物质与相互作用：粒子物理学视角
Matter and Interactions: a particle physics perspective
摘要：
在经典力学中，物质和场是完全分离的。物质与场相互作用。对于粒子物理学家来说，情况并非如此。物质和场都是由粒子来表示的。基本相互作用由物质粒子之间交换的粒子介导。在本文中，我们解释了为什么粒子物理学家相信这样一个图片，介绍费曼图的技术从非常基本和流行的类比与经典力学，使物理学的基本粒子理解，甚至高中生，唯一的先决条件是知识的机械能守恒。
英文摘要：
In classical mechanics matter and fields are completely separated. Matter interacts with fields. For particle physicists this is not the case. Both matter and fields are represented by particles. Fundamental interactions are mediated by particles exchanged between matter particles. In this paper we explain why particle physicists believe in such a picture, introducing the technique of Feynman diagrams starting from very basic and popular analogies with classical mechanics, making the physics of elementary particles comprehensible even to high school students, the only prerequisite being the knowledge of the conservation of mechanical energy.
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