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arXiv · 1605.01337

Magnetic moments of the hidden-charm pentaquark states

Guang-Juan Wang·Rui Chen·Li Ma·Xiang Liu·Shi-Lin Zhu
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Abstract

The magnetic moment of a baryon state is an equally important dynamical observable as its mass, which encodes crucial information of its underlying structure. According to the different color-flavor structure, we have calculated the magnetic moments of the hidden-charm pentaquark states with $J^P={\frac{1}{2}}^{\pm}$, ${\frac{3}{2}}^{\pm}$, ${\frac{5}{2}}^{\pm}$ and ${\frac{7}{2}}^{+}$ in the molecular model, the diquark-triquark model and the diquark-diquark-antiquark model respectively. Although a good description for the pentaquark mass spectrum and decay patterns has been obtained in all the three models, different color-flavor structures lead to different magnetic moments, which can be used to pin down their inner structures and distinguish various models.

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Guang-Juan Wang, Rui Chen, Li Ma, Xiang Liu, Shi-Lin Zhu. 2016-05-04. Magnetic moments of the hidden-charm pentaquark states. https://doi.org/10.1103/physrevd.94.094018

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