tau particle


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.
Related to tau particle: lepton

tau particle

[′tau̇ ‚pärd·ə·kəl]
(particle physics)
A heavy, charged lepton with a mass of approximately 1777 megaelectronvolts, observed as a resonance in electron-positron collisions. Also known as tauon.
References in periodicals archive ?
With it, we can understand the recent OPERA measurement of a tau particle in a muon neutrino beam as well as the early measurements of muon particles in electron neutrino beams.
The theorists proposed that experimenters look for a process in which a Higgs decays into two tau particles, which are like supersized cousins of electrons, while the remainder of the energy from the original proton-proton collision sprays outward in two jets.
Muon and tau (or tauon) neutrinos are produced in reactions involving the electron's two heavier cousins, the muon and tau particles, respectively.