ThePEG::PartonBinInstance Class Reference

PartonBinInstance is used to store information about the generation of a given parton extraction for a corresponding PartonBin object. More...

#include <PartonBinInstance.h>

Inheritance diagram for ThePEG::PartonBinInstance:

List of all members.

Public Member Functions

Standard constructors and destructors.

PartonBinInstance ()

Default constructor.

PartonBinInstance (const PartonBinInstance &)

Copy-constructor.

virtual ~PartonBinInstance ()

Destructor.

PartonBinInstance (tcPBPtr, tPBIPtr=tPBIPtr())

Constructor taking a PartonBin as argument.

PartonBinInstance (tPPtr parton, tcPBPtr pb, Energy2 scale=ZERO)

Constructor using an already prepared extracted parton.

Access information about the corresponding PartonBin object.

tcPBPtr bin () const

Return a pointer to the PartonBin this instance refer to.

const PartonVector & bins () const

Return pointers to the bins this instance refer to in case more than one parton has been extracted.

tcPDPtr particleData () const

Return a pointer to the data object of the incoming particle.

tcPDPtr partonData () const

Return a pointer to the data object of the extracted parton.

tPBIPtr incoming () const

In the case the incoming particle in turn is extracted from another particle, return the PartonBinInstance for that extraction.

tPBIPtr getFirst ()

Return the parton bin instance corresponding to the first incoming particle for this bin.

tcPDFPtr pdf () const

The PDFBase object describing the momentum distribution of the parton within the particle in this PartonBin.

tcRemHPtr remnantHandler () const

The remnant handler associated with the pdf().

bool hasPoleIn1 () const

Return true if the corresponding PDFs has a pole at $x=1$ for the current particle/parton combination.

Functions used for the generation.

void reset (double lx=0, Energy2 Q2=ZERO)

Reset the current PartonBin, making room for a new event.

void prepare ()

Reset last generated l and Q2 values of this and parent bins.

void generate (const double *r)

Generate l and Q2 of this and parent bins.

double fullFn (Energy2 newScale=-GeV2)

Return the parton density for this and parent particles.

double jacobian () const

Get the jacobian associated with the phase space point generated.

void jacobian (double j)

Set the jacobian associated with the phase space point generated.

Access information about the generated extraction.

tPPtr particle () const

Get the current particle instance.

void particle (tPPtr p)

Set the current particle instance.

tPPtr parton () const

Get the current parton instance.

void parton (tPPtr p)

Set the current parton instance.

const PVector & partons () const

The currently extracted partons (in case of multiple interactions.

double xi () const

Get the momentum fraction of this parton w.r.t.

double eps () const

Get one minus the momentum fraction of this parton w.r.t.

double li () const

Get the logarithmic momentum fraction of this parton w.r.t.

void li (double lx)

Set the logarithmic momentum fraction of this parton w.r.t.

double x () const

Get the momentum fraction of this parton w.r.t.

double l () const

Get the logarithmic momentum fraction of this parton w.r.t.

void l (double lx)

Set the logarithmic momentum fraction of this parton w.r.t.

Energy2 scale () const

Get the scale at which the current parton was extracted.

void scale (Energy2 s)

Set the scale at which the current parton was extracted.

const TransverseMomentum & kT () const

Return the transverse momentum of the extracted parton.

double remnantWeight () const

Get the weight associated with the remnant generation.

void remnantWeight (double w)

Set the weight associated with the remnant generation.

const PVector & remnants () const

Get the current remnants.

void remnants (const PVector &rems)

Set the current remnants.

tRemIPtr remnantInfo () const

Get information saved by the remnant handler from the generation, to be used in the construction of the remnants.

void remnantInfo (tRemIPtr ri)

Set information saved by the remnant handler from the generation, to be used in the construction of the remnants.

Functions used by the persistent I/O system.

void persistentOutput (PersistentOStream &os) const

Function used to write out object persistently.

void persistentInput (PersistentIStream &is, int version)

Function used to read in object persistently.

Static Public Member Functions

static void Init ()

Standard Init function used to initialize the interfaces.

Private Member Functions

PartonBinInstance & operator= (const PartonBinInstance &)

Private and non-existent assignment operator.

Private Attributes

cPBPtr theBin

Pointer to the main bin this instance refer to.

PartonVector theBins

Pointer to the main bin (and secondary in case several partons have been extracted this instance refer to.

PBIPtr theIncoming

In the case the incoming particle in turn is extracted from another particle, this is the PartonBinInstance for that extraction.

double theJacobian

The jacobian associated with the phase space point generated.

PPtr theParticle

The current particle instance.

PPtr theParton

The current parton instance.

PVector thePartons

The currently extracted partons (in case of multiple interactions.

double theXi

The momentum fraction (xi, li=log(xi), eps=1-xi), of this parton w.r.t.

double theEps

The momentum fraction (xi, li=log(xi), eps=1-xi), of this parton w.r.t.

double theLi

The momentum fraction (xi, li=log(xi), eps=1-xi), of this parton w.r.t.

double theX

The momentum fraction (x, l=log(x)) of this parton w.r.t.

double theL

The momentum fraction (x, l=log(x)) of this parton w.r.t.

Energy2 theScale

The scale at which the current parton was extracted.

TransverseMomentum theKT

The transverse momentum of the extracted parton.

double theRemnantWeight

The weight associated with the remnant generation.

PVector theRemnants

The current remnants.

RemIPtr theRemInfo

The information saved by the remnant handler from the generation, to be used in the construction of the remnants.

Static Private Attributes

static ClassDescription
< PartonBinInstance > initPartonBinInstance

Describe a concrete class with persistent data.

Detailed Description

PartonBinInstance is used to store information about the generation of a given parton extraction for a corresponding PartonBin object.

Definition at line 28 of file PartonBinInstance.h.

Constructor & Destructor Documentation

ThePEG::PartonBinInstance::PartonBinInstance	(	tcPBPtr	,
		tPBIPtr	= `tPBIPtr()`
	)

Constructor taking a PartonBin as argument.

The second argument should be used if the incoming bin is already known and exists.

ThePEG::PartonBinInstance::PartonBinInstance	(	tPPtr	parton,
		tcPBPtr	pb,
		Energy2	scale = `ZERO`
	)

Constructor using an already prepared extracted parton.

This will also initialize the x, and scale values. To calculate the momentum fractions, a Direction<0> object must have been properly initialized.

Parameters:

	parton	the extracted parton which must have its first parent set to define the particle extracted from.
	pb	the PartonBin object corresponding to the extracted parton. If the particle extracted from in turn has been extracted, the incoming() member of the PartonBin must point to the corresponding PartonBin.
	scale	the resolution scale at which the parton was extracted.

Member Function Documentation

double ThePEG::PartonBinInstance::fullFn ( Energy2 newScale = -GeV2 )

Return the parton density for this and parent particles.

If the argument is positive, this scale should be used.

double ThePEG::PartonBinInstance::xi ( ) const [inline]

Get the momentum fraction of this parton w.r.t.

the incoming particle in this bin.

Definition at line 198 of file PartonBinInstance.h.

References li(), and theXi.

double ThePEG::PartonBinInstance::eps ( ) const [inline]

Get one minus the momentum fraction of this parton w.r.t.

the incoming particle in this bin.

Definition at line 208 of file PartonBinInstance.h.

References ThePEG::Math::exp1m(), li(), and theEps.

double ThePEG::PartonBinInstance::li ( ) const [inline]

Get the logarithmic momentum fraction of this parton w.r.t.

the incoming particle in this bin.

Definition at line 217 of file PartonBinInstance.h.

References theLi.

Referenced by eps(), and xi().

void ThePEG::PartonBinInstance::li ( double lx ) [inline]

Set the logarithmic momentum fraction of this parton w.r.t.

the incoming particle in this bin.

Definition at line 223 of file PartonBinInstance.h.

References theEps, theLi, and theXi.

double ThePEG::PartonBinInstance::x ( ) const [inline]

Get the momentum fraction of this parton w.r.t.

the collidig particles.

Definition at line 233 of file PartonBinInstance.h.

References l(), and theX.

double ThePEG::PartonBinInstance::l ( ) const [inline]

Get the logarithmic momentum fraction of this parton w.r.t.

the collidig particles.

Definition at line 243 of file PartonBinInstance.h.

References theL.

Referenced by x().

void ThePEG::PartonBinInstance::l ( double lx ) [inline]

Set the logarithmic momentum fraction of this parton w.r.t.

the collidig particles.

Definition at line 249 of file PartonBinInstance.h.

References theL, and theX.

tRemIPtr ThePEG::PartonBinInstance::remnantInfo ( ) const [inline]

Get information saved by the remnant handler from the generation, to be used in the construction of the remnants.

(In addition the remnantWeight and remnants() may be used for this purpose.)

Definition at line 296 of file PartonBinInstance.h.

References theRemInfo.

void ThePEG::PartonBinInstance::remnantInfo ( tRemIPtr ri ) [inline]

Set information saved by the remnant handler from the generation, to be used in the construction of the remnants.

(In addition the remnantWeight and remnants() may be used for this purpose.)

Definition at line 303 of file PartonBinInstance.h.

References theRemInfo.

void ThePEG::PartonBinInstance::persistentOutput ( PersistentOStream & os ) const

Function used to write out object persistently.

Parameters:

os

the persistent output stream written to.

void ThePEG::PartonBinInstance::persistentInput	(	PersistentIStream &	is,
		int	version
	)

Function used to read in object persistently.

Parameters:

	is	the persistent input stream read from.
	version	the version number of the object when written.

Member Data Documentation

double ThePEG::PartonBinInstance::theXi [mutable, private]

The momentum fraction (xi, li=log(xi), eps=1-xi), of this parton w.r.t.

the incoming particle in this bin.

Definition at line 375 of file PartonBinInstance.h.

Referenced by li(), and xi().

double ThePEG::PartonBinInstance::theEps [mutable, private]

The momentum fraction (xi, li=log(xi), eps=1-xi), of this parton w.r.t.

the incoming particle in this bin.

Definition at line 381 of file PartonBinInstance.h.

Referenced by eps(), and li().

double ThePEG::PartonBinInstance::theLi [private]

The momentum fraction (xi, li=log(xi), eps=1-xi), of this parton w.r.t.

the incoming particle in this bin.

Definition at line 387 of file PartonBinInstance.h.

Referenced by li().

double ThePEG::PartonBinInstance::theX [mutable, private]

The momentum fraction (x, l=log(x)) of this parton w.r.t.

the collidig particles.

Definition at line 393 of file PartonBinInstance.h.

Referenced by l(), and x().

double ThePEG::PartonBinInstance::theL [private]

The momentum fraction (x, l=log(x)) of this parton w.r.t.

the collidig particles.

Definition at line 398 of file PartonBinInstance.h.

Referenced by l().

RemIPtr ThePEG::PartonBinInstance::theRemInfo [private]

The information saved by the remnant handler from the generation, to be used in the construction of the remnants.

(In addition the remnantWeight and lastRemnants() may be used for this purpose.)

Definition at line 425 of file PartonBinInstance.h.

Referenced by remnantInfo().

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

PartonBinInstance.h


Public Member Functions
Standard constructors and destructors.
	PartonBinInstance ()
	Default constructor.
	PartonBinInstance (const PartonBinInstance &)
	Copy-constructor.
virtual	~PartonBinInstance ()
	Destructor.
	PartonBinInstance (tcPBPtr, tPBIPtr=tPBIPtr())
	Constructor taking a PartonBin as argument.
	PartonBinInstance (tPPtr parton, tcPBPtr pb, Energy2 scale=ZERO)
	Constructor using an already prepared extracted parton.
Access information about the corresponding PartonBin object.
tcPBPtr	bin () const
	Return a pointer to the PartonBin this instance refer to.
const PartonVector &	bins () const
	Return pointers to the bins this instance refer to in case more than one parton has been extracted.
tcPDPtr	particleData () const
	Return a pointer to the data object of the incoming particle.
tcPDPtr	partonData () const
	Return a pointer to the data object of the extracted parton.
tPBIPtr	incoming () const
	In the case the incoming particle in turn is extracted from another particle, return the PartonBinInstance for that extraction.
tPBIPtr	getFirst ()
	Return the parton bin instance corresponding to the first incoming particle for this bin.
tcPDFPtr	pdf () const
	The PDFBase object describing the momentum distribution of the parton within the particle in this PartonBin.
tcRemHPtr	remnantHandler () const
	The remnant handler associated with the pdf().
bool	hasPoleIn1 () const
	Return true if the corresponding PDFs has a pole at $x=1$ for the current particle/parton combination.
Functions used for the generation.
void	reset (double lx=0, Energy2 Q2=ZERO)
	Reset the current PartonBin, making room for a new event.
void	prepare ()
	Reset last generated l and Q2 values of this and parent bins.
void	generate (const double *r)
	Generate l and Q2 of this and parent bins.
double	fullFn (Energy2 newScale=-GeV2)
	Return the parton density for this and parent particles.
double	jacobian () const
	Get the jacobian associated with the phase space point generated.
void	jacobian (double j)
	Set the jacobian associated with the phase space point generated.
Access information about the generated extraction.
tPPtr	particle () const
	Get the current particle instance.
void	particle (tPPtr p)
	Set the current particle instance.
tPPtr	parton () const
	Get the current parton instance.
void	parton (tPPtr p)
	Set the current parton instance.
const PVector &	partons () const
	The currently extracted partons (in case of multiple interactions.
double	xi () const
	Get the momentum fraction of this parton w.r.t.
double	eps () const
	Get one minus the momentum fraction of this parton w.r.t.
double	li () const
	Get the logarithmic momentum fraction of this parton w.r.t.
void	li (double lx)
	Set the logarithmic momentum fraction of this parton w.r.t.
double	x () const
	Get the momentum fraction of this parton w.r.t.
double	l () const
	Get the logarithmic momentum fraction of this parton w.r.t.
void	l (double lx)
	Set the logarithmic momentum fraction of this parton w.r.t.
Energy2	scale () const
	Get the scale at which the current parton was extracted.
void	scale (Energy2 s)
	Set the scale at which the current parton was extracted.
const TransverseMomentum &	kT () const
	Return the transverse momentum of the extracted parton.
double	remnantWeight () const
	Get the weight associated with the remnant generation.
void	remnantWeight (double w)
	Set the weight associated with the remnant generation.
const PVector &	remnants () const
	Get the current remnants.
void	remnants (const PVector &rems)
	Set the current remnants.
tRemIPtr	remnantInfo () const
	Get information saved by the remnant handler from the generation, to be used in the construction of the remnants.
void	remnantInfo (tRemIPtr ri)
	Set information saved by the remnant handler from the generation, to be used in the construction of the remnants.
Functions used by the persistent I/O system.
void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently.
void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently.
Static Public Member Functions
static void	Init ()
	Standard Init function used to initialize the interfaces.
Private Member Functions
PartonBinInstance &	operator= (const PartonBinInstance &)
	Private and non-existent assignment operator.
Private Attributes
cPBPtr	theBin
	Pointer to the main bin this instance refer to.
PartonVector	theBins
	Pointer to the main bin (and secondary in case several partons have been extracted this instance refer to.
PBIPtr	theIncoming
	In the case the incoming particle in turn is extracted from another particle, this is the PartonBinInstance for that extraction.
double	theJacobian
	The jacobian associated with the phase space point generated.
PPtr	theParticle
	The current particle instance.
PPtr	theParton
	The current parton instance.
PVector	thePartons
	The currently extracted partons (in case of multiple interactions.
double	theXi
	The momentum fraction (xi, li=log(xi), eps=1-xi), of this parton w.r.t.
double	theEps
	The momentum fraction (xi, li=log(xi), eps=1-xi), of this parton w.r.t.
double	theLi
	The momentum fraction (xi, li=log(xi), eps=1-xi), of this parton w.r.t.
double	theX
	The momentum fraction (x, l=log(x)) of this parton w.r.t.
double	theL
	The momentum fraction (x, l=log(x)) of this parton w.r.t.
Energy2	theScale
	The scale at which the current parton was extracted.
TransverseMomentum	theKT
	The transverse momentum of the extracted parton.
double	theRemnantWeight
	The weight associated with the remnant generation.
PVector	theRemnants
	The current remnants.
RemIPtr	theRemInfo
	The information saved by the remnant handler from the generation, to be used in the construction of the remnants.
Static Private Attributes
static ClassDescription < PartonBinInstance >	initPartonBinInstance
	Describe a concrete class with persistent data.