GRVBase inherits from PDFBase and is used as a base class for all GRV parton densities. More...

#include <GRVBase.h>

Inheritance diagram for ThePEG::GRVBase:

[legend]

Public Member Functions
Standard constructors and destructors.
	GRVBase ()
	Default constructor.

virtual	~GRVBase ()
	Destructor.

Virtual functions required by the PDFBase class.
virtual bool	canHandleParticle (tcPDPtr particle) const
	Return true if this PDF can handle the extraction of parton from the given particle, ie. More...

virtual cPDVector	partons (tcPDPtr p) const
	Return the parton types which are described by these parton densities.

virtual double	xfl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale) const
	Return the value of the density of parton at the given a scale and log fractional momentum l (the optional virtuality of the incoming particle is not used).

virtual double	xfvl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale) const
	Return the valaens partof the density of parton at the given a scale and log fractional momentum l (the optional virtuality of the incoming particle is not used).

Access derived kinematical quantities.
double	S () const
	Return last selected . More...

double	S2 () const
	Return last selected . More...

double	S3 () const
	Return last selected . More...

double	rootS () const
	Return last selected $\sqrt{S}$ . More...

double	x () const
	Return last selected momentum fraction, .

double	lx () const
	Return last selected logarithmic momentum fraction $l=\log(1/x)$ .

double	eps () const
	Return one minus the last selected momentum fraction, eps .

double	rootx () const
	Return the square root of the last selected momentum fraction, .

Public Member Functions inherited from ThePEG::PDFBase
tcRemHPtr	remnantHandler () const
	Pointer to the remnant handler to handle remnant when extracting partons according to these densities.

	PDFBase ()
	Default constructor.

	PDFBase (const PDFBase &)
	Copy-constructor.

virtual	~PDFBase ()
	Destructor.

virtual bool	canHandle (tcPDPtr particle) const
	Return true if canHandleParticle() and if the corresponding method for remnantHandler() returns true for the given particle.

virtual bool	hasPoleIn1 (tcPDPtr particle, tcPDPtr parton) const
	Return true if this PDF has a pole at $x=1$ for the given particle and parton. More...

virtual double	xfx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
	The density. More...

virtual double	xfvx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
	The valence density. More...

virtual double	xfsl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale=ZERO) const
	The sea density. More...

virtual double	xfsx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
	The sea density. More...

virtual double	flattenL (tcPDPtr particle, tcPDPtr parton, const PDFCuts &cut, double z, double &jacobian) const
	Generate a momentum fraction. More...

virtual double	flattenScale (tcPDPtr particle, tcPDPtr parton, const PDFCuts &cut, double l, double z, double &jacobian) const
	Generate scale (as a fraction of the maximum scale). More...

void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently. More...

void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently. More...

Public Member Functions inherited from ThePEG::HandlerBaseT< UseRandom >
double	rnd () const
	Return a simple flat random number in the range ]0,1[.

double	rnd (double xu) const
	Return a simple flat random number in the range ]0,xu[.

double	rnd (double xl, double xu) const
	Return a simple flat random number in the range ]xl,xu[.

bool	rndbool () const
	Return true with 50% probability.

bool	rndbool (double p) const
	Return a true with probability p.

bool	rndbool (double p1, double p2) const
	Return a true with probability p1/(p1+p2).

int	rndsign (double p1, double p2, double p3) const
	Return -1, 0, or 1 with relative probabilities p1, p2, p3.

int	rnd2 (double p0, double p1) const
	Return an integer with probability p /(p0+p1).

int	rnd3 (double p0, double p1, double p2) const
	Return an integer with probability p /(p0+p1+p2).

int	rnd4 (double p0, double p1, double p2, double p3) const
	Return an integer/ with probability p (p0+p1+p2+p3).

long	irnd (long xu=2) const
	Return a simple flat random integrer number in the range [0,xu[.

long	irnd (long xl, long xu) const
	Return a simple flat random integrer number in the range [xl,xu[.

const StandardModelBase &	SM () const
	Return a reference to the object containing the standard model parameters for this run.

tSMPtr	standardModel () const
	Return a pointer to the object containing the standard model parameters for this run.

virtual	~HandlerBaseT ()
	Destructor.

Public Member Functions inherited from ThePEG::Interfaced
virtual	~Interfaced ()
	Empty virtual destructor.

virtual bool	defaultInit ()
	Functions which are to be used during the actual event generation, after the setup is complete. More...

PPtr	getParticle (PID) const
	Create a new Particle instance given a id number.

PDPtr	getParticleData (PID) const
	Return a pointer to the ParticleData object corresponding to the given id number.

bool	used () const
	Returns true if this object has actally been used.

void	useMe () const
	Should be called to indicate that this object has actually been used.

tEGPtr	generator () const
	Return a pointer to the EventGenerator controlling the run. More...

void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently. More...

void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently. More...

Public Member Functions inherited from ThePEG::InterfacedBase
virtual	~InterfacedBase ()
	The virtual (empty) destructor;.

string	fullName () const
	Returns the full name of this object including its path, e.g. More...

string	name () const
	Returns the name of this object, without the path.

string	path () const
	Returns the path to this object including the trailing '/'. More...

string	comment () const
	Returns a comment assigned to this object.

void	setup (istream &is)
	Read setup info from a standard istream is. More...

virtual IBPtr	fullclone () const
	Return a full clone of this object possibly doing things to the clone to make it sane.

virtual void	debugme () const
	Print out debugging information for this object on std::cerr. More...

void	update ()
	Calls the doupdate() function with recursion prevention.

void	init ()
	Calls the doinit() function with recursion prevention.

virtual bool	preInitialize () const
	Return true if this object needs to be initialized before all other objects (except those for which this function also returns true). More...

void	initrun ()
	Calls the doinitrun() function with recursion prevention.

void	finish ()
	Calls the dofinish() function with recursion prevention.

void	touch ()
	This function should be called every time something in this object has changed in a way that a sanity check with update() is needed.

void	reset ()
	Set the state of this object to uninitialized.

void	clear ()
	Calls reset() and unTouch().

InitState	state () const
	Return the state of initialization of this object.

bool	locked () const
	Return true if the BaseRepository is not allowed to change the state of this object.

bool	touched () const
	Return true if the state of this object has been changed since the last call to update().

void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently. More...

void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently. More...

Public Member Functions inherited from ThePEG::Base
virtual	~Base ()
	The virtual destructor.

void	debug () const
	Print out debugging information for this object on std::cerr. More...

Public Member Functions inherited from ThePEG::Pointer::ReferenceCounted
CounterType	referenceCount () const
	Return the reference count.

Public Member Functions inherited from ThePEG::Named
	Named (const string &newName=string())
	Constructor with name.

	Named (const Named &)=default
	Explicit default copy-constructor (too avoid compiler warnings)

const string &	name () const
	Return name.

bool	operator== (const Named &other) const
	Test for equality.

bool	operator< (const Named &other) const
	Lexicographical comparison.

Static Public Member Functions
static void	Init ()
	Standard Init function used to initialize the interface.

Static Public Member Functions inherited from ThePEG::PDFBase
static void	Init ()
	Standard Init function used to initialize the interface.

Static Public Member Functions inherited from ThePEG::HandlerBase
static void	Init ()
	Standard Init function used to initialize the interface.

Static Public Member Functions inherited from ThePEG::Interfaced
static void	Init ()
	Standard Init function.

Static Public Member Functions inherited from ThePEG::InterfacedBase
static void	Init ()
	Standard Init function.

Static Public Member Functions inherited from ThePEG::Base
static void	Init ()
	The standard Init function used to initialize the interfaces. More...

Protected Member Functions
virtual void	setup (double l, Energy2 scale) const =0
	Setup the l $=\log{1/x}$ and scale to be used in the following call to uv(), dv)=, etc.

void	setup (double l, Energy2 scale, Energy2 mu2, Energy2 lam2) const
	Setup the l $=\log{1/x}$ and scale to be used in the following call to uv(), dv)=, etc.

double	valens (double N, double ak, double bk, double a, double b, double c, double d) const
	The form of the valens density functions.

double	lightsea (double al, double be, double ak, double bk, double a, double b, double c, double d, double e, double es) const
	The form of the light sea and gluon density functions.

double	heavysea (double sth, double al, double be, double ak, double ag, double b, double d, double e, double es) const
	The form of the heavy sea density functions.

virtual double	uv () const =0
	Return the value of the u valens density for the values previously given by setup().

virtual double	dv () const =0
	Return the value of the d valens density for the values previously given by setup().

virtual double	del () const =0
	Return the value of the difference between the u and d sea densities for the values previously given by setup().

virtual double	udb () const =0
	Return the value of the average u and d sea densities for the values previously given by setup().

virtual double	sb () const =0
	Return the value of the s density for the values previously given by setup().

virtual double	cb () const =0
	Return the value of the c density for the values previously given by setup().

virtual double	bb () const =0
	Return the value of the b density for the values previously given by setup().

virtual double	gl () const =0
	Return the value of the gluon densities for the values previously given by setup().

double	fuv () const
	fuv() returns the saved values from the quv() functions if present. More...

double	fdv () const
	fdv() returns the saved values from the dv() functions if present. More...

double	fdel () const
	fdel() returns the saved values from the del() functions if present. More...

double	fudb () const
	fudb() returns the saved values from the udb() functions if present. More...

double	fsb () const
	fsb() returns the saved values from the sb() functions if present. More...

double	fcb () const
	fcb() returns the saved values from the cb() functions if present. More...

double	fbb () const
	fbb() returns the saved values from the bb() functions if present. More...

double	fgl () const
	fgl() returns the saved values from the gl() functions if present. More...

Protected Member Functions inherited from ThePEG::PDFBase
virtual void	doinit ()
	Initialize this object after the setup phase before saving an EventGenerator to disk. More...

Protected Member Functions inherited from ThePEG::Interfaced
void	reporeg (IBPtr object, string name) const
	Register the given object in the Repository with the given name in a subdirectory with the same name as this object. More...

template<typename PtrT >
bool	setDefaultReference (PtrT &ptr, string classname, string objectname)
	If the pointer, ptr, to an object is not set, create an object of class classname and register it with the Repository with the given objectname in a sib-directory with the same name as this object.

	Interfaced ()
	Protected default constructor.

	Interfaced (const string &newName)
	Protected constructor taking a name as argument.

	Interfaced (const Interfaced &i)
	Protected copy-constructor.

void	setGenerator (tEGPtr generator)
	Protected function to reset the generator pointer, required for automatic decayer generation in Herwig++ BSM models.

Protected Member Functions inherited from ThePEG::InterfacedBase
virtual IBPtr	clone () const =0
	Return a simple clone of this object. More...

	InterfacedBase ()
	Protected default constructor.

	InterfacedBase (string newName)
	Protected constructor with the name given as argument.

	InterfacedBase (const InterfacedBase &i)
	Protected copy-constructor.

virtual void	readSetup (istream &is)
	Read setup info from a standard istream is. More...

virtual void	doupdate ()
	Check sanity of the object during the setup phase. More...

virtual void	doinitrun ()
	Initialize this object. More...

virtual void	dofinish ()
	Finalize this object. More...

virtual IVector	getReferences ()
	Return a vector of all pointers to Interfaced objects used in this object. More...

virtual void	rebind (const TranslationMap &)
	Rebind pointer to other Interfaced objects. More...

Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted
	ReferenceCounted ()
	Default constructor.

	ReferenceCounted (const ReferenceCounted &)
	Copy-constructor.

ReferenceCounted &	operator= (const ReferenceCounted &)
	Assignment.

Protected Member Functions inherited from ThePEG::Named
const Named &	operator= (const Named &other)
	Assignment.

const string &	name (const string &newName)
	Set new name.

Private Member Functions
GRVBase &	operator= (const GRVBase &)=delete
	Private and non-existent assignment operator.

Private Attributes
double	theLx
	The last selected logarithmic momentum fraction $l=\log(1/x)$ .

double	thex
	THe last selected momentum fraction, .

double	theEps
	One minus the last selected momentum fraction, eps .

double	theRootx
	The square root of the last selected momentum fraction, .

Energy2	Q2
	The last selected scale.

Energy2	theLam2
	The last used $\Lambda_{QCD}^2$ .

Energy2	theMu2
	The last used $\mu^2$ .

double	theS
	The last selected . More...

double	theS2
	Return last selected .

double	theS3
	Return last selected .

double	theRootS
	Return last selected $\sqrt{S}$ .

double	uvSave
	Saved values from the different functions.

double	dvSave
	Saved values from the different functions.

double	delSave
	Saved values from the different functions.

double	udbSave
	Saved values from the different functions.

double	sbSave
	Saved values from the different functions.

double	cbSave
	Saved values from the different functions.

double	bbSave
	Saved values from the different functions.

double	glSave
	Saved values from the different functions.

Additional Inherited Members
Public Types inherited from ThePEG::InterfacedBase
enum	InitState { initializing = -1, uninitialized = 0, initialized = 1, runready = 2 }
	Enumeration reflecting the state of an InterfacedBase object. More...

Public Types inherited from ThePEG::Pointer::ReferenceCounted
typedef unsigned int	CounterType
	The integer type used for counting.

Public Attributes inherited from ThePEG::Pointer::ReferenceCounted
const unsigned long	uniqueId
	The unique ID. More...

Protected Types inherited from ThePEG::PDFBase
enum	RangeException { rangeFreeze, rangeZero, rangeThrow }
	Indicate how to deal with x and Q2 which are out of range. More...

Static Protected Member Functions inherited from ThePEG::Interfaced
static void	registerRepository (IBPtr)
	Register an Interfaced object with the Repository.

static void	registerRepository (IBPtr, string newName)
	Register an Interfaced object with the Repository, giving it a name.

Protected Attributes inherited from ThePEG::PDFBase
RemHPtr	theRemnantHandler
	A remnant handler which can generate remnants for the parton extracted withfor this PDF.

RangeException	rangeException
	Indicate to subclasses how to deal with x and Q2 which are out of range.

Detailed Description

GRVBase inherits from PDFBase and is used as a base class for all GRV parton densities.

See also: The interfaces defined for GRVBase.

Definition at line 24 of file GRVBase.h.

Member Function Documentation

◆ canHandleParticle()

virtual bool ThePEG::GRVBase::canHandleParticle ( tcPDPtr particle ) const

virtual

Return true if this PDF can handle the extraction of parton from the given particle, ie.

if the particle is a proton or neutron.

Implements ThePEG::PDFBase.

◆ fbb()

double ThePEG::GRVBase::fbb ( ) const

inlineprotected

fbb() returns the saved values from the bb() functions if present.

Otherwise bb() is called, saved and returned.

Definition at line 247 of file GRVBase.h.

References bb(), and bbSave.

◆ fcb()

double ThePEG::GRVBase::fcb ( ) const

inlineprotected

fcb() returns the saved values from the cb() functions if present.

Otherwise cb() is called, saved and returned.

Definition at line 241 of file GRVBase.h.

References cb(), and cbSave.

◆ fdel()

double ThePEG::GRVBase::fdel ( ) const

inlineprotected

fdel() returns the saved values from the del() functions if present.

Otherwise del() is called, saved and returned.

Definition at line 223 of file GRVBase.h.

References del(), and delSave.

◆ fdv()

double ThePEG::GRVBase::fdv ( ) const

inlineprotected

fdv() returns the saved values from the dv() functions if present.

Otherwise dv() is called, saved and returned.

Definition at line 217 of file GRVBase.h.

References dv(), and dvSave.

◆ fgl()

double ThePEG::GRVBase::fgl ( ) const

inlineprotected

fgl() returns the saved values from the gl() functions if present.

Otherwise gl() is called, saved and returned.

Definition at line 253 of file GRVBase.h.

References gl(), glSave, and Init().

◆ fsb()

double ThePEG::GRVBase::fsb ( ) const

inlineprotected

fsb() returns the saved values from the sb() functions if present.

Otherwise sb() is called, saved and returned.

Definition at line 235 of file GRVBase.h.

References sb(), and sbSave.

◆ fudb()

double ThePEG::GRVBase::fudb ( ) const

inlineprotected

fudb() returns the saved values from the udb() functions if present.

Otherwise udb() is called, saved and returned.

Definition at line 229 of file GRVBase.h.

References udb(), and udbSave.

◆ fuv()

double ThePEG::GRVBase::fuv ( ) const

inlineprotected

fuv() returns the saved values from the quv() functions if present.

Otherwise uv() is called, saved and returned.

Definition at line 211 of file GRVBase.h.

References uv(), and uvSave.

◆ rootS()

double ThePEG::GRVBase::rootS ( ) const

inline

Return last selected $\sqrt{S}$ .

$S=\log(\log(Q^2/\mu^2)/\log(Q^2/\Lambda_{QCD}^2))$

Definition at line 100 of file GRVBase.h.

References theRootS.

◆ S()

double ThePEG::GRVBase::S ( ) const

inline

Return last selected $S$ .

$S=\log(\log(Q^2/\mu^2)/\log(Q^2/\Lambda_{QCD}^2))$

Definition at line 82 of file GRVBase.h.

References theS.

◆ S2()

double ThePEG::GRVBase::S2 ( ) const

inline

Return last selected $S^2$ .

$S=\log(\log(Q^2/\mu^2)/\log(Q^2/\Lambda_{QCD}^2))$

Definition at line 88 of file GRVBase.h.

References theS2.

◆ S3()

double ThePEG::GRVBase::S3 ( ) const

inline

Return last selected $S^3$ .

$S=\log(\log(Q^2/\mu^2)/\log(Q^2/\Lambda_{QCD}^2))$

Definition at line 94 of file GRVBase.h.

References theS3.

Member Data Documentation

◆ theS

double ThePEG::GRVBase::theS

mutableprivate

The last selected $S$ .

$S=\log(\log(Q^2/\mu^2)/\log(Q^2/\Lambda_{QCD}^2))$

Definition at line 304 of file GRVBase.h.

Referenced by S().

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

GRVBase.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ canHandleParticle()

◆ fbb()

◆ fcb()

◆ fdel()

◆ fdv()

◆ fgl()

◆ fsb()

◆ fudb()

◆ fuv()

◆ rootS()

◆ S()

◆ S2()

◆ S3()

Member Data Documentation

◆ theS