herwig is hosted by Hepforge, IPPP Durham
Herwig 7.3.0
Herwig::SatPDF Class Reference

The SatPDF class defines a modified pdf which uses an existing pdf object to add modifications like removing the valence part of it, which is needed in the backward evolution of secondary scatters. More...

#include <SatPDF.h>

Inheritance diagram for Herwig::SatPDF:

Public Member Functions

 SatPDF ()
 The default constructor.
 
Virtual functions to be overridden by sub-classes.
virtual bool canHandleParticle (tcPDPtr particle) const
 Return true if this PDF can handle the extraction of partons from the given particle.
 
virtual cPDVector partons (tcPDPtr particle) const
 Return the partons which this PDF may extract from 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 xfvx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
 The valence density.
 
- Public Member Functions inherited from ThePEG::PDFBase
 PDFBase (const PDFBase &)
 
virtual bool canHandleParticle (tcPDPtr particle) const=0
 
virtual bool canHandle (tcPDPtr particle) const
 
virtual bool hasPoleIn1 (tcPDPtr particle, tcPDPtr parton) const
 
virtual cPDVector partons (tcPDPtr particle) const=0
 
virtual double xfl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale=ZERO) const
 
virtual double xfx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
 
virtual double xfvl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale=ZERO) const
 
virtual double xfvx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
 
virtual double xfsl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale=ZERO) const
 
virtual double xfsx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
 
virtual double flattenL (tcPDPtr particle, tcPDPtr parton, const PDFCuts &cut, double z, double &jacobian) const
 
virtual double flattenScale (tcPDPtr particle, tcPDPtr parton, const PDFCuts &cut, double l, double z, double &jacobian) const
 
tcRemHPtr remnantHandler () const
 
 PDFBase (const PDFBase &)
 
virtual bool canHandleParticle (tcPDPtr particle) const=0
 
virtual bool canHandle (tcPDPtr particle) const
 
virtual bool hasPoleIn1 (tcPDPtr particle, tcPDPtr parton) const
 
virtual cPDVector partons (tcPDPtr particle) const=0
 
virtual double xfl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale=ZERO) const
 
virtual double xfx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
 
virtual double xfvl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale=ZERO) const
 
virtual double xfvx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
 
virtual double xfsl (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double l, Energy2 particleScale=ZERO) const
 
virtual double xfsx (tcPDPtr particle, tcPDPtr parton, Energy2 partonScale, double x, double eps=0.0, Energy2 particleScale=ZERO) const
 
virtual double flattenL (tcPDPtr particle, tcPDPtr parton, const PDFCuts &cut, double z, double &jacobian) const
 
virtual double flattenScale (tcPDPtr particle, tcPDPtr parton, const PDFCuts &cut, double l, double z, double &jacobian) const
 
tcRemHPtr remnantHandler () const
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
- Public Member Functions inherited from ThePEG::HandlerBaseT< UseRandom >
double rnd () const
 
double rnd (double xu) const
 
double rnd (double xl, double xu) const
 
bool rndbool () const
 
bool rndbool (double p) const
 
bool rndbool (double p1, double p2) const
 
int rndsign (double p1, double p2, double p3) const
 
int rnd2 (double p0, double p1) const
 
int rnd3 (double p0, double p1, double p2) const
 
int rnd4 (double p0, double p1, double p2, double p3) const
 
long irnd (long xu=2) const
 
long irnd (long xl, long xu) const
 
const StandardModelBaseSM () const
 
tSMPtr standardModel () 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
 

Clone Methods.

PDFPtr thePDF
 pointer to the underlying ThePEG::PDFBase object, we are modifying.
 
double theX0
 x from where the extrapolation f(x) = f(theX0) * (x/theX0)**theExp is used for the pdf's.
 
double theExp
 the exponent of the pdf extrapolation for small x (x < theX0).
 
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.
 
SatPDFoperator= (const SatPDF &)=delete
 The assignment operator is private and must never be called.
 

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 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 ThePEG::PDFBase
static void Init ()
 
- Static Public Member Functions inherited from ThePEG::HandlerBase
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
 
- Protected Types inherited from ThePEG::PDFBase
enum  RangeException
 
- Protected Member Functions inherited from ThePEG::PDFBase
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 &)
 
ReferenceCountedoperator= (const ReferenceCounted &)
 
- Protected Member Functions inherited from ThePEG::Named
const Namedoperator= (const Named &other)
 
const string & name (const string &newName)
 
- Static Protected Member Functions inherited from ThePEG::Interfaced
static void registerRepository (IBPtr)
 
static void registerRepository (IBPtr, string newName)
 
- Protected Attributes inherited from ThePEG::PDFBase
 rangeZero
 
 rangeThrow
 
RemHPtr theRemnantHandler
 
RangeException rangeException
 

Detailed Description

The SatPDF class defines a modified pdf which uses an existing pdf object to add modifications like removing the valence part of it, which is needed in the backward evolution of secondary scatters.

Author
Manuel B"ahr
See also
The interfaces defined for SatPDF.

Definition at line 30 of file SatPDF.h.

Constructor & Destructor Documentation

◆ SatPDF()

Herwig::SatPDF::SatPDF ( )
inline

The default constructor.

Definition at line 37 of file SatPDF.h.

Member Function Documentation

◆ canHandleParticle()

virtual bool Herwig::SatPDF::canHandleParticle ( tcPDPtr  particle) const
virtual

Return true if this PDF can handle the extraction of partons from the given particle.

Implements ThePEG::PDFBase.

◆ clone()

virtual IBPtr Herwig::SatPDF::clone ( ) const
inlineprotectedvirtual

Make a simple clone of this object.

Returns
a pointer to the new object.

Implements ThePEG::InterfacedBase.

Definition at line 112 of file SatPDF.h.

◆ fullclone()

virtual IBPtr Herwig::SatPDF::fullclone ( ) const
inlineprotectedvirtual

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.

Definition at line 118 of file SatPDF.h.

◆ Init()

static void Herwig::SatPDF::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.

◆ operator=()

SatPDF & Herwig::SatPDF::operator= ( const SatPDF )
privatedelete

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

◆ partons()

virtual cPDVector Herwig::SatPDF::partons ( tcPDPtr  particle) const
virtual

Return the partons which this PDF may extract from the given particle.

Implements ThePEG::PDFBase.

◆ persistentInput()

void Herwig::SatPDF::persistentInput ( PersistentIStream is,
int  version 
)

Function used to read in object persistently.

Parameters
isthe persistent input stream read from.
versionthe version number of the object when written.

◆ persistentOutput()

void Herwig::SatPDF::persistentOutput ( PersistentOStream os) const

Function used to write out object persistently.

Parameters
osthe persistent output stream written to.

◆ xfvx()

virtual double Herwig::SatPDF::xfvx ( tcPDPtr  particle,
tcPDPtr  parton,
Energy2  partonScale,
double  x,
double  eps = 0.0,
Energy2  particleScale = ZERO 
) const
virtual

The valence density.

Return the pdf for the given cvalence parton inside the given particle for the virtuality partonScale and momentum fraction x. The particle is assumed to have a virtuality particleScale. If not overidden by a sub class this implementation will assume that the difference between a quark and anti-quark distribution is due do valense quarks, but return zero for anything else.

Reimplemented from ThePEG::PDFBase.

◆ xfx()

virtual double Herwig::SatPDF::xfx ( tcPDPtr  particle,
tcPDPtr  parton,
Energy2  partonScale,
double  x,
double  eps = 0.0,
Energy2  particleScale = ZERO 
) const
virtual

The density.

Return the pdf for the given parton inside the given particle for the virtuality partonScale and momentum fraction x. The particle is assumed to have a virtuality particleScale.

Reimplemented from ThePEG::PDFBase.

Member Data Documentation

◆ theExp

double Herwig::SatPDF::theExp
private

the exponent of the pdf extrapolation for small x (x < theX0).

Definition at line 148 of file SatPDF.h.

◆ thePDF

PDFPtr Herwig::SatPDF::thePDF
private

pointer to the underlying ThePEG::PDFBase object, we are modifying.

Definition at line 137 of file SatPDF.h.

◆ theX0

double Herwig::SatPDF::theX0
private

x from where the extrapolation f(x) = f(theX0) * (x/theX0)**theExp is used for the pdf's.

Definition at line 143 of file SatPDF.h.


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