View source for PDG particle numbering scheme

[[Category:Basic concept]]
[[Category:Format]]
The '''PDG particle numbering scheme''' by the [https://en.wikipedia.org/wiki/Particle_Data_Group Particle Data Group] (PDG) assigns a unique code to each type of particle. These codes are commonly called '''PDGID''' (or '''PDG ID'''). They are used widely across particle physics, e.g. in all modern [[Event generator|MC event generators]]. The numbering includes all known [[elementary]] particles (electrons, W bosons, …), composite particles ([[Meson|mesons]], [[Baryon|baryons]], …) and atomic nuclei. It also provides codes for hypothetical particles [[beyond the Standard Model]]. The numbering of [[Hadron|hadrons]] follows a logical scheme based on their quark content and quantum numbers, so that arbitrary hadrons can be numbered. Particles are assigned a positive PDGID, antiparticles a negative one. The PDG convention for mesons is used, so that K<sup>+</sup> and B<sup>+</sup> are defined to be particles (not antiparticles).

== Table of some common PDGIDs ==

The corresponding antiparticles have the same number with a minus sign.

{| class="wikitable"
!colspan="2"|Quarks
|-
!Symbol||PDGID
|-
|d||1
|-
|u||2
|-
|s||3
|-
|c||4
|-
|b||5
|-
|t||6
|-
|b'||7
|-
|t'||8
|-
|}

{| class="wikitable"
!colspan="2"|Leptons
|-
!Symbol||PDGID
|-
|e<sup>–</sup>||11
|-
|ν<sub>e</sub>||12
|-
|μ<sup>–</sup>||13
|-
|ν<sub>μ</sub>||14
|-
|τ<sup>–</sup>||15
|-
|ν<sub>τ</sub>||16
|-
|τ'<sup>–</sup>||17
|-
|ν<sub>τ'</sub>||18
|-
|}

{| class="wikitable"
!colspan="2"|Gauge and Higgs bosons
|-
!Symbol||PDGID
|-
|g||9 and 21
|-
|γ||22
|-
|Z||23
|-
|W<sup>+</sup>||24
|-
|h<sup>0</sup> or H<sup>0</sup><sub>1</sub>||25
|-
|H<sup>+</sup>||37
|-
|}

== See also ==

''PDGID should not be confused with PID'', which generally stands for experimental [[particle identification]].


== Learn more ==

[http://pdg.lbl.gov/2007/reviews/montecarlorpp.pdf PDG numbering scheme documentation] – this document is from 2007, for any changes check the latest [https://en.wikipedia.org/wiki/Particle_Data_Group#Review_of_Particle_Physics PDG review].