A Complete Collection of 100000 Whys
Fav十万个为什么
什么是中微子？
中微子是一种电中性的、几乎不与物质发生相互作用的、具有极小质量的基本粒子，具体原因如下：
1、电中性：中微子不带电荷，这使得它们几乎不受电磁力的影响，能够几乎不受阻碍地穿过物质。
2、弱相互作用：中微子仅通过弱核力与物质发生相互作用，这种相互作用的概率非常低，因此中微子能够穿透地球甚至更远的距离而不被探测到。
3、极小质量：中微子的质量非常小，直到最近几十年才通过精密实验确定了它们具有非零质量。由于质量极小，中微子在宇宙中运动速度接近光速。
总结：中微子是一种电中性的、几乎不与物质发生相互作用的、具有极小质量的基本粒子。
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