瑞典皇家科学院10月11日的公报宣布了1995年诺贝尔物理奖的获奖人。美国的马丁·佩尔(Martin L.Perl)教授因20年前在领导发现第三代荷电轻子τ实验中的杰出贡献而成为获奖人之一。迄今为止的研究表明:构成自然界各种物质的最小单元是12种不同类型的“基本砖块”、即六种夸克和六种轻子。它们有引人注目的“代”特性,即夸克和轻子各自分别为三代:u夸克与d夸克为第一代,c夸克与s夸克为第二 The Bulletin of the Royal Swedish Academy of Sciences on October 11 announced the winner of the 1995 Nobel Prize in Physics. Professor Martin L. Perl of the United States became one of the recipients for his outstanding contribution to the leadership of the discovery of the third generation of charged leptons τ experiment 20 years ago. Studies to date have shown that the smallest units that make up the various substances in nature are twelve different types of “elementary bricks,” six quarks and six leptons. They have compelling “generation” features, namely quarks and leptons each for three generations respectively: u quark with d quark as first generation, c quark with s quark as second