Lattice QCD study of Λ<sub> <i>c</i> </sub>Λ<sub> <i>c</i> </sub> scattering*
Abstract We present the first lattice result of the near threshold scattering with . The calculation is performed on two Wilson-Clover ensembles with pion mass MeV and lattice spacing fm. Lüscher's finite volume method is utilized to extract the scattering parameters from the finite-volume spectrum. The coupled channel is ignored in the scattering analysis based on the observation that the energy levels computed from the and operators do not mix. The channel is not included either since the energy range explored in this study is well below its threshold. Our results indicate that the interaction in the single channel is repulsive, and the scattering length is determined to be fm, where the first error is statistical and the second is systematic.
Authors
- Ruilin Zhu (ORCID: https://orcid.org/0000-0001-6733-859X)
- Jia-Jun Wu (ORCID: https://orcid.org/0000-0003-4583-7691)
- Yiqi Geng
- Liuming Liu (ORCID: https://orcid.org/0000-0002-7988-0631)
- Peng Sun (ORCID: https://orcid.org/0000-0002-0040-8597)
- Chuan Liu (ORCID: https://orcid.org/0000-0003-4497-6868)
- Hanyang Xing (ORCID: https://orcid.org/0000-0002-7127-6587)
- Z. Yan
Institutions
- Nanjing Normal University (CN)
- Chinese Academy of Sciences (CN)
- Peking University (CN)
- Institute of Theoretical Physics (CN)
- Collaborative Innovation Center of Quantum Matter (CN)
- Institute of Modern Physics (CN)
- University of Chinese Academy of Sciences (CN)
Publication Details
- Journal
- Chinese Physics C
- Published
- 2025-03-17
- DOI
- https://doi.org/10.1088/1674-1137/adc11f
- Citations
- 1
- Primary Topic
- Quantum Chromodynamics and Particle Interactions
- Type
- article
- Field-Weighted Citation Impact
- 1.87
Funders
- National Natural Science Foundation of China
- Basic and Applied Basic Research Foundation of Guangdong Province