V2EX weak force

Weak Force

释义 Definition

弱力;弱相互作用(弱核力):自然界四种基本相互作用之一,主要负责某些粒子衰变(如β 衰变),在亚原子尺度上起作用,作用范围极短。

发音 Pronunciation (IPA)

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例句 Examples

The weak force can change one type of particle into another.
弱相互作用可以把一种粒子转变成另一种粒子。

In the Standard Model, the weak force is carried by W and Z bosons and plays a key role in nuclear decay processes.
在标准模型中,弱相互作用由 W 玻色子和 Z 玻色子传递,并在核衰变过程中起关键作用。

词源 Etymology

weak force”由 weak(弱的) + force(力) 构成。这里的 “weak” 不是指“作用不重要”,而是相对于电磁力或强相互作用而言,在某些条件下其耦合强度较小、作用距离极短,因此得名。在物理学中也常称为 weak interaction(弱相互作用)。

相关词 Related Words

文学与名著用例 Literary Works

  • A Brief History of Time(《时间简史》) Stephen Hawking
  • The Grand Design(《大设计》) Stephen Hawking & Leonard Mlodinow
  • The First Three Minutes(《最初三分钟》) Steven Weinberg
  • The Elegant Universe(《优雅的宇宙》) Brian Greene
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