Merging wrapper class for Vincia. More...

#include <VinciaMerging.h>

Inheritance diagram for VinciaMerging:

Public Member Functions
void	init () override
	Overridden methods. More...

void	statistics () override
	Print some stats. More...

int	mergeProcess (Event &process) override
	Merge the event. More...

void	setVerbose (int verboseIn)
	Set the verbosity level.

Public Member Functions inherited from Merging
	Merging ()
	Constructor.

virtual	~Merging ()
	Destructor.

void	initPtrs (MergingHooksPtr mergingHooksPtrIn, PartonLevel *trialPartonLevelPtrIn)
	Initialisation function for internal use inside Pythia source code.

virtual void	getStoppingInfo (double scales[100][100], double masses[100][100])

virtual void	getDeadzones (bool dzone[100][100])

virtual double	generateSingleSudakov (double pTbegAll, double pTendAll, double m2dip, int idA, int type, double s=-1., double x=-1.)
	Function to generate Sudakov factors for MCatNLO-Delta. More...

void	setLHAPtr (LHEF3FromPythia8Ptr lhaUpIn)

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.

Public Attributes inherited from Merging
LHEF3FromPythia8Ptr	lhaPtr

Protected Member Functions inherited from Merging
int	mergeProcessCKKWL (Event &process)
	Function to perform CKKW-L merging on the event. More...

int	mergeProcessUMEPS (Event &process)
	Function to perform UMEPS merging on the event. More...

int	mergeProcessNL3 (Event &process)
	Function to perform NL3 NLO merging on the event. More...

int	mergeProcessUNLOPS (Event &process)
	Function to perform UNLOPS merging on the event. More...

bool	cutOnProcess (Event &process)
	Function to apply the merging scale cut on an input event. More...

void	clearInfos ()
	Clear all information stored in the runtime interface to aMCatNLO.

int	clusterAndStore (Event &process)
	Store all information required for the runtime interface to aMCatNLO. More...

void	getDipoles (int iRad, int colTag, int colSign, const Event &event, vector< pair< int, int > > &dipEnds)

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

virtual void	onInitInfoPtr ()

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 Merging
PartonLevel *	trialPartonLevelPtr
	Pointer to trial PartonLevel object.

MergingHooksPtr	mergingHooksPtr
	Pointer to trial MergingHooks object.

double	tmsNowMin
	Minimal value found for the merging scale in events.

vector< double >	stoppingScalesSave

vector< double >	mDipSave

vector< int >	radSave

vector< int >	emtSave

vector< int >	recSave

vector< bool >	isInDeadzone

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 Merging
static const double	TMSMISMATCH = 1.5
	The Merging class. More...

static const double	MINWGT = 1e-10
	Minimum allowed weight value to prevent division by zero.

Detailed Description

Merging wrapper class for Vincia.

Member Function Documentation

void init ( )

overridevirtual

Overridden methods.

The VinciaMerging class.

Initialize the merging.

Verbosity.

Are we doing merging?

Check consistency.

Flag to check if merging weight should directly be included in the cross section.

Check if we are just estimating the cross section.

Check if we are doing merging in resonance systems.

Check if we need to insert resonances.

What is the maximum multiplicity of the ME-generator?

Initialise counters.

Reimplemented from Merging.

int mergeProcess ( Event & process )

overridevirtual

Merge the event.

If we just want to calculate the cross section, check cut here and exit.

Check whether we have a pointer to Vincia's own MergingHooks object now.

Check whether event is above merging scale.

Sector shower merging.

Could add other types of merging here in future? E.g. merging for regular shower.

Reimplemented from Merging.

void statistics ( )

overridevirtual

Print some stats.

For Logger::REPORT, print computing times.

Reimplemented from Merging.

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

include/Pythia8/VinciaMerging.h
src/VinciaMerging.cc

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation