报告题目：Partial wave unitarity and its applications in hadron physics

报 告 人：郑汉青，北京大学

报告时间：2019-12-17 10:00

报告地点：物理系理科楼B315

报告摘要：We review how to establish the production representation for partial wave scattering amplitudes and discuss its application in different processes such as pipi, pi K and pi N elastic scatterings. We show this method is very effective in determining nearby sub threshold resonances, such as sigma, kappa, and newly established N*(890).