报告题目：The structure of nuclei around 100Sn

报 告 人：Chong Qi，Department of Physics, Royal Institute of Technology (KTH), Sweden)

报告时间：4月2日14:00

报告地点：物理系三楼报告厅

报告摘要：In this talk I would like to address a few issues regarding the seniority structure of nuclei around 100Sn. In particular, I will show that the seniority symmetry is dynamically conserved in j=9/2 shells irrespective of type of interaction. This may be a unique phenomenon for nuclear physics, which is characterized by large spinorbit coupling. The collectivity in Sn isotopes may be enhanced by the mutual effect of seniority and pesudospin symmetry. Moreover, I will show for systems with equal number of protons and neutrons, the seniority coupling is broken and, as a result, a new form of spin-aligned proton neutron pair coupling is favored. It should be mentioned that all these works are done in collaboration with or inspired by experimentalists in Stockholm and other groups.