iguana::particle Namespace Reference

Detailed Description

Light-weight namespace for particle constants.

Enumerations
enum	PDG {   electron = 11 , photon = 22 , proton = 2212 , antiproton = -2212 ,   neutron = 2112 , antineutron = -2112 , pi_plus = 211 , pi_minus = -211 ,   kaon_plus = 321 , kaon_minus = -321 }
	PDG codes. More...

Functions
template<typename VALUE_TYPE>
std::optional< VALUE_TYPE > const	get (std::unordered_map< PDG, VALUE_TYPE > const &property, PDG const &pdg_code)
	get a particle property given a PDG code
template<typename VALUE_TYPE>
std::optional< VALUE_TYPE > const	get (std::unordered_map< PDG, VALUE_TYPE > const &property, int const &pdg_code)
	get a particle property given a PDG code

Variables
const std::unordered_map< PDG, std::string >	name
	Particle names.
const std::unordered_map< PDG, std::string >	title
	Particle titles.
const std::unordered_map< PDG, double >	mass
	Particle mass in GeV.

Enumeration Type Documentation

PDG

enum iguana::particle::PDG

PDG codes.

Definition at line 41 of file TypeDefs.h.

Function Documentation

get() [1/2]

template<typename VALUE_TYPE>

std::optional< VALUE_TYPE > const iguana::particle::get	(	std::unordered_map< PDG, VALUE_TYPE > const &	property,
		int const &	pdg_code )

get a particle property given a PDG code

Example:

auto mass = particle::get(particle::mass, 22); // mass => 0.0

Parameters

property	the particle property, such as particle::name, particle::title, or particle::mass
pdg_code	the particle::PDG value

Returns

the value of the property, if defined for this pdg_code

Definition at line 123 of file TypeDefs.h.

get() [2/2]

template<typename VALUE_TYPE>

std::optional< VALUE_TYPE > const iguana::particle::get	(	std::unordered_map< PDG, VALUE_TYPE > const &	property,
		PDG const &	pdg_code )

get a particle property given a PDG code

Example:

auto mass = particle::get(particle::mass, particle::PDG::photon); // mass => 0.0

Parameters

property	the particle property, such as particle::name, particle::title, or particle::mass
pdg_code	the particle::PDG value

Returns

the value of the property, if defined for this pdg_code

Definition at line 106 of file TypeDefs.h.

Variable Documentation

mass

const std::unordered_map<PDG, double> iguana::particle::mass

Initial value:

{
      { electron, 0.000511 },
      { photon, 0.0 },
      { proton, 0.938272 },
      { antiproton, 0.938272 },
      { neutron, 0.939565 },
      { antineutron, 0.939565 },
      { pi_plus, 0.139570 },
      { pi_minus, 0.139570 },
      { kaon_plus, 0.493677 },
      { kaon_minus, 0.493677 }
    }

Particle mass in GeV.

Definition at line 83 of file TypeDefs.h.

name

const std::unordered_map<PDG, std::string> iguana::particle::name

Initial value:

{
      { electron, "electron" },
      { photon, "photon" },
      { proton, "proton" },
      { antiproton, "antiproton" },
      { neutron, "neutron" },
      { antineutron, "antineutron" },
      { pi_plus, "pi_plus" },
      { pi_minus, "pi_minus" },
      { kaon_plus, "kaon_plus" },
      { kaon_minus, "kaon_minus" }
    }

Particle names.

Definition at line 55 of file TypeDefs.h.

title

const std::unordered_map<PDG, std::string> iguana::particle::title

Initial value:

{
      { electron, "e^{-}" },
      { photon, "#gamma" },
      { proton, "p" },
      { antiproton, "#bar{p}" },
      { neutron, "n" },
      { antineutron, "#bar{n}" },
      { pi_plus, "#pi^{+}" },
      { pi_minus, "#pi^{-}" },
      { kaon_plus, "K^{+}" },
      { kaon_minus, "K^{-}" }
    }

Particle titles.

Definition at line 69 of file TypeDefs.h.