报告题目:The Fundamental Constants and Their Time Variation
报 告 人:Prof. Harald Fritzsch
邀 请 人:司宗国 教授
报告时间:5月18日(星期三),下午四点
报告地点:知新楼C座7楼报告厅
欢迎全体本科生、研究生、老师参加!!!
报告摘要:
In the Standard Model of Particle Physics there are 28fundamental constants, which can be measured, but theoretically they are not understood. I will discuss these constants, which are mostly mass parameters. Astrophysical measurements indicate that the fine structure constant depends on time. In this case grand unification implies a time variation of the QCD scale. Thus the masses of the atomic nuclei and the magnetic moments of the nuclei will depend on time. In this case presumably all fundamental constants are functions of time and space. I proposed an experiment, which is currently carried out by Prof. Haensch in Munich and his group. The first results indicate a time dependence of the QCD scale.
报告人简介:
Harald Fritzsch,著名理论物理学家。早年就学于东德,1969年移居西德,在慕尼 黑工业大学获得博士学位。曾经工作于斯坦福大学、加州理工学院和欧洲核子中心,1980年成为慕尼黑大学“索末菲”教授,2008年退休。他与诺贝尔奖得主Murray Gell-Mann合作 多年,共同为量子色动力学做出了意义深远的奠基性工作。他在大统一理论、味相互作用理论、中微子物理学等许多领域都具有原始创新的重要贡献。他的科普畅销书被译成多种文字,影响十分广泛,其中《夸克》和《改变世界的方程》的中译本拥有众多读者。