Heaviest known fundamental particle (~173 GeV, mass of a gold atom); discovered at Fermilab 1995. Decays before hadronizing. Spin-½, colour-charged fermion; confined inside hadrons by QCD.
Heaviest known fundamental particle (~173 GeV, mass of a gold atom); discovered at Fermilab 1995. Decays before hadronizing. Spin-½, colour-charged fermion; confined inside hadrons by QCD.