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Abstract:
Nuclear physics study is essential in understanding the nuclear equation of state (EoS), the origin of heavy elements in the universe, as well as the properties of neutrinos. Nuclear collective vibrations, an important mode of nuclear excitations, play important roles in these studies.
In this talk, I will introduce a state-of-art quasiparticle vibration coupling (QPVC) model to study nuclear collective vibrations. Based on this model, the unified description of giant monopole resonances in Sn and Pb isotopes is achieved, which solves the nuclear physics puzzle of “Why are the EoS for tin so soft” lasted for almost 20 years; the description accuracy of beta-decay half-lives is increased by about an order of magnitude, which provides reliable nuclear physics inputs for nucleosynthesis study.
Therefore, this model provides a promising tool for the further study of neutrinoless double beta decay and photo-nuclear reaction. The role of different interaction channels in describing the 0nbb nuclear matrix elements has been clarified, and QPVC model is expected to further reduce the discrepancies of NME calculations among different nuclear models. Vortex photon is proposed as an effective probe to excite giant multipole resonances, which opens a novel avenue in photo-nuclear physics. The opportunities and challenges of 0nbb and photonuclear studies in Jinping Underground Lab and Shanghai Synchrotron Radiation Facility is envisaged.
Host: Prof. Lie-Wen Chen
Alternative online link: https://meeting.tencent.com/dm/47NjzkqcFw4X (id: 584931630 password: 123456)