TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

TAU-LEPTON [1 record]

Record 1 2013-09-03

English

Subject field(s)
  • Atomic Physics
CONT

There is now very substantial evidence for the existence of a new elementary particle called the tau ... the properties of the [tau] are analogous to the properties of the electron (e) and muon ... Therefore, the [tau] has been classified as a member of the lepton particle family ... even though it is much heavier than the e or [the muon], having a mass of almost 1,800 MeV [megaelectron volt]/[c-squared].

OBS

The word "tau" must be replaced by the corresponding Greek letter.

French

Domaine(s)
  • Physique atomique
DEF

Lepton lourd de masse voisine de 1850 MeV [mégaélectron volt].

CONT

[...] il semble de plus en plus certain, comme l'ont montré les résultats du SLAC et DESY présentés cet été [en 1977], qu'il existe un lepton lourd, le tau [...] de masse voisine de 1 850 MeV.

OBS

Le mot «tau» doit être remplacé par la lettre grecque correspondante.

Spanish

Campo(s) temático(s)
  • Física atómica
DEF

Partícula elemental masiva que pertenece a la tercera generación de leptones [...] junto al muón que pertenece a la segunda y al electrón de la primera.

CONT

Los miembros confirmados de la tercera familia son los dos leptones, el leptón tau y el neutrino tauónico, y el quark "fondo" o quark b.

Key term(s)
  • τ
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