玻恩-奥本海默近似中的重夸克自旋对称性破缺
高能物理 - 唯象学
2023-09-04 v3
摘要
重夸克自旋对称性因重-轻赝标介子与其矢量伴子之间的质量分裂而被显式破缺。这一事实在质量接近开放味介子对阈值（如X(3872)）的态的物理中起着关键作用。我们证明，这一重夸克自旋对称性破缺来源可在玻恩-奥本海默近似的绝热表示中被系统地纳入。我们验证，包含全部适当的耦合道保证了总角动量、宇称与电荷共轭宇称的守恒。这标志着向基于第一性原理统一研究含隐味的夸克偶素与介子分子迈出了基础一步。
引用
@article{arxiv.2303.17533,
title = {Heavy-Quark spin symmetry breaking in the Born-Oppenheimer approximation},
author = {R. Bruschini},
journal= {arXiv preprint arXiv:2303.17533},
year = {2023}
}
备注
28 pages; v2: added new appendix, edited text in sections I and V, corrected several typos in various equations, introduced additional references; v3: version accepted in JHEP, several minor modifications and additions in the text and equations, new references, typos corrected