Magnetic moments of the vector hidden-charm tetraquark states

The magnetic moments of the vector hidden-charmed tetraquark states that have been observed, and can be expected to be observed experimentally, have been determined using the light-cone sum rules taking into account the diquark-antidiquark structure with the quantum numbers ${J}^{PC}={1}^{--}$ and ${J}^{PC}={1}^{-+}$. Since these states are considered to have different flavors of light quarks, they have nonzero magnetic moments. The results obtained in this study can be checked for consistency by various methods. The magnetic moments of hadrons encompass useful knowledge about the distribution of charge and magnetization inside hadrons, which helps us to understand their geometrical shapes.