Lattice QCD study of Λ c Λ c scattering*
Year: 2025
Type: article
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.
Source: Chinese Physics C
Authors: Hanyang 瀚洋 Xing 邢, Yiqi 乙淇 Geng 耿, Chuan 川 Liu 刘, Liuming 柳明 Liu 刘, Peng 鹏 Sun 孙, Jiajun 佳俊 Wu 吴, Zhicheng 志诚 Yan 闫, Ruilin 瑞林 Zhu 朱
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,410
OpenAlex ID: W4408532238