ThePEG::Constants Namespace Reference

The Constants namespace containing some useful physical constants with suitable units. More...

Variables
const Length	MaxLength = 1.0e20 * meter
	A really large length. More...
const Energy	MaxEnergy = 1.0e6 * GeV
	A really large energy. More...
const Energy2	MaxEnergy2 = MaxEnergy * MaxEnergy
	A really large squared energy. More...
const double	MaxDouble = DBL_MAX
	The largest possible double. More...
const double	HugeDouble = DBL_MAX * 1.0e-4
	A really large double. More...
const double	MaxFloat = FLT_MAX
	The largest possible float. More...
const double	HugeFloat = FLT_MAX * 0.01
	A really large floa.t.
const double	MaxRapidity = 100.0
	A really large rapidity.
const double	pi = M_PI
	Good old . More...
const double	twopi = 2.0 * pi
	Good old . More...
const long	MaxInt = 1000000000L
	A really large integer.
const double	epsilon = DBL_EPSILON
	The smallest non-zero double. More...
const double	EulerGamma = 0.5772156649015329
	The Euler gamma.

Detailed Description

The Constants namespace containing some useful physical constants with suitable units.

Variable Documentation

const double ThePEG::Constants::epsilon = DBL_EPSILON

The smallest non-zero double.

Definition at line 63 of file Constants.h.

Referenced by ThePEG::Cuts::sHat().

const double ThePEG::Constants::HugeDouble = DBL_MAX * 1.0e-4

A really large double.

Definition at line 42 of file Constants.h.

const double ThePEG::Constants::MaxDouble = DBL_MAX

The largest possible double.

Definition at line 39 of file Constants.h.

const Energy ThePEG::Constants::MaxEnergy = 1.0e6 * GeV

A really large energy.

Definition at line 33 of file Constants.h.

Referenced by ThePEG::ParticleData::width(), ThePEG::ParticleData::widthLoCut(), and ThePEG::ParticleData::widthUpCut().

const Energy2 ThePEG::Constants::MaxEnergy2 = MaxEnergy * MaxEnergy

A really large squared energy.

Definition at line 36 of file Constants.h.

const double ThePEG::Constants::MaxFloat = FLT_MAX

The largest possible float.

Definition at line 45 of file Constants.h.

Referenced by ThePEG::Particle::eta(), and ThePEG::Particle::rapidity().

const Length ThePEG::Constants::MaxLength = 1.0e20 * meter

A really large length.

Definition at line 30 of file Constants.h.

Referenced by ThePEG::ParticleData::cTau().

const double ThePEG::Constants::pi = M_PI

Good old .

Definition at line 54 of file Constants.h.

Referenced by ThePEG::ThreeVector< Value >::deltaPhi(), ThePEG::dirTheta(), ThePEG::Helicity::VertexBase::electroMagneticCoupling(), ThePEG::RandomGenerator::rndBW(), ThePEG::RandomGenerator::rndGauss(), ThePEG::RandomGenerator::rndRelBW(), ThePEG::Helicity::VertexBase::strongCoupling(), and ThePEG::Helicity::VertexBase::weakCoupling().

const double ThePEG::Constants::twopi = 2.0 * pi

Good old .

Definition at line 57 of file Constants.h.

Referenced by ThePEG::ThreeVector< Value >::deltaPhi().