北大核科学论坛第376-377期

#376#

报告题目:Structure and reactions of halo nuclei 

报告人:Professor Enrico Vigezzi

单位:INFN Sezione di Milano, Via Celoria

时间:5月21日 (周一) 下午 2:30

地点:物理学院7802会议室(西217)

报告摘要:The explicit consideration of core degrees of freedom is crucial in order to obtain an accurate description of the structure and reactions of light exotic nuclei. In particular, it is important to consider the role of ground state correlations, respecting the Pauli principle, and including at the same time the continuum in the calculations (1).This is possible in the framework of Nuclear Field Theory, taking the coupling of valence particles and core vibrations in a consistent way. I will present calculations of the spectrum and of direct reactions on N=7 isotones, going from the halo nuclei 10Li and 11Be to the more bound systems 12B and 13C.

#377#

报告题目:Odd nuclei: single-particle states, hybrid states and beta-decay

报告人:Professor Gianluca Colo

单位:Università degli Studi di Milano

时间:5月21日 (周一) 下午4:00

地点:物理学院7802会议室(西217)

报告摘要:Modern Energy Density Functionals (EDFs) have reached a high level of sophistication and, if well calibrated, can account for bulk nuclear properties of nuclei like masses, radii, as well as for the properties of collective vibrations and rotations. Spectroscopic properties should be treated at higher level of approximation. In this talk, we discuss two typical processes that are very sensitive to the details of low-lying nuclear structure around a core, namely beta- and gamma-decay. We introduce models that include single-particle states, collective vibrations, and hybrid states that result from their mutual coupling. We show that we can obtain an overall description of many data, making a bridge between EDFs and spectroscopy.

联系人:孟杰(mengj@pku.edu.cn)