apfel::EvolutionSetup Struct Reference

The EvolutionSetup structure is a collection of all possible evolution parameters. More...

#include <evolutionsetup.h>

Classes
struct	GridParameters
	Structure for the subgrid parameters. More...

Public Types
Enumerators of the evolution setup structure
enum	FlavourScheme : int { VFNS , FFNS }
enum	EvolutionTheory : int { QCD , QCD_QED }
	Evolution theory. More...
enum	Virtuality : int { SPACE , TIME }
	Space- or time-like evolution (PDFs or FFs) More...
enum	EvolPolarisation : int { UNP , POL , TRANS }
	Polarisation of the evolution. More...
enum	CouplingEvolution : int { exact , expanded }
	Solution of the coupling RG equations. More...
enum	PDFEvolution : int { exactmu , exactalpha , expandalpha , truncated }
	Solution of the DGLAP equation. More...
enum	MassRenScheme : int { POLE , MSBAR }
	Heavy quark mass renormalisation. More...

Public Member Functions
	EvolutionSetup ()
	the constructor

Public Attributes
Attributes of the struture.
std::string	name
	Identifier name of the setup.
double	Q0
	Starting scale of the evolutions.
std::vector< GridParameters >	GridParameters
	Vector of the parameters of the subgrids.
int	nQg
	Number of the grid in Q.
double	Qmin
	Lower bound of the grid in Q.
double	Qmax
	Upper bound of the grid in Q.
int	InterDegreeQ
	Interpolation degree on the grid in Q.
double	Lambda
	Pole of the grid in ln(ln(Q/Λ))
int	PerturbativeOrder
	Perturbative order of the evolution (LO, NLO, NNLO)
FlavourScheme	FlavourScheme
	Flavour scheme (FFNS, VFNS)
int	Nf_FF
	Number of active flavours in the FFNS.
EvolutionTheory	Theory
	Evolution theory (QCD, QCD_QED)
Virtuality	Virtuality
	Virtuality of the evolution (SPACE, TIME)
EvolPolarisation	EvolPolarisation
	Polarisation of the evolution (UNP, POL, TRANS)
double	AlphaQCDRef
	Reference value of the QCD coupling.
double	QQCDRef
	reference scale of the QCD coupling
double	AlphaQEDRef
	Reference value of the QED coupling.
double	QQEDRef
	Reference scale of the QCD coupling.
CouplingEvolution	CouplingEvolution
	Solution of the RGE of the couplings.
PDFEvolution	PDFEvolution
	Solution of the DGLAP equations.
double	xi
	Resummation-scale parameter.
std::vector< double >	Thresholds
	Heavy-quark thresholds.
std::vector< double >	Masses
	Heavy-quark Masses.
MassRenScheme	MassRenScheme
	Renormalization scheme for the heavy-quark masses (POLE, MSBAR)
double	TauMass
	Mass of the τ lepton.
double	GaussAccuracy
	Accuracy of the dguass integration.
std::vector< std::function< std::map< int, double >(double const &, double const &)> >	InSet
	Input set of distributions at the initial scale.

Detailed Description

The EvolutionSetup structure is a collection of all possible evolution parameters.

Member Enumeration Documentation

CouplingEvolution

enum apfel::EvolutionSetup::CouplingEvolution : int

Solution of the coupling RG equations.

Enumerator
exact
expanded

EvolPolarisation

enum apfel::EvolutionSetup::EvolPolarisation : int

Polarisation of the evolution.

Enumerator
UNP
POL
TRANS

EvolutionTheory

enum apfel::EvolutionSetup::EvolutionTheory : int

Evolution theory.

Enumerator
QCD
QCD_QED

FlavourScheme

enum apfel::EvolutionSetup::FlavourScheme : int

Flavour scheme

Enumerator
VFNS
FFNS

MassRenScheme

enum apfel::EvolutionSetup::MassRenScheme : int

Heavy quark mass renormalisation.

Enumerator
POLE
MSBAR

PDFEvolution

enum apfel::EvolutionSetup::PDFEvolution : int

Solution of the DGLAP equation.

Enumerator
exactmu
exactalpha
expandalpha
truncated

Virtuality

enum apfel::EvolutionSetup::Virtuality : int

Space- or time-like evolution (PDFs or FFs)

Enumerator
SPACE
TIME

Constructor & Destructor Documentation

EvolutionSetup()

apfel::EvolutionSetup::EvolutionSetup ( )

inline

the constructor

Member Data Documentation

AlphaQCDRef

double apfel::EvolutionSetup::AlphaQCDRef

Reference value of the QCD coupling.

AlphaQEDRef

double apfel::EvolutionSetup::AlphaQEDRef

Reference value of the QED coupling.

CouplingEvolution

CouplingEvolution apfel::EvolutionSetup::CouplingEvolution

Solution of the RGE of the couplings.

EvolPolarisation

EvolPolarisation apfel::EvolutionSetup::EvolPolarisation

Polarisation of the evolution (UNP, POL, TRANS)

FlavourScheme

FlavourScheme apfel::EvolutionSetup::FlavourScheme

Flavour scheme (FFNS, VFNS)

GaussAccuracy

double apfel::EvolutionSetup::GaussAccuracy

Accuracy of the dguass integration.

GridParameters

std::vector<GridParameters> apfel::EvolutionSetup::GridParameters

Vector of the parameters of the subgrids.

InSet

std::vector<std::function<std::map<int, double>(double const&, double const&)> > apfel::EvolutionSetup::InSet

Input set of distributions at the initial scale.

InterDegreeQ

int apfel::EvolutionSetup::InterDegreeQ

Interpolation degree on the grid in Q.

Lambda

double apfel::EvolutionSetup::Lambda

Pole of the grid in ln(ln(Q/Λ))

Masses

std::vector<double> apfel::EvolutionSetup::Masses

Heavy-quark Masses.

MassRenScheme

MassRenScheme apfel::EvolutionSetup::MassRenScheme

Renormalization scheme for the heavy-quark masses (POLE, MSBAR)

name

std::string apfel::EvolutionSetup::name

Identifier name of the setup.

Nf_FF

int apfel::EvolutionSetup::Nf_FF

Number of active flavours in the FFNS.

nQg

int apfel::EvolutionSetup::nQg

Number of the grid in Q.

PDFEvolution

PDFEvolution apfel::EvolutionSetup::PDFEvolution

Solution of the DGLAP equations.

PerturbativeOrder

int apfel::EvolutionSetup::PerturbativeOrder

Perturbative order of the evolution (LO, NLO, NNLO)

Q0

double apfel::EvolutionSetup::Q0

Starting scale of the evolutions.

Qmax

double apfel::EvolutionSetup::Qmax

Upper bound of the grid in Q.

Qmin

double apfel::EvolutionSetup::Qmin

Lower bound of the grid in Q.

QQCDRef

double apfel::EvolutionSetup::QQCDRef

reference scale of the QCD coupling

QQEDRef

double apfel::EvolutionSetup::QQEDRef

Reference scale of the QCD coupling.

TauMass

double apfel::EvolutionSetup::TauMass

Mass of the τ lepton.

Theory

EvolutionTheory apfel::EvolutionSetup::Theory

Evolution theory (QCD, QCD_QED)

Thresholds

std::vector<double> apfel::EvolutionSetup::Thresholds

Heavy-quark thresholds.

Virtuality

Virtuality apfel::EvolutionSetup::Virtuality

Virtuality of the evolution (SPACE, TIME)

xi

double apfel::EvolutionSetup::xi

Resummation-scale parameter.

---

The documentation for this struct was generated from the following file:

• /Users/vb262523/Codes/apfelxx/inc/apfel/evolutionsetup.h