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Any of the baryons that are not nucleons, have a mass greater than that of the neutron, and are not stable.


(General Physics) physics any baryon that is not a nucleon
[C20: from hyper- + -on]


(ˈhaɪ pəˌrɒn)

any baryon with nonzero strangeness, esp. one with a relatively long lifetime.
[1950–55; < Greek hypér + -on1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hyperon - any baryon that is not a nucleon; unstable particle with mass greater than a neutron
baryon, heavy particle - any of the elementary particles having a mass equal to or greater than that of a proton and that participate in strong interactions; a hadron with a baryon number of +1
lambda hyperon, lambda particle - an electrically neutral baryon with isotopic spin 1
References in periodicals archive ?
In this approach, the authors used a valence quark model in combination with SU(6) symmetry relations and data on hyperon decays to produce a range of predictions for effective PV meson-nucleon couplings consistent with the SM.
decay into a combination of a lambda hyperon, an antiproton and pions.
Such hyper-nuclei, called hyperons, can be created in laboratories but survive only for a short time.