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Herwig  7.1.4

The DipoleShowerHandler class manages the showering using the dipole shower algorithm. More...

#include <DipoleShowerHandler.h>

Inheritance diagram for Herwig::DipoleShowerHandler:

Classes

struct  RedoShower
 Indicate a problem in the shower. More...
 

Public Member Functions

void colourPrint ()
 
void addSplitting (Ptr< DipoleSplittingKernel >::ptr sp)
 Insert an additional splitting kernel.
 
void resetAlphaS (Ptr< AlphaSBase >::tptr)
 Reset the alpha_s for all splitting kernels.
 
virtual void cascade (tPVector)
 
void resetReweight (Ptr< DipoleSplittingReweight >::tptr)
 Reset the splitting reweight for all splitting kernels.
 
virtual bool canHandleMatchboxTrunc () const
 Return true, if the shower handler can generate a truncated shower for POWHEG style events generated using Matchbox.
 
virtual bool isReshuffling () const
 Return true, if this cascade handler will perform reshuffling from hard process masses.
 
virtual Energy hardScale () const
 Return the relevant hard scale to be used in the profile scales.
 
double as (Energy Q) const
 Calculate the alpha_s value the shower uses for Q.
 
double Nf (Energy Q) const
 Return the number of scale dependent active flavours from the alpha_s object.
 
void setMerger (Ptr< MergerBase >::ptr mh)
 Set the pointer to the Merging Helper. More...
 
Standard constructors and destructors.
 DipoleShowerHandler ()
 The default constructor.
 
virtual ~DipoleShowerHandler ()
 The destructor.
 
Functions used by the persistent I/O system.
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 Herwig::ShowerHandler
 ShowerHandler ()
 Default constructor.
 
virtual ~ShowerHandler ()
 Destructor.
 
virtual void cascade ()
 The main method which manages the multiple interactions and starts the shower by calling cascade(sub, lastXC).
 
virtual bool showerHardProcessVeto () const
 Hook to allow vetoing of event after showering hard sub-process as in e.g. More...
 
Energy pdfFreezingScale () const
 Get the PDF freezing scale.
 
PDFPtr getPDFA () const
 Get the local PDFs.
 
PDFPtr getPDFB () const
 Get the local PDFs.
 
bool firstInteraction () const
 Return true if currently the primary subprocess is showered.
 
tHwRemDecPtr remnantDecayer () const
 Return the remnant decayer.
 
void splitHardProcess (tPVector tagged, PerturbativeProcessPtr &hard, DecayProcessMap &decay) const
 Split the hard process into production and decays. More...
 
bool doesSplitHardProcess () const
 Information if the Showerhandler splits the hard process.
 
tDMPtr decay (PerturbativeProcessPtr, DecayProcessMap &decay, bool radPhotons=false) const
 Decay a particle. More...
 
tDMPtr findDecayMode (const string &tag) const
 Cached lookup of decay modes. More...
 
map< string, ShowerVariation > & showerVariations ()
 Access the shower variations.
 
const map< string, ShowerVariation > & showerVariations () const
 Return the shower variations.
 
map< string, double > & currentWeights ()
 Access the current Weights.
 
const map< string, double > & currentWeights () const
 Return the current Weights.
 
void reweight (double w)
 Change the current reweighting factor.
 
double reweight () const
 Return the current reweighting factor.
 
bool decaysInShower (long id) const
 Check if a particle decays in the shower. More...
 
bool doRadiation () const
 Switch for any radiation.
 
bool doFSR () const
 Switch on or off final state radiation.
 
bool doISR () const
 Switch on or off initial state radiation.
 
bool hardScaleIsMuF () const
 Return true if maximum pt should be deduced from the factorization scale.
 
double factorizationScaleFactor () const
 The factorization scale factor.
 
double renFac () const
 The renormalization scale factor.
 
double facFac () const
 The factorization scale factor.
 
double renormalizationScaleFactor () const
 The renormalization scale factor.
 
double hardScaleFactor () const
 The scale factor for the hard scale.
 
bool restrictPhasespace () const
 Return true, if the phase space restrictions of the dipole shower should be applied.
 
Ptr< HardScaleProfile >::tptr profileScales () const
 Return profile scales.
 
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::CascadeHandler
virtual double reweightCKKW (int minMult, int maxMult)
 
virtual void handle (EventHandler &eh, const tPVector &tagged, const Hint &hint)
 
virtual void handle (EventHandler &eh, const tPVector &tagged, const Hint &hint)
 
const tPVectortagged () const
 
const Hinthint () const
 
const PDFfirstPDF () const
 
const PDFsecondPDF () const
 
const pair< PDF, PDF > & pdfs () const
 
void resetPDFs (const pair< tcPDFPtr, tcPDFPtr > &pdfpair)
 
void resetPDFs (const pair< tcPDFPtr, tcPDFPtr > &pdfpair, PBPair ppair)
 
void setXComb (tXCombPtr xc)
 
bool didRunCascade () const
 
- Public Member Functions inherited from ThePEG::StepHandler
tEHPtr eventHandler () const
 
void eventHandler (tEHPtr)
 
tStepPtr newStep ()
 
tStepPtr currentStep ()
 
tEHPtr eventHandler () const
 
void eventHandler (tEHPtr)
 
tStepPtr newStep ()
 
tStepPtr currentStep ()
 
- Public Member Functions inherited from 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 StandardModelBase & SM () 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
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
- Public Member Functions inherited from ThePEG::InterfacedBase
string fullName () const
 
string name () const
 
string path () const
 
string comment () const
 
void setup (istream &is)
 
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
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
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
 
void persistentOutput (PersistentOStream &os) const
 
void persistentInput (PersistentIStream &is, int version)
 
- Public Member Functions inherited from ThePEG::Base
void debug () const
 
- Public Member Functions inherited from ThePEG::Pointer::ReferenceCounted
CounterType referenceCount () const
 
- Public Member Functions inherited from ThePEG::Named
 Named (const string &newName=string())
 
const string & name () const
 
bool operator== (const Named &other) const
 
bool operator< (const Named &other) const
 
- Public Member Functions inherited from ThePEG::LastXCombInfo<>
const XC & lastXComb () const
 
const XC & lastXComb () const
 
tXCPtr lastXCombPtr () const
 
tXCPtr lastXCombPtr () const
 
const XC & lastHeadXComb () const
 
const XC & lastHeadXComb () const
 
tXCPtr lastHeadXCombPtr () const
 
tXCPtr lastHeadXCombPtr () const
 
const EventHandlerlastEventHandler () const
 
const EventHandlerlastEventHandler () const
 
tPExtrPtr lastExtractor () const
 
tPExtrPtr lastExtractor () const
 
PDFT pdf (tcPPtr parton) const
 
PDFT pdf (tcPPtr parton) const
 
const CutslastCuts () const
 
const CutslastCuts () const
 
tCutsPtr lastCutsPtr () const
 
tCutsPtr lastCutsPtr () const
 
const PPairlastParticles () const
 
const PPairlastParticles () const
 
Energy2 lastS () const
 
Energy2 lastS () const
 
const PPairlastPartons () const
 
const PPairlastPartons () const
 
Energy2 lastSHat () const
 
Energy2 lastSHat () const
 
double lastTau () const
 
double lastTau () const
 
double lastY () const
 
double lastY () const
 
double lastP1 () const
 
double lastP1 () const
 
double lastP2 () const
 
double lastP2 () const
 
double lastL1 () const
 
double lastL1 () const
 
double lastL2 () const
 
double lastL2 () const
 
double lastX1 () const
 
double lastX1 () const
 
double lastX2 () const
 
double lastX2 () const
 
double lastE1 () const
 
double lastE1 () const
 
double lastE2 () const
 
double lastE2 () const
 
double lastFL1L2 () const
 
double lastFL1L2 () const
 
Energy2 lastScale () const
 
Energy2 lastScale () const
 
double lastAlphaS () const
 
double lastAlphaS () const
 
double lastAlphaEM () const
 
double lastAlphaEM () const
 
const vector< Lorentz5Momentum > & meMomenta () const
 
const vector< Lorentz5Momentum > & meMomenta () const
 
double lastME2 () const
 
double lastME2 () const
 
double lastPreweight () const
 
double lastPreweight () const
 
double jacobian () const
 
double jacobian () const
 
CrossSection lastMECrossSection () const
 
CrossSection lastMECrossSection () const
 
double lastMEPDFWeight () const
 
double lastMEPDFWeight () const
 
double lastMECouplings () const
 
double lastMECouplings () const
 
tSubProPtr subProcess () const
 
tSubProPtr subProcess () const
 
const cPDVectormePartonData () const
 
const cPDVectormePartonData () const
 

Static Public Member Functions

static void Init ()
 The standard Init function used to initialize the interfaces. More...
 
- Static Public Member Functions inherited from Herwig::ShowerHandler
static const tShowerHandlerPtr currentHandler ()
 pointer to "this", the current ShowerHandler.
 
static void Init ()
 The standard Init function used to initialize the interfaces. More...
 
- Static Public Member Functions inherited from ThePEG::CascadeHandler
static void Init ()
 
static void setDidRunCascade (bool c)
 
- 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 ()
 

Protected Types

typedef multimap< DipoleIndex, Ptr< DipoleSplittingGenerator >::ptr > GeneratorMap
 

Protected Member Functions

virtual tPPair cascade (tSubProPtr sub, XCombPtr xcomb)
 The main method which manages the showering of a subprocess.
 
tPPair cascade (tSubProPtr sub, XCombPtr xcomb, Energy optHardPt, Energy optCutoff)
 The main method which manages the showering of a subprocess.
 
void getGenerators (const DipoleIndex &, Ptr< DipoleSplittingReweight >::tptr rw=Ptr< DipoleSplittingReweight >::tptr())
 Build splitting generators for the given dipole index.
 
void hardScales (Energy2 scale)
 Setup the hard scales.
 
Ptr< DipoleEvolutionOrdering >::tptr evolutionOrdering () const
 Return the evolution ordering.
 
void constituentReshuffle ()
 Reshuffle to constituent mass shells.
 
void decayConstituentReshuffle (PerturbativeProcessPtr decayProc)
 Reshuffle to constituent mass shells.
 
GeneratorMap & generators ()
 Access the generator map.
 
DipoleEventRecordeventRecord ()
 Access the event record.
 
const DipoleEventRecordeventRecord () const
 Return the event record.
 
const vector< Ptr< DipoleSplittingKernel >::ptr > & splittingKernels () const
 Return the splitting kernels.
 
bool realign ()
 Realign the event such as to have the incoming partons along thre beam axes.
 
virtual int showerPhaseSpaceOption () const
 The choice of z boundaries; 0 = restricted, 1 = open, 2 = mixed/other.
 
void doCascade (unsigned int &emDone, Energy optHardPt=ZERO, Energy optCutoff=ZERO, const bool decay=false)
 Perform the cascade.
 
void setNEmissions (unsigned int n)
 Set the number of emissions.
 
Energy getWinner (DipoleSplittingInfo &winner, const Dipole &dip, pair< bool, bool > conf, Energy optHardPt=ZERO, Energy optCutoff=ZERO)
 Get the winning splitting for the given dipole and configuration.
 
Energy getWinner (SubleadingSplittingInfo &winner, Energy optHardPt=ZERO, Energy optCutoff=ZERO)
 Get the winning splitting for the given dipole and configuration.
 
Energy getWinner (DipoleSplittingInfo &winner, const DipoleIndex &index, double emitterX, double spectatorX, pair< bool, bool > conf, tPPtr emitter, tPPtr spectator, Energy startScale, Energy optHardPt=ZERO, Energy optCutoff=ZERO)
 Get the winning splitting for the given dipole and configuration.
 
Clone Methods.
virtual IBPtr clone () const
 Make a simple clone of this object. More...
 
virtual IBPtr fullclone () const
 Make a clone of this object, possibly modifying the cloned object to make it sane. More...
 
Standard Interfaced functions.
virtual void doinit ()
 Initialize this object after the setup phase before saving an EventGenerator to disk. More...
 
virtual void doinitrun ()
 Initialize this object. More...
 
virtual void dofinish ()
 Finalize this object. More...
 
- Protected Member Functions inherited from Herwig::ShowerHandler
void combineWeights ()
 Weight handling for shower variations. More...
 
void initializeWeights ()
 Initialise the weights in currentEvent()
 
void resetWeights ()
 Reset the current weights.
 
unsigned int maxtry () const
 Return the maximum number of attempts for showering a given subprocess.
 
virtual tPPair cascade (tSubProPtr sub, XCPtr xcomb)
 The main method which manages the showering of a subprocess.
 
void prepareCascade (tSubProPtr sub)
 Set up for the cascade.
 
void boostCollision (bool boost)
 Boost all the particles in the collision so that the collision always occurs in the rest frame with the incoming particles along the z axis.
 
void setCurrentHandler ()
 Set/unset the current shower handler. More...
 
void unSetCurrentHandler ()
 Unset the current handler.
 
bool isMPIOn () const
 Return true if multiple parton interactions are switched on and can be used for this beam setup.
 
tUEBasePtr getMPIHandler () const
 Access function for the MPIHandler, it should only be called after checking with isMPIOn.
 
bool isResolvedHadron (tPPtr)
 Is a beam particle where hadronic structure is resolved.
 
RemPair getRemnants (PBIPair incbins)
 Get the remnants from the ThePEG::PartonBinInstance es and do some checks.
 
void setMPIPDFs ()
 Reset the PDF's after the hard collision has been showered.
 
void findDecayProducts (PPtr parent, PerturbativeProcessPtr hard, DecayProcessMap &decay) const
 Members to handle splitting up of hard process and decays. More...
 
void createDecayProcess (PPtr parent, PerturbativeProcessPtr hard, DecayProcessMap &decay) const
 Find decay products from the hard process and create decay processes. More...
 
tSubProPtr currentSubProcess () const
 Return the currently used SubProcess.
 
tPPair incomingBeams () const
 Access to the incoming beam particles.
 
- 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
 InterfacedBase (string newName)
 
 InterfacedBase (const InterfacedBase &i)
 
virtual void readSetup (istream &is)
 
virtual void doupdate ()
 
virtual IVector getReferences ()
 
virtual void rebind (const TranslationMap &)
 
virtual void readSetup (istream &is)
 
virtual void doupdate ()
 
virtual IVector getReferences ()
 
virtual void rebind (const TranslationMap &)
 
- Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted
 ReferenceCounted (const ReferenceCounted &)
 
ReferenceCountedoperator= (const 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)
 

Private Member Functions

DipoleShowerHandleroperator= (const DipoleShowerHandler &)
 The assignment operator is private and must never be called. More...
 

Private Attributes

vector< Ptr< DipoleSplittingKernel >::ptr > kernels
 The splitting kernels to be used.
 
Ptr< DipoleEvolutionOrdering >::ptr theEvolutionOrdering
 The evolution ordering considered.
 
Ptr< ConstituentReshuffler >::ptr constituentReshuffler
 The ConstituentReshuffler to be used.
 
Ptr< IntrinsicPtGenerator >::ptr intrinsicPtGenerator
 The intrinsic pt generator to be used.
 
Ptr< AlphaSBase >::ptr theGlobalAlphaS
 A global alpha_s to be used for all splitting kernels.
 
bool chainOrderVetoScales
 Apply chain ordering to events from matrix element corrections.
 
unsigned int nEmissions
 Limit the number of emissions. More...
 
bool discardNoEmissions
 Discard events which did not radiate.
 
bool firstMCatNLOEmission
 Perform the first MC emission only.
 
bool thePowhegDecayEmission
 True if powheg style emissions are to be used in the decays.
 
int realignmentScheme
 The realignment scheme.
 
int verbosity
 The verbosity level. More...
 
int printEvent
 See verbosity.
 
GeneratorMap theGenerators
 The splitting generators indexed by the dipole indices they can work on.
 
DipoleEventRecord theEventRecord
 The evnt record used.
 
unsigned int nTries
 The number of shoer tries so far.
 
bool didRadiate
 Whether or not we did radiate anything.
 
bool didRealign
 Whether or not we did realign the event.
 
Energy theRenormalizationScaleFreeze
 A freezing value for the renormalization scale.
 
Energy theFactorizationScaleFreeze
 A freezing value for the factorization scale.
 
Ptr< ShowerApproximation >::tptr theShowerApproximation
 The matching subtraction, if appropriate.
 
bool theDoCompensate
 True, if sampler should apply compensation.
 
unsigned long theFreezeGrid
 Return the number of accepted points after which the grid should be frozen.
 
double theDetuning
 The detuning factor applied to the sampling overestimate kernel.
 
Ptr< DipoleEventReweight >::ptr theEventReweight
 A pointer to the dipole event reweight object.
 
Ptr< DipoleSplittingReweight >::ptr theSplittingReweight
 A pointer to a global dipole splitting reweight.
 
Energy maxPt
 The shower starting scale for the last event encountered.
 
Energy muPt
 The shower hard scale for the last event encountered.
 
Ptr< MergerBase >::ptr theMergingHelper
 The merging helper takes care of merging multiple LO and NLO cross sections. More...
 
int theZBoundaries
 The choice of z boundaries; 0 = restricted, 1 = open, 2 = mixed/other.
 

Static Private Attributes

static bool firstWarn
 True if no warnings have been issued yet.
 
static ClassDescription< DipoleShowerHandlerinitDipoleShowerHandler
 The static object used to initialize the description of this class. More...
 

Friends

class Merger
 

Additional Inherited Members

- Public Types inherited from Herwig::ShowerHandler
typedef pair< tRemPPtr, tRemPPtr > RemPair
 Typedef for a pair of ThePEG::RemnantParticle pointers.
 
typedef multiset< tcPDPtr, ParticleOrderingOrderedParticles
 A container for ordered particles required for constructing tags for decay mode lookup.
 
- Public Types inherited from ThePEG::InterfacedBase
enum  InitState
 
- Public Types inherited from ThePEG::Pointer::ReferenceCounted
typedef unsigned int CounterType
 
- Public Types inherited from ThePEG::LastXCombInfo<>
typedef ThePEG::Ptr< XC >::pointer XCPtr
 
typedef ThePEG::Ptr< XC >::const_pointer cXCPtr
 
typedef ThePEG::Ptr< XC >::transient_pointer tXCPtr
 
typedef ThePEG::Ptr< XC >::transient_const_pointer tcXCPtr
 
- Public Attributes inherited from ThePEG::InterfacedBase
 initializing
 
 uninitialized
 
 initialized
 
 runready
 
- Public Attributes inherited from ThePEG::Pointer::ReferenceCounted
const unsigned long uniqueId
 
- Static Protected Member Functions inherited from ThePEG::Interfaced
static void registerRepository (IBPtr)
 
static void registerRepository (IBPtr, string newName)
 
- Protected Attributes inherited from ThePEG::LastXCombInfo<>
XCPtr theLastXComb
 

Detailed Description

The DipoleShowerHandler class manages the showering using the dipole shower algorithm.

Author
Simon Platzer, Stephen Webster
See also
The interfaces defined for DipoleShowerHandler.

Definition at line 44 of file DipoleShowerHandler.h.

Member Function Documentation

◆ clone()

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

Make a simple clone of this object.

Returns
a pointer to the new object.

Reimplemented from Herwig::ShowerHandler.

◆ dofinish()

virtual void Herwig::DipoleShowerHandler::dofinish ( )
protectedvirtual

Finalize this object.

Called in the run phase just after a run has ended. Used eg. to write out statistics.

Reimplemented from Herwig::ShowerHandler.

◆ doinit()

virtual void Herwig::DipoleShowerHandler::doinit ( )
protectedvirtual

Initialize this object after the setup phase before saving an EventGenerator to disk.

Exceptions
InitExceptionif object could not be initialized properly.

Reimplemented from Herwig::ShowerHandler.

◆ doinitrun()

virtual void Herwig::DipoleShowerHandler::doinitrun ( )
protectedvirtual

Initialize this object.

Called in the run phase just before a run begins.

Reimplemented from Herwig::ShowerHandler.

◆ fullclone()

virtual IBPtr Herwig::DipoleShowerHandler::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 Herwig::ShowerHandler.

◆ Init()

static void Herwig::DipoleShowerHandler::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=()

DipoleShowerHandler& Herwig::DipoleShowerHandler::operator= ( const DipoleShowerHandler )
private

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

◆ persistentInput()

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

Function used to write out object persistently.

Parameters
osthe persistent output stream written to.

◆ setMerger()

void Herwig::DipoleShowerHandler::setMerger ( Ptr< MergerBase >::ptr  mh)
inline

Set the pointer to the Merging Helper.

Used by the merging factory.

Definition at line 131 of file DipoleShowerHandler.h.

Member Data Documentation

◆ initDipoleShowerHandler

ClassDescription<DipoleShowerHandler> Herwig::DipoleShowerHandler::initDipoleShowerHandler
staticprivate

The static object used to initialize the description of this class.

Indicates that this is a concrete class with persistent data.

Definition at line 517 of file DipoleShowerHandler.h.

◆ nEmissions

unsigned int Herwig::DipoleShowerHandler::nEmissions
private

Limit the number of emissions.

Limit applied if > 0.

Definition at line 371 of file DipoleShowerHandler.h.

◆ theMergingHelper

Ptr<MergerBase>::ptr Herwig::DipoleShowerHandler::theMergingHelper
private

The merging helper takes care of merging multiple LO and NLO cross sections.

Here we need to check if an emission would radiate in the matrix element region of an other multipicity. If so, the emission is vetoed.

Definition at line 504 of file DipoleShowerHandler.h.

◆ verbosity

int Herwig::DipoleShowerHandler::verbosity
private

The verbosity level.

0 - print no info 1 - print diagnostic information on setting up splitting generators etc. 2 - print detailed event information for up to printEvent events. 3 - print dipole chains after each splitting.

Definition at line 404 of file DipoleShowerHandler.h.


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