摘要
物质的质量是怎么来的?能从理论上研究质量的起源吗?人类目前所能做的实验是否到了可探索这些质量起源的程度?本文将要介绍目前物理学对这些问题的认识.我们首先通过修改牛顿第零定律引入结合能来介绍物质的各个不同层次上的质量起源的研究链条,然后重点讨论基本粒子质量的起源,并介绍基本粒子质量与对称性的关系,最后讨论三种与质量起源有关的质量产生和分裂的机制.
Where does the mass of matter come from？ Can we trace its origin？ Does our present experimental ability reach the level needed to investigate the origin of mass？ The purpose of this paper is to present our current understanding of these problems from the viewpoint of physics. We first revise Newton＇s Zeroth Law while introducing the binding energy to demonstrate the history and various levels of research on the origin of mass, then focus our attention on the origin of the mass of elementary particles. We will discuss the connection between mass and symmetry, and list three mechanisms of mass generation and splitting that are related to the origin of mass.
出处
《物理》
CAS
北大核心
2009年第10期699-706,共8页
Physics
关键词
质量起源
结合能
电弱对称性
对称性自发破缺
origin of mass, binding energy, electroweak symmetry, spontaneous symmetry breaking
