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Eightfold way (physics)
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====Meson octet==== [[Image:meson octet.png|thumb|The [[pseudoscalar meson]] octet]] The eightfold way organizes eight of the lowest [[Spin (physics)|spin]]-0 [[meson]]s into an octet.<ref name=Gell-Mann-1961-TID-12608/><ref name=Gell-Mann-1962/> They are: * {{SubatomicParticle|Kaon0}}, {{SubatomicParticle|Kaon+}}, {{SubatomicParticle|Kaon-}} and {{SubatomicParticle|AntiKaon0}} [[kaon]]s * {{SubatomicParticle|pion+}}, {{SubatomicParticle|pion0}}, and {{SubatomicParticle|pion-}} [[pion]]s * {{SubatomicParticle|eta}}, the [[eta meson]] Diametrically opposite particles in the diagram are [[anti-particle]]s of one another, while particles in the center are their own anti-particle.
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