Herwig 7.3.0
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The DipoleShowerHandler class manages the showering using the dipole shower algorithm. More...
#include <DipoleShowerHandler.h>
Classes | |
struct | RedoShower |
Indicate a problem in the shower. More... | |
Public Member Functions | |
DipoleShowerHandler () | |
The default constructor. | |
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. | |
DipoleVertexRecord & | vertexRecord () |
const DipoleVertexRecord & | vertexRecord () const |
Return the event record. | |
void | setMerger (Ptr< MergerBase >::ptr mh) |
Set the pointer to the Merging Helper. | |
const map< PPtr, size_t > & | particleIndices () const |
Return the dictionary for the incoming particles and outgoing partons in the event, will be empty if subleading Nc is turned off. | |
const cPDVector & | particlesAfter () const |
Return the particle data vector of the particles in the event, will be empty if subleading Nc is turned off. | |
DensityOperator & | densityOperator () |
Return the density operator from the event record. | |
const map< pair< vector< PDT::Colour >, pair< size_t, size_t > >, double > & | correlatorMap () const |
Return the colour matrix element correction map, will be empty if subleading Nc is turned off. | |
Ptr< ColourBasis >::tptr | colourBasis () |
Return the colour basis used in the density operator. | |
bool | continueSubleadingNc () const |
Return the continue subleading Nc flag from the event record. | |
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. | |
virtual bool | isReshuffling () const |
Return true, if this cascade handler will perform reshuffling from hard process masses. | |
virtual bool | retConstituentMasses () const |
Return true, if this cascade handler will put the final state particles to their constituent mass. | |
virtual bool | canHandleMatchboxTrunc () const |
Return true, if the shower handler can generate a truncated shower for POWHEG style events generated using Matchbox. | |
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. | |
bool | doesSplitHardProcess () const |
Information if the Showerhandler splits the hard process. | |
tDMPtr | decay (PerturbativeProcessPtr, DecayProcessMap &decay, bool radPhotons=false) const |
Decay a particle. | |
tDMPtr | findDecayMode (const string &tag) const |
Cached lookup of decay modes. | |
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. | |
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. | |
unsigned int | spinCorrelations () const |
Access to switches for spin correlations. | |
virtual bool | correlations () const |
Any correlations. | |
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. | |
bool | decaysInShower (long id) const |
Check if a particle decays in the shower. | |
Public Member Functions inherited from ThePEG::CascadeHandler | |
virtual void | handle (EventHandler &eh, const tPVector &tagged, const Hint &hint) |
virtual void | cascade ()=0 |
virtual double | reweightCKKW (int minMult, int maxMult) |
const tPVector & | tagged () const |
const Hint & | hint () const |
const PDF & | firstPDF () const |
const PDF & | secondPDF () 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) |
virtual bool | isReshuffling () const |
bool | didRunCascade () const |
virtual void | handle (EventHandler &eh, const tPVector &tagged, const Hint &hint) |
virtual void | cascade ()=0 |
virtual double | reweightCKKW (int minMult, int maxMult) |
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 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 |
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 |
Public Member Functions inherited from ThePEG::LastXCombInfo< typename XC > | |
const XC & | lastXComb () const |
tXCPtr | lastXCombPtr () const |
const XC & | lastHeadXComb () const |
tXCPtr | lastHeadXCombPtr () const |
const EventHandler & | lastEventHandler () const |
tPExtrPtr | lastExtractor () const |
PDFT | pdf (tcPPtr parton) const |
const Cuts & | lastCuts () const |
tCutsPtr | lastCutsPtr () const |
const PPair & | lastParticles () const |
Energy2 | lastS () const |
const PPair & | lastPartons () const |
Energy2 | lastSHat () const |
double | lastTau () const |
double | lastY () const |
double | lastP1 () const |
double | lastP2 () const |
double | lastL1 () const |
double | lastL2 () const |
double | lastX1 () const |
double | lastX2 () const |
double | lastE1 () const |
double | lastE2 () const |
double | lastFL1L2 () const |
Energy2 | lastScale () const |
double | lastAlphaS () const |
double | lastAlphaEM () const |
const vector< Lorentz5Momentum > & | meMomenta () const |
double | lastME2 () const |
double | lastPreweight () const |
double | jacobian () const |
CrossSection | lastMECrossSection () const |
double | lastMEPDFWeight () const |
double | lastMECouplings () const |
tSubProPtr | subProcess () const |
const cPDVector & | mePartonData () const |
const XC & | lastXComb () const |
tXCPtr | lastXCombPtr () const |
const XC & | lastHeadXComb () const |
tXCPtr | lastHeadXCombPtr () const |
const EventHandler & | lastEventHandler () const |
tPExtrPtr | lastExtractor () const |
PDFT | pdf (tcPPtr parton) const |
const Cuts & | lastCuts () const |
tCutsPtr | lastCutsPtr () const |
const PPair & | lastParticles () const |
Energy2 | lastS () const |
const PPair & | lastPartons () const |
Energy2 | lastSHat () const |
double | lastTau () const |
double | lastY () const |
double | lastP1 () const |
double | lastP2 () const |
double | lastL1 () const |
double | lastL2 () const |
double | lastX1 () const |
double | lastX2 () const |
double | lastE1 () const |
double | lastE2 () const |
double | lastFL1L2 () const |
Protected Types | |
typedef multimap< DipoleIndex, Ptr< DipoleSplittingGenerator >::ptr > | GeneratorMap |
Protected Member Functions | |
void | addCandidates (PPair particles, list< DipoleSplittingInfo > &clist) const |
Add the possible splitting candidates given a pair of emitting particles. | |
void | getCandidates (list< DipoleSplittingInfo > &clist) const |
Get all possible radiating dipoles. | |
void | performSplitting (DipoleSplittingInfo &) const |
Perform a splitting independent of any chains. | |
Energy | nextSubleadingSplitting (Energy hardPt, Energy optHardPt, Energy optCutoff, const bool decay) |
Generate the next subleading Nc improved splitting and return the scale. | |
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. | |
void | hardScalesSubleading (list< DipoleSplittingInfo > candidates, Energy hardPt) |
Setup the hard scales of the dipoles after subleading emissions. | |
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. | |
DipoleEventRecord & | eventRecord () |
Access the event record. | |
const DipoleEventRecord & | eventRecord () const |
Return the event record. | |
const vector< Ptr< DipoleSplittingKernel >::ptr > & | splittingKernels () const |
Return the splitting kernels. | |
const set< long > & | offShellPartons () |
Return the set of offshell parton ids. | |
bool | isMERegion (const Energy winnerScale, const DipoleSplittingInfo &winner, const list< Dipole >::iterator winnerDip) |
In a merging setup this function checks if the next shower configuration is part of the matrix element region. | |
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 (DipoleSplittingInfo &winner, 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. | |
virtual IBPtr | fullclone () const |
Make a clone of this object, possibly modifying the cloned object to make it sane. | |
Protected Member Functions inherited from Herwig::ShowerHandler | |
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. | |
void | unSetCurrentHandler () |
Unset the current handler. | |
tSubProPtr | currentSubProcess () const |
Return the currently used SubProcess. | |
tPPair | incomingBeams () const |
Access to the incoming beam particles. | |
void | combineWeights () |
Weight handling for shower variations. | |
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. | |
bool | includeSpaceTime () const |
Parameters for the space-time model. | |
Energy2 | vMin () const |
The minimum virtuality for the space-time model. | |
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. | |
void | createDecayProcess (PPtr parent, PerturbativeProcessPtr hard, DecayProcessMap &decay) const |
Find decay products from the hard process and create decay processes. | |
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 &) | |
ReferenceCounted & | operator= (const ReferenceCounted &) |
Protected Member Functions inherited from ThePEG::Named | |
const Named & | operator= (const Named &other) |
const string & | name (const string &newName) |
Friends | |
class | Merger |
Standard Interfaced functions. | |
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. | |
bool | discardNoEmissions |
Discard events which did not radiate. | |
bool | firstMCatNLOEmission |
Perform the first MC@NLO emission only. | |
bool | thePowhegDecayEmission |
True if powheg style emissions are to be used in the decays. | |
int | realignmentScheme |
Switch to record information required for the nearest neighbour analysis. | |
bool | doSubleadingNc |
Switch on or off subleading Nc corrections. | |
size_t | subleadingNcEmissionsLimit |
Number of emissions to do subleading Nc corrections to. | |
int | currentReferenceWeight |
Current reference weight used for partial unweighting of the subleading colour shower (updated each emission). | |
int | densityOperatorEvolution |
Integer used to set which method of evolving the density operator to use: 0 - Vijk is Eikonal but there is a cutoff. | |
Energy2 | densityOperatorCutoff |
Cutoff scale for the invariants (e.g. | |
bool | doPartialUnweightingAtEmission |
Switch on or off partial unweighting in after each subleading emission. | |
bool | doPartialUnweighting |
Switch on or off partial unweighting in the splitting generator. | |
double | referenceWeight |
Reference weight for the partial unweighting. | |
double | cmecReweightFactor |
Factor changing the acceptance probability for the veto algorithm. | |
double | negCMECScaling |
Scaling factor for the negative colour matrix element corrections. | |
int | verbosity |
The verbosity level. | |
int | printEvent |
See verbosity. | |
GeneratorMap | theGenerators |
The splitting generators indexed by the dipole indices they can work on. | |
DipoleEventRecord | theEventRecord |
The evnt record used. | |
DipoleVertexRecord | theVertexRecord |
The vertex record. | |
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. | |
vector< vector< std::tuple< Energy, double, bool > > > | theWeightsVector |
Vector of candidate splittings containing a vector of the weights, scale and a bool for every step in the reweighted veto algorithm. | |
size_t | winnerIndex |
Winning candidate index. | |
size_t | kernelIndex |
size_t | winningKernelIndex |
vector< Energy > | scales |
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. | |
set< long > | theColouredOffShellInShower |
PDG codes of the partons which can have an off-shell mass, this is fast storage for use during running. | |
vector< long > | theInputColouredOffShellInShower |
PDG codes of the partons which can have an off-shell mass, this is a vector that is interfaced so they can be changed. | |
int | theZBoundaries |
The choice of z boundaries; 0 = restricted, 1 = open, 2 = mixed/other. | |
static bool | firstWarn |
True if no warnings have been issued yet. | |
static ClassDescription< DipoleShowerHandler > | initDipoleShowerHandler |
The static object used to initialize the description of this class. | |
virtual void | doinit () |
Initialize this object after the setup phase before saving an EventGenerator to disk. | |
virtual void | doinitrun () |
Initialize this object. | |
virtual void | dofinish () |
Finalize this object. | |
DipoleShowerHandler & | operator= (const DipoleShowerHandler &)=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 Herwig::ShowerHandler | |
typedef pair< tRemPPtr, tRemPPtr > | RemPair |
Typedef for a pair of ThePEG::RemnantParticle pointers. | |
typedef multiset< tcPDPtr, ParticleOrdering > | OrderedParticles |
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< typename XC > | |
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 |
Static Public Member Functions inherited from Herwig::ShowerHandler | |
static const tShowerHandlerPtr | currentHandler () |
pointer to "this", the current ShowerHandler. | |
static bool | currentHandlerIsSet () |
pointer to "this", the current ShowerHandler. | |
static void | Init () |
The standard Init function used to initialize the interfaces. | |
Static Public Member Functions inherited from ThePEG::CascadeHandler | |
static void | setDidRunCascade (bool c) |
static void | Init () |
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 |
Static Protected Member Functions inherited from ThePEG::Interfaced | |
static void | registerRepository (IBPtr) |
static void | registerRepository (IBPtr, string newName) |
Protected Attributes inherited from ThePEG::LastXCombInfo< typename XC > | |
XCPtr | theLastXComb |
The DipoleShowerHandler class manages the showering using the dipole shower algorithm.
Definition at line 49 of file DipoleShowerHandler.h.
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protected |
Definition at line 207 of file DipoleShowerHandler.h.
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inline |
Insert an additional splitting kernel.
Definition at line 74 of file DipoleShowerHandler.h.
References kernels.
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inline |
Calculate the alpha_s value the shower uses for Q.
Definition at line 114 of file DipoleShowerHandler.h.
References ThePEG::sqr(), and theGlobalAlphaS.
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inlinevirtual |
Return true, if the shower handler can generate a truncated shower for POWHEG style events generated using Matchbox.
Reimplemented from Herwig::ShowerHandler.
Definition at line 95 of file DipoleShowerHandler.h.
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inlineprotectedvirtual |
The main method which manages the showering of a subprocess.
Definition at line 212 of file DipoleShowerHandler.h.
References Herwig::ShowerHandler::cascade(), and ThePEG::ZERO.
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protectedvirtual |
Make a simple clone of this object.
Reimplemented from Herwig::ShowerHandler.
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inline |
Return the colour basis used in the density operator.
NOT USED, REMOVE
Definition at line 172 of file DipoleShowerHandler.h.
References Herwig::DensityOperator::colourBasis(), Herwig::DipoleEventRecord::densityOperator(), and eventRecord().
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inline |
Return the continue subleading Nc flag from the event record.
Definition at line 179 of file DipoleShowerHandler.h.
References eventRecord(), and Herwig::DipoleEventRecord::getContinueSubleadingNc().
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inline |
Return the colour matrix element correction map, will be empty if subleading Nc is turned off.
NOT USED, REMOVE
Definition at line 165 of file DipoleShowerHandler.h.
References Herwig::DensityOperator::correlatorMap(), Herwig::DipoleEventRecord::densityOperator(), and eventRecord().
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inline |
Return the density operator from the event record.
Definition at line 159 of file DipoleShowerHandler.h.
References Herwig::DipoleEventRecord::densityOperator(), and eventRecord().
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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.
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protectedvirtual |
Initialize this object after the setup phase before saving an EventGenerator to disk.
InitException | if object could not be initialized properly. |
Reimplemented from Herwig::ShowerHandler.
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protectedvirtual |
Initialize this object.
Called in the run phase just before a run begins.
Reimplemented from Herwig::ShowerHandler.
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inlineprotected |
Access the event record.
Definition at line 263 of file DipoleShowerHandler.h.
References theEventRecord.
Referenced by colourBasis(), continueSubleadingNc(), correlatorMap(), densityOperator(), particleIndices(), and particlesAfter().
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inlineprotected |
Return the event record.
Definition at line 268 of file DipoleShowerHandler.h.
References theEventRecord.
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inlineprotected |
Return the evolution ordering.
Definition at line 243 of file DipoleShowerHandler.h.
References theEvolutionOrdering.
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protectedvirtual |
Make a clone of this object, possibly modifying the cloned object to make it sane.
Reimplemented from Herwig::ShowerHandler.
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inlineprotected |
Access the generator map.
Definition at line 258 of file DipoleShowerHandler.h.
References theGenerators.
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inlinevirtual |
Return the relevant hard scale to be used in the profile scales.
Reimplemented from Herwig::ShowerHandler.
Definition at line 106 of file DipoleShowerHandler.h.
References muPt.
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protected |
Setup the hard scales of the dipoles after subleading emissions.
//debug
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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.
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inlinevirtual |
Return true, if this cascade handler will perform reshuffling from hard process masses.
Reimplemented from Herwig::ShowerHandler.
Definition at line 101 of file DipoleShowerHandler.h.
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inline |
Return the number of scale dependent active flavours from the alpha_s object.
Definition at line 121 of file DipoleShowerHandler.h.
References ThePEG::sqr(), and theGlobalAlphaS.
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inlineprotected |
Return the set of offshell parton ids.
Definition at line 280 of file DipoleShowerHandler.h.
References theColouredOffShellInShower.
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privatedelete |
The assignment operator is private and must never be called.
In fact, it should not even be implemented.
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inline |
Return the dictionary for the incoming particles and outgoing partons in the event, will be empty if subleading Nc is turned off.
Definition at line 148 of file DipoleShowerHandler.h.
References eventRecord(), and Herwig::DipoleEventRecord::particleIndices().
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inline |
Return the particle data vector of the particles in the event, will be empty if subleading Nc is turned off.
Definition at line 154 of file DipoleShowerHandler.h.
References eventRecord(), and Herwig::DipoleEventRecord::particlesAfter().
void Herwig::DipoleShowerHandler::persistentInput | ( | PersistentIStream & | is, |
int | version | ||
) |
Function used to read in object persistently.
is | the persistent input stream read from. |
version | the version number of the object when written. |
void Herwig::DipoleShowerHandler::persistentOutput | ( | PersistentOStream & | os | ) | const |
Function used to write out object persistently.
os | the persistent output stream written to. |
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inline |
Set the pointer to the Merging Helper.
Used by the merging factory.
Definition at line 138 of file DipoleShowerHandler.h.
References theMergingHelper.
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inlineprotected |
Set the number of emissions.
Definition at line 315 of file DipoleShowerHandler.h.
References nEmissions.
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inlineprotectedvirtual |
The choice of z boundaries; 0 = restricted, 1 = open, 2 = mixed/other.
Reimplemented from Herwig::ShowerHandler.
Definition at line 299 of file DipoleShowerHandler.h.
References theZBoundaries.
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inlineprotected |
Return the splitting kernels.
Definition at line 273 of file DipoleShowerHandler.h.
References kernels.
|
inline |
Definition at line 126 of file DipoleShowerHandler.h.
|
inline |
Return the event record.
Definition at line 131 of file DipoleShowerHandler.h.
References theVertexRecord.
|
friend |
Definition at line 52 of file DipoleShowerHandler.h.
|
private |
Apply chain ordering to events from matrix element corrections.
Definition at line 461 of file DipoleShowerHandler.h.
|
private |
Factor changing the acceptance probability for the veto algorithm.
Definition at line 545 of file DipoleShowerHandler.h.
|
private |
The ConstituentReshuffler to be used.
Definition at line 445 of file DipoleShowerHandler.h.
|
private |
Current reference weight used for partial unweighting of the subleading colour shower (updated each emission).
Definition at line 509 of file DipoleShowerHandler.h.
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private |
Cutoff scale for the invariants (e.g.
pEmitter*pEmission) in the Eikonal dipole kernel, Vijk.
Definition at line 525 of file DipoleShowerHandler.h.
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private |
Integer used to set which method of evolving the density operator to use: 0 - Vijk is Eikonal but there is a cutoff.
1 - Vijk is Eikonal. 2 - Vijk=1 for all i,j,k. 3 - Semi-leading Nc, Vijk=0 for all
Definition at line 519 of file DipoleShowerHandler.h.
|
private |
Whether or not we did radiate anything.
Definition at line 596 of file DipoleShowerHandler.h.
|
private |
Whether or not we did realign the event.
Definition at line 601 of file DipoleShowerHandler.h.
|
private |
Discard events which did not radiate.
Definition at line 472 of file DipoleShowerHandler.h.
|
private |
Switch on or off partial unweighting in the splitting generator.
Definition at line 535 of file DipoleShowerHandler.h.
|
private |
Switch on or off partial unweighting in after each subleading emission.
Definition at line 530 of file DipoleShowerHandler.h.
|
private |
Switch on or off subleading Nc corrections.
Definition at line 498 of file DipoleShowerHandler.h.
|
private |
Perform the first MC@NLO emission only.
Definition at line 477 of file DipoleShowerHandler.h.
|
staticprivate |
True if no warnings have been issued yet.
Definition at line 664 of file DipoleShowerHandler.h.
|
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 709 of file DipoleShowerHandler.h.
|
private |
The intrinsic pt generator to be used.
Definition at line 450 of file DipoleShowerHandler.h.
|
private |
Definition at line 614 of file DipoleShowerHandler.h.
|
private |
The splitting kernels to be used.
Definition at line 435 of file DipoleShowerHandler.h.
Referenced by addSplitting(), and splittingKernels().
|
private |
The shower starting scale for the last event encountered.
Definition at line 669 of file DipoleShowerHandler.h.
|
private |
The shower hard scale for the last event encountered.
Definition at line 674 of file DipoleShowerHandler.h.
Referenced by hardScale().
|
private |
Scaling factor for the negative colour matrix element corrections.
Definition at line 550 of file DipoleShowerHandler.h.
|
private |
Limit the number of emissions.
Limit applied if > 0.
Definition at line 467 of file DipoleShowerHandler.h.
Referenced by setNEmissions().
|
private |
The number of shoer tries so far.
Definition at line 591 of file DipoleShowerHandler.h.
|
private |
See verbosity.
Definition at line 568 of file DipoleShowerHandler.h.
|
private |
Switch to record information required for the nearest neighbour analysis.
The realignment scheme
Definition at line 493 of file DipoleShowerHandler.h.
|
private |
Reference weight for the partial unweighting.
Definition at line 540 of file DipoleShowerHandler.h.
|
private |
Definition at line 616 of file DipoleShowerHandler.h.
|
private |
Number of emissions to do subleading Nc corrections to.
Definition at line 503 of file DipoleShowerHandler.h.
|
private |
PDG codes of the partons which can have an off-shell mass, this is fast storage for use during running.
Definition at line 690 of file DipoleShowerHandler.h.
Referenced by offShellPartons().
|
private |
The detuning factor applied to the sampling overestimate kernel.
Definition at line 649 of file DipoleShowerHandler.h.
|
private |
True, if sampler should apply compensation.
Definition at line 638 of file DipoleShowerHandler.h.
|
private |
The evnt record used.
Definition at line 581 of file DipoleShowerHandler.h.
Referenced by eventRecord().
|
private |
A pointer to the dipole event reweight object.
Definition at line 654 of file DipoleShowerHandler.h.
|
private |
The evolution ordering considered.
Definition at line 440 of file DipoleShowerHandler.h.
Referenced by evolutionOrdering().
|
private |
A freezing value for the factorization scale.
Definition at line 628 of file DipoleShowerHandler.h.
|
private |
Return the number of accepted points after which the grid should be frozen.
Definition at line 644 of file DipoleShowerHandler.h.
|
private |
The splitting generators indexed by the dipole indices they can work on.
Definition at line 576 of file DipoleShowerHandler.h.
Referenced by generators().
|
private |
A global alpha_s to be used for all splitting kernels.
Definition at line 455 of file DipoleShowerHandler.h.
|
private |
PDG codes of the partons which can have an off-shell mass, this is a vector that is interfaced so they can be changed.
Definition at line 696 of file DipoleShowerHandler.h.
|
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 683 of file DipoleShowerHandler.h.
Referenced by setMerger().
|
private |
True if powheg style emissions are to be used in the decays.
Definition at line 482 of file DipoleShowerHandler.h.
|
private |
A freezing value for the renormalization scale.
Definition at line 623 of file DipoleShowerHandler.h.
|
private |
The matching subtraction, if appropriate.
Definition at line 633 of file DipoleShowerHandler.h.
|
private |
A pointer to a global dipole splitting reweight.
Definition at line 659 of file DipoleShowerHandler.h.
|
private |
The vertex record.
Definition at line 586 of file DipoleShowerHandler.h.
Referenced by vertexRecord().
|
private |
Vector of candidate splittings containing a vector of the weights, scale and a bool for every step in the reweighted veto algorithm.
The bool is true for an accept step.
Definition at line 608 of file DipoleShowerHandler.h.
|
private |
The choice of z boundaries; 0 = restricted, 1 = open, 2 = mixed/other.
Definition at line 701 of file DipoleShowerHandler.h.
Referenced by showerPhaseSpaceOption().
|
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 563 of file DipoleShowerHandler.h.
|
private |
Winning candidate index.
Definition at line 613 of file DipoleShowerHandler.h.
|
private |
Definition at line 615 of file DipoleShowerHandler.h.