正电子预言和发现

The Prediction and Discovery of Positron

正电子是电子的反粒子,它的质量、电荷量都和电子的相等,但它带正电荷,是人类最早认识的反物质。正电子的产生和湮没使人们对基本粒子的认识发生了重大的变化。本文着重介绍了正电子的理论预言过程和实验发现过程及深远意义,并说明了正电子的物理性质及其技术应用。

A positron（ = positive electron） is the antiparticle of an electron. It has the same mass and magnitude of charge as the electron, but has a positive rather than negative charge. Positron is the product of the first and versa grain that discovered by the mankind to the appearing and annihilation of the positron, great changes have been made in the understanding of fundamental particles. This paper laid stress on the explaination of the process and significance of the theoretical prediction and experimental discovery of positron. And its physical properties and technology applications are explained.