The Precision Measurement of R Values between 2 and 5 GeV at BEPC/BES

• 作 者: Zhao Zhengguo Huang Guangshun
• 机 构: InstituteofHighEnergyPhysics
• 出 处: 中国科学院院刊：英文版
• 发表日期: 2005年3期
• 关键词: 粒子物理学 标准模型 精确测量 Higgs介子

The Standard Model (SM) is the basic theory of particle physics. Almost all of its predictions agree with the experimental results within measurement precision.However, the Higgs particle predicted by the SM, which is closely connected with the origin of