n.介子

The meson is a subatomic particle that plays a crucial role in the strong nuclear force.
中子介子是一种亚原子粒子，它在强力核力中扮演着关键角色。
Pions, or pi mesons, are the lightest mesons and were the first to be discovered.
介子，或称为π介子，是最轻的介子，也是最早被发现的介子。
Mesons are composed of a quark and an antiquark, bound together by the strong interaction.
介子由一个夸克和一个反夸克组成，它们通过强相互作用结合在一起。
The discovery of the J/ψ meson led to the confirmation of the existence of charm quarks.
J/ψ介子的发现证实了魅力夸克的存在。
In particle accelerators, mesons are often produced when high-energy particles collide.
在粒子加速器中，高能粒子碰撞时经常会生成介子。
Kaons, a type of meson, exhibit both particle-antiparticle behavior and are used to study CP violation.
K介子，作为一种介子，显示出粒子与反粒子的行为，被用来研究CP破坏现象。
Mesons do not generally survive long outside of a nucleus due to their instability.
由于介子的不稳定性，它们通常在原子核外不能长时间存在。
The η meson is an example of a pseudoscalar meson, having zero spin.
η介子是一个赝标量介子的例子，其自旋为零。
The study of meson decay helps physicists understand the weak nuclear force.
对介子衰变的研究帮助物理学家理解弱核力。
Muon mesons, once believed to be mesons, are now classified as leptons.
早期被认为是介子的μ介子（即μ子），现在被归类为轻子。