应物理科学与技术学院、理论物理交流平台和萃英学院邀请，台湾中央研究院特聘研究员郑海扬将做客“格致·创新”论坛第六期。欢迎广大师生届时参加！

主讲人：郑海扬 研究员

题 目：Are there multi-quark hadrons?

时 间：2018年3月27日（星期二）上午9:00

地 点：格致楼3016报告厅

摘要：

The quark model has been applied very successfully in describing the mesons

and baryons and their properties. It is known that all the established mesons are made of a quark and an antiquark, while baryons are composed of three quarks. In principle, hadrons composed with more than three valence quarks are not prohibited by the fundamental theory of strong interactions,namely the so-called QCD. In this talk I'll examine the status of the multi-quark hadrons, including tetraquark mesons, pentquark baryons and hexaquark mesons. We also explain why the quark model often encounters a great challenge in understanding scalar mesons.

主讲人简介：

郑海扬，台湾中央研究院特聘研究员，曾任布鲁克海文国家实验室客座教授，印第安纳大学客座科学家以及中央研究院物理研究所副所长等职位；曾获美国物理学会杰出审稿人、国际学术研究奖等多项荣誉。研究的内容包括B物理、重强子有效场论等。