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arXiv 2303.04542hep-ph
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预言的类$B_c$分子态的辐射衰变与磁矩

Radiative decays and magnetic moments of the predicted $B_c$-like molecules

Fu-Lai Wang, Si-Qiang Luo, Xiang Liu

AI总结:

本研究采用考虑S-D波混合效应的组分夸克模型,系统研究类$B_c$分子态的跃迁磁矩、辐射衰变行为及磁矩,发现相关电磁性质可用于表征其内部结构并区分常规$B_c$介子态,为实验探索提供理论参考。

摘要:

在本工作中,我们首先结合类$B_c$分子态的质谱,系统研究了其跃迁磁矩及相应的辐射衰变行为,研究采用组分夸克模型,同时考虑了S-D波混合效应。我们的数值结果表明,辐射衰变性质可作为反映这些类$B_c$分子态内部结构的有效物理可观测量。同时,我们还讨论了类$B_c$分子态的磁矩,发现磁矩性质可用于将类$B_c$分子态与具有相同量子数、相近质量的常规$B_c$介子态区分开来。我们期望本研究能够激发实验工作者探索类$B_c$分子态电磁性质(尤其是辐射衰变性质)的兴趣。

英文摘要:

In this work, we first perform a systematic study of the transition magnetic moments and the corresponding radiative decay behaviors of the $B_c$-like molecular states associated with their mass spectra, where the constituent quark model is adopted by considering the $S$-$D$ wave mixing effect. Our numerical results show that the radiative decay properties can be considered as the effective physical observable to reflect the inner structures of these $B_c$-like molecular states. Meanwhile, we also discuss the magnetic moments of the $B_c$-like molecular states, and we find that the magnetic moment properties can be used to distinguish the $B_c$-like molecular states from the conventional $B_c$ mesonic states, which have the same quantum numbers and similar masses. We expect that the present study can inspire the interest of the experimentalist in exploring the electromagnetic properties of the $B_c$-like molecular states, especially the radiative decay properties.

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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