Produced predominately in pairs after high-energy collisions between protons and antiprotons, this subatomic particle, which possesses a two-thirds charge, is sufficiently heavy that perturbative QCD could be used to give a theoretical estimate of its mass.
Along with its lighter partner, it was predicted by Kobayashi and Maskawa, who deduced its existence from CP-violation in neutral kaons. Produced predominately in pairs after high-energy collisions between protons and antiprotons, this subatomic particle, which possesses a two-thirds charge, is sufficiently heavy that perturbative QCD could be used to give a theoretical estimate of its mass. It is unique among particles of its kind in that it does not hadronize, and therefore decays into a W boson and bottom quark, as seen in its discovery with the Tevatron accelerator in 1995 at Fermilab. With a mass of about 174 GeV, for ten points, name this heaviest and last-discovered quark, the partner of the bottom quark.
Along with its lighter partner, it was predicted by Kobayashi and Maskawa, who deduced its existence from CP-violation in neutral kaons.
top quark