Seminar (セミナー)2024.1.30 Cenxi Yuan (Sun Yat-sen University)

The following seminar by Dr Cenxi Yuan (Sun Yat-sen University, China) will take place as follows:

Lecturer: Cenxi Yuan (Sun Yat-sen University in China)
Place: Meeting Room A, Center for Computational Sciences
Date/Time: January 30, 2024, Tuesday, 13:45 pm –
Title: Configuration-Interaction Shell Model (CISM) Understanding of Exotic Nuclei
Abstract: A solid grasp of nuclear forces and models is indispensable to understanding the quantum many-body systems, such as atomic nuclei. There is a wealth of data about exotic nuclei far from the stability line, encompassing information regarding energy levels, electromagnetic characteristics, and α and β decays. Describing these properties within a unified model and under a unified nuclear force is valuable.
In this presentation, I will introduce the Configuration-Interaction Shell Model (CISM) and its applications in exotic nuclei, from light to heavy ones. New nuclides, such as 214U, 207Th, and 18Mg, and their implications for nuclear structure will be discussed. Additionally, I will delve into the analysis of isomeric states within Ag and In isotopes and N = 127 isotones, utilizing nuclear interactions and focusing on Type I and II shell evolution. The talk will also introduce cross-shell excitations and isospin symmetry in light nuclei, highlighting the strongest isospin mixing observed in β decays. Lastly, preliminary findings will be presented regarding the uncertainty associated with CISM when employing a unified nuclear force with varying strengths in proton-proton and neutron-neutron interactions.
Language :English