Contains random generator functions used in the Monte Carlo Thermal Event Generator. More...

Classes
struct	BesselDistributionGenerator
	Generator of a random number from the Bessel distribution (a, nu), nu is integer Uses methods from https://www.sciencedirect.com/science/article/pii/S016771520200055X Used in event generator with exact conservation of charges to generate two Poisson numbers with fixed difference, as described in https://arxiv.org/pdf/1609.01087.pdf. More...

class	BoostInvariantHypersurfaceMomentumGenerator
	Class for generating momentum of a particle from a longitudinally boost-invariant (2+1)-D hypersurface. More...

class	BoostInvariantMomentumGenerator
	Class for generating momentum of a particle in accordance with a longitudinally boost invariant and azimuthally symmetric freeze-out model. More...

class	BreitWignerGenerator
	Class for generating mass of resonance in accordance with the relativistic Breit-Wigner distribution. More...

class	HypersurfaceMomentumGenerator
	Class for generating momentum of a particle from a hypersurface. More...

class	ParticleMomentumGenerator
	Base class for Monte Carlo sampling of particle momenta. More...

class	SiemensRasmussenMomentumGenerator
	Class for generating the momentum of a particle in accordance with the Siemens-Rasmussen formula. More...

class	SiemensRasmussenMomentumGeneratorGeneralized
	A generalized class for generating the momentum of a particle in accordance with the Siemens-Rasmussen spherically symmetric blast-wave model which is able to incorporate Fermi-Dirac and Bose-Einstein statistics. More...

class	SSHMomentumGenerator
	Class for generating the momentum of a particle in accordance with the longitudinally symmetric blast-wave model. More...

class	ThermalBreitWignerGenerator
	Class for generating mass of resonance in accordance with the constant width Breit-Wigner distribution multiplied by the thermal density. More...

class	ThermalEnergyBreitWignerGenerator
	Class for generating mass of resonance in accordance with the energy-dependent Breit-Wigner distribution multiplied by the thermal density. More...

class	ThermalMomentumGenerator
	Class for generating the absolute values of the momentum of a particle in its local rest frame. More...

class	VolumeElementSampler
	Sample the volume element on a hypersurface from a multinomial distribution. More...

Functions
void	SetSeed (const unsigned int seed)
	Set the seed of the random number generator randgenMT.

int	RandomPoisson (double mean)
	Generates random integer distributed by Poisson with specified mean Uses randgenMT.

int	RandomPoisson (double mean, MTRand &rangen)
	Same as randgenMT(double) but uses the provided instance of the Mersenne Twister random number generator.

double	SkellamProbability (int k, double mu1, double mu2)
	Probability of a Skellam distributed random variable with Poisson means mu1 and mu2 to have the value of k.

std::mt19937	rng_std (std::time(nullptr))

Variables
MTRand	randgenMT
	The Mersenne Twister random number generator.

std::mt19937	rng_std
	The Mersenne Twister random number generator from STD library.

Detailed Description

Contains random generator functions used in the Monte Carlo Thermal Event Generator.

Function Documentation

◆ RandomPoisson() [1/2]

int thermalfist::RandomGenerators::RandomPoisson ( double mean )

Generates random integer distributed by Poisson with specified mean Uses randgenMT.

Parameters

mean	Mean of the Poisson distribution

Definition at line 27 of file RandomGenerators.cpp.

◆ RandomPoisson() [2/2]

int thermalfist::RandomGenerators::RandomPoisson	(	double	mean,
		MTRand &	rangen )

Same as randgenMT(double) but uses the provided instance of the Mersenne Twister random number generator.

Parameters

mean
rangen	A Mersenne Twister random number generator to use

Definition at line 72 of file RandomGenerators.cpp.

◆ rng_std()

std::mt19937 thermalfist::RandomGenerators::rng_std ( std::time(nullptr) )

◆ SetSeed()

void thermalfist::RandomGenerators::SetSeed ( const unsigned int seed )

Set the seed of the random number generator randgenMT.

Definition at line 23 of file RandomGenerators.cpp.

◆ SkellamProbability()

double thermalfist::RandomGenerators::SkellamProbability	(	int	k,
		double	mu1,
		double	mu2 )

Probability of a Skellam distributed random variable with Poisson means mu1 and mu2 to have the value of k.

Definition at line 116 of file RandomGenerators.cpp.

Variable Documentation

◆ randgenMT

MTRand thermalfist::RandomGenerators::randgenMT

The Mersenne Twister random number generator.

Definition at line 19 of file RandomGenerators.cpp.

◆ rng_std

std::mt19937 thermalfist::RandomGenerators::rng_std

extern

The Mersenne Twister random number generator from STD library.

Classes

Functions

Variables