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词汇 kaon
释义

Definition of kaon in English:

kaon

noun ˈkeɪɒnˈkeɪɑn
Physics
  • A meson having a mass several times that of a pion.

    〔物理〕K介子

    Example sentencesExamples
    • One linear combination of those states is involved in the production of the neutral kaon particles, and another linear combination is involved in their disintegration.
    • In turn, these decay into other subatomic particles, like kaons and pions.
    • In particular, it would rule out a ‘soft ‘equation of state for the core of the star, which includes Bose-Einstein condensates of kaons, hyperons and pions.’
    • Both laboratories found significant differences associated with time in the activity of neutral particles called kaons.
    • In this scheme, quark-antiquark pairs form kaons, pions, and other mesons, while triplets of quarks form protons, neutrons, and numerous heavier cousins that appeared in accelerator experiments.

Origin

1950s: from ka representing the letter K (as a symbol for the particle) + -on.

Definition of kaon in US English:

kaon

nounˈkāänˈkeɪɑn
Physics
  • A meson having a mass several times that of a pion.

    〔物理〕K介子

    Example sentencesExamples
    • In this scheme, quark-antiquark pairs form kaons, pions, and other mesons, while triplets of quarks form protons, neutrons, and numerous heavier cousins that appeared in accelerator experiments.
    • In turn, these decay into other subatomic particles, like kaons and pions.
    • One linear combination of those states is involved in the production of the neutral kaon particles, and another linear combination is involved in their disintegration.
    • Both laboratories found significant differences associated with time in the activity of neutral particles called kaons.
    • In particular, it would rule out a ‘soft ‘equation of state for the core of the star, which includes Bose-Einstein condensates of kaons, hyperons and pions.’

Origin

1950s: from ka representing the letter K (as a symbol for the particle) + -on.

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