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单词 pi-meson
释义

Definition of pi-meson in English:

pi-meson

noun pʌɪˈmiːzɒnpʌɪˈmɛzɒn
  • another term for pion
    Example sentencesExamples
    • If, for example, the interaction between two protons in a nucleus is studied, quite good results can be obtained by describing it as an exchange of pi-mesons.
    • In 1947, English physicist Cecil Powell observed Yukawa's mesons, now called pi-mesons or pions, in the upper atmosphere, where they were produced by cosmic ray collisions.
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更新时间:2025/2/20 21:28:35