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The tau (τ), an aa cried the tau lepton, tau pairticle or tauon, is an elementary pairticle seemilar tae the electron, wi negative electric charge an a spin o ​12. Thegither wi the electron, the muon, an the three neutrinos, it is classified as a lepton. Lik aw elementary particles, the tau haes a correspondin antipairticle o opposite charge but equal mass an spin, which in the tau's case is the antitau (an aa cried the positive tau). Tau pairticles are denotit bi
an the antitau bi