genie::kPdgLambda, genie::kPdgSigma0, genie::kPdgSigmaM, genie::constants::kSqrt2, genie::constants::kSqrt3, and genie::XclsTag::StrangeHadronPdg().

Referenced by genie::LwlynSmithFFDeltaS::xiF2V().

 {
   const XclsTag &      xcls       = interaction->ExclTag();
   int pdgc = xcls.StrangeHadronPdg();
 
   double f2p = this->F2P(interaction);
   double f2n = this->F2N(interaction);
   double value = 0.;
 
   if (pdgc == kPdgSigmaM)
     value = -1.*(f2p +  2.* f2n) ;
   else if (pdgc == kPdgLambda)
     value = (-kSqrt3 / kSqrt2 * f2p) ;
   else if (pdgc == kPdgSigma0)
     value = -1.* kSqrt2 / 2 * (f2p + 2.* f2n) ;
 
   return value;
 }

double LwlynSmithFF::tau ( const Interaction * interaction ) const

protectedvirtual

Reimplemented in genie::MKFFCC.

Definition at line 244 of file LwlynSmithFF.cxx.

References genie::Target::HitNucMass(), genie::Interaction::InitState(), genie::Interaction::Kine(), genie::Kinematics::q2(), and genie::InitialState::Tgt().

Referenced by F1N(), F1P(), genie::LwlynSmithFFNC::F1V(), F1V(), F2N(), F2P(), and xiF2V().

 {
 // computes q^2 / (4 * MNucl^2)
 
   //-- get kinematics & initial state parameters
   const Kinematics &   kinematics = interaction->Kine();
   const InitialState & init_state = interaction->InitState();
   double q2     = kinematics.q2();
   double Mnucl  = init_state.Tgt().HitNucMass();
   double Mnucl2 = TMath::Power(Mnucl, 2);
 
   //-- calculate q^2 / (4*Mnuc^2)
   return q2/(4*Mnucl2);
 }

double LwlynSmithFF::xiF2V ( const Interaction * interaction ) const

virtual

Compute the form factor xi*F2V for the input interaction.

Implements genie::QELFormFactorsModelI.

Reimplemented in genie::LwlynSmithFFDeltaS, genie::MKFFCC, genie::LwlynSmithFFCC, and genie::LwlynSmithFFNC.

Definition at line 150 of file LwlynSmithFF.cxx.

References GVE(), GVM(), and tau().

Referenced by genie::LwlynSmithFFCC::xiF2V(), genie::LwlynSmithFFNC::xiF2V(), and genie::MKFFCC::xiF2V().

 {
   double t   = this->tau(interaction);
   double gve = this->GVE(interaction);
   double gvm = this->GVM(interaction);
 
   double _xiF2V = (gvm-gve) / (1-t);
   return _xiF2V;
 }