报告题目：Friedrichs-Lee model and Bound states, virtual states, 

                  resonances in hadron physics

报告人：肖志广 研究员 （四川大学）

报告时间：2023年11月9日（周四）下午15:30-16:30

报告地点：北洋园校区49教210室

报告摘要：

Friedrichs-Lee model is a model which couples the bare discrete states with the bare continuum states, where the exact solutions of the bound states, resonances and virtual states can be solved. We review how to use the exact solutions to understand some theoretical aspects of the resonances, virtual states and bound states. In particular, we show that the integration contours in the solutions make the norms for the resonances and virtual states not well-defined, new discrete states can be dynamically generated from the singularity of the form factors, and the behaviors for the near threshold states for the S-waves and higher partial waves can be different. We also review some applications of this model in discussing the properties of the hadron spectrum.

报告人简介：

2005年毕业于北京大学物理学院，理论物理专业，理学博士。 2005-2007, 理论物理研究所交叉中心，博士后 2007-2010, 英国南安普敦大学，博士后 2010-2021, 中国科学技术大学，副教授 2021-现在，四川大学，研究员。