Pythia7::Shower Namespace Reference

The underlying classes in the Pythia7 parton shower handler do not directly use the ThePEG framework. More...

Classes

class Rndm

The random number generator class used internally in the Pythia7 Shower routines. More...

class Hist

Simple histogram class to be used internally in the Pythia7 Shower classes for testing purposes. More...

class Vec4

Vec4 class. More...

class RotBstMatrix

RotBstMatrix class. More...

class Particle

Particle class. More...

class PDF

Base class for parton distribution functions. More...

class GRV94L

Gives the GRV 94 L (leading order) parton distribution function set in parametrized form. More...

class Lepton

Gives electron (or muon, or tau) parton distribution. More...

class BeamParticle

This class holds info on a beam particle in the shower evolution. More...

class ThePEGPDF

Interface class to make the ThePEG pdf classes available to the internal Pythia7 Shower classes. More...

class Event

This class hold a partonic event, which is to shower (on input) or has showered (on output). More...

class Shower

The Shower class administrates initial- and final-state radiation, by one call to SpaceShower and repeated calls to TimeShower. More...

class SpaceParticle

This class holds info on a spacelike particle in the shower evolution. More...

class SpaceShower

The SpaceShower class does spacelike showers. More...

class TimeParticle

This class holds info on a timelike particle in the shower evolution. More...

class TimeShower

The TimeShower class does timelike showers. More...

Functions

double sqrtpos (double x)

Return the square root.

double sqrtsgn (double x)

Return the square root.

double lambdaK (double a, double b, double c)

The Kallens lambda function.

double lambdaKRoot (double a, double b, double c)

Square root of the Kallens lambda function.

double pAbsLambdaK (double a, double b, double c)

Magnitude of three-momentum.

Vec4 operator+ (const Vec4 &v1, const Vec4 &v2)

NOT DOCUMENTED.

Vec4 operator- (const Vec4 &v1, const Vec4 &v2)

NOT DOCUMENTED.

Vec4 operator* (double f, const Vec4 &v1)

NOT DOCUMENTED.

Vec4 operator* (const Vec4 &v1, double f)

NOT DOCUMENTED.

Vec4 operator/ (const Vec4 &v1, double f)

NOT DOCUMENTED.

double operator* (const Vec4 &v1, const Vec4 &v2)

NOT DOCUMENTED.

double Mass (long)

Function to give particle masses.

long iSpin (long)

Function to give spin of particle.

long iCharge (long)

Function to give charge of particle.

long iColour (long)

Function to give colour of particle.

Detailed Description

The underlying classes in the Pythia7 parton shower handler do not directly use the ThePEG framework.

All these classes are included in the Shower namespace.

Function Documentation

long Pythia7::Shower::iCharge ( long )

Function to give charge of particle.

long Pythia7::Shower::iColour ( long )

Function to give colour of particle.

long Pythia7::Shower::iSpin ( long )

Function to give spin of particle.

double Pythia7::Shower::lambdaK	(	double	a,
		double	b,
		double	c
	)			`[inline]`

The Kallens lambda function.

$\lambda_K(a,b,c)=(a-b-c)^2-4bc$ .

Definition at line 51 of file Basics.h.

References max(), and pow().

Referenced by lambdaKRoot(), and pAbsLambdaK().

double Pythia7::Shower::lambdaKRoot	(	double	a,
		double	b,
		double	c
	)			`[inline]`

Square root of the Kallens lambda function.

$\sqrt{\lambda_K(a,b,c)}=\sqrt{(a-b-c)^2-4bc}$ .

Definition at line 59 of file Basics.h.

References lambdaK(), and sqrt().

double Pythia7::Shower::Mass ( long )

Function to give particle masses.

double Pythia7::Shower::operator*	(	const Vec4 &	v1,
		const Vec4 &	v2
	)			`[inline]`

NOT DOCUMENTED.