Electromagnetic properties of ${\bar{D}}^{(\ast )}{\mathrm{\Xi }}_c^{\mathrm{\prime }}$, ${\bar{D}}^{(\ast )}{\mathrm{\Lambda }}_c$, ${\bar{D}}_s^{(\ast )}{\mathrm{\Lambda }}_c$ and ${\bar{D}}_s^{(\ast )}{\mathrm{\Xi }}_c$ pentaquarks

To elucidate the internal structure of exotic states is one of the central purposes of hadron physics. Motivated by this, we study the electromagnetic properties of ${\bar{D}}^{(\ast )}{\mathrm{\Xi }}_c^{\mathrm{\prime }}$, ${\bar{D}}^{(\ast )}{\mathrm{\Lambda }}_c$, ${\bar{D}}_s^{(\ast )}{\mathrm{\Lambda }}_c$ and ${\bar{D}}_s^{(\ast )}{\mathrm{\Xi }}_c$ pentaquarks without strange, with strange and with double strange through QCD light-cone sum rules. We have also evaluated electric quadrupole and magnetic octupole moments of the ${\bar{D}}^{\ast }{\mathrm{\Xi }}_c^{\mathrm{\prime }}$, ${\bar{D}}^{\ast }{\mathrm{\Lambda }}_c$, ${\bar{D}}_s^{\ast }{\mathrm{\Lambda }}_c$ and ${\bar{D}}_s^{\ast }{\mathrm{\Xi }}_c$ pentaquarks. The magnetic dipole moment is the leading-order response of a bound system to a soft external magnetic field. Thus, it ensures a prominent platform for the examination of the internal organizations of hadrons governed by the quark-gluon dynamics of QCD. We look forward to the present study stimulating the interest of experimentalists in investigating the electromagnetic properties of the hidden-charm pentaquarks.