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Herwig 7.3.0
Herwig::ShowerApproximationGenerator Class Reference

ShowerApproximationGenerator generates emissions according to a shower approximation entering a NLO matching. More...

#include <ShowerApproximationGenerator.h>

Inheritance diagram for Herwig::ShowerApproximationGenerator:

Public Member Functions

 ShowerApproximationGenerator ()
 The default constructor.
 
- Public Member Functions inherited from ThePEG::StepHandler
virtual void handle (EventHandler &eh, const tPVector &tagged, const Hint &hint)=0
 
tEHPtr eventHandler () const
 
void eventHandler (tEHPtr)
 
tStepPtr newStep ()
 
tStepPtr currentStep ()
 
virtual void handle (EventHandler &eh, const tPVector &tagged, const Hint &hint)=0
 
- 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.

Ptr< ShowerApproximation >::ptr theShowerApproximation
 The shower approximation to consider.
 
Ptr< MatchboxPhasespace >::ptr thePhasespace
 The (invertible) phase space generator to use.
 
map< cPDVector, set< Ptr< ShowerApproximationKernel >::ptr > > theKernelMap
 Map hard processes to the respective kernels.
 
unsigned long thePresamplingPoints
 The number of points to presample this splitting generator.
 
unsigned long theMaxTry
 The maximum number of trials to generate a splitting.
 
unsigned long theFreezeGrid
 Return the number of accepted points after which the grid should be frozen.
 
tStdXCombPtr lastIncomingXComb
 The last external Born XComb dealt with.
 
Ptr< MatchboxMEBase >::ptr theLastBornME
 The last internal Born matrix element dealt with.
 
vector< Lorentz5Momentum > theLastMomenta
 The last Born phase space point.
 
vector< Lorentz5Momentum > theLastPresamplingMomenta
 The last Born phase space point used while presampling.
 
vector< double > theLastRandomNumbers
 The random numbers which have produced the last Born phase space point.
 
tStdXCombPtr theLastBornXComb
 The last internal Born XComb dealt with.
 
PPair theLastPartons
 The last internal incoming partons dealt with.
 
bool theDoCompensate
 True, if sampler should apply compensation.
 
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.
 
ShowerApproximationGeneratoroperator= (const ShowerApproximationGenerator &)=delete
 The assignment operator is private and must never be called.
 

Virtual functions required by the StepHandler class.

virtual void handle (EventHandler &eh, const tPVector &tagged, const Hint &hint)
 The main function called by the EventHandler class to perform a step.
 
bool prepare (bool didproject)
 Fill information on the Born process.
 
bool generate (const vector< double > &)
 Generate a Born phase space point while kernels are being presampled.
 
void restore ()
 Restore information on the Born process.
 
double generateFraction (tcPDPtr, double, double) const
 Generate a momentum fraction for the given parton species.
 
double invertFraction (tcPDPtr, double, double) const
 Invert the momentum fraction for the given parton species.
 
Energy ffPtCut () const
 Return the pt cut to be applied for final-final dipoles.
 
Energy fiPtCut () const
 Return the pt cut to be applied for final-initial dipoles.
 
Energy iiPtCut () const
 Return the pt cut to be applied for initial-initial dipoles.
 

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::StepHandler
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 Member Functions inherited from ThePEG::StepHandler
void createNewStep ()
 
- 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)
 

Detailed Description

ShowerApproximationGenerator generates emissions according to a shower approximation entering a NLO matching.

Author
Simon Platzer

Definition at line 32 of file ShowerApproximationGenerator.h.

Member Function Documentation

◆ clone()

virtual IBPtr Herwig::ShowerApproximationGenerator::clone ( ) const
protectedvirtual

Make a simple clone of this object.

Returns
a pointer to the new object.

Implements ThePEG::InterfacedBase.

◆ ffPtCut()

Energy Herwig::ShowerApproximationGenerator::ffPtCut ( ) const
inlineprotected

Return the pt cut to be applied for final-final dipoles.

Definition at line 97 of file ShowerApproximationGenerator.h.

References theShowerApproximation.

◆ fiPtCut()

Energy Herwig::ShowerApproximationGenerator::fiPtCut ( ) const
inlineprotected

Return the pt cut to be applied for final-initial dipoles.

Definition at line 102 of file ShowerApproximationGenerator.h.

References theShowerApproximation.

◆ fullclone()

virtual IBPtr Herwig::ShowerApproximationGenerator::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.

◆ handle()

virtual void Herwig::ShowerApproximationGenerator::handle ( EventHandler eh,
const tPVector tagged,
const Hint hint 
)
virtual

The main function called by the EventHandler class to perform a step.

Given the current state of an Event, this function performs the event generation step and includes the result in a new Step object int the Event record.

Parameters
ehthe EventHandler in charge of the Event generation.
taggedif not empty these are the only particles which should be considered by the StepHandler.
hinta Hint object with possible information from previously performed steps.
Exceptions
Vetoif the StepHandler requires the current step to be discarded.
Stopif the generation of the current Event should be stopped after this call.
Exceptionif something goes wrong.

Implements ThePEG::StepHandler.

◆ iiPtCut()

Energy Herwig::ShowerApproximationGenerator::iiPtCut ( ) const
inlineprotected

Return the pt cut to be applied for initial-initial dipoles.

Definition at line 107 of file ShowerApproximationGenerator.h.

References theShowerApproximation.

◆ Init()

static void Herwig::ShowerApproximationGenerator::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=()

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

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

◆ persistentInput()

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

Function used to write out object persistently.

Parameters
osthe persistent output stream written to.

Member Data Documentation

◆ lastIncomingXComb

tStdXCombPtr Herwig::ShowerApproximationGenerator::lastIncomingXComb
private

The last external Born XComb dealt with.

Definition at line 193 of file ShowerApproximationGenerator.h.

◆ theDoCompensate

bool Herwig::ShowerApproximationGenerator::theDoCompensate
private

True, if sampler should apply compensation.

Definition at line 231 of file ShowerApproximationGenerator.h.

◆ theFreezeGrid

unsigned long Herwig::ShowerApproximationGenerator::theFreezeGrid
private

Return the number of accepted points after which the grid should be frozen.

Definition at line 188 of file ShowerApproximationGenerator.h.

◆ theKernelMap

map<cPDVector,set<Ptr<ShowerApproximationKernel>::ptr> > Herwig::ShowerApproximationGenerator::theKernelMap
private

Map hard processes to the respective kernels.

Definition at line 172 of file ShowerApproximationGenerator.h.

◆ theLastBornME

Ptr<MatchboxMEBase>::ptr Herwig::ShowerApproximationGenerator::theLastBornME
private

The last internal Born matrix element dealt with.

Definition at line 200 of file ShowerApproximationGenerator.h.

◆ theLastBornXComb

tStdXCombPtr Herwig::ShowerApproximationGenerator::theLastBornXComb
private

The last internal Born XComb dealt with.

Definition at line 221 of file ShowerApproximationGenerator.h.

◆ theLastMomenta

vector<Lorentz5Momentum> Herwig::ShowerApproximationGenerator::theLastMomenta
private

The last Born phase space point.

Definition at line 205 of file ShowerApproximationGenerator.h.

◆ theLastPartons

PPair Herwig::ShowerApproximationGenerator::theLastPartons
private

The last internal incoming partons dealt with.

Definition at line 226 of file ShowerApproximationGenerator.h.

◆ theLastPresamplingMomenta

vector<Lorentz5Momentum> Herwig::ShowerApproximationGenerator::theLastPresamplingMomenta
private

The last Born phase space point used while presampling.

Definition at line 210 of file ShowerApproximationGenerator.h.

◆ theLastRandomNumbers

vector<double> Herwig::ShowerApproximationGenerator::theLastRandomNumbers
private

The random numbers which have produced the last Born phase space point.

Definition at line 216 of file ShowerApproximationGenerator.h.

◆ theMaxTry

unsigned long Herwig::ShowerApproximationGenerator::theMaxTry
private

The maximum number of trials to generate a splitting.

Definition at line 182 of file ShowerApproximationGenerator.h.

◆ thePhasespace

Ptr<MatchboxPhasespace>::ptr Herwig::ShowerApproximationGenerator::thePhasespace
private

The (invertible) phase space generator to use.

Definition at line 167 of file ShowerApproximationGenerator.h.

◆ thePresamplingPoints

unsigned long Herwig::ShowerApproximationGenerator::thePresamplingPoints
private

The number of points to presample this splitting generator.

Definition at line 177 of file ShowerApproximationGenerator.h.

◆ theShowerApproximation

Ptr<ShowerApproximation>::ptr Herwig::ShowerApproximationGenerator::theShowerApproximation
private

The shower approximation to consider.

Definition at line 162 of file ShowerApproximationGenerator.h.

Referenced by ffPtCut(), fiPtCut(), and iiPtCut().


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