kaon

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kaon

[′kā‚än]
(particle physics)
References in periodicals archive ?
(3) This marks the discovery of violation of CP symmetry in neutral K-meson decay processes.
It was about 3.5 times as massive as a pion but still only half as massive as a proton or neutron and was called a K-meson, which was sometimes abbreviated to kaon.
Three particle types - K-mesons and two types of B-mesons had been caught in the act before.