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arXiv 2602.14766hep-ph
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重新审视charm介子混合谱学

Revisiting charmonium hybrid spectroscopy

Lanzhou University(兰州大学);Anhui Science and Technology University(安徽科技学院);Institute of Modern Physics of CAS(中国科学院近代物理研究所)

Ri-Qing Qian, Bing Chen, Xiang Liu

AI总结:

本文基于构成胶子模型,预测charm介子混合态的质量范围,并提供实验可检验的特征信号以寻找这些奇异态。

摘要:

具有明确胶子自由度的强子,如charm介子混合态,是理解强相互作用非微扰行为的关键,但它们仍难以通过实验观测。在一种构成胶子模型中,将混合态视为一个c\ar{c}g三体系统,其中胶子为横电胶子,我们预测最轻的混合多重态(J^{PC}=1^{--}, 0^{-+}, 1^{-+}, 2^{-+})的质量范围在4.19至4.32 GeV之间。通过分析其衰变模式,我们提供了具体的、可实验检验的特征信号,以指导当前和未来设施对这些奇异态的搜索。

英文摘要:

Hadrons with explicit gluonic degrees of freedom, such as charmonium hybrids, are key to understanding nonperturbative behavior of strong interaction, yet they remain experimentally elusive. Within a constituent gluon model treating the hybrid as a $c\bar{c}g$ three-body system with a transverse electric gluon, we predict the masses of the lightest hybrid multiplet ($J^{PC}=1^{--}, 0^{-+}, 1^{-+}, 2^{-+}$) to lie in the range $4.19$--$4.32$ GeV. By analyzing their decay patterns, we provide specific, experimentally testable signatures to guide the search for these exotic states at current and future facilities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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