Nuclear weak-interaction processes in stellar environments

by Prof. Longjun Wang（王龙军） (Southwest University)

Friday 23 Oct 2026, 12:00 → 13:30 Asia/Shanghai

5#/6th-603 - Meeting Room 603 (Science Building)

Abstract:

Elements heavier than iron are synthesized through nucleon-capture processes and nuclear weak decays, under extreme stellar conditions of high temperature, high density, and strong magnetic fields. Nuclear weak-interaction processes (electron capture, beta decay, etc.) in stellar environments are crucial for understanding these nucleosynthesis processes and the environments of nucleosynthesis sites. I will present the effects of high-temperature, high-density, and strong magnetic fields on nuclear weak decay rates, and discuss issues important to astrophysical nucleosynthesis, such as thermometer nuclei, branch-point nuclei, waiting-point nuclei, and related problems.

Biography:

Dr. Longjun Wang is a professor at Southwest University in Chongqing, China. He received his PhD from Shanghai Jiao Tong University in 2016 and then worked as a postdoctoral fellow at the University of North Carolina at Chapel Hill before joining Southwest University in 2019. He is interested in nuclear structure and astrophysics, including high-spin states, neutrinoless double beta decay, stellar electron captures etc. He has more than 50 publications on Phys. Rev. Lett, Phys. Lett. B, Phys. Rev. C (Rapid communication, Letter, Editor’s suggestion) etc.

Host: Prof. Yang Sun

Alternative online link：https://meeting.tencent.com/dm/IFu5PrveRgm5

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