ThePEG  1.8.0
Static Public Member Functions | Private Member Functions | Static Private Attributes
ThePEG::LeptonLeptonPDF Class Reference

LeptonLeptonPDF inherits from PDFBase and encodes the distribution of leptons within leptons, ie. More...

#include <LeptonLeptonPDF.h>

Inheritance diagram for ThePEG::LeptonLeptonPDF:
Inheritance graph
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List of all members.

Public Member Functions

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.
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.
virtual cPDVector partons (tcPDPtr p) const
 Return a vector of partons handled by this PDF (always the same lepton as the incoming particle).
virtual double xfl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale=ZERO) const
 Return the value of the density function at a given l $=\log(1/x)$ and scale for the given parton.
virtual double xfvl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale=ZERO) const
 Return the the valens part of the true pdf for the given parameters, with the momentum fraction given as l $=\log(1/x)$.
virtual double xfvx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps, Energy2 particleScale) const
 Return the the valens part of the true pdf for the given parameters, with the momentum fraction given as x.
virtual double flattenL (tcPDPtr particle, tcPDPtr parton, const PDFCuts &, double z, double &jacobian) const
 If the PDF contains strange peaks which can be difficult to handle, this function may be overwritten to return an appropriate l $=\log(1/x)$ for a z given by a flat distribution in ]0,1[.
- 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 double xfx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
 The density.
virtual double xfsl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale=ZERO) const
 The sea density.
virtual double xfsx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
 The sea density.
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).
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 interface.

Protected Member Functions

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

Private Member Functions

LeptonLeptonPDFoperator= (const LeptonLeptonPDF &)
 Private and non-existent assignment operator.

Static Private Attributes

static NoPIOClassDescription
< LeptonLeptonPDF
initLeptonLeptonPDF
 Describe a concrete class without persistent data.

Additional Inherited Members

- 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...
- 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

LeptonLeptonPDF inherits from PDFBase and encodes the distribution of leptons within leptons, ie.

the energy loss of leptons due to radiation of soft photons.

See also:
The interfaces defined for LeptonLeptonPDF.

Definition at line 25 of file LeptonLeptonPDF.h.


Member Function Documentation

virtual bool ThePEG::LeptonLeptonPDF::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 lepton.

Implements ThePEG::PDFBase.

virtual IBPtr ThePEG::LeptonLeptonPDF::clone ( ) const
protectedvirtual

Make a simple clone of this object.

Returns:
a pointer to the new object.

Implements ThePEG::InterfacedBase.

virtual double ThePEG::LeptonLeptonPDF::flattenL ( tcPDPtr  particle,
tcPDPtr  parton,
const PDFCuts ,
double  z,
double &  jacobian 
) const
virtual

If the PDF contains strange peaks which can be difficult to handle, this function may be overwritten to return an appropriate l $=\log(1/x)$ for a z given by a flat distribution in ]0,1[.

Also the jacobobian of the l(z) function must be returned. The default version will simly use the function l(z) = lmin + z*(lmax-lmin).

Reimplemented from ThePEG::PDFBase.

virtual IBPtr ThePEG::LeptonLeptonPDF::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.

virtual bool ThePEG::LeptonLeptonPDF::hasPoleIn1 ( tcPDPtr  particle,
tcPDPtr  parton 
) const
virtual

Return true if this PDF has a pole at $x=1$ for the given particle and parton.

Returns true if parton and particle are the same.

Reimplemented from ThePEG::PDFBase.

virtual double ThePEG::LeptonLeptonPDF::xfvl ( tcPDPtr  particle,
tcPDPtr  parton,
Energy2  partonScale,
double  l,
Energy2  particleScale = ZERO 
) const
virtual

Return the the valens part of the true pdf for the given parameters, with the momentum fraction given as l $=\log(1/x)$.

This version simply returns the full pdf.

Reimplemented from ThePEG::PDFBase.

virtual double ThePEG::LeptonLeptonPDF::xfvx ( tcPDPtr  particle,
tcPDPtr  parton,
Energy2  partonScale,
double  x,
double  eps,
Energy2  particleScale 
) const
virtual

Return the the valens part of the true pdf for the given parameters, with the momentum fraction given as x.

This version simply returns the full pdf.

Reimplemented from ThePEG::PDFBase.


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