matchbox::nlo_alpha_s Class Reference

NLO running alpha_s. More...

#include <nlo_alpha_s.h>

Inheritance diagram for matchbox::nlo_alpha_s:

Classes
struct	rg_solution

Public Member Functions
	nlo_alpha_s ()
	The default constructor.
virtual double	operator() (Energy2 scale, Energy2 lambda2, unsigned int nf) const
	return alpha_s as function of scale, QCD scale and number of active flavours
virtual unsigned int	nloops () const
	return the number of loops which determine this running
os the persistent output stream written to.
Function used to write out object persistently.
void	persistentOutput (PersistentOStream &os) const
Public Member Functions inherited from matchbox::alpha_s
	alpha_s ()
	The default constructor.
virtual double	value (Energy2 scale, const StandardModelBase &) const
	The \(\alpha_S\).
virtual vector< Energy2 >	flavourThresholds () const
	Return the flavour thresholds used.
virtual vector< Energy >	LambdaQCDs () const
	Return the \(\Lambda_{QCD}\) used for different numbers of active flavours.
double	operator() (Energy2 scale) const
	return alpha_s as function of scale
string	check (string args)
	match thresholds and write alpha_s to specified file; arguments are Q_low/GeV Q_high/GeV n_steps filename
unsigned int	min_active_flavours () const
	return minimum number of active flavours
void	min_active_flavours (unsigned int nf)
	set minimum number of active flavours
unsigned int	max_active_flavours () const
	return maximum number of active flavours
void	max_active_flavours (unsigned int nf)
	set maximum number of active flavours
unsigned int	active_flavours (Energy2 scale) const
	return the number of active flavours at the given scale
Energy2	lambda_squared (unsigned int f) const
	return the lambda squared for the given number of flavours
Energy2	quark_mass_squared (unsigned int f) const
	return the mass squared for given flavour
void	quark_mass_squared (unsigned int f, Energy2 m2)
	set the mass squared for given flavour
void	match_thresholds ()
	perform the threshold matching given alpha_s value at reference scale
bool	matched () const
	return true, if threshold matching has been performed
void	persistentOutput (PersistentOStream &os) const
void	persistentInput (PersistentIStream &is, int version)
Public Member Functions inherited from ThePEG::AlphaSBase
virtual vector< Energy2 >	flavourThresholds () const=0
virtual vector< Energy >	LambdaQCDs () const=0
unsigned int	Nf (Energy2 scale) const
Energy	LambdaQCD (unsigned int nflav) const
Energy	LambdaQCD (Energy2 scale) const
const vector< Energy > &	quarkMasses () const
virtual vector< Energy2 >	flavourThresholds () const=0
virtual vector< Energy >	LambdaQCDs () const=0
unsigned int	Nf (Energy2 scale) const
Energy	LambdaQCD (unsigned int nflav) const
Energy	LambdaQCD (Energy2 scale) const
const vector< Energy > &	quarkMasses () const
void	persistentOutput (PersistentOStream &os) const
void	persistentInput (PersistentIStream &is, int version)
Public Member Functions inherited from ThePEG::RunningCoupling
virtual double	value (Energy2 scale, const StandardModelBase &sm) const=0
virtual unsigned int	nloops () const
double	value (Energy2 scale) const
virtual double	overestimateValue (Energy2 scale) const
virtual double	ratioToOverestimate (Energy2) const
double	scaleFactor () const
void	persistentOutput (PersistentOStream &os) const
void	persistentInput (PersistentIStream &is, int version)
virtual double	value (Energy2 scale, const StandardModelBase &sm) const=0
virtual unsigned int	nloops () const
double	value (Energy2 scale) const
virtual double	overestimateValue (Energy2 scale) const
virtual double	ratioToOverestimate (Energy2) const
double	scaleFactor () const
Public Member Functions inherited from ThePEG::Interfaced
virtual bool	defaultInit ()
PPtr	getParticle (PID) const
PDPtr	getParticleData (PID) const
bool	used () const
void	useMe () const
tEGPtr	generator () const
void	persistentOutput (PersistentOStream &os) const
void	persistentInput (PersistentIStream &is, int version)
PPtr	getParticle (PID) const
PDPtr	getParticleData (PID) const
bool	used () const
void	useMe () const
tEGPtr	generator () const
Public Member Functions inherited from ThePEG::InterfacedBase
string	fullName () const
string	name () const
string	path () const
string	comment () const
void	setup (istream &is)
void	update ()
void	init ()
virtual bool	preInitialize () const
void	initrun ()
void	finish ()
void	touch ()
void	reset ()
void	clear ()
InitState	state () const
bool	locked () const
bool	touched () const
virtual IBPtr	fullclone () const
void	persistentOutput (PersistentOStream &os) const
void	persistentInput (PersistentIStream &is, int version)
virtual void	debugme () const
void	update ()
void	init ()
virtual bool	preInitialize () const
void	initrun ()
void	finish ()
void	touch ()
void	reset ()
void	clear ()
InitState	state () const
bool	locked () const
bool	touched () const
virtual IBPtr	fullclone () const
Public Member Functions inherited from ThePEG::Base
void	debug () const
virtual void	debugme () const
Public Member Functions inherited from ThePEG::Pointer::ReferenceCounted
CounterType	referenceCount () const
Public Member Functions inherited from ThePEG::Named
	Named (const string &newName=string())
	Named (const Named &)=default
const string &	name () const
bool	operator== (const Named &other) const
bool	operator< (const Named &other) const

Protected Member Functions
Standard Interfaced functions.
virtual void	doinit ()
	Initialize this object after the setup phase before saving an EventGenerator to disk.
Protected Member Functions inherited from matchbox::alpha_s
double	scale_factor () const
	return the scale factor
virtual void	doinit ()
Protected Member Functions inherited from ThePEG::Interfaced
void	reporeg (IBPtr object, string name) const
bool	setDefaultReference (PtrT &ptr, string classname, string objectname)
	Interfaced (const string &newName)
	Interfaced (const Interfaced &i)
void	setGenerator (tEGPtr generator)
Protected Member Functions inherited from ThePEG::InterfacedBase
virtual void	readSetup (istream &is)
virtual void	doupdate ()
virtual void	doinit ()
virtual void	doinitrun ()
virtual void	dofinish ()
virtual IVector	getReferences ()
virtual void	rebind (const TranslationMap &)
virtual IBPtr	clone () const=0
	InterfacedBase (string newName)
	InterfacedBase (const InterfacedBase &i)
virtual void	readSetup (istream &is)
virtual void	doupdate ()
virtual void	doinit ()
virtual void	doinitrun ()
virtual void	dofinish ()
virtual IVector	getReferences ()
virtual void	rebind (const TranslationMap &)
Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted
	ReferenceCounted (const ReferenceCounted &)
ReferenceCounted &	operator= (const ReferenceCounted &)
Protected Member Functions inherited from ThePEG::Named
const Named &	operator= (const Named &other)
const string &	name (const string &newName)

Clone Methods.
static ClassDescription< nlo_alpha_s >	initnlo_alpha_s
	The static object used to initialize the description of this class.
Energy	freezing_scale_
bool	exact_evaluation_
bool	two_largeq_terms_
virtual IBPtr	clone () const
	Make a simple clone of this object.
virtual IBPtr	fullclone () const
	Make a clone of this object, possibly modifying the cloned object to make it sane.
nlo_alpha_s &	operator= (const nlo_alpha_s &)=delete
	The assignment operator is private and must never be called.
static rg_solution &	rg ()
static gsl::bisection_root_solver< rg_solution, 100 > &	rg_solver ()

version the version number of the object when written.
void	persistentInput (PersistentIStream &is, int version)
static void	Init ()
	The standard Init function used to initialize the interfaces.

Additional Inherited Members
Public Types inherited from ThePEG::InterfacedBase
enum	InitState
Public Types inherited from ThePEG::Pointer::ReferenceCounted
typedef unsigned int	CounterType
Static Public Member Functions inherited from matchbox::alpha_s
static void	Init ()
	The standard Init function used to initialize the interfaces.
Static Public Member Functions inherited from ThePEG::AlphaSBase
static void	Init ()
Static Public Member Functions inherited from ThePEG::RunningCoupling
static void	Init ()
Static Public Member Functions inherited from ThePEG::Interfaced
static void	Init ()
Static Public Member Functions inherited from ThePEG::InterfacedBase
static void	Init ()
Static Public Member Functions inherited from ThePEG::Base
static void	Init ()
Public Attributes inherited from ThePEG::InterfacedBase
	initializing
	uninitialized
	initialized
	runready
Public Attributes inherited from ThePEG::Pointer::ReferenceCounted
const unsigned long	uniqueId
Static Protected Member Functions inherited from ThePEG::Interfaced
static void	registerRepository (IBPtr)
static void	registerRepository (IBPtr, string newName)

Detailed Description

NLO running alpha_s.

See also

The interfaces defined for nlo_alpha_s.

Definition at line 21 of file nlo_alpha_s.h.

Member Function Documentation

clone()

virtual IBPtr matchbox::nlo_alpha_s::clone ( ) const

protectedvirtual

Make a simple clone of this object.

Returns

a pointer to the new object.

Implements ThePEG::InterfacedBase.

doinit()

virtual void matchbox::nlo_alpha_s::doinit ( )

inlineprotectedvirtual

Initialize this object after the setup phase before saving an EventGenerator to disk.

Exceptions

InitException

if object could not be initialized properly.

Reimplemented from matchbox::alpha_s.

Definition at line 78 of file nlo_alpha_s.h.

References matchbox::alpha_s::doinit(), and matchbox::alpha_s::scale_factor().

fullclone()

virtual IBPtr matchbox::nlo_alpha_s::fullclone ( ) const

protectedvirtual

Make a clone of this object, possibly modifying the cloned object to make it sane.

Returns

a pointer to the new object.

Reimplemented from ThePEG::InterfacedBase.

Init()

static void matchbox::nlo_alpha_s::Init ( )

static

The standard Init function used to initialize the interfaces.

Called exactly once for each class by the class description system before the main function starts or when this class is dynamically loaded.

nloops()

virtual unsigned int matchbox::nlo_alpha_s::nloops ( ) const

inlinevirtual

return the number of loops which determine this running

Reimplemented from ThePEG::RunningCoupling.

Definition at line 40 of file nlo_alpha_s.h.

operator()()

virtual double matchbox::nlo_alpha_s::operator() ( Energy2  scale, Energy2  lambda2, unsigned int  nf  ) const

virtual

return alpha_s as function of scale, QCD scale and number of active flavours

Implements matchbox::alpha_s.

operator=()

nlo_alpha_s & matchbox::nlo_alpha_s::operator= ( const nlo_alpha_s &  )

privatedelete

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

rg()

static rg_solution & matchbox::nlo_alpha_s::rg ( )

inlinestaticprivate

Definition at line 138 of file nlo_alpha_s.h.

rg_solver()

static gsl::bisection_root_solver< rg_solution, 100 > & matchbox::nlo_alpha_s::rg_solver ( )

inlinestaticprivate

Definition at line 143 of file nlo_alpha_s.h.

Member Data Documentation

exact_evaluation_

bool matchbox::nlo_alpha_s::exact_evaluation_

private

Definition at line 136 of file nlo_alpha_s.h.

freezing_scale_

Energy matchbox::nlo_alpha_s::freezing_scale_

private

Definition at line 134 of file nlo_alpha_s.h.

initnlo_alpha_s

ClassDescription<nlo_alpha_s> matchbox::nlo_alpha_s::initnlo_alpha_s

staticprivate

The static object used to initialize the description of this class.

Indicates that this is an abstract class with persistent data.

Definition at line 108 of file nlo_alpha_s.h.

two_largeq_terms_

bool matchbox::nlo_alpha_s::two_largeq_terms_

private

Definition at line 148 of file nlo_alpha_s.h.

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

• nlo_alpha_s.h