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ThePEG  2.1.4

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:

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 $S$. More...
 
double S2 () const
 Return last selected $S^2$. More...
 
double S3 () const
 Return last selected $S^3$. More...
 
double rootS () const
 Return last selected $\sqrt{S}$. More...
 
double x () const
 Return last selected momentum fraction, $x$.
 
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 $=1-x$.
 
double rootx () const
 Return the square root of the last selected momentum fraction, $x$.
 
- 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 $i$ with probability p $i$/(p0+p1).
 
int rnd3 (double p0, double p1, double p2) const
 Return an integer $i$ with probability p $i$/(p0+p1+p2).
 
int rnd4 (double p0, double p1, double p2, double p3) const
 Return an integer/ $i$ with probability p $i$(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 StandardModelBaseSM () 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.
 
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 $Q^2$ 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 $Q^2$ 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.
 
ReferenceCountedoperator= (const ReferenceCounted &)
 Assignment.
 
- Protected Member Functions inherited from ThePEG::Named
const Namedoperator= (const Named &other)
 Assignment.
 
const string & name (const string &newName)
 Set new name.
 

Private Member Functions

GRVBaseoperator= (const GRVBase &)
 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, $x$.
 
double theEps
 One minus the last selected momentum fraction, eps $=1-x$.
 
double theRootx
 The square root of the last selected momentum fraction, $x$.
 
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 $S$. More...
 
double theS2
 Return last selected $S^2$.
 
double theS3
 Return last selected $S^3$.
 
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: