09-16-2021-2353 - hyperon

 In particle physics, a hyperon is any baryon containing one or more strange quarks, but no charm, bottom, or top quark.^[1] This form of matter may exist in a stable form within the core of some neutron stars.^[2]

Standard Model of particle physics
Elementary particles of the Standard Model
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https://en.wikipedia.org/wiki/Hyperon