We have performed a systematic analysis of the low-lying Ωc structures in a coupled-channel approach. We predict a bound state Ωc(2954) below the ΞcKbar threshold, which can be studied in the final states of Ωc(*)π and Ωc(*)γ. Also, the resonances Ωc(3000) and Ωc(3050) can be classified as the lower 1/2- and 3/2- states, respectively. Our present assignments based on this coupled-channel perspective are significantly different from those of traditional three-quark picture and of molecular scenario. The future BelleII and LHCb experiments can search for the bound state Ωc(2954) and measure the spin-parities of particles Ωc(3000) and Ωc(3050) to test our predictions. Moreover, we will try to investigate other analogous systems in future, especially charm and strange sectors, which may be searched by J-PARC.

Biography

吕齐放，湖南师范大学副教授。2009年于郑州大学获得物理学学士学位，2015年于郑州大学获得粒子物理与原子核物理博士学位，2015年至2017年为中国科学院高能物理研究所博士后，2017年7月入职湖南师范大学，2022年5月至2023年5月在日本大阪大学核物理研究中心做访问学者。主要研究方向为强子态的谱和结构，在国内外学术期刊上发表论文60余篇，被引2000余次。

Inviter: Feng-Kun Guo