The properties of the <i>S</i> -wave <i> D <sub>s</sub> D <sub>s</sub> </i> bound state*
Abstract In this work, we investigate possible bound states in the system using the Bethe-Salpeter (BS) formalism within both the ladder and instantaneous approximations. By numerically solving the Bethe-Salpeter equation with a kernel that incorporates contributions from ϕ and meson exchanges, we confirm the existence of a loosely bound state. Furthermore, we explore the partial decay widths of the bound state into the , , and channels, and observe that these widths are sensitive to the model parameter α . Notably, we find the dominant decay channel for the bound state to be .
Authors
- Jing-Juan Qi
- Zhufeng Zhang (ORCID: https://orcid.org/0000-0002-4418-6965)
- Zhen-Yang Wang (ORCID: https://orcid.org/0000-0002-4074-7892)
- Xin-Heng 郭新恒 Guo
Institutions
- Ningbo University (CN)
- Zhejiang Wanli University (CN)
- Kunming University (CN)
- Chinese Academy of Sciences (CN)
- Institute of Theoretical Physics (CN)
Publication Details
- Journal
- Chinese Physics C
- Published
- 2025-10-10
- DOI
- https://doi.org/10.1088/1674-1137/ae1195
- Primary Topic
- Seismic Imaging and Inversion Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Chinese Academy of Sciences