Container for all shower weights, including handling. More...

#include <DireWeightContainer.h>

Public Member Functions
	DireWeightContainer ()
	Constructor.

	DireWeightContainer (Settings *settingsPtrIn)

void	init ()
	Initialize weights.

void	setup ()
	Container for all shower weights, including handling. More...

void	initPtrs (BeamParticle beamAIn, BeamParticle beamBIn, Settings settingsPtrIn, Info infoPtrIn, DireInfo *direInfoPtrIn)

void	reset ()
	Reset current accept/reject probabilities.

void	clear ()

void	bookWeightVar (string varKey, bool checkSettings=true)
	Function to initialize new maps for a new shower variation.

ulong	key (double a)

double	dkey (ulong a)

void	setWeight (string varKey, double value)

void	resetAcceptWeight (double pT2key, double value, string varKey)

void	resetRejectWeight (double pT2key, double value, string varKey)

void	eraseAcceptWeight (double pT2key, string varKey)

void	eraseRejectWeight (double pT2key, string varKey)

double	getAcceptWeight (double pT2key, string varKey)

double	getRejectWeight (double pT2key, string varKey)

void	insertWeights (map< double, double > aWeight, multimap< double, double > rWeight, string varKey)
	Attach accept/reject probabilities for a proposed shower step. More...

void	calcWeight (double pT2, bool includeAcceptAtPT2=true, bool includeRejectAtPT2=false)
	Function to calculate the weight of the shower evolution step. More...

pair< double, double >	getWeight (double pT2, string valKey="base")
	Function to calculate the weight of the shower evolution step. More...

double	getShowerWeight (string valKey="base")
	Function to return weight of the shower evolution. More...

unordered_map< string, double > *	getShowerWeights ()

double	sizeWeights () const

string	weightName (int i) const

double	sizeWeightgroups () const

string	weightgroupName (int i) const

double	enhanceOverestimate (string name)
	Returns additional user-supplied enhancements factors.

double	getTrialEnhancement (double pT2key)

void	clearTrialEnhancements ()

void	addTrialEnhancement (double pT2key, double value)

bool	hasME (vector< int > in_pdgs=vector< int >(), vector< int > out_pdgs=vector< int >())

bool	hasME (const Event &event)

double	getME (const Event &event)

Public Attributes
string	card
	MG5 matrix element access.

ExternalMEsPtr	matrixElements {}

bool	hasMEs

Detailed Description

Container for all shower weights, including handling.

Member Function Documentation

void calcWeight	(	double	pT2,
		bool	includeAcceptAtPT2 = `true`,
		bool	includeRejectAtPT2 = `false`
	)

Function to calculate the weight of the shower evolution step.

Loop though weights.

Set accept weight.

Now multiply rejection weights.

Remember weights

double getShowerWeight ( string valKey = "base" )

inline

Function to return weight of the shower evolution.

First try to return an individual shower weight indexed by "valKey".

If not possible, return a product of shower weights indexed by "valKey".

Loop through group of weights and combine all weights into one weight.

Done.

pair< double, double > getWeight	(	double	pT2,
		string	valKey = `"base"`
	)

Function to calculate the weight of the shower evolution step.

Set accept weight.

Now multiply rejection weights.

Remember weights

Diagnostic messages.

Done.

void insertWeights	(	map< double, double >	aWeight,
		multimap< double, double >	rWeight,
		string	varKey
	)

Attach accept/reject probabilities for a proposed shower step.

New accept weights.

New reject weights.

ulong key ( double a )

inline

To avoid rounding problems, maps will be indexed with long keys. Round double inputs to four decimals, as long will should be >10 digits.

void setup ( )

Container for all shower weights, including handling.

Clear everything.

Initialize MG5 MEs interface.

Initialize additional user-defined enhancements of splitting kernel overestimates.

QCD FSR

QCD ISR

QED FSR

QED ISR

EW FSR

New U(1) FSR

New U(1) ISR

Down-variations of renormalization scale.

Up-variations of renormalization scale.

PDF variations.

ME variations.

Remember groups of weights that should be combined into one weight. vector<string> group; group = createvector<string>("Variations:muRfsrUp") ("Variations:muRisrUp"); weightCombineList.insert ( make_pair("scaleUp", group) ); weightCombineListNames.push_back ("scaleUp"); group = createvector<string>("Variations:muRfsrDown") ("Variations:muRisrDown"); weightCombineList.insert ( make_pair("scaleDown", group) ); weightCombineListNames.push_back ("scaleDown");

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

include/Pythia8/DireWeightContainer.h
src/DireWeightContainer.cc

Public Member Functions

Public Attributes

Detailed Description

Member Function Documentation