Declaration of main UserHooks class to perform Alpgen matching. More...

#include <JetMatching.h>

Inheritance diagram for JetMatchingAlpgen:

Public Member Functions
	JetMatchingAlpgen ()
	Constructor and destructor.

bool	initAfterBeams ()
	Initialisation. More...

Public Member Functions inherited from JetMatching
	JetMatching ()
	Constructor and destructor.

	~JetMatching ()

bool	canVetoProcessLevel ()
	Process level vetos.

bool	doVetoProcessLevel (Event &process)

bool	canVetoPartonLevelEarly ()
	Parton level vetos (before beam remnants and resonance decays)

bool	doVetoPartonLevelEarly (const Event &event)
	Early parton level veto (before beam remnants and resonance showers) More...

int	numberVetoStep ()
	Shower step vetoes (after the first emission, for Shower-kT scheme)

bool	canVetoStep ()

bool	doVetoStep (int, int, int, const Event &)

void	errorMsg (string messageIn)
	Print a message the first few times. Insert in database. More...

Public Member Functions inherited from UserHooks
virtual	~UserHooks ()
	Destructor.

virtual bool	canModifySigma ()
	Possibility to modify cross section of process.

virtual double	multiplySigmaBy (const SigmaProcess sigmaProcessPtr, const PhaseSpace phaseSpacePtr, bool inEvent)
	Multiplicative factor modifying the cross section of a hard process. More...

virtual bool	canBiasSelection ()
	Possibility to bias selection of events, compensated by a weight.

virtual double	biasSelectionBy (const SigmaProcess sigmaProcessPtr, const PhaseSpace phaseSpacePtr, bool inEvent)
	Multiplicative factor in the phase space selection of a hard process. More...

virtual double	biasedSelectionWeight ()
	Event weight to compensate for selection weight above.

virtual bool	canSetLowEnergySigma (int, int) const

virtual double	doSetLowEnergySigma (int, int, double, double, double) const

virtual bool	canVetoResonanceDecays ()
	Possibility to veto resonance decay chain.

virtual bool	doVetoResonanceDecays (Event &)

virtual bool	canVetoPT ()

virtual double	scaleVetoPT ()
	Transverse-momentum scale for veto test.

virtual bool	doVetoPT (int, const Event &)

virtual bool	canVetoMPIStep ()

virtual int	numberVetoMPIStep ()
	Up to how many MPI steps should be checked.

virtual bool	doVetoMPIStep (int, const Event &)

virtual bool	retryPartonLevel ()

virtual bool	canVetoPartonLevel ()
	Possibility to veto event after parton-level selection.

virtual bool	doVetoPartonLevel (const Event &)

virtual bool	canSetResonanceScale ()
	Possibility to set initial scale in TimeShower for resonance decay.

virtual double	scaleResonance (int, const Event &)

virtual bool	canVetoISREmission ()
	Possibility to veto an emission in the ISR machinery.

virtual bool	doVetoISREmission (int, const Event &, int)

virtual bool	canVetoFSREmission ()
	Possibility to veto an emission in the FSR machinery.

virtual bool	doVetoFSREmission (int, const Event &, int, bool=false)

virtual bool	canVetoMPIEmission ()
	Possibility to veto an MPI.

virtual bool	doVetoMPIEmission (int, const Event &)

virtual bool	canReconnectResonanceSystems ()
	Possibility to reconnect colours from resonance decay systems.

virtual bool	doReconnectResonanceSystems (int, Event &)

virtual bool	canChangeFragPar ()
	Can change fragmentation parameters.

virtual void	setStringEnds (const StringEnd , const StringEnd , vector< int >)

virtual bool	doChangeFragPar (StringFlav , StringZ , StringPT , int, double, vector< int >, const StringEnd )

virtual bool	doVetoFragmentation (Particle, const StringEnd *)

virtual bool	doVetoFragmentation (Particle, Particle, const StringEnd , const StringEnd )

virtual bool	canVetoAfterHadronization ()

virtual bool	doVetoAfterHadronization (const Event &)
	Do the actual veto after hadronization.

virtual bool	canSetImpactParameter () const
	Can set the overall impact parameter for the MPI treatment.

virtual double	doSetImpactParameter ()
	Set the overall impact parameter for the MPI treatment.

virtual bool	onEndHadronLevel (HadronLevel &, Event &)
	Custom processing at the end of HadronLevel::next.

Public Member Functions inherited from PhysicsBase
void	initInfoPtr (Info &infoPtrIn)
	This function is called from above for physics objects used in a run. More...

virtual	~PhysicsBase ()
	Empty virtual destructor.

bool	flag (string key) const
	Shorthand to read settings values.

int	mode (string key) const

double	parm (string key) const

string	word (string key) const

vector< bool >	fvec (string key) const

vector< int >	mvec (string key) const

vector< double >	pvec (string key) const

vector< string >	wvec (string key) const

Additional Inherited Members
Public Types inherited from PhysicsBase
enum	Status { INCOMPLETE = -1, COMPLETE = 0, CONSTRUCTOR_FAILED, INIT_FAILED, LHEF_END, LOWENERGY_FAILED, PROCESSLEVEL_FAILED, PROCESSLEVEL_USERVETO, MERGING_FAILED, PARTONLEVEL_FAILED, PARTONLEVEL_USERVETO, HADRONLEVEL_FAILED, CHECK_FAILED, OTHER_UNPHYSICAL, HEAVYION_FAILED, HADRONLEVEL_USERVETO }
	Enumerate the different status codes the event generation can have.

Protected Types inherited from JetMatching
enum	vetoStatus { NONE, LESS_JETS, MORE_JETS, HARD_JET, UNMATCHED_PARTON, INCLUSIVE_VETO }

enum	partonTypes { ID_CHARM =4, ID_BOT =5, ID_TOP =6, ID_LEPMIN =11, ID_LEPMAX =16, ID_GLUON =21, ID_PHOTON =22 }

Protected Member Functions inherited from UserHooks
	UserHooks ()
	Constructor.

virtual void	onInitInfoPtr () override
	After initInfoPtr, initialize workEvent. More...

void	omitResonanceDecays (const Event &process, bool finalOnly=false)
	omitResonanceDecays omits resonance decay chains from process record. More...

void	subEvent (const Event &event, bool isHardest=true)
	subEvent extracts currently resolved partons in the hard process. More...

Protected Member Functions inherited from PhysicsBase
	PhysicsBase ()
	Default constructor.

virtual void	onBeginEvent ()
	This function is called in the very beginning of each Pythia::next call.

virtual void	onEndEvent (Status)

virtual void	onStat ()
	This function is called from the Pythia::stat() call.

void	registerSubObject (PhysicsBase &pb)
	Register a sub object that should have its information in sync with this.

Protected Attributes inherited from JetMatching
bool	doMerge
	Master switch for merging.

bool	doShowerKt

int	nJetMax
	Maximum and current number of jets.

int	nJet

int	jetAlgorithm
	Jet algorithm parameters.

double	eTjetMin

double	coneRadius

double	etaJetMax

double	etaJetMaxAlgo

CellJet *	cellJet
	Internal jet algorithms.

SlowJet *	slowJet

SlowJet *	slowJetHard

HJSlowJet *	hjSlowJet

int	slowJetPower
	SlowJet specific.

Event	eventProcessOrig

Event	eventProcess

Event	workEventJet

vector< int >	typeIdx [3]
	Sort final-state of incoming process into light/heavy jets and 'other'.

set< int >	typeSet [3]

vector< Vec4 >	jetMomenta

int	nEta
	CellJet specific.

int	nPhi

double	eTseed

double	eTthreshold

int	jetAllow
	Merging procedure parameters.

int	jetMatch

int	exclusiveMode

double	coneMatchLight

double	coneRadiusHeavy

double	coneMatchHeavy

bool	exclusive

double	eTpTlightMin
	Store the minimum eT/pT of matched light jets.

map< string, int >	messages
	Map for all error messages.

Protected Attributes inherited from UserHooks
Event	workEvent = {}
	Have one event object around as work area.

double	selBias = 1.
	User-imposed selection bias.

double	enhancedEventWeight = {}
	Bookkept quantities for boosted event weights.

double	pTEnhanced = {}

double	wtEnhanced = {}

Protected Attributes inherited from PhysicsBase
Info *	infoPtr = {}

Settings *	settingsPtr = {}
	Pointer to the settings database.

ParticleData *	particleDataPtr = {}
	Pointer to the particle data table.

Logger *	loggerPtr = {}
	Pointer to logger.

HadronWidths *	hadronWidthsPtr = {}
	Pointer to the hadron widths data table.

Rndm *	rndmPtr = {}
	Pointer to the random number generator.

CoupSM *	coupSMPtr = {}
	Pointers to SM and SUSY couplings.

CoupSUSY *	coupSUSYPtr = {}

BeamSetup *	beamSetupPtr = {}

BeamParticle *	beamAPtr = {}

BeamParticle *	beamBPtr = {}

BeamParticle *	beamPomAPtr = {}

BeamParticle *	beamPomBPtr = {}

BeamParticle *	beamGamAPtr = {}

BeamParticle *	beamGamBPtr = {}

BeamParticle *	beamVMDAPtr = {}

BeamParticle *	beamVMDBPtr = {}

PartonSystems *	partonSystemsPtr = {}
	Pointer to information on subcollision parton locations.

SigmaTotal *	sigmaTotPtr = {}
	Pointers to the total/elastic/diffractive cross sections.

SigmaCombined *	sigmaCmbPtr = {}

set< PhysicsBase * >	subObjects

UserHooksPtr	userHooksPtr

Static Protected Attributes inherited from JetMatching
static const bool	MATCHINGDEBUG = false
	Constants to be changed for debug printout or extra checks. More...

static const bool	MATCHINGCHECK = false

static const int	TIMESTOPRINT = 1
	Number of times the same error message is repeated, unless overridden.

Detailed Description

Declaration of main UserHooks class to perform Alpgen matching.

Member Function Documentation

bool initAfterBeams ( )

inlinevirtual

Initialisation.

Initialisation routine automatically called from Pythia::init(). Setup all parts needed for the merging.

Read in parameters

Use etaJetMax + coneRadius in input to jet algorithms

CellJet specific

SlowJet specific

Matching procedure

If not merging, then done

Exclusive mode; if set to 2, then set based on nJet/nJetMax

No nJet or nJetMax, so default to exclusive mode

Inclusive if nJet == nJetMax, exclusive otherwise

Otherwise, just set as given

Initialise chosen jet algorithm. CellJet.

Extra options for CellJet. nSel = 1 means that all final-state particles are taken and we retain control of what to select. smear/resolution/upperCut are not used and are set to default values.

SlowJet

Check the jetMatch parameter; option 2 only works with SlowJet

Setup local event records

Print information

Implements JetMatching.

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

include/Pythia8Plugins/JetMatching.h

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation