QEDemitElemental Class Reference

Class for QED emissions. More...

#include <VinciaQED.h>

Public Member Functions
	QEDemitElemental ()
	Constuctor.
void	initPtr (Rndm *rndmPtrIn, PartonSystems *partonSystemsPtrIn)
	Initialize the pointers. More...
void	init (Event &event, int xIn, int yIn, double shhIn, double verboseIn)
	Initialize. More...
void	init (Event &event, int xIn, vector< int > iRecoilIn, double shhIn, double verboseIn)
	Initialize. More...
double	generateTrial (Event &event, double q2Start, double q2Low, double alphaIn, double cIn)
	Generate a trial point. More...

Friends
class	QEDemitSystem
	Friends for internal private members.

Detailed Description

Class for QED emissions.

Member Function Documentation

double generateTrial	(	Event &	event,
		double	q2Start,
		double	q2Low,
		double	alphaIn,
		double	cIn
	)

Generate a trial point.

FF.

Adjust starting scale.

Compute phase space constants.

zMin is identical for all instances.

Generate scale for eikonal piece.

Note: return infinity if zeta=1 or =0 within machine precision to make sure it gets vetoed later.

Generate scale for additional W piece on x.

Generate scale for additional W piece on y.

IF.

Compute exmax and sjkMax.

Adjust starting scale.

Check if there is any phase space available.

Generate scale for eikonal piece.

Generate scale for additional W piece on y. The veto probability for this antenna piece includes an additional factor which is incorporated by a veto locally.

Veto probability.

II.

Adjust starting scale.

Generate scale for eikonal piece.

RF.

Compute phase space constants.

Adjust starting scale.

Generate scale for eikonal piece.

Veto probability.

Generate scale for W in initial state.

Solve for zeta using Newton-Raphson.

Generate scale for W in final state.

Veto probability.

void init	(	Event &	event,
		int	xIn,
		int	yIn,
		double	shhIn,
		double	verboseIn
	)

Initialize.

If an II antenna, make sure x is the positive pz state.

If an IF/RF antenna, make sure x is the initial state.

If a dipole, make sure x is the emitting object.

II.

IF/RF.

QQ is flipped for IF antennae.

Check if initial state is in a beam.

Check if initial particle is A or B.

Otherwise it's a resonance decay.

FF.

void init	(	Event &	event,
		int	xIn,
		vector< int >	iRecoilIn,
		double	shhIn,
		double	verboseIn
	)

Initialize.

Compute total recoiler momentum.

void initPtr	(	Rndm *	rndmPtrIn,
		PartonSystems *	partonSystemsPtrIn
	)

Initialize the pointers.

Class for QED emissions.

Initialize the pointers.

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

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