lambda hyperon

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Related to lambda hyperon: lambda particle
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Noun1.lambda hyperon - an electrically neutral baryon with isotopic spin 1
hyperon - any baryon that is not a nucleon; unstable particle with mass greater than a neutron
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These particles, which the discoverers have named U.sup.+, U[deg.] and U.sup.-, decay into a combination of a lambda hyperon, an antiproton and pions.
(Mathematicians spend their time playing with triangles and hexagons; physicists spend their time playing with lambda hyperons and sigma hyperons.)