On the charge distribution of $d^{\ast }(2380)$

We calculate the charge distributions of $d^{\ast }(2380)$. Two different interpretations of the $d^{\ast }$ are considered for a comparison. One is a compact explanation with coupled $\mathrm{\Delta }\mathrm{\Delta }+CC$ two-channel approximation in the chiral constituent quark model. Another is a resonance state of $D_{12}\pi$. The remarkable differences of the charge distributions in the two pictures are shown and it is expected that the future experiments may provide a clear test for the different theoretical interpretations.