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Physicists Discover a ‘Quarky’ Quintet

LHC experiment reveals exotic, short-lived particles with five quarks.

RELATED TAGS: PHYSICS
LHCb
The world at scales smaller than a proton is strange — one might even say “quarky.” Quarks are fundamental particles that come in six flavors — yes, that’s the official term — which also have antimatter equivalents. They’re never found alone, but nearly always in pairs (called mesons) or trios (called baryons), which include protons and neutrons. Four-quark particles, tetraquarks, have been observed only in particle collider experiments.
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