北大核科学论坛第361期

报告题目:Beyond mean-field description of beta-decays in superfluid nuclei

报告人:  牛一斐研究员(Extreme Light Infrastructure-Nuclear Physics (ELI-NP), Bucharest-Magurele, Romania)

报告时间:2018年 2 月 9 日(周五)下午 4:00

报告地点: 北京大学物理学院 7802 会议室(西 217)

报告摘要:

Nuclear β-decay half-lives set the time scale of the rapid neutron capture process (r-process), and hence are important for understanding the origin of heavy elements in the universe. However, the accurate description of β-decay half-lives is a long-standing hard problem. As a widely used microscopic model, quasiparticle random-phase approximation (QRPA) often overestimates β-decay half-lives. In this talk, I will introduce our newly established self-consistent QRPA + quasiparticle vibration coupling (QPVC) model. With this model, the β-decay half-lives of whole isotopic chains are well reproduced, which shed new light on understanding the r-process.

联系人:孟杰(mengj@pku.edu.cn)