ZGenIFSplitK Class Reference

The initial-final final antenna splitting generator. More...

#include <VinciaTrialGenerators.h>

Inheritance diagram for ZGenIFSplitK:

Public Member Functions
	ZGenIFSplitK ()
	Constructor/destructor.
double	getzMin (double Q2, double sAnt, const vector< double > &masses, double xA=1., double xB=1.) override
	Overridden methods. More...
double	getzMax (double Q2, double sAnt, const vector< double > &masses, double xA=1., double xB=1.) override
void	genInvariants (double Q2In, double zIn, double sAnt, const vector< double > &masses, vector< double > &invariants, Logger *loggerPtr, int verboseIn) override
	Set the invariants for the current value of the evolution variables. More...
double	aTrial (const vector< double > &invariants, const vector< double > &masses) override
	Evaluate the trial antenna given invariants and masses. More...
bool	isActive (enum AntFunType antFunType) override
	Check if this trial is active for specific AntFunType.
Public Member Functions inherited from ZetaGenerator
	ZetaGenerator (TrialGenType trialGenTypeIn, BranchType branchTypeIn, Sector sectorIn, double globalIn)
	Constructor and destructor.
virtual double	getzMinHull (double Q2min, double sAnt, const vector< double > &masses, double xA=1., double xB=1.)
	Get hull of physical phase space in zeta.
virtual double	getzMaxHull (double Q2min, double sAnt, const vector< double > &masses, double xA=1., double xB=1.)
virtual double	getConstFactor (double, const vector< double > &)
TrialGenType	getTrialGenType ()
	Return information about this generator.
Sector	getSector ()
BranchType	getBranchType ()
double	globalMultiplier ()
	Return multiplier to convert to global.
double	getIz (double zMinIn, double zMaxIn, double gammaPDF=1.)
double	genZeta (Rndm *rndmPtr, double zMinIn, double zMaxIn, double gammaPDF=1.)
	Generate a value of zeta. More...
void	print ()
	Print the trial generator. More...

Additional Inherited Members
Protected Member Functions inherited from ZetaGenerator
bool	valid (const string &method, Logger *loggerPtr, int verbose, double zIn)
	Check if invariants are valid.
bool	valid (const string &method, Logger *loggerPtr, int verbose, double zIn, const double &Q2In)
Protected Attributes inherited from ZetaGenerator
const TrialGenType	trialGenType {TrialGenType::Void}
	Labels to define this trial generator (set in derived constructors).
const BranchType	branchType {BranchType::Void}
const Sector	sector {Sector::Void}
const double	globalFactSav
	Multiplier to convert trial to global.

Detailed Description

The initial-final final antenna splitting generator.

Member Function Documentation

double aTrial ( const vector< double > &  invariants, const vector< double > &  masses  )

overridevirtual

Evaluate the trial antenna given invariants and masses.

Assume ma = masses[0], mj = masses[1], ( mk = masses[2] ). Correction factor >= 1 to get rid of unwanted factors.

Implements ZetaGenerator.

void genInvariants ( double  Q2In, double  zIn, double  sAnt, const vector< double > &  masses, vector< double > &  invariants, Logger *  loggerPtr, int  verboseIn  )

overridevirtual

Set the invariants for the current value of the evolution variables.

Note: for final-state gluon splittings we have saj + sak = sAK + sjk + 2mj^2.

Implements ZetaGenerator.

double getzMin ( double  Q2, double  sAnt, const vector< double > &  masses, double  xA = 1., double  xB = 1.  )

overridevirtual

Overridden methods.

ZGenIFSplitK.

Overridden methods.

Implements ZetaGenerator.

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

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