Image: Wikimedia Commons

lepton

Class of elementary fermions that do not undergo strong interaction

Instance of: type of quantum particle
Subclass of: leptonic matter
, fermion

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

In particle physics, a lepton is an elementary particle of half-integer spin that does not undergo strong interactions. Two main classes of leptons exist: charged leptons, including the electron, muon, and tauon, and neutral leptons, better known as neutrinos. Charged leptons can combine with other particles to form various composite particles such as atoms and positronium, while neutrinos rarely interact with anything, and are consequently rarely observed. The best known of all leptons is the electron.

Overview

All data

59 statements · 17% with external sources · numbers in brackets are citations

Antiparticle: antilepton
Has superpartner: slepton
Interaction: weak interaction
electromagnetic interaction
gravity
Has characteristic: lepton number numeric value: 1
baryon number numeric value: 0
Spin quantum number: 0.5
Has list: Q4434516
Different from: Lepton

On other databases

36 identifiers linking lepton across the web's reference databases

Data quality

statements

17%

externally sourced

Source last edited July 13, 2026. AIDB refreshes this page daily.

Suggest a fact or correction

Links

Use this data

curl https://aidb.si/api/v1/entities/Q82586

API docs, limits & keys

Cite this page

AIDB. (2026). lepton (Q82586). Retrieved from https://aidb.si/e/lepton-Q82586