电荷-宇称(CP)对称性破坏和夸克-轻子味物理——写在CP破坏发现和夸克理论提出40周年之际

CP symmetry violation and quark-lepton flavor physics -at the 40's anniversary on discovery of CP violation and quark theory

简要地介绍了与电荷-宇称(CP)对称性破坏和夸克-轻子味物理有关的一些重要进展.从1964年发现CP破坏和提出夸克理论至今,这个领域就一直成为粒子物理研究的前沿领域,已研究和发展了整整40年,取得了许多辉煌的成就.在这篇文章中,着重评述了目前仍然热门的几个主要的研究方向:直接CP破坏的理论研究和实验验证,CP破坏机制和新的CP破坏源,中微子物理和新的味物理,夸克味物理和有效量子场理论,标准模型中味物理参数的预言和超对称大统一理论.同时对我国有关研究组在这些前沿方向做出的重要贡献作了重点简述.可以看出,在CP破坏和味物理这个重要前沿领域,仍然存在着许多未解之谜,使得粒子物理在21世纪既面临着巨大的挑战,又有着不断发展的机遇.

Important progress concerning charge-parity ( CP) symmetry violation and quark-lepton flavorphysics is briefly reviewed. Since the discovery of CP violation and the establishment of the quark theory in 1964 this field has been at the frontier of particle physicsand, and numerous outstanding achievements have been accomplished. Here we describe various research topics of current significance, including the theoretical study and experimental detect of direct CP violation, new sources and mechanism of CP violation, neutrino physics and new flavor physics, quark-flavor physics and effective field theories, determination of basic parameters in the standard model, and supersymmetric unification models. Several important contributions from research groups in China are mentioned. It is seen that there are still many outstanding unsolvedmysteries, and great challenges and opportunities lie ahead.