Fermilab Not Dead Yet, Discovers Rare Single Top Quark
Several sources are reporting that in spite of LHC hype, Fermilab's Tevatron has produced another feat for scientific discovery. Currently the world's most powerful operating particle accelerator, the Tevatron has allowed researchers to observe a rare single Top Quark. "Previously, top quarks had only been observed when produced by the strong nuclear force. That interaction leads to the production of pairs of top quarks. The production of single top quarks, which involves the weak nuclear force and is harder to identify experimentally, has now been observed, almost 14 years to the day of the top quark discovery in 1995."
This quark was not charmed by being photographed.
No existe.
They are saying that the top quark is being produced one at a time, rather than in pairs (IAAP). It's actually subtle -- what had been observed before were 2 top quarks emerging from a gluon. Now they have observed one top quark (and another quark) emerging from a W-boson. Basically. This is not a major discovery, but it is another important showing off of the 'standard model' working very well at the energies we have so far probed.
Oh, and about isolating quarks. You cannot isolate a quark outside a hadron, but you can 'detect' the quark by observing the hadrons and leptons that it decays into, since they leave a distinct signature. The top quark is special because it decays before it even forms a hadron with other quarks.