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/ˈkeɪˌɑn/ · noun
(particle physics) any of four unstable subatomic particles, mesons, they are a combination of a strange quark or antiquark and either an up or down quark or antiquark.
K⁰: strange quark + down antiquark
K (antiparticle of K⁰): down quark + strange antiquark
K⁺: strange quark + up antiquark
K⁻ (antiparticle of K⁺): up quark + strange antiquark
Use kaon when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Kaon means (particle physics) any of four unstable subatomic particles, mesons, they are a combination of a strange quark or antiquark and either an up or down quark or antiquark.
Common synonyms include k particle, kappa-meson, k-meson.
The opposite depends on the specific sense.
K⁰: strange quark + down antiquark
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