genie::LwlynSmithFFNC Class Reference

Concrete implementation of the QELFormFactorsModelI : Form Factors for Quasi Elastic NC vN scattering according to Llewellyn-Smith model. More...

#include <LwlynSmithFFNC.h>

Inheritance diagram for genie::LwlynSmithFFNC:

Collaboration diagram for genie::LwlynSmithFFNC:

Public Member Functions
	LwlynSmithFFNC ()
	LwlynSmithFFNC (string config)
virtual	~LwlynSmithFFNC ()
double	F1V (const Interaction *interaction) const
	Compute the form factor F1V for the input interaction.
double	xiF2V (const Interaction *interaction) const
	Compute the form factor xi*F2V for the input interaction.
double	FA (const Interaction *interaction) const
	Compute the form factor FA for the input interaction.
double	Fp (const Interaction *interaction) const
	Compute the form factor Fp for the input interaction.
Public Member Functions inherited from genie::LwlynSmithFF
virtual	~LwlynSmithFF ()
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.
virtual AlgStatus_t	GetStatus (void) const
	Get algorithm status.
virtual bool	AllowReconfig (void) const
virtual AlgCmp_t	Compare (const Algorithm *alg) const
	Compare with input algorithm.
virtual void	SetId (const AlgId &id)
	Set algorithm ID.
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.

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)
Protected Member Functions inherited from genie::LwlynSmithFF
	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.
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.
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.
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
int	AddLowRegistry (Registry *rp, bool owns=true)
	add registry with lowest priority, also update ownership
int	MergeTopRegistry (const Registry &r)
int	AddTopRegisties (const vector< Registry * > &rs, bool owns=false)
	Add registries with top priority, also udated Ownerships.
Protected Attributes inherited from genie::LwlynSmithFF
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,...)
AlgId	fID
	algorithm name and configuration set
vector< Registry * >	fConfVect
vector< bool >	fOwnerships
	ownership for every registry in fConfVect
AlgStatus_t	fStatus
	algorithm execution status
AlgMap *	fOwnedSubAlgMp
	local pool for owned sub-algs (taken out of the factory pool)

Detailed Description

Concrete implementation of the QELFormFactorsModelI : Form Factors for Quasi Elastic NC vN scattering according to Llewellyn-Smith model.

References:\n E.A.Paschos and J.Y.Yu, hep-ph/0107261

Author

Costas Andreopoulos <c.andreopoulos \at cern.ch> University of Liverpool

Created:\n May 03, 2004

License:\n Copyright (c) 2003-2025, The GENIE Collaboration

For the full text of the license visit http://copyright.genie-mc.org

Definition at line 29 of file LwlynSmithFFNC.h.

Constructor & Destructor Documentation

LwlynSmithFFNC() [1/2]

LwlynSmithFFNC::LwlynSmithFFNC

(

)

Definition at line 22 of file LwlynSmithFFNC.cxx.

                               :
LwlynSmithFF("genie::LwlynSmithFFNC")
{
 
}

References genie::LwlynSmithFF::LwlynSmithFF().

LwlynSmithFFNC() [2/2]

LwlynSmithFFNC::LwlynSmithFFNC

(

string

config

)

Definition at line 28 of file LwlynSmithFFNC.cxx.

                                            :
LwlynSmithFF("genie::LwlynSmithFFNC", config)
{
 
}

References genie::LwlynSmithFF::LwlynSmithFF().

~LwlynSmithFFNC()

LwlynSmithFFNC::~LwlynSmithFFNC ( )

virtual

Definition at line 34 of file LwlynSmithFFNC.cxx.

{
 
}

Member Function Documentation

F1V()

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

virtual

Compute the form factor F1V for the input interaction.

Reimplemented from genie::LwlynSmithFF.

Definition at line 39 of file LwlynSmithFFNC.cxx.

{
  //-- calculate F1V-CC
  double F1V_CC = LwlynSmithFF::F1V(interaction);
 
  //-- calculate F1p (see hep-ph/0107261)
  fELFF.Calculate(interaction);
  double t   = LwlynSmithFF::tau(interaction);
  double F1p = fELFF.Gep() - t * fELFF.Gmp();
 
  //-- calculate F1V-NC
  double F1V_NC = 0.5*F1V_CC - 2*fSin28w*F1p;
  return F1V_NC;
}

References genie::LwlynSmithFF::F1V(), genie::LwlynSmithFF::fELFF, genie::LwlynSmithFF::fSin28w, and genie::LwlynSmithFF::tau().

FA()

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

virtual

Compute the form factor FA for the input interaction.

Reimplemented from genie::LwlynSmithFF.

Definition at line 68 of file LwlynSmithFFNC.cxx.

{
  //-- calculate FA_CC(q2)
  double FA_CC = LwlynSmithFF::FA(interaction);
 
  //-- calculate & return FA_NC(q2)
  double FA_NC = 0.5 * FA_CC;
  return FA_NC;
}

References genie::LwlynSmithFF::FA().

Referenced by Fp().

Fp()

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

virtual

Compute the form factor Fp for the input interaction.

Reimplemented from genie::LwlynSmithFF.

Definition at line 78 of file LwlynSmithFFNC.cxx.

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

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

xiF2V()

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

virtual

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

Reimplemented from genie::LwlynSmithFF.

Definition at line 54 of file LwlynSmithFFNC.cxx.

{
  //-- calculate xiF2V_CC
  double xiF2V_CC = LwlynSmithFF::xiF2V(interaction);
 
  //-- calculate F2p (see hep-ph/0107261)
  fELFF.Calculate(interaction);
  double F2p = (fELFF.Gmp() - fELFF.Gep()) / fMuP;
 
  //-- calculate xiF2-NC
  double xiF2V_NC = 0.5*xiF2V_CC - 2*fSin28w*(fMuP-1)*F2p;
  return xiF2V_NC;
}

References genie::LwlynSmithFF::fELFF, genie::LwlynSmithFF::fMuP, genie::LwlynSmithFF::fSin28w, and genie::LwlynSmithFF::xiF2V().

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

• LwlynSmithFFNC.h
• LwlynSmithFFNC.cxx