Here is the documentation of the AlpGenHandlerOL class. More...

#include <AlpGenHandlerOL.h>

Inheritance diagram for Herwig::AlpGenHandlerOL:

[legend]

Public Member Functions
	AlpGenHandlerOL ()
	The default constructor.

Public Member Functions inherited from Herwig::QTildeShowerHandler
	QTildeShowerHandler ()
	The default constructor.

void	fillEventRecord ()
	At the end of the Showering, transform ShowerParticle objects into ThePEG particles and fill the event record with them.

virtual Energy	hardScale () const
	Return the relevant hard scale to be used in the profile scales.

virtual bool	showerHardProcessVeto () const
	Hook to allow vetoing of event after showering hard sub-process as in e.g.

virtual HardTreePtr	generateCKKW (ShowerTreePtr tree) const
	Generate hard emissions for CKKW etc.

virtual void	showerHardProcess (ShowerTreePtr, XCPtr)
	Members to perform the shower.

virtual void	showerDecay (ShowerTreePtr)
	Perform the shower of a decay.

tSplittingGeneratorPtr	splittingGenerator () const
	Access to the flags and shower variables.

int	hardEmission () const
	Mode for hard emissions.

virtual void	connectTrees (ShowerTreePtr showerTree, HardTreePtr hardTree, bool hard)
	Connect the Hard and Shower trees.

unsigned int	softCorrelations () const
	Access to switches for spin correlations.

virtual bool	correlations () const
	Any correlations.

tKinematicsReconstructorPtr	kinematicsReconstructor () const
	Access methods to access the objects.

tPartnerFinderPtr	partnerFinder () const
	Access to the PartnerFinder object.

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.

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.

virtual int	showerPhaseSpaceOption () const
	Return information about shower phase space choices.

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.

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

Clone Methods.
static ClassDescription< AlpGenHandlerOL >	initAlpGenHandlerOL
	The static object used to initialize the description of this class.

PPair	preshowerISPs_
	Initial-state incoming partons prior to showering (i.e.

ParticleVector	preshowerFSPs_
	Final-state outgoing partICLEs prior to showering (i.e.

ParticleVector	preshowerFSPsToDelete_
	Final-state outgoing partICLEs prior to showering to_be_removed from preShowerFSPs_ prior to the light-parton-light-jet matching step.

PPair	showeredISHs_
	Initial-state incoming hadrons after shower of hard process (eventHandler()->currentEvent()->incoming()).

PPair	showeredISPs_
	Initial-state incoming partons after shower of hard process (look for partonic children of showeredISHs_).

tPVector	showeredFSPs_
	Final-state outgoing partICLEs after shower of hard process (eventHandler()->currentEvent()->getFinalState()).

ParticleVector	showeredFSPsToDelete_
	Final-state outgoing partICLEs after shower of hard process to_be_removed from showeredFSPs_ prior to the light-parton-light-jet matching step.

ParticleVector	partonsToMatch_
	ONLY the final-state partons from preshowerFSPs_ that are supposed to enter the jet-parton matching.

PPtr	theProgenitor

PPtr	theLastProgenitor

tPVector	particlesToCluster_
	ONLY the final-state particles from showeredFSPs_ (and maybe also showeredRems_) that are supposed to go for jet clustering.

PPair	showeredRems_
	Final-state remnants after shower of hard process (look for remnants initially in showeredFSPs_).

ShowerAlphaPtr	alphaS_
	Pointer to the object calculating the strong coupling.

Energy	pdfScale_
	Information extracted from the XComb object.

Energy2	sHat_
	Centre of mass energy.

double	alphaSME_
	Constant alphaS used to generate LH events - if not already using CKKW scale (ickkw = 1 in AlpGen for example).

unsigned int	ncy_

unsigned int	ncphi_

int	ihvy_

int	nph_

int	nh_

Energy	etclus_

Energy	etclusmean_

Energy	epsetclus_

unsigned int	smoothingtype_

double	rclus_

double	etaclmax_

double	rclusfactor_

int	ihrd_

int	njets_

double	drjmin_

bool	highestMultiplicity_

int	highestNjets_

bool	highestNLOMultiplicity_

bool	etclusfixed_

double	ycmax_

double	ycmin_

int	jetAlgorithm_

bool	vetoIsTurnedOff_

int	vetoType_

bool	inputIsNLO_

vector< double >	cphcal_

vector< double >	sphcal_

vector< double >	cthcal_

vector< double >	sthcal_

vector< vector< Energy > >	et_

vector< vector< int > >	jetIdx_

vector< Lorentz5Momentum >	pjet_

ParticleVector	tmpList_

vector< Energy >	etjet_

double	dely_

double	delphi_

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.

bool	lightJetPartonVeto ()

double	partonJetDeltaR (ThePEG::tPPtr partonptr, LorentzMomentum jetmom) const

void	calini_m () const
	c++ translation of subroutine of same name from alpsho.f.

void	calsim_m () const
	c++ translation of subroutine of same name from alpsho.f.

void	getFastJets (double rjet, Energy ejcut, double etajcut) const
	Find jets using the FastJet package on particlesToCluster_.

void	getjet_m (double rjet, Energy ejcut, double etajcut) const
	c++ translation of subroutine of same name from alpsho.f.

void	caldel_m () const
	Deletes particles from partonsToMatch_ and particlesToCluster_ vectors so that these contain only the partons to match to the jets and the particles used to build jets respectively.

void	caldel_hvq () const
	c++ translation of subroutine of same name from alpsho.f.

void	getPreshowerParticles () const
	Get the particles from lastXCombPtr filling the pair preshowerISPs_ and particle pointer vector preshowerFSPs_.

void	getShoweredParticles () const
	Get the particles from eventHandler()->currentEvent()->... filling the particle pairs showeredISHs_, showeredISPs_, showeredRems_ and the particle pointer vector showeredFSPs_.

void	doSanityChecks (int debugLevel) const
	Allows printing of debug output and sanity checks like total momentum consrvation to be carried out.

void	getDescendents (PPtr theParticle) const
	Given a pointer to a particle this finds all its final state descendents.

void	getTopRadiation (PPtr theParticle) const
	Accumulates all descendents of tops down to the b and W but not including them.

ParticleVector	pTsort (ParticleVector unsortedVec)
	Sorts a given vector of particles by descending pT or ETJET.

pair< vector< Energy >, vector< Lorentz5Momentum > >	ETsort (vector< Energy > unsortedetjet, vector< Lorentz5Momentum > unsortedVec)

void	printMomVec (vector< Lorentz5Momentum > momVec)

Energy	etclusran_ (double petc) const

AlpGenHandlerOL &	operator= (const AlpGenHandlerOL &)=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.

Standard Interfaced functions.
virtual bool	showerHardProcessVeto () const
	Hook to allow vetoing of event after showering hard sub-process as in e.g.

virtual void	dofinish ()
	Finalize the object.

virtual void	doinit ()
	Initialize this object after the setup phase before saving an EventGenerator to disk.

virtual void	doinitrun ()
	Initialize this object.

Additional Inherited Members
Public Types inherited from Herwig::QTildeShowerHandler
typedef Ptr< XComb >::pointer	XCPtr
	Pointer to an XComb object.

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::QTildeShowerHandler
static void	Init ()
	The standard Init function used to initialize the interfaces.

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

Protected Member Functions inherited from Herwig::QTildeShowerHandler
void	doShowering (bool hard, XCPtr)
	Perform the shower.

virtual RealEmissionProcessPtr	hardMatrixElementCorrection (bool)
	Generate the hard matrix element correction.

virtual void	hardestEmission (bool hard)
	Generate the hardest emission.

void	setupMECorrection (RealEmissionProcessPtr real)
	Set up for applying a matrix element correction.

virtual vector< ShowerProgenitorPtr >	setupShower (bool hard)
	Extract the particles to be showered, set the evolution scales and apply the hard matrix element correction.

virtual void	setEvolutionPartners (bool hard, ShowerInteraction, bool clear)
	set the colour partners

virtual bool	timeLikeShower (tShowerParticlePtr particle, ShowerInteraction, Branching fb, bool first)
	Methods to perform the evolution of an individual particle, including recursive calling on the products.

virtual bool	spaceLikeShower (tShowerParticlePtr particle, PPtr beam, ShowerInteraction)
	It does the backward evolution of the space-like input particle (and recursively for all its time-like radiation products).

virtual bool	spaceLikeDecayShower (tShowerParticlePtr particle, const ShowerParticle::EvolutionScales &maxScales, Energy minimumMass, ShowerInteraction, Branching fb)
	If does the forward evolution of the input on-shell particle involved in a decay (and recursively for all its time-like radiation products).

virtual bool	truncatedTimeLikeShower (tShowerParticlePtr particle, HardBranchingPtr branch, ShowerInteraction type, Branching fb, bool first)
	Truncated shower from a time-like particle.

virtual bool	truncatedSpaceLikeShower (tShowerParticlePtr particle, PPtr beam, HardBranchingPtr branch, ShowerInteraction type)
	Truncated shower from a space-like particle.

virtual bool	truncatedSpaceLikeDecayShower (tShowerParticlePtr particle, const ShowerParticle::EvolutionScales &maxScales, Energy minimumMass, HardBranchingPtr branch, ShowerInteraction type, Branching fb)
	Truncated shower from a time-like particle.

bool	MECOn () const
	Switches for matrix element corrections.

bool	hardMEC () const
	Any hard ME correction?

bool	softMEC () const
	Any soft ME correction?

bool	isTruncatedShowerON () const
	Is the truncated shower on?

bool	ipTon () const
	Switch for intrinsic pT.

void	addVeto (ShowerVetoPtr v)
	Insert a veto.

void	removeVeto (ShowerVetoPtr v)
	Remove a veto.

bool	hardVetoReadOption () const
	Switches for vetoing hard emissions.

double	initialStateRadiationEnhancementFactor () const
	Enhancement factors for radiation needed to generate the soft matrix element correction.

double	finalStateRadiationEnhancementFactor () const
	Access the enhancement factor for final-state radiation.

void	initialStateRadiationEnhancementFactor (double in)
	Set the enhancement factor for initial-state radiation.

void	finalStateRadiationEnhancementFactor (double in)
	Set the enhancement factor for final-state radiation.

tHardTreePtr	hardTree ()
	Access to set/get the HardTree currently beinging showered.

void	hardTree (tHardTreePtr in)
	The HardTree currently being showered.

Ptr< BeamParticleData >::const_pointer	beamParticle () const
	Access/set the beam particle for the current initial-state shower.

void	setBeamParticle (Ptr< BeamParticleData >::const_pointer in)
	Set the beam particle data.

tShowerTreePtr	currentTree ()
	Set/Get the current tree being evolver for inheriting classes.

void	currentTree (tShowerTreePtr tree)
	Set the tree.

unsigned int	maximumTries () const
	Access the maximum number of attempts to generate the shower.

ShowerProgenitorPtr	progenitor ()
	Set/Get the ShowerProgenitor for the current shower.

void	progenitor (ShowerProgenitorPtr in)
	Set the progenitor.

virtual void	generateIntrinsicpT (vector< ShowerProgenitorPtr >)
	Calculate the intrinsic \(p_T\).

map< tShowerProgenitorPtr, pair< Energy, double > > &	intrinsicpT ()
	Access to the intrinsic \(p_T\) for inheriting classes.

void	setupMaximumScales (const vector< ShowerProgenitorPtr > &, XCPtr)
	find the maximally allowed pt acc to the hard process.

void	setupHardScales (const vector< ShowerProgenitorPtr > &, XCPtr)
	find the relevant hard scales for profile scales.

void	convertHardTree (bool hard, ShowerInteraction type)
	Convert the HardTree into an extra shower emission.

PPtr	findFirstParton (tPPtr seed) const
	Find the parton extracted from the incoming particle after ISR.

tPPair	remakeRemnant (tPPair oldp)
	Fix Remnant connections after ISR.

virtual bool	startTimeLikeShower (ShowerInteraction)
	Start the shower of a timelike particle.

void	updateHistory (tShowerParticlePtr particle)
	Update of the time-like stuff.

virtual bool	startSpaceLikeShower (PPtr, ShowerInteraction)
	Start the shower of a spacelike particle.

virtual bool	startSpaceLikeDecayShower (const ShowerParticle::EvolutionScales &maxScales, Energy minimumMass, ShowerInteraction)
	Start the shower of a spacelike particle.

Branching	selectTimeLikeBranching (tShowerParticlePtr particle, ShowerInteraction type, HardBranchingPtr branch)
	Select the branching for the next time-like emission.

Branching	selectSpaceLikeDecayBranching (tShowerParticlePtr particle, const ShowerParticle::EvolutionScales &maxScales, Energy minmass, ShowerInteraction type, HardBranchingPtr branch)
	Select the branching for the next space-like emission in a decay.

ShowerParticleVector	createTimeLikeChildren (tShowerParticlePtr particle, IdList ids)
	Create the timelike child of a branching.

virtual bool	timeLikeVetoed (const Branching &, ShowerParticlePtr)
	Vetos for the timelike shower.

virtual bool	spaceLikeVetoed (const Branching &, ShowerParticlePtr)
	Vetos for the spacelike shower.

virtual bool	spaceLikeDecayVetoed (const Branching &, ShowerParticlePtr)
	Vetos for the spacelike shower.

bool	hardOnly () const
	Only generate the hard emission, for testing only.

void	checkFlags ()
	Check the flags.

void	addFSRUsingDecayPOWHEG (HardTreePtr ISRTree)

virtual tPPair	cascade (tSubProPtr sub, XCPtr xcomb)
	The main method which manages the showering of a subprocess.

void	decay (ShowerTreePtr tree, ShowerDecayMap &decay)
	Decay a ShowerTree.

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)

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

Detailed Description

Here is the documentation of the AlpGenHandlerOL class.

See also: The interfaces defined for AlpGenHandlerOL.

Definition at line 35 of file AlpGenHandlerOL.h.

Member Function Documentation

◆ caldel_hvq()

void Herwig::AlpGenHandlerOL::caldel_hvq ( ) const

private

c++ translation of subroutine of same name from alpsho.f.

Label all particles with status between ISTLO and ISTHI (until a particle with status ISTOP is found) as final-state, call calsim_m and then put labels back to normal. This version keeps only all IST=1 particles rejected by caldel as daughters of vetoed heavy-quark mothers: jets complementary to those reconstructed by caldel.

◆ caldel_m()

void Herwig::AlpGenHandlerOL::caldel_m ( ) const

private

Deletes particles from partonsToMatch_ and particlesToCluster_ vectors so that these contain only the partons to match to the jets and the particles used to build jets respectively.

By and large the candidates for deletion are: vector bosons and their decay products, Higgs bosons, photons as well as primary, i.e. present in the lowest multiplicity process, heavy quarks and any related decay products.

◆ calini_m()

void Herwig::AlpGenHandlerOL::calini_m ( ) const

private

c++ translation of subroutine of same name from alpsho.f.

Initialize calorimeter for calsim_m and getjet_m. Note that because initialization is separte calsim_m can be called more than once to simulate pileup of several events.

◆ calsim_m()

void Herwig::AlpGenHandlerOL::calsim_m ( ) const

private

c++ translation of subroutine of same name from alpsho.f.

Simple calorimeter simulation - assume uniform Y and phi bins.

◆ clone()

virtual IBPtr Herwig::AlpGenHandlerOL::clone ( ) const

protectedvirtual

Make a simple clone of this object.

Returns: a pointer to the new object.

Reimplemented from Herwig::QTildeShowerHandler.

◆ dofinish()

virtual void Herwig::AlpGenHandlerOL::dofinish ( )

protectedvirtual

Finalize the object.

Reimplemented from Herwig::ShowerHandler.

◆ doinit()

virtual void Herwig::AlpGenHandlerOL::doinit ( )

protectedvirtual

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

Exceptions

InitException if object could not be initialized properly.

Reimplemented from Herwig::QTildeShowerHandler.

◆ doinitrun()

virtual void Herwig::AlpGenHandlerOL::doinitrun ( )

protectedvirtual

Initialize this object.

Called in the run phase just before a run begins.

Reimplemented from Herwig::QTildeShowerHandler.

◆ doSanityChecks()

void Herwig::AlpGenHandlerOL::doSanityChecks ( int debugLevel ) const

private

Allows printing of debug output and sanity checks like total momentum consrvation to be carried out.

debugLevel = -1, 0, ...5 = no debugging, minimal debugging, ... verbose.

◆ fullclone()

virtual IBPtr Herwig::AlpGenHandlerOL::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::QTildeShowerHandler.

◆ getjet_m()

void Herwig::AlpGenHandlerOL::getjet_m	(	double	rjet,
		Energy	ejcut,
		double	etajcut
	)		const

private

c++ translation of subroutine of same name from alpsho.f.

Simple jet-finding algorithm (similar to UA1). Find highest remaining cell > ETSTOP and sum surrounding cells with – DELTA(Y)**2+DELTA(PHI)**2 < RJET**2 , ET>ECCUT. Keep sets with ET>EJCUT and ABS(ETA)<ETACUT. The UA1 parameters are RJET=1.0 and EJCUT=5.0.

◆ Init()

static void Herwig::AlpGenHandlerOL::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=()

AlpGenHandlerOL & Herwig::AlpGenHandlerOL::operator= ( const AlpGenHandlerOL & )

privatedelete

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

◆ persistentInput()

void Herwig::AlpGenHandlerOL::persistentInput	(	PersistentIStream &	is,
		int	version
	)

Function used to read in object persistently.

Parameters

is	the persistent input stream read from.
version	the version number of the object when written.

◆ persistentOutput()

void Herwig::AlpGenHandlerOL::persistentOutput ( PersistentOStream & os ) const

Function used to write out object persistently.

Parameters

os	the persistent output stream written to.

◆ showerHardProcessVeto()

virtual bool Herwig::AlpGenHandlerOL::showerHardProcessVeto ( ) const

virtual

Hook to allow vetoing of event after showering hard sub-process as in e.g.

MLM merging.

Reimplemented from Herwig::QTildeShowerHandler.

Member Data Documentation

◆ alphaS_

ShowerAlphaPtr Herwig::AlpGenHandlerOL::alphaS_

mutableprivate

Pointer to the object calculating the strong coupling.

Definition at line 327 of file AlpGenHandlerOL.h.

◆ alphaSME_

double Herwig::AlpGenHandlerOL::alphaSME_

mutableprivate

Constant alphaS used to generate LH events - if not already using CKKW scale (ickkw = 1 in AlpGen for example).

Definition at line 347 of file AlpGenHandlerOL.h.

◆ cphcal_

vector<double> Herwig::AlpGenHandlerOL::cphcal_

mutableprivate

Definition at line 494 of file AlpGenHandlerOL.h.

◆ cthcal_

vector<double> Herwig::AlpGenHandlerOL::cthcal_

mutableprivate

Definition at line 508 of file AlpGenHandlerOL.h.

◆ delphi_

double Herwig::AlpGenHandlerOL::delphi_

private

Definition at line 546 of file AlpGenHandlerOL.h.

◆ dely_

double Herwig::AlpGenHandlerOL::dely_

mutableprivate

Definition at line 546 of file AlpGenHandlerOL.h.

◆ drjmin_

double Herwig::AlpGenHandlerOL::drjmin_

mutableprivate

Definition at line 432 of file AlpGenHandlerOL.h.

◆ epsetclus_

Energy Herwig::AlpGenHandlerOL::epsetclus_

mutableprivate

Definition at line 388 of file AlpGenHandlerOL.h.

◆ et_

vector<vector<Energy> > Herwig::AlpGenHandlerOL::et_

mutableprivate

Definition at line 522 of file AlpGenHandlerOL.h.

◆ etaclmax_

double Herwig::AlpGenHandlerOL::etaclmax_

private

Definition at line 407 of file AlpGenHandlerOL.h.

◆ etclus_

Energy Herwig::AlpGenHandlerOL::etclus_

mutableprivate

Definition at line 378 of file AlpGenHandlerOL.h.

◆ etclusfixed_

bool Herwig::AlpGenHandlerOL::etclusfixed_

mutableprivate

Definition at line 456 of file AlpGenHandlerOL.h.

◆ etclusmean_

Energy Herwig::AlpGenHandlerOL::etclusmean_

mutableprivate

Definition at line 383 of file AlpGenHandlerOL.h.

◆ etjet_

vector<Energy> Herwig::AlpGenHandlerOL::etjet_

mutableprivate

Definition at line 545 of file AlpGenHandlerOL.h.

◆ highestMultiplicity_

bool Herwig::AlpGenHandlerOL::highestMultiplicity_

mutableprivate

Definition at line 438 of file AlpGenHandlerOL.h.

◆ highestNjets_

int Herwig::AlpGenHandlerOL::highestNjets_

mutableprivate

Definition at line 445 of file AlpGenHandlerOL.h.

◆ highestNLOMultiplicity_

bool Herwig::AlpGenHandlerOL::highestNLOMultiplicity_

mutableprivate

Definition at line 451 of file AlpGenHandlerOL.h.

◆ ihrd_

int Herwig::AlpGenHandlerOL::ihrd_

mutableprivate

Definition at line 422 of file AlpGenHandlerOL.h.

◆ ihvy_

int Herwig::AlpGenHandlerOL::ihvy_

mutableprivate

Definition at line 363 of file AlpGenHandlerOL.h.

◆ initAlpGenHandlerOL

ClassDescription<AlpGenHandlerOL> Herwig::AlpGenHandlerOL::initAlpGenHandlerOL

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 242 of file AlpGenHandlerOL.h.

◆ inputIsNLO_

bool Herwig::AlpGenHandlerOL::inputIsNLO_

mutableprivate

Definition at line 487 of file AlpGenHandlerOL.h.

◆ jetAlgorithm_

int Herwig::AlpGenHandlerOL::jetAlgorithm_

mutableprivate

Definition at line 471 of file AlpGenHandlerOL.h.

◆ jetIdx_

vector<vector<int> > Herwig::AlpGenHandlerOL::jetIdx_

mutableprivate

Definition at line 528 of file AlpGenHandlerOL.h.

◆ ncphi_

unsigned int Herwig::AlpGenHandlerOL::ncphi_

mutableprivate

Definition at line 358 of file AlpGenHandlerOL.h.

◆ ncy_

unsigned int Herwig::AlpGenHandlerOL::ncy_

mutableprivate

Definition at line 353 of file AlpGenHandlerOL.h.

◆ nh_

int Herwig::AlpGenHandlerOL::nh_

mutableprivate

Definition at line 373 of file AlpGenHandlerOL.h.

◆ njets_

int Herwig::AlpGenHandlerOL::njets_

mutableprivate

Definition at line 427 of file AlpGenHandlerOL.h.

◆ nph_

int Herwig::AlpGenHandlerOL::nph_

mutableprivate

Definition at line 368 of file AlpGenHandlerOL.h.

◆ particlesToCluster_

tPVector Herwig::AlpGenHandlerOL::particlesToCluster_

mutableprivate

ONLY the final-state particles from showeredFSPs_ (and maybe also showeredRems_) that are supposed to go for jet clustering.

Definition at line 316 of file AlpGenHandlerOL.h.

◆ partonsToMatch_

ParticleVector Herwig::AlpGenHandlerOL::partonsToMatch_

mutableprivate

ONLY the final-state partons from preshowerFSPs_ that are supposed to enter the jet-parton matching.

Definition at line 303 of file AlpGenHandlerOL.h.

◆ pdfScale_

Energy Herwig::AlpGenHandlerOL::pdfScale_

mutableprivate

Information extracted from the XComb object.

The fixed factorization scale used in the MEs.

Definition at line 336 of file AlpGenHandlerOL.h.

◆ pjet_

vector<Lorentz5Momentum> Herwig::AlpGenHandlerOL::pjet_

mutableprivate

Definition at line 533 of file AlpGenHandlerOL.h.

◆ preshowerFSPs_

ParticleVector Herwig::AlpGenHandlerOL::preshowerFSPs_

mutableprivate

Final-state outgoing partICLEs prior to showering (i.e.

from lastXCombPtr).

Definition at line 262 of file AlpGenHandlerOL.h.

◆ preshowerFSPsToDelete_

ParticleVector Herwig::AlpGenHandlerOL::preshowerFSPsToDelete_

mutableprivate

Final-state outgoing partICLEs prior to showering to_be_removed from preShowerFSPs_ prior to the light-parton-light-jet matching step.

This same list is the starting point for determining partonsToMatch_ for the case of merging in heavy quark production.

Definition at line 270 of file AlpGenHandlerOL.h.

◆ preshowerISPs_

PPair Herwig::AlpGenHandlerOL::preshowerISPs_

mutableprivate

Initial-state incoming partons prior to showering (i.e.

from lastXCombPtr).

Definition at line 256 of file AlpGenHandlerOL.h.

◆ rclus_

double Herwig::AlpGenHandlerOL::rclus_

mutableprivate

Definition at line 402 of file AlpGenHandlerOL.h.

◆ rclusfactor_

double Herwig::AlpGenHandlerOL::rclusfactor_

private

Definition at line 414 of file AlpGenHandlerOL.h.

◆ sHat_

Energy2 Herwig::AlpGenHandlerOL::sHat_

mutableprivate

Centre of mass energy.

Definition at line 341 of file AlpGenHandlerOL.h.

◆ showeredFSPs_

tPVector Herwig::AlpGenHandlerOL::showeredFSPs_

mutableprivate

Final-state outgoing partICLEs after shower of hard process (eventHandler()->currentEvent()->getFinalState()).

Definition at line 288 of file AlpGenHandlerOL.h.

◆ showeredFSPsToDelete_

ParticleVector Herwig::AlpGenHandlerOL::showeredFSPsToDelete_

mutableprivate

Final-state outgoing partICLEs after shower of hard process to_be_removed from showeredFSPs_ prior to the light-parton-light-jet matching step.

This same list is the starting point for determining particlesToCluster_ for the case of merging in heavy quark production.

Definition at line 297 of file AlpGenHandlerOL.h.

◆ showeredISHs_

PPair Herwig::AlpGenHandlerOL::showeredISHs_

mutableprivate

Initial-state incoming hadrons after shower of hard process (eventHandler()->currentEvent()->incoming()).

Definition at line 276 of file AlpGenHandlerOL.h.

◆ showeredISPs_

PPair Herwig::AlpGenHandlerOL::showeredISPs_

mutableprivate

Initial-state incoming partons after shower of hard process (look for partonic children of showeredISHs_).

Definition at line 282 of file AlpGenHandlerOL.h.

◆ showeredRems_

PPair Herwig::AlpGenHandlerOL::showeredRems_

mutableprivate

Final-state remnants after shower of hard process (look for remnants initially in showeredFSPs_).

Definition at line 322 of file AlpGenHandlerOL.h.

◆ smoothingtype_

unsigned int Herwig::AlpGenHandlerOL::smoothingtype_

mutableprivate

Definition at line 393 of file AlpGenHandlerOL.h.

◆ sphcal_

vector<double> Herwig::AlpGenHandlerOL::sphcal_

mutableprivate

Definition at line 501 of file AlpGenHandlerOL.h.

◆ sthcal_

vector<double> Herwig::AlpGenHandlerOL::sthcal_

mutableprivate

Definition at line 515 of file AlpGenHandlerOL.h.

◆ theLastProgenitor

PPtr Herwig::AlpGenHandlerOL::theLastProgenitor

mutableprivate

Definition at line 310 of file AlpGenHandlerOL.h.

◆ theProgenitor

PPtr Herwig::AlpGenHandlerOL::theProgenitor

mutableprivate

Definition at line 309 of file AlpGenHandlerOL.h.

◆ tmpList_

ParticleVector Herwig::AlpGenHandlerOL::tmpList_

mutableprivate

Definition at line 539 of file AlpGenHandlerOL.h.

◆ vetoIsTurnedOff_

bool Herwig::AlpGenHandlerOL::vetoIsTurnedOff_

mutableprivate

Definition at line 476 of file AlpGenHandlerOL.h.

◆ vetoType_

int Herwig::AlpGenHandlerOL::vetoType_

mutableprivate

Definition at line 482 of file AlpGenHandlerOL.h.

◆ ycmax_

double Herwig::AlpGenHandlerOL::ycmax_

mutableprivate

Definition at line 461 of file AlpGenHandlerOL.h.

◆ ycmin_

double Herwig::AlpGenHandlerOL::ycmin_

mutableprivate

Definition at line 466 of file AlpGenHandlerOL.h.

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

AlpGenHandlerOL.h

Public Member Functions

Clone Methods.

Functions used by the persistent I/O system.

Standard Interfaced functions.

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ caldel_hvq()

◆ caldel_m()

◆ calini_m()

◆ calsim_m()

◆ clone()

◆ dofinish()

◆ doinit()

◆ doinitrun()

◆ doSanityChecks()

◆ fullclone()

◆ getjet_m()

◆ Init()

◆ operator=()

◆ persistentInput()

◆ persistentOutput()

◆ showerHardProcessVeto()

Member Data Documentation

◆ alphaS_

◆ alphaSME_

◆ cphcal_

◆ cthcal_

◆ delphi_

◆ dely_

◆ drjmin_

◆ epsetclus_

◆ et_

◆ etaclmax_

◆ etclus_

◆ etclusfixed_

◆ etclusmean_

◆ etjet_

◆ highestMultiplicity_

◆ highestNjets_

◆ highestNLOMultiplicity_

◆ ihrd_

◆ ihvy_

◆ initAlpGenHandlerOL

◆ inputIsNLO_

◆ jetAlgorithm_

◆ jetIdx_

◆ ncphi_

◆ ncy_

◆ nh_

◆ njets_

◆ nph_

◆ particlesToCluster_

◆ partonsToMatch_

◆ pdfScale_

◆ pjet_

◆ preshowerFSPs_

◆ preshowerFSPsToDelete_

◆ preshowerISPs_

◆ rclus_

◆ rclusfactor_

◆ sHat_

◆ showeredFSPs_

◆ showeredFSPsToDelete_

◆ showeredISHs_

◆ showeredISPs_

◆ showeredRems_

◆ smoothingtype_

◆ sphcal_

◆ sthcal_

◆ theLastProgenitor

◆ theProgenitor

◆ tmpList_

◆ vetoIsTurnedOff_

◆ vetoType_

◆ ycmax_

◆ ycmin_