VinciaEW Class Reference

Top-level class for the electroweak shower module. More...

#include <VinciaEW.h>

Inheritance diagram for VinciaEW:

Public Member Functions
	VinciaEW ()
	Constructor.
void	initPtr (Info *infoPtrIn, VinciaCommon *vinComPtrIn) override
	Initialize pointers (called at construction time).
void	init (BeamParticle *beamAPtrIn=0, BeamParticle *beamBPtrIn=0) override
	Initialise settings for current run (called as part of Pythia::init()). More...
bool	polarise (vector< Particle > &state) override
	Select helicities for a resonance-decay system.
bool	prepare (int iSysIn, Event &event, bool isBelowHadIn=false) override
	Prepare to shower a system. More...
void	update (Event &event, int iSysIn) override
	Update EW shower system each time something has changed.
void	setVerbose (int verboseIn) override
	Set verbose level.
void	load () override
	Save information on masses and widths, and load branchings. More...
double	q2Next (Event &, double q2Start, double q2End) override
	Generate a trial scale.
bool	lastIsSplitting () override
	Query last branching.
bool	lastIsInitial () override
bool	lastIsResonanceDecay () override
bool	acceptTrial (Event &event) override
	Check veto.
void	updateEvent (Event &event) override
	Update event after branching accepted.
void	updatePartonSystems (Event &event) override
	Update partonSystems after branching accepted.
void	clear (int) override
	Clear EW system.
unsigned int	nBranchers () override
	Get number of EW branchers.
unsigned int	nResDec () override
void	printData ()
	Print loaded data on masses and widths.
void	printBranchings ()
	Print branchings. More...
double	q2min () override
	Override additional base class methods.
double	q2minColoured () override
	End scales.
double	eventWeight ()
void	q2min (double q2minSavIn)
	Setter for q2minSav.
int	sysWin () override
	We only have one system.
bool	isResonance (int pid)
	Check if a particle is a resonance according to EW shower database.
Public Member Functions inherited from VinciaModule
	VinciaModule ()
	Default constructor.
virtual	~VinciaModule ()=default
	Default destructor.
bool	isInit ()

Public Attributes
unordered_map< pair< int, int >, vector< pair< int, int > > >	cluMapFinal
	Public members. More...
unordered_map< pair< int, int >, vector< pair< int, int > > >	cluMapInitial
unordered_map< pair< int, int >, vector< EWBranching > >	brMapFinal
unordered_map< pair< int, int >, vector< EWBranching > >	brMapInitial
unordered_map< pair< int, int >, vector< EWBranching > >	brMapResonance
EWParticleData	ewData
	Locally store data about EW particles.
AmpCalculator	ampCalc
	Amplitude calculator.
Public Attributes inherited from VinciaModule
BeamParticle *	beamAPtr {}
	Members.
BeamParticle *	beamBPtr {}
Info *	infoPtr {}
ParticleData *	particleDataPtr {}
Logger *	loggerPtr {}
PartonSystems *	partonSystemsPtr {}
Rndm *	rndmPtr {}
Settings *	settingsPtr {}
VinciaCommon *	vinComPtr {}

Additional Inherited Members
Protected Attributes inherited from VinciaModule
int	verbose
bool	isInitPtr
bool	isInitSav

Detailed Description

Top-level class for the electroweak shower module.

Member Function Documentation

void init ( BeamParticle *  beamAPtrIn = 0, BeamParticle *  beamBPtrIn = 0  )

overridevirtual

Initialise settings for current run (called as part of Pythia::init()).

Top-level class for the electroweak shower module.

Initialize.

Did we load the data?

Settings.

Initialize alphaEM.

Change Pythia settings, initialize, then change them back.

Set beam pointers.

Initialize AmpCalculator.

Create EW shower system.

Initialize the EW system.

Implements VinciaModule.

void load ( )

overridevirtual

Save information on masses and widths, and load branchings.

Read settings.

Fetch multipliers for overestimate functions.

Check if we are using the bosonic interference factor.

Load possible EW branchings from XML.

In DEBUG mode, print and check for doubles between Final and Res maps.

Find corresponding entry in brMapResonance.

Loop over all branchings and compare.

Reimplemented from VinciaModule.

bool prepare ( int  iSysIn, Event &  event, bool  isBelowHadIn = false  )

overridevirtual

Prepare to shower a system.

Prepare to shower a system. (If isBelowHadIn = true, assume only resonance decays may be left to do.)

Sanity check.

Prepare system

Implements VinciaModule.

void printBranchings

(

)

Print branchings.

Print final-state branchings.

Print resonance branchings.

Print initial-state branchings.

Member Data Documentation

unordered_map<pair<int, int>, vector<EWBranching> > brMapFinal

Map from (PID, polarisation) of I to all possible branchings where I is: final, initial or resonance.

unordered_map<pair<int, int>, vector<pair<int, int> > > cluMapFinal

Public members.

Cluster maps for spectator selection.

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

• include/Pythia8/VinciaEW.h
• src/VinciaEW.cc