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charm quark

/tʃɑːrm kwɔːrk/

翻译: 粒子物理学中基本粒子的一种,是六种夸克味之一,带有+2/3的正电荷,质量相对较大,存在于J/ψ介子等一些亚原子粒子中。

1 个条目

phrase

/tʃɑːrm kwɔːrk/C1formalscientific
  • zh粒子物理学中基本粒子的一种,是六种夸克味之一,带有+2/3的正电荷,质量相对较大,存在于J/ψ介子等一些亚原子粒子中。

A type of elementary particle in particle physics, one of the six flavors of quarks, with a positive electric charge of +2/3 and a relatively large mass, found in certain subatomic particles like the J/psi meson.

  1. C2formal

    A type of elementary particle in the Standard Model of particle physics, one of the six flavors of quarks, with a charge of +2/3.

    zh粲夸克

    • The charm quark was discovered in 1974 at SLAC and Brookhaven.
    • Protons and neutrons are made of up and down quarks, but charm quarks appear in heavier particles.
    • The J/psi meson is composed of a charm quark and an anti-charm quark.